+ <?php p($title);?> +

') + .append($('') + .attr('title', opts.noColorSelectedText) + ) + .html() + ); + } + } + return "

" + html.join('') + "

"; + } + + function hideAll() { + for (var i = 0; i < spectrums.length; i++) { + if (spectrums[i]) { + spectrums[i].hide(); + } + } + } + + function instanceOptions(o, callbackContext) { + var opts = $.extend({}, defaultOpts, o); + opts.callbacks = { + 'move': bind(opts.move, callbackContext), + 'change': bind(opts.change, callbackContext), + 'show': bind(opts.show, callbackContext), + 'hide': bind(opts.hide, callbackContext), + 'beforeShow': bind(opts.beforeShow, callbackContext) + }; + + return opts; + } + + function spectrum(element, o) { + + var opts = instanceOptions(o, element), + flat = opts.flat, + showSelectionPalette = opts.showSelectionPalette, + localStorageKey = opts.localStorageKey, + theme = opts.theme, + callbacks = opts.callbacks, + resize = throttle(reflow, 10), + visible = false, + isDragging = false, + dragWidth = 0, + dragHeight = 0, + dragHelperHeight = 0, + slideHeight = 0, + slideWidth = 0, + alphaWidth = 0, + alphaSlideHelperWidth = 0, + slideHelperHeight = 0, + currentHue = 0, + currentSaturation = 0, + currentValue = 0, + currentAlpha = 1, + palette = [], + paletteArray = [], + paletteLookup = {}, + selectionPalette = opts.selectionPalette.slice(0), + maxSelectionSize = opts.maxSelectionSize, + draggingClass = "sp-dragging", + shiftMovementDirection = null; + + var doc = element.ownerDocument, + body = doc.body, + boundElement = $(element), + disabled = false, + container = $(markup, doc).addClass(theme), + pickerContainer = container.find(".sp-picker-container"), + dragger = container.find(".sp-color"), + dragHelper = container.find(".sp-dragger"), + slider = container.find(".sp-hue"), + slideHelper = container.find(".sp-slider"), + alphaSliderInner = container.find(".sp-alpha-inner"), + alphaSlider = container.find(".sp-alpha"), + alphaSlideHelper = container.find(".sp-alpha-handle"), + textInput = container.find(".sp-input"), + paletteContainer = container.find(".sp-palette"), + initialColorContainer = container.find(".sp-initial"), + cancelButton = container.find(".sp-cancel"), + clearButton = container.find(".sp-clear"), + chooseButton = container.find(".sp-choose"), + toggleButton = container.find(".sp-palette-toggle"), + isInput = boundElement.is("input"), + isInputTypeColor = isInput && boundElement.attr("type") === "color" && inputTypeColorSupport(), + shouldReplace = isInput && !flat, + replacer = (shouldReplace) ? $(replaceInput).addClass(theme).addClass(opts.className).addClass(opts.replacerClassName) : $([]), + offsetElement = (shouldReplace) ? replacer : boundElement, + previewElement = replacer.find(".sp-preview-inner"), + initialColor = opts.color || (isInput && boundElement.val()), + colorOnShow = false, + currentPreferredFormat = opts.preferredFormat, + clickoutFiresChange = !opts.showButtons || opts.clickoutFiresChange, + isEmpty = !initialColor, + allowEmpty = opts.allowEmpty && !isInputTypeColor; + + function applyOptions() { + + if (opts.showPaletteOnly) { + opts.showPalette = true; + } + + toggleButton.text(opts.showPaletteOnly ? opts.togglePaletteMoreText : opts.togglePaletteLessText); + + if (opts.palette) { + palette = opts.palette.slice(0); + paletteArray = $.isArray(palette[0]) ? palette : [palette]; + paletteLookup = {}; + for (var i = 0; i < paletteArray.length; i++) { + for (var j = 0; j < paletteArray[i].length; j++) { + var rgb = tinycolor(paletteArray[i][j]).toRgbString(); + paletteLookup[rgb] = true; + } + } + } + + container.toggleClass("sp-flat", flat); + container.toggleClass("sp-input-disabled", !opts.showInput); + container.toggleClass("sp-alpha-enabled", opts.showAlpha); + container.toggleClass("sp-clear-enabled", allowEmpty); + container.toggleClass("sp-buttons-disabled", !opts.showButtons); + container.toggleClass("sp-palette-buttons-disabled", !opts.togglePaletteOnly); + container.toggleClass("sp-palette-disabled", !opts.showPalette); + container.toggleClass("sp-palette-only", opts.showPaletteOnly); + container.toggleClass("sp-initial-disabled", !opts.showInitial); + container.addClass(opts.className).addClass(opts.containerClassName); + + reflow(); + } + + function initialize() { + + if (IE) { + container.find("*:not(input)").attr("unselectable", "on"); + } + + applyOptions(); + + if (shouldReplace) { + boundElement.after(replacer).hide(); + } + + if (!allowEmpty) { + clearButton.hide(); + } + + if (flat) { + boundElement.after(container).hide(); + } + else { + + var appendTo = opts.appendTo === "parent" ? boundElement.parent() : $(opts.appendTo); + if (appendTo.length !== 1) { + appendTo = $("body"); + } + + appendTo.append(container); + } + + updateSelectionPaletteFromStorage(); + + offsetElement.bind("click.spectrum touchstart.spectrum", function (e) { + if (!disabled) { + toggle(); + } + + e.stopPropagation(); + + if (!$(e.target).is("input")) { + e.preventDefault(); + } + }); + + if(boundElement.is(":disabled") || (opts.disabled === true)) { + disable(); + } + + // Prevent clicks from bubbling up to document. This would cause it to be hidden. + container.click(stopPropagation); + + // Handle user typed input + textInput.change(setFromTextInput); + textInput.bind("paste", function () { + setTimeout(setFromTextInput, 1); + }); + textInput.keydown(function (e) { if (e.keyCode == 13) { setFromTextInput(); } }); + + cancelButton.text(opts.cancelText); + cancelButton.bind("click.spectrum", function (e) { + e.stopPropagation(); + e.preventDefault(); + revert(); + hide(); + }); + + clearButton.attr("title", opts.clearText); + clearButton.bind("click.spectrum", function (e) { + e.stopPropagation(); + e.preventDefault(); + isEmpty = true; + move(); + + if(flat) { + //for the flat style, this is a change event + updateOriginalInput(true); + } + }); + + chooseButton.text(opts.chooseText); + chooseButton.bind("click.spectrum", function (e) { + e.stopPropagation(); + e.preventDefault(); + + if (IE && textInput.is(":focus")) { + textInput.trigger('change'); + } + + if (isValid()) { + updateOriginalInput(true); + hide(); + } + }); + + toggleButton.text(opts.showPaletteOnly ? opts.togglePaletteMoreText : opts.togglePaletteLessText); + toggleButton.bind("click.spectrum", function (e) { + e.stopPropagation(); + e.preventDefault(); + + opts.showPaletteOnly = !opts.showPaletteOnly; + + // To make sure the Picker area is drawn on the right, next to the + // Palette area (and not below the palette), first move the Palette + // to the left to make space for the picker, plus 5px extra. + // The 'applyOptions' function puts the whole container back into place + // and takes care of the button-text and the sp-palette-only CSS class. + if (!opts.showPaletteOnly && !flat) { + container.css('left', '-=' + (pickerContainer.outerWidth(true) + 5)); + } + applyOptions(); + }); + + draggable(alphaSlider, function (dragX, dragY, e) { + currentAlpha = (dragX / alphaWidth); + isEmpty = false; + if (e.shiftKey) { + currentAlpha = Math.round(currentAlpha * 10) / 10; + } + + move(); + }, dragStart, dragStop); + + draggable(slider, function (dragX, dragY) { + currentHue = parseFloat(dragY / slideHeight); + isEmpty = false; + if (!opts.showAlpha) { + currentAlpha = 1; + } + move(); + }, dragStart, dragStop); + + draggable(dragger, function (dragX, dragY, e) { + + // shift+drag should snap the movement to either the x or y axis. + if (!e.shiftKey) { + shiftMovementDirection = null; + } + else if (!shiftMovementDirection) { + var oldDragX = currentSaturation * dragWidth; + var oldDragY = dragHeight - (currentValue * dragHeight); + var furtherFromX = Math.abs(dragX - oldDragX) > Math.abs(dragY - oldDragY); + + shiftMovementDirection = furtherFromX ? "x" : "y"; + } + + var setSaturation = !shiftMovementDirection || shiftMovementDirection === "x"; + var setValue = !shiftMovementDirection || shiftMovementDirection === "y"; + + if (setSaturation) { + currentSaturation = parseFloat(dragX / dragWidth); + } + if (setValue) { + currentValue = parseFloat((dragHeight - dragY) / dragHeight); + } + + isEmpty = false; + if (!opts.showAlpha) { + currentAlpha = 1; + } + + move(); + + }, dragStart, dragStop); + + if (!!initialColor) { + set(initialColor); + + // In case color was black - update the preview UI and set the format + // since the set function will not run (default color is black). + updateUI(); + currentPreferredFormat = opts.preferredFormat || tinycolor(initialColor).format; + + addColorToSelectionPalette(initialColor); + } + else { + updateUI(); + } + + if (flat) { + show(); + } + + function paletteElementClick(e) { + if (e.data && e.data.ignore) { + set($(e.target).closest(".sp-thumb-el").data("color")); + move(); + } + else { + set($(e.target).closest(".sp-thumb-el").data("color")); + move(); + updateOriginalInput(true); + if (opts.hideAfterPaletteSelect) { + hide(); + } + } + + return false; + } + + var paletteEvent = IE ? "mousedown.spectrum" : "click.spectrum touchstart.spectrum"; + paletteContainer.delegate(".sp-thumb-el", paletteEvent, paletteElementClick); + initialColorContainer.delegate(".sp-thumb-el:nth-child(1)", paletteEvent, { ignore: true }, paletteElementClick); + } + + function updateSelectionPaletteFromStorage() { + + if (localStorageKey && window.localStorage) { + + // Migrate old palettes over to new format. May want to remove this eventually. + try { + var oldPalette = window.localStorage[localStorageKey].split(",#"); + if (oldPalette.length > 1) { + delete window.localStorage[localStorageKey]; + $.each(oldPalette, function(i, c) { + addColorToSelectionPalette(c); + }); + } + } + catch(e) { } + + try { + selectionPalette = window.localStorage[localStorageKey].split(";"); + } + catch (e) { } + } + } + + function addColorToSelectionPalette(color) { + if (showSelectionPalette) { + var rgb = tinycolor(color).toRgbString(); + if (!paletteLookup[rgb] && $.inArray(rgb, selectionPalette) === -1) { + selectionPalette.push(rgb); + while(selectionPalette.length > maxSelectionSize) { + selectionPalette.shift(); + } + } + + if (localStorageKey && window.localStorage) { + try { + window.localStorage[localStorageKey] = selectionPalette.join(";"); + } + catch(e) { } + } + } + } + + function getUniqueSelectionPalette() { + var unique = []; + if (opts.showPalette) { + for (var i = 0; i < selectionPalette.length; i++) { + var rgb = tinycolor(selectionPalette[i]).toRgbString(); + + if (!paletteLookup[rgb]) { + unique.push(selectionPalette[i]); + } + } + } + + return unique.reverse().slice(0, opts.maxSelectionSize); + } + + function drawPalette() { + + var currentColor = get(); + + var html = $.map(paletteArray, function (palette, i) { + return paletteTemplate(palette, currentColor, "sp-palette-row sp-palette-row-" + i, opts); + }); + + updateSelectionPaletteFromStorage(); + + if (selectionPalette) { + html.push(paletteTemplate(getUniqueSelectionPalette(), currentColor, "sp-palette-row sp-palette-row-selection", opts)); + } + + paletteContainer.html(html.join("")); + } + + function drawInitial() { + if (opts.showInitial) { + var initial = colorOnShow; + var current = get(); + initialColorContainer.html(paletteTemplate([initial, current], current, "sp-palette-row-initial", opts)); + } + } + + function dragStart() { + if (dragHeight <= 0 || dragWidth <= 0 || slideHeight <= 0) { + reflow(); + } + isDragging = true; + container.addClass(draggingClass); + shiftMovementDirection = null; + boundElement.trigger('dragstart.spectrum', [ get() ]); + } + + function dragStop() { + isDragging = false; + container.removeClass(draggingClass); + boundElement.trigger('dragstop.spectrum', [ get() ]); + } + + function setFromTextInput() { + + var value = textInput.val(); + + if ((value === null || value === "") && allowEmpty) { + set(null); + updateOriginalInput(true); + } + else { + var tiny = tinycolor(value); + if (tiny.isValid()) { + set(tiny); + updateOriginalInput(true); + } + else { + textInput.addClass("sp-validation-error"); + } + } + } + + function toggle() { + if (visible) { + hide(); + } + else { + show(); + } + } + + function show() { + var event = $.Event('beforeShow.spectrum'); + + if (visible) { + reflow(); + return; + } + + boundElement.trigger(event, [ get() ]); + + if (callbacks.beforeShow(get()) === false || event.isDefaultPrevented()) { + return; + } + + hideAll(); + visible = true; + + $(doc).bind("keydown.spectrum", onkeydown); + $(doc).bind("click.spectrum", clickout); + $(window).bind("resize.spectrum", resize); + replacer.addClass("sp-active"); + container.removeClass("sp-hidden"); + + reflow(); + updateUI(); + + colorOnShow = get(); + + drawInitial(); + callbacks.show(colorOnShow); + boundElement.trigger('show.spectrum', [ colorOnShow ]); + } + + function onkeydown(e) { + // Close on ESC + if (e.keyCode === 27) { + hide(); + } + } + + function clickout(e) { + // Return on right click. + if (e.button == 2) { return; } + + // If a drag event was happening during the mouseup, don't hide + // on click. + if (isDragging) { return; } + + if (clickoutFiresChange) { + updateOriginalInput(true); + } + else { + revert(); + } + hide(); + } + + function hide() { + // Return if hiding is unnecessary + if (!visible || flat) { return; } + visible = false; + + $(doc).unbind("keydown.spectrum", onkeydown); + $(doc).unbind("click.spectrum", clickout); + $(window).unbind("resize.spectrum", resize); + + replacer.removeClass("sp-active"); + container.addClass("sp-hidden"); + + callbacks.hide(get()); + boundElement.trigger('hide.spectrum', [ get() ]); + } + + function revert() { + set(colorOnShow, true); + } + + function set(color, ignoreFormatChange) { + if (tinycolor.equals(color, get())) { + // Update UI just in case a validation error needs + // to be cleared. + updateUI(); + return; + } + + var newColor, newHsv; + if (!color && allowEmpty) { + isEmpty = true; + } else { + isEmpty = false; + newColor = tinycolor(color); + newHsv = newColor.toHsv(); + + currentHue = (newHsv.h % 360) / 360; + currentSaturation = newHsv.s; + currentValue = newHsv.v; + currentAlpha = newHsv.a; + } + updateUI(); + + if (newColor && newColor.isValid() && !ignoreFormatChange) { + currentPreferredFormat = opts.preferredFormat || newColor.getFormat(); + } + } + + function get(opts) { + opts = opts || { }; + + if (allowEmpty && isEmpty) { + return null; + } + + return tinycolor.fromRatio({ + h: currentHue, + s: currentSaturation, + v: currentValue, + a: Math.round(currentAlpha * 100) / 100 + }, { format: opts.format || currentPreferredFormat }); + } + + function isValid() { + return !textInput.hasClass("sp-validation-error"); + } + + function move() { + updateUI(); + + callbacks.move(get()); + boundElement.trigger('move.spectrum', [ get() ]); + } + + function updateUI() { + + textInput.removeClass("sp-validation-error"); + + updateHelperLocations(); + + // Update dragger background color (gradients take care of saturation and value). + var flatColor = tinycolor.fromRatio({ h: currentHue, s: 1, v: 1 }); + dragger.css("background-color", flatColor.toHexString()); + + // Get a format that alpha will be included in (hex and names ignore alpha) + var format = currentPreferredFormat; + if (currentAlpha < 1 && !(currentAlpha === 0 && format === "name")) { + if (format === "hex" || format === "hex3" || format === "hex6" || format === "name") { + format = "rgb"; + } + } + + var realColor = get({ format: format }), + displayColor = ''; + + //reset background info for preview element + previewElement.removeClass("sp-clear-display"); + previewElement.css('background-color', 'transparent'); + + if (!realColor && allowEmpty) { + // Update the replaced elements background with icon indicating no color selection + previewElement.addClass("sp-clear-display"); + } + else { + var realHex = realColor.toHexString(), + realRgb = realColor.toRgbString(); + + // Update the replaced elements background color (with actual selected color) + if (rgbaSupport || realColor.alpha === 1) { + previewElement.css("background-color", realRgb); + } + else { + previewElement.css("background-color", "transparent"); + previewElement.css("filter", realColor.toFilter()); + } + + if (opts.showAlpha) { + var rgb = realColor.toRgb(); + rgb.a = 0; + var realAlpha = tinycolor(rgb).toRgbString(); + var gradient = "linear-gradient(left, " + realAlpha + ", " + realHex + ")"; + + if (IE) { + alphaSliderInner.css("filter", tinycolor(realAlpha).toFilter({ gradientType: 1 }, realHex)); + } + else { + alphaSliderInner.css("background", "-webkit-" + gradient); + alphaSliderInner.css("background", "-moz-" + gradient); + alphaSliderInner.css("background", "-ms-" + gradient); + // Use current syntax gradient on unprefixed property. + alphaSliderInner.css("background", + "linear-gradient(to right, " + realAlpha + ", " + realHex + ")"); + } + } + + displayColor = realColor.toString(format); + } + + // Update the text entry input as it changes happen + if (opts.showInput) { + textInput.val(displayColor); + } + + if (opts.showPalette) { + drawPalette(); + } + + drawInitial(); + } + + function updateHelperLocations() { + var s = currentSaturation; + var v = currentValue; + + if(allowEmpty && isEmpty) { + //if selected color is empty, hide the helpers + alphaSlideHelper.hide(); + slideHelper.hide(); + dragHelper.hide(); + } + else { + //make sure helpers are visible + alphaSlideHelper.show(); + slideHelper.show(); + dragHelper.show(); + + // Where to show the little circle in that displays your current selected color + var dragX = s * dragWidth; + var dragY = dragHeight - (v * dragHeight); + dragX = Math.max( + -dragHelperHeight, + Math.min(dragWidth - dragHelperHeight, dragX - dragHelperHeight) + ); + dragY = Math.max( + -dragHelperHeight, + Math.min(dragHeight - dragHelperHeight, dragY - dragHelperHeight) + ); + dragHelper.css({ + "top": dragY + "px", + "left": dragX + "px" + }); + + var alphaX = currentAlpha * alphaWidth; + alphaSlideHelper.css({ + "left": (alphaX - (alphaSlideHelperWidth / 2)) + "px" + }); + + // Where to show the bar that displays your current selected hue + var slideY = (currentHue) * slideHeight; + slideHelper.css({ + "top": (slideY - slideHelperHeight) + "px" + }); + } + } + + function updateOriginalInput(fireCallback) { + var color = get(), + displayColor = '', + hasChanged = !tinycolor.equals(color, colorOnShow); + + if (color) { + displayColor = color.toString(currentPreferredFormat); + // Update the selection palette with the current color + addColorToSelectionPalette(color); + } + + if (isInput) { + boundElement.val(displayColor); + } + + if (fireCallback && hasChanged) { + callbacks.change(color); + boundElement.trigger('change', [ color ]); + } + } + + function reflow() { + if (!visible) { + return; // Calculations would be useless and wouldn't be reliable anyways + } + dragWidth = dragger.width(); + dragHeight = dragger.height(); + dragHelperHeight = dragHelper.height(); + slideWidth = slider.width(); + slideHeight = slider.height(); + slideHelperHeight = slideHelper.height(); + alphaWidth = alphaSlider.width(); + alphaSlideHelperWidth = alphaSlideHelper.width(); + + if (!flat) { + container.css("position", "absolute"); + if (opts.offset) { + container.offset(opts.offset); + } else { + container.offset(getOffset(container, offsetElement)); + } + } + + updateHelperLocations(); + + if (opts.showPalette) { + drawPalette(); + } + + boundElement.trigger('reflow.spectrum'); + } + + function destroy() { + boundElement.show(); + offsetElement.unbind("click.spectrum touchstart.spectrum"); + container.remove(); + replacer.remove(); + spectrums[spect.id] = null; + } + + function option(optionName, optionValue) { + if (optionName === undefined) { + return $.extend({}, opts); + } + if (optionValue === undefined) { + return opts[optionName]; + } + + opts[optionName] = optionValue; + + if (optionName === "preferredFormat") { + currentPreferredFormat = opts.preferredFormat; + } + applyOptions(); + } + + function enable() { + disabled = false; + boundElement.attr("disabled", false); + offsetElement.removeClass("sp-disabled"); + } + + function disable() { + hide(); + disabled = true; + boundElement.attr("disabled", true); + offsetElement.addClass("sp-disabled"); + } + + function setOffset(coord) { + opts.offset = coord; + reflow(); + } + + initialize(); + + var spect = { + show: show, + hide: hide, + toggle: toggle, + reflow: reflow, + option: option, + enable: enable, + disable: disable, + offset: setOffset, + set: function (c) { + set(c); + updateOriginalInput(); + }, + get: get, + destroy: destroy, + container: container + }; + + spect.id = spectrums.push(spect) - 1; + + return spect; + } + + /** + * checkOffset - get the offset below/above and left/right element depending on screen position + * Thanks https://github.com/jquery/jquery-ui/blob/master/ui/jquery.ui.datepicker.js + */ + function getOffset(picker, input) { + var extraY = 0; + var dpWidth = picker.outerWidth(); + var dpHeight = picker.outerHeight(); + var inputHeight = input.outerHeight(); + var doc = picker[0].ownerDocument; + var docElem = doc.documentElement; + var viewWidth = docElem.clientWidth + $(doc).scrollLeft(); + var viewHeight = docElem.clientHeight + $(doc).scrollTop(); + var offset = input.offset(); + offset.top += inputHeight; + + offset.left -= + Math.min(offset.left, (offset.left + dpWidth > viewWidth && viewWidth > dpWidth) ? + Math.abs(offset.left + dpWidth - viewWidth) : 0); + + offset.top -= + Math.min(offset.top, ((offset.top + dpHeight > viewHeight && viewHeight > dpHeight) ? + Math.abs(dpHeight + inputHeight - extraY) : extraY)); + + return offset; + } + + /** + * noop - do nothing + */ + function noop() { + + } + + /** + * stopPropagation - makes the code only doing this a little easier to read in line + */ + function stopPropagation(e) { + e.stopPropagation(); + } + + /** + * Create a function bound to a given object + * Thanks to underscore.js + */ + function bind(func, obj) { + var slice = Array.prototype.slice; + var args = slice.call(arguments, 2); + return function () { + return func.apply(obj, args.concat(slice.call(arguments))); + }; + } + + /** + * Lightweight drag helper. Handles containment within the element, so that + * when dragging, the x is within [0,element.width] and y is within [0,element.height] + */ + function draggable(element, onmove, onstart, onstop) { + onmove = onmove || function () { }; + onstart = onstart || function () { }; + onstop = onstop || function () { }; + var doc = document; + var dragging = false; + var offset = {}; + var maxHeight = 0; + var maxWidth = 0; + var hasTouch = ('ontouchstart' in window); + + var duringDragEvents = {}; + duringDragEvents["selectstart"] = prevent; + duringDragEvents["dragstart"] = prevent; + duringDragEvents["touchmove mousemove"] = move; + duringDragEvents["touchend mouseup"] = stop; + + function prevent(e) { + if (e.stopPropagation) { + e.stopPropagation(); + } + if (e.preventDefault) { + e.preventDefault(); + } + e.returnValue = false; + } + + function move(e) { + if (dragging) { + // Mouseup happened outside of window + if (IE && doc.documentMode < 9 && !e.button) { + return stop(); + } + + var t0 = e.originalEvent && e.originalEvent.touches && e.originalEvent.touches[0]; + var pageX = t0 && t0.pageX || e.pageX; + var pageY = t0 && t0.pageY || e.pageY; + + var dragX = Math.max(0, Math.min(pageX - offset.left, maxWidth)); + var dragY = Math.max(0, Math.min(pageY - offset.top, maxHeight)); + + if (hasTouch) { + // Stop scrolling in iOS + prevent(e); + } + + onmove.apply(element, [dragX, dragY, e]); + } + } + + function start(e) { + var rightclick = (e.which) ? (e.which == 3) : (e.button == 2); + + if (!rightclick && !dragging) { + if (onstart.apply(element, arguments) !== false) { + dragging = true; + maxHeight = $(element).height(); + maxWidth = $(element).width(); + offset = $(element).offset(); + + $(doc).bind(duringDragEvents); + $(doc.body).addClass("sp-dragging"); + + move(e); + + prevent(e); + } + } + } + + function stop() { + if (dragging) { + $(doc).unbind(duringDragEvents); + $(doc.body).removeClass("sp-dragging"); + + // Wait a tick before notifying observers to allow the click event + // to fire in Chrome. + setTimeout(function() { + onstop.apply(element, arguments); + }, 0); + } + dragging = false; + } + + $(element).bind("touchstart mousedown", start); + } + + function throttle(func, wait, debounce) { + var timeout; + return function () { + var context = this, args = arguments; + var throttler = function () { + timeout = null; + func.apply(context, args); + }; + if (debounce) clearTimeout(timeout); + if (debounce || !timeout) timeout = setTimeout(throttler, wait); + }; + } + + function inputTypeColorSupport() { + return $.fn.spectrum.inputTypeColorSupport(); + } + + /** + * Define a jQuery plugin + */ + var dataID = "spectrum.id"; + $.fn.spectrum = function (opts, extra) { + + if (typeof opts == "string") { + + var returnValue = this; + var args = Array.prototype.slice.call( arguments, 1 ); + + this.each(function () { + var spect = spectrums[$(this).data(dataID)]; + if (spect) { + var method = spect[opts]; + if (!method) { + throw new Error( "Spectrum: no such method: '" + opts + "'" ); + } + + if (opts == "get") { + returnValue = spect.get(); + } + else if (opts == "container") { + returnValue = spect.container; + } + else if (opts == "option") { + returnValue = spect.option.apply(spect, args); + } + else if (opts == "destroy") { + spect.destroy(); + $(this).removeData(dataID); + } + else { + method.apply(spect, args); + } + } + }); + + return returnValue; + } + + // Initializing a new instance of spectrum + return this.spectrum("destroy").each(function () { + var options = $.extend({}, opts, $(this).data()); + var spect = spectrum(this, options); + $(this).data(dataID, spect.id); + }); + }; + + $.fn.spectrum.load = true; + $.fn.spectrum.loadOpts = {}; + $.fn.spectrum.draggable = draggable; + $.fn.spectrum.defaults = defaultOpts; + $.fn.spectrum.inputTypeColorSupport = function inputTypeColorSupport() { + if (typeof inputTypeColorSupport._cachedResult === "undefined") { + var colorInput = $("")[0]; // if color element is supported, value will default to not null + inputTypeColorSupport._cachedResult = colorInput.type === "color" && colorInput.value !== ""; + } + return inputTypeColorSupport._cachedResult; + }; + + $.spectrum = { }; + $.spectrum.localization = { }; + $.spectrum.palettes = { }; + + $.fn.spectrum.processNativeColorInputs = function () { + var colorInputs = $("input[type=color]"); + if (colorInputs.length && !inputTypeColorSupport()) { + colorInputs.spectrum({ + preferredFormat: "hex6" + }); + } + }; + + // TinyColor v1.1.2 + // https://github.com/bgrins/TinyColor + // Brian Grinstead, MIT License + + (function() { + + var trimLeft = /^[\s,#]+/, + trimRight = /\s+$/, + tinyCounter = 0, + math = Math, + mathRound = math.round, + mathMin = math.min, + mathMax = math.max, + mathRandom = math.random; + + var tinycolor = function(color, opts) { + + color = (color) ? color : ''; + opts = opts || { }; + + // If input is already a tinycolor, return itself + if (color instanceof tinycolor) { + return color; + } + // If we are called as a function, call using new instead + if (!(this instanceof tinycolor)) { + return new tinycolor(color, opts); + } + + var rgb = inputToRGB(color); + this._originalInput = color, + this._r = rgb.r, + this._g = rgb.g, + this._b = rgb.b, + this._a = rgb.a, + this._roundA = mathRound(100*this._a) / 100, + this._format = opts.format || rgb.format; + this._gradientType = opts.gradientType; + + // Don't let the range of [0,255] come back in [0,1]. + // Potentially lose a little bit of precision here, but will fix issues where + // .5 gets interpreted as half of the total, instead of half of 1 + // If it was supposed to be 128, this was already taken care of by `inputToRgb` + if (this._r < 1) { this._r = mathRound(this._r); } + if (this._g < 1) { this._g = mathRound(this._g); } + if (this._b < 1) { this._b = mathRound(this._b); } + + this._ok = rgb.ok; + this._tc_id = tinyCounter++; + }; + + tinycolor.prototype = { + isDark: function() { + return this.getBrightness() < 128; + }, + isLight: function() { + return !this.isDark(); + }, + isValid: function() { + return this._ok; + }, + getOriginalInput: function() { + return this._originalInput; + }, + getFormat: function() { + return this._format; + }, + getAlpha: function() { + return this._a; + }, + getBrightness: function() { + var rgb = this.toRgb(); + return (rgb.r * 299 + rgb.g * 587 + rgb.b * 114) / 1000; + }, + setAlpha: function(value) { + this._a = boundAlpha(value); + this._roundA = mathRound(100*this._a) / 100; + return this; + }, + toHsv: function() { + var hsv = rgbToHsv(this._r, this._g, this._b); + return { h: hsv.h * 360, s: hsv.s, v: hsv.v, a: this._a }; + }, + toHsvString: function() { + var hsv = rgbToHsv(this._r, this._g, this._b); + var h = mathRound(hsv.h * 360), s = mathRound(hsv.s * 100), v = mathRound(hsv.v * 100); + return (this._a == 1) ? + "hsv(" + h + ", " + s + "%, " + v + "%)" : + "hsva(" + h + ", " + s + "%, " + v + "%, "+ this._roundA + ")"; + }, + toHsl: function() { + var hsl = rgbToHsl(this._r, this._g, this._b); + return { h: hsl.h * 360, s: hsl.s, l: hsl.l, a: this._a }; + }, + toHslString: function() { + var hsl = rgbToHsl(this._r, this._g, this._b); + var h = mathRound(hsl.h * 360), s = mathRound(hsl.s * 100), l = mathRound(hsl.l * 100); + return (this._a == 1) ? + "hsl(" + h + ", " + s + "%, " + l + "%)" : + "hsla(" + h + ", " + s + "%, " + l + "%, "+ this._roundA + ")"; + }, + toHex: function(allow3Char) { + return rgbToHex(this._r, this._g, this._b, allow3Char); + }, + toHexString: function(allow3Char) { + return '#' + this.toHex(allow3Char); + }, + toHex8: function() { + return rgbaToHex(this._r, this._g, this._b, this._a); + }, + toHex8String: function() { + return '#' + this.toHex8(); + }, + toRgb: function() { + return { r: mathRound(this._r), g: mathRound(this._g), b: mathRound(this._b), a: this._a }; + }, + toRgbString: function() { + return (this._a == 1) ? + "rgb(" + mathRound(this._r) + ", " + mathRound(this._g) + ", " + mathRound(this._b) + ")" : + "rgba(" + mathRound(this._r) + ", " + mathRound(this._g) + ", " + mathRound(this._b) + ", " + this._roundA + ")"; + }, + toPercentageRgb: function() { + return { r: mathRound(bound01(this._r, 255) * 100) + "%", g: mathRound(bound01(this._g, 255) * 100) + "%", b: mathRound(bound01(this._b, 255) * 100) + "%", a: this._a }; + }, + toPercentageRgbString: function() { + return (this._a == 1) ? + "rgb(" + mathRound(bound01(this._r, 255) * 100) + "%, " + mathRound(bound01(this._g, 255) * 100) + "%, " + mathRound(bound01(this._b, 255) * 100) + "%)" : + "rgba(" + mathRound(bound01(this._r, 255) * 100) + "%, " + mathRound(bound01(this._g, 255) * 100) + "%, " + mathRound(bound01(this._b, 255) * 100) + "%, " + this._roundA + ")"; + }, + toName: function() { + if (this._a === 0) { + return "transparent"; + } + + if (this._a < 1) { + return false; + } + + return hexNames[rgbToHex(this._r, this._g, this._b, true)] || false; + }, + toFilter: function(secondColor) { + var hex8String = '#' + rgbaToHex(this._r, this._g, this._b, this._a); + var secondHex8String = hex8String; + var gradientType = this._gradientType ? "GradientType = 1, " : ""; + + if (secondColor) { + var s = tinycolor(secondColor); + secondHex8String = s.toHex8String(); + } + + return "progid:DXImageTransform.Microsoft.gradient("+gradientType+"startColorstr="+hex8String+",endColorstr="+secondHex8String+")"; + }, + toString: function(format) { + var formatSet = !!format; + format = format || this._format; + + var formattedString = false; + var hasAlpha = this._a < 1 && this._a >= 0; + var needsAlphaFormat = !formatSet && hasAlpha && (format === "hex" || format === "hex6" || format === "hex3" || format === "name"); + + if (needsAlphaFormat) { + // Special case for "transparent", all other non-alpha formats + // will return rgba when there is transparency. + if (format === "name" && this._a === 0) { + return this.toName(); + } + return this.toRgbString(); + } + if (format === "rgb") { + formattedString = this.toRgbString(); + } + if (format === "prgb") { + formattedString = this.toPercentageRgbString(); + } + if (format === "hex" || format === "hex6") { + formattedString = this.toHexString(); + } + if (format === "hex3") { + formattedString = this.toHexString(true); + } + if (format === "hex8") { + formattedString = this.toHex8String(); + } + if (format === "name") { + formattedString = this.toName(); + } + if (format === "hsl") { + formattedString = this.toHslString(); + } + if (format === "hsv") { + formattedString = this.toHsvString(); + } + + return formattedString || this.toHexString(); + }, + + _applyModification: function(fn, args) { + var color = fn.apply(null, [this].concat([].slice.call(args))); + this._r = color._r; + this._g = color._g; + this._b = color._b; + this.setAlpha(color._a); + return this; + }, + lighten: function() { + return this._applyModification(lighten, arguments); + }, + brighten: function() { + return this._applyModification(brighten, arguments); + }, + darken: function() { + return this._applyModification(darken, arguments); + }, + desaturate: function() { + return this._applyModification(desaturate, arguments); + }, + saturate: function() { + return this._applyModification(saturate, arguments); + }, + greyscale: function() { + return this._applyModification(greyscale, arguments); + }, + spin: function() { + return this._applyModification(spin, arguments); + }, + + _applyCombination: function(fn, args) { + return fn.apply(null, [this].concat([].slice.call(args))); + }, + analogous: function() { + return this._applyCombination(analogous, arguments); + }, + complement: function() { + return this._applyCombination(complement, arguments); + }, + monochromatic: function() { + return this._applyCombination(monochromatic, arguments); + }, + splitcomplement: function() { + return this._applyCombination(splitcomplement, arguments); + }, + triad: function() { + return this._applyCombination(triad, arguments); + }, + tetrad: function() { + return this._applyCombination(tetrad, arguments); + } + }; + + // If input is an object, force 1 into "1.0" to handle ratios properly + // String input requires "1.0" as input, so 1 will be treated as 1 + tinycolor.fromRatio = function(color, opts) { + if (typeof color == "object") { + var newColor = {}; + for (var i in color) { + if (color.hasOwnProperty(i)) { + if (i === "a") { + newColor[i] = color[i]; + } + else { + newColor[i] = convertToPercentage(color[i]); + } + } + } + color = newColor; + } + + return tinycolor(color, opts); + }; + + // Given a string or object, convert that input to RGB + // Possible string inputs: + // + // "red" + // "#f00" or "f00" + // "#ff0000" or "ff0000" + // "#ff000000" or "ff000000" + // "rgb 255 0 0" or "rgb (255, 0, 0)" + // "rgb 1.0 0 0" or "rgb (1, 0, 0)" + // "rgba (255, 0, 0, 1)" or "rgba 255, 0, 0, 1" + // "rgba (1.0, 0, 0, 1)" or "rgba 1.0, 0, 0, 1" + // "hsl(0, 100%, 50%)" or "hsl 0 100% 50%" + // "hsla(0, 100%, 50%, 1)" or "hsla 0 100% 50%, 1" + // "hsv(0, 100%, 100%)" or "hsv 0 100% 100%" + // + function inputToRGB(color) { + + var rgb = { r: 0, g: 0, b: 0 }; + var a = 1; + var ok = false; + var format = false; + + if (typeof color == "string") { + color = stringInputToObject(color); + } + + if (typeof color == "object") { + if (color.hasOwnProperty("r") && color.hasOwnProperty("g") && color.hasOwnProperty("b")) { + rgb = rgbToRgb(color.r, color.g, color.b); + ok = true; + format = String(color.r).substr(-1) === "%" ? "prgb" : "rgb"; + } + else if (color.hasOwnProperty("h") && color.hasOwnProperty("s") && color.hasOwnProperty("v")) { + color.s = convertToPercentage(color.s); + color.v = convertToPercentage(color.v); + rgb = hsvToRgb(color.h, color.s, color.v); + ok = true; + format = "hsv"; + } + else if (color.hasOwnProperty("h") && color.hasOwnProperty("s") && color.hasOwnProperty("l")) { + color.s = convertToPercentage(color.s); + color.l = convertToPercentage(color.l); + rgb = hslToRgb(color.h, color.s, color.l); + ok = true; + format = "hsl"; + } + + if (color.hasOwnProperty("a")) { + a = color.a; + } + } + + a = boundAlpha(a); + + return { + ok: ok, + format: color.format || format, + r: mathMin(255, mathMax(rgb.r, 0)), + g: mathMin(255, mathMax(rgb.g, 0)), + b: mathMin(255, mathMax(rgb.b, 0)), + a: a + }; + } + + + // Conversion Functions + // -------------------- + + // `rgbToHsl`, `rgbToHsv`, `hslToRgb`, `hsvToRgb` modified from: + // + + // `rgbToRgb` + // Handle bounds / percentage checking to conform to CSS color spec + // + // *Assumes:* r, g, b in [0, 255] or [0, 1] + // *Returns:* { r, g, b } in [0, 255] + function rgbToRgb(r, g, b){ + return { + r: bound01(r, 255) * 255, + g: bound01(g, 255) * 255, + b: bound01(b, 255) * 255 + }; + } + + // `rgbToHsl` + // Converts an RGB color value to HSL. + // *Assumes:* r, g, and b are contained in [0, 255] or [0, 1] + // *Returns:* { h, s, l } in [0,1] + function rgbToHsl(r, g, b) { + + r = bound01(r, 255); + g = bound01(g, 255); + b = bound01(b, 255); + + var max = mathMax(r, g, b), min = mathMin(r, g, b); + var h, s, l = (max + min) / 2; + + if(max == min) { + h = s = 0; // achromatic + } + else { + var d = max - min; + s = l > 0.5 ? d / (2 - max - min) : d / (max + min); + switch(max) { + case r: h = (g - b) / d + (g < b ? 6 : 0); break; + case g: h = (b - r) / d + 2; break; + case b: h = (r - g) / d + 4; break; + } + + h /= 6; + } + + return { h: h, s: s, l: l }; + } + + // `hslToRgb` + // Converts an HSL color value to RGB. + // *Assumes:* h is contained in [0, 1] or [0, 360] and s and l are contained [0, 1] or [0, 100] + // *Returns:* { r, g, b } in the set [0, 255] + function hslToRgb(h, s, l) { + var r, g, b; + + h = bound01(h, 360); + s = bound01(s, 100); + l = bound01(l, 100); + + function hue2rgb(p, q, t) { + if(t < 0) t += 1; + if(t > 1) t -= 1; + if(t < 1/6) return p + (q - p) * 6 * t; + if(t < 1/2) return q; + if(t < 2/3) return p + (q - p) * (2/3 - t) * 6; + return p; + } + + if(s === 0) { + r = g = b = l; // achromatic + } + else { + var q = l < 0.5 ? l * (1 + s) : l + s - l * s; + var p = 2 * l - q; + r = hue2rgb(p, q, h + 1/3); + g = hue2rgb(p, q, h); + b = hue2rgb(p, q, h - 1/3); + } + + return { r: r * 255, g: g * 255, b: b * 255 }; + } + + // `rgbToHsv` + // Converts an RGB color value to HSV + // *Assumes:* r, g, and b are contained in the set [0, 255] or [0, 1] + // *Returns:* { h, s, v } in [0,1] + function rgbToHsv(r, g, b) { + + r = bound01(r, 255); + g = bound01(g, 255); + b = bound01(b, 255); + + var max = mathMax(r, g, b), min = mathMin(r, g, b); + var h, s, v = max; + + var d = max - min; + s = max === 0 ? 0 : d / max; + + if(max == min) { + h = 0; // achromatic + } + else { + switch(max) { + case r: h = (g - b) / d + (g < b ? 6 : 0); break; + case g: h = (b - r) / d + 2; break; + case b: h = (r - g) / d + 4; break; + } + h /= 6; + } + return { h: h, s: s, v: v }; + } + + // `hsvToRgb` + // Converts an HSV color value to RGB. + // *Assumes:* h is contained in [0, 1] or [0, 360] and s and v are contained in [0, 1] or [0, 100] + // *Returns:* { r, g, b } in the set [0, 255] + function hsvToRgb(h, s, v) { + + h = bound01(h, 360) * 6; + s = bound01(s, 100); + v = bound01(v, 100); + + var i = math.floor(h), + f = h - i, + p = v * (1 - s), + q = v * (1 - f * s), + t = v * (1 - (1 - f) * s), + mod = i % 6, + r = [v, q, p, p, t, v][mod], + g = [t, v, v, q, p, p][mod], + b = [p, p, t, v, v, q][mod]; + + return { r: r * 255, g: g * 255, b: b * 255 }; + } + + // `rgbToHex` + // Converts an RGB color to hex + // Assumes r, g, and b are contained in the set [0, 255] + // Returns a 3 or 6 character hex + function rgbToHex(r, g, b, allow3Char) { + + var hex = [ + pad2(mathRound(r).toString(16)), + pad2(mathRound(g).toString(16)), + pad2(mathRound(b).toString(16)) + ]; + + // Return a 3 character hex if possible + if (allow3Char && hex[0].charAt(0) == hex[0].charAt(1) && hex[1].charAt(0) == hex[1].charAt(1) && hex[2].charAt(0) == hex[2].charAt(1)) { + return hex[0].charAt(0) + hex[1].charAt(0) + hex[2].charAt(0); + } + + return hex.join(""); + } + // `rgbaToHex` + // Converts an RGBA color plus alpha transparency to hex + // Assumes r, g, b and a are contained in the set [0, 255] + // Returns an 8 character hex + function rgbaToHex(r, g, b, a) { + + var hex = [ + pad2(convertDecimalToHex(a)), + pad2(mathRound(r).toString(16)), + pad2(mathRound(g).toString(16)), + pad2(mathRound(b).toString(16)) + ]; + + return hex.join(""); + } + + // `equals` + // Can be called with any tinycolor input + tinycolor.equals = function (color1, color2) { + if (!color1 || !color2) { return false; } + return tinycolor(color1).toRgbString() == tinycolor(color2).toRgbString(); + }; + tinycolor.random = function() { + return tinycolor.fromRatio({ + r: mathRandom(), + g: mathRandom(), + b: mathRandom() + }); + }; + + + // Modification Functions + // ---------------------- + // Thanks to less.js for some of the basics here + // + + function desaturate(color, amount) { + amount = (amount === 0) ? 0 : (amount || 10); + var hsl = tinycolor(color).toHsl(); + hsl.s -= amount / 100; + hsl.s = clamp01(hsl.s); + return tinycolor(hsl); + } + + function saturate(color, amount) { + amount = (amount === 0) ? 0 : (amount || 10); + var hsl = tinycolor(color).toHsl(); + hsl.s += amount / 100; + hsl.s = clamp01(hsl.s); + return tinycolor(hsl); + } + + function greyscale(color) { + return tinycolor(color).desaturate(100); + } + + function lighten (color, amount) { + amount = (amount === 0) ? 0 : (amount || 10); + var hsl = tinycolor(color).toHsl(); + hsl.l += amount / 100; + hsl.l = clamp01(hsl.l); + return tinycolor(hsl); + } + + function brighten(color, amount) { + amount = (amount === 0) ? 0 : (amount || 10); + var rgb = tinycolor(color).toRgb(); + rgb.r = mathMax(0, mathMin(255, rgb.r - mathRound(255 * - (amount / 100)))); + rgb.g = mathMax(0, mathMin(255, rgb.g - mathRound(255 * - (amount / 100)))); + rgb.b = mathMax(0, mathMin(255, rgb.b - mathRound(255 * - (amount / 100)))); + return tinycolor(rgb); + } + + function darken (color, amount) { + amount = (amount === 0) ? 0 : (amount || 10); + var hsl = tinycolor(color).toHsl(); + hsl.l -= amount / 100; + hsl.l = clamp01(hsl.l); + return tinycolor(hsl); + } + + // Spin takes a positive or negative amount within [-360, 360] indicating the change of hue. + // Values outside of this range will be wrapped into this range. + function spin(color, amount) { + var hsl = tinycolor(color).toHsl(); + var hue = (mathRound(hsl.h) + amount) % 360; + hsl.h = hue < 0 ? 360 + hue : hue; + return tinycolor(hsl); + } + + // Combination Functions + // --------------------- + // Thanks to jQuery xColor for some of the ideas behind these + // + + function complement(color) { + var hsl = tinycolor(color).toHsl(); + hsl.h = (hsl.h + 180) % 360; + return tinycolor(hsl); + } + + function triad(color) { + var hsl = tinycolor(color).toHsl(); + var h = hsl.h; + return [ + tinycolor(color), + tinycolor({ h: (h + 120) % 360, s: hsl.s, l: hsl.l }), + tinycolor({ h: (h + 240) % 360, s: hsl.s, l: hsl.l }) + ]; + } + + function tetrad(color) { + var hsl = tinycolor(color).toHsl(); + var h = hsl.h; + return [ + tinycolor(color), + tinycolor({ h: (h + 90) % 360, s: hsl.s, l: hsl.l }), + tinycolor({ h: (h + 180) % 360, s: hsl.s, l: hsl.l }), + tinycolor({ h: (h + 270) % 360, s: hsl.s, l: hsl.l }) + ]; + } + + function splitcomplement(color) { + var hsl = tinycolor(color).toHsl(); + var h = hsl.h; + return [ + tinycolor(color), + tinycolor({ h: (h + 72) % 360, s: hsl.s, l: hsl.l}), + tinycolor({ h: (h + 216) % 360, s: hsl.s, l: hsl.l}) + ]; + } + + function analogous(color, results, slices) { + results = results || 6; + slices = slices || 30; + + var hsl = tinycolor(color).toHsl(); + var part = 360 / slices; + var ret = [tinycolor(color)]; + + for (hsl.h = ((hsl.h - (part * results >> 1)) + 720) % 360; --results; ) { + hsl.h = (hsl.h + part) % 360; + ret.push(tinycolor(hsl)); + } + return ret; + } + + function monochromatic(color, results) { + results = results || 6; + var hsv = tinycolor(color).toHsv(); + var h = hsv.h, s = hsv.s, v = hsv.v; + var ret = []; + var modification = 1 / results; + + while (results--) { + ret.push(tinycolor({ h: h, s: s, v: v})); + v = (v + modification) % 1; + } + + return ret; + } + + // Utility Functions + // --------------------- + + tinycolor.mix = function(color1, color2, amount) { + amount = (amount === 0) ? 0 : (amount || 50); + + var rgb1 = tinycolor(color1).toRgb(); + var rgb2 = tinycolor(color2).toRgb(); + + var p = amount / 100; + var w = p * 2 - 1; + var a = rgb2.a - rgb1.a; + + var w1; + + if (w * a == -1) { + w1 = w; + } else { + w1 = (w + a) / (1 + w * a); + } + + w1 = (w1 + 1) / 2; + + var w2 = 1 - w1; + + var rgba = { + r: rgb2.r * w1 + rgb1.r * w2, + g: rgb2.g * w1 + rgb1.g * w2, + b: rgb2.b * w1 + rgb1.b * w2, + a: rgb2.a * p + rgb1.a * (1 - p) + }; + + return tinycolor(rgba); + }; + + + // Readability Functions + // --------------------- + // + + // `readability` + // Analyze the 2 colors and returns an object with the following properties: + // `brightness`: difference in brightness between the two colors + // `color`: difference in color/hue between the two colors + tinycolor.readability = function(color1, color2) { + var c1 = tinycolor(color1); + var c2 = tinycolor(color2); + var rgb1 = c1.toRgb(); + var rgb2 = c2.toRgb(); + var brightnessA = c1.getBrightness(); + var brightnessB = c2.getBrightness(); + var colorDiff = ( + Math.max(rgb1.r, rgb2.r) - Math.min(rgb1.r, rgb2.r) + + Math.max(rgb1.g, rgb2.g) - Math.min(rgb1.g, rgb2.g) + + Math.max(rgb1.b, rgb2.b) - Math.min(rgb1.b, rgb2.b) + ); + + return { + brightness: Math.abs(brightnessA - brightnessB), + color: colorDiff + }; + }; + + // `readable` + // http://www.w3.org/TR/AERT#color-contrast + // Ensure that foreground and background color combinations provide sufficient contrast. + // *Example* + // tinycolor.isReadable("#000", "#111") => false + tinycolor.isReadable = function(color1, color2) { + var readability = tinycolor.readability(color1, color2); + return readability.brightness > 125 && readability.color > 500; + }; + + // `mostReadable` + // Given a base color and a list of possible foreground or background + // colors for that base, returns the most readable color. + // *Example* + // tinycolor.mostReadable("#123", ["#fff", "#000"]) => "#000" + tinycolor.mostReadable = function(baseColor, colorList) { + var bestColor = null; + var bestScore = 0; + var bestIsReadable = false; + for (var i=0; i < colorList.length; i++) { + + // We normalize both around the "acceptable" breaking point, + // but rank brightness constrast higher than hue. + + var readability = tinycolor.readability(baseColor, colorList[i]); + var readable = readability.brightness > 125 && readability.color > 500; + var score = 3 * (readability.brightness / 125) + (readability.color / 500); + + if ((readable && ! bestIsReadable) || + (readable && bestIsReadable && score > bestScore) || + ((! readable) && (! bestIsReadable) && score > bestScore)) { + bestIsReadable = readable; + bestScore = score; + bestColor = tinycolor(colorList[i]); + } + } + return bestColor; + }; + + + // Big List of Colors + // ------------------ + // + var names = tinycolor.names = { + aliceblue: "f0f8ff", + antiquewhite: "faebd7", + aqua: "0ff", + aquamarine: "7fffd4", + azure: "f0ffff", + beige: "f5f5dc", + bisque: "ffe4c4", + black: "000", + blanchedalmond: "ffebcd", + blue: "00f", + blueviolet: "8a2be2", + brown: "a52a2a", + burlywood: "deb887", + burntsienna: "ea7e5d", + cadetblue: "5f9ea0", + chartreuse: "7fff00", + chocolate: "d2691e", + coral: "ff7f50", + cornflowerblue: "6495ed", + cornsilk: "fff8dc", + crimson: "dc143c", + cyan: "0ff", + darkblue: "00008b", + darkcyan: "008b8b", + darkgoldenrod: "b8860b", + darkgray: "a9a9a9", + darkgreen: "006400", + darkgrey: "a9a9a9", + darkkhaki: "bdb76b", + darkmagenta: "8b008b", + darkolivegreen: "556b2f", + darkorange: "ff8c00", + darkorchid: "9932cc", + darkred: "8b0000", + darksalmon: "e9967a", + darkseagreen: "8fbc8f", + darkslateblue: "483d8b", + darkslategray: "2f4f4f", + darkslategrey: "2f4f4f", + darkturquoise: "00ced1", + darkviolet: "9400d3", + deeppink: "ff1493", + deepskyblue: "00bfff", + dimgray: "696969", + dimgrey: "696969", + dodgerblue: "1e90ff", + firebrick: "b22222", + floralwhite: "fffaf0", + forestgreen: "228b22", + fuchsia: "f0f", + gainsboro: "dcdcdc", + ghostwhite: "f8f8ff", + gold: "ffd700", + goldenrod: "daa520", + gray: "808080", + green: "008000", + greenyellow: "adff2f", + grey: "808080", + honeydew: "f0fff0", + hotpink: "ff69b4", + indianred: "cd5c5c", + indigo: "4b0082", + ivory: "fffff0", + khaki: "f0e68c", + lavender: "e6e6fa", + lavenderblush: "fff0f5", + lawngreen: "7cfc00", + lemonchiffon: "fffacd", + lightblue: "add8e6", + lightcoral: "f08080", + lightcyan: "e0ffff", + lightgoldenrodyellow: "fafad2", + lightgray: "d3d3d3", + lightgreen: "90ee90", + lightgrey: "d3d3d3", + lightpink: "ffb6c1", + lightsalmon: "ffa07a", + lightseagreen: "20b2aa", + lightskyblue: "87cefa", + lightslategray: "789", + lightslategrey: "789", + lightsteelblue: "b0c4de", + lightyellow: "ffffe0", + lime: "0f0", + limegreen: "32cd32", + linen: "faf0e6", + magenta: "f0f", + maroon: "800000", + mediumaquamarine: "66cdaa", + mediumblue: "0000cd", + mediumorchid: "ba55d3", + mediumpurple: "9370db", + mediumseagreen: "3cb371", + mediumslateblue: "7b68ee", + mediumspringgreen: "00fa9a", + mediumturquoise: "48d1cc", + mediumvioletred: "c71585", + midnightblue: "191970", + mintcream: "f5fffa", + mistyrose: "ffe4e1", + moccasin: "ffe4b5", + navajowhite: "ffdead", + navy: "000080", + oldlace: "fdf5e6", + olive: "808000", + olivedrab: "6b8e23", + orange: "ffa500", + orangered: "ff4500", + orchid: "da70d6", + palegoldenrod: "eee8aa", + palegreen: "98fb98", + paleturquoise: "afeeee", + palevioletred: "db7093", + papayawhip: "ffefd5", + peachpuff: "ffdab9", + peru: "cd853f", + pink: "ffc0cb", + plum: "dda0dd", + powderblue: "b0e0e6", + purple: "800080", + rebeccapurple: "663399", + red: "f00", + rosybrown: "bc8f8f", + royalblue: "4169e1", + saddlebrown: "8b4513", + salmon: "fa8072", + sandybrown: "f4a460", + seagreen: "2e8b57", + seashell: "fff5ee", + sienna: "a0522d", + silver: "c0c0c0", + skyblue: "87ceeb", + slateblue: "6a5acd", + slategray: "708090", + slategrey: "708090", + snow: "fffafa", + springgreen: "00ff7f", + steelblue: "4682b4", + tan: "d2b48c", + teal: "008080", + thistle: "d8bfd8", + tomato: "ff6347", + turquoise: "40e0d0", + violet: "ee82ee", + wheat: "f5deb3", + white: "fff", + whitesmoke: "f5f5f5", + yellow: "ff0", + yellowgreen: "9acd32" + }; + + // Make it easy to access colors via `hexNames[hex]` + var hexNames = tinycolor.hexNames = flip(names); + + + // Utilities + // --------- + + // `{ 'name1': 'val1' }` becomes `{ 'val1': 'name1' }` + function flip(o) { + var flipped = { }; + for (var i in o) { + if (o.hasOwnProperty(i)) { + flipped[o[i]] = i; + } + } + return flipped; + } + + // Return a valid alpha value [0,1] with all invalid values being set to 1 + function boundAlpha(a) { + a = parseFloat(a); + + if (isNaN(a) || a < 0 || a > 1) { + a = 1; + } + + return a; + } + + // Take input from [0, n] and return it as [0, 1] + function bound01(n, max) { + if (isOnePointZero(n)) { n = "100%"; } + + var processPercent = isPercentage(n); + n = mathMin(max, mathMax(0, parseFloat(n))); + + // Automatically convert percentage into number + if (processPercent) { + n = parseInt(n * max, 10) / 100; + } + + // Handle floating point rounding errors + if ((math.abs(n - max) < 0.000001)) { + return 1; + } + + // Convert into [0, 1] range if it isn't already + return (n % max) / parseFloat(max); + } + + // Force a number between 0 and 1 + function clamp01(val) { + return mathMin(1, mathMax(0, val)); + } + + // Parse a base-16 hex value into a base-10 integer + function parseIntFromHex(val) { + return parseInt(val, 16); + } + + // Need to handle 1.0 as 100%, since once it is a number, there is no difference between it and 1 + // + function isOnePointZero(n) { + return typeof n == "string" && n.indexOf('.') != -1 && parseFloat(n) === 1; + } + + // Check to see if string passed in is a percentage + function isPercentage(n) { + return typeof n === "string" && n.indexOf('%') != -1; + } + + // Force a hex value to have 2 characters + function pad2(c) { + return c.length == 1 ? '0' + c : '' + c; + } + + // Replace a decimal with it's percentage value + function convertToPercentage(n) { + if (n <= 1) { + n = (n * 100) + "%"; + } + + return n; + } + + // Converts a decimal to a hex value + function convertDecimalToHex(d) { + return Math.round(parseFloat(d) * 255).toString(16); + } + // Converts a hex value to a decimal + function convertHexToDecimal(h) { + return (parseIntFromHex(h) / 255); + } + + var matchers = (function() { + + // + var CSS_INTEGER = "[-\\+]?\\d+%?"; + + // + var CSS_NUMBER = "[-\\+]?\\d*\\.\\d+%?"; + + // Allow positive/negative integer/number. Don't capture the either/or, just the entire outcome. + var CSS_UNIT = "(?:" + CSS_NUMBER + ")|(?:" + CSS_INTEGER + ")"; + + // Actual matching. + // Parentheses and commas are optional, but not required. + // Whitespace can take the place of commas or opening paren + var PERMISSIVE_MATCH3 = "[\\s|\$]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")\\s*\$?"; + var PERMISSIVE_MATCH4 = "[\\s|\$]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")\\s*\$?"; + + return { + rgb: new RegExp("rgb" + PERMISSIVE_MATCH3), + rgba: new RegExp("rgba" + PERMISSIVE_MATCH4), + hsl: new RegExp("hsl" + PERMISSIVE_MATCH3), + hsla: new RegExp("hsla" + PERMISSIVE_MATCH4), + hsv: new RegExp("hsv" + PERMISSIVE_MATCH3), + hsva: new RegExp("hsva" + PERMISSIVE_MATCH4), + hex3: /^([0-9a-fA-F]{1})([0-9a-fA-F]{1})([0-9a-fA-F]{1})$/, + hex6: /^([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})$/, + hex8: /^([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})$/ + }; + })(); + + // `stringInputToObject` + // Permissive string parsing. Take in a number of formats, and output an object + // based on detected format. Returns `{ r, g, b }` or `{ h, s, l }` or `{ h, s, v}` + function stringInputToObject(color) { + + color = color.replace(trimLeft,'').replace(trimRight, '').toLowerCase(); + var named = false; + if (names[color]) { + color = names[color]; + named = true; + } + else if (color == 'transparent') { + return { r: 0, g: 0, b: 0, a: 0, format: "name" }; + } + + // Try to match string input using regular expressions. + // Keep most of the number bounding out of this function - don't worry about [0,1] or [0,100] or [0,360] + // Just return an object and let the conversion functions handle that. + // This way the result will be the same whether the tinycolor is initialized with string or object. + var match; + if ((match = matchers.rgb.exec(color))) { + return { r: match[1], g: match[2], b: match[3] }; + } + if ((match = matchers.rgba.exec(color))) { + return { r: match[1], g: match[2], b: match[3], a: match[4] }; + } + if ((match = matchers.hsl.exec(color))) { + return { h: match[1], s: match[2], l: match[3] }; + } + if ((match = matchers.hsla.exec(color))) { + return { h: match[1], s: match[2], l: match[3], a: match[4] }; + } + if ((match = matchers.hsv.exec(color))) { + return { h: match[1], s: match[2], v: match[3] }; + } + if ((match = matchers.hsva.exec(color))) { + return { h: match[1], s: match[2], v: match[3], a: match[4] }; + } + if ((match = matchers.hex8.exec(color))) { + return { + a: convertHexToDecimal(match[1]), + r: parseIntFromHex(match[2]), + g: parseIntFromHex(match[3]), + b: parseIntFromHex(match[4]), + format: named ? "name" : "hex8" + }; + } + if ((match = matchers.hex6.exec(color))) { + return { + r: parseIntFromHex(match[1]), + g: parseIntFromHex(match[2]), + b: parseIntFromHex(match[3]), + format: named ? "name" : "hex" + }; + } + if ((match = matchers.hex3.exec(color))) { + return { + r: parseIntFromHex(match[1] + '' + match[1]), + g: parseIntFromHex(match[2] + '' + match[2]), + b: parseIntFromHex(match[3] + '' + match[3]), + format: named ? "name" : "hex" + }; + } + + return false; + } + + window.tinycolor = tinycolor; + })(); + + $(function () { + if ($.fn.spectrum.load) { + $.fn.spectrum.processNativeColorInputs(); + } + }); + +}); diff --git a/vendor/bitjs/archive/archive.js b/vendor/bitjs/archive/archive.js new file mode 100644 index 0000000..52fc2a2 --- /dev/null +++ b/vendor/bitjs/archive/archive.js @@ -0,0 +1,341 @@ +/** + * archive.js + * + * Provides base functionality for unarchiving. + * + * Licensed under the MIT License + * + * Copyright(c) 2011 Google Inc. + */ + +var bitjs = bitjs || {}; +bitjs.archive = bitjs.archive || {}; + +/** + * An unarchive event. + */ +bitjs.archive.UnarchiveEvent = class { + /** + * @param {string} type The event type. + */ + constructor(type) { + /** + * The event type. + * @type {string} + */ + this.type = type; + } +} + +/** + * The UnarchiveEvent types. + */ +bitjs.archive.UnarchiveEvent.Type = { + START: 'start', + PROGRESS: 'progress', + EXTRACT: 'extract', + FINISH: 'finish', + INFO: 'info', + ERROR: 'error' +}; + +/** + * Useful for passing info up to the client (for debugging). + */ +bitjs.archive.UnarchiveInfoEvent = class extends bitjs.archive.UnarchiveEvent { + /** + * @param {string} msg The info message. + */ + constructor(msg) { + super(bitjs.archive.UnarchiveEvent.Type.INFO); + + /** + * The information message. + * @type {string} + */ + this.msg = msg; + } +} + +/** + * An unrecoverable error has occured. + */ +bitjs.archive.UnarchiveErrorEvent = class extends bitjs.archive.UnarchiveEvent { + /** + * @param {string} msg The error message. + */ + constructor(msg) { + super(bitjs.archive.UnarchiveEvent.Type.ERROR); + + /** + * The information message. + * @type {string} + */ + this.msg = msg; + } +} + +/** + * Start event. + */ +bitjs.archive.UnarchiveStartEvent = class extends bitjs.archive.UnarchiveEvent { + constructor() { + super(bitjs.archive.UnarchiveEvent.Type.START); + } +} + +/** + * Finish event. + */ +bitjs.archive.UnarchiveFinishEvent = class extends bitjs.archive.UnarchiveEvent { + constructor() { + super(bitjs.archive.UnarchiveEvent.Type.FINISH); + } +} + +/** + * Progress event. + */ +bitjs.archive.UnarchiveProgressEvent = class extends bitjs.archive.UnarchiveEvent { + /** + * @param {string} currentFilename + * @param {number} currentFileNumber + * @param {number} currentBytesUnarchivedInFile + * @param {number} currentBytesUnarchived + * @param {number} totalUncompressedBytesInArchive + * @param {number} totalFilesInArchive + */ + constructor(currentFilename, currentFileNumber, currentBytesUnarchivedInFile, + currentBytesUnarchived, totalUncompressedBytesInArchive, totalFilesInArchive) { + super(bitjs.archive.UnarchiveEvent.Type.PROGRESS); + + this.currentFilename = currentFilename; + this.currentFileNumber = currentFileNumber; + this.currentBytesUnarchivedInFile = currentBytesUnarchivedInFile; + this.totalFilesInArchive = totalFilesInArchive; + this.currentBytesUnarchived = currentBytesUnarchived; + this.totalUncompressedBytesInArchive = totalUncompressedBytesInArchive; + } +} + +/** + * Extract event. + */ +bitjs.archive.UnarchiveExtractEvent = class extends bitjs.archive.UnarchiveEvent { + /** + * @param {UnarchivedFile} unarchivedFile + */ + constructor(unarchivedFile) { + super(bitjs.archive.UnarchiveEvent.Type.EXTRACT); + + /** + * @type {UnarchivedFile} + */ + this.unarchivedFile = unarchivedFile; + } +} + +/** + * All extracted files returned by an Unarchiver will implement + * the following interface: + * + * interface UnarchivedFile { + * string filename + * TypedArray fileData + * } + * + */ + +/** + * Base class for all Unarchivers. + */ +bitjs.archive.Unarchiver = class { + /** + * @param {ArrayBuffer} arrayBuffer The Array Buffer. + * @param {string} opt_pathToBitJS Optional string for where the BitJS files are located. + */ + constructor(arrayBuffer, opt_pathToBitJS) { + /** + * The ArrayBuffer object. + * @type {ArrayBuffer} + * @protected + */ + this.ab = arrayBuffer; + + /** + * The path to the BitJS files. + * @type {string} + * @private + */ + this.pathToBitJS_ = opt_pathToBitJS || '/'; + + /** + * A map from event type to an array of listeners. + * @type {Map.} + */ + this.listeners_ = {}; + for (let type in bitjs.archive.UnarchiveEvent.Type) { + this.listeners_[bitjs.archive.UnarchiveEvent.Type[type]] = []; + } + + /** + * Private web worker initialized during start(). + * @type {Worker} + * @private + */ + this.worker_ = null; + } + + /** + * This method must be overridden by the subclass to return the script filename. + * @return {string} The script filename. + * @protected. + */ + getScriptFileName() { + throw 'Subclasses of AbstractUnarchiver must overload getScriptFileName()'; + } + + /** + * Adds an event listener for UnarchiveEvents. + * + * @param {string} Event type. + * @param {function} An event handler function. + */ + addEventListener(type, listener) { + if (type in this.listeners_) { + if (this.listeners_[type].indexOf(listener) == -1) { + this.listeners_[type].push(listener); + } + } + } + + /** + * Removes an event listener. + * + * @param {string} Event type. + * @param {EventListener|function} An event listener or handler function. + */ + removeEventListener(type, listener) { + if (type in this.listeners_) { + const index = this.listeners_[type].indexOf(listener); + if (index != -1) { + this.listeners_[type].splice(index, 1); + } + } + } + + /** + * Receive an event and pass it to the listener functions. + * + * @param {bitjs.archive.UnarchiveEvent} e + * @private + */ + handleWorkerEvent_(e) { + if ((e instanceof bitjs.archive.UnarchiveEvent || e.type) && + this.listeners_[e.type] instanceof Array) { + this.listeners_[e.type].forEach(function (listener) { listener(e) }); + if (e.type == bitjs.archive.UnarchiveEvent.Type.FINISH) { + this.worker_.terminate(); + } + } else { + console.log(e); + } + } + + /** + * Starts the unarchive in a separate Web Worker thread and returns immediately. + */ + start() { + const me = this; + const scriptFileName = this.pathToBitJS_ + this.getScriptFileName(); + if (scriptFileName) { + this.worker_ = new Worker(scriptFileName); + + this.worker_.onerror = function(e) { + console.log('Worker error: message = ' + e.message); + throw e; + }; + + this.worker_.onmessage = function(e) { + if (typeof e.data == 'string') { + // Just log any strings the workers pump our way. + console.log(e.data); + } else { + // Assume that it is an UnarchiveEvent. Some browsers preserve the 'type' + // so that instanceof UnarchiveEvent returns true, but others do not. + me.handleWorkerEvent_(e.data); + } + }; + + this.worker_.postMessage({file: this.ab}); + } + } + + /** + * Terminates the Web Worker for this Unarchiver and returns immediately. + */ + stop() { + if (this.worker_) { + this.worker_.terminate(); + } + } +} + + +/** + * Unzipper + */ +bitjs.archive.Unzipper = class extends bitjs.archive.Unarchiver { + constructor(arrayBuffer, opt_pathToBitJS) { + super(arrayBuffer, opt_pathToBitJS); + } + + getScriptFileName() { return 'archive/unzip.js'; } +} + + +/** + * Unrarrer + */ +bitjs.archive.Unrarrer = class extends bitjs.archive.Unarchiver { + constructor(arrayBuffer, opt_pathToBitJS) { + super(arrayBuffer, opt_pathToBitJS); + } + + getScriptFileName() { return 'archive/unrar.js'; } +} + +/** + * Untarrer + * @extends {bitjs.archive.Unarchiver} + * @constructor + */ +bitjs.archive.Untarrer = class extends bitjs.archive.Unarchiver { + constructor(arrayBuffer, opt_pathToBitJS) { + super(arrayBuffer, opt_pathToBitJS); + } + + getScriptFileName() { return 'archive/untar.js'; }; +} + +/** + * Factory method that creates an unarchiver based on the byte signature found + * in the arrayBuffer. + * @param {ArrayBuffer} ab + * @param {string=} opt_pathToBitJS Path to the unarchiver script files. + * @return {bitjs.archive.Unarchiver} + */ +bitjs.archive.GetUnarchiver = function(ab, opt_pathToBitJS) { + let unarchiver = null; + const pathToBitJS = opt_pathToBitJS || ''; + const h = new Uint8Array(ab, 0, 10); + + if (h[0] == 0x52 && h[1] == 0x61 && h[2] == 0x72 && h[3] == 0x21) { // Rar! + unarchiver = new bitjs.archive.Unrarrer(ab, pathToBitJS); + } else if (h[0] == 0x50 && h[1] == 0x4B) { // PK (Zip) + unarchiver = new bitjs.archive.Unzipper(ab, pathToBitJS); + } else { // Try with tar + unarchiver = new bitjs.archive.Untarrer(ab, pathToBitJS); + } + return unarchiver; +}; diff --git a/vendor/bitjs/archive/rarvm.js b/vendor/bitjs/archive/rarvm.js new file mode 100644 index 0000000..98a1cb8 --- /dev/null +++ b/vendor/bitjs/archive/rarvm.js @@ -0,0 +1,1009 @@ +/** + * rarvm.js + * + * Licensed under the MIT License + * + * Copyright(c) 2017 Google Inc. + */ + +/** + * CRC Implementation. + */ +const CRCTab = new Array(256).fill(0); + +// Helper functions between signed and unsigned integers. + +/** + * -1 becomes 0xffffffff + */ +function fromSigned32ToUnsigned32(val) { + return (val < 0) ? (val += 0x100000000) : val; +} + +/** + * 0xffffffff becomes -1 + */ +function fromUnsigned32ToSigned32(val) { + return (val >= 0x80000000) ? (val -= 0x100000000) : val; +} + +/** + * -1 becomes 0xff + */ +function fromSigned8ToUnsigned8(val) { + return (val < 0) ? (val += 0x100) : val; +} + +/** + * 0xff becomes -1 + */ +function fromUnsigned8ToSigned8(val) { + return (val >= 0x80) ? (val -= 0x100) : val; +} + +function InitCRC() { + for (let i = 0; i < 256; ++i) { + let c = i; + for (let j = 0; j < 8; ++j) { + // Read http://stackoverflow.com/questions/6798111/bitwise-operations-on-32-bit-unsigned-ints + // for the bitwise operator issue (JS interprets operands as 32-bit signed + // integers and we need to deal with unsigned ones here). + c = ((c & 1) ? ((c >>> 1) ^ 0xEDB88320) : (c >>> 1)) >>> 0; + } + CRCTab[i] = c; + } +} + +/** + * @param {number} startCRC + * @param {Uint8Array} arr + * @return {number} + */ +function CRC(startCRC, arr) { + if (CRCTab[1] == 0) { + InitCRC(); + } + +/* +#if defined(LITTLE_ENDIAN) && defined(PRESENT_INT32) && defined(ALLOW_NOT_ALIGNED_INT) + while (Size>0 && ((long)Data & 7)) + { + StartCRC=CRCTab[(byte)(StartCRC^Data[0])]^(StartCRC>>8); + Size--; + Data++; + } + while (Size>=8) + { + StartCRC^=*(uint32 *)Data; + StartCRC=CRCTab[(byte)StartCRC]^(StartCRC>>8); + StartCRC=CRCTab[(byte)StartCRC]^(StartCRC>>8); + StartCRC=CRCTab[(byte)StartCRC]^(StartCRC>>8); + StartCRC=CRCTab[(byte)StartCRC]^(StartCRC>>8); + StartCRC^=*(uint32 *)(Data+4); + StartCRC=CRCTab[(byte)StartCRC]^(StartCRC>>8); + StartCRC=CRCTab[(byte)StartCRC]^(StartCRC>>8); + StartCRC=CRCTab[(byte)StartCRC]^(StartCRC>>8); + StartCRC=CRCTab[(byte)StartCRC]^(StartCRC>>8); + Data+=8; + Size-=8; + } +#endif +*/ + + for (let i = 0; i < arr.length; ++i) { + const byte = ((startCRC ^ arr[i]) >>> 0) & 0xff; + startCRC = (CRCTab[byte] ^ (startCRC >>> 8)) >>> 0; + } + + return startCRC; +} + +// ============================================================================================== // + + +/** + * RarVM Implementation. + */ +const VM_MEMSIZE = 0x40000; +const VM_MEMMASK = (VM_MEMSIZE - 1); +const VM_GLOBALMEMADDR = 0x3C000; +const VM_GLOBALMEMSIZE = 0x2000; +const VM_FIXEDGLOBALSIZE = 64; +const MAXWINSIZE = 0x400000; +const MAXWINMASK = (MAXWINSIZE - 1); + +/** + */ +const VM_Commands = { + VM_MOV: 0, + VM_CMP: 1, + VM_ADD: 2, + VM_SUB: 3, + VM_JZ: 4, + VM_JNZ: 5, + VM_INC: 6, + VM_DEC: 7, + VM_JMP: 8, + VM_XOR: 9, + VM_AND: 10, + VM_OR: 11, + VM_TEST: 12, + VM_JS: 13, + VM_JNS: 14, + VM_JB: 15, + VM_JBE: 16, + VM_JA: 17, + VM_JAE: 18, + VM_PUSH: 19, + VM_POP: 20, + VM_CALL: 21, + VM_RET: 22, + VM_NOT: 23, + VM_SHL: 24, + VM_SHR: 25, + VM_SAR: 26, + VM_NEG: 27, + VM_PUSHA: 28, + VM_POPA: 29, + VM_PUSHF: 30, + VM_POPF: 31, + VM_MOVZX: 32, + VM_MOVSX: 33, + VM_XCHG: 34, + VM_MUL: 35, + VM_DIV: 36, + VM_ADC: 37, + VM_SBB: 38, + VM_PRINT: 39, + +/* +#ifdef VM_OPTIMIZE + VM_MOVB, VM_MOVD, VM_CMPB, VM_CMPD, + + VM_ADDB, VM_ADDD, VM_SUBB, VM_SUBD, VM_INCB, VM_INCD, VM_DECB, VM_DECD, + VM_NEGB, VM_NEGD, +#endif +*/ + + // TODO: This enum value would be much larger if VM_OPTIMIZE. + VM_STANDARD: 40, +}; + +/** + */ +const VM_StandardFilters = { + VMSF_NONE: 0, + VMSF_E8: 1, + VMSF_E8E9: 2, + VMSF_ITANIUM: 3, + VMSF_RGB: 4, + VMSF_AUDIO: 5, + VMSF_DELTA: 6, + VMSF_UPCASE: 7, +}; + +/** + */ +const VM_Flags = { + VM_FC: 1, + VM_FZ: 2, + VM_FS: 0x80000000, +}; + +/** + */ +const VM_OpType = { + VM_OPREG: 0, + VM_OPINT: 1, + VM_OPREGMEM: 2, + VM_OPNONE: 3, +}; + +/** + * Finds the key that maps to a given value in an object. This function is useful in debugging + * variables that use the above enums. + * @param {Object} obj + * @param {number} val + * @return {string} The key/enum value as a string. + */ +function findKeyForValue(obj, val) { + for (let key in obj) { + if (obj[key] === val) { + return key; + } + } + return null; +} + +function getDebugString(obj, val) { + let s = 'Unknown.'; + if (obj === VM_Commands) { + s = 'VM_Commands.'; + } else if (obj === VM_StandardFilters) { + s = 'VM_StandardFilters.'; + } else if (obj === VM_Flags) { + s = 'VM_OpType.'; + } else if (obj === VM_OpType) { + s = 'VM_OpType.'; + } + + return s + findKeyForValue(obj, val); +} + +/** + */ +class VM_PreparedOperand { + constructor() { + /** @type {VM_OpType} */ + this.Type; + + /** @type {number} */ + this.Data = 0; + + /** @type {number} */ + this.Base = 0; + + // TODO: In C++ this is a uint* + /** @type {Array} */ + this.Addr = null; + }; + + /** @return {string} */ + toString() { + if (this.Type === null) { + return 'Error: Type was null in VM_PreparedOperand'; + } + return '{ ' + + 'Type: ' + getDebugString(VM_OpType, this.Type) + + ', Data: ' + this.Data + + ', Base: ' + this.Base + + ' }'; + } +} + +/** + */ +class VM_PreparedCommand { + constructor() { + /** @type {VM_Commands} */ + this.OpCode; + + /** @type {boolean} */ + this.ByteMode = false; + + /** @type {VM_PreparedOperand} */ + this.Op1 = new VM_PreparedOperand(); + + /** @type {VM_PreparedOperand} */ + this.Op2 = new VM_PreparedOperand(); + } + + /** @return {string} */ + toString(indent) { + if (this.OpCode === null) { + return 'Error: OpCode was null in VM_PreparedCommand'; + } + indent = indent || ''; + return indent + '{\n' + + indent + ' OpCode: ' + getDebugString(VM_Commands, this.OpCode) + ',\n' + + indent + ' ByteMode: ' + this.ByteMode + ',\n' + + indent + ' Op1: ' + this.Op1.toString() + ',\n' + + indent + ' Op2: ' + this.Op2.toString() + ',\n' + + indent + '}'; + } +} + +/** + */ +class VM_PreparedProgram { + constructor() { + /** @type {Array} */ + this.Cmd = []; + + /** @type {Array} */ + this.AltCmd = null; + + /** @type {Uint8Array} */ + this.GlobalData = new Uint8Array(); + + /** @type {Uint8Array} */ + this.StaticData = new Uint8Array(); // static data contained in DB operators + + /** @type {Uint32Array} */ + this.InitR = new Uint32Array(7); + + /** + * A pointer to bytes that have been filtered by a program. + * @type {Uint8Array} + */ + this.FilteredData = null; + } + + /** @return {string} */ + toString() { + let s = '{\n Cmd: [\n'; + for (let i = 0; i < this.Cmd.length; ++i) { + s += this.Cmd[i].toString(' ') + ',\n'; + } + s += '],\n'; + // TODO: Dump GlobalData, StaticData, InitR? + s += ' }\n'; + return s; + } +} + +/** + */ +class UnpackFilter { + constructor() { + /** @type {number} */ + this.BlockStart = 0; + + /** @type {number} */ + this.BlockLength = 0; + + /** @type {number} */ + this.ExecCount = 0; + + /** @type {boolean} */ + this.NextWindow = false; + + // position of parent filter in Filters array used as prototype for filter + // in PrgStack array. Not defined for filters in Filters array. + /** @type {number} */ + this.ParentFilter = null; + + /** @type {VM_PreparedProgram} */ + this.Prg = new VM_PreparedProgram(); + } +} + +const VMCF_OP0 = 0; +const VMCF_OP1 = 1; +const VMCF_OP2 = 2; +const VMCF_OPMASK = 3; +const VMCF_BYTEMODE = 4; +const VMCF_JUMP = 8; +const VMCF_PROC = 16; +const VMCF_USEFLAGS = 32; +const VMCF_CHFLAGS = 64; + +const VM_CmdFlags = [ + /* VM_MOV */ VMCF_OP2 | VMCF_BYTEMODE , + /* VM_CMP */ VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_ADD */ VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_SUB */ VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_JZ */ VMCF_OP1 | VMCF_JUMP | VMCF_USEFLAGS , + /* VM_JNZ */ VMCF_OP1 | VMCF_JUMP | VMCF_USEFLAGS , + /* VM_INC */ VMCF_OP1 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_DEC */ VMCF_OP1 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_JMP */ VMCF_OP1 | VMCF_JUMP , + /* VM_XOR */ VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_AND */ VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_OR */ VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_TEST */ VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_JS */ VMCF_OP1 | VMCF_JUMP | VMCF_USEFLAGS , + /* VM_JNS */ VMCF_OP1 | VMCF_JUMP | VMCF_USEFLAGS , + /* VM_JB */ VMCF_OP1 | VMCF_JUMP | VMCF_USEFLAGS , + /* VM_JBE */ VMCF_OP1 | VMCF_JUMP | VMCF_USEFLAGS , + /* VM_JA */ VMCF_OP1 | VMCF_JUMP | VMCF_USEFLAGS , + /* VM_JAE */ VMCF_OP1 | VMCF_JUMP | VMCF_USEFLAGS , + /* VM_PUSH */ VMCF_OP1 , + /* VM_POP */ VMCF_OP1 , + /* VM_CALL */ VMCF_OP1 | VMCF_PROC , + /* VM_RET */ VMCF_OP0 | VMCF_PROC , + /* VM_NOT */ VMCF_OP1 | VMCF_BYTEMODE , + /* VM_SHL */ VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_SHR */ VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_SAR */ VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_NEG */ VMCF_OP1 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_PUSHA */ VMCF_OP0 , + /* VM_POPA */ VMCF_OP0 , + /* VM_PUSHF */ VMCF_OP0 | VMCF_USEFLAGS , + /* VM_POPF */ VMCF_OP0 | VMCF_CHFLAGS , + /* VM_MOVZX */ VMCF_OP2 , + /* VM_MOVSX */ VMCF_OP2 , + /* VM_XCHG */ VMCF_OP2 | VMCF_BYTEMODE , + /* VM_MUL */ VMCF_OP2 | VMCF_BYTEMODE , + /* VM_DIV */ VMCF_OP2 | VMCF_BYTEMODE , + /* VM_ADC */ VMCF_OP2 | VMCF_BYTEMODE | VMCF_USEFLAGS | VMCF_CHFLAGS , + /* VM_SBB */ VMCF_OP2 | VMCF_BYTEMODE | VMCF_USEFLAGS | VMCF_CHFLAGS , + /* VM_PRINT */ VMCF_OP0 , +]; + + +/** + */ +class StandardFilterSignature { + /** + * @param {number} length + * @param {number} crc + * @param {VM_StandardFilters} type + */ + constructor(length, crc, type) { + /** @type {number} */ + this.Length = length; + + /** @type {number} */ + this.CRC = crc; + + /** @type {VM_StandardFilters} */ + this.Type = type; + } +} + +/** + * @type {Array} + */ +const StdList = [ + new StandardFilterSignature(53, 0xad576887, VM_StandardFilters.VMSF_E8), + new StandardFilterSignature(57, 0x3cd7e57e, VM_StandardFilters.VMSF_E8E9), + new StandardFilterSignature(120, 0x3769893f, VM_StandardFilters.VMSF_ITANIUM), + new StandardFilterSignature(29, 0x0e06077d, VM_StandardFilters.VMSF_DELTA), + new StandardFilterSignature(149, 0x1c2c5dc8, VM_StandardFilters.VMSF_RGB), + new StandardFilterSignature(216, 0xbc85e701, VM_StandardFilters.VMSF_AUDIO), + new StandardFilterSignature(40, 0x46b9c560, VM_StandardFilters.VMSF_UPCASE), +]; + +/** + * @constructor + */ +class RarVM { + constructor() { + /** @private {Uint8Array} */ + this.mem_ = null; + + /** @private {Uint32Array} */ + this.R_ = new Uint32Array(8); + + /** @private {number} */ + this.flags_ = 0; + } + + /** + * Initializes the memory of the VM. + */ + init() { + if (!this.mem_) { + this.mem_ = new Uint8Array(VM_MEMSIZE); + } + } + + /** + * @param {Uint8Array} code + * @return {VM_StandardFilters} + */ + isStandardFilter(code) { + const codeCRC = (CRC(0xffffffff, code, code.length) ^ 0xffffffff) >>> 0; + for (let i = 0; i < StdList.length; ++i) { + if (StdList[i].CRC == codeCRC && StdList[i].Length == code.length) + return StdList[i].Type; + } + + return VM_StandardFilters.VMSF_NONE; + } + + /** + * @param {VM_PreparedOperand} op + * @param {boolean} byteMode + * @param {bitjs.io.BitStream} bstream A rtl bit stream. + */ + decodeArg(op, byteMode, bstream) { + const data = bstream.peekBits(16); + if (data & 0x8000) { + op.Type = VM_OpType.VM_OPREG; // Operand is register (R[0]..R[7]) + bstream.readBits(1); // 1 flag bit and... + op.Data = bstream.readBits(3); // ... 3 register number bits + op.Addr = [this.R_[op.Data]] // TODO &R[Op.Data] // Register address + } else { + if ((data & 0xc000) == 0) { + op.Type = VM_OpType.VM_OPINT; // Operand is integer + bstream.readBits(2); // 2 flag bits + if (byteMode) { + op.Data = bstream.readBits(8); // Byte integer. + } else { + op.Data = RarVM.readData(bstream); // 32 bit integer. + } + } else { + // Operand is data addressed by register data, base address or both. + op.Type = VM_OpType.VM_OPREGMEM; + if ((data & 0x2000) == 0) { + bstream.readBits(3); // 3 flag bits + // Base address is zero, just use the address from register. + op.Data = bstream.readBits(3); // (Data>>10)&7 + op.Addr = [this.R_[op.Data]]; // TODO &R[op.Data] + op.Base = 0; + } else { + bstream.readBits(4); // 4 flag bits + if ((data & 0x1000) == 0) { + // Use both register and base address. + op.Data = bstream.readBits(3); + op.Addr = [this.R_[op.Data]]; // TODO &R[op.Data] + } else { + // Use base address only. Access memory by fixed address. + op.Data = 0; + } + op.Base = RarVM.readData(bstream); // Read base address. + } + } + } + } + + /** + * @param {VM_PreparedProgram} prg + */ + execute(prg) { + this.R_.set(prg.InitR); + + const globalSize = Math.min(prg.GlobalData.length, VM_GLOBALMEMSIZE); + if (globalSize) { + this.mem_.set(prg.GlobalData.subarray(0, globalSize), VM_GLOBALMEMADDR); + } + + const staticSize = Math.min(prg.StaticData.length, VM_GLOBALMEMSIZE - globalSize); + if (staticSize) { + this.mem_.set(prg.StaticData.subarray(0, staticSize), VM_GLOBALMEMADDR + globalSize); + } + + this.R_[7] = VM_MEMSIZE; + this.flags_ = 0; + + const preparedCodes = prg.AltCmd ? prg.AltCmd : prg.Cmd; + if (prg.Cmd.length > 0 && !this.executeCode(preparedCodes)) { + // Invalid VM program. Let's replace it with 'return' command. + preparedCode.OpCode = VM_Commands.VM_RET; + } + + const dataView = new DataView(this.mem_.buffer, VM_GLOBALMEMADDR); + let newBlockPos = dataView.getUint32(0x20, true /* little endian */) & VM_MEMMASK; + const newBlockSize = dataView.getUint32(0x1c, true /* little endian */) & VM_MEMMASK; + if (newBlockPos + newBlockSize >= VM_MEMSIZE) { + newBlockPos = newBlockSize = 0; + } + prg.FilteredData = this.mem_.subarray(newBlockPos, newBlockPos + newBlockSize); + + prg.GlobalData = new Uint8Array(0); + + const dataSize = Math.min(dataView.getUint32(0x30), (VM_GLOBALMEMSIZE - VM_FIXEDGLOBALSIZE)); + if (dataSize != 0) { + const len = dataSize + VM_FIXEDGLOBALSIZE; + prg.GlobalData = new Uint8Array(len); + prg.GlobalData.set(mem.subarray(VM_GLOBALMEMADDR, VM_GLOBALMEMADDR + len)); + } + } + + /** + * @param {Array} preparedCodes + * @return {boolean} + */ + executeCode(preparedCodes) { + let codeIndex = 0; + let cmd = preparedCodes[codeIndex]; + // TODO: Why is this an infinite loop instead of just returning + // when a VM_RET is hit? + while (1) { + switch (cmd.OpCode) { + case VM_Commands.VM_RET: + if (this.R_[7] >= VM_MEMSIZE) { + return true; + } + //SET_IP(GET_VALUE(false,(uint *)&Mem[R[7] & VM_MEMMASK])); + this.R_[7] += 4; + continue; + + case VM_Commands.VM_STANDARD: + this.executeStandardFilter(cmd.Op1.Data); + break; + + default: + console.error('RarVM OpCode not supported: ' + getDebugString(VM_Commands, cmd.OpCode)); + break; + } // switch (cmd.OpCode) + codeIndex++; + cmd = preparedCodes[codeIndex]; + } + } + + /** + * @param {number} filterType + */ + executeStandardFilter(filterType) { + switch (filterType) { + case VM_StandardFilters.VMSF_RGB: { + const dataSize = this.R_[4]; + const width = this.R_[0] - 3; + const posR = this.R_[1]; + const Channels = 3; + let srcOffset = 0; + let destOffset = dataSize; + + // byte *SrcData=Mem,*DestData=SrcData+DataSize; + // SET_VALUE(false,&Mem[VM_GLOBALMEMADDR+0x20],DataSize); + const dataView = new DataView(this.mem_.buffer, VM_GLOBALMEMADDR /* offset */); + dataView.setUint32(0x20 /* byte offset */, + dataSize /* value */, + true /* little endian */); + + if (dataSize >= (VM_GLOBALMEMADDR / 2) || posR < 0) { + break; + } + + for (let curChannel = 0; curChannel < Channels; ++curChannel) { + let prevByte=0; + + for (let i = curChannel; i < dataSize; i += Channels) { + let predicted; + const upperPos = i - width; + if (upperPos >= 3) { + const upperByte = this.mem_[destOffset + upperPos]; + const upperLeftByte = this.mem_[destOffset + upperPos - 3]; + predicted = prevByte + upperByte - upperLeftByte; + + const pa = Math.abs(predicted - prevByte); + const pb = Math.abs(predicted - upperByte); + const pc = Math.abs(predicted - upperLeftByte); + if (pa <= pb && pa <= pc) { + predicted = prevByte; + } else if (pb <= pc) { + predicted = upperByte; + } else { + predicted = upperLeftByte; + } + } else { + predicted = prevByte; + } + //DestData[I]=PrevByte=(byte)(Predicted-*(SrcData++)); + prevByte = (predicted - this.mem_[srcOffset++]) & 0xff; + this.mem_[destOffset + i] = prevByte; + } + } + for (let i = posR, border = dataSize - 2; i < border; i += 3) { + const g = this.mem_[destOffset + i + 1]; + this.mem_[destOffset + i] += g; + this.mem_[destOffset + i + 2] += g; + } + + break; + } + + // The C++ version of this standard filter uses an odd mixture of + // signed and unsigned integers, bytes and various casts. Careful! + case VM_StandardFilters.VMSF_AUDIO: { + const dataSize = this.R_[4]; + const channels = this.R_[0]; + let srcOffset = 0; + let destOffset = dataSize; + + //SET_VALUE(false,&Mem[VM_GLOBALMEMADDR+0x20],DataSize); + const dataView = new DataView(this.mem_.buffer, VM_GLOBALMEMADDR); + dataView.setUint32(0x20 /* byte offset */, + dataSize /* value */, + true /* little endian */); + + if (dataSize >= VM_GLOBALMEMADDR / 2) { + break; + } + + for (let curChannel = 0; curChannel < channels; ++curChannel) { + let prevByte = 0; // uint + let prevDelta = 0; // uint + let dif = [0, 0, 0, 0, 0, 0, 0]; + let d1 = 0, d2 = 0, d3; // ints + let k1 = 0, k2 = 0, k3 = 0; // ints + + for (var i = curChannel, byteCount = 0; + i < dataSize; + i += channels, ++byteCount) { + d3 = d2; + d2 = fromUnsigned32ToSigned32(prevDelta - d1); + d1 = fromUnsigned32ToSigned32(prevDelta); + + let predicted = fromSigned32ToUnsigned32(8*prevByte + k1*d1 + k2*d2 + k3*d3); // uint + predicted = (predicted >>> 3) & 0xff; + + let curByte = this.mem_[srcOffset++]; // uint + + // Predicted-=CurByte; + predicted = fromSigned32ToUnsigned32(predicted - curByte); + this.mem_[destOffset + i] = (predicted & 0xff); + + // PrevDelta=(signed char)(Predicted-PrevByte); + // where Predicted, PrevByte, PrevDelta are all unsigned int (32) + // casting this subtraction to a (signed char) is kind of invalid + // but it does the following: + // - do the subtraction + // - get the bottom 8 bits of the result + // - if it was >= 0x80, then the value is negative (subtract 0x100) + // - if the value is now negative, add 0x100000000 to make unsigned + // + // Example: + // predicted = 101 + // prevByte = 4294967158 + // (predicted - prevByte) = -4294967057 + // take lower 8 bits: 1110 1111 = 239 + // since > 127, subtract 256 = -17 + // since < 0, add 0x100000000 = 4294967279 + prevDelta = fromSigned32ToUnsigned32( + fromUnsigned8ToSigned8((predicted - prevByte) & 0xff)); + prevByte = predicted; + + // int D=((signed char)CurByte)<<3; + let curByteAsSignedChar = fromUnsigned8ToSigned8(curByte); // signed char + let d = (curByteAsSignedChar << 3); + + dif[0] += Math.abs(d); + dif[1] += Math.abs(d-d1); + dif[2] += Math.abs(d+d1); + dif[3] += Math.abs(d-d2); + dif[4] += Math.abs(d+d2); + dif[5] += Math.abs(d-d3); + dif[6] += Math.abs(d+d3); + + if ((byteCount & 0x1f) == 0) { + let minDif = dif[0], numMinDif = 0; + dif[0] = 0; + for (let j = 1; j < 7; ++j) { + if (dif[j] < minDif) { + minDif = dif[j]; + numMinDif = j; + } + dif[j] = 0; + } + switch (numMinDif) { + case 1: if (k1>=-16) k1--; break; + case 2: if (k1 < 16) k1++; break; + case 3: if (k2>=-16) k2--; break; + case 4: if (k2 < 16) k2++; break; + case 5: if (k3>=-16) k3--; break; + case 6: if (k3 < 16) k3++; break; + } + } + } + } + + break; + } + + case VM_StandardFilters.VMSF_DELTA: { + const dataSize = this.R_[4]; + const channels = this.R_[0]; + let srcPos = 0; + const border = dataSize * 2; + + //SET_VALUE(false,&Mem[VM_GLOBALMEMADDR+0x20],DataSize); + const dataView = new DataView(this.mem_.buffer, VM_GLOBALMEMADDR); + dataView.setUint32(0x20 /* byte offset */, + dataSize /* value */, + true /* little endian */); + + if (dataSize >= VM_GLOBALMEMADDR / 2) { + break; + } + + // Bytes from same channels are grouped to continual data blocks, + // so we need to place them back to their interleaving positions. + for (let curChannel = 0; curChannel < channels; ++curChannel) { + let prevByte = 0; + for (let destPos = dataSize + curChannel; destPos < border; destPos += channels) { + prevByte = (prevByte - this.mem_[srcPos++]) & 0xff; + this.mem_[destPos] = prevByte; + } + } + + break; + } + + default: + console.error('RarVM Standard Filter not supported: ' + getDebugString(VM_StandardFilters, filterType)); + break; + } + } + + /** + * @param {Uint8Array} code + * @param {VM_PreparedProgram} prg + */ + prepare(code, prg) { + let codeSize = code.length; + + //InitBitInput(); + //memcpy(InBuf,Code,Min(CodeSize,BitInput::MAX_SIZE)); + const bstream = new bitjs.io.BitStream(code.buffer, true /* rtl */); + + // Calculate the single byte XOR checksum to check validity of VM code. + let xorSum = 0; + for (let i = 1; i < codeSize; ++i) { + xorSum ^= code[i]; + } + + bstream.readBits(8); + + prg.Cmd = []; // TODO: Is this right? I don't see it being done in rarvm.cpp. + + // VM code is valid if equal. + if (xorSum == code[0]) { + const filterType = this.isStandardFilter(code); + if (filterType != VM_StandardFilters.VMSF_NONE) { + // VM code is found among standard filters. + const curCmd = new VM_PreparedCommand(); + prg.Cmd.push(curCmd); + + curCmd.OpCode = VM_Commands.VM_STANDARD; + curCmd.Op1.Data = filterType; + // TODO: Addr=&CurCmd->Op1.Data + curCmd.Op1.Addr = [curCmd.Op1.Data]; + curCmd.Op2.Addr = [null]; // &CurCmd->Op2.Data; + curCmd.Op1.Type = VM_OpType.VM_OPNONE; + curCmd.Op2.Type = VM_OpType.VM_OPNONE; + codeSize = 0; + } + + const dataFlag = bstream.readBits(1); + + // Read static data contained in DB operators. This data cannot be + // changed, it is a part of VM code, not a filter parameter. + + if (dataFlag & 0x8000) { + const dataSize = RarVM.readData(bstream) + 1; + // TODO: This accesses the byte pointer of the bstream directly. Is that ok? + for (let i = 0; i < bstream.bytePtr < codeSize && i < dataSize; ++i) { + // Append a byte to the program's static data. + const newStaticData = new Uint8Array(prg.StaticData.length + 1); + newStaticData.set(prg.StaticData); + newStaticData[newStaticData.length - 1] = bstream.readBits(8); + prg.StaticData = newStaticData; + } + } + + while (bstream.bytePtr < codeSize) { + const curCmd = new VM_PreparedCommand(); + prg.Cmd.push(curCmd); // Prg->Cmd.Add(1) + const flag = bstream.peekBits(1); + if (!flag) { // (Data&0x8000)==0 + curCmd.OpCode = bstream.readBits(4); + } else { + curCmd.OpCode = (bstream.readBits(6) - 24); + } + + if (VM_CmdFlags[curCmd.OpCode] & VMCF_BYTEMODE) { + curCmd.ByteMode = (bstream.readBits(1) != 0); + } else { + curCmd.ByteMode = 0; + } + curCmd.Op1.Type = VM_OpType.VM_OPNONE; + curCmd.Op2.Type = VM_OpType.VM_OPNONE; + const opNum = (VM_CmdFlags[curCmd.OpCode] & VMCF_OPMASK); + curCmd.Op1.Addr = null; + curCmd.Op2.Addr = null; + if (opNum > 0) { + this.decodeArg(curCmd.Op1, curCmd.ByteMode, bstream); // reading the first operand + if (opNum == 2) { + this.decodeArg(curCmd.Op2, curCmd.ByteMode, bstream); // reading the second operand + } else { + if (curCmd.Op1.Type == VM_OpType.VM_OPINT && (VM_CmdFlags[curCmd.OpCode] & (VMCF_JUMP|VMCF_PROC))) { + // Calculating jump distance. + let distance = curCmd.Op1.Data; + if (distance >= 256) { + distance -= 256; + } else { + if (distance >= 136) { + distance -= 264; + } else { + if (distance >= 16) { + distance -= 8; + } else { + if (distance >= 8) { + distance -= 16; + } + } + } + distance += prg.Cmd.length; + } + curCmd.Op1.Data = distance; + } + } + } // if (OpNum>0) + } // while ((uint)InAddrOp1.Data + curCmd.Op1.Addr = [curCmd.Op1.Data]; + curCmd.Op2.Addr = [curCmd.Op2.Data]; + curCmd.Op1.Type = VM_OpType.VM_OPNONE; + curCmd.Op2.Type = VM_OpType.VM_OPNONE; + + // If operand 'Addr' field has not been set by DecodeArg calls above, + // let's set it to point to operand 'Data' field. It is necessary for + // VM_OPINT type operands (usual integers) or maybe if something was + // not set properly for other operands. 'Addr' field is required + // for quicker addressing of operand data. + for (let i = 0; i < prg.Cmd.length; ++i) { + const cmd = prg.Cmd[i]; + if (cmd.Op1.Addr == null) { + cmd.Op1.Addr = [cmd.Op1.Data]; + } + if (cmd.Op2.Addr == null) { + cmd.Op2.Addr = [cmd.Op2.Data]; + } + } + + /* + #ifdef VM_OPTIMIZE + if (CodeSize!=0) + Optimize(Prg); + #endif + */ + } + + /** + * @param {Uint8Array} arr The byte array to set a value in. + * @param {number} value The unsigned 32-bit value to set. + * @param {number} offset Offset into arr to start setting the value, defaults to 0. + */ + setLowEndianValue(arr, value, offset) { + const i = offset || 0; + arr[i] = value & 0xff; + arr[i + 1] = (value >>> 8) & 0xff; + arr[i + 2] = (value >>> 16) & 0xff; + arr[i + 3] = (value >>> 24) & 0xff; + } + + /** + * Sets a number of bytes of the VM memory at the given position from a + * source buffer of bytes. + * @param {number} pos The position in the VM memory to start writing to. + * @param {Uint8Array} buffer The source buffer of bytes. + * @param {number} dataSize The number of bytes to set. + */ + setMemory(pos, buffer, dataSize) { + if (pos < VM_MEMSIZE) { + const numBytes = Math.min(dataSize, VM_MEMSIZE - pos); + for (let i = 0; i < numBytes; ++i) { + this.mem_[pos + i] = buffer[i]; + } + } + } + + /** + * Static function that reads in the next set of bits for the VM + * (might return 4, 8, 16 or 32 bits). + * @param {bitjs.io.BitStream} bstream A RTL bit stream. + * @return {number} The value of the bits read. + */ + static readData(bstream) { + // Read in the first 2 bits. + const flags = bstream.readBits(2); + switch (flags) { // Data&0xc000 + // Return the next 4 bits. + case 0: + return bstream.readBits(4); // (Data>>10)&0xf + + case 1: // 0x4000 + // 0x3c00 => 0011 1100 0000 0000 + if (bstream.peekBits(4) == 0) { // (Data&0x3c00)==0 + // Skip the 4 zero bits. + bstream.readBits(4); + // Read in the next 8 and pad with 1s to 32 bits. + return (0xffffff00 | bstream.readBits(8)) >>> 0; // ((Data>>2)&0xff) + } + + // Else, read in the next 8. + return bstream.readBits(8); + + // Read in the next 16. + case 2: // 0x8000 + const val = bstream.getBits(); + bstream.readBits(16); + return val; //bstream.readBits(16); + + // case 3 + default: + return (bstream.readBits(16) << 16) | bstream.readBits(16); + } + } +} + +// ============================================================================================== // diff --git a/vendor/bitjs/archive/unrar.js b/vendor/bitjs/archive/unrar.js new file mode 100644 index 0000000..a2e4c7c --- /dev/null +++ b/vendor/bitjs/archive/unrar.js @@ -0,0 +1,3065 @@ +/** + * unrar.js + * + * Licensed under the MIT License + * + * Copyright(c) 2011 Google Inc. + * Copyright(c) 2011 antimatter15 + */ + +// This file expects to be invoked as a Worker (see onmessage below). +//importScripts('../io/bitstream.js'); + +/* + * bitstream.js + * + * Provides readers for bitstreams. + * + * Licensed under the MIT License + * + * Copyright(c) 2011 Google Inc. + * Copyright(c) 2011 antimatter15 + */ + +var bitjs = bitjs || {}; +bitjs.io = bitjs.io || {}; + + +/** + * This bit stream peeks and consumes bits out of a binary stream. + */ +bitjs.io.BitStream = class { + /** + * @param {ArrayBuffer} ab An ArrayBuffer object or a Uint8Array. + * @param {boolean} rtl Whether the stream reads bits from the byte starting + * from bit 7 to 0 (true) or bit 0 to 7 (false). + * @param {Number} opt_offset The offset into the ArrayBuffer + * @param {Number} opt_length The length of this BitStream + */ + constructor(ab, rtl, opt_offset, opt_length) { + if (!ab || !ab.toString || ab.toString() !== "[object ArrayBuffer]") { + throw "Error! BitArray constructed with an invalid ArrayBuffer object"; + } + + const offset = opt_offset || 0; + const length = opt_length || ab.byteLength; + this.bytes = new Uint8Array(ab, offset, length); + this.bytePtr = 0; // tracks which byte we are on + this.bitPtr = 0; // tracks which bit we are on (can have values 0 through 7) + this.peekBits = rtl ? this.peekBits_rtl : this.peekBits_ltr; + } + + /** + * byte0 byte1 byte2 byte3 + * 7......0 | 7......0 | 7......0 | 7......0 + * + * The bit pointer starts at bit0 of byte0 and moves left until it reaches + * bit7 of byte0, then jumps to bit0 of byte1, etc. + * @param {number} n The number of bits to peek. + * @param {boolean=} movePointers Whether to move the pointer, defaults false. + * @return {number} The peeked bits, as an unsigned number. + */ + peekBits_ltr(n, opt_movePointers) { + if (n <= 0 || typeof n != typeof 1) { + return 0; + } + + const movePointers = opt_movePointers || false; + const bytes = this.bytes; + let bytePtr = this.bytePtr; + let bitPtr = this.bitPtr; + let result = 0; + let bitsIn = 0; + + // keep going until we have no more bits left to peek at + // TODO: Consider putting all bits from bytes we will need into a variable and then + // shifting/masking it to just extract the bits we want. + // This could be considerably faster when reading more than 3 or 4 bits at a time. + while (n > 0) { + if (bytePtr >= bytes.length) { + throw "Error! Overflowed the bit stream! n=" + n + ", bytePtr=" + bytePtr + ", bytes.length=" + + bytes.length + ", bitPtr=" + bitPtr; + return -1; + } + + const numBitsLeftInThisByte = (8 - bitPtr); + if (n >= numBitsLeftInThisByte) { + const mask = (bitjs.io.BitStream.BITMASK[numBitsLeftInThisByte] << bitPtr); + result |= (((bytes[bytePtr] & mask) >> bitPtr) << bitsIn); + + bytePtr++; + bitPtr = 0; + bitsIn += numBitsLeftInThisByte; + n -= numBitsLeftInThisByte; + } + else { + const mask = (bitjs.io.BitStream.BITMASK[n] << bitPtr); + result |= (((bytes[bytePtr] & mask) >> bitPtr) << bitsIn); + + bitPtr += n; + bitsIn += n; + n = 0; + } + } + + if (movePointers) { + this.bitPtr = bitPtr; + this.bytePtr = bytePtr; + } + + return result; + } + + /** + * byte0 byte1 byte2 byte3 + * 7......0 | 7......0 | 7......0 | 7......0 + * + * The bit pointer starts at bit7 of byte0 and moves right until it reaches + * bit0 of byte0, then goes to bit7 of byte1, etc. + * @param {number} n The number of bits to peek. + * @param {boolean=} movePointers Whether to move the pointer, defaults false. + * @return {number} The peeked bits, as an unsigned number. + */ + peekBits_rtl(n, opt_movePointers) { + if (n <= 0 || typeof n != typeof 1) { + return 0; + } + + const movePointers = opt_movePointers || false; + const bytes = this.bytes; + let bytePtr = this.bytePtr; + let bitPtr = this.bitPtr; + let result = 0; + + // keep going until we have no more bits left to peek at + // TODO: Consider putting all bits from bytes we will need into a variable and then + // shifting/masking it to just extract the bits we want. + // This could be considerably faster when reading more than 3 or 4 bits at a time. + while (n > 0) { + if (bytePtr >= bytes.length) { + throw "Error! Overflowed the bit stream! n=" + n + ", bytePtr=" + bytePtr + ", bytes.length=" + + bytes.length + ", bitPtr=" + bitPtr; + return -1; + } + + const numBitsLeftInThisByte = (8 - bitPtr); + if (n >= numBitsLeftInThisByte) { + result <<= numBitsLeftInThisByte; + result |= (bitjs.io.BitStream.BITMASK[numBitsLeftInThisByte] & bytes[bytePtr]); + bytePtr++; + bitPtr = 0; + n -= numBitsLeftInThisByte; + } + else { + result <<= n; + result |= ((bytes[bytePtr] & (bitjs.io.BitStream.BITMASK[n] << (8 - n - bitPtr))) >> (8 - n - bitPtr)); + + bitPtr += n; + n = 0; + } + } + + if (movePointers) { + this.bitPtr = bitPtr; + this.bytePtr = bytePtr; + } + + return result; + } + + /** + * Peek at 16 bits from current position in the buffer. + * Bit at (bytePtr,bitPtr) has the highest position in returning data. + * Taken from getbits.hpp in unrar. + * TODO: Move this out of BitStream and into unrar. + */ + getBits() { + return (((((this.bytes[this.bytePtr] & 0xff) << 16) + + ((this.bytes[this.bytePtr+1] & 0xff) << 8) + + ((this.bytes[this.bytePtr+2] & 0xff))) >>> (8-this.bitPtr)) & 0xffff); + } + + /** + * Reads n bits out of the stream, consuming them (moving the bit pointer). + * @param {number} n The number of bits to read. + * @return {number} The read bits, as an unsigned number. + */ + readBits(n) { + return this.peekBits(n, true); + } + + /** + * This returns n bytes as a sub-array, advancing the pointer if movePointers + * is true. Only use this for uncompressed blocks as this throws away remaining + * bits in the current byte. + * @param {number} n The number of bytes to peek. + * @param {boolean=} movePointers Whether to move the pointer, defaults false. + * @return {Uint8Array} The subarray. + */ + peekBytes(n, opt_movePointers) { + if (n <= 0 || typeof n != typeof 1) { + return 0; + } + + // from http://tools.ietf.org/html/rfc1951#page-11 + // "Any bits of input up to the next byte boundary are ignored." + while (this.bitPtr != 0) { + this.readBits(1); + } + + const movePointers = opt_movePointers || false; + let bytePtr = this.bytePtr; + let bitPtr = this.bitPtr; + + const result = this.bytes.subarray(bytePtr, bytePtr + n); + + if (movePointers) { + this.bytePtr += n; + } + + return result; + } + + /** + * @param {number} n The number of bytes to read. + * @return {Uint8Array} The subarray. + */ + readBytes(n) { + return this.peekBytes(n, true); + } +} + +// mask for getting N number of bits (0-8) +bitjs.io.BitStream.BITMASK = [0, 0x01, 0x03, 0x07, 0x0F, 0x1F, 0x3F, 0x7F, 0xFF ]; + + +//importScripts('../io/bytebuffer.js'); + +/* + * bytestream.js + * + * Provides a writer for bytes. + * + * Licensed under the MIT License + * + * Copyright(c) 2011 Google Inc. + * Copyright(c) 2011 antimatter15 + */ + +var bitjs = bitjs || {}; +bitjs.io = bitjs.io || {}; + + +/** + * A write-only Byte buffer which uses a Uint8 Typed Array as a backing store. + */ +bitjs.io.ByteBuffer = class { + /** + * @param {number} numBytes The number of bytes to allocate. + */ + constructor(numBytes) { + if (typeof numBytes != typeof 1 || numBytes <= 0) { + throw "Error! ByteBuffer initialized with '" + numBytes + "'"; + } + this.data = new Uint8Array(numBytes); + this.ptr = 0; + } + + + /** + * @param {number} b The byte to insert. + */ + insertByte(b) { + // TODO: throw if byte is invalid? + this.data[this.ptr++] = b; + } + + /** + * @param {Array.|Uint8Array|Int8Array} bytes The bytes to insert. + */ + insertBytes(bytes) { + // TODO: throw if bytes is invalid? + this.data.set(bytes, this.ptr); + this.ptr += bytes.length; + } + + /** + * Writes an unsigned number into the next n bytes. If the number is too large + * to fit into n bytes or is negative, an error is thrown. + * @param {number} num The unsigned number to write. + * @param {number} numBytes The number of bytes to write the number into. + */ + writeNumber(num, numBytes) { + if (numBytes < 1) { + throw 'Trying to write into too few bytes: ' + numBytes; + } + if (num < 0) { + throw 'Trying to write a negative number (' + num + + ') as an unsigned number to an ArrayBuffer'; + } + if (num > (Math.pow(2, numBytes * 8) - 1)) { + throw 'Trying to write ' + num + ' into only ' + numBytes + ' bytes'; + } + + // Roll 8-bits at a time into an array of bytes. + const bytes = []; + while (numBytes-- > 0) { + const eightBits = num & 255; + bytes.push(eightBits); + num >>= 8; + } + + this.insertBytes(bytes); + } + + /** + * Writes a signed number into the next n bytes. If the number is too large + * to fit into n bytes, an error is thrown. + * @param {number} num The signed number to write. + * @param {number} numBytes The number of bytes to write the number into. + */ + writeSignedNumber(num, numBytes) { + if (numBytes < 1) { + throw 'Trying to write into too few bytes: ' + numBytes; + } + + const HALF = Math.pow(2, (numBytes * 8) - 1); + if (num >= HALF || num < -HALF) { + throw 'Trying to write ' + num + ' into only ' + numBytes + ' bytes'; + } + + // Roll 8-bits at a time into an array of bytes. + const bytes = []; + while (numBytes-- > 0) { + const eightBits = num & 255; + bytes.push(eightBits); + num >>= 8; + } + + this.insertBytes(bytes); + } + + /** + * @param {string} str The ASCII string to write. + */ + writeASCIIString(str) { + for (let i = 0; i < str.length; ++i) { + const curByte = str.charCodeAt(i); + if (curByte < 0 || curByte > 255) { + throw 'Trying to write a non-ASCII string!'; + } + this.insertByte(curByte); + } + }; +} + +//importScripts('archive.js'); + +/** + * archive.js + * + * Provides base functionality for unarchiving. + * + * Licensed under the MIT License + * + * Copyright(c) 2011 Google Inc. + */ + +var bitjs = bitjs || {}; +bitjs.archive = bitjs.archive || {}; + +/** + * An unarchive event. + */ +bitjs.archive.UnarchiveEvent = class { + /** + * @param {string} type The event type. + */ + constructor(type) { + /** + * The event type. + * @type {string} + */ + this.type = type; + } +} + +/** + * The UnarchiveEvent types. + */ +bitjs.archive.UnarchiveEvent.Type = { + START: 'start', + PROGRESS: 'progress', + EXTRACT: 'extract', + FINISH: 'finish', + INFO: 'info', + ERROR: 'error' +}; + +/** + * Useful for passing info up to the client (for debugging). + */ +bitjs.archive.UnarchiveInfoEvent = class extends bitjs.archive.UnarchiveEvent { + /** + * @param {string} msg The info message. + */ + constructor(msg) { + super(bitjs.archive.UnarchiveEvent.Type.INFO); + + /** + * The information message. + * @type {string} + */ + this.msg = msg; + } +} + +/** + * An unrecoverable error has occured. + */ +bitjs.archive.UnarchiveErrorEvent = class extends bitjs.archive.UnarchiveEvent { + /** + * @param {string} msg The error message. + */ + constructor(msg) { + super(bitjs.archive.UnarchiveEvent.Type.ERROR); + + /** + * The information message. + * @type {string} + */ + this.msg = msg; + } +} + +/** + * Start event. + */ +bitjs.archive.UnarchiveStartEvent = class extends bitjs.archive.UnarchiveEvent { + constructor() { + super(bitjs.archive.UnarchiveEvent.Type.START); + } +} + +/** + * Finish event. + */ +bitjs.archive.UnarchiveFinishEvent = class extends bitjs.archive.UnarchiveEvent { + constructor() { + super(bitjs.archive.UnarchiveEvent.Type.FINISH); + } +} + +/** + * Progress event. + */ +bitjs.archive.UnarchiveProgressEvent = class extends bitjs.archive.UnarchiveEvent { + /** + * @param {string} currentFilename + * @param {number} currentFileNumber + * @param {number} currentBytesUnarchivedInFile + * @param {number} currentBytesUnarchived + * @param {number} totalUncompressedBytesInArchive + * @param {number} totalFilesInArchive + */ + constructor(currentFilename, currentFileNumber, currentBytesUnarchivedInFile, + currentBytesUnarchived, totalUncompressedBytesInArchive, totalFilesInArchive) { + super(bitjs.archive.UnarchiveEvent.Type.PROGRESS); + + this.currentFilename = currentFilename; + this.currentFileNumber = currentFileNumber; + this.currentBytesUnarchivedInFile = currentBytesUnarchivedInFile; + this.totalFilesInArchive = totalFilesInArchive; + this.currentBytesUnarchived = currentBytesUnarchived; + this.totalUncompressedBytesInArchive = totalUncompressedBytesInArchive; + } +} + +/** + * Extract event. + */ +bitjs.archive.UnarchiveExtractEvent = class extends bitjs.archive.UnarchiveEvent { + /** + * @param {UnarchivedFile} unarchivedFile + */ + constructor(unarchivedFile) { + super(bitjs.archive.UnarchiveEvent.Type.EXTRACT); + + /** + * @type {UnarchivedFile} + */ + this.unarchivedFile = unarchivedFile; + } +} + +/** + * All extracted files returned by an Unarchiver will implement + * the following interface: + * + * interface UnarchivedFile { + * string filename + * TypedArray fileData + * } + * + */ + +/** + * Base class for all Unarchivers. + */ +bitjs.archive.Unarchiver = class { + /** + * @param {ArrayBuffer} arrayBuffer The Array Buffer. + * @param {string} opt_pathToBitJS Optional string for where the BitJS files are located. + */ + constructor(arrayBuffer, opt_pathToBitJS) { + /** + * The ArrayBuffer object. + * @type {ArrayBuffer} + * @protected + */ + this.ab = arrayBuffer; + + /** + * The path to the BitJS files. + * @type {string} + * @private + */ + this.pathToBitJS_ = opt_pathToBitJS || '/'; + + /** + * A map from event type to an array of listeners. + * @type {Map.} + */ + this.listeners_ = {}; + for (let type in bitjs.archive.UnarchiveEvent.Type) { + this.listeners_[bitjs.archive.UnarchiveEvent.Type[type]] = []; + } + + /** + * Private web worker initialized during start(). + * @type {Worker} + * @private + */ + this.worker_ = null; + } + + /** + * This method must be overridden by the subclass to return the script filename. + * @return {string} The script filename. + * @protected. + */ + getScriptFileName() { + throw 'Subclasses of AbstractUnarchiver must overload getScriptFileName()'; + } + + /** + * Adds an event listener for UnarchiveEvents. + * + * @param {string} Event type. + * @param {function} An event handler function. + */ + addEventListener(type, listener) { + if (type in this.listeners_) { + if (this.listeners_[type].indexOf(listener) == -1) { + this.listeners_[type].push(listener); + } + } + } + + /** + * Removes an event listener. + * + * @param {string} Event type. + * @param {EventListener|function} An event listener or handler function. + */ + removeEventListener(type, listener) { + if (type in this.listeners_) { + const index = this.listeners_[type].indexOf(listener); + if (index != -1) { + this.listeners_[type].splice(index, 1); + } + } + } + + /** + * Receive an event and pass it to the listener functions. + * + * @param {bitjs.archive.UnarchiveEvent} e + * @private + */ + handleWorkerEvent_(e) { + if ((e instanceof bitjs.archive.UnarchiveEvent || e.type) && + this.listeners_[e.type] instanceof Array) { + this.listeners_[e.type].forEach(function (listener) { listener(e) }); + if (e.type == bitjs.archive.UnarchiveEvent.Type.FINISH) { + this.worker_.terminate(); + } + } else { + console.log(e); + } + } + + /** + * Starts the unarchive in a separate Web Worker thread and returns immediately. + */ + start() { + const me = this; + const scriptFileName = this.pathToBitJS_ + this.getScriptFileName(); + if (scriptFileName) { + this.worker_ = new Worker(scriptFileName); + + this.worker_.onerror = function(e) { + console.log('Worker error: message = ' + e.message); + throw e; + }; + + this.worker_.onmessage = function(e) { + if (typeof e.data == 'string') { + // Just log any strings the workers pump our way. + console.log(e.data); + } else { + // Assume that it is an UnarchiveEvent. Some browsers preserve the 'type' + // so that instanceof UnarchiveEvent returns true, but others do not. + me.handleWorkerEvent_(e.data); + } + }; + + this.worker_.postMessage({file: this.ab}); + } + } + + /** + * Terminates the Web Worker for this Unarchiver and returns immediately. + */ + stop() { + if (this.worker_) { + this.worker_.terminate(); + } + } +} + + +/** + * Unzipper + */ +bitjs.archive.Unzipper = class extends bitjs.archive.Unarchiver { + constructor(arrayBuffer, opt_pathToBitJS) { + super(arrayBuffer, opt_pathToBitJS); + } + + getScriptFileName() { return 'archive/unzip.js'; } +} + + +/** + * Unrarrer + */ +bitjs.archive.Unrarrer = class extends bitjs.archive.Unarchiver { + constructor(arrayBuffer, opt_pathToBitJS) { + super(arrayBuffer, opt_pathToBitJS); + } + + getScriptFileName() { return 'archive/unrar.js'; } +} + +/** + * Untarrer + * @extends {bitjs.archive.Unarchiver} + * @constructor + */ +bitjs.archive.Untarrer = class extends bitjs.archive.Unarchiver { + constructor(arrayBuffer, opt_pathToBitJS) { + super(arrayBuffer, opt_pathToBitJS); + } + + getScriptFileName() { return 'archive/untar.js'; }; +} + +/** + * Factory method that creates an unarchiver based on the byte signature found + * in the arrayBuffer. + * @param {ArrayBuffer} ab + * @param {string=} opt_pathToBitJS Path to the unarchiver script files. + * @return {bitjs.archive.Unarchiver} + */ +bitjs.archive.GetUnarchiver = function(ab, opt_pathToBitJS) { + let unarchiver = null; + const pathToBitJS = opt_pathToBitJS || ''; + const h = new Uint8Array(ab, 0, 10); + + if (h[0] == 0x52 && h[1] == 0x61 && h[2] == 0x72 && h[3] == 0x21) { // Rar! + unarchiver = new bitjs.archive.Unrarrer(ab, pathToBitJS); + } else if (h[0] == 0x50 && h[1] == 0x4B) { // PK (Zip) + unarchiver = new bitjs.archive.Unzipper(ab, pathToBitJS); + } else { // Try with tar + unarchiver = new bitjs.archive.Untarrer(ab, pathToBitJS); + } + return unarchiver; +}; + +//importScripts('rarvm.js'); + +/** + * rarvm.js + * + * Licensed under the MIT License + * + * Copyright(c) 2017 Google Inc. + */ + +/** + * CRC Implementation. + */ +const CRCTab = new Array(256).fill(0); + +// Helper functions between signed and unsigned integers. + +/** + * -1 becomes 0xffffffff + */ +function fromSigned32ToUnsigned32(val) { + return (val < 0) ? (val += 0x100000000) : val; +} + +/** + * 0xffffffff becomes -1 + */ +function fromUnsigned32ToSigned32(val) { + return (val >= 0x80000000) ? (val -= 0x100000000) : val; +} + +/** + * -1 becomes 0xff + */ +function fromSigned8ToUnsigned8(val) { + return (val < 0) ? (val += 0x100) : val; +} + +/** + * 0xff becomes -1 + */ +function fromUnsigned8ToSigned8(val) { + return (val >= 0x80) ? (val -= 0x100) : val; +} + +function InitCRC() { + for (let i = 0; i < 256; ++i) { + let c = i; + for (let j = 0; j < 8; ++j) { + // Read http://stackoverflow.com/questions/6798111/bitwise-operations-on-32-bit-unsigned-ints + // for the bitwise operator issue (JS interprets operands as 32-bit signed + // integers and we need to deal with unsigned ones here). + c = ((c & 1) ? ((c >>> 1) ^ 0xEDB88320) : (c >>> 1)) >>> 0; + } + CRCTab[i] = c; + } +} + +/** + * @param {number} startCRC + * @param {Uint8Array} arr + * @return {number} + */ +function CRC(startCRC, arr) { + if (CRCTab[1] == 0) { + InitCRC(); + } + +/* +#if defined(LITTLE_ENDIAN) && defined(PRESENT_INT32) && defined(ALLOW_NOT_ALIGNED_INT) + while (Size>0 && ((long)Data & 7)) + { + StartCRC=CRCTab[(byte)(StartCRC^Data[0])]^(StartCRC>>8); + Size--; + Data++; + } + while (Size>=8) + { + StartCRC^=*(uint32 *)Data; + StartCRC=CRCTab[(byte)StartCRC]^(StartCRC>>8); + StartCRC=CRCTab[(byte)StartCRC]^(StartCRC>>8); + StartCRC=CRCTab[(byte)StartCRC]^(StartCRC>>8); + StartCRC=CRCTab[(byte)StartCRC]^(StartCRC>>8); + StartCRC^=*(uint32 *)(Data+4); + StartCRC=CRCTab[(byte)StartCRC]^(StartCRC>>8); + StartCRC=CRCTab[(byte)StartCRC]^(StartCRC>>8); + StartCRC=CRCTab[(byte)StartCRC]^(StartCRC>>8); + StartCRC=CRCTab[(byte)StartCRC]^(StartCRC>>8); + Data+=8; + Size-=8; + } +#endif +*/ + + for (let i = 0; i < arr.length; ++i) { + const byte = ((startCRC ^ arr[i]) >>> 0) & 0xff; + startCRC = (CRCTab[byte] ^ (startCRC >>> 8)) >>> 0; + } + + return startCRC; +} + +// ============================================================================================== // + + +/** + * RarVM Implementation. + */ +const VM_MEMSIZE = 0x40000; +const VM_MEMMASK = (VM_MEMSIZE - 1); +const VM_GLOBALMEMADDR = 0x3C000; +const VM_GLOBALMEMSIZE = 0x2000; +const VM_FIXEDGLOBALSIZE = 64; +const MAXWINSIZE = 0x400000; +const MAXWINMASK = (MAXWINSIZE - 1); + +/** + */ +const VM_Commands = { + VM_MOV: 0, + VM_CMP: 1, + VM_ADD: 2, + VM_SUB: 3, + VM_JZ: 4, + VM_JNZ: 5, + VM_INC: 6, + VM_DEC: 7, + VM_JMP: 8, + VM_XOR: 9, + VM_AND: 10, + VM_OR: 11, + VM_TEST: 12, + VM_JS: 13, + VM_JNS: 14, + VM_JB: 15, + VM_JBE: 16, + VM_JA: 17, + VM_JAE: 18, + VM_PUSH: 19, + VM_POP: 20, + VM_CALL: 21, + VM_RET: 22, + VM_NOT: 23, + VM_SHL: 24, + VM_SHR: 25, + VM_SAR: 26, + VM_NEG: 27, + VM_PUSHA: 28, + VM_POPA: 29, + VM_PUSHF: 30, + VM_POPF: 31, + VM_MOVZX: 32, + VM_MOVSX: 33, + VM_XCHG: 34, + VM_MUL: 35, + VM_DIV: 36, + VM_ADC: 37, + VM_SBB: 38, + VM_PRINT: 39, + +/* +#ifdef VM_OPTIMIZE + VM_MOVB, VM_MOVD, VM_CMPB, VM_CMPD, + + VM_ADDB, VM_ADDD, VM_SUBB, VM_SUBD, VM_INCB, VM_INCD, VM_DECB, VM_DECD, + VM_NEGB, VM_NEGD, +#endif +*/ + + // TODO: This enum value would be much larger if VM_OPTIMIZE. + VM_STANDARD: 40, +}; + +/** + */ +const VM_StandardFilters = { + VMSF_NONE: 0, + VMSF_E8: 1, + VMSF_E8E9: 2, + VMSF_ITANIUM: 3, + VMSF_RGB: 4, + VMSF_AUDIO: 5, + VMSF_DELTA: 6, + VMSF_UPCASE: 7, +}; + +/** + */ +const VM_Flags = { + VM_FC: 1, + VM_FZ: 2, + VM_FS: 0x80000000, +}; + +/** + */ +const VM_OpType = { + VM_OPREG: 0, + VM_OPINT: 1, + VM_OPREGMEM: 2, + VM_OPNONE: 3, +}; + +/** + * Finds the key that maps to a given value in an object. This function is useful in debugging + * variables that use the above enums. + * @param {Object} obj + * @param {number} val + * @return {string} The key/enum value as a string. + */ +function findKeyForValue(obj, val) { + for (let key in obj) { + if (obj[key] === val) { + return key; + } + } + return null; +} + +function getDebugString(obj, val) { + let s = 'Unknown.'; + if (obj === VM_Commands) { + s = 'VM_Commands.'; + } else if (obj === VM_StandardFilters) { + s = 'VM_StandardFilters.'; + } else if (obj === VM_Flags) { + s = 'VM_OpType.'; + } else if (obj === VM_OpType) { + s = 'VM_OpType.'; + } + + return s + findKeyForValue(obj, val); +} + +/** + */ +class VM_PreparedOperand { + constructor() { + /** @type {VM_OpType} */ + this.Type; + + /** @type {number} */ + this.Data = 0; + + /** @type {number} */ + this.Base = 0; + + // TODO: In C++ this is a uint* + /** @type {Array} */ + this.Addr = null; + }; + + /** @return {string} */ + toString() { + if (this.Type === null) { + return 'Error: Type was null in VM_PreparedOperand'; + } + return '{ ' + + 'Type: ' + getDebugString(VM_OpType, this.Type) + + ', Data: ' + this.Data + + ', Base: ' + this.Base + + ' }'; + } +} + +/** + */ +class VM_PreparedCommand { + constructor() { + /** @type {VM_Commands} */ + this.OpCode; + + /** @type {boolean} */ + this.ByteMode = false; + + /** @type {VM_PreparedOperand} */ + this.Op1 = new VM_PreparedOperand(); + + /** @type {VM_PreparedOperand} */ + this.Op2 = new VM_PreparedOperand(); + } + + /** @return {string} */ + toString(indent) { + if (this.OpCode === null) { + return 'Error: OpCode was null in VM_PreparedCommand'; + } + indent = indent || ''; + return indent + '{\n' + + indent + ' OpCode: ' + getDebugString(VM_Commands, this.OpCode) + ',\n' + + indent + ' ByteMode: ' + this.ByteMode + ',\n' + + indent + ' Op1: ' + this.Op1.toString() + ',\n' + + indent + ' Op2: ' + this.Op2.toString() + ',\n' + + indent + '}'; + } +} + +/** + */ +class VM_PreparedProgram { + constructor() { + /** @type {Array} */ + this.Cmd = []; + + /** @type {Array} */ + this.AltCmd = null; + + /** @type {Uint8Array} */ + this.GlobalData = new Uint8Array(); + + /** @type {Uint8Array} */ + this.StaticData = new Uint8Array(); // static data contained in DB operators + + /** @type {Uint32Array} */ + this.InitR = new Uint32Array(7); + + /** + * A pointer to bytes that have been filtered by a program. + * @type {Uint8Array} + */ + this.FilteredData = null; + } + + /** @return {string} */ + toString() { + let s = '{\n Cmd: [\n'; + for (let i = 0; i < this.Cmd.length; ++i) { + s += this.Cmd[i].toString(' ') + ',\n'; + } + s += '],\n'; + // TODO: Dump GlobalData, StaticData, InitR? + s += ' }\n'; + return s; + } +} + +/** + */ +class UnpackFilter { + constructor() { + /** @type {number} */ + this.BlockStart = 0; + + /** @type {number} */ + this.BlockLength = 0; + + /** @type {number} */ + this.ExecCount = 0; + + /** @type {boolean} */ + this.NextWindow = false; + + // position of parent filter in Filters array used as prototype for filter + // in PrgStack array. Not defined for filters in Filters array. + /** @type {number} */ + this.ParentFilter = null; + + /** @type {VM_PreparedProgram} */ + this.Prg = new VM_PreparedProgram(); + } +} + +const VMCF_OP0 = 0; +const VMCF_OP1 = 1; +const VMCF_OP2 = 2; +const VMCF_OPMASK = 3; +const VMCF_BYTEMODE = 4; +const VMCF_JUMP = 8; +const VMCF_PROC = 16; +const VMCF_USEFLAGS = 32; +const VMCF_CHFLAGS = 64; + +const VM_CmdFlags = [ + /* VM_MOV */ VMCF_OP2 | VMCF_BYTEMODE , + /* VM_CMP */ VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_ADD */ VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_SUB */ VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_JZ */ VMCF_OP1 | VMCF_JUMP | VMCF_USEFLAGS , + /* VM_JNZ */ VMCF_OP1 | VMCF_JUMP | VMCF_USEFLAGS , + /* VM_INC */ VMCF_OP1 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_DEC */ VMCF_OP1 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_JMP */ VMCF_OP1 | VMCF_JUMP , + /* VM_XOR */ VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_AND */ VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_OR */ VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_TEST */ VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_JS */ VMCF_OP1 | VMCF_JUMP | VMCF_USEFLAGS , + /* VM_JNS */ VMCF_OP1 | VMCF_JUMP | VMCF_USEFLAGS , + /* VM_JB */ VMCF_OP1 | VMCF_JUMP | VMCF_USEFLAGS , + /* VM_JBE */ VMCF_OP1 | VMCF_JUMP | VMCF_USEFLAGS , + /* VM_JA */ VMCF_OP1 | VMCF_JUMP | VMCF_USEFLAGS , + /* VM_JAE */ VMCF_OP1 | VMCF_JUMP | VMCF_USEFLAGS , + /* VM_PUSH */ VMCF_OP1 , + /* VM_POP */ VMCF_OP1 , + /* VM_CALL */ VMCF_OP1 | VMCF_PROC , + /* VM_RET */ VMCF_OP0 | VMCF_PROC , + /* VM_NOT */ VMCF_OP1 | VMCF_BYTEMODE , + /* VM_SHL */ VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_SHR */ VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_SAR */ VMCF_OP2 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_NEG */ VMCF_OP1 | VMCF_BYTEMODE | VMCF_CHFLAGS , + /* VM_PUSHA */ VMCF_OP0 , + /* VM_POPA */ VMCF_OP0 , + /* VM_PUSHF */ VMCF_OP0 | VMCF_USEFLAGS , + /* VM_POPF */ VMCF_OP0 | VMCF_CHFLAGS , + /* VM_MOVZX */ VMCF_OP2 , + /* VM_MOVSX */ VMCF_OP2 , + /* VM_XCHG */ VMCF_OP2 | VMCF_BYTEMODE , + /* VM_MUL */ VMCF_OP2 | VMCF_BYTEMODE , + /* VM_DIV */ VMCF_OP2 | VMCF_BYTEMODE , + /* VM_ADC */ VMCF_OP2 | VMCF_BYTEMODE | VMCF_USEFLAGS | VMCF_CHFLAGS , + /* VM_SBB */ VMCF_OP2 | VMCF_BYTEMODE | VMCF_USEFLAGS | VMCF_CHFLAGS , + /* VM_PRINT */ VMCF_OP0 , +]; + + +/** + */ +class StandardFilterSignature { + /** + * @param {number} length + * @param {number} crc + * @param {VM_StandardFilters} type + */ + constructor(length, crc, type) { + /** @type {number} */ + this.Length = length; + + /** @type {number} */ + this.CRC = crc; + + /** @type {VM_StandardFilters} */ + this.Type = type; + } +} + +/** + * @type {Array} + */ +const StdList = [ + new StandardFilterSignature(53, 0xad576887, VM_StandardFilters.VMSF_E8), + new StandardFilterSignature(57, 0x3cd7e57e, VM_StandardFilters.VMSF_E8E9), + new StandardFilterSignature(120, 0x3769893f, VM_StandardFilters.VMSF_ITANIUM), + new StandardFilterSignature(29, 0x0e06077d, VM_StandardFilters.VMSF_DELTA), + new StandardFilterSignature(149, 0x1c2c5dc8, VM_StandardFilters.VMSF_RGB), + new StandardFilterSignature(216, 0xbc85e701, VM_StandardFilters.VMSF_AUDIO), + new StandardFilterSignature(40, 0x46b9c560, VM_StandardFilters.VMSF_UPCASE), +]; + +/** + * @constructor + */ +class RarVM { + constructor() { + /** @private {Uint8Array} */ + this.mem_ = null; + + /** @private {Uint32Array} */ + this.R_ = new Uint32Array(8); + + /** @private {number} */ + this.flags_ = 0; + } + + /** + * Initializes the memory of the VM. + */ + init() { + if (!this.mem_) { + this.mem_ = new Uint8Array(VM_MEMSIZE); + } + } + + /** + * @param {Uint8Array} code + * @return {VM_StandardFilters} + */ + isStandardFilter(code) { + const codeCRC = (CRC(0xffffffff, code, code.length) ^ 0xffffffff) >>> 0; + for (let i = 0; i < StdList.length; ++i) { + if (StdList[i].CRC == codeCRC && StdList[i].Length == code.length) + return StdList[i].Type; + } + + return VM_StandardFilters.VMSF_NONE; + } + + /** + * @param {VM_PreparedOperand} op + * @param {boolean} byteMode + * @param {bitjs.io.BitStream} bstream A rtl bit stream. + */ + decodeArg(op, byteMode, bstream) { + const data = bstream.peekBits(16); + if (data & 0x8000) { + op.Type = VM_OpType.VM_OPREG; // Operand is register (R[0]..R[7]) + bstream.readBits(1); // 1 flag bit and... + op.Data = bstream.readBits(3); // ... 3 register number bits + op.Addr = [this.R_[op.Data]] // TODO &R[Op.Data] // Register address + } else { + if ((data & 0xc000) == 0) { + op.Type = VM_OpType.VM_OPINT; // Operand is integer + bstream.readBits(2); // 2 flag bits + if (byteMode) { + op.Data = bstream.readBits(8); // Byte integer. + } else { + op.Data = RarVM.readData(bstream); // 32 bit integer. + } + } else { + // Operand is data addressed by register data, base address or both. + op.Type = VM_OpType.VM_OPREGMEM; + if ((data & 0x2000) == 0) { + bstream.readBits(3); // 3 flag bits + // Base address is zero, just use the address from register. + op.Data = bstream.readBits(3); // (Data>>10)&7 + op.Addr = [this.R_[op.Data]]; // TODO &R[op.Data] + op.Base = 0; + } else { + bstream.readBits(4); // 4 flag bits + if ((data & 0x1000) == 0) { + // Use both register and base address. + op.Data = bstream.readBits(3); + op.Addr = [this.R_[op.Data]]; // TODO &R[op.Data] + } else { + // Use base address only. Access memory by fixed address. + op.Data = 0; + } + op.Base = RarVM.readData(bstream); // Read base address. + } + } + } + } + + /** + * @param {VM_PreparedProgram} prg + */ + execute(prg) { + this.R_.set(prg.InitR); + + const globalSize = Math.min(prg.GlobalData.length, VM_GLOBALMEMSIZE); + if (globalSize) { + this.mem_.set(prg.GlobalData.subarray(0, globalSize), VM_GLOBALMEMADDR); + } + + const staticSize = Math.min(prg.StaticData.length, VM_GLOBALMEMSIZE - globalSize); + if (staticSize) { + this.mem_.set(prg.StaticData.subarray(0, staticSize), VM_GLOBALMEMADDR + globalSize); + } + + this.R_[7] = VM_MEMSIZE; + this.flags_ = 0; + + const preparedCodes = prg.AltCmd ? prg.AltCmd : prg.Cmd; + if (prg.Cmd.length > 0 && !this.executeCode(preparedCodes)) { + // Invalid VM program. Let's replace it with 'return' command. + preparedCode.OpCode = VM_Commands.VM_RET; + } + + const dataView = new DataView(this.mem_.buffer, VM_GLOBALMEMADDR); + let newBlockPos = dataView.getUint32(0x20, true /* little endian */) & VM_MEMMASK; + const newBlockSize = dataView.getUint32(0x1c, true /* little endian */) & VM_MEMMASK; + if (newBlockPos + newBlockSize >= VM_MEMSIZE) { + newBlockPos = newBlockSize = 0; + } + prg.FilteredData = this.mem_.subarray(newBlockPos, newBlockPos + newBlockSize); + + prg.GlobalData = new Uint8Array(0); + + const dataSize = Math.min(dataView.getUint32(0x30), (VM_GLOBALMEMSIZE - VM_FIXEDGLOBALSIZE)); + if (dataSize != 0) { + const len = dataSize + VM_FIXEDGLOBALSIZE; + prg.GlobalData = new Uint8Array(len); + prg.GlobalData.set(mem.subarray(VM_GLOBALMEMADDR, VM_GLOBALMEMADDR + len)); + } + } + + /** + * @param {Array} preparedCodes + * @return {boolean} + */ + executeCode(preparedCodes) { + let codeIndex = 0; + let cmd = preparedCodes[codeIndex]; + // TODO: Why is this an infinite loop instead of just returning + // when a VM_RET is hit? + while (1) { + switch (cmd.OpCode) { + case VM_Commands.VM_RET: + if (this.R_[7] >= VM_MEMSIZE) { + return true; + } + //SET_IP(GET_VALUE(false,(uint *)&Mem[R[7] & VM_MEMMASK])); + this.R_[7] += 4; + continue; + + case VM_Commands.VM_STANDARD: + this.executeStandardFilter(cmd.Op1.Data); + break; + + default: + console.error('RarVM OpCode not supported: ' + getDebugString(VM_Commands, cmd.OpCode)); + break; + } // switch (cmd.OpCode) + codeIndex++; + cmd = preparedCodes[codeIndex]; + } + } + + /** + * @param {number} filterType + */ + executeStandardFilter(filterType) { + switch (filterType) { + case VM_StandardFilters.VMSF_RGB: { + const dataSize = this.R_[4]; + const width = this.R_[0] - 3; + const posR = this.R_[1]; + const Channels = 3; + let srcOffset = 0; + let destOffset = dataSize; + + // byte *SrcData=Mem,*DestData=SrcData+DataSize; + // SET_VALUE(false,&Mem[VM_GLOBALMEMADDR+0x20],DataSize); + const dataView = new DataView(this.mem_.buffer, VM_GLOBALMEMADDR /* offset */); + dataView.setUint32(0x20 /* byte offset */, + dataSize /* value */, + true /* little endian */); + + if (dataSize >= (VM_GLOBALMEMADDR / 2) || posR < 0) { + break; + } + + for (let curChannel = 0; curChannel < Channels; ++curChannel) { + let prevByte=0; + + for (let i = curChannel; i < dataSize; i += Channels) { + let predicted; + const upperPos = i - width; + if (upperPos >= 3) { + const upperByte = this.mem_[destOffset + upperPos]; + const upperLeftByte = this.mem_[destOffset + upperPos - 3]; + predicted = prevByte + upperByte - upperLeftByte; + + const pa = Math.abs(predicted - prevByte); + const pb = Math.abs(predicted - upperByte); + const pc = Math.abs(predicted - upperLeftByte); + if (pa <= pb && pa <= pc) { + predicted = prevByte; + } else if (pb <= pc) { + predicted = upperByte; + } else { + predicted = upperLeftByte; + } + } else { + predicted = prevByte; + } + //DestData[I]=PrevByte=(byte)(Predicted-*(SrcData++)); + prevByte = (predicted - this.mem_[srcOffset++]) & 0xff; + this.mem_[destOffset + i] = prevByte; + } + } + for (let i = posR, border = dataSize - 2; i < border; i += 3) { + const g = this.mem_[destOffset + i + 1]; + this.mem_[destOffset + i] += g; + this.mem_[destOffset + i + 2] += g; + } + + break; + } + + // The C++ version of this standard filter uses an odd mixture of + // signed and unsigned integers, bytes and various casts. Careful! + case VM_StandardFilters.VMSF_AUDIO: { + const dataSize = this.R_[4]; + const channels = this.R_[0]; + let srcOffset = 0; + let destOffset = dataSize; + + //SET_VALUE(false,&Mem[VM_GLOBALMEMADDR+0x20],DataSize); + const dataView = new DataView(this.mem_.buffer, VM_GLOBALMEMADDR); + dataView.setUint32(0x20 /* byte offset */, + dataSize /* value */, + true /* little endian */); + + if (dataSize >= VM_GLOBALMEMADDR / 2) { + break; + } + + for (let curChannel = 0; curChannel < channels; ++curChannel) { + let prevByte = 0; // uint + let prevDelta = 0; // uint + let dif = [0, 0, 0, 0, 0, 0, 0]; + let d1 = 0, d2 = 0, d3; // ints + let k1 = 0, k2 = 0, k3 = 0; // ints + + for (var i = curChannel, byteCount = 0; + i < dataSize; + i += channels, ++byteCount) { + d3 = d2; + d2 = fromUnsigned32ToSigned32(prevDelta - d1); + d1 = fromUnsigned32ToSigned32(prevDelta); + + let predicted = fromSigned32ToUnsigned32(8*prevByte + k1*d1 + k2*d2 + k3*d3); // uint + predicted = (predicted >>> 3) & 0xff; + + let curByte = this.mem_[srcOffset++]; // uint + + // Predicted-=CurByte; + predicted = fromSigned32ToUnsigned32(predicted - curByte); + this.mem_[destOffset + i] = (predicted & 0xff); + + // PrevDelta=(signed char)(Predicted-PrevByte); + // where Predicted, PrevByte, PrevDelta are all unsigned int (32) + // casting this subtraction to a (signed char) is kind of invalid + // but it does the following: + // - do the subtraction + // - get the bottom 8 bits of the result + // - if it was >= 0x80, then the value is negative (subtract 0x100) + // - if the value is now negative, add 0x100000000 to make unsigned + // + // Example: + // predicted = 101 + // prevByte = 4294967158 + // (predicted - prevByte) = -4294967057 + // take lower 8 bits: 1110 1111 = 239 + // since > 127, subtract 256 = -17 + // since < 0, add 0x100000000 = 4294967279 + prevDelta = fromSigned32ToUnsigned32( + fromUnsigned8ToSigned8((predicted - prevByte) & 0xff)); + prevByte = predicted; + + // int D=((signed char)CurByte)<<3; + let curByteAsSignedChar = fromUnsigned8ToSigned8(curByte); // signed char + let d = (curByteAsSignedChar << 3); + + dif[0] += Math.abs(d); + dif[1] += Math.abs(d-d1); + dif[2] += Math.abs(d+d1); + dif[3] += Math.abs(d-d2); + dif[4] += Math.abs(d+d2); + dif[5] += Math.abs(d-d3); + dif[6] += Math.abs(d+d3); + + if ((byteCount & 0x1f) == 0) { + let minDif = dif[0], numMinDif = 0; + dif[0] = 0; + for (let j = 1; j < 7; ++j) { + if (dif[j] < minDif) { + minDif = dif[j]; + numMinDif = j; + } + dif[j] = 0; + } + switch (numMinDif) { + case 1: if (k1>=-16) k1--; break; + case 2: if (k1 < 16) k1++; break; + case 3: if (k2>=-16) k2--; break; + case 4: if (k2 < 16) k2++; break; + case 5: if (k3>=-16) k3--; break; + case 6: if (k3 < 16) k3++; break; + } + } + } + } + + break; + } + + case VM_StandardFilters.VMSF_DELTA: { + const dataSize = this.R_[4]; + const channels = this.R_[0]; + let srcPos = 0; + const border = dataSize * 2; + + //SET_VALUE(false,&Mem[VM_GLOBALMEMADDR+0x20],DataSize); + const dataView = new DataView(this.mem_.buffer, VM_GLOBALMEMADDR); + dataView.setUint32(0x20 /* byte offset */, + dataSize /* value */, + true /* little endian */); + + if (dataSize >= VM_GLOBALMEMADDR / 2) { + break; + } + + // Bytes from same channels are grouped to continual data blocks, + // so we need to place them back to their interleaving positions. + for (let curChannel = 0; curChannel < channels; ++curChannel) { + let prevByte = 0; + for (let destPos = dataSize + curChannel; destPos < border; destPos += channels) { + prevByte = (prevByte - this.mem_[srcPos++]) & 0xff; + this.mem_[destPos] = prevByte; + } + } + + break; + } + + default: + console.error('RarVM Standard Filter not supported: ' + getDebugString(VM_StandardFilters, filterType)); + break; + } + } + + /** + * @param {Uint8Array} code + * @param {VM_PreparedProgram} prg + */ + prepare(code, prg) { + let codeSize = code.length; + + //InitBitInput(); + //memcpy(InBuf,Code,Min(CodeSize,BitInput::MAX_SIZE)); + const bstream = new bitjs.io.BitStream(code.buffer, true /* rtl */); + + // Calculate the single byte XOR checksum to check validity of VM code. + let xorSum = 0; + for (let i = 1; i < codeSize; ++i) { + xorSum ^= code[i]; + } + + bstream.readBits(8); + + prg.Cmd = []; // TODO: Is this right? I don't see it being done in rarvm.cpp. + + // VM code is valid if equal. + if (xorSum == code[0]) { + const filterType = this.isStandardFilter(code); + if (filterType != VM_StandardFilters.VMSF_NONE) { + // VM code is found among standard filters. + const curCmd = new VM_PreparedCommand(); + prg.Cmd.push(curCmd); + + curCmd.OpCode = VM_Commands.VM_STANDARD; + curCmd.Op1.Data = filterType; + // TODO: Addr=&CurCmd->Op1.Data + curCmd.Op1.Addr = [curCmd.Op1.Data]; + curCmd.Op2.Addr = [null]; // &CurCmd->Op2.Data; + curCmd.Op1.Type = VM_OpType.VM_OPNONE; + curCmd.Op2.Type = VM_OpType.VM_OPNONE; + codeSize = 0; + } + + const dataFlag = bstream.readBits(1); + + // Read static data contained in DB operators. This data cannot be + // changed, it is a part of VM code, not a filter parameter. + + if (dataFlag & 0x8000) { + const dataSize = RarVM.readData(bstream) + 1; + // TODO: This accesses the byte pointer of the bstream directly. Is that ok? + for (let i = 0; i < bstream.bytePtr < codeSize && i < dataSize; ++i) { + // Append a byte to the program's static data. + const newStaticData = new Uint8Array(prg.StaticData.length + 1); + newStaticData.set(prg.StaticData); + newStaticData[newStaticData.length - 1] = bstream.readBits(8); + prg.StaticData = newStaticData; + } + } + + while (bstream.bytePtr < codeSize) { + const curCmd = new VM_PreparedCommand(); + prg.Cmd.push(curCmd); // Prg->Cmd.Add(1) + const flag = bstream.peekBits(1); + if (!flag) { // (Data&0x8000)==0 + curCmd.OpCode = bstream.readBits(4); + } else { + curCmd.OpCode = (bstream.readBits(6) - 24); + } + + if (VM_CmdFlags[curCmd.OpCode] & VMCF_BYTEMODE) { + curCmd.ByteMode = (bstream.readBits(1) != 0); + } else { + curCmd.ByteMode = 0; + } + curCmd.Op1.Type = VM_OpType.VM_OPNONE; + curCmd.Op2.Type = VM_OpType.VM_OPNONE; + const opNum = (VM_CmdFlags[curCmd.OpCode] & VMCF_OPMASK); + curCmd.Op1.Addr = null; + curCmd.Op2.Addr = null; + if (opNum > 0) { + this.decodeArg(curCmd.Op1, curCmd.ByteMode, bstream); // reading the first operand + if (opNum == 2) { + this.decodeArg(curCmd.Op2, curCmd.ByteMode, bstream); // reading the second operand + } else { + if (curCmd.Op1.Type == VM_OpType.VM_OPINT && (VM_CmdFlags[curCmd.OpCode] & (VMCF_JUMP|VMCF_PROC))) { + // Calculating jump distance. + let distance = curCmd.Op1.Data; + if (distance >= 256) { + distance -= 256; + } else { + if (distance >= 136) { + distance -= 264; + } else { + if (distance >= 16) { + distance -= 8; + } else { + if (distance >= 8) { + distance -= 16; + } + } + } + distance += prg.Cmd.length; + } + curCmd.Op1.Data = distance; + } + } + } // if (OpNum>0) + } // while ((uint)InAddrOp1.Data + curCmd.Op1.Addr = [curCmd.Op1.Data]; + curCmd.Op2.Addr = [curCmd.Op2.Data]; + curCmd.Op1.Type = VM_OpType.VM_OPNONE; + curCmd.Op2.Type = VM_OpType.VM_OPNONE; + + // If operand 'Addr' field has not been set by DecodeArg calls above, + // let's set it to point to operand 'Data' field. It is necessary for + // VM_OPINT type operands (usual integers) or maybe if something was + // not set properly for other operands. 'Addr' field is required + // for quicker addressing of operand data. + for (let i = 0; i < prg.Cmd.length; ++i) { + const cmd = prg.Cmd[i]; + if (cmd.Op1.Addr == null) { + cmd.Op1.Addr = [cmd.Op1.Data]; + } + if (cmd.Op2.Addr == null) { + cmd.Op2.Addr = [cmd.Op2.Data]; + } + } + + /* + #ifdef VM_OPTIMIZE + if (CodeSize!=0) + Optimize(Prg); + #endif + */ + } + + /** + * @param {Uint8Array} arr The byte array to set a value in. + * @param {number} value The unsigned 32-bit value to set. + * @param {number} offset Offset into arr to start setting the value, defaults to 0. + */ + setLowEndianValue(arr, value, offset) { + const i = offset || 0; + arr[i] = value & 0xff; + arr[i + 1] = (value >>> 8) & 0xff; + arr[i + 2] = (value >>> 16) & 0xff; + arr[i + 3] = (value >>> 24) & 0xff; + } + + /** + * Sets a number of bytes of the VM memory at the given position from a + * source buffer of bytes. + * @param {number} pos The position in the VM memory to start writing to. + * @param {Uint8Array} buffer The source buffer of bytes. + * @param {number} dataSize The number of bytes to set. + */ + setMemory(pos, buffer, dataSize) { + if (pos < VM_MEMSIZE) { + const numBytes = Math.min(dataSize, VM_MEMSIZE - pos); + for (let i = 0; i < numBytes; ++i) { + this.mem_[pos + i] = buffer[i]; + } + } + } + + /** + * Static function that reads in the next set of bits for the VM + * (might return 4, 8, 16 or 32 bits). + * @param {bitjs.io.BitStream} bstream A RTL bit stream. + * @return {number} The value of the bits read. + */ + static readData(bstream) { + // Read in the first 2 bits. + const flags = bstream.readBits(2); + switch (flags) { // Data&0xc000 + // Return the next 4 bits. + case 0: + return bstream.readBits(4); // (Data>>10)&0xf + + case 1: // 0x4000 + // 0x3c00 => 0011 1100 0000 0000 + if (bstream.peekBits(4) == 0) { // (Data&0x3c00)==0 + // Skip the 4 zero bits. + bstream.readBits(4); + // Read in the next 8 and pad with 1s to 32 bits. + return (0xffffff00 | bstream.readBits(8)) >>> 0; // ((Data>>2)&0xff) + } + + // Else, read in the next 8. + return bstream.readBits(8); + + // Read in the next 16. + case 2: // 0x8000 + const val = bstream.getBits(); + bstream.readBits(16); + return val; //bstream.readBits(16); + + // case 3 + default: + return (bstream.readBits(16) << 16) | bstream.readBits(16); + } + } +} + +// ============================================================================================== // + + +// Progress variables. +let currentFilename = ""; +let currentFileNumber = 0; +let currentBytesUnarchivedInFile = 0; +let currentBytesUnarchived = 0; +let totalUncompressedBytesInArchive = 0; +let totalFilesInArchive = 0; + +// Helper functions. +const info = function(str) { + postMessage(new bitjs.archive.UnarchiveInfoEvent(str)); +}; +const err = function(str) { + postMessage(new bitjs.archive.UnarchiveErrorEvent(str)); +}; +const postProgress = function() { + postMessage(new bitjs.archive.UnarchiveProgressEvent( + currentFilename, + currentFileNumber, + currentBytesUnarchivedInFile, + currentBytesUnarchived, + totalUncompressedBytesInArchive, + totalFilesInArchive)); +}; + +// shows a byte value as its hex representation +const nibble = "0123456789ABCDEF"; +const byteValueToHexString = function(num) { + return nibble[num>>4] + nibble[num&0xF]; +}; +const twoByteValueToHexString = function(num) { + return nibble[(num>>12)&0xF] + nibble[(num>>8)&0xF] + nibble[(num>>4)&0xF] + nibble[num&0xF]; +}; + + +// Volume Types +const MARK_HEAD = 0x72; +const MAIN_HEAD = 0x73; +const FILE_HEAD = 0x74; +const COMM_HEAD = 0x75; +const AV_HEAD = 0x76; +const SUB_HEAD = 0x77; +const PROTECT_HEAD = 0x78; +const SIGN_HEAD = 0x79; +const NEWSUB_HEAD = 0x7a; +const ENDARC_HEAD = 0x7b; + +// ============================================================================================== // + +/** + */ +class RarVolumeHeader { + /** + * @param {bitjs.io.BitStream} bstream + */ + constructor(bstream) { + const headPos = bstream.bytePtr; + // byte 1,2 + info("Rar Volume Header @"+bstream.bytePtr); + + this.crc = bstream.readBits(16); + info(" crc=" + this.crc); + + // byte 3 + this.headType = bstream.readBits(8); + info(" headType=" + this.headType); + + // Get flags + // bytes 4,5 + this.flags = {}; + this.flags.value = bstream.peekBits(16); + + info(" flags=" + twoByteValueToHexString(this.flags.value)); + switch (this.headType) { + case MAIN_HEAD: + this.flags.MHD_VOLUME = !!bstream.readBits(1); + this.flags.MHD_COMMENT = !!bstream.readBits(1); + this.flags.MHD_LOCK = !!bstream.readBits(1); + this.flags.MHD_SOLID = !!bstream.readBits(1); + this.flags.MHD_PACK_COMMENT = !!bstream.readBits(1); + this.flags.MHD_NEWNUMBERING = this.flags.MHD_PACK_COMMENT; + this.flags.MHD_AV = !!bstream.readBits(1); + this.flags.MHD_PROTECT = !!bstream.readBits(1); + this.flags.MHD_PASSWORD = !!bstream.readBits(1); + this.flags.MHD_FIRSTVOLUME = !!bstream.readBits(1); + this.flags.MHD_ENCRYPTVER = !!bstream.readBits(1); + bstream.readBits(6); // unused + break; + case FILE_HEAD: + this.flags.LHD_SPLIT_BEFORE = !!bstream.readBits(1); // 0x0001 + this.flags.LHD_SPLIT_AFTER = !!bstream.readBits(1); // 0x0002 + this.flags.LHD_PASSWORD = !!bstream.readBits(1); // 0x0004 + this.flags.LHD_COMMENT = !!bstream.readBits(1); // 0x0008 + this.flags.LHD_SOLID = !!bstream.readBits(1); // 0x0010 + bstream.readBits(3); // unused + this.flags.LHD_LARGE = !!bstream.readBits(1); // 0x0100 + this.flags.LHD_UNICODE = !!bstream.readBits(1); // 0x0200 + this.flags.LHD_SALT = !!bstream.readBits(1); // 0x0400 + this.flags.LHD_VERSION = !!bstream.readBits(1); // 0x0800 + this.flags.LHD_EXTTIME = !!bstream.readBits(1); // 0x1000 + this.flags.LHD_EXTFLAGS = !!bstream.readBits(1); // 0x2000 + bstream.readBits(2); // unused + info(" LHD_SPLIT_BEFORE = " + this.flags.LHD_SPLIT_BEFORE); + break; + default: + bstream.readBits(16); + } + + // byte 6,7 + this.headSize = bstream.readBits(16); + info(" headSize=" + this.headSize); + switch (this.headType) { + case MAIN_HEAD: + this.highPosAv = bstream.readBits(16); + this.posAv = bstream.readBits(32); + if (this.flags.MHD_ENCRYPTVER) { + this.encryptVer = bstream.readBits(8); + } + info("Found MAIN_HEAD with highPosAv=" + this.highPosAv + ", posAv=" + this.posAv); + break; + case FILE_HEAD: + this.packSize = bstream.readBits(32); + this.unpackedSize = bstream.readBits(32); + this.hostOS = bstream.readBits(8); + this.fileCRC = bstream.readBits(32); + this.fileTime = bstream.readBits(32); + this.unpVer = bstream.readBits(8); + this.method = bstream.readBits(8); + this.nameSize = bstream.readBits(16); + this.fileAttr = bstream.readBits(32); + + if (this.flags.LHD_LARGE) { + info("Warning: Reading in LHD_LARGE 64-bit size values"); + this.HighPackSize = bstream.readBits(32); + this.HighUnpSize = bstream.readBits(32); + } else { + this.HighPackSize = 0; + this.HighUnpSize = 0; + if (this.unpackedSize == 0xffffffff) { + this.HighUnpSize = 0x7fffffff + this.unpackedSize = 0xffffffff; + } + } + this.fullPackSize = 0; + this.fullUnpackSize = 0; + this.fullPackSize |= this.HighPackSize; + this.fullPackSize <<= 32; + this.fullPackSize |= this.packSize; + + // read in filename + + this.filename = bstream.readBytes(this.nameSize); + let _s = ''; + for (let _i = 0; _i < this.filename.length; _i++) { + _s += String.fromCharCode(this.filename[_i]); + } + + this.filename = _s; + + if (this.flags.LHD_SALT) { + info("Warning: Reading in 64-bit salt value"); + this.salt = bstream.readBits(64); // 8 bytes + } + + if (this.flags.LHD_EXTTIME) { + // 16-bit flags + const extTimeFlags = bstream.readBits(16); + + // this is adapted straight out of arcread.cpp, Archive::ReadHeader() + for (let I = 0; I < 4; ++I) { + const rmode = extTimeFlags >> ((3 - I) * 4); + if ((rmode & 8) == 0) { + continue; + } + if (I != 0) + bstream.readBits(16); + const count = (rmode & 3); + for (let J = 0; J < count; ++J) { + bstream.readBits(8); + } + } + } + + if (this.flags.LHD_COMMENT) { + info("Found a LHD_COMMENT"); + } + + while (headPos + this.headSize > bstream.bytePtr) { + bstream.readBits(1); + } + + info("Found FILE_HEAD with packSize=" + this.packSize + ", unpackedSize= " + this.unpackedSize + ", hostOS=" + this.hostOS + ", unpVer=" + this.unpVer + ", method=" + this.method + ", filename=" + this.filename); + + break; + default: + info("Found a header of type 0x" + byteValueToHexString(this.headType)); + // skip the rest of the header bytes (for now) + bstream.readBytes(this.headSize - 7); + break; + } + } +} + +const BLOCK_LZ = 0; +const BLOCK_PPM = 1; + +const rLDecode = [0,1,2,3,4,5,6,7,8,10,12,14,16,20,24,28,32,40,48,56,64,80,96,112,128,160,192,224]; +const rLBits = [0,0,0,0,0,0,0,0,1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5]; +const rDBitLengthCounts = [4,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,14,0,12]; +const rSDDecode = [0,4,8,16,32,64,128,192]; +const rSDBits = [2,2,3, 4, 5, 6, 6, 6]; + +const rDDecode = [0, 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, + 48, 64, 96, 128, 192, 256, 384, 512, 768, 1024, 1536, 2048, 3072, + 4096, 6144, 8192, 12288, 16384, 24576, 32768, 49152, 65536, 98304, + 131072, 196608, 262144, 327680, 393216, 458752, 524288, 589824, + 655360, 720896, 786432, 851968, 917504, 983040]; + +const rDBits = [0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, + 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14, + 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16]; + +const rLOW_DIST_REP_COUNT = 16; + +const rNC = 299; +const rDC = 60; +const rLDC = 17; +const rRC = 28; +const rBC = 20; +const rHUFF_TABLE_SIZE = (rNC+rDC+rRC+rLDC); + +const UnpOldTable = new Array(rHUFF_TABLE_SIZE); + +const BD = { //bitdecode + DecodeLen: new Array(16), + DecodePos: new Array(16), + DecodeNum: new Array(rBC) +}; +const LD = { //litdecode + DecodeLen: new Array(16), + DecodePos: new Array(16), + DecodeNum: new Array(rNC) +}; +const DD = { //distdecode + DecodeLen: new Array(16), + DecodePos: new Array(16), + DecodeNum: new Array(rDC) +}; +const LDD = { //low dist decode + DecodeLen: new Array(16), + DecodePos: new Array(16), + DecodeNum: new Array(rLDC) +}; +const RD = { //rep decode + DecodeLen: new Array(16), + DecodePos: new Array(16), + DecodeNum: new Array(rRC) +}; + +/** + * @type {Array} + */ +const rOldBuffers = []; + +/** + * The current buffer we are unpacking to. + * @type {bitjs.io.ByteBuffer} + */ +let rBuffer; + +/** + * The buffer of the final bytes after filtering (only used in Unpack29). + * @type {bitjs.io.ByteBuffer} + */ +let wBuffer; + + +/** + * In unpack.cpp, UnpPtr keeps track of what bytes have been unpacked + * into the Window buffer and WrPtr keeps track of what bytes have been + * actually written to disk after the unpacking and optional filtering + * has been done. + * + * In our case, rBuffer is the buffer for the unpacked bytes and wBuffer is + * the final output bytes. + */ + + +/** + * Read in Huffman tables for RAR + * @param {bitjs.io.BitStream} bstream + */ +function RarReadTables(bstream) { + const BitLength = new Array(rBC); + const Table = new Array(rHUFF_TABLE_SIZE); + + // before we start anything we need to get byte-aligned + bstream.readBits( (8 - bstream.bitPtr) & 0x7 ); + + if (bstream.readBits(1)) { + info("Error! PPM not implemented yet"); + return; + } + + if (!bstream.readBits(1)) { //discard old table + for (let i = UnpOldTable.length; i--;) { + UnpOldTable[i] = 0; + } + } + + // read in bit lengths + for (let I = 0; I < rBC; ++I) { + const Length = bstream.readBits(4); + if (Length == 15) { + let ZeroCount = bstream.readBits(4); + if (ZeroCount == 0) { + BitLength[I] = 15; + } + else { + ZeroCount += 2; + while (ZeroCount-- > 0 && I < rBC) + BitLength[I++] = 0; + --I; + } + } + else { + BitLength[I] = Length; + } + } + + // now all 20 bit lengths are obtained, we construct the Huffman Table: + + RarMakeDecodeTables(BitLength, 0, BD, rBC); + + const TableSize = rHUFF_TABLE_SIZE; + for (let i = 0; i < TableSize;) { + const num = RarDecodeNumber(bstream, BD); + if (num < 16) { + Table[i] = (num + UnpOldTable[i]) & 0xf; + i++; + } else if (num < 18) { + let N = (num == 16) ? (bstream.readBits(3) + 3) : (bstream.readBits(7) + 11); + + while (N-- > 0 && i < TableSize) { + Table[i] = Table[i - 1]; + i++; + } + } else { + let N = (num == 18) ? (bstream.readBits(3) + 3) : (bstream.readBits(7) + 11); + + while (N-- > 0 && i < TableSize) { + Table[i++] = 0; + } + } + } + + RarMakeDecodeTables(Table, 0, LD, rNC); + RarMakeDecodeTables(Table, rNC, DD, rDC); + RarMakeDecodeTables(Table, rNC + rDC, LDD, rLDC); + RarMakeDecodeTables(Table, rNC + rDC + rLDC, RD, rRC); + + for (let i = UnpOldTable.length; i--;) { + UnpOldTable[i] = Table[i]; + } + return true; +} + + +function RarDecodeNumber(bstream, dec) { + const DecodeLen = dec.DecodeLen; + const DecodePos = dec.DecodePos; + const DecodeNum = dec.DecodeNum; + const bitField = bstream.getBits() & 0xfffe; + //some sort of rolled out binary search + const bits = ((bitField < DecodeLen[8])? + ((bitField < DecodeLen[4])? + ((bitField < DecodeLen[2])? + ((bitField < DecodeLen[1])?1:2) + :((bitField < DecodeLen[3])?3:4)) + :(bitField < DecodeLen[6])? + ((bitField < DecodeLen[5])?5:6) + :((bitField < DecodeLen[7])?7:8)) + :((bitField < DecodeLen[12])? + ((bitField < DecodeLen[10])? + ((bitField < DecodeLen[9])?9:10) + :((bitField < DecodeLen[11])?11:12)) + :(bitField < DecodeLen[14])? + ((bitField < DecodeLen[13])?13:14) + :15)); + bstream.readBits(bits); + const N = DecodePos[bits] + ((bitField - DecodeLen[bits -1]) >>> (16 - bits)); + + return DecodeNum[N]; +} + + +function RarMakeDecodeTables(BitLength, offset, dec, size) { + const DecodeLen = dec.DecodeLen; + const DecodePos = dec.DecodePos; + const DecodeNum = dec.DecodeNum; + const LenCount = [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]; + const TmpPos = [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]; + let N = 0; + let M = 0; + + for (let i = DecodeNum.length; i--;) { + DecodeNum[i] = 0; + } + for (let i = 0; i < size; i++) { + LenCount[BitLength[i + offset] & 0xF]++; + } + LenCount[0] = 0; + TmpPos[0] = 0; + DecodePos[0] = 0; + DecodeLen[0] = 0; + + for (let I = 1; I < 16; ++I) { + N = 2 * (N+LenCount[I]); + M = (N << (15-I)); + if (M > 0xFFFF) { + M = 0xFFFF; + } + DecodeLen[I] = M; + DecodePos[I] = DecodePos[I-1] + LenCount[I-1]; + TmpPos[I] = DecodePos[I]; + } + for (let I = 0; I < size; ++I) { + if (BitLength[I + offset] != 0) { + DecodeNum[ TmpPos[ BitLength[offset + I] & 0xF ]++] = I; + } + } + +} + +// TODO: implement +/** + * @param {bitjs.io.BitStream} bstream + * @param {boolean} Solid + */ +function Unpack15(bstream, Solid) { + info("ERROR! RAR 1.5 compression not supported"); +} + +/** + * Unpacks the bit stream into rBuffer using the Unpack20 algorithm. + * @param {bitjs.io.BitStream} bstream + * @param {boolean} Solid + */ +function Unpack20(bstream, Solid) { + const destUnpSize = rBuffer.data.length; + let oldDistPtr = 0; + + if (!Solid) { + RarReadTables20(bstream); + } + while (destUnpSize > rBuffer.ptr) { + let num = RarDecodeNumber(bstream, LD); + if (num < 256) { + rBuffer.insertByte(num); + continue; + } + if (num > 269) { + let Length = rLDecode[num -= 270] + 3; + if ((Bits = rLBits[num]) > 0) { + Length += bstream.readBits(Bits); + } + let DistNumber = RarDecodeNumber(bstream, DD); + let Distance = rDDecode[DistNumber] + 1; + if ((Bits = rDBits[DistNumber]) > 0) { + Distance += bstream.readBits(Bits); + } + if (Distance >= 0x2000) { + Length++; + if (Distance >= 0x40000) { + Length++; + } + } + lastLength = Length; + lastDist = rOldDist[oldDistPtr++ & 3] = Distance; + RarCopyString(Length, Distance); + continue; + } + if (num == 269) { + RarReadTables20(bstream); + RarUpdateProgress(); + continue; + } + if (num == 256) { + lastDist = rOldDist[oldDistPtr++ & 3] = lastDist; + RarCopyString(lastLength, lastDist); + continue; + } + if (num < 261) { + const Distance = rOldDist[(oldDistPtr - (num - 256)) & 3]; + const LengthNumber = RarDecodeNumber(bstream, RD); + let Length = rLDecode[LengthNumber] +2; + if ((Bits = rLBits[LengthNumber]) > 0) { + Length += bstream.readBits(Bits); + } + if (Distance >= 0x101) { + Length++; + if (Distance >= 0x2000) { + Length++ + if (Distance >= 0x40000) { + Length++; + } + } + } + lastLength = Length; + lastDist = rOldDist[oldDistPtr++ & 3] = Distance; + RarCopyString(Length, Distance); + continue; + } + if (num < 270) { + let Distance = rSDDecode[num -= 261] + 1; + if ((Bits = rSDBits[num]) > 0) { + Distance += bstream.readBits(Bits); + } + lastLength = 2; + lastDist = rOldDist[oldDistPtr++ & 3] = Distance; + RarCopyString(2, Distance); + continue; + } + + } + RarUpdateProgress(); +} + +function RarUpdateProgress() { + const change = rBuffer.ptr - currentBytesUnarchivedInFile; + currentBytesUnarchivedInFile = rBuffer.ptr; + currentBytesUnarchived += change; + postProgress(); +} + +const rNC20 = 298; +const rDC20 = 48; +const rRC20 = 28; +const rBC20 = 19; +const rMC20 = 257; + +const UnpOldTable20 = new Array(rMC20 * 4); + +// TODO: This function should return a boolean value, see unpack20.cpp. +function RarReadTables20(bstream) { + const BitLength = new Array(rBC20); + const Table = new Array(rMC20 * 4); + let TableSize; + let N; + let I; + const AudioBlock = bstream.readBits(1); + if (!bstream.readBits(1)) { + for (let i = UnpOldTable20.length; i--;) { + UnpOldTable20[i] = 0; + } + } + TableSize = rNC20 + rDC20 + rRC20; + for (I = 0; I < rBC20; I++) { + BitLength[I] = bstream.readBits(4); + } + RarMakeDecodeTables(BitLength, 0, BD, rBC20); + I = 0; + while (I < TableSize) { + const num = RarDecodeNumber(bstream, BD); + if (num < 16) { + Table[I] = num + UnpOldTable20[I] & 0xf; + I++; + } else if (num == 16) { + N = bstream.readBits(2) + 3; + while (N-- > 0 && I < TableSize) { + Table[I] = Table[I - 1]; + I++; + } + } else { + if (num == 17) { + N = bstream.readBits(3) + 3; + } else { + N = bstream.readBits(7) + 11; + } + while (N-- > 0 && I < TableSize) { + Table[I++] = 0; + } + } + } + RarMakeDecodeTables(Table, 0, LD, rNC20); + RarMakeDecodeTables(Table, rNC20, DD, rDC20); + RarMakeDecodeTables(Table, rNC20 + rDC20, RD, rRC20); + for (let i = UnpOldTable20.length; i--;) { + UnpOldTable20[i] = Table[i]; + } +} + +let lowDistRepCount = 0; +let prevLowDist = 0; + +let rOldDist = [0,0,0,0]; +let lastDist; +let lastLength; + +// ============================================================================================== // + +// Unpack code specific to RarVM +const VM = new RarVM(); + +/** + * Filters code, one entry per filter. + * @type {Array} + */ +let Filters = []; + +/** + * Filters stack, several entrances of same filter are possible. + * @type {Array} + */ +let PrgStack = []; + +/** + * Lengths of preceding blocks, one length per filter. Used to reduce + * size required to write block length if lengths are repeating. + * @type {Array} + */ +let OldFilterLengths = []; + +let LastFilter = 0; + +function InitFilters() { + OldFilterLengths = []; + LastFilter = 0; + Filters = []; + PrgStack = []; +} + + +/** + * @param {number} firstByte The first byte (flags). + * @param {Uint8Array} vmCode An array of bytes. + */ +function RarAddVMCode(firstByte, vmCode) { + VM.init(); + const bstream = new bitjs.io.BitStream(vmCode.buffer, true /* rtl */); + + let filtPos; + if (firstByte & 0x80) { + filtPos = RarVM.readData(bstream); + if (filtPos == 0) { + InitFilters(); + } else { + filtPos--; + } + } else { + filtPos = LastFilter; + } + + if (filtPos > Filters.length || filtPos > OldFilterLengths.length) { + return false; + } + + LastFilter = filtPos; + const newFilter = (filtPos == Filters.length); + + // new filter for PrgStack + const stackFilter = new UnpackFilter(); + let filter = null; + // new filter code, never used before since VM reset + if (newFilter) { + // too many different filters, corrupt archive + if (filtPos > 1024) { + return false; + } + + filter = new UnpackFilter(); + Filters.push(filter); + stackFilter.ParentFilter = (Filters.length - 1); + OldFilterLengths.push(0); // OldFilterLengths.Add(1) + filter.ExecCount = 0; + } else { // filter was used in the past + filter = Filters[filtPos]; + stackFilter.ParentFilter = filtPos; + filter.ExecCount++; + } + + let emptyCount = 0; + for (let i = 0; i < PrgStack.length; ++i) { + PrgStack[i - emptyCount] = PrgStack[i]; + + if (PrgStack[i] == null) { + emptyCount++; + } + if (emptyCount > 0) { + PrgStack[i] = null; + } + } + + if (emptyCount == 0) { + PrgStack.push(null); //PrgStack.Add(1); + emptyCount = 1; + } + + const stackPos = PrgStack.length - emptyCount; + PrgStack[stackPos] = stackFilter; + stackFilter.ExecCount = filter.ExecCount; + + let blockStart = RarVM.readData(bstream); + if (firstByte & 0x40) { + blockStart += 258; + } + stackFilter.BlockStart = (blockStart + rBuffer.ptr) & MAXWINMASK; + + if (firstByte & 0x20) { + stackFilter.BlockLength = RarVM.readData(bstream); + } else { + stackFilter.BlockLength = filtPos < OldFilterLengths.length + ? OldFilterLengths[filtPos] + : 0; + } + stackFilter.NextWindow = (wBuffer.ptr != rBuffer.ptr) && + (((wBuffer.ptr - rBuffer.ptr) & MAXWINMASK) <= blockStart); + + OldFilterLengths[filtPos] = stackFilter.BlockLength; + + for (let i = 0; i < 7; ++i) { + stackFilter.Prg.InitR[i] = 0; + } + stackFilter.Prg.InitR[3] = VM_GLOBALMEMADDR; + stackFilter.Prg.InitR[4] = stackFilter.BlockLength; + stackFilter.Prg.InitR[5] = stackFilter.ExecCount; + + // set registers to optional parameters if any + if (firstByte & 0x10) { + const initMask = bstream.readBits(7); + for (let i = 0; i < 7; ++i) { + if (initMask & (1 << i)) { + stackFilter.Prg.InitR[i] = RarVM.readData(bstream); + } + } + } + + if (newFilter) { + const vmCodeSize = RarVM.readData(bstream); + if (vmCodeSize >= 0x10000 || vmCodeSize == 0) { + return false; + } + const vmCode = new Uint8Array(vmCodeSize); + for (let i = 0; i < vmCodeSize; ++i) { + //if (Inp.Overflow(3)) + // return(false); + vmCode[i] = bstream.readBits(8); + } + VM.prepare(vmCode, filter.Prg); + } + stackFilter.Prg.Cmd = filter.Prg.Cmd; + stackFilter.Prg.AltCmd = filter.Prg.Cmd; + + const staticDataSize = filter.Prg.StaticData.length; + if (staticDataSize > 0 && staticDataSize < VM_GLOBALMEMSIZE) { + // read statically defined data contained in DB commands + for (let i = 0; i < staticDataSize; ++i) { + stackFilter.Prg.StaticData[i] = filter.Prg.StaticData[i]; + } + } + + if (stackFilter.Prg.GlobalData.length < VM_FIXEDGLOBALSIZE) { + stackFilter.Prg.GlobalData = new Uint8Array(VM_FIXEDGLOBALSIZE); + } + + const globalData = stackFilter.Prg.GlobalData; + for (let i = 0; i < 7; ++i) { + VM.setLowEndianValue(globalData, stackFilter.Prg.InitR[i], i * 4); + } + + VM.setLowEndianValue(globalData, stackFilter.BlockLength, 0x1c); + VM.setLowEndianValue(globalData, 0, 0x20); + VM.setLowEndianValue(globalData, stackFilter.ExecCount, 0x2c); + for (let i = 0; i < 16; ++i) { + globalData[0x30 + i] = 0; + } + + // put data block passed as parameter if any + if (firstByte & 8) { + //if (Inp.Overflow(3)) + // return(false); + const dataSize = RarVM.readData(bstream); + if (dataSize > (VM_GLOBALMEMSIZE - VM_FIXEDGLOBALSIZE)) { + return false; + } + + const curSize = stackFilter.Prg.GlobalData.length; + if (curSize < dataSize + VM_FIXEDGLOBALSIZE) { + // Resize global data and update the stackFilter and local variable. + const numBytesToAdd = dataSize + VM_FIXEDGLOBALSIZE - curSize; + const newGlobalData = new Uint8Array(globalData.length + numBytesToAdd); + newGlobalData.set(globalData); + + stackFilter.Prg.GlobalData = newGlobalData; + globalData = newGlobalData; + } + //byte *GlobalData=&StackFilter->Prg.GlobalData[VM_FIXEDGLOBALSIZE]; + for (let i = 0; i < dataSize; ++i) { + //if (Inp.Overflow(3)) + // return(false); + globalData[VM_FIXEDGLOBALSIZE + i] = bstream.readBits(8); + } + } + + return true; +} + + +/** + * @param {!bitjs.io.BitStream} bstream + */ +function RarReadVMCode(bstream) { + const firstByte = bstream.readBits(8); + let length = (firstByte & 7) + 1; + if (length == 7) { + length = bstream.readBits(8) + 7; + } else if (length == 8) { + length = bstream.readBits(16); + } + + // Read all bytes of VM code into an array. + const vmCode = new Uint8Array(length); + for (let i = 0; i < length; i++) { + // Do something here with checking readbuf. + vmCode[i] = bstream.readBits(8); + } + return RarAddVMCode(firstByte, vmCode); +} + +/** + * Unpacks the bit stream into rBuffer using the Unpack29 algorithm. + * @param {bitjs.io.BitStream} bstream + * @param {boolean} Solid + */ +function Unpack29(bstream, Solid) { + // lazy initialize rDDecode and rDBits + + const DDecode = new Array(rDC); + const DBits = new Array(rDC); + + let Dist = 0; + let BitLength = 0; + let Slot = 0; + + for (let I = 0; I < rDBitLengthCounts.length; I++,BitLength++) { + for (let J = 0; J < rDBitLengthCounts[I]; J++,Slot++,Dist+=(1<= 271) { + let Length = rLDecode[num -= 271] + 3; + if ((Bits = rLBits[num]) > 0) { + Length += bstream.readBits(Bits); + } + const DistNumber = RarDecodeNumber(bstream, DD); + let Distance = DDecode[DistNumber] + 1; + if ((Bits = DBits[DistNumber]) > 0) { + if (DistNumber > 9) { + if (Bits > 4) { + Distance += ((bstream.getBits() >>> (20 - Bits)) << 4); + bstream.readBits(Bits - 4); + //todo: check this + } + if (lowDistRepCount > 0) { + lowDistRepCount--; + Distance += prevLowDist; + } else { + const LowDist = RarDecodeNumber(bstream, LDD); + if (LowDist == 16) { + lowDistRepCount = rLOW_DIST_REP_COUNT - 1; + Distance += prevLowDist; + } else { + Distance += LowDist; + prevLowDist = LowDist; + } + } + } else { + Distance += bstream.readBits(Bits); + } + } + if (Distance >= 0x2000) { + Length++; + if (Distance >= 0x40000) { + Length++; + } + } + RarInsertOldDist(Distance); + RarInsertLastMatch(Length, Distance); + RarCopyString(Length, Distance); + continue; + } + if (num == 256) { + if (!RarReadEndOfBlock(bstream)) { + break; + } + continue; + } + if (num == 257) { + if (!RarReadVMCode(bstream)) { + break; + } + continue; + } + if (num == 258) { + if (lastLength != 0) { + RarCopyString(lastLength, lastDist); + } + continue; + } + if (num < 263) { + const DistNum = num - 259; + const Distance = rOldDist[DistNum]; + + for (let I = DistNum; I > 0; I--) { + rOldDist[I] = rOldDist[I-1]; + } + rOldDist[0] = Distance; + + const LengthNumber = RarDecodeNumber(bstream, RD); + let Length = rLDecode[LengthNumber] + 2; + if ((Bits = rLBits[LengthNumber]) > 0) { + Length += bstream.readBits(Bits); + } + RarInsertLastMatch(Length, Distance); + RarCopyString(Length, Distance); + continue; + } + if (num < 272) { + let Distance = rSDDecode[num -= 263] + 1; + if ((Bits = rSDBits[num]) > 0) { + Distance += bstream.readBits(Bits); + } + RarInsertOldDist(Distance); + RarInsertLastMatch(2, Distance); + RarCopyString(2, Distance); + continue; + } + } // while (true) + RarUpdateProgress(); + RarWriteBuf(); +} + +/** + * Does stuff to the current byte buffer (rBuffer) based on + * the filters loaded into the RarVM and writes out to wBuffer. + */ +function RarWriteBuf() { + let writeSize = (rBuffer.ptr & MAXWINMASK); + + for (let i = 0; i < PrgStack.length; ++i) { + const flt = PrgStack[i]; + if (flt == null) { + continue; + } + + if (flt.NextWindow) { + flt.NextWindow = false; + continue; + } + + const blockStart = flt.BlockStart; + const blockLength = flt.BlockLength; + + // WrittenBorder = wBuffer.ptr + if (((blockStart - wBuffer.ptr) & MAXWINMASK) < writeSize) { + if (wBuffer.ptr != blockStart) { + // Copy blockStart bytes from rBuffer into wBuffer. + RarWriteArea(wBuffer.ptr, blockStart); + writeSize = (rBuffer.ptr - wBuffer.ptr) & MAXWINMASK; + } + if (blockLength <= writeSize) { + const blockEnd = (blockStart + blockLength) & MAXWINMASK; + if (blockStart < blockEnd || blockEnd == 0) { + VM.setMemory(0, rBuffer.data.subarray(blockStart, blockStart + blockLength), blockLength); + } else { + const firstPartLength = MAXWINSIZE - blockStart; + VM.setMemory(0, rBuffer.data.subarray(blockStart, blockStart + firstPartLength), firstPartLength); + VM.setMemory(firstPartLength, rBuffer.data, blockEnd); + } + + const parentPrg = Filters[flt.ParentFilter].Prg; + const prg = flt.Prg; + + if (parentPrg.GlobalData.length > VM_FIXEDGLOBALSIZE) { + // Copy global data from previous script execution if any. + prg.GlobalData = new Uint8Array(parentPrg.GlobalData); + } + + RarExecuteCode(prg); + + if (prg.GlobalData.length > VM_FIXEDGLOBALSIZE) { + // Save global data for next script execution. + const globalDataLen = prg.GlobalData.length; + if (parentPrg.GlobalData.length < globalDataLen) { + parentPrg.GlobalData = new Uint8Array(globalDataLen); + } + parentPrg.GlobalData.set( + this.mem_.subarray(VM_FIXEDGLOBALSIZE, VM_FIXEDGLOBALSIZE + globalDataLen), + VM_FIXEDGLOBALSIZE); + } else { + parentPrg.GlobalData = new Uint8Array(0); + } + + let filteredData = prg.FilteredData; + + PrgStack[i] = null; + while (i + 1 < PrgStack.length) { + const nextFilter = PrgStack[i + 1]; + if (nextFilter == null || nextFilter.BlockStart != blockStart || + nextFilter.BlockLength != filteredData.length || nextFilter.NextWindow) { + break; + } + + // Apply several filters to same data block. + + VM.setMemory(0, filteredData, filteredData.length); + + const innerParentPrg = Filters[nextFilter.ParentFilter].Prg; + const nextPrg = nextFilter.Prg; + + const globalDataLen = innerParentPrg.GlobalData.length; + if (globalDataLen > VM_FIXEDGLOBALSIZE) { + // Copy global data from previous script execution if any. + nextPrg.GlobalData = new Uint8Array(globalDataLen); + nextPrg.GlobalData.set(innerParentPrg.GlobalData.subarray(VM_FIXEDGLOBALSIZE, VM_FIXEDGLOBALSIZE + globalDataLen), VM_FIXEDGLOBALSIZE); + } + + RarExecuteCode(nextPrg); + + if (nextPrg.GlobalData.length > VM_GLOBALMEMSIZE) { + // Save global data for next script execution. + const globalDataLen = nextPrg.GlobalData.length; + if (innerParentPrg.GlobalData.length < globalDataLen) { + innerParentPrg.GlobalData = new Uint8Array(globalDataLen); + } + innerParentPrg.GlobalData.set( + this.mem_.subarray(VM_FIXEDGLOBALSIZE, VM_FIXEDGLOBALSIZE + globalDataLen), + VM_FIXEDGLOBALSIZE); + } else { + innerParentPrg.GlobalData = new Uint8Array(0); + } + + filteredData = nextPrg.FilteredData; + i++; + PrgStack[i] = null; + } // while (i + 1 < PrgStack.length) + + for (let j = 0; j < filteredData.length; ++j) { + wBuffer.insertByte(filteredData[j]); + } + writeSize = (rBuffer.ptr - wBuffer.ptr) & MAXWINMASK; + } // if (blockLength <= writeSize) + else { + for (let j = i; j < PrgStack.length; ++j) { + const theFlt = PrgStack[j]; + if (theFlt != null && theFlt.NextWindow) { + theFlt.NextWindow = false; + } + } + return; + } + } // if (((blockStart - wBuffer.ptr) & MAXWINMASK) < writeSize) + } // for (let i = 0; i < PrgStack.length; ++i) + + // Write any remaining bytes from rBuffer to wBuffer; + RarWriteArea(wBuffer.ptr, rBuffer.ptr); + + // Now that the filtered buffer has been written, swap it back to rBuffer. + rBuffer = wBuffer; +} + +/** + * Copy bytes from rBuffer to wBuffer. + * @param {number} startPtr The starting point to copy from rBuffer. + * @param {number} endPtr The ending point to copy from rBuffer. + */ +function RarWriteArea(startPtr, endPtr) { + if (endPtr < startPtr) { + console.error('endPtr < startPtr, endPtr=' + endPtr + ', startPtr=' + startPtr); +// RarWriteData(startPtr, -(int)StartPtr & MAXWINMASK); +// RarWriteData(0, endPtr); + return; + } else if (startPtr < endPtr) { + RarWriteData(startPtr, endPtr - startPtr); + } +} + +/** + * Writes bytes into wBuffer from rBuffer. + * @param {number} offset The starting point to copy bytes from rBuffer. + * @param {number} numBytes The number of bytes to copy. + */ +function RarWriteData(offset, numBytes) { + if (wBuffer.ptr >= rBuffer.data.length) { + return; + } + const leftToWrite = rBuffer.data.length - wBuffer.ptr; + if (numBytes > leftToWrite) { + numBytes = leftToWrite; + } + for (let i = 0; i < numBytes; ++i) { + wBuffer.insertByte(rBuffer.data[offset + i]); + } +} + +/** + * @param {VM_PreparedProgram} prg + */ +function RarExecuteCode(prg) +{ + if (prg.GlobalData.length > 0) { + const writtenFileSize = wBuffer.ptr; + prg.InitR[6] = writtenFileSize; + VM.setLowEndianValue(prg.GlobalData, writtenFileSize, 0x24); + VM.setLowEndianValue(prg.GlobalData, (writtenFileSize >>> 32) >> 0, 0x28); + VM.execute(prg); + } +} + +function RarReadEndOfBlock(bstream) { + RarUpdateProgress(); + + let NewTable = false; + let NewFile = false; + if (bstream.readBits(1)) { + NewTable = true; + } else { + NewFile = true; + NewTable = !!bstream.readBits(1); + } + //tablesRead = !NewTable; + return !(NewFile || NewTable && !RarReadTables(bstream)); +} + +function RarInsertLastMatch(length, distance) { + lastDist = distance; + lastLength = length; +} + +function RarInsertOldDist(distance) { + rOldDist.splice(3,1); + rOldDist.splice(0,0,distance); +} + +/** + * Copies len bytes from distance bytes ago in the buffer to the end of the + * current byte buffer. + * @param {number} length How many bytes to copy. + * @param {number} distance How far back in the buffer from the current write + * pointer to start copying from. + */ +function RarCopyString(len, distance) { + let srcPtr = rBuffer.ptr - distance; + // If we need to go back to previous buffers, then seek back. + if (srcPtr < 0) { + let l = rOldBuffers.length; + while (srcPtr < 0) { + srcPtr = rOldBuffers[--l].data.length + srcPtr; + } + // TODO: lets hope that it never needs to read across buffer boundaries + while (len--) { + rBuffer.insertByte(rOldBuffers[l].data[srcPtr++]); + } + } + if (len > distance) { + while (len--) { + rBuffer.insertByte(rBuffer.data[srcPtr++]); + } + } else { + rBuffer.insertBytes(rBuffer.data.subarray(srcPtr, srcPtr + len)); + } +} + +/** + * @param {RarLocalFile} v + */ +function unpack(v) { + // TODO: implement what happens when unpVer is < 15 + const Ver = v.header.unpVer <= 15 ? 15 : v.header.unpVer; + const Solid = v.header.flags.LHD_SOLID; + const bstream = new bitjs.io.BitStream(v.fileData.buffer, true /* rtl */, v.fileData.byteOffset, v.fileData.byteLength ); + + rBuffer = new bitjs.io.ByteBuffer(v.header.unpackedSize); + + info("Unpacking " + v.filename + " RAR v" + Ver); + + switch (Ver) { + case 15: // rar 1.5 compression + Unpack15(bstream, Solid); + break; + case 20: // rar 2.x compression + case 26: // files larger than 2GB + Unpack20(bstream, Solid); + break; + case 29: // rar 3.x compression + case 36: // alternative hash + wBuffer = new bitjs.io.ByteBuffer(rBuffer.data.length); + Unpack29(bstream, Solid); + break; + } // switch(method) + + rOldBuffers.push(rBuffer); + // TODO: clear these old buffers when there's over 4MB of history + return rBuffer.data; +} + +/** + */ +class RarLocalFile { + /** + * @param {bitjs.io.BitStream} bstream + */ + constructor(bstream) { + this.header = new RarVolumeHeader(bstream); + this.filename = this.header.filename; + + if (this.header.headType != FILE_HEAD && this.header.headType != ENDARC_HEAD) { + this.isValid = false; + info("Error! RAR Volume did not include a FILE_HEAD header "); + } + else { + // read in the compressed data + this.fileData = null; + if (this.header.packSize > 0) { + this.fileData = bstream.readBytes(this.header.packSize); + this.isValid = true; + } + } + } + + unrar() { + if (!this.header.flags.LHD_SPLIT_BEFORE) { + // unstore file + if (this.header.method == 0x30) { + info("Unstore "+this.filename); + this.isValid = true; + + currentBytesUnarchivedInFile += this.fileData.length; + currentBytesUnarchived += this.fileData.length; + + // Create a new buffer and copy it over. + const len = this.header.packSize; + const newBuffer = new bitjs.io.ByteBuffer(len); + newBuffer.insertBytes(this.fileData); + this.fileData = newBuffer.data; + } else { + this.isValid = true; + this.fileData = unpack(this); + } + } + } +} + +const unrar = function(arrayBuffer) { + currentFilename = ""; + currentFileNumber = 0; + currentBytesUnarchivedInFile = 0; + currentBytesUnarchived = 0; + totalUncompressedBytesInArchive = 0; + totalFilesInArchive = 0; + + postMessage(new bitjs.archive.UnarchiveStartEvent()); + const bstream = new bitjs.io.BitStream(arrayBuffer, false /* rtl */); + + const header = new RarVolumeHeader(bstream); + if (header.crc == 0x6152 && + header.headType == 0x72 && + header.flags.value == 0x1A21 && + header.headSize == 7) { + info("Found RAR signature"); + + const mhead = new RarVolumeHeader(bstream); + if (mhead.headType != MAIN_HEAD) { + info("Error! RAR did not include a MAIN_HEAD header"); + } + else { + let localFiles = []; + let localFile = null; + do { + try { + localFile = new RarLocalFile(bstream); + info("RAR localFile isValid=" + localFile.isValid + ", volume packSize=" + localFile.header.packSize); + if (localFile && localFile.isValid && localFile.header.packSize > 0) { + totalUncompressedBytesInArchive += localFile.header.unpackedSize; + localFiles.push(localFile); + } else if (localFile.header.packSize == 0 && localFile.header.unpackedSize == 0) { + localFile.isValid = true; + } + } catch(err) { + break; + } + //info("bstream" + bstream.bytePtr+"/"+bstream.bytes.length); + } while (localFile.isValid); + totalFilesInArchive = localFiles.length; + + // now we have all information but things are unpacked + localFiles = localFiles.sort((a,b) => a.filename.toLowerCase() > b.filename.toLowerCase() ? 1 : -1); + + info(localFiles.map(function(a){return a.filename}).join(', ')); + for (let i = 0; i < localFiles.length; ++i) { + const localfile = localFiles[i]; + + // update progress + currentFilename = localfile.header.filename; + currentBytesUnarchivedInFile = 0; + + // actually do the unzipping + localfile.unrar(); + + if (localfile.isValid) { + postMessage(new bitjs.archive.UnarchiveExtractEvent(localfile)); + postProgress(); + } + } + + postProgress(); + } + } + else { + err("Invalid RAR file"); + } + postMessage(new bitjs.archive.UnarchiveFinishEvent()); +}; + +// event.data.file has the ArrayBuffer. +onmessage = function(event) { + const ab = event.data.file; + unrar(ab, true); +}; diff --git a/vendor/bitjs/archive/untar.js b/vendor/bitjs/archive/untar.js new file mode 100644 index 0000000..24cabf9 --- /dev/null +++ b/vendor/bitjs/archive/untar.js @@ -0,0 +1,168 @@ +/** + * untar.js + * + * Licensed under the MIT License + * + * Copyright(c) 2011 Google Inc. + * + * Reference Documentation: + * + * TAR format: http://www.gnu.org/software/automake/manual/tar/Standard.html + */ + +// This file expects to be invoked as a Worker (see onmessage below). +importScripts('../io/bytestream.js'); +importScripts('archive.js'); + +// Progress variables. +let currentFilename = ""; +let currentFileNumber = 0; +let currentBytesUnarchivedInFile = 0; +let currentBytesUnarchived = 0; +let totalUncompressedBytesInArchive = 0; +let totalFilesInArchive = 0; + +// Helper functions. +const info = function(str) { + postMessage(new bitjs.archive.UnarchiveInfoEvent(str)); +}; +const err = function(str) { + postMessage(new bitjs.archive.UnarchiveErrorEvent(str)); +}; +const postProgress = function() { + postMessage(new bitjs.archive.UnarchiveProgressEvent( + currentFilename, + currentFileNumber, + currentBytesUnarchivedInFile, + currentBytesUnarchived, + totalUncompressedBytesInArchive, + totalFilesInArchive)); +}; + +// Removes all characters from the first zero-byte in the string onwards. +const readCleanString = function(bstr, numBytes) { + const str = bstr.readString(numBytes); + const zIndex = str.indexOf(String.fromCharCode(0)); + return zIndex != -1 ? str.substr(0, zIndex) : str; +}; + +class TarLocalFile { + // takes a ByteStream and parses out the local file information + constructor(bstream) { + this.isValid = false; + + // Read in the header block + this.name = readCleanString(bstream, 100); + this.mode = readCleanString(bstream, 8); + this.uid = readCleanString(bstream, 8); + this.gid = readCleanString(bstream, 8); + this.size = parseInt(readCleanString(bstream, 12), 8); + this.mtime = readCleanString(bstream, 12); + this.chksum = readCleanString(bstream, 8); + this.typeflag = readCleanString(bstream, 1); + this.linkname = readCleanString(bstream, 100); + this.maybeMagic = readCleanString(bstream, 6); + + if (this.maybeMagic == "ustar") { + this.version = readCleanString(bstream, 2); + this.uname = readCleanString(bstream, 32); + this.gname = readCleanString(bstream, 32); + this.devmajor = readCleanString(bstream, 8); + this.devminor = readCleanString(bstream, 8); + this.prefix = readCleanString(bstream, 155); + + if (this.prefix.length) { + this.name = this.prefix + this.name; + } + bstream.readBytes(12); // 512 - 500 + } else { + bstream.readBytes(255); // 512 - 257 + } + + // Done header, now rest of blocks are the file contents. + this.filename = this.name; + this.fileData = null; + + info("Untarring file '" + this.filename + "'"); + info(" size = " + this.size); + info(" typeflag = " + this.typeflag); + + // A regular file. + if (this.typeflag == 0) { + info(" This is a regular file."); + const sizeInBytes = parseInt(this.size); + this.fileData = new Uint8Array(bstream.readBytes(sizeInBytes)); + if (this.name.length > 0 && this.size > 0 && this.fileData && this.fileData.buffer) { + this.isValid = true; + } + + bstream.readBytes(this.size); + + // Round up to 512-byte blocks. + const remaining = 512 - bstream.ptr % 512; + if (remaining > 0 && remaining < 512) { + bstream.readBytes(remaining); + } + } else if (this.typeflag == 5) { + info(" This is a directory.") + } + } +} + +// Takes an ArrayBuffer of a tar file in +// returns null on error +// returns an array of DecompressedFile objects on success +const untar = function(arrayBuffer) { + currentFilename = ""; + currentFileNumber = 0; + currentBytesUnarchivedInFile = 0; + currentBytesUnarchived = 0; + totalUncompressedBytesInArchive = 0; + totalFilesInArchive = 0; + + postMessage(new bitjs.archive.UnarchiveStartEvent()); + const bstream = new bitjs.io.ByteStream(arrayBuffer); + const localFiles = []; + + // While we don't encounter an empty block, keep making TarLocalFiles. + while (bstream.peekNumber(4) != 0) { + const oneLocalFile = new TarLocalFile(bstream); + if (oneLocalFile && oneLocalFile.isValid) { + localFiles.push(oneLocalFile); + totalUncompressedBytesInArchive += oneLocalFile.size; + } + } + totalFilesInArchive = localFiles.length; + + // got all local files, now sort them + localFiles.sort((a,b) => a.filename > b.filename ? 1 : -1); + + // report # files and total length + if (localFiles.length > 0) { + postProgress(); + } + + // now do the shipping of each file + for (let i = 0; i < localFiles.length; ++i) { + const localfile = localFiles[i]; + info("Sending file '" + localfile.filename + "' up"); + + // update progress + currentFilename = localfile.filename; + currentFileNumber = i; + currentBytesUnarchivedInFile = localfile.size; + currentBytesUnarchived += localfile.size; + postMessage(new bitjs.archive.UnarchiveExtractEvent(localfile)); + postProgress(); + } + + postProgress(); + + postMessage(new bitjs.archive.UnarchiveFinishEvent()); +}; + +// event.data.file has the ArrayBuffer. +onmessage = function(event) { + const ab = event.data.file; + untar(ab); +}; diff --git a/vendor/bitjs/archive/unzip.js b/vendor/bitjs/archive/unzip.js new file mode 100644 index 0000000..7d7234f --- /dev/null +++ b/vendor/bitjs/archive/unzip.js @@ -0,0 +1,1467 @@ +/** + * unzip.js + * + * Licensed under the MIT License + * + * Copyright(c) 2011 Google Inc. + * Copyright(c) 2011 antimatter15 + * + * Reference Documentation: + * + * ZIP format: http://www.pkware.com/documents/casestudies/APPNOTE.TXT + * DEFLATE format: http://tools.ietf.org/html/rfc1951 + */ + +// This file expects to be invoked as a Worker (see onmessage below). +// ... +// ... but importScripts does not work when CSP2 nonce is active, so inline these instead... +//importScripts('../io/bitstream.js'); +// + +/* + * bitstream.js + * + * Provides readers for bitstreams. + * + * Licensed under the MIT License + * + * Copyright(c) 2011 Google Inc. + * Copyright(c) 2011 antimatter15 + */ + +var bitjs = bitjs || {}; +bitjs.io = bitjs.io || {}; + + +/** + * This bit stream peeks and consumes bits out of a binary stream. + */ +bitjs.io.BitStream = class { + /** + * @param {ArrayBuffer} ab An ArrayBuffer object or a Uint8Array. + * @param {boolean} rtl Whether the stream reads bits from the byte starting + * from bit 7 to 0 (true) or bit 0 to 7 (false). + * @param {Number} opt_offset The offset into the ArrayBuffer + * @param {Number} opt_length The length of this BitStream + */ + constructor(ab, rtl, opt_offset, opt_length) { + if (!ab || !ab.toString || ab.toString() !== "[object ArrayBuffer]") { + throw "Error! BitArray constructed with an invalid ArrayBuffer object"; + } + + const offset = opt_offset || 0; + const length = opt_length || ab.byteLength; + this.bytes = new Uint8Array(ab, offset, length); + this.bytePtr = 0; // tracks which byte we are on + this.bitPtr = 0; // tracks which bit we are on (can have values 0 through 7) + this.peekBits = rtl ? this.peekBits_rtl : this.peekBits_ltr; + } + + /** + * byte0 byte1 byte2 byte3 + * 7......0 | 7......0 | 7......0 | 7......0 + * + * The bit pointer starts at bit0 of byte0 and moves left until it reaches + * bit7 of byte0, then jumps to bit0 of byte1, etc. + * @param {number} n The number of bits to peek. + * @param {boolean=} movePointers Whether to move the pointer, defaults false. + * @return {number} The peeked bits, as an unsigned number. + */ + peekBits_ltr(n, opt_movePointers) { + if (n <= 0 || typeof n != typeof 1) { + return 0; + } + + const movePointers = opt_movePointers || false; + const bytes = this.bytes; + let bytePtr = this.bytePtr; + let bitPtr = this.bitPtr; + let result = 0; + let bitsIn = 0; + + // keep going until we have no more bits left to peek at + // TODO: Consider putting all bits from bytes we will need into a variable and then + // shifting/masking it to just extract the bits we want. + // This could be considerably faster when reading more than 3 or 4 bits at a time. + while (n > 0) { + if (bytePtr >= bytes.length) { + throw "Error! Overflowed the bit stream! n=" + n + ", bytePtr=" + bytePtr + ", bytes.length=" + + bytes.length + ", bitPtr=" + bitPtr; + return -1; + } + + const numBitsLeftInThisByte = (8 - bitPtr); + if (n >= numBitsLeftInThisByte) { + const mask = (bitjs.io.BitStream.BITMASK[numBitsLeftInThisByte] << bitPtr); + result |= (((bytes[bytePtr] & mask) >> bitPtr) << bitsIn); + + bytePtr++; + bitPtr = 0; + bitsIn += numBitsLeftInThisByte; + n -= numBitsLeftInThisByte; + } + else { + const mask = (bitjs.io.BitStream.BITMASK[n] << bitPtr); + result |= (((bytes[bytePtr] & mask) >> bitPtr) << bitsIn); + + bitPtr += n; + bitsIn += n; + n = 0; + } + } + + if (movePointers) { + this.bitPtr = bitPtr; + this.bytePtr = bytePtr; + } + + return result; + } + + /** + * byte0 byte1 byte2 byte3 + * 7......0 | 7......0 | 7......0 | 7......0 + * + * The bit pointer starts at bit7 of byte0 and moves right until it reaches + * bit0 of byte0, then goes to bit7 of byte1, etc. + * @param {number} n The number of bits to peek. + * @param {boolean=} movePointers Whether to move the pointer, defaults false. + * @return {number} The peeked bits, as an unsigned number. + */ + peekBits_rtl(n, opt_movePointers) { + if (n <= 0 || typeof n != typeof 1) { + return 0; + } + + const movePointers = opt_movePointers || false; + const bytes = this.bytes; + let bytePtr = this.bytePtr; + let bitPtr = this.bitPtr; + let result = 0; + + // keep going until we have no more bits left to peek at + // TODO: Consider putting all bits from bytes we will need into a variable and then + // shifting/masking it to just extract the bits we want. + // This could be considerably faster when reading more than 3 or 4 bits at a time. + while (n > 0) { + if (bytePtr >= bytes.length) { + throw "Error! Overflowed the bit stream! n=" + n + ", bytePtr=" + bytePtr + ", bytes.length=" + + bytes.length + ", bitPtr=" + bitPtr; + return -1; + } + + const numBitsLeftInThisByte = (8 - bitPtr); + if (n >= numBitsLeftInThisByte) { + result <<= numBitsLeftInThisByte; + result |= (bitjs.io.BitStream.BITMASK[numBitsLeftInThisByte] & bytes[bytePtr]); + bytePtr++; + bitPtr = 0; + n -= numBitsLeftInThisByte; + } + else { + result <<= n; + result |= ((bytes[bytePtr] & (bitjs.io.BitStream.BITMASK[n] << (8 - n - bitPtr))) >> (8 - n - bitPtr)); + + bitPtr += n; + n = 0; + } + } + + if (movePointers) { + this.bitPtr = bitPtr; + this.bytePtr = bytePtr; + } + + return result; + } + + /** + * Peek at 16 bits from current position in the buffer. + * Bit at (bytePtr,bitPtr) has the highest position in returning data. + * Taken from getbits.hpp in unrar. + * TODO: Move this out of BitStream and into unrar. + */ + getBits() { + return (((((this.bytes[this.bytePtr] & 0xff) << 16) + + ((this.bytes[this.bytePtr+1] & 0xff) << 8) + + ((this.bytes[this.bytePtr+2] & 0xff))) >>> (8-this.bitPtr)) & 0xffff); + } + + /** + * Reads n bits out of the stream, consuming them (moving the bit pointer). + * @param {number} n The number of bits to read. + * @return {number} The read bits, as an unsigned number. + */ + readBits(n) { + return this.peekBits(n, true); + } + + /** + * This returns n bytes as a sub-array, advancing the pointer if movePointers + * is true. Only use this for uncompressed blocks as this throws away remaining + * bits in the current byte. + * @param {number} n The number of bytes to peek. + * @param {boolean=} movePointers Whether to move the pointer, defaults false. + * @return {Uint8Array} The subarray. + */ + peekBytes(n, opt_movePointers) { + if (n <= 0 || typeof n != typeof 1) { + return 0; + } + + // from http://tools.ietf.org/html/rfc1951#page-11 + // "Any bits of input up to the next byte boundary are ignored." + while (this.bitPtr != 0) { + this.readBits(1); + } + + const movePointers = opt_movePointers || false; + let bytePtr = this.bytePtr; + let bitPtr = this.bitPtr; + + const result = this.bytes.subarray(bytePtr, bytePtr + n); + + if (movePointers) { + this.bytePtr += n; + } + + return result; + } + + /** + * @param {number} n The number of bytes to read. + * @return {Uint8Array} The subarray. + */ + readBytes(n) { + return this.peekBytes(n, true); + } +} + +// mask for getting N number of bits (0-8) +bitjs.io.BitStream.BITMASK = [0, 0x01, 0x03, 0x07, 0x0F, 0x1F, 0x3F, 0x7F, 0xFF ]; + +//importScripts('../io/bytebuffer.js'); +// + +/* + * bytestream.js + * + * Provides a writer for bytes. + * + * Licensed under the MIT License + * + * Copyright(c) 2011 Google Inc. + * Copyright(c) 2011 antimatter15 + */ + +var bitjs = bitjs || {}; +bitjs.io = bitjs.io || {}; + + +/** + * A write-only Byte buffer which uses a Uint8 Typed Array as a backing store. + */ +bitjs.io.ByteBuffer = class { + /** + * @param {number} numBytes The number of bytes to allocate. + */ + constructor(numBytes) { + if (typeof numBytes != typeof 1 || numBytes <= 0) { + throw "Error! ByteBuffer initialized with '" + numBytes + "'"; + } + this.data = new Uint8Array(numBytes); + this.ptr = 0; + } + + + /** + * @param {number} b The byte to insert. + */ + insertByte(b) { + // TODO: throw if byte is invalid? + this.data[this.ptr++] = b; + } + + /** + * @param {Array.|Uint8Array|Int8Array} bytes The bytes to insert. + */ + insertBytes(bytes) { + // TODO: throw if bytes is invalid? + this.data.set(bytes, this.ptr); + this.ptr += bytes.length; + } + + /** + * Writes an unsigned number into the next n bytes. If the number is too large + * to fit into n bytes or is negative, an error is thrown. + * @param {number} num The unsigned number to write. + * @param {number} numBytes The number of bytes to write the number into. + */ + writeNumber(num, numBytes) { + if (numBytes < 1) { + throw 'Trying to write into too few bytes: ' + numBytes; + } + if (num < 0) { + throw 'Trying to write a negative number (' + num + + ') as an unsigned number to an ArrayBuffer'; + } + if (num > (Math.pow(2, numBytes * 8) - 1)) { + throw 'Trying to write ' + num + ' into only ' + numBytes + ' bytes'; + } + + // Roll 8-bits at a time into an array of bytes. + const bytes = []; + while (numBytes-- > 0) { + const eightBits = num & 255; + bytes.push(eightBits); + num >>= 8; + } + + this.insertBytes(bytes); + } + + /** + * Writes a signed number into the next n bytes. If the number is too large + * to fit into n bytes, an error is thrown. + * @param {number} num The signed number to write. + * @param {number} numBytes The number of bytes to write the number into. + */ + writeSignedNumber(num, numBytes) { + if (numBytes < 1) { + throw 'Trying to write into too few bytes: ' + numBytes; + } + + const HALF = Math.pow(2, (numBytes * 8) - 1); + if (num >= HALF || num < -HALF) { + throw 'Trying to write ' + num + ' into only ' + numBytes + ' bytes'; + } + + // Roll 8-bits at a time into an array of bytes. + const bytes = []; + while (numBytes-- > 0) { + const eightBits = num & 255; + bytes.push(eightBits); + num >>= 8; + } + + this.insertBytes(bytes); + } + + /** + * @param {string} str The ASCII string to write. + */ + writeASCIIString(str) { + for (let i = 0; i < str.length; ++i) { + const curByte = str.charCodeAt(i); + if (curByte < 0 || curByte > 255) { + throw 'Trying to write a non-ASCII string!'; + } + this.insertByte(curByte); + } + }; +} +//importScripts('../io/bytestream.js'); +// + +/* + * bytestream.js + * + * Provides readers for byte streams. + * + * Licensed under the MIT License + * + * Copyright(c) 2011 Google Inc. + * Copyright(c) 2011 antimatter15 + */ + +var bitjs = bitjs || {}; +bitjs.io = bitjs.io || {}; + + +/** + * This object allows you to peek and consume bytes as numbers and strings + * out of an ArrayBuffer. In this buffer, everything must be byte-aligned. + */ +bitjs.io.ByteStream = class { + /** + * @param {ArrayBuffer} ab The ArrayBuffer object. + * @param {number=} opt_offset The offset into the ArrayBuffer + * @param {number=} opt_length The length of this BitStream + */ + constructor(ab, opt_offset, opt_length) { + const offset = opt_offset || 0; + const length = opt_length || ab.byteLength; + this.bytes = new Uint8Array(ab, offset, length); + this.ptr = 0; + } + + + /** + * Peeks at the next n bytes as an unsigned number but does not advance the + * pointer + * TODO: This apparently cannot read more than 4 bytes as a number? + * @param {number} n The number of bytes to peek at. + * @return {number} The n bytes interpreted as an unsigned number. + */ + peekNumber(n) { + // TODO: return error if n would go past the end of the stream? + if (n <= 0 || typeof n != typeof 1) { + return -1; + } + + let result = 0; + // read from last byte to first byte and roll them in + let curByte = this.ptr + n - 1; + while (curByte >= this.ptr) { + result <<= 8; + result |= this.bytes[curByte]; + --curByte; + } + return result; + } + + + /** + * Returns the next n bytes as an unsigned number (or -1 on error) + * and advances the stream pointer n bytes. + * @param {number} n The number of bytes to read. + * @return {number} The n bytes interpreted as an unsigned number. + */ + readNumber(n) { + const num = this.peekNumber( n ); + this.ptr += n; + return num; + } + + + /** + * Returns the next n bytes as a signed number but does not advance the + * pointer. + * @param {number} n The number of bytes to read. + * @return {number} The bytes interpreted as a signed number. + */ + peekSignedNumber(n) { + let num = this.peekNumber(n); + const HALF = Math.pow(2, (n * 8) - 1); + const FULL = HALF * 2; + + if (num >= HALF) num -= FULL; + + return num; + } + + + /** + * Returns the next n bytes as a signed number and advances the stream pointer. + * @param {number} n The number of bytes to read. + * @return {number} The bytes interpreted as a signed number. + */ + readSignedNumber(n) { + const num = this.peekSignedNumber(n); + this.ptr += n; + return num; + } + + + /** + * This returns n bytes as a sub-array, advancing the pointer if movePointers + * is true. + * @param {number} n The number of bytes to read. + * @param {boolean} movePointers Whether to move the pointers. + * @return {Uint8Array} The subarray. + */ + peekBytes(n, movePointers) { + if (n <= 0 || typeof n != typeof 1) { + return null; + } + + const result = this.bytes.subarray(this.ptr, this.ptr + n); + + if (movePointers) { + this.ptr += n; + } + + return result; + } + + /** + * Reads the next n bytes as a sub-array. + * @param {number} n The number of bytes to read. + * @return {Uint8Array} The subarray. + */ + readBytes(n) { + return this.peekBytes(n, true); + } + + /** + * Peeks at the next n bytes as a string but does not advance the pointer. + * @param {number} n The number of bytes to peek at. + * @return {string} The next n bytes as a string. + */ + peekString(n) { + if (n <= 0 || typeof n != typeof 1) { + return ""; + } + + let result = ""; + for (let p = this.ptr, end = this.ptr + n; p < end; ++p) { + result += String.fromCharCode(this.bytes[p]); + } + return result; + } + + /** + * Returns the next n bytes as an ASCII string and advances the stream pointer + * n bytes. + * @param {number} n The number of bytes to read. + * @return {string} The next n bytes as a string. + */ + readString(n) { + const strToReturn = this.peekString(n); + this.ptr += n; + return strToReturn; + } +} +//importScripts('archive.js'); +// + +/** + * archive.js + * + * Provides base functionality for unarchiving. + * + * Licensed under the MIT License + * + * Copyright(c) 2011 Google Inc. + */ + +var bitjs = bitjs || {}; +bitjs.archive = bitjs.archive || {}; + +/** + * An unarchive event. + */ +bitjs.archive.UnarchiveEvent = class { + /** + * @param {string} type The event type. + */ + constructor(type) { + /** + * The event type. + * @type {string} + */ + this.type = type; + } +} + +/** + * The UnarchiveEvent types. + */ +bitjs.archive.UnarchiveEvent.Type = { + START: 'start', + PROGRESS: 'progress', + EXTRACT: 'extract', + FINISH: 'finish', + INFO: 'info', + ERROR: 'error' +}; + +/** + * Useful for passing info up to the client (for debugging). + */ +bitjs.archive.UnarchiveInfoEvent = class extends bitjs.archive.UnarchiveEvent { + /** + * @param {string} msg The info message. + */ + constructor(msg) { + super(bitjs.archive.UnarchiveEvent.Type.INFO); + + /** + * The information message. + * @type {string} + */ + this.msg = msg; + } +} + +/** + * An unrecoverable error has occured. + */ +bitjs.archive.UnarchiveErrorEvent = class extends bitjs.archive.UnarchiveEvent { + /** + * @param {string} msg The error message. + */ + constructor(msg) { + super(bitjs.archive.UnarchiveEvent.Type.ERROR); + + /** + * The information message. + * @type {string} + */ + this.msg = msg; + } +} + +/** + * Start event. + */ +bitjs.archive.UnarchiveStartEvent = class extends bitjs.archive.UnarchiveEvent { + constructor() { + super(bitjs.archive.UnarchiveEvent.Type.START); + } +} + +/** + * Finish event. + */ +bitjs.archive.UnarchiveFinishEvent = class extends bitjs.archive.UnarchiveEvent { + constructor() { + super(bitjs.archive.UnarchiveEvent.Type.FINISH); + } +} + +/** + * Progress event. + */ +bitjs.archive.UnarchiveProgressEvent = class extends bitjs.archive.UnarchiveEvent { + /** + * @param {string} currentFilename + * @param {number} currentFileNumber + * @param {number} currentBytesUnarchivedInFile + * @param {number} currentBytesUnarchived + * @param {number} totalUncompressedBytesInArchive + * @param {number} totalFilesInArchive + */ + constructor(currentFilename, currentFileNumber, currentBytesUnarchivedInFile, + currentBytesUnarchived, totalUncompressedBytesInArchive, totalFilesInArchive) { + super(bitjs.archive.UnarchiveEvent.Type.PROGRESS); + + this.currentFilename = currentFilename; + this.currentFileNumber = currentFileNumber; + this.currentBytesUnarchivedInFile = currentBytesUnarchivedInFile; + this.totalFilesInArchive = totalFilesInArchive; + this.currentBytesUnarchived = currentBytesUnarchived; + this.totalUncompressedBytesInArchive = totalUncompressedBytesInArchive; + } +} + +/** + * Extract event. + */ +bitjs.archive.UnarchiveExtractEvent = class extends bitjs.archive.UnarchiveEvent { + /** + * @param {UnarchivedFile} unarchivedFile + */ + constructor(unarchivedFile) { + super(bitjs.archive.UnarchiveEvent.Type.EXTRACT); + + /** + * @type {UnarchivedFile} + */ + this.unarchivedFile = unarchivedFile; + } +} + +/** + * All extracted files returned by an Unarchiver will implement + * the following interface: + * + * interface UnarchivedFile { + * string filename + * TypedArray fileData + * } + * + */ + +/** + * Base class for all Unarchivers. + */ +bitjs.archive.Unarchiver = class { + /** + * @param {ArrayBuffer} arrayBuffer The Array Buffer. + * @param {string} opt_pathToBitJS Optional string for where the BitJS files are located. + */ + constructor(arrayBuffer, opt_pathToBitJS) { + /** + * The ArrayBuffer object. + * @type {ArrayBuffer} + * @protected + */ + this.ab = arrayBuffer; + + /** + * The path to the BitJS files. + * @type {string} + * @private + */ + this.pathToBitJS_ = opt_pathToBitJS || '/'; + + /** + * A map from event type to an array of listeners. + * @type {Map.} + */ + this.listeners_ = {}; + for (let type in bitjs.archive.UnarchiveEvent.Type) { + this.listeners_[bitjs.archive.UnarchiveEvent.Type[type]] = []; + } + + /** + * Private web worker initialized during start(). + * @type {Worker} + * @private + */ + this.worker_ = null; + } + + /** + * This method must be overridden by the subclass to return the script filename. + * @return {string} The script filename. + * @protected. + */ + getScriptFileName() { + throw 'Subclasses of AbstractUnarchiver must overload getScriptFileName()'; + } + + /** + * Adds an event listener for UnarchiveEvents. + * + * @param {string} Event type. + * @param {function} An event handler function. + */ + addEventListener(type, listener) { + if (type in this.listeners_) { + if (this.listeners_[type].indexOf(listener) == -1) { + this.listeners_[type].push(listener); + } + } + } + + /** + * Removes an event listener. + * + * @param {string} Event type. + * @param {EventListener|function} An event listener or handler function. + */ + removeEventListener(type, listener) { + if (type in this.listeners_) { + const index = this.listeners_[type].indexOf(listener); + if (index != -1) { + this.listeners_[type].splice(index, 1); + } + } + } + + /** + * Receive an event and pass it to the listener functions. + * + * @param {bitjs.archive.UnarchiveEvent} e + * @private + */ + handleWorkerEvent_(e) { + if ((e instanceof bitjs.archive.UnarchiveEvent || e.type) && + this.listeners_[e.type] instanceof Array) { + this.listeners_[e.type].forEach(function (listener) { listener(e) }); + if (e.type == bitjs.archive.UnarchiveEvent.Type.FINISH) { + this.worker_.terminate(); + } + } else { + console.log(e); + } + } + + /** + * Starts the unarchive in a separate Web Worker thread and returns immediately. + */ + start() { + const me = this; + const scriptFileName = this.pathToBitJS_ + this.getScriptFileName(); + if (scriptFileName) { + this.worker_ = new Worker(scriptFileName); + + this.worker_.onerror = function(e) { + console.log('Worker error: message = ' + e.message); + throw e; + }; + + this.worker_.onmessage = function(e) { + if (typeof e.data == 'string') { + // Just log any strings the workers pump our way. + console.log(e.data); + } else { + // Assume that it is an UnarchiveEvent. Some browsers preserve the 'type' + // so that instanceof UnarchiveEvent returns true, but others do not. + me.handleWorkerEvent_(e.data); + } + }; + + this.worker_.postMessage({file: this.ab}); + } + } + + /** + * Terminates the Web Worker for this Unarchiver and returns immediately. + */ + stop() { + if (this.worker_) { + this.worker_.terminate(); + } + } +} + + +/** + * Unzipper + */ +bitjs.archive.Unzipper = class extends bitjs.archive.Unarchiver { + constructor(arrayBuffer, opt_pathToBitJS) { + super(arrayBuffer, opt_pathToBitJS); + } + + getScriptFileName() { return 'archive/unzip.js'; } +} + + +/** + * Unrarrer + */ +bitjs.archive.Unrarrer = class extends bitjs.archive.Unarchiver { + constructor(arrayBuffer, opt_pathToBitJS) { + super(arrayBuffer, opt_pathToBitJS); + } + + getScriptFileName() { return 'archive/unrar.js'; } +} + +/** + * Untarrer + * @extends {bitjs.archive.Unarchiver} + * @constructor + */ +bitjs.archive.Untarrer = class extends bitjs.archive.Unarchiver { + constructor(arrayBuffer, opt_pathToBitJS) { + super(arrayBuffer, opt_pathToBitJS); + } + + getScriptFileName() { return 'archive/untar.js'; }; +} + +/** + * Factory method that creates an unarchiver based on the byte signature found + * in the arrayBuffer. + * @param {ArrayBuffer} ab + * @param {string=} opt_pathToBitJS Path to the unarchiver script files. + * @return {bitjs.archive.Unarchiver} + */ +bitjs.archive.GetUnarchiver = function(ab, opt_pathToBitJS) { + let unarchiver = null; + const pathToBitJS = opt_pathToBitJS || ''; + const h = new Uint8Array(ab, 0, 10); + + if (h[0] == 0x52 && h[1] == 0x61 && h[2] == 0x72 && h[3] == 0x21) { // Rar! + unarchiver = new bitjs.archive.Unrarrer(ab, pathToBitJS); + } else if (h[0] == 0x50 && h[1] == 0x4B) { // PK (Zip) + unarchiver = new bitjs.archive.Unzipper(ab, pathToBitJS); + } else { // Try with tar + unarchiver = new bitjs.archive.Untarrer(ab, pathToBitJS); + } + return unarchiver; +}; + +// Progress variables. +let currentFilename = ""; +let currentFileNumber = 0; +let currentBytesUnarchivedInFile = 0; +let currentBytesUnarchived = 0; +let totalUncompressedBytesInArchive = 0; +let totalFilesInArchive = 0; + +// Helper functions. +const info = function(str) { + postMessage(new bitjs.archive.UnarchiveInfoEvent(str)); +}; +const err = function(str) { + postMessage(new bitjs.archive.UnarchiveErrorEvent(str)); +}; +const postProgress = function() { + postMessage(new bitjs.archive.UnarchiveProgressEvent( + currentFilename, + currentFileNumber, + currentBytesUnarchivedInFile, + currentBytesUnarchived, + totalUncompressedBytesInArchive, + totalFilesInArchive)); +}; + +const zLocalFileHeaderSignature = 0x04034b50; +const zArchiveExtraDataSignature = 0x08064b50; +const zCentralFileHeaderSignature = 0x02014b50; +const zDigitalSignatureSignature = 0x05054b50; +const zEndOfCentralDirSignature = 0x06064b50; +const zEndOfCentralDirLocatorSignature = 0x07064b50; + +// mask for getting the Nth bit (zero-based) +const BIT = [ 0x01, 0x02, 0x04, 0x08, + 0x10, 0x20, 0x40, 0x80, + 0x100, 0x200, 0x400, 0x800, + 0x1000, 0x2000, 0x4000, 0x8000]; + + +class ZipLocalFile { + // takes a ByteStream and parses out the local file information + constructor(bstream) { + if (typeof bstream != typeof {} || !bstream.readNumber || typeof bstream.readNumber != typeof function(){}) { + return null; + } + + bstream.readNumber(4); // swallow signature + this.version = bstream.readNumber(2); + this.generalPurpose = bstream.readNumber(2); + this.compressionMethod = bstream.readNumber(2); + this.lastModFileTime = bstream.readNumber(2); + this.lastModFileDate = bstream.readNumber(2); + this.crc32 = bstream.readNumber(4); + this.compressedSize = bstream.readNumber(4); + this.uncompressedSize = bstream.readNumber(4); + this.fileNameLength = bstream.readNumber(2); + this.extraFieldLength = bstream.readNumber(2); + + this.filename = null; + if (this.fileNameLength > 0) { + this.filename = bstream.readString(this.fileNameLength); + } + + info("Zip Local File Header:"); + info(" version=" + this.version); + info(" general purpose=" + this.generalPurpose); + info(" compression method=" + this.compressionMethod); + info(" last mod file time=" + this.lastModFileTime); + info(" last mod file date=" + this.lastModFileDate); + info(" crc32=" + this.crc32); + info(" compressed size=" + this.compressedSize); + info(" uncompressed size=" + this.uncompressedSize); + info(" file name length=" + this.fileNameLength); + info(" extra field length=" + this.extraFieldLength); + info(" filename = '" + this.filename + "'"); + + this.extraField = null; + if (this.extraFieldLength > 0) { + this.extraField = bstream.readString(this.extraFieldLength); + info(" extra field=" + this.extraField); + } + + // read in the compressed data + this.fileData = null; + if (this.compressedSize > 0) { + this.fileData = new Uint8Array(bstream.readBytes(this.compressedSize)); + } + + // TODO: deal with data descriptor if present (we currently assume no data descriptor!) + // "This descriptor exists only if bit 3 of the general purpose bit flag is set" + // But how do you figure out how big the file data is if you don't know the compressedSize + // from the header?!? + if ((this.generalPurpose & BIT[3]) != 0) { + this.crc32 = bstream.readNumber(4); + this.compressedSize = bstream.readNumber(4); + this.uncompressedSize = bstream.readNumber(4); + } + } + + // determine what kind of compressed data we have and decompress + unzip() { + // Zip Version 1.0, no compression (store only) + if (this.compressionMethod == 0 ) { + info("ZIP v"+this.version+", store only: " + this.filename + " (" + this.compressedSize + " bytes)"); + currentBytesUnarchivedInFile = this.compressedSize; + currentBytesUnarchived += this.compressedSize; + } + // version == 20, compression method == 8 (DEFLATE) + else if (this.compressionMethod == 8) { + info("ZIP v2.0, DEFLATE: " + this.filename + " (" + this.compressedSize + " bytes)"); + this.fileData = inflate(this.fileData, this.uncompressedSize); + } + else { + err("UNSUPPORTED VERSION/FORMAT: ZIP v" + this.version + ", compression method=" + this.compressionMethod + ": " + this.filename + " (" + this.compressedSize + " bytes)"); + this.fileData = null; + } + } +} + +// Takes an ArrayBuffer of a zip file in +// returns null on error +// returns an array of DecompressedFile objects on success +const unzip = function(arrayBuffer) { + postMessage(new bitjs.archive.UnarchiveStartEvent()); + + currentFilename = ""; + currentFileNumber = 0; + currentBytesUnarchivedInFile = 0; + currentBytesUnarchived = 0; + totalUncompressedBytesInArchive = 0; + totalFilesInArchive = 0; + currentBytesUnarchived = 0; + + const bstream = new bitjs.io.ByteStream(arrayBuffer); + // detect local file header signature or return null + if (bstream.peekNumber(4) == zLocalFileHeaderSignature) { + const localFiles = []; + // loop until we don't see any more local files + while (bstream.peekNumber(4) == zLocalFileHeaderSignature) { + const oneLocalFile = new ZipLocalFile(bstream); + // this should strip out directories/folders + if (oneLocalFile && oneLocalFile.uncompressedSize > 0 && oneLocalFile.fileData) { + localFiles.push(oneLocalFile); + totalUncompressedBytesInArchive += oneLocalFile.uncompressedSize; + } + } + totalFilesInArchive = localFiles.length; + + // got all local files, now sort them + localFiles.sort((a,b) => a.filename > b.filename ? 1 : -1); + + // archive extra data record + if (bstream.peekNumber(4) == zArchiveExtraDataSignature) { + info(" Found an Archive Extra Data Signature"); + + // skipping this record for now + bstream.readNumber(4); + const archiveExtraFieldLength = bstream.readNumber(4); + bstream.readString(archiveExtraFieldLength); + } + + // central directory structure + // TODO: handle the rest of the structures (Zip64 stuff) + if (bstream.peekNumber(4) == zCentralFileHeaderSignature) { + info(" Found a Central File Header"); + + // read all file headers + while (bstream.peekNumber(4) == zCentralFileHeaderSignature) { + bstream.readNumber(4); // signature + bstream.readNumber(2); // version made by + bstream.readNumber(2); // version needed to extract + bstream.readNumber(2); // general purpose bit flag + bstream.readNumber(2); // compression method + bstream.readNumber(2); // last mod file time + bstream.readNumber(2); // last mod file date + bstream.readNumber(4); // crc32 + bstream.readNumber(4); // compressed size + bstream.readNumber(4); // uncompressed size + const fileNameLength = bstream.readNumber(2); // file name length + const extraFieldLength = bstream.readNumber(2); // extra field length + const fileCommentLength = bstream.readNumber(2); // file comment length + bstream.readNumber(2); // disk number start + bstream.readNumber(2); // internal file attributes + bstream.readNumber(4); // external file attributes + bstream.readNumber(4); // relative offset of local header + + bstream.readString(fileNameLength); // file name + bstream.readString(extraFieldLength); // extra field + bstream.readString(fileCommentLength); // file comment + } + } + + // digital signature + if (bstream.peekNumber(4) == zDigitalSignatureSignature) { + info(" Found a Digital Signature"); + + bstream.readNumber(4); + const sizeOfSignature = bstream.readNumber(2); + bstream.readString(sizeOfSignature); // digital signature data + } + + // report # files and total length + if (localFiles.length > 0) { + postProgress(); + } + + // now do the unzipping of each file + for (let i = 0; i < localFiles.length; ++i) { + const localfile = localFiles[i]; + + // update progress + currentFilename = localfile.filename; + currentFileNumber = i; + currentBytesUnarchivedInFile = 0; + + // actually do the unzipping + localfile.unzip(); + + if (localfile.fileData != null) { + postMessage(new bitjs.archive.UnarchiveExtractEvent(localfile)); + postProgress(); + } + } + postProgress(); + postMessage(new bitjs.archive.UnarchiveFinishEvent()); + } +} + +// returns a table of Huffman codes +// each entry's index is its code and its value is a JavaScript object +// containing {length: 6, symbol: X} +function getHuffmanCodes(bitLengths) { + // ensure bitLengths is an array containing at least one element + if (typeof bitLengths != typeof [] || bitLengths.length < 1) { + err("Error! getHuffmanCodes() called with an invalid array"); + return null; + } + + // Reference: http://tools.ietf.org/html/rfc1951#page-8 + const numLengths = bitLengths.length; + const bl_count = []; + let MAX_BITS = 1; + + // Step 1: count up how many codes of each length we have + for (let i = 0; i < numLengths; ++i) { + const length = bitLengths[i]; + // test to ensure each bit length is a positive, non-zero number + if (typeof length != typeof 1 || length < 0) { + err("bitLengths contained an invalid number in getHuffmanCodes(): " + length + " of type " + (typeof length)); + return null; + } + // increment the appropriate bitlength count + if (bl_count[length] == undefined) bl_count[length] = 0; + // a length of zero means this symbol is not participating in the huffman coding + if (length > 0) bl_count[length]++; + if (length > MAX_BITS) MAX_BITS = length; + } + + // Step 2: Find the numerical value of the smallest code for each code length + const next_code = []; + let code = 0; + for (let bits = 1; bits <= MAX_BITS; ++bits) { + const length = bits-1; + // ensure undefined lengths are zero + if (bl_count[length] == undefined) bl_count[length] = 0; + code = (code + bl_count[bits-1]) << 1; + next_code[bits] = code; + } + + // Step 3: Assign numerical values to all codes + const table = {}; + let tableLength = 0; + for (let n = 0; n < numLengths; ++n) { + const len = bitLengths[n]; + if (len != 0) { + table[next_code[len]] = { length: len, symbol: n }; //, bitstring: binaryValueToString(next_code[len],len) }; + tableLength++; + next_code[len]++; + } + } + table.maxLength = tableLength; + + return table; +} + +/* + The Huffman codes for the two alphabets are fixed, and are not + represented explicitly in the data. The Huffman code lengths + for the literal/length alphabet are: + + Lit Value Bits Codes + --------- ---- ----- + 0 - 143 8 00110000 through + 10111111 + 144 - 255 9 110010000 through + 111111111 + 256 - 279 7 0000000 through + 0010111 + 280 - 287 8 11000000 through + 11000111 +*/ +// fixed Huffman codes go from 7-9 bits, so we need an array whose index can hold up to 9 bits +let fixedHCtoLiteral = null; +let fixedHCtoDistance = null; +function getFixedLiteralTable() { + // create once + if (!fixedHCtoLiteral) { + const bitlengths = new Array(288); + for (let i = 0; i <= 143; ++i) bitlengths[i] = 8; + for (let i = 144; i <= 255; ++i) bitlengths[i] = 9; + for (let i = 256; i <= 279; ++i) bitlengths[i] = 7; + for (let i = 280; i <= 287; ++i) bitlengths[i] = 8; + + // get huffman code table + fixedHCtoLiteral = getHuffmanCodes(bitlengths); + } + return fixedHCtoLiteral; +} + +function getFixedDistanceTable() { + // create once + if (!fixedHCtoDistance) { + const bitlengths = new Array(32); + for (let i = 0; i < 32; ++i) { bitlengths[i] = 5; } + + // get huffman code table + fixedHCtoDistance = getHuffmanCodes(bitlengths); + } + return fixedHCtoDistance; +} + +// extract one bit at a time until we find a matching Huffman Code +// then return that symbol +function decodeSymbol(bstream, hcTable) { + let code = 0; + let len = 0; + let match = false; + + // loop until we match + for (;;) { + // read in next bit + const bit = bstream.readBits(1); + code = (code<<1) | bit; + ++len; + + // check against Huffman Code table and break if found + if (hcTable.hasOwnProperty(code) && hcTable[code].length == len) { + break; + } + if (len > hcTable.maxLength) { + err("Bit stream out of sync, didn't find a Huffman Code, length was " + len + + " and table only max code length of " + hcTable.maxLength); + break; + } + } + return hcTable[code].symbol; +} + + +const CodeLengthCodeOrder = [16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15]; + +/* + Extra Extra Extra +Code Bits Length(s) Code Bits Lengths Code Bits Length(s) +---- ---- ------ ---- ---- ------- ---- ---- ------- + 257 0 3 267 1 15,16 277 4 67-82 + 258 0 4 268 1 17,18 278 4 83-98 + 259 0 5 269 2 19-22 279 4 99-114 + 260 0 6 270 2 23-26 280 4 115-130 + 261 0 7 271 2 27-30 281 5 131-162 + 262 0 8 272 2 31-34 282 5 163-194 + 263 0 9 273 3 35-42 283 5 195-226 + 264 0 10 274 3 43-50 284 5 227-257 + 265 1 11,12 275 3 51-58 285 0 258 + 266 1 13,14 276 3 59-66 +*/ +const LengthLookupTable = [ + [0,3], [0,4], [0,5], [0,6], + [0,7], [0,8], [0,9], [0,10], + [1,11], [1,13], [1,15], [1,17], + [2,19], [2,23], [2,27], [2,31], + [3,35], [3,43], [3,51], [3,59], + [4,67], [4,83], [4,99], [4,115], + [5,131], [5,163], [5,195], [5,227], + [0,258] +]; + +/* + Extra Extra Extra + Code Bits Dist Code Bits Dist Code Bits Distance + ---- ---- ---- ---- ---- ------ ---- ---- -------- + 0 0 1 10 4 33-48 20 9 1025-1536 + 1 0 2 11 4 49-64 21 9 1537-2048 + 2 0 3 12 5 65-96 22 10 2049-3072 + 3 0 4 13 5 97-128 23 10 3073-4096 + 4 1 5,6 14 6 129-192 24 11 4097-6144 + 5 1 7,8 15 6 193-256 25 11 6145-8192 + 6 2 9-12 16 7 257-384 26 12 8193-12288 + 7 2 13-16 17 7 385-512 27 12 12289-16384 + 8 3 17-24 18 8 513-768 28 13 16385-24576 + 9 3 25-32 19 8 769-1024 29 13 24577-32768 +*/ +const DistLookupTable = [ + [0,1], [0,2], [0,3], [0,4], + [1,5], [1,7], + [2,9], [2,13], + [3,17], [3,25], + [4,33], [4,49], + [5,65], [5,97], + [6,129], [6,193], + [7,257], [7,385], + [8,513], [8,769], + [9,1025], [9,1537], + [10,2049], [10,3073], + [11,4097], [11,6145], + [12,8193], [12,12289], + [13,16385], [13,24577] +]; + +function inflateBlockData(bstream, hcLiteralTable, hcDistanceTable, buffer) { + /* + loop (until end of block code recognized) + decode literal/length value from input stream + if value < 256 + copy value (literal byte) to output stream + otherwise + if value = end of block (256) + break from loop + otherwise (value = 257..285) + decode distance from input stream + + move backwards distance bytes in the output + stream, and copy length bytes from this + position to the output stream. + */ + let numSymbols = 0; + let blockSize = 0; + for (;;) { + const symbol = decodeSymbol(bstream, hcLiteralTable); + ++numSymbols; + if (symbol < 256) { + // copy literal byte to output + buffer.insertByte(symbol); + blockSize++; + } else { + // end of block reached + if (symbol == 256) { + break; + } else { + const lengthLookup = LengthLookupTable[symbol - 257]; + let length = lengthLookup[1] + bstream.readBits(lengthLookup[0]); + const distLookup = DistLookupTable[decodeSymbol(bstream, hcDistanceTable)]; + let distance = distLookup[1] + bstream.readBits(distLookup[0]); + + // now apply length and distance appropriately and copy to output + + // TODO: check that backward distance < data.length? + + // http://tools.ietf.org/html/rfc1951#page-11 + // "Note also that the referenced string may overlap the current + // position; for example, if the last 2 bytes decoded have values + // X and Y, a string reference with + // adds X,Y,X,Y,X to the output stream." + // + // loop for each character + let ch = buffer.ptr - distance; + blockSize += length; + if(length > distance) { + const data = buffer.data; + while (length--) { + buffer.insertByte(data[ch++]); + } + } else { + buffer.insertBytes(buffer.data.subarray(ch, ch + length)) + } + } // length-distance pair + } // length-distance pair or end-of-block + } // loop until we reach end of block + return blockSize; +} + +// {Uint8Array} compressedData A Uint8Array of the compressed file data. +// compression method 8 +// deflate: http://tools.ietf.org/html/rfc1951 +function inflate(compressedData, numDecompressedBytes) { + // Bit stream representing the compressed data. + const bstream = new bitjs.io.BitStream(compressedData.buffer, + false /* rtl */, + compressedData.byteOffset, + compressedData.byteLength); + const buffer = new bitjs.io.ByteBuffer(numDecompressedBytes); + let numBlocks = 0; + let blockSize = 0; + + // block format: http://tools.ietf.org/html/rfc1951#page-9 + let bFinal = 0; + do { + bFinal = bstream.readBits(1); + let bType = bstream.readBits(2); + blockSize = 0; + ++numBlocks; + // no compression + if (bType == 0) { + // skip remaining bits in this byte + while (bstream.bitPtr != 0) bstream.readBits(1); + const len = bstream.readBits(16); + const nlen = bstream.readBits(16); + // TODO: check if nlen is the ones-complement of len? + if (len > 0) buffer.insertBytes(bstream.readBytes(len)); + blockSize = len; + } + // fixed Huffman codes + else if(bType == 1) { + blockSize = inflateBlockData(bstream, getFixedLiteralTable(), getFixedDistanceTable(), buffer); + } + // dynamic Huffman codes + else if(bType == 2) { + const numLiteralLengthCodes = bstream.readBits(5) + 257; + const numDistanceCodes = bstream.readBits(5) + 1; + const numCodeLengthCodes = bstream.readBits(4) + 4; + + // populate the array of code length codes (first de-compaction) + const codeLengthsCodeLengths = [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]; + for (let i = 0; i < numCodeLengthCodes; ++i) { + codeLengthsCodeLengths[ CodeLengthCodeOrder[i] ] = bstream.readBits(3); + } + + // get the Huffman Codes for the code lengths + const codeLengthsCodes = getHuffmanCodes(codeLengthsCodeLengths); + + // now follow this mapping + /* + 0 - 15: Represent code lengths of 0 - 15 + 16: Copy the previous code length 3 - 6 times. + The next 2 bits indicate repeat length + (0 = 3, ... , 3 = 6) + Example: Codes 8, 16 (+2 bits 11), + 16 (+2 bits 10) will expand to + 12 code lengths of 8 (1 + 6 + 5) + 17: Repeat a code length of 0 for 3 - 10 times. + (3 bits of length) + 18: Repeat a code length of 0 for 11 - 138 times + (7 bits of length) + */ + // to generate the true code lengths of the Huffman Codes for the literal + // and distance tables together + const literalCodeLengths = []; + let prevCodeLength = 0; + while (literalCodeLengths.length < numLiteralLengthCodes + numDistanceCodes) { + const symbol = decodeSymbol(bstream, codeLengthsCodes); + if (symbol <= 15) { + literalCodeLengths.push(symbol); + prevCodeLength = symbol; + } else if (symbol == 16) { + let repeat = bstream.readBits(2) + 3; + while (repeat--) { + literalCodeLengths.push(prevCodeLength); + } + } else if (symbol == 17) { + let repeat = bstream.readBits(3) + 3; + while (repeat--) { + literalCodeLengths.push(0); + } + } else if (symbol == 18) { + let repeat = bstream.readBits(7) + 11; + while (repeat--) { + literalCodeLengths.push(0); + } + } + } + + // now split the distance code lengths out of the literal code array + const distanceCodeLengths = literalCodeLengths.splice(numLiteralLengthCodes, numDistanceCodes); + + // now generate the true Huffman Code tables using these code lengths + const hcLiteralTable = getHuffmanCodes(literalCodeLengths); + const hcDistanceTable = getHuffmanCodes(distanceCodeLengths); + blockSize = inflateBlockData(bstream, hcLiteralTable, hcDistanceTable, buffer); + } else { // error + err("Error! Encountered deflate block of type 3"); + return null; + } + + // update progress + currentBytesUnarchivedInFile += blockSize; + currentBytesUnarchived += blockSize; + postProgress(); + } while (bFinal != 1); + // we are done reading blocks if the bFinal bit was set for this block + + // return the buffer data bytes + return buffer.data; +} + +// event.data.file has the ArrayBuffer. +onmessage = function(event) { + unzip(event.data.file, true); +}; diff --git a/vendor/bitjs/io/bitstream.js b/vendor/bitjs/io/bitstream.js new file mode 100644 index 0000000..28b7dbc --- /dev/null +++ b/vendor/bitjs/io/bitstream.js @@ -0,0 +1,222 @@ +/* + * bitstream.js + * + * Provides readers for bitstreams. + * + * Licensed under the MIT License + * + * Copyright(c) 2011 Google Inc. + * Copyright(c) 2011 antimatter15 + */ + +var bitjs = bitjs || {}; +bitjs.io = bitjs.io || {}; + + +/** + * This bit stream peeks and consumes bits out of a binary stream. + */ +bitjs.io.BitStream = class { + /** + * @param {ArrayBuffer} ab An ArrayBuffer object or a Uint8Array. + * @param {boolean} rtl Whether the stream reads bits from the byte starting + * from bit 7 to 0 (true) or bit 0 to 7 (false). + * @param {Number} opt_offset The offset into the ArrayBuffer + * @param {Number} opt_length The length of this BitStream + */ + constructor(ab, rtl, opt_offset, opt_length) { + if (!ab || !ab.toString || ab.toString() !== "[object ArrayBuffer]") { + throw "Error! BitArray constructed with an invalid ArrayBuffer object"; + } + + const offset = opt_offset || 0; + const length = opt_length || ab.byteLength; + this.bytes = new Uint8Array(ab, offset, length); + this.bytePtr = 0; // tracks which byte we are on + this.bitPtr = 0; // tracks which bit we are on (can have values 0 through 7) + this.peekBits = rtl ? this.peekBits_rtl : this.peekBits_ltr; + } + + /** + * byte0 byte1 byte2 byte3 + * 7......0 | 7......0 | 7......0 | 7......0 + * + * The bit pointer starts at bit0 of byte0 and moves left until it reaches + * bit7 of byte0, then jumps to bit0 of byte1, etc. + * @param {number} n The number of bits to peek. + * @param {boolean=} movePointers Whether to move the pointer, defaults false. + * @return {number} The peeked bits, as an unsigned number. + */ + peekBits_ltr(n, opt_movePointers) { + if (n <= 0 || typeof n != typeof 1) { + return 0; + } + + const movePointers = opt_movePointers || false; + const bytes = this.bytes; + let bytePtr = this.bytePtr; + let bitPtr = this.bitPtr; + let result = 0; + let bitsIn = 0; + + // keep going until we have no more bits left to peek at + // TODO: Consider putting all bits from bytes we will need into a variable and then + // shifting/masking it to just extract the bits we want. + // This could be considerably faster when reading more than 3 or 4 bits at a time. + while (n > 0) { + if (bytePtr >= bytes.length) { + throw "Error! Overflowed the bit stream! n=" + n + ", bytePtr=" + bytePtr + ", bytes.length=" + + bytes.length + ", bitPtr=" + bitPtr; + return -1; + } + + const numBitsLeftInThisByte = (8 - bitPtr); + if (n >= numBitsLeftInThisByte) { + const mask = (bitjs.io.BitStream.BITMASK[numBitsLeftInThisByte] << bitPtr); + result |= (((bytes[bytePtr] & mask) >> bitPtr) << bitsIn); + + bytePtr++; + bitPtr = 0; + bitsIn += numBitsLeftInThisByte; + n -= numBitsLeftInThisByte; + } + else { + const mask = (bitjs.io.BitStream.BITMASK[n] << bitPtr); + result |= (((bytes[bytePtr] & mask) >> bitPtr) << bitsIn); + + bitPtr += n; + bitsIn += n; + n = 0; + } + } + + if (movePointers) { + this.bitPtr = bitPtr; + this.bytePtr = bytePtr; + } + + return result; + } + + /** + * byte0 byte1 byte2 byte3 + * 7......0 | 7......0 | 7......0 | 7......0 + * + * The bit pointer starts at bit7 of byte0 and moves right until it reaches + * bit0 of byte0, then goes to bit7 of byte1, etc. + * @param {number} n The number of bits to peek. + * @param {boolean=} movePointers Whether to move the pointer, defaults false. + * @return {number} The peeked bits, as an unsigned number. + */ + peekBits_rtl(n, opt_movePointers) { + if (n <= 0 || typeof n != typeof 1) { + return 0; + } + + const movePointers = opt_movePointers || false; + const bytes = this.bytes; + let bytePtr = this.bytePtr; + let bitPtr = this.bitPtr; + let result = 0; + + // keep going until we have no more bits left to peek at + // TODO: Consider putting all bits from bytes we will need into a variable and then + // shifting/masking it to just extract the bits we want. + // This could be considerably faster when reading more than 3 or 4 bits at a time. + while (n > 0) { + if (bytePtr >= bytes.length) { + throw "Error! Overflowed the bit stream! n=" + n + ", bytePtr=" + bytePtr + ", bytes.length=" + + bytes.length + ", bitPtr=" + bitPtr; + return -1; + } + + const numBitsLeftInThisByte = (8 - bitPtr); + if (n >= numBitsLeftInThisByte) { + result <<= numBitsLeftInThisByte; + result |= (bitjs.io.BitStream.BITMASK[numBitsLeftInThisByte] & bytes[bytePtr]); + bytePtr++; + bitPtr = 0; + n -= numBitsLeftInThisByte; + } + else { + result <<= n; + result |= ((bytes[bytePtr] & (bitjs.io.BitStream.BITMASK[n] << (8 - n - bitPtr))) >> (8 - n - bitPtr)); + + bitPtr += n; + n = 0; + } + } + + if (movePointers) { + this.bitPtr = bitPtr; + this.bytePtr = bytePtr; + } + + return result; + } + + /** + * Peek at 16 bits from current position in the buffer. + * Bit at (bytePtr,bitPtr) has the highest position in returning data. + * Taken from getbits.hpp in unrar. + * TODO: Move this out of BitStream and into unrar. + */ + getBits() { + return (((((this.bytes[this.bytePtr] & 0xff) << 16) + + ((this.bytes[this.bytePtr+1] & 0xff) << 8) + + ((this.bytes[this.bytePtr+2] & 0xff))) >>> (8-this.bitPtr)) & 0xffff); + } + + /** + * Reads n bits out of the stream, consuming them (moving the bit pointer). + * @param {number} n The number of bits to read. + * @return {number} The read bits, as an unsigned number. + */ + readBits(n) { + return this.peekBits(n, true); + } + + /** + * This returns n bytes as a sub-array, advancing the pointer if movePointers + * is true. Only use this for uncompressed blocks as this throws away remaining + * bits in the current byte. + * @param {number} n The number of bytes to peek. + * @param {boolean=} movePointers Whether to move the pointer, defaults false. + * @return {Uint8Array} The subarray. + */ + peekBytes(n, opt_movePointers) { + if (n <= 0 || typeof n != typeof 1) { + return 0; + } + + // from http://tools.ietf.org/html/rfc1951#page-11 + // "Any bits of input up to the next byte boundary are ignored." + while (this.bitPtr != 0) { + this.readBits(1); + } + + const movePointers = opt_movePointers || false; + let bytePtr = this.bytePtr; + let bitPtr = this.bitPtr; + + const result = this.bytes.subarray(bytePtr, bytePtr + n); + + if (movePointers) { + this.bytePtr += n; + } + + return result; + } + + /** + * @param {number} n The number of bytes to read. + * @return {Uint8Array} The subarray. + */ + readBytes(n) { + return this.peekBytes(n, true); + } +} + +// mask for getting N number of bits (0-8) +bitjs.io.BitStream.BITMASK = [0, 0x01, 0x03, 0x07, 0x0F, 0x1F, 0x3F, 0x7F, 0xFF ]; + diff --git a/vendor/bitjs/io/bytebuffer.js b/vendor/bitjs/io/bytebuffer.js new file mode 100644 index 0000000..444c9e2 --- /dev/null +++ b/vendor/bitjs/io/bytebuffer.js @@ -0,0 +1,117 @@ +/* + * bytestream.js + * + * Provides a writer for bytes. + * + * Licensed under the MIT License + * + * Copyright(c) 2011 Google Inc. + * Copyright(c) 2011 antimatter15 + */ + +var bitjs = bitjs || {}; +bitjs.io = bitjs.io || {}; + + +/** + * A write-only Byte buffer which uses a Uint8 Typed Array as a backing store. + */ +bitjs.io.ByteBuffer = class { + /** + * @param {number} numBytes The number of bytes to allocate. + */ + constructor(numBytes) { + if (typeof numBytes != typeof 1 || numBytes <= 0) { + throw "Error! ByteBuffer initialized with '" + numBytes + "'"; + } + this.data = new Uint8Array(numBytes); + this.ptr = 0; + } + + + /** + * @param {number} b The byte to insert. + */ + insertByte(b) { + // TODO: throw if byte is invalid? + this.data[this.ptr++] = b; + } + + /** + * @param {Array.|Uint8Array|Int8Array} bytes The bytes to insert. + */ + insertBytes(bytes) { + // TODO: throw if bytes is invalid? + this.data.set(bytes, this.ptr); + this.ptr += bytes.length; + } + + /** + * Writes an unsigned number into the next n bytes. If the number is too large + * to fit into n bytes or is negative, an error is thrown. + * @param {number} num The unsigned number to write. + * @param {number} numBytes The number of bytes to write the number into. + */ + writeNumber(num, numBytes) { + if (numBytes < 1) { + throw 'Trying to write into too few bytes: ' + numBytes; + } + if (num < 0) { + throw 'Trying to write a negative number (' + num + + ') as an unsigned number to an ArrayBuffer'; + } + if (num > (Math.pow(2, numBytes * 8) - 1)) { + throw 'Trying to write ' + num + ' into only ' + numBytes + ' bytes'; + } + + // Roll 8-bits at a time into an array of bytes. + const bytes = []; + while (numBytes-- > 0) { + const eightBits = num & 255; + bytes.push(eightBits); + num >>= 8; + } + + this.insertBytes(bytes); + } + + /** + * Writes a signed number into the next n bytes. If the number is too large + * to fit into n bytes, an error is thrown. + * @param {number} num The signed number to write. + * @param {number} numBytes The number of bytes to write the number into. + */ + writeSignedNumber(num, numBytes) { + if (numBytes < 1) { + throw 'Trying to write into too few bytes: ' + numBytes; + } + + const HALF = Math.pow(2, (numBytes * 8) - 1); + if (num >= HALF || num < -HALF) { + throw 'Trying to write ' + num + ' into only ' + numBytes + ' bytes'; + } + + // Roll 8-bits at a time into an array of bytes. + const bytes = []; + while (numBytes-- > 0) { + const eightBits = num & 255; + bytes.push(eightBits); + num >>= 8; + } + + this.insertBytes(bytes); + } + + /** + * @param {string} str The ASCII string to write. + */ + writeASCIIString(str) { + for (let i = 0; i < str.length; ++i) { + const curByte = str.charCodeAt(i); + if (curByte < 0 || curByte > 255) { + throw 'Trying to write a non-ASCII string!'; + } + this.insertByte(curByte); + } + }; +} diff --git a/vendor/bitjs/io/bytestream.js b/vendor/bitjs/io/bytestream.js new file mode 100644 index 0000000..2af361e --- /dev/null +++ b/vendor/bitjs/io/bytestream.js @@ -0,0 +1,159 @@ +/* + * bytestream.js + * + * Provides readers for byte streams. + * + * Licensed under the MIT License + * + * Copyright(c) 2011 Google Inc. + * Copyright(c) 2011 antimatter15 + */ + +var bitjs = bitjs || {}; +bitjs.io = bitjs.io || {}; + + +/** + * This object allows you to peek and consume bytes as numbers and strings + * out of an ArrayBuffer. In this buffer, everything must be byte-aligned. + */ +bitjs.io.ByteStream = class { + /** + * @param {ArrayBuffer} ab The ArrayBuffer object. + * @param {number=} opt_offset The offset into the ArrayBuffer + * @param {number=} opt_length The length of this BitStream + */ + constructor(ab, opt_offset, opt_length) { + const offset = opt_offset || 0; + const length = opt_length || ab.byteLength; + this.bytes = new Uint8Array(ab, offset, length); + this.ptr = 0; + } + + + /** + * Peeks at the next n bytes as an unsigned number but does not advance the + * pointer + * TODO: This apparently cannot read more than 4 bytes as a number? + * @param {number} n The number of bytes to peek at. + * @return {number} The n bytes interpreted as an unsigned number. + */ + peekNumber(n) { + // TODO: return error if n would go past the end of the stream? + if (n <= 0 || typeof n != typeof 1) { + return -1; + } + + let result = 0; + // read from last byte to first byte and roll them in + let curByte = this.ptr + n - 1; + while (curByte >= this.ptr) { + result <<= 8; + result |= this.bytes[curByte]; + --curByte; + } + return result; + } + + + /** + * Returns the next n bytes as an unsigned number (or -1 on error) + * and advances the stream pointer n bytes. + * @param {number} n The number of bytes to read. + * @return {number} The n bytes interpreted as an unsigned number. + */ + readNumber(n) { + const num = this.peekNumber( n ); + this.ptr += n; + return num; + } + + + /** + * Returns the next n bytes as a signed number but does not advance the + * pointer. + * @param {number} n The number of bytes to read. + * @return {number} The bytes interpreted as a signed number. + */ + peekSignedNumber(n) { + let num = this.peekNumber(n); + const HALF = Math.pow(2, (n * 8) - 1); + const FULL = HALF * 2; + + if (num >= HALF) num -= FULL; + + return num; + } + + + /** + * Returns the next n bytes as a signed number and advances the stream pointer. + * @param {number} n The number of bytes to read. + * @return {number} The bytes interpreted as a signed number. + */ + readSignedNumber(n) { + const num = this.peekSignedNumber(n); + this.ptr += n; + return num; + } + + + /** + * This returns n bytes as a sub-array, advancing the pointer if movePointers + * is true. + * @param {number} n The number of bytes to read. + * @param {boolean} movePointers Whether to move the pointers. + * @return {Uint8Array} The subarray. + */ + peekBytes(n, movePointers) { + if (n <= 0 || typeof n != typeof 1) { + return null; + } + + const result = this.bytes.subarray(this.ptr, this.ptr + n); + + if (movePointers) { + this.ptr += n; + } + + return result; + } + + /** + * Reads the next n bytes as a sub-array. + * @param {number} n The number of bytes to read. + * @return {Uint8Array} The subarray. + */ + readBytes(n) { + return this.peekBytes(n, true); + } + + /** + * Peeks at the next n bytes as a string but does not advance the pointer. + * @param {number} n The number of bytes to peek at. + * @return {string} The next n bytes as a string. + */ + peekString(n) { + if (n <= 0 || typeof n != typeof 1) { + return ""; + } + + let result = ""; + for (let p = this.ptr, end = this.ptr + n; p < end; ++p) { + result += String.fromCharCode(this.bytes[p]); + } + return result; + } + + /** + * Returns the next n bytes as an ASCII string and advances the stream pointer + * n bytes. + * @param {number} n The number of bytes to read. + * @return {string} The next n bytes as a string. + */ + readString(n) { + const strToReturn = this.peekString(n); + this.ptr += n; + return strToReturn; + } +} diff --git a/vendor/cbrjs/cbr.js b/vendor/cbrjs/cbr.js new file mode 100644 index 0000000..077369c --- /dev/null +++ b/vendor/cbrjs/cbr.js @@ -0,0 +1,1476 @@ +var CBRJS = CBRJS || {}; +CBRJS.VERSION = "0.0.1"; + +CBRJS.basePath = CBRJS.basePath || ""; +CBRJS.session = CBRJS.session || {}; + +CBRJS.Reader = function(bookPath, _options) { + + var reader = this, + $progressbar = $('.bar'), + search = window.location.search, + parameters, + options, + found; + + this.options = options = $.extend(true, _options || {}, { + bookPath: bookPath, + session: {} + }); + + // Overide options with search parameters + if(search) { + parameters = search.slice(1).split("&"); + parameters.forEach(function(p){ + var split = p.split("="); + var name = split[0]; + var value = split[1] || ''; + reader.options[name] = decodeURIComponent(value); + }); + } + + function extractImages(url, opts) { + + var images = [], + xhr = new XMLHttpRequest(), + filename = decodeURIComponent(url.split('/').pop()), + re_file_ext = new RegExp(/\.([a-z]+)$/), + format = filename.toLowerCase().match(re_file_ext)[1], + archive_class = ({ cbz: 'Unzipper', cbr: 'Unrarrer' })[format], + options = $.extend({ + start: function () {}, + extract: function (page_url) {}, + progress: function (percent_complete) {}, + finish: function (images) {} + }, opts); + + if (!archive_class) { + alert('invalid file type, only cbz and cbr are supported.'); + return false; + } + + xhr.open('GET',url, true); + + options.start(filename); + + xhr.responseType = "arraybuffer"; + + xhr.onprogress = function (e) { + if (e.lengthComputable) { + $progressbar.css('width', Math.floor((e.loaded / e.total) * 100) + '%'); + } + }; + + xhr.onloadstart = function (e) { + $progressbar.css('width', '0%'); + }; + + xhr.onloadend = function (e) { + $('.icon-cloud_download').addClass('ok'); + reader.options.session.size = e.total; + }; + + xhr.onload = function () { + if ((this.status === 200) && this.response) { + var done = false; + var ua = new bitjs.archive[archive_class](this.response, document.head.dataset.basepath + 'vendor/bitjs/'); + + ua.addEventListener(bitjs.archive.UnarchiveEvent.Type.START, function (e) { + $progressbar.css('width', '0%'); + $('.icon-unarchive').addClass('active'); + }); + + ua.addEventListener(bitjs.archive.UnarchiveEvent.Type.EXTRACT, function (e) { + + var mimetype, blob, url; + var file_extension = e.unarchivedFile.filename.toLowerCase().match(re_file_ext)[1]; + + switch (file_extension) { + case 'jpg': + case 'jpeg': + mimetype = 'image/jpeg'; + break; + case 'png': + mimetype = 'image/png'; + break; + case 'gif': + mimetype = 'image/gif'; + break; + default: + return false; + } + + blob = new Blob([e.unarchivedFile.fileData], { type: mimetype }); + url = window.URL.createObjectURL(blob); + + images.push(url); + + options.extract(url, blob); + }); + + ua.addEventListener(bitjs.archive.UnarchiveEvent.Type.PROGRESS, function (e) { + options.progress(Math.floor(e.currentBytesUnarchived / e.totalUncompressedBytesInArchive * 100)); + }); + + ua.addEventListener(bitjs.archive.UnarchiveEvent.Type.FINISH, function (e) { + options.finish(images); + }); + + ua.addEventListener(bitjs.archive.UnarchiveEvent.Type.ERROR, function (e) { + $('.icon-unarchive').removeClass('active'); + $('.icon-unarchive').addClass('error'); + $('#message').text('Failed to extract images from archive, file corrupted?'); + + }); + } + + ua.start(); + }; + + xhr.send(); + } + + function openComicArchive(url, options) { + + var title, page = 0; + + extractImages(url, { + start: function (filename) { + this.filename = filename; + $('.toolbar').addClass('hide'); + $('.navigation').addClass('hide'); + $('.icon-cloud_download').addClass('active'); + $('.message-text').text(filename); + $('#progressbar').show(); + }, + extract: function (url, blob) { + $('.message-text').text('extracting page #' + ++page); + }, + progress: function (percent_complete) { + $progressbar.css('width', percent_complete + '%'); + }, + finish: function (pages) { + + $('.icon-unarchive').addClass('ok'); + var name = this.filename.replace(/\.[a-z]+$/, ''); + var id = encodeURIComponent(name.toLowerCase()); + var book = new ComicBook('viewer', pages, options); + + document.title = name; + + $('.toolbar').removeClass('hide'); + $('.navigation').removeClass('hide'); + $('#progressbar').hide(); + $('#viewer').show(); + + book.draw(); + + $(window).on('resize', function () { + book.draw(); + }); + $(window).on('beforeunload', function(e) { + book.destroy(); + }); + } + }); + + } + + + function getPref (arr, name) { + if ((arr.constructor === Array) && (found = arr.filter(function(e) { return e.name === name; }))) { + if (found.hasOwnProperty("value")) { + return found.value; + } + } + }; + + openComicArchive(bookPath, { + currentPage: parseInt(options.session.cursor.value) || 0, + enhance: getPref(options.session.preferences, "enhance") || {}, + manga: getPref(options.session.preferences, "manga") || false, + thumbnails: getPref(options.session.defaults, "thumbnails"), + thumbnailWidth: parseInt(getPref(options.session.defaults, "thumbnailWidth")) || 200, + session: options.session + }); + + return this; +}; + +var ComicBook; +ComicBook = (function ($) { + + + 'use strict'; + + /** + * Merge two arrays. Any properties in b will replace the same properties in + * a. New properties from b will be added to a. + * + * @param a {Object} + * @param b {Object} + */ + function merge(a, b) { + + var prop; + + if (typeof b === 'undefined') { + b = {}; + } + + for (prop in a) { + if (a.hasOwnProperty(prop)) { + if (prop in b) { + continue; + } + b[prop] = a[prop]; + } + } + + return b; + } + + /** + * Exception class. Always throw an instance of this when throwing exceptions. + * + * @param {String} type + * @param {Object} object + * @returns {ComicBookException} + */ + var ComicBookException = { + INVALID_ACTION: 'invalid action', + INVALID_PAGE: 'invalid page', + INVALID_PAGE_TYPE: 'invalid page type', + UNDEFINED_CONTROL: 'undefined control', + INVALID_ZOOM_MODE: 'invalid zoom mode', + INVALID_NAVIGATION_EVENT: 'invalid navigation event' + }; + + function ComicBook(id, srcs, opts) { + + var self = this; + var canvas_id = id; // canvas element id + this.srcs = srcs; // array of image srcs for pages + + var defaults = { + displayMode: (window.innerWidth > window.innerHeight) ? 'double' : 'single', // single / double + zoomMode: 'fitWindow', // manual / fitWidth / fitWindow + manga: false, // true / false + fullscreen: false, // true / false + enhance: {}, // image filters to use + thumbnails: true, // true / false (use thumbnails in index) + thumbnailWidth: 200, // width of thumbnail + sidebarWide: false, // use wide sidbar + currentPage: 0, // current page + keyboard: { + 32: 'next', // space + 34: 'next', // page-down + 39: 'next', // cursor-right + 33: 'previous', // page-up + 37: 'previous', // cursor-left + 36: 'first', // home + 35: 'last', // end + 83: 'sidebar', // s + 84: 'toolbar', // t + 76: 'toggleLayout', // l + 70: 'toggleFullscreen', // f + 27: 'closeSidebar' // esc + }, + vendorPath: document.head.dataset.basepath + 'vendor/', + forward_buffer: 3, + session: { + getCursor: function() {}, + setCursor: function(value) {}, + getBookmark: function(name, type) {}, + setBookmark: function(name, value, type, content) {}, + getDefault: function(name) {}, + setDefault: function(name, value) {}, + getPreference: function(name) {}, + setPreference: function(name, value) {} + } + }; + + var options = {}; + + this.isMobile = false; + + // mobile enhancements + if (/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini|Mobile/i.test(navigator.userAgent)) { + this.isMobile = true; + document.body.classList.add('mobile'); + + window.addEventListener('load', function () { + setTimeout(function () { + window.scrollTo(0, 1); + }, 0); + }); + } + + window.addEventListener('resize', function () { + self.setLayout((window.innerWidth > window.innerHeight) ? 'double' : 'single'); + }); + + $.extend(true, options, defaults, opts); // options array for internal use + + var no_pages = srcs.length; + var pages = []; // array of preloaded Image objects + var canvas; // the HTML5 canvas object + var context; // the 2d drawing context + var tcv = document.createElement("canvas"); // canvas used for thumbnailer + var tctx = tcv.getContext('2d'); // context used for thumbnailer + var toc = document.getElementById('toc'); // context used for thumbnailer + var loaded = []; // the images that have been loaded so far + var scale = 1; // page zoom scale, 1 = 100% + var is_double_page_spread = false; + var controlsRendered = false; // have the user controls been inserted into the dom yet? + var page_requested = false; // used to request non preloaded pages + var shiv = false; + + /** + * Gets the window.innerWidth - scrollbars + */ + function windowWidth() { + + var height = window.innerHeight + 1; + + if (shiv === false) { + shiv = $(document.createElement('div')) + .attr('id', 'cbr-width-shiv') + .css({ + width: '100%', + position: 'absolute', + top: 0, + zIndex: '-1000' + }); + + $('body').append(shiv); + } + + shiv.height(height); + + return shiv.innerWidth(); + } + + /** + * enables the back button + */ + function checkHash() { + + var hash = getHash(); + + if (hash !== options.currentPage && loaded.indexOf(hash) > -1) { + options.currentPage = hash; + self.draw(); + } + } + + function getHash() { + var hash = parseInt(location.hash.substring(1), 10) - 1 || 0; + if (hash < 0) { + setHash(0); + hash = 0; + } + return hash; + } + + function setHash(pageNo) { + location.hash = pageNo; + } + + // page hash on first load + var hash = getHash(); + + /** + * Setup the canvas element for use throughout the class. + */ + function init() { + + // setup canvas + canvas = document.getElementById(canvas_id); + context = canvas.getContext('2d'); + + // render user controls + if (controlsRendered === false) { + self.renderControls(); + self.tocCreate(no_pages); + controlsRendered = true; + } + + // add page controls + window.addEventListener('keydown', self.navigation, false); + window.addEventListener('hashchange', checkHash, false); + + // fill in metadata + options.session.pagecount = srcs.length; + $('.book-title').text(options.session.title); + $('.book-format').text(options.session.format); + $('.book-pagecount').text(options.session.pagecount); + $('.book-size').text(options.session.size); + } + + window.addEventListener('touchstart', function (e) { + var $el = $(e.target); + if ($el.attr('id') === 'viewer') { + self.toggleToolbar(); + } + }, false); + + /** + * Connect controls to events + */ + ComicBook.prototype.renderControls = function () { + + var controls = {}, $toolbar; + + // set values from preferences or defaults + // do this before connecting listeners to avoid triggering callbacks + for (var prop in options.enhance) { + if(options.enhance.hasOwnProperty(prop)) { + switch (prop) { + case 'brightness': + document.getElementById('brightness').value = options.enhance.brightness['brightness']; + document.getElementById('contrast').value = options.enhance.brightness['contrast']; + break; + case 'sharpen': + document.getElementById('sharpen').value = options.enhance.sharpen['strength']; + break; + case 'desaturate': + $('#image-desaturate').prop('checked', true); + break; + case 'removenoise': + $('#image-removenoise').prop('checked', true); + break; + default: + console.log("unknown enhancement: " + JSON.stringify(prop)); + } + } + }; + + // thumbnail controls + $('#thumbnail-generate').prop('checked', options.thumbnails); + $('#thumbnail-width').val(options.thumbnailWidth); + if (!options.thumbnails) { + $('#toc-populate').addClass('open'); + $('#thumbnail-width').prop('disabled', true); + } + + // connect callbacks + $('.control').each(function () { + + controls[$(this).attr('name')] = $(this); + + // add event listeners to controls that specify callbacks + $(this).find('*').andSelf().filter('[data-action][data-trigger]').each(function () { + + var $this = $(this); + var trigger = $this.data('trigger'); + var action = $this.data('action'); + + // trigger a direct method if exists + if (typeof self[$this.data('action')] === 'function') { + $this.on(trigger, self[action]); + } + + // throw an event to be caught outside if the app code + $this.on(trigger, function (e) { + $(self).trigger(trigger, e); + }); + }); + }); + + this.controls = controls; + + $toolbar = this.getControl('toolbar'); + $toolbar + .find('.manga-' + options.manga).show().end() + .find('.manga-' + !options.manga).hide().end() + .find('.layout').hide().end().find('.layout-' + options.displayMode).show().end() + .find('.fullscreen-' + options.fullscreen).show().end() + .find('.fullscreen-' + !options.fullscreen).hide(); + + if (parent !== window) { + $('.close').removeClass('hide'); + $('.close').on('click', function() { parent.OCA.Files_Reader.Plugin.hide(); }); + } + }; + + ComicBook.prototype.getControl = function (control) { + if (typeof this.controls[control] !== 'object') { + throw ComicBookException.UNDEFINED_CONTROL + ' ' + control; + } + return this.controls[control]; + }; + + ComicBook.prototype.showControl = function (control) { + this.getControl(control).show().addClass('open'); + }; + + ComicBook.prototype.hideControl = function (control) { + this.getControl(control).removeClass('open').hide(); + }; + + ComicBook.prototype.toggleControl = function (control) { + this.getControl(control).toggle().toggleClass('open'); + }; + + ComicBook.prototype.toggleLayout = function () { + self.setLayout((options.displayMode === 'single') ? 'double' : 'single'); + }; + + ComicBook.prototype.setLayout = function (layout) { + var $toolbar = self.getControl('toolbar'); + options.displayMode = (layout === 'single') ? 'single' : 'double'; + + $toolbar.find('.layout').hide().end().find('.layout-' + options.displayMode).show(); + + self.drawPage(); + }; + + + /** + * Create thumbnail for image + * + * @return Image + */ + ComicBook.prototype.getThumb = function (image) { + var thumb = new Image(); + var scale = image.width / options.thumbnailWidth; + tcv.width = options.thumbnailWidth; + tcv.height = Math.floor(image.height / scale); + tctx.drawImage(image, 0, 0, tcv.width, tcv.height); + thumb.src = tcv.toDataURL(); + tctx.clearRect(0, 0, tcv.width, tcv.height); + + return thumb; + }; + + /** + * Create empty TOC with placeholder images + */ + ComicBook.prototype.tocCreate = function (no_pages) { + // use small image with reasonable aspect ratio + tcv.width = 5; + tcv.height = 7; + // transparent, style with .placeholder in CSS + tctx.fillStyle = "rgba(200, 200, 200, 0)"; + tctx.fillRect(0, 0, tcv.width, tcv.height); + var imgsrc = tcv.toDataURL(); + + for(var i = 0; i < no_pages; i++) { + var item = document.createElement('li'); + item.setAttribute("id", "page-" + parseInt(i + 1)); + var placeholder = new Image(); + placeholder.src = imgsrc; + var label = document.createElement('span'); + label.innerHTML = i + 1; + item.appendChild(placeholder); + item.appendChild(label); + toc.appendChild(item); + } + }; + + /** + * Insert thumbnail into TOC + */ + ComicBook.prototype.tocInsert = function (image, page, replace) { + var placeholder = toc.children[page].firstChild; + if (replace === true) { + placeholder.parentNode.replaceChild( + self.getThumb(image), + placeholder + ); + } + + toc.children[page].addEventListener('click', function (e) { + self.drawPage(page + 1, true); + }); + }; + + /** + * Populate TOC on demand + */ + ComicBook.prototype.tocPopulate = function () { + var i = 0; + while (i < srcs.length) { + self.tocInsert(pages[i], i, true); + i++; + } + + // set, but don't save for future sessions + options.thumbnails = true; + $('#toc-populate').removeClass('open'); + }; + + /** + * Get the image for a given page. + * + * @return Image + */ + ComicBook.prototype.getPage = function (i) { + + if (i < 0 || i > srcs.length - 1) { + throw ComicBookException.INVALID_PAGE + ' ' + i; + } + + if (typeof pages[i] === 'object') { + return pages[i]; + } else { + page_requested = i; + this.showControl('loadingOverlay'); + } + }; + + /** + * @see #preload + */ + ComicBook.prototype.draw = function () { + + init(); + + // resize navigation controls + $('.navigate').outerHeight(window.innerHeight); + $('.overlay').outerWidth(windowWidth()).height(window.innerHeight); + + // preload images if needed + if (pages.length !== no_pages) { + this.preload(); + } else { + this.drawPage(); + } + }; + + /** + * Zoom the canvas + * + * @param new_scale {Number} Scale the canvas to this ratio + */ + ComicBook.prototype.zoom = function (new_scale) { + options.zoomMode = 'manual'; + scale = new_scale; + if (typeof this.getPage(options.currentPage) === 'object') { + this.drawPage(); + } + }; + + ComicBook.prototype.zoomIn = function () { + self.zoom(scale + 0.1); + }; + + ComicBook.prototype.zoomOut = function () { + self.zoom(scale - 0.1); + }; + + ComicBook.prototype.fitWidth = function () { + options.zoomMode = 'fitWidth'; + self.drawPage(); + }; + + ComicBook.prototype.fitWindow = function () { + options.zoomMode = 'fitWindow'; + self.drawPage(); + }; + + /** + * Preload all images, draw the page only after a given number have been loaded. + * + * @see #drawPage + */ + ComicBook.prototype.preload = function () { + + var i = options.currentPage; // the current page counter for this method + var rendered = false; + var queue = []; + + this.showControl('loadingOverlay'); + + function loadImage(i) { + + var page = new Image(); + page.src = srcs[i]; + + page.onload = function () { + + pages[i] = this; + + self.tocInsert(this, i, options.thumbnails); + + loaded.push(i); + + $('#cbr-progress-bar .progressbar-value').css('width', Math.floor((loaded.length / no_pages) * 100) + '%'); + + // double page mode needs an extra page added + var buffer = (options.displayMode === 'double' && options.currentPage < srcs.length - 1) ? 1 : 0; + + // start rendering the comic when the requested page is ready + if ((rendered === false && ($.inArray(options.currentPage + buffer, loaded) !== -1) || + (typeof page_requested === 'number' && $.inArray(page_requested, loaded) !== -1))) { + // if the user is waiting for a page to be loaded, render that one instead of the default options.currentPage + if (typeof page_requested === 'number') { + options.currentPage = page_requested - 1; + page_requested = false; + } + + self.drawPage(); + self.hideControl('loadingOverlay'); + rendered = true; + } + + if (queue.length) { + loadImage(queue[0]); + queue.splice(0, 1); + } else { + $('#cbr-status').delay(500).fadeOut(); + } + }; + } + + // loads pages in both directions so you don't have to wait for all pages + // to be loaded before you can scroll backwards + function preload(start, stop) { + + var j = 0; + var count = 1; + var forward = start; + var backward = start - 1; + + while (forward <= stop) { + + if (count > options.forward_buffer && backward > -1) { + queue.push(backward); + backward--; + count = 0; + } else { + queue.push(forward); + forward++; + } + count++; + } + + while (backward > -1) { + queue.push(backward); + backward--; + } + + loadImage(queue[j]); + } + + preload(i, srcs.length - 1); + }; + + ComicBook.prototype.pageLoaded = function (page_no) { + return (typeof loaded[page_no - 1] !== 'undefined'); + }; + + /** + * Draw the current page in the canvas + */ + ComicBook.prototype.drawPage = function (page_no, reset_scroll) { + + var scrollY; + + reset_scroll = (typeof reset_scroll !== 'undefined') ? reset_scroll : true; + scrollY = reset_scroll ? 0 : window.scrollY; + + // if a specific page is given try to render it, if not bail and wait for preload() to render it + if (typeof page_no === 'number' && page_no < srcs.length && page_no > 0) { + options.currentPage = page_no - 1; + if (!this.pageLoaded(page_no)) { + this.showControl('loadingOverlay'); + return; + } + } + + if (options.currentPage < 0) { + options.currentPage = 0; + } + + var zoom_scale; + var offsetW = 0, + offsetH = 0; + + var page = self.getPage(options.currentPage); + var page2 = false; + + if (options.displayMode === 'double' && options.currentPage < srcs.length - 1) { + page2 = self.getPage(options.currentPage + 1); + } + + if (typeof page !== 'object') { + throw ComicBookException.INVALID_PAGE_TYPE + ' ' + typeof page; + } + + var width = page.width, + height = page.height; + + // reset the canvas to stop duplicate pages showing + canvas.width = 0; + canvas.height = 0; + + // show double page spreads on a single page + is_double_page_spread = ( + typeof page2 === 'object' && + (page.width > page.height || page2.width > page2.height) && + options.displayMode === 'double' + ); + if (is_double_page_spread) { + options.displayMode = 'single'; + } + + if (options.displayMode === 'double') { + + // for double page spreads, factor in the width of both pages + if (typeof page2 === 'object') { + width += page2.width; + } + + // if this is the last page and there is no page2, still keep the canvas wide + else { + width += width; + } + } + + // update the page scale if a non manual mode has been chosen + switch (options.zoomMode) { + + case 'manual': + document.body.style.overflowX = 'auto'; + zoom_scale = (options.displayMode === 'double') ? scale * 2 : scale; + break; + + case 'fitWidth': + document.body.style.overflowX = 'hidden'; + + // scale up if the window is wider than the page, scale down if the window + // is narrower than the page + zoom_scale = (windowWidth() > width) ? ((windowWidth() - width) / windowWidth()) + 1 : windowWidth() / width; + + // update the interal scale var so switching zoomModes while zooming will be smooth + scale = zoom_scale; + break; + + case 'fitWindow': + document.body.style.overflowX = 'hidden'; + + var width_scale = (windowWidth() > width) ? + ((windowWidth() - width) / windowWidth()) + 1 // scale up if the window is wider than the page + : + windowWidth() / width; // scale down if the window is narrower than the page + var windowHeight = window.innerHeight; + var height_scale = (windowHeight > height) ? + ((windowHeight - height) / windowHeight) + 1 // scale up if the window is wider than the page + : + windowHeight / height; // scale down if the window is narrower than the page + + zoom_scale = (width_scale > height_scale) ? height_scale : width_scale; + scale = zoom_scale; + break; + + default: + throw ComicBookException.INVALID_ZOOM_MODE + ' ' + options.zoomMode; + } + + var canvas_width = page.width * zoom_scale; + var canvas_height = page.height * zoom_scale; + + var page_width = (options.zoomMode === 'manual') ? page.width * scale : canvas_width; + var page_height = (options.zoomMode === 'manual') ? page.height * scale : canvas_height; + + canvas_height = page_height; + + // make sure the canvas is always at least full screen, even if the page is more narrow than the screen + canvas.width = (canvas_width < windowWidth()) ? windowWidth() : canvas_width; + canvas.height = (canvas_height < window.innerHeight) ? window.innerHeight : canvas_height; + + // always keep pages centered + if (options.zoomMode === 'manual' || options.zoomMode === 'fitWindow') { + + // work out a horizontal position + if (canvas_width < windowWidth()) { + offsetW = (windowWidth() - page_width) / 2; + if (options.displayMode === 'double') { + offsetW = offsetW - page_width / 2; + } + } + + // work out a vertical position + if (canvas_height < window.innerHeight) { + offsetH = (window.innerHeight - page_height) / 2; + } + } + + // in manga double page mode reverse the page(s) + if (options.manga && options.displayMode === 'double' && typeof page2 === 'object') { + var tmpPage = page; + var tmpPage2 = page2; + page = tmpPage2; + page2 = tmpPage; + } + + // draw the page(s) + context.drawImage(page, offsetW, offsetH, page_width, page_height); + if (options.displayMode === 'double' && typeof page2 === 'object') { + context.drawImage(page2, page_width + offsetW, offsetH, page_width, page_height); + } + + this.pixastic = new Pixastic(context, options.vendorPath + 'pixastic/'); + + // apply any image enhancements previously defined + $.each(options.enhance, function (action, options) { + self.enhance[action](options); + }); + + var current_page = + (options.displayMode === 'double' && + options.currentPage + 2 <= srcs.length) ? (options.currentPage + 1) + '-' + (options.currentPage + 2) : options.currentPage + 1; + + this.getControl('toolbar') + .find('.current-page').text(current_page) + .end() + .find('.page-count').text(srcs.length); + + // revert page mode back to double if it was auto switched for a double page spread + if (is_double_page_spread) { + options.displayMode = 'double'; + } + + // disable the fit width button if needed + $('button.cbr-fit-width').attr('disabled', (options.zoomMode === 'fitWidth')); + $('button.cbr-fit-window').attr('disabled', (options.zoomMode === 'fitWindow')); + + // disable prev/next buttons if not needed + $('.navigate').show(); + if (options.currentPage === 0) { + if (options.manga) { + $('.navigate-left').show(); + $('.navigate-right').hide(); + } else { + $('.navigate-left').hide(); + $('.navigate-right').show(); + } + } + + if (options.currentPage === srcs.length - 1 || (typeof page2 === 'object' && options.currentPage === srcs.length - 2)) { + if (options.manga) { + $('.navigate-left').hide(); + $('.navigate-right').show(); + } else { + $('.navigate-left').show(); + $('.navigate-right').hide(); + } + } + + if (options.currentPage !== getHash()) { + $(this).trigger('navigate'); + } + + // update hash location + if (getHash() !== options.currentPage) { + setHash(options.currentPage + 1); + } + + options.session.setCursor(options.currentPage); + }; + + /** + * Increment the counter and draw the page in the canvas + * + * @see #drawPage + */ + ComicBook.prototype.drawNextPage = function () { + + var page; + + try { + page = self.getPage(options.currentPage + 1); + } catch (e) { + } + + if (!page) { + return false; + } + + if (options.currentPage + 1 < pages.length) { + options.currentPage += (options.displayMode === 'single' || is_double_page_spread) ? 1 : 2; + try { + self.drawPage(); + } catch (e) { + } + } + + // make sure the top of the page is in view + window.scroll(0, 0); + }; + + /** + * Decrement the counter and draw the page in the canvas + * + * @see #drawPage + */ + ComicBook.prototype.drawPrevPage = function () { + + var page; + + try { + page = self.getPage(options.currentPage - 1); + } catch (e) { + } + + if (!page) { + return false; + } + + is_double_page_spread = (page.width > page.height); // need to run double page check again here as we are going backwards + + if (options.currentPage > 0) { + options.currentPage -= (options.displayMode === 'single' || is_double_page_spread) ? 1 : 2; + self.drawPage(); + } + + // make sure the top of the page is in view + window.scroll(0, 0); + }; + + /* default settings */ + + ComicBook.prototype.thumbnails = function() { + if ($(this).is(':checked')) { + options.thumbnails = true; + document.getElementById('thumbnail-width').disabled = false; + } else { + options.thumbnails = false; + document.getElementById('thumbnail-width').disabled = true; + } + + options.session.setDefault("thumbnails", options.thumbnails); + }; + + ComicBook.prototype.thumbnailWidth = function() { + options.thumbnailWidth = $(this).val(); + options.session.setDefault("thumbnailWidth", options.thumbnailWidth); + }; + + ComicBook.prototype.sidebarWide = function (wide) { + if (typeof(wide) !== "boolean") { + wide = ($(this).is(':checked') === true); + } + + if (wide) { + options.sidebarWide = true; + document.getElementById('sidebar').classList.add('wide'); + } else { + options.sidebarWide = false; + document.getElementById('sidebar').classList.remove('wide'); + self.sidebarWidth(0); + } + + options.session.setDefault("sidebarWide", options.sidebarWide); + }; + + ComicBook.prototype.sidebarWidth = function(width) { + if (typeof(width) !== "number") { + width = $(this).val(); + } + options.sidebarWidth = width; + + // width === 0 is interpreted as 'use value from CSS' + if (options.sidebarWidth > 0) { + document.getElementById('sidebar').style.width = options.sidebarWidth + "%"; + } else { + document.getElementById('sidebar').style.width = ""; + } + + options.session.setDefault("sidebarWidth", options.sidebarWidth); + }; + + ComicBook.prototype.resetSidebar = function () { + self.sidebarWide(false); + self.sidebarWidth(0); + }; + + /* book-specific settings */ + + ComicBook.prototype.brightness = function () { + var $brightness = { + brightness: $('#brightness').val(), + contrast: $('#contrast').val() + }; + + self.enhance.brightness($brightness); + options.enhance.brightness = $brightness; + options.session.setPreference("enhance",options.enhance); + }; + + ComicBook.prototype.sharpen = function () { + options.enhance.sharpen = $(this).val(); + self.enhance.sharpen({ + strength: options.enhance.sharpen + }); + + options.session.setPreference("enhance",options.enhance); + }; + + ComicBook.prototype.desaturate = function () { + if ($(this).is(':checked')) { + options.enhance.desaturate = {}; + self.enhance.desaturate(); + } else { + delete options.enhance.desaturate; + self.enhance.resaturate(); + } + + options.session.setPreference("enhance",options.enhance); + }; + + ComicBook.prototype.removenoise = function () { + if ($(this).is(':checked')) { + options.enhance.removenoise = {}; + self.enhance.removenoise(); + } else { + delete options.enhance.removenoise; + self.enhance.unremovenoise(); + } + + options.session.setPreference("enhance",options.enhance); + }; + + ComicBook.prototype.resetEnhancements = function () { + self.enhance.reset(); + options.session.setPreference("enhance",options.enhance); + }; + + /** + * Apply image enhancements to the canvas. + */ + ComicBook.prototype.enhance = { + + /** + * Reset enhancements. + * This can reset a specific enhancement if the method name is passed, or + * it will reset all. + * + * @param method {string} the specific enhancement to reset + */ + reset: function (method) { + if (!method) { + options.enhance = {}; + } else { + delete options.enhance[method]; + } + self.drawPage(null, false); + }, + + /** + * Pixastic progress callback + * @param {float} progress + */ + // progress: function (progress) { + progress: function () { + // console.info(Math.floor(progress * 100)); + }, + + /** + * Pixastic on complete callback + */ + done: function () { + + }, + + /** + * Adjust brightness / contrast + * + * params + * brightness (int) -150 to 150 + * contrast: (float) -1 to infinity + * + * @param {Object} params Brightness & contrast levels + * @param {Boolean} reset Reset before applying more enhancements? + */ + brightness: function (params, reset) { + + if (reset !== false) { + this.reset('brightness'); + } + + // merge user options with defaults + var opts = merge({ + brightness: 0, + contrast: 0 + }, params); + + options.enhance.brightness = opts; + + // run the enhancement + self.pixastic.brightness({ + brightness: opts.brightness, + contrast: opts.contrast + }).done(this.done, this.progress); + }, + + /** + * Force black and white + */ + desaturate: function () { + options.enhance.desaturate = {}; + self.pixastic.desaturate().done(this.done, this.progress); + }, + + /** + * Undo desaturate + */ + resaturate: function () { + delete options.enhance.desaturate; + self.drawPage(null, false); + }, + + /** + * Sharpen + * + * options: + * strength: number (-1 to infinity) + * + * @param {Object} options + */ + sharpen: function (params) { + + this.desharpen(); + + var opts = merge({ + strength: 0 + }, params); + + options.enhance.sharpen = opts; + + self.pixastic.sharpen3x3({ + strength: opts.strength + }).done(this.done, this.progress); + }, + + desharpen: function () { + delete options.enhance.sharpen; + self.drawPage(null, false); + }, + + /** + * Remove noise + */ + removenoise: function () { + options.enhance.removenoise = {}; + self.pixastic.removenoise().done(this.done, this.progress); + }, + + unremovenoise: function () { + delete options.enhance.removenoise; + self.drawPage(null, false); + } + }; + + ComicBook.prototype.navigation = function (e) { + + // disable navigation when the overlay is showing + if ($('#cbr-loading-overlay').is(':visible')) { + return false; + } + + var side = false, page_no = false; + + switch (e.type) { + + case 'click': + side = e.currentTarget.getAttribute('data-navigate-side'); + break; + + case 'keydown': + + // console.log("keydown: " + e.keyCode); + + switch (options.keyboard[e.keyCode]) { + case 'previous': + side = 'left'; + break; + case 'next': + side = 'right'; + break; + case 'first': + page_no = 1; + break; + case 'last': + page_no = srcs.length - 1; + break; + case 'sidebar': + self.toggleSidebar(); + break; + case 'toolbar': + self.toggleToolbar(); + break; + case 'toggleLayout': + self.toggleLayout(); + break; + case 'toggleFullscreen': + self.toggleFullscreen(); + break; + case 'closeSidebar': + self.closeSidebar(); + break; + default: + /* + throw ComicBookException.INVALID_NAVIGATION_EVENT + ' ' + e.type; + */ + } + break; + + default: + throw ComicBookException.INVALID_NAVIGATION_EVENT + ' ' + e.type; + } + + if (side) { + + e.stopPropagation(); + + // western style (left to right) + if (!options.manga) { + if (side === 'left') { + self.drawPrevPage(); + } + if (side === 'right') { + self.drawNextPage(); + } + } + // manga style (right to left) + else { + if (side === 'left') { + self.drawNextPage(); + } + if (side === 'right') { + self.drawPrevPage(); + } + } + + return false; + } + + if (page_no) { + self.drawPage(page_no, true); + return false; + } + }; + + ComicBook.prototype.toggleReadingMode = function () { + options.manga = !options.manga; + self.getControl('toolbar') + .find('.manga-' + options.manga).show().end() + .find('.manga-' + !options.manga).hide(); + options.session.setPreference("manga",options.manga); + }; + + ComicBook.prototype.toggleToolbar = function () { + self.toggleControl('toolbar'); + }; + + ComicBook.prototype.openSidebar = function () { + $('.sidebar').addClass('open'); + $('.toolbar').addClass('open'); + self.showControl('busyOverlay'); + self.scrollToc(); + }; + + ComicBook.prototype.closeSidebar = function () { + $('.sidebar').removeClass('open'); + $('.toolbar').removeClass('open'); + self.toggleToolbar(); + self.hideControl('busyOverlay'); + }; + + ComicBook.prototype.toggleSidebar = function () { + $('.sidebar').hasClass('open') + ? self.closeSidebar() + : self.openSidebar(); + }; + + ComicBook.prototype.toggleFullscreen = function () { + options.fullscreen = !options.fullscreen; + self.getControl('toolbar') + .find('.fullscreen-' + options.fullscreen).show().end() + .find('.fullscreen-' + !options.fullscreen).hide(); + if (options.fullscreen) { + screenfull.request($('#container')[0]); + } else { + screenfull.exit($('#container')[0]); + } + }; + + + /* + * Scroll TOC to page (default: current page) + */ + ComicBook.prototype.scrollToc = function (page) { + if (page === undefined) { + page = options.currentPage; + } + + document.getElementById('toc').parentNode.scrollTop = + document.getElementById('page-' + String(page + 1)).offsetTop + - Math.floor($('.panels').height() * 1.5); + }; + + ComicBook.prototype.showToc = function () { + self.getControl('sidebar') + .find('.open').removeClass('open').end() + .find('.toc-view').addClass('open'); + if (!options.thumbnails) { + $('#toc-populate').addClass('open'); + } + }; + + ComicBook.prototype.showBookSettings = function () { + self.getControl('sidebar') + .find('.open').removeClass('open').end() + .find('.book-settings-view').addClass('open'); + }; + + ComicBook.prototype.showSettings = function () { + self.getControl('sidebar') + .find('.open').removeClass('open').end() + .find('.settings-view').addClass('open'); + }; + + ComicBook.prototype.destroy = function () { + + $.each(this.controls, function (name, $control) { + $control.remove(); + }); + + canvas.width = 0; + canvas.height = 0; + + window.removeEventListener('keydown', this.navigation, false); + window.removeEventListener('hashchange', checkHash, false); + + setHash(''); + + // $(this).trigger('destroy'); + }; + + } + + return ComicBook; + +})(jQuery); + +(function(root, $) { + + var previousReader = root.cbReader || {}; + + var cbReader = root.cbReader = function(path, options) { + return new CBRJS.Reader(path, options); + }; + + //exports to multiple environments + if (typeof define === 'function' && define.amd) { + //AMD + define(function(){ return Reader; }); + } else if (typeof module != "undefined" && module.exports) { + //Node + module.exports = cbReader; + } + +})(window, jQuery); diff --git a/vendor/cbrjs/css/cbr.css b/vendor/cbrjs/css/cbr.css new file mode 100644 index 0000000..00d3164 --- /dev/null +++ b/vendor/cbrjs/css/cbr.css @@ -0,0 +1,454 @@ +/* reader */ + +html, body, div, span, applet, object, iframe, +h1, h2, h3, h4, h5, h6, p, blockquote, pre, +a, abbr, acronym, address, big, cite, code, +del, dfn, em, font, img, ins, kbd, q, s, samp, +small, strike, strong, sub, sup, tt, var, +b, u, i, center, +dl, dt, dd, ol, ul, li, +fieldset, form, label, legend, +table, caption, tbody, tfoot, thead, tr, th, td { + margin: 0; + padding: 0; + border: 0; + outline: 0; + font-size: 100%; + vertical-align: baseline; + background: transparent; +} +body { + line-height: 1; +} +ol, ul { + list-style: none; +} +blockquote, q { + quotes: none; +} +blockquote:before, blockquote:after, +q:before, q:after { + content: ''; + content: none; +} + +/* remember to define focus styles! */ +:focus { + outline: 0; +} + +/* remember to highlight inserts somehow! */ +ins { + text-decoration: none; +} +del { + text-decoration: line-through; +} + +/* tables still need 'cellspacing="0"' in the markup */ +table { + border-collapse: collapse; + border-spacing: 0; +} + +.cbr-control { + font-family: helvetica, arial, sans-serif; + font-size: 12px; +} + +.cbr-control { + color: #fff; + background-color: #111; + padding: 10px; + position: fixed !important; + box-shadow: 0 0 4px #000; +} + +.navigate { + top: 0; + margin: 0; + cursor: pointer; + width: 20%; + opacity: 0; + background: center no-repeat; + box-shadow: none; + padding: 0 3em; +} + +.navigate > span { + color: #000; + font-size: 10em; + background-color: rgba(255, 255, 255, 0.8); + border-radius: 1em; + top: 45%; + position: relative; +} + +body:not(.mobile) .navigate:hover { + opacity: 1; +} + +.navigate-left { + left: 0; +} + +.navigate-left > span { + float: left; +} + +.navigate-right { + right: 0; +} + +.navigate-right > span { + float: right; +} + +.toggle-controls { + cursor: pointer; + width: 20%; + height: 20%; + left: 40%; + top: 40%; + border: none; + position: fixed; +} + +#cbr-loading-overlay { + z-index: 100; + padding: 0; + width: 20px; + height: 20px; +} + +#cbr-loading-overlay > img { + width: 100%; +} + +.overlay { + opacity: 0.7; + box-shadow: none; +} + +#cbr-status { + z-index: 101; + font-size: 12px; + right: 0; + bottom: 0; + margin: 8px; + border-radius: 4px; +} + +#cbr-progress-bar { + width: 200px; +} + +#cbr-progress-bar, +#cbr-progress-bar .progressbar-value { + height: 3px; +} + +#cbr-progress-bar .progressbar-value { + width: 0; + background: #86C441; + border-color: #3E7600; +} + +* { + -webkit-user-select: none; + -webkit-touch-callout: none; + -webkit-tap-highlight-color: rgba(0,0,0,0); +} + +body { + font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; + font-size: 12px; + line-height: 20px; + color: #333; +} + +button, +input, +label { + cursor: pointer; +} + +.pull-left { + float: left; +} + +.pull-right { + float: right; +} + +.toolbar, +.panels { + position: absolute; + color: white; + /* overflow: visible; */ + background: #4e4e4e; + /* left: 0; */ + /* right: 0; */ + width: 100%; +} + +.toolbar { + /* position: fixed; */ + z-index: 99; + /* margin-bottom: 0; */ + box-shadow: 0 1px 10px rgba(0, 0, 0, 0.4); + opacity: 0; + transition: opacity 0.1s ease-in-out; + text-align: center; +} + +.toolbar .metainfo { + font-size: 1.2em; + top: 0.5em; +} + +.metainfo span { + margin: 0 0.5em; +} + +.mobile .metainfo .book-title, +.mobile .metainfo .title-separator { + display: none; +} + +body:not(.mobile) .toolbar:hover, +.mobile .toolbar, +.toolbar.open { + opacity: 1; +} + +.toolbar div { + display: inline-block; + position: relative; +} + +.toolbar .separator { + /* border: solid 1px; */ + height: 1em; + opacity: 0.5; +} + +.toolbar button, .sidebar button { + color: white; + border: none; + background-color: transparent; + padding: 0; +} + +.toolbar div > button, +.sidebar div > button { + font-size: 1.5em; + padding: 0.5em; + margin: 0; +} + +.mobile .toolbar div > button, +.mobile .sidebar div > button { + padding: 0.5em; + margin: 0; +} + +body:not(.mobile) .toolbar div > button:hover, +body:not(.mobile) .sidebar div > button:hover { + color: #8CC746; +} + +body:not(.mobile) .toolbar button[data-action=close]:hover { + color: #FF6464; +} + +.hide { + display: none !important; +} + +/* sidebar */ +.sidebar.open { + box-shadow: 3px 0px 3px 0px rgba(0, 0, 0, 0.4); + display: block; +} + +.sidebar { + background: #6b6b6b; + position: fixed; + top: 0; + min-width: 25em; + height: 100%; + overflow: hidden; + display: none; + z-index: 100; +} + +.sidebar.wide { + width: 20%; +} + +.panels { + overflow: hidden; +} + +.panels .open { + background-color: #6B6B6B; +} + +.view.open { + display: block !important; +} + +#toc-populate.open { + display: inline-block !important; + background-color: #4e4e4e; +} + +.view { + overflow-y: scroll; + display: none !important; + width: 100%; + position: absolute; + top: 3em; + bottom: 0; + text-align: center; +} + +.toc-view li { + margin: 1em; + font-family: Georgia, "Times New Roman", Times, serif; +} + +.toc-view img, .placeholder { + width: 100%; + position: relative; + background-color: #999; +} + +.toc-view span { + position: absolute; + transform: translate3d(-3em, 3em, 0); + font-size: 5em; + font-weight: bold; + color: #F8F8F8; + text-shadow: 0.05em 0.05em 0.02em rgba(70, 70, 70, 0.8); + -webkit-text-stroke: 2px black; + background-color: rgba(255,255,255,0.7); + border-radius: 1em; + box-shadow: 0 0 0.3em rgba(255,255,255,1); + padding: 0.5em; +} + +.settings-container { + text-align: left; + display: inline-block; + width: 95%; + font-size: 1em; + background: #F8F8F8; + color: #111; + padding-top: 1em; + padding-bottom: 1em; + margin-top: 1em; + border-radius: 4px; + box-shadow: 0 1px 10px rgba(0, 0, 0, 0.4); +} + +.settings-container label { + margin-right: 1em; +} + +.settings-container > label { + font-weight: bold; + width: 100%; + display: inline-block; + margin-bottom: 1em; + text-align: center; +} + +.view .control-group input[type=range] { + width: 80%; + float: right; + margin: 0; +} + +.view .control-group { + padding: 1em; +} + +.view .sliders { + font-size: 1.5em; +} + +.view .control-group span { + float: left; + margin: 0 2px; + clear: both; +} + +.view .control-group input[type=reset] { + float: right; +} + +.metadata { + padding: 1em; + margin: 1em; +} + +.metadata table { + font-size: 1.2em; + color: #F8F8F8; +} + +.metadata td:nth-child(1) { + font-weight: bold; + padding-right: 1em; +} + +/* END sidebar */ + +/* progressbar (loading/unarchiving) */ + +.progress, .bar { + width: 100%; + height: 0.3em; + margin: 0; + padding: 0; + display: inline-block; +} +.progress { + border: none; +} +.bar { + width: 0; + background-color: red; + box-shadow: 0px 1px 3px rgba(0,0,0,.6); +} + +.message { + margin: 3em; +} + +.message-icons { + font-size: 3em; + color: lightgrey; + vertical-align: middle; +} + +.message-text { + font-size: 1.5em; + color: black; +} + +.active { + color:black; +} + +.ok { + color:green; +} + +.error { + color:red; +} + +/* END progressbar */ diff --git a/vendor/cbrjs/css/idevice.css b/vendor/cbrjs/css/idevice.css new file mode 100644 index 0000000..e8da954 --- /dev/null +++ b/vendor/cbrjs/css/idevice.css @@ -0,0 +1,4 @@ +.view { + overflow-y: scroll; + -webkit-overflow-scrolling: touch; +} diff --git a/vendor/cbrjs/img/loading.gif b/vendor/cbrjs/img/loading.gif new file mode 100644 index 0000000..95350aa Binary files /dev/null and b/vendor/cbrjs/img/loading.gif differ diff --git a/vendor/epubjs/css/annotations.css b/vendor/epubjs/css/annotations.css new file mode 100644 index 0000000..ae74f91 --- /dev/null +++ b/vendor/epubjs/css/annotations.css @@ -0,0 +1,8 @@ +.ui-loader { + display: none; +} + +.annotator-hl { + box-shadow: none !important; + cursor: pointer !important; +} \ No newline at end of file diff --git a/vendor/epubjs/css/font/fontello.eot b/vendor/epubjs/css/font/fontello.eot new file mode 100644 index 0000000..f63ffa0 Binary files /dev/null and b/vendor/epubjs/css/font/fontello.eot differ diff --git a/vendor/epubjs/css/font/fontello.svg b/vendor/epubjs/css/font/fontello.svg new file mode 100644 index 0000000..2db1398 --- /dev/null +++ b/vendor/epubjs/css/font/fontello.svg @@ -0,0 +1,33 @@ + + + \ No newline at end of file diff --git a/vendor/epubjs/css/font/fontello.ttf b/vendor/epubjs/css/font/fontello.ttf new file mode 100644 index 0000000..95715f8 Binary files /dev/null and b/vendor/epubjs/css/font/fontello.ttf differ diff --git a/vendor/epubjs/css/font/fontello.woff b/vendor/epubjs/css/font/fontello.woff new file mode 100644 index 0000000..084f0c5 Binary files /dev/null and b/vendor/epubjs/css/font/fontello.woff differ diff --git a/vendor/epubjs/css/idevice.css b/vendor/epubjs/css/idevice.css new file mode 100644 index 0000000..680c7f8 --- /dev/null +++ b/vendor/epubjs/css/idevice.css @@ -0,0 +1,14 @@ +.notes, +.search-results, +.view { + overflow-y: scroll; + -webkit-overflow-scrolling: touch; +} + +.search-results { + height: calc(100% - 5em); +} + +.notes { + height: calc(100% - 9em); +} diff --git a/vendor/epubjs/css/main.css b/vendor/epubjs/css/main.css new file mode 100644 index 0000000..eae2183 --- /dev/null +++ b/vendor/epubjs/css/main.css @@ -0,0 +1,347 @@ +html, body, div, span, applet, object, iframe, +h1, h2, h3, h4, h5, h6, p, blockquote, pre, +a, abbr, acronym, address, big, cite, code, +del, dfn, em, font, img, ins, kbd, q, s, samp, +small, strike, strong, sub, sup, tt, var, +b, u, i, center, +dl, dt, dd, ol, ul, li, +fieldset, form, label, legend, +table, caption, tbody, tfoot, thead, tr, th, td, +fieldset { + margin: 0; + padding: 0; + border: 0; + outline: 0; + font-size: 100%; + vertical-align: baseline; + background: transparent; +} + +body { + background: #4e4e4e; + overflow: hidden; + font-style: +} + +#main { + position: absolute; + width: 100%; + height: 100%; + right: 0; + border-radius: 5px; + background: #fff; + overflow: hidden; + -webkit-transition: -webkit-transform .4s, width .2s; + -moz-transition: -webkit-transform .4s, width .2s; + + -moz-box-shadow: inset 0 0 50px rgba(0,0,0,.1); + -webkit-box-shadow: inset 0 0 50px rgba(0,0,0,.1); + box-shadow: inset 0 0 50px rgba(0,0,0,.1); +} + +#titlebar { + padding: 0.5em; + color: #4f4f4f; + font-weight: 100; + font-family: Georgia, "Times New Roman", Times, serif; + opacity: .5; + text-align: center; + -webkit-transition: opacity .5s; + -moz-transition: opacity .5s; + z-index: 10; + position: fixed; + width: 100%; +} + +#titlebar:hover { + opacity: 1; +} + +#titlebar a { + width: 1em; + height: 1em; + overflow: hidden; + display: inline-block; + opacity: .5; + padding: 0.2em; + border-radius: 0.2em; + border: 1px rgba(0,0,0,0) solid; +} + +#titlebar a::before { + visibility: visible; +} + +#titlebar a:hover { + opacity: .8; + border: 1px rgba(0,0,0,.2) solid; +} + +#titlebar a:active { + opacity: 1; + color: rgba(0,0,0,.6); + box-shadow: inset 0 0 6px rgba(155,155,155,.8); +} + +#book-title { + font-weight: 600; +} + +#title-separator { + display: none; +} + +#title-controls, +#opener { + margin-left: 0.3em; + margin-right: 0.3em; + position: fixed; + top: 0.3em; +} + +#opener { + left: 0; +} + +#metainfo { + position: fixed; + /* width: 80%; + left: 10%; */ + width: 50%; + width: calc(100% - 7.5em); + left: 1.5em; + top: 0.3em; + padding: 0.2em; + height: 1em; + overflow: hidden; + text-align: center; +} + +#title-controls { + right: 0; +} + +#viewer { + width: 80%; + height: 80%; + top: 10%; + margin: auto; + max-width: 72em; + z-index: 2; + position: relative; + overflow: hidden; +} + +#viewer iframe { + border: none; +} + +#prev, #next { + position: absolute; + top: 10%; + height: 80%; + margin: 0; +} + +.touch_nav { + width: 35%; +} + +.arrow div { + display: table-cell; + vertical-align: middle; +} + + +#prev { + left: 0; + padding-left: 2em; +} + +#next { + right: 0; + padding-right: 2em; + text-align: right; +} + +.arrow { + font-size: 64px; + /* color: #E2E2E2; */ + font-family: arial, sans-serif; + font-weight: bold; + cursor: pointer; + display: table; + z-index: 3; + opacity: 0.2; +} + +.arrow:hover { + /* color: #777; */ + opacity: 0.5; +} + +.arrow:active, +.arrow.active { + color: #000; +} + +#main.closed { + transform: translate(25em, 0); +} + +#main.single { + width: calc(100% - 25em); +} + +#divider { + position: absolute; + width: 1px; + border-right: 1px #000 solid; + height: 80%; + z-index: 100; + left: 50%; + margin-left: -1px; + top: 10%; + opacity: .15; + box-shadow: -2px 0 15px rgba(0, 0, 0, 1); + display: none; +} + +#divider.show { + display: block; +} + +#loader { + position: absolute; + z-index: 10; + left: 50%; + top: 50%; + margin: -33px 0 0 -33px; +} + +.pull-left { + float: left; +} + +.pull-right { + float: right; +} + +.highlight { + background-color: yellow; +} + +.overlay { + position: fixed; + width: 100%; + height: 100%; + visibility: hidden; + top: 0; + left: 0; + z-index: 1000; + opacity: 0; + background: rgba(255,255,255,0.8); + -webkit-transition: all 0.3s; + -moz-transition: all 0.3s; + transition: all 0.3s; +} + +.hide { + display: none !important; +} + +.translucent { + opacity: 0 !important; +} + +@media only screen and (max-width: 1040px) { +/* + #viewer{ + width: 50%; + margin-left: 25%; + } + */ + #divider, + #divider.show { + display: none; + } +} + +@media only screen and (max-width: 900px) { +/* + #viewer{ + width: 60%; + margin-left: 20%; + } +*/ + #prev { + padding-left: 20px; + } + + #next { + padding-right: 20px; + } +} + +@media only screen and (max-width: 550px) { +/* + #viewer{ + width: 80%; + margin-left: 10%; + } + */ + #viewer { + width: 95%; + } + + #prev { + padding-left: 0; + } + + #next { + padding-right: 0; + } + + .arrow div { + text-indent: 100%; + white-space: nowrap; + overflow: hidden; + } + + /* + #main { + -webkit-transform: translate(0, 0); + -moz-transform: translate(0, 0); + -webkit-transition: -webkit-transform .3s; + -moz-transition: -moz-transform .3s; + } + + #main.closed { + -webkit-transform: translate(260px, 0); + -moz-transform: translate(260px, 0); + } + */ + #titlebar { + /* font-size: 16px; */ + /* margin: 0 50px 0 50px; */ + } + + #metainfo span { + font-size: 0.5em; + } + /* + #tocView { + width: 260px; + } + + #tocView li { + font-size: 12px; + } + + #tocView > ul{ + padding-left: 10px; + -webkit-padding-start:; + } + */ +} + diff --git a/vendor/epubjs/css/normalize.css b/vendor/epubjs/css/normalize.css new file mode 100644 index 0000000..c3e014d --- /dev/null +++ b/vendor/epubjs/css/normalize.css @@ -0,0 +1,505 @@ +/*! normalize.css v1.0.1 | MIT License | git.io/normalize */ + +/* ========================================================================== + HTML5 display definitions + ========================================================================== */ + +/* + * Corrects `block` display not defined in IE 6/7/8/9 and Firefox 3. + */ + +article, +aside, +details, +figcaption, +figure, +footer, +header, +hgroup, +nav, +section, +summary { + display: block; +} + +/* + * Corrects `inline-block` display not defined in IE 6/7/8/9 and Firefox 3. + */ + +audio, +canvas, +video { + display: inline-block; + *display: inline; + *zoom: 1; +} + +/* + * Prevents modern browsers from displaying `audio` without controls. + * Remove excess height in iOS 5 devices. + */ + +audio:not([controls]) { + display: none; + height: 0; +} + +/* + * Addresses styling for `hidden` attribute not present in IE 7/8/9, Firefox 3, + * and Safari 4. + * Known issue: no IE 6 support. + */ + +[hidden] { + display: none; +} + +/* ========================================================================== + Base + ========================================================================== */ + +/* + * 1. Corrects text resizing oddly in IE 6/7 when body `font-size` is set using + * `em` units. + * 2. Prevents iOS text size adjust after orientation change, without disabling + * user zoom. + */ + +html { + font-size: 100%; /* 1 */ + -webkit-text-size-adjust: 100%; /* 2 */ + -ms-text-size-adjust: 100%; /* 2 */ +} + +/* + * Addresses `font-family` inconsistency between `textarea` and other form + * elements. + */ + +html, +button, +input, +select, +textarea { + font-family: sans-serif; +} + +/* + * Addresses margins handled incorrectly in IE 6/7. + */ + +body { + margin: 0; +} + +/* ========================================================================== + Links + ========================================================================== */ + +/* + * Addresses `outline` inconsistency between Chrome and other browsers. + */ + +a:focus { + outline: thin dotted; +} + +/* + * Improves readability when focused and also mouse hovered in all browsers. + */ + +a:active, +a:hover { + outline: 0; +} + +/* ========================================================================== + Typography + ========================================================================== */ + +/* + * Addresses font sizes and margins set differently in IE 6/7. + * Addresses font sizes within `section` and `article` in Firefox 4+, Safari 5, + * and Chrome. + */ + +h1 { + font-size: 2em; + margin: 0.67em 0; +} + +h2 { + font-size: 1.5em; + margin: 0.83em 0; +} + +h3 { + font-size: 1.17em; + margin: 1em 0; +} + +h4 { + font-size: 1em; + margin: 1.33em 0; +} + +h5 { + font-size: 0.83em; + margin: 1.67em 0; +} + +h6 { + font-size: 0.75em; + margin: 2.33em 0; +} + +/* + * Addresses styling not present in IE 7/8/9, Safari 5, and Chrome. + */ + +abbr[title] { + border-bottom: 1px dotted; +} + +/* + * Addresses style set to `bolder` in Firefox 3+, Safari 4/5, and Chrome. + */ + +b, +strong { + font-weight: bold; +} + +blockquote { + margin: 1em 40px; +} + +/* + * Addresses styling not present in Safari 5 and Chrome. + */ + +dfn { + font-style: italic; +} + +/* + * Addresses styling not present in IE 6/7/8/9. + */ + +mark { + background: #ff0; + color: #000; +} + +/* + * Addresses margins set differently in IE 6/7. + */ + +p, +pre { + margin: 1em 0; +} + +/* + * Corrects font family set oddly in IE 6, Safari 4/5, and Chrome. + */ + +code, +kbd, +pre, +samp { + font-family: monospace, serif; + _font-family: 'courier new', monospace; + font-size: 1em; +} + +/* + * Improves readability of pre-formatted text in all browsers. + */ + +pre { + white-space: pre; + white-space: pre-wrap; + word-wrap: break-word; +} + +/* + * Addresses CSS quotes not supported in IE 6/7. + */ + +q { + quotes: none; +} + +/* + * Addresses `quotes` property not supported in Safari 4. + */ + +q:before, +q:after { + content: ''; + content: none; +} + +/* + * Addresses inconsistent and variable font size in all browsers. + */ + +small { + font-size: 80%; +} + +/* + * Prevents `sub` and `sup` affecting `line-height` in all browsers. + */ + +sub, +sup { + font-size: 75%; + line-height: 0; + position: relative; + vertical-align: baseline; +} + +sup { + top: -0.5em; +} + +sub { + bottom: -0.25em; +} + +/* ========================================================================== + Lists + ========================================================================== */ + +/* + * Addresses margins set differently in IE 6/7. + */ + +dl, +menu, +ol, +ul { + margin: 1em 0; +} + +dd { + margin: 0 0 0 40px; +} + +/* + * Addresses paddings set differently in IE 6/7. + */ + +menu, +ol, +ul { + padding: 0 0 0 40px; +} + +/* + * Corrects list images handled incorrectly in IE 7. + */ + +nav ul, +nav ol { + list-style: none; + list-style-image: none; +} + +/* ========================================================================== + Embedded content + ========================================================================== */ + +/* + * 1. Removes border when inside `a` element in IE 6/7/8/9 and Firefox 3. + * 2. Improves image quality when scaled in IE 7. + */ + +img { + border: 0; /* 1 */ + -ms-interpolation-mode: bicubic; /* 2 */ +} + +/* + * Corrects overflow displayed oddly in IE 9. + */ + +svg:not(:root) { + overflow: hidden; +} + +/* ========================================================================== + Figures + ========================================================================== */ + +/* + * Addresses margin not present in IE 6/7/8/9, Safari 5, and Opera 11. + */ + +figure { + margin: 0; +} + +/* ========================================================================== + Forms + ========================================================================== */ + +/* + * Corrects margin displayed oddly in IE 6/7. + */ + +form { + margin: 0; +} + +/* + * Define consistent border, margin, and padding. + */ + +fieldset { + border: 1px solid #c0c0c0; + margin: 0 2px; + padding: 0.35em 0.625em 0.75em; +} + +/* + * 1. Corrects color not being inherited in IE 6/7/8/9. + * 2. Corrects text not wrapping in Firefox 3. + * 3. Corrects alignment displayed oddly in IE 6/7. + */ + +legend { + border: 0; /* 1 */ + padding: 0; + white-space: normal; /* 2 */ + *margin-left: -7px; /* 3 */ +} + +/* + * 1. Corrects font size not being inherited in all browsers. + * 2. Addresses margins set differently in IE 6/7, Firefox 3+, Safari 5, + * and Chrome. + * 3. Improves appearance and consistency in all browsers. + */ + +button, +input, +select, +textarea { + font-size: 100%; /* 1 */ + margin: 0; /* 2 */ + vertical-align: baseline; /* 3 */ + *vertical-align: middle; /* 3 */ +} + +/* + * Addresses Firefox 3+ setting `line-height` on `input` using `!important` in + * the UA stylesheet. + */ + +button, +input { + line-height: normal; +} + +/* + * 1. Avoid the WebKit bug in Android 4.0.* where (2) destroys native `audio` + * and `video` controls. + * 2. Corrects inability to style clickable `input` types in iOS. + * 3. Improves usability and consistency of cursor style between image-type + * `input` and others. + * 4. Removes inner spacing in IE 7 without affecting normal text inputs. + * Known issue: inner spacing remains in IE 6. + */ + +button, +html input[type="button"], /* 1 */ +input[type="reset"], +input[type="submit"] { + -webkit-appearance: button; /* 2 */ + cursor: pointer; /* 3 */ + *overflow: visible; /* 4 */ +} + +/* + * Re-set default cursor for disabled elements. + */ + +button[disabled], +input[disabled] { + cursor: default; +} + +/* + * 1. Addresses box sizing set to content-box in IE 8/9. + * 2. Removes excess padding in IE 8/9. + * 3. Removes excess padding in IE 7. + * Known issue: excess padding remains in IE 6. + */ + +input[type="checkbox"], +input[type="radio"] { + box-sizing: border-box; /* 1 */ + padding: 0; /* 2 */ + *height: 13px; /* 3 */ + *width: 13px; /* 3 */ +} + +/* + * 1. Addresses `appearance` set to `searchfield` in Safari 5 and Chrome. + * 2. Addresses `box-sizing` set to `border-box` in Safari 5 and Chrome + * (include `-moz` to future-proof). + */ +/* +input[type="search"] { + -webkit-appearance: textfield; + -moz-box-sizing: content-box; + -webkit-box-sizing: content-box; + box-sizing: content-box; +} +*/ + +/* + * Removes inner padding and search cancel button in Safari 5 and Chrome + * on OS X. + */ + +/* input[type="search"]::-webkit-search-cancel-button, +input[type="search"]::-webkit-search-decoration { + -webkit-appearance: none; +} */ + +/* + * Removes inner padding and border in Firefox 3+. + */ + +button::-moz-focus-inner, +input::-moz-focus-inner { + border: 0; + padding: 0; +} + +/* + * 1. Removes default vertical scrollbar in IE 6/7/8/9. + * 2. Improves readability and alignment in all browsers. + */ + +textarea { + overflow: auto; /* 1 */ + vertical-align: top; /* 2 */ +} + +/* ========================================================================== + Tables + ========================================================================== */ + +/* + * Remove most spacing between table cells. + */ + +table { + border-collapse: collapse; + border-spacing: 0; +} diff --git a/vendor/epubjs/css/popup.css b/vendor/epubjs/css/popup.css new file mode 100644 index 0000000..65c2f9b --- /dev/null +++ b/vendor/epubjs/css/popup.css @@ -0,0 +1,109 @@ +/* http://davidwalsh.name/css-tooltips */ +/* base CSS element */ +.popup { + background: #eee; + border: 1px solid #ccc; + padding: 10px; + border-radius: 8px; + box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2); + position: fixed; + max-width: 300px; + font-size: 12px; + + display: none; + margin-left: 2px; + + margin-top: 30px; +} + +.popup.above { + margin-top: -10px; +} + +.popup.left { + margin-left: -20px; +} + +.popup.right { + margin-left: 40px; +} + +.pop_content { + max-height: 225px; + overflow-y: auto; +} + +.pop_content > p { + margin-top: 0; +} + +/* below */ +.popup:before { + position: absolute; + display: inline-block; + border-bottom: 10px solid #eee; + border-right: 10px solid transparent; + border-left: 10px solid transparent; + border-bottom-color: rgba(0, 0, 0, 0.2); + left: 50%; + top: -10px; + margin-left: -6px; + content: ''; +} + +.popup:after { + position: absolute; + display: inline-block; + border-bottom: 9px solid #eee; + border-right: 9px solid transparent; + border-left: 9px solid transparent; + left: 50%; + top: -9px; + margin-left: -5px; + content: ''; +} + +/* above */ +.popup.above:before { + border-bottom: none; + border-top: 10px solid #eee; + border-top-color: rgba(0, 0, 0, 0.2); + top: 100%; +} + +.popup.above:after { + border-bottom: none; + border-top: 9px solid #eee; + top: 100%; +} + +.popup.left:before, +.popup.left:after +{ + left: 20px; +} + +.popup.right:before, +.popup.right:after +{ + left: auto; + right: 20px; +} + + +.popup.show, .popup.on { + display: block; +} + +.note-marker, +.EPUBJS-CFI-MARKER, +.EPUBJS-CFI-SPLIT { + vertical-align: super; + font-size: 0.75em; + line-height: 1em; + padding: 0.1em; + background-color: #fffa96; + border-radius: 5px; + cursor: pointer; +} + diff --git a/vendor/epubjs/css/sidebar.css b/vendor/epubjs/css/sidebar.css new file mode 100644 index 0000000..2fad6c0 --- /dev/null +++ b/vendor/epubjs/css/sidebar.css @@ -0,0 +1,494 @@ +/* sidebar */ + +.sidebar.open { + box-shadow: 3px 0px 3px 0px rgba(0, 0, 0, 0.4); + display: block; +} + +.sidebar { + background: #6b6b6b; + position: fixed; + top: 0; + min-width: 25em; + height: 100%; + overflow: hidden; + display: none; + z-index: 100; +} + +.sidebar.wide { + width: 20%; +} + +.toolbar, +.panels { + position: absolute; + width: 100%; + height: 2em; + background: #4e4e4e; + /* above titlebar controls */ + z-index: 3; +} + +.toolbar { + text-align: center; +} + +.toolbar .metainfo { + font-size: 1.2em; + top: 0.5em; +} + +.toolbar div { + display: inline-block; + position: relative; +} + +.toolbar .separator { + /* border: solid 1px; */ + height: 1em; + opacity: 0.5; +} + +.toolbar button, .sidebar button { + color: white; + border: none; + background-color: transparent; + padding: 0; +} + +.sidebar div > button { + /* font-size: 1.5em; */ + /* font-size: 1em; */ + padding: 0.4em; + margin: 0; +} + +.mobile .sidebar div > button { + padding: 0.5em; + margin: 0; +} + +.sidebar div > button:hover { + color: #8CC746; +} + +.panels .open { + background-color: #6B6B6B; +} + +.view.open { + display: block !important; +} + +.view { + overflow-x: hidden; + display: none !important; + width: 100%; + position: absolute; + top: 2em; + bottom: 0; +} + +.list_item a { + color: #AAA; + text-decoration: none; +} + +.list_item a.chapter { + font-size: 1em; +} + +.list_item a.section { + font-size: .8em; +} + +.list_item.currentChapter > a, +.list_item a:hover { + color: #f1f1f1 +} + +.list_item a:hover { + color: #E2E2E2; +} + +.list_item ul { + display: none; +} + +.list_item.currentChapter > ul, +.list_item.openChapter > ul { + display: block; +} + +legend { + margin-left: 1em; + padding: 0.5em; + box-shadow: 0 1px 10px rgba(0, 0, 0, 0.4); + } + +.settings-container { + text-align: left; + margin: 1em; + background: #F8F8F8; + color: #111; + border-radius: 4px; + box-shadow: 0 1px 10px rgba(0, 0, 0, 0.4); +} + +.settings-container > legend { + position: relative; + top: 1em; + margin-bottom: 1em; + text-align: center; + font-weight: 600; + box-shadow: none; +} + +.settings-container label { + margin-right: 1em; +} + +.center-box { + text-align: center; + margin: 1em; +} + +.font_example { + margin: 1em; + text-align: center; + box-shadow: inset 0 1px 10px rgba(0, 0, 0, 0.4); +} + +.font_example div { + padding: 1em; +} + +.view .control-group input[type=range] { + width: 90%; + float: right; + margin: 0; +} + +.view .control-group { + padding: 1em; +} + +.view .sliders { + font-size: 1.5em; +} + +.view .control-group span { + float: left; + margin: 0 2px; + clear: both; +} + +.view .control-group input[type=reset] { + float: right; +} +.metadata { + padding: 1em; + margin: 1em; +} + +.metadata table { + font-size: 1.2em; + color: #F8F8F8; +} + +.metadata td:nth-child(1) { + font-weight: bold; + padding-right: 1em; +} + +/* panels */ +.panels a { + visibility: hidden; + overflow: hidden; + display: inline-block; + color: #ccc; +} + +.panels a::before { + visibility: visible; +} + +.panels a:hover { + color: #AAA; +} + +.panels a:active { + color: #AAA; + margin: 1px 0 -1px 6px; +} + +.panels a.active, +.panels a.active:hover { + color: #AAA; +} + +/* END panels */ + +/* TOC (and search, and bookmarks) */ +.toc_toggle { + display: inline-block; + width: 14px; + cursor: pointer; + -webkit-user-select: none; + -moz-user-select: none; + user-select: none; +} + +.toc_toggle:before { + content: '▸'; + color: #fff; + margin-right: -4px; +} + +.currentChapter > .toc_toggle:before, +.openChapter > .toc_toggle:before { + content: '▾'; +} + +#toc-populate.open { + display: inline-block !important; + background-color: #4e4e4e; +} + +.toc-view li, +.bookmarks-view li, +.search-view li { + margin: 1em; + font-family: Georgia, "Times New Roman", Times, serif; + list-style: none; +} + +.toc-view li { + text-transform: capitalize; +} + +.toc-vew.hidden { + display: none; +} + +.bookmark_link_text { + float: right; + font-size: 75%; + margin: 1em; + color: #AAA; +} + +/* END TOC */ + + +/* search */ + +.search-view, +.notes-view { + overflow: hidden; +} + +.search-results { + overflow-y: scroll; + height: 95%; + height: calc(100vh - 5em); +} + +.search-input { + padding-top: 1em; + padding-bottom: 1em; + box-shadow: 0 1px 10px rgba(0, 0, 0, 0.4); +} + +.searchbox { + width: 80%; + float: left; + margin-left: 1em; +} + +.searchbox + span { + position: relative; + left: -1em; + visibility: hidden; + font-weight: bold; + font-family: sans-serif; + cursor: pointer; +} + +.searchbox + span:hover { + color: red; +} + +#clear_search { + padding: 0; + padding-right: 0.5em; +} + +/* END search */ + +/* notes */ + +.notes-input { + padding-top: 1em; + padding-bottom: 2em; + box-shadow: 0 1px 10px rgba(0, 0, 0, 0.4); +} + +.notes { + overflow-y: scroll; + height: 95%; + height: calc(100vh - 11em); +} + +.notes li, +.bookmarks li { + margin: 1em 1em 1em 0.5em; + padding: 0.25em 0 0 0.5em; + font-family: Georgia, "Times New Roman", Times, serif; + /* border-top: 1px #eee dotted; */ + color: #ccc; + padding-bottom: 0.5em; + border-left: 0.5em solid transparent; +} + +.notes li:hover, +.bookmarks li:hover { + border-left: 0.5em solid #eee; +} + +.notes li:hover span, +.notes li:hover a, +.bookmarks li:hover span, +.bookmarks li:hover a { + color: #fff; +} + +.item-date { + text-align: right; + font-size: 0.8em; + padding-top: 0.5em; + color: #bbb; +} + +.item-delete, +.item-edit, +.item-save, +.item-cancel, +.note-link { + color: #999; + display: inline-block; + text-decoration: none; + margin-right: 0.5em; + margin-top: 0.5em; + cursor: pointer; +} + +.item-save, +.item-cancel { + background-color: #ccc; + padding: 0.2em 0.4em; + border: 1px solid #ccc; + border-radius: 0.2em; +} + +.item-save:hover, +.item-cancel:hover { + background-color: #eee; + border: 1px solid white; +} + +.item-save { + color: green !important; +} + +.item-cancel { + color: red !important; +} + +.note-link { + float: right; + margin-right: 0; +} + +.note-delete, +.note-edit { + float: left; +} + +div.editable { + background-color: #EEE; + color: #111; + /* border: 1px dotted white; */ + border-radius: 0.2em; + padding: 0.25em; + box-shadow: inset 0 1px 10px rgba(0, 0, 0, 0.4); +} + +.notes li a:hover, +.bookmarks li a:hover { + text-decoration: underline; +} + +.notes li img { +} + +.note-text { + text-align: left; + display: block; + width: calc(100% - 2em); + height: 6em; + margin-left: 1em; + margin-right: 1em; + margin-bottom: 1em; + border-radius: 4px; +} + +.note-text[disabled], #note-text[disabled="disabled"]{ + opacity: .5; +} + +.note-anchor { + font-size: 1.5em; + padding: 0 !important; + margin-right: 0.5em !important; +} + +.note-marker { + vertical-align: super; + font-size: 0.75em; + line-height: 1em; + padding: 0.1em; + background-color: #fffa96; + border-radius: 5px; + cursor: pointer; +} + +/* END notes */ + +/* margins */ + +.margin-icon { + float: none !important; + font-size: 3em; + vertical-align: middle; +} + +/* media-specific rules */ + +@media only screen and (max-width: 25em) { + + .sidebar { + min-width: 10em; + width: 80%; + } + + #main.single { + width: 100% !important; + } +} + + +/* END sidebar */ + + diff --git a/vendor/epubjs/epub.main.css b/vendor/epubjs/epub.main.css new file mode 100644 index 0000000..3ce2b1a --- /dev/null +++ b/vendor/epubjs/epub.main.css @@ -0,0 +1,778 @@ +@font-face { + font-family: 'fontello'; + src: url('font/fontello.eot?60518104'); + src: url('font/fontello.eot?60518104#iefix') format('embedded-opentype'), + url('font/fontello.woff?60518104') format('woff'), + url('font/fontello.ttf?60518104') format('truetype'), + url('font/fontello.svg?60518104#fontello') format('svg'); + font-weight: normal; + font-style: normal; +} + +body { + background: #4e4e4e; + overflow: hidden; +} + +#main { + /* height: 500px; */ + position: absolute; + width: 100%; + height: 100%; + right: 0; + /* left: 40px; */ +/* -webkit-transform: translate(40px, 0); + -moz-transform: translate(40px, 0); */ + + /* border-radius: 5px 0px 0px 5px; */ + border-radius: 5px; + background: #fff; + overflow: hidden; + -webkit-transition: -webkit-transform .4s, width .2s; + -moz-transition: -webkit-transform .4s, width .2s; + + -moz-box-shadow: inset 0 0 50px rgba(0,0,0,.1); + -webkit-box-shadow: inset 0 0 50px rgba(0,0,0,.1); + box-shadow: inset 0 0 50px rgba(0,0,0,.1); +} + + +#titlebar { + height: 8%; + min-height: 20px; + padding: 10px; + /* margin: 0 50px 0 50px; */ + position: relative; + color: #4f4f4f; + font-weight: 100; + font-family: Georgia, "Times New Roman", Times, serif; + opacity: .5; + text-align: center; + -webkit-transition: opacity .5s; + -moz-transition: opacity .5s; + z-index: 10; +} + +#titlebar:hover { + opacity: 1; +} + +#titlebar a { + width: 18px; + height: 19px; + line-height: 20px; + overflow: hidden; + display: inline-block; + opacity: .5; + padding: 4px; + border-radius: 4px; +} + +#titlebar a::before { + visibility: visible; +} + +#titlebar a:hover { + opacity: .8; + border: 1px rgba(0,0,0,.2) solid; + padding: 3px; +} + +#titlebar a:active { + opacity: 1; + color: rgba(0,0,0,.6); + /* margin: 1px -1px -1px 1px; */ + -moz-box-shadow: inset 0 0 6px rgba(155,155,155,.8); + -webkit-box-shadow: inset 0 0 6px rgba(155,155,155,.8); + box-shadow: inset 0 0 6px rgba(155,155,155,.8); +} + +#book-title { + font-weight: 600; +} + +#title-seperator { + display: none; +} + +#viewer { + width: 80%; + height: 80%; + /* margin-left: 10%; */ + margin: 0 auto; + max-width: 1250px; + z-index: 2; + position: relative; + overflow: hidden; +} + +#viewer iframe { + border: none; +} + +#prev, #next { + position: absolute; + top: 10%; + height: 85%; + margin: 0; +} + +.touch_nav { + width: 35%; +} + +.arrow div { + display: table-cell; + vertical-align: middle; +} + + +#prev { + left: 0; + padding-left: 40px; +} + +#next { + right: 0; + padding-right: 40px; + text-align: right; +} + +.arrow { + /* position: relative; + top: 50%; + margin-top: -32px; */ + font-size: 64px; + color: #E2E2E2; + font-family: arial, sans-serif; + font-weight: bold; + cursor: pointer; + display: table; + z-index: 3; +} + +.arrow:hover { + color: #777; +} + +.arrow:active, +.arrow.active { + color: #000; +} + +#sidebar { + background: #6b6b6b; + position: absolute; + /* left: -260px; */ + /* -webkit-transform: translate(-260px, 0); + -moz-transform: translate(-260px, 0); */ + top: 0; + min-width: 300px; + width: 25%; + height: 100%; + -webkit-transition: -webkit-transform .5s; + -moz-transition: -moz-transform .5s; + + overflow: hidden; +} + +#sidebar.open { + /* left: 0; */ + /* -webkit-transform: translate(0, 0); + -moz-transform: translate(0, 0); */ +} + +#main.closed { + /* left: 300px; */ + -webkit-transform: translate(300px, 0); + -moz-transform: translate(300px, 0); +} + +#main.single { + width: 75%; +} + +#main.single #viewer { + /* width: 60%; + margin-left: 20%; */ +} + +#panels { + background: #4e4e4e; + position: absolute; + left: 0; + top: 0; + width: 100%; + padding: 13px 0; + height: 14px; + -moz-box-shadow: 0px 1px 3px rgba(0,0,0,.6); + -webkit-box-shadow: 0px 1px 3px rgba(0,0,0,.6); + box-shadow: 0px 1px 3px rgba(0,0,0,.6); +} + +#opener { + /* padding: 10px 10px; */ + float: left; +} + +/* #opener #slider { + width: 25px; +} */ + +#metainfo { + display: inline-block; + text-align: center; + max-width: 80%; +} + +#title-controls { + float: right; +} + +#panels a { + visibility: hidden; + width: 18px; + height: 20px; + overflow: hidden; + display: inline-block; + color: #ccc; + margin-left: 6px; +} + +#panels a::before { + visibility: visible; +} + +#panels a:hover { + color: #AAA; +} + +#panels a:active { + color: #AAA; + margin: 1px 0 -1px 6px; +} + +#panels a.active, +#panels a.active:hover { + color: #AAA; +} + +.searchbox { + position: inline-block; + width: 50%; + float: left; + margin-left: 1em; +} + +.searchbox + span { + position: relative; + left: -1em; + visibility: hidden; + font-weight: bold; +} + +input::-webkit-input-placeholder { + color: #454545; +} +input:-moz-placeholder { + color: #454545; +} + +#divider { + position: absolute; + width: 1px; + border-right: 1px #000 solid; + height: 80%; + z-index: 1; + left: 50%; + margin-left: -1px; + top: 10%; + opacity: .15; + box-shadow: -2px 0 15px rgba(0, 0, 0, 1); + display: none; +} + +#divider.show { + display: block; +} + +#loader { + position: absolute; + z-index: 10; + left: 50%; + top: 50%; + margin: -33px 0 0 -33px; +} + +#tocView, +#bookmarksView { + overflow-x: hidden; + overflow-y: hidden; + min-width: 300px; + width: 25%; + height: 100%; + visibility: hidden; + -webkit-transition: visibility 0 ease .5s; + -moz-transition: visibility 0 ease .5s; +} + + + +#sidebar.open #tocView, +#sidebar.open #bookmarksView { + overflow-y: auto; + visibility: visible; + -webkit-transition: visibility 0 ease 0; + -moz-transition: visibility 0 ease 0; +} + +#sidebar.open #tocView { + display: block; +} + +#tocView > ul, +#bookmarksView > ul { + margin-top: 15px; + margin-bottom: 50px; + padding-left: 20px; + display: block; +} + +#tocView li, +#bookmarksView li { + margin-bottom:10px; + width: 225px; + font-family: Georgia, "Times New Roman", Times, serif; + list-style: none; + text-transform: capitalize; +} + +#tocView li:active, +#tocView li.currentChapter +{ + list-style: none; +} + +.list_item a { + color: #AAA; + text-decoration: none; +} + +.list_item a.chapter { + font-size: 1em; +} + +.list_item a.section { + font-size: .8em; +} + +.list_item.currentChapter > a, +.list_item a:hover { + color: #f1f1f1 +} + +/* #tocView li.openChapter > a, */ +.list_item a:hover { + color: #E2E2E2; +} + +.list_item ul { + padding-left:10px; + margin-top: 8px; + display: none; +} + +.list_item.currentChapter > ul, +.list_item.openChapter > ul { + display: block; +} + +#tocView.hidden { + display: none; +} + +.toc_toggle { + display: inline-block; + width: 14px; + cursor: pointer; + -webkit-user-select: none; + -moz-user-select: none; + user-select: none; +} + +.toc_toggle:before { + content: '▸'; + color: #fff; + margin-right: -4px; +} + +.currentChapter > .toc_toggle:before, +.openChapter > .toc_toggle:before { + content: '▾'; +} + +.view { + width: 300px; + height: 100%; + display: none; + padding-top: 50px; + overflow-y: auto; +} + +#searchResults { + margin-bottom: 50px; + padding-left: 20px; + display: block; +} + +#searchResults li { + margin-bottom:10px; + width: 225px; + font-family: Georgia, "Times New Roman", Times, serif; + list-style: none; +} + +#searchResults a { + color: #AAA; + text-decoration: none; +} + +#searchResults p { + text-decoration: none; + font-size: 12px; + line-height: 16px; +} + +#searchResults p .match { + background: #ccc; + color: #000; +} + +#searchResults li > p { + color: #AAA; +} + +#searchResults li a:hover { + color: #E2E2E2; +} + +#searchView.shown { + display: block; + overflow-y: scroll; +} + +#notes { + padding: 0 0 0 34px; +} + +#notes li { + color: #eee; + font-size: 12px; + width: 240px; + border-top: 1px #fff solid; + padding-top: 6px; + margin-bottom: 6px; +} + +#notes li a { + color: #fff; + display: inline-block; + margin-left: 6px; +} + +#notes li a:hover { + text-decoration: underline; +} + +#notes li img { + max-width: 240px; +} + +#note-text { + display: block; + width: 260px; + height: 80px; + margin: 0 auto; + padding: 5px; + border-radius: 5px; +} + +#note-text[disabled], #note-text[disabled="disabled"]{ + opacity: .5; +} + +#note-anchor { + margin-left: 218px; + margin-top: 5px; +} + +#settingsPanel { + display:none; +} + +#settingsPanel h3 { + color:#f1f1f1; + font-family:Georgia, "Times New Roman", Times, serif; + margin-bottom:10px; +} + +#settingsPanel ul { + margin-top:60px; + list-style-type:none; +} + +#settingsPanel li { + font-size:1em; + color:#f1f1f1; +} + +#settingsPanel .xsmall { font-size:x-small; } +#settingsPanel .small { font-size:small; } +#settingsPanel .medium { font-size:medium; } +#settingsPanel .large { font-size:large; } +#settingsPanel .xlarge { font-size:x-large; } + +.highlight { background-color: yellow } + +.modal { + position: fixed; + top: 50%; + left: 50%; + width: 50%; + width: 630px; + + height: auto; + z-index: 2000; + visibility: hidden; + margin-left: -320px; + margin-top: -160px; + +} + +.overlay { + position: fixed; + width: 100%; + height: 100%; + visibility: hidden; + top: 0; + left: 0; + z-index: 1000; + opacity: 0; + background: rgba(255,255,255,0.8); + -webkit-transition: all 0.3s; + -moz-transition: all 0.3s; + transition: all 0.3s; +} + +.md-show { + visibility: visible; +} + +.md-show ~ .overlay { + opacity: 1; + visibility: visible; +} + +/* Content styles */ +.md-content { + color: #fff; + background: #6b6b6b; + position: relative; + border-radius: 3px; + margin: 0 auto; + height: 320px; +} + +.md-content h3 { + margin: 0; + padding: 6px; + text-align: center; + font-size: 22px; + font-weight: 300; + opacity: 0.8; + background: rgba(0,0,0,0.1); + border-radius: 3px 3px 0 0; +} + +.md-content > div { + padding: 15px 40px 30px; + margin: 0; + font-weight: 300; + font-size: 14px; +} + +.md-content > div p { + margin: 0; + padding: 10px 0; +} + +.md-content > div ul { + margin: 0; + padding: 0 0 30px 20px; +} + +.md-content > div ul li { + padding: 5px 0; +} + +.md-content button { + display: block; + margin: 0 auto; + font-size: 0.8em; +} + +/* Effect 1: Fade in and scale up */ +.md-effect-1 .md-content { + -webkit-transform: scale(0.7); + -moz-transform: scale(0.7); + -ms-transform: scale(0.7); + transform: scale(0.7); + opacity: 0; + -webkit-transition: all 0.3s; + -moz-transition: all 0.3s; + transition: all 0.3s; +} + +.md-show.md-effect-1 .md-content { + -webkit-transform: scale(1); + -moz-transform: scale(1); + -ms-transform: scale(1); + transform: scale(1); + opacity: 1; +} + +.md-content > .closer { + font-size: 18px; + position: absolute; + right: 0; + top: 0; + font-size: 24px; + padding: 4px; +} + +@media only screen and (max-width: 1040px) { + #viewer{ + width: 50%; + margin-left: 25%; + } + + #divider, + #divider.show { + display: none; + } +} + +@media only screen and (max-width: 900px) { + #viewer{ + width: 60%; + margin-left: 20%; + } + + #prev { + padding-left: 20px; + } + + #next { + padding-right: 20px; + } +} + +@media only screen and (max-width: 550px) { + #viewer{ + width: 80%; + margin-left: 10%; + } + + #prev { + padding-left: 0; + } + + #next { + padding-right: 0; + } + + .arrow div { + text-indent: 100%; + white-space: nowrap; + overflow: hidden; + } + + #main { + -webkit-transform: translate(0, 0); + -moz-transform: translate(0, 0); + -webkit-transition: -webkit-transform .3s; + -moz-transition: -moz-transform .3s; + } + + #main.closed { + -webkit-transform: translate(260px, 0); + -moz-transform: translate(260px, 0); + } + + #titlebar { + /* font-size: 16px; */ + /* margin: 0 50px 0 50px; */ + } + + #metainfo { + font-size: 10px; + } + + #tocView { + width: 260px; + } + + #tocView li { + font-size: 12px; + } + + #tocView > ul{ + padding-left: 10px; + webkit-padding-start:; + } +} + +[class^="icon-"]:before, [class*=" icon-"]:before { + font-family: "fontello"; + font-style: normal; + font-weight: normal; + speak: none; + + display: inline-block; + text-decoration: inherit; + width: 1em; + margin-right: .2em; + text-align: center; + /* opacity: .8; */ + + /* For safety - reset parent styles, that can break glyph codes*/ + font-variant: normal; + text-transform: none; + + /* you can be more comfortable with increased icons size */ + font-size: 112%; +} + + +.icon-search:before { content: '\e807'; } /* '' */ +.icon-resize-full-1:before { content: '\e804'; } /* '' */ +.icon-cancel-circled2:before { content: '\e80f'; } /* '' */ +.icon-link:before { content: '\e80d'; } /* '' */ +.icon-bookmark:before { content: '\e805'; } /* '' */ +.icon-bookmark-empty:before { content: '\e806'; } /* '' */ +.icon-download-cloud:before { content: '\e811'; } /* '' */ +.icon-edit:before { content: '\e814'; } /* '' */ +.icon-menu:before { content: '\e802'; } /* '' */ +.icon-cog:before { content: '\e813'; } /* '' */ +.icon-resize-full:before { content: '\e812'; } /* '' */ +.icon-cancel-circled:before { content: '\e80e'; } /* '' */ +.icon-up-dir:before { content: '\e80c'; } /* '' */ +.icon-right-dir:before { content: '\e80b'; } /* '' */ +.icon-angle-right:before { content: '\e809'; } /* '' */ +.icon-angle-down:before { content: '\e80a'; } /* '' */ +.icon-right:before { content: '\e815'; } /* '' */ +.icon-list-1:before { content: '\e803'; } /* '' */ +.icon-list-numbered:before { content: '\e801'; } /* '' */ +.icon-columns:before { content: '\e810'; } /* '' */ +.icon-list:before { content: '\e800'; } /* '' */ +.icon-resize-small:before { content: '\e808'; } /* '' */ diff --git a/vendor/epubjs/epub.min.js b/vendor/epubjs/epub.min.js new file mode 100644 index 0000000..b482450 --- /dev/null +++ b/vendor/epubjs/epub.min.js @@ -0,0 +1,11 @@ +/*! + * @overview RSVP - a tiny implementation of Promises/A+. + * @copyright Copyright (c) 2016 Yehuda Katz, Tom Dale, Stefan Penner and contributors + * @license Licensed under MIT license + * See https://raw.githubusercontent.com/tildeio/rsvp.js/master/LICENSE + * @version 3.3.3 + */ +"use strict";!function(a,b){"object"==typeof exports&&"undefined"!=typeof module?b(exports):"function"==typeof define&&define.amd?define(["exports"],b):b(a.RSVP=a.RSVP||{})}(this,function(a){function b(a,b){for(var c=0,d=a.length;c1)throw new Error("Second argument not supported");if("object"!=typeof a)throw new TypeError("Argument must be an object");return h.prototype=a,new h},Aa=[],Ba=void 0,Ca=1,Da=2,Ea=new y,Fa=new y;E.prototype._validateInput=function(a){return xa(a)},E.prototype._validationError=function(){return new Error("Array Methods must be provided an Array")},E.prototype._init=function(){this._result=new Array(this.length)},E.prototype._enumerate=function(){for(var a=this.length,b=this.promise,c=this._input,d=0;b._state===Ba&&d=i)l.resolve();else{if(c&&c.cancelled)return e.remove(),this.element.removeChild(f),void l.reject(new Error("User cancelled"));h=g,b=new EPUBJS.Chapter(this.spine[h],this.store),e.displayChapter(b,this.globalLayoutProperties).then(function(a){e.pageMap.forEach(function(a){j+=1,d.push({cfi:a.start,page:j})}),e.pageMap.length%2>0&&e.spreads&&(j+=1,d.push({cfi:e.pageMap[e.pageMap.length-1].end,page:j})),setTimeout(function(){k(l)},1)})}return l.promise}.bind(this);k().then(function(){e.remove(),this.element.removeChild(f),g.resolve(d)}.bind(this),function(a){g.reject(a)});return g.promise},EPUBJS.Book.prototype.generatePagination=function(a,b,c){var d=this,e=new RSVP.defer;return this.ready.spine.promise.then(function(){d.generatePageList(a,b,c).then(function(a){d.pageList=d.contents.pageList=a,d.pagination.process(a),d.ready.pageList.resolve(d.pageList),e.resolve(d.pageList)},function(a){e.reject(a)})}),e.promise},EPUBJS.Book.prototype.loadPagination=function(a){var b;return b="string"==typeof a?JSON.parse(a):a,b&&b.length&&(this.pageList=b,this.pagination.process(this.pageList),this.ready.pageList.resolve(this.pageList)),this.pageList},EPUBJS.Book.prototype.getPageList=function(){return this.ready.pageList.promise},EPUBJS.Book.prototype.getMetadata=function(){return this.ready.metadata.promise},EPUBJS.Book.prototype.getToc=function(){return this.ready.toc.promise},EPUBJS.Book.prototype.networkListeners=function(){var a=this;window.addEventListener("offline",function(b){a.online=!1,a.settings.storage&&a.fromStorage(!0),a.trigger("book:offline")},!1),window.addEventListener("online",function(b){a.online=!0,a.settings.storage&&a.fromStorage(!1),a.trigger("book:online")},!1)},EPUBJS.Book.prototype.listenToRenderer=function(a){var b=this;a.Events.forEach(function(c){a.on(c,function(a){b.trigger(c,a)})}),a.on("renderer:visibleRangeChanged",function(a){var b,c,d,e=[];this.pageList.length>0&&(b=this.pagination.pageFromCfi(a.start),d=this.pagination.percentageFromPage(b),e.push(b),a.end&&(c=this.pagination.pageFromCfi(a.end),e.push(c)),this.trigger("book:pageChanged",{anchorPage:b,percentage:d,pageRange:e}))}.bind(this)),a.on("render:loaded",this.loadChange.bind(this))},EPUBJS.Book.prototype.loadChange=function(a){var b,c,d=EPUBJS.core.uri(a),e=EPUBJS.core.uri(this.currentChapter.absolute);d.path!=e.path?(console.warn("Miss Match",d.path,this.currentChapter.absolute),b=this.spineIndexByURL[d.filename],c=new EPUBJS.Chapter(this.spine[b],this.store),this.currentChapter=c,this.renderer.currentChapter=c,this.renderer.afterLoad(this.renderer.render.docEl),this.renderer.beforeDisplay(function(){this.renderer.afterDisplay()}.bind(this))):this._rendering||this.renderer.reformat()},EPUBJS.Book.prototype.unlistenToRenderer=function(a){a.Events.forEach(function(b){a.off(b)})},EPUBJS.Book.prototype.coverUrl=function(){var a=this.ready.cover.promise.then(function(a){return this.settings.fromStorage?this.store.getUrl(this.contents.cover):this.settings.contained?this.zip.getUrl(this.contents.cover):this.contents.cover}.bind(this));return a.then(function(a){this.cover=a}.bind(this)),a},EPUBJS.Book.prototype.loadXml=function(a){return this.settings.fromStorage?this.store.getXml(a,this.settings.encoding):this.settings.contained?this.zip.getXml(a,this.settings.encoding):EPUBJS.core.request(a,"xml",this.settings.withCredentials)},EPUBJS.Book.prototype.urlFrom=function(a){var b,c=EPUBJS.core.uri(a),d=c.protocol,e="/"==c.path[0],f=window.location,g=f.origin||f.protocol+"//"+f.host,h=document.getElementsByTagName("base");return h.length&&(b=h[0].href),c.protocol?c.origin+c.path:!d&&e?(b||g)+c.path:d||e?void 0:EPUBJS.core.resolveUrl(b||f.pathname,c.path)},EPUBJS.Book.prototype.unarchive=function(a){return this.zip=new EPUBJS.Unarchiver,this.store=this.zip,this.zip.open(a)},EPUBJS.Book.prototype.isContained=function(a){if(a instanceof ArrayBuffer)return!0;var b=EPUBJS.core.uri(a);return!(!b.extension||"epub"!=b.extension&&"zip"!=b.extension)},EPUBJS.Book.prototype.isSaved=function(a){var b;return!!localStorage&&(b=localStorage.getItem(a),!(!localStorage||null===b))},EPUBJS.Book.prototype.generateBookKey=function(a){return"epubjs:"+EPUBJS.VERSION+":"+window.location.host+":"+a},EPUBJS.Book.prototype.saveContents=function(){return!!localStorage&&void localStorage.setItem(this.settings.bookKey,JSON.stringify(this.contents))},EPUBJS.Book.prototype.removeSavedContents=function(){return!!localStorage&&void localStorage.removeItem(this.settings.bookKey)},EPUBJS.Book.prototype.renderTo=function(a){var b,c=this;if(EPUBJS.core.isElement(a))this.element=a;else{if("string"!=typeof a)return void console.error("Not an Element");this.element=EPUBJS.core.getEl(a)}return b=this.opened.then(function(){return c.renderer.initialize(c.element,c.settings.width,c.settings.height),c.metadata.direction&&c.renderer.setDirection(c.metadata.direction),c._rendered(),c.startDisplay()})},EPUBJS.Book.prototype.startDisplay=function(){var a;return a=this.settings.goto?this.goto(this.settings.goto):this.settings.previousLocationCfi?this.gotoCfi(this.settings.previousLocationCfi):this.displayChapter(this.spinePos,this.settings.displayLastPage)},EPUBJS.Book.prototype.restore=function(a){var b,c=this,d=["manifest","spine","metadata","cover","toc","spineNodeIndex","spineIndexByURL","globalLayoutProperties"],e=!1,f=this.generateBookKey(a),g=localStorage.getItem(f),h=d.length;if(this.settings.clearSaved&&(e=!0),!e&&"undefined"!=g&&null!==g)for(c.contents=JSON.parse(g),b=0;b=this.spine.length)&&(console.warn("Not A Valid Location"),f=0,b=!1,e=!1),g=new EPUBJS.Chapter(this.spine[f],this.store),this._rendering=!0,this._needsAssetReplacement()&&g.registerHook("beforeChapterRender",[EPUBJS.replace.head,EPUBJS.replace.resources,EPUBJS.replace.svg],!0),h.currentChapter=g,d=h.renderer.displayChapter(g,this.globalLayoutProperties),e?h.renderer.gotoCfi(e):b&&h.renderer.lastPage(),d.then(function(a){h.spinePos=f,i.resolve(h.renderer),h.settings.fromStorage===!1&&h.settings.contained===!1&&h.preloadNextChapter(),h._rendering=!1,h._displayQ.dequeue(),0===h._displayQ.length()&&h._gotoQ.dequeue()},function(a){console.error("Could not load Chapter: "+g.absolute,a),h.trigger("book:chapterLoadFailed",g.absolute),h._rendering=!1,i.reject(a)}),i.promise):(this._q.enqueue("displayChapter",arguments),i.reject({message:"Rendering",stack:(new Error).stack}),i.promise)},EPUBJS.Book.prototype.nextPage=function(a){var a=a||new RSVP.defer;if(!this.isRendered)return this._q.enqueue("nextPage",[a]),a.promise;var b=this.renderer.nextPage();return b?(a.resolve(!0),a.promise):this.nextChapter(a)},EPUBJS.Book.prototype.prevPage=function(a){var a=a||new RSVP.defer;if(!this.isRendered)return this._q.enqueue("prevPage",[a]),a.promise;var b=this.renderer.prevPage();return b?(a.resolve(!0),a.promise):this.prevChapter(a)},EPUBJS.Book.prototype.nextChapter=function(a){var a=a||new RSVP.defer;if(this.spinePos0){for(var b=this.spinePos-1;this.spine[b]&&this.spine[b].linear&&"no"==this.spine[b].linear;)b--;if(b>=0)return this.displayChapter(b,!0,a)}return this.trigger("book:atStart"),a.resolve(!0),a.promise},EPUBJS.Book.prototype.getCurrentLocationCfi=function(){return!!this.isRendered&&this.renderer.currentLocationCfi},EPUBJS.Book.prototype.goto=function(a){return 0===a.indexOf("epubcfi(")?this.gotoCfi(a):a.indexOf("%")===a.length-1?this.gotoPercentage(parseInt(a.substring(0,a.length-1))/100):"number"==typeof a||isNaN(a)===!1?this.gotoPage(a):this.gotoHref(a)},EPUBJS.Book.prototype.gotoCfi=function(a,b){var c,d,e,f,g,h=b||new RSVP.defer;return this.isRendered?this._moving||this._rendering?(console.warn("Renderer is moving"),this._gotoQ.enqueue("gotoCfi",[a,h]),!1):(c=new EPUBJS.EpubCFI(a),d=c.spinePos,d!=-1&&(e=this.spine[d],f=h.promise,this._moving=!0,this.currentChapter&&this.spinePos===d?(this.renderer.gotoCfi(c),this._moving=!1,h.resolve(this.renderer.currentLocationCfi)):(e&&d!=-1||(d=0,e=this.spine[d]),g=this.displayChapter(a),g.then(function(a){this._moving=!1,h.resolve(a.currentLocationCfi)}.bind(this),function(){this._moving=!1}.bind(this))),f.then(function(){this._gotoQ.dequeue()}.bind(this)),f)):(console.warn("Not yet Rendered"),this.settings.previousLocationCfi=a,!1)},EPUBJS.Book.prototype.gotoHref=function(a,b){var c,d,e,f,g,h=b||new RSVP.defer;return this.isRendered?this._moving||this._rendering?(this._gotoQ.enqueue("gotoHref",[a,h]),!1):(c=a.split("#"),d=c[0],e=c[1]||!1,f=d.search("://")==-1?d.replace(EPUBJS.core.uri(this.settings.contentsPath).path,""):d.replace(this.settings.contentsPath,""),g=this.spineIndexByURL[f],d||(g=this.currentChapter?this.currentChapter.spinePos:0),"number"==typeof g&&(this.currentChapter&&g==this.currentChapter.spinePos?(e?this.renderer.section(e):this.renderer.firstPage(),h.resolve(this.renderer.currentLocationCfi),h.promise.then(function(){this._gotoQ.dequeue()}.bind(this)),h.promise):this.displayChapter(g).then(function(){e&&this.renderer.section(e),h.resolve(this.renderer.currentLocationCfi)}.bind(this)))):(this.settings.goto=a,!1)},EPUBJS.Book.prototype.gotoPage=function(a){var b=this.pagination.cfiFromPage(a);return this.gotoCfi(b)},EPUBJS.Book.prototype.gotoPercentage=function(a){var b=this.pagination.pageFromPercentage(a);return this.gotoPage(b)},EPUBJS.Book.prototype.preloadNextChapter=function(){var a,b=this.spinePos+1;return!(b>=this.spine.length)&&(a=new EPUBJS.Chapter(this.spine[b]),void(a&&EPUBJS.core.request(a.absolute)))},EPUBJS.Book.prototype.storeOffline=function(){var a=this,b=EPUBJS.core.values(this.manifest);return this.store.put(b).then(function(){a.settings.stored=!0,a.trigger("book:stored")})},EPUBJS.Book.prototype.availableOffline=function(){return this.settings.stored>0},EPUBJS.Book.prototype.toStorage=function(){var a=this.settings.bookKey;this.store.isStored(a).then(function(b){return b===!0?(this.settings.stored=!0,!0):this.storeOffline().then(function(){this.store.token(a,!0)}.bind(this))}.bind(this))},EPUBJS.Book.prototype.fromStorage=function(a){[EPUBJS.replace.head,EPUBJS.replace.resources,EPUBJS.replace.svg];this.contained||this.settings.contained||(this.online&&this.opened.then(this.toStorage.bind(this)),this.store&&this.settings.fromStorage&&a===!1?(this.settings.fromStorage=!1,this.store.off("offline"),this.store=!1):this.settings.fromStorage||(this.store=new EPUBJS.Storage(this.settings.credentials),this.store.on("offline",function(a){a?(this.offline=!0,this.settings.fromStorage=!0,this.trigger("book:offline")):(this.offline=!1,this.settings.fromStorage=!1,this.trigger("book:online"))}.bind(this))))},EPUBJS.Book.prototype.setStyle=function(a,b,c){var d=["color","background","background-color"];return this.isRendered?(this.settings.styles[a]=b,this.renderer.setStyle(a,b,c),void(d.indexOf(a)===-1&&this.renderer.reformat())):this._q.enqueue("setStyle",arguments)},EPUBJS.Book.prototype.removeStyle=function(a){return this.isRendered?(this.renderer.removeStyle(a),this.renderer.reformat(),void delete this.settings.styles[a]):this._q.enqueue("removeStyle",arguments)},EPUBJS.Book.prototype.resetClasses=function(a){return this.isRendered?(a.constructor===String&&(a=[a]),this.settings.classes=a,this.renderer.setClasses(this.settings.classes),void this.renderer.reformat()):this._q.enqueue("setClasses",arguments)}, +EPUBJS.Book.prototype.addClass=function(a){return this.isRendered?(this.settings.classes.indexOf(a)==-1&&this.settings.classes.push(a),this.renderer.setClasses(this.settings.classes),void this.renderer.reformat()):this._q.enqueue("addClass",arguments)},EPUBJS.Book.prototype.removeClass=function(a){if(!this.isRendered)return this._q.enqueue("removeClass",arguments);var b=this.settings.classes.indexOf(a);b!=-1&&(delete this.settings.classes[b],this.renderer.setClasses(this.settings.classes),this.renderer.reformat())},EPUBJS.Book.prototype.addHeadTag=function(a,b){return this.isRendered?void(this.settings.headTags[a]=b):this._q.enqueue("addHeadTag",arguments)},EPUBJS.Book.prototype.useSpreads=function(a){console.warn("useSpreads is deprecated, use forceSingle or set a layoutOveride instead"),a===!1?this.forceSingle(!0):this.forceSingle(!1)},EPUBJS.Book.prototype.forceSingle=function(a){var b="undefined"==typeof a||a;this.renderer.forceSingle(b),this.settings.forceSingle=b,this.isRendered&&this.renderer.reformat()},EPUBJS.Book.prototype.setMinSpreadWidth=function(a){this.settings.minSpreadWidth=a,this.isRendered&&(this.renderer.setMinSpreadWidth(this.settings.minSpreadWidth),this.renderer.reformat())},EPUBJS.Book.prototype.setGap=function(a){this.settings.gap=a,this.isRendered&&(this.renderer.setGap(this.settings.gap),this.renderer.reformat())},EPUBJS.Book.prototype.chapter=function(a){var b,c,d=this.spineIndexByURL[a];return d&&(b=this.spine[d],c=new EPUBJS.Chapter(b,this.store,this.settings.withCredentials),c.load()),c},EPUBJS.Book.prototype.unload=function(){this.settings.restore&&localStorage&&this.saveContents(),this.unlistenToRenderer(this.renderer),this.trigger("book:unload")},EPUBJS.Book.prototype.destroy=function(){window.removeEventListener("beforeunload",this.unload),this.currentChapter&&this.currentChapter.unload(),this.unload(),this.renderer&&this.renderer.remove()},EPUBJS.Book.prototype._ready=function(){this.trigger("book:ready")},EPUBJS.Book.prototype._rendered=function(a){this.isRendered=!0,this.trigger("book:rendered"),this._q.flush()},EPUBJS.Book.prototype.applyStyles=function(a,b){a.applyStyles(this.settings.styles),b()},EPUBJS.Book.prototype.applyClasses=function(a,b){a.setClasses(this.settings.classes),b()},EPUBJS.Book.prototype.applyHeadTags=function(a,b){a.applyHeadTags(this.settings.headTags),b()},EPUBJS.Book.prototype._registerReplacements=function(a){a.registerHook("beforeChapterDisplay",this.applyStyles.bind(this,a),!0),a.registerHook("beforeChapterDisplay",this.applyHeadTags.bind(this,a),!0),a.registerHook("beforeChapterDisplay",this.applyClasses.bind(this,a),!0),a.registerHook("beforeChapterDisplay",EPUBJS.replace.hrefs.bind(this),!0)},EPUBJS.Book.prototype._needsAssetReplacement=function(){return!!this.settings.fromStorage||!!this.settings.contained},EPUBJS.Book.prototype.parseLayoutProperties=function(a){var b=this.settings.layoutOveride&&this.settings.layoutOveride.layout||a.layout||"reflowable",c=this.settings.layoutOveride&&this.settings.layoutOveride.spread||a.spread||"auto",d=this.settings.layoutOveride&&this.settings.layoutOveride.orientation||a.orientation||"auto";return{layout:b,spread:c,orientation:d}},RSVP.EventTarget.mixin(EPUBJS.Book.prototype),RSVP.on("error",function(a){console.error(a)}),EPUBJS.Chapter=function(a,b,c){this.href=a.href,this.absolute=a.url,this.id=a.id,this.spinePos=a.index,this.cfiBase=a.cfiBase,this.properties=a.properties,this.manifestProperties=a.manifestProperties,this.linear=a.linear,this.pages=1,this.store=b,this.credentials=c,this.epubcfi=new EPUBJS.EpubCFI,this.deferred=new RSVP.defer,this.loaded=this.deferred.promise,EPUBJS.Hooks.mixin(this),this.getHooks("beforeChapterRender"),this.caches={}},EPUBJS.Chapter.prototype.load=function(a,b){var c,d=a||this.store,e=b||this.credentials;return c=d?d.getXml(this.absolute):EPUBJS.core.request(this.absolute,!1,e),c.then(function(a){try{this.setDocument(a),this.deferred.resolve(this)}catch(a){this.deferred.reject({message:this.absolute+" -> "+a.message,stack:(new Error).stack})}}.bind(this)),c},EPUBJS.Chapter.prototype.render=function(a){return this.load().then(function(a){var b=a.querySelector("head"),c=a.createElement("base");return c.setAttribute("href",this.absolute),b.insertBefore(c,b.firstChild),this.contents=a,new RSVP.Promise(function(b,c){this.triggerHooks("beforeChapterRender",function(){b(a)}.bind(this),this)}.bind(this))}.bind(this)).then(function(a){var b=new XMLSerializer,c=b.serializeToString(a);return c}.bind(this))},EPUBJS.Chapter.prototype.url=function(a){var b,c=new RSVP.defer,d=a||this.store,e=this;return d?this.tempUrl?(b=this.tempUrl,c.resolve(b)):d.getUrl(this.absolute).then(function(a){e.tempUrl=a,c.resolve(a)}):(b=this.absolute,c.resolve(b)),c.promise},EPUBJS.Chapter.prototype.setPages=function(a){this.pages=a},EPUBJS.Chapter.prototype.getPages=function(a){return this.pages},EPUBJS.Chapter.prototype.getID=function(){return this.ID},EPUBJS.Chapter.prototype.unload=function(a){this.document=null,this.tempUrl&&a&&(a.revokeUrl(this.tempUrl),this.tempUrl=!1)},EPUBJS.Chapter.prototype.setDocument=function(a){this.document=a,this.contents=a.documentElement,!this.document.evaluate&&document.evaluate&&(this.document.evaluate=document.evaluate)},EPUBJS.Chapter.prototype.cfiFromRange=function(a){var b,c,d,e,f,g,h;if(this.document){if("undefined"!=typeof document.evaluate){if(c=EPUBJS.core.getElementXPath(a.startContainer),d=EPUBJS.core.getElementXPath(a.endContainer),e=this.document.evaluate(c,this.document,EPUBJS.core.nsResolver,XPathResult.FIRST_ORDERED_NODE_TYPE,null).singleNodeValue,a.collapsed||(f=this.document.evaluate(d,this.document,EPUBJS.core.nsResolver,XPathResult.FIRST_ORDERED_NODE_TYPE,null).singleNodeValue),b=this.document.createRange(),e)try{b.setStart(e,a.startOffset),!a.collapsed&&f&&b.setEnd(f,a.endOffset)}catch(a){console.log("missed"),e=!1}e||(console.log("not found, try fuzzy match"),g=EPUBJS.core.cleanStringForXpath(a.startContainer.textContent),c="//text()[contains(.,"+g+")]",e=this.document.evaluate(c,this.document,EPUBJS.core.nsResolver,XPathResult.FIRST_ORDERED_NODE_TYPE,null).singleNodeValue,e&&(b.setStart(e,a.startOffset),a.collapsed||(h=EPUBJS.core.cleanStringForXpath(a.endContainer.textContent),d="//text()[contains(.,"+h+")]",f=this.document.evaluate(d,this.document,EPUBJS.core.nsResolver,XPathResult.FIRST_ORDERED_NODE_TYPE,null).singleNodeValue,f&&b.setEnd(f,a.endOffset))))}else b=a;return this.epubcfi.generateCfiFromRange(b,this.cfiBase)}},EPUBJS.Chapter.prototype.find=function(a){var b=this,c=[],d=a.toLowerCase(),e=function(a){for(var e,f,g,h=a.textContent.toLowerCase(),i=b.document.createRange(),j=-1,k=150;f!=-1;)f=h.indexOf(d,j+1),f!=-1&&(i=b.document.createRange(),i.setStart(a,f),i.setEnd(a,f+d.length),e=b.cfiFromRange(i),a.textContent.lengthb?1:a0?i:i+1:0===f?i:f===-1?EPUBJS.core.locationOf(a,b,c,i,h):EPUBJS.core.locationOf(a,b,c,g,i))},EPUBJS.core.indexOfSorted=function(a,b,c,d,e){var f,g=d||0,h=e||b.length,i=parseInt(g+(h-g)/2);return c||(c=function(a,b){return a>b?1:a0;){if(c=d.shift(),"text"===c.type?(e=g.childNodes[c.index],g=e.parentNode||g):g=c.id?f.getElementById(c.id):h[c.index],!g||"undefined"==typeof g)return console.error("No Element For",c,a.str),!1;h=Array.prototype.slice.call(g.children)}return g},EPUBJS.EpubCFI.prototype.compare=function(a,b){if("string"==typeof a&&(a=new EPUBJS.EpubCFI(a)),"string"==typeof b&&(b=new EPUBJS.EpubCFI(b)),a.spinePos>b.spinePos)return 1;if(a.spinePosb.steps[c].index)return 1;if(a.steps[c].indexb.characterOffset?1:a.characterOffset")},EPUBJS.EpubCFI.prototype.generateRangeFromCfi=function(a,b){var c,d,e,f,g,h,i=b||document,j=i.createRange();return"string"==typeof a&&(a=this.parse(a)),a.spinePos!==-1&&(c=a.steps[a.steps.length-1],"undefined"!=typeof document.evaluate?(d=this.generateXpathFromSteps(a.steps),e=i.evaluate(d,i,null,XPathResult.FIRST_ORDERED_NODE_TYPE,null).singleNodeValue):(g=this.generateQueryFromSteps(a.steps),h=i.querySelector(g),h&&"text"==c.type&&(e=h.childNodes[c.index])),e?(e&&a.characterOffset>=0?(f=e.length,a.characterOffset-1&&this.hooks[a].splice(c,1)):Array.isArray(b)&&b.forEach(function(b){c=this.hooks[a].indexOf(b),c>-1&&this.hooks[a].splice(c,1)},this))},a.prototype.triggerHooks=function(a,b,c){function d(){f--,f<=0&&b&&b()}var e,f;return"undefined"!=typeof this.hooks[a]&&(e=this.hooks[a],f=e.length,0===f&&b&&b(),void e.forEach(function(a){a(d,c)}))},{register:function(a){if(void 0===EPUBJS.hooks[a]&&(EPUBJS.hooks[a]={}),"object"!=typeof EPUBJS.hooks[a])throw"Already registered: "+a;return EPUBJS.hooks[a]},mixin:function(b){for(var c in a.prototype)b[c]=a.prototype[c]}}}(),EPUBJS.Layout=EPUBJS.Layout||{},EPUBJS.Layout.isFixedLayout=function(a){var b=a.querySelector("[name=viewport]");if(!b||!b.hasAttribute("content"))return!1;var c=b.getAttribute("content");return/,/.test(c)},EPUBJS.Layout.Reflowable=function(){this.documentElement=null,this.spreadWidth=null},EPUBJS.Layout.Reflowable.prototype.format=function(a,b,c,d){var e=EPUBJS.core.prefixed("columnAxis"),f=EPUBJS.core.prefixed("columnGap"),g=EPUBJS.core.prefixed("columnWidth"),h=EPUBJS.core.prefixed("columnFill"),i=Math.floor(b),j=Math.floor(i/8),k=d>=0?d:j%2===0?j:j-1;return this.documentElement=a,this.spreadWidth=i+k,a.style.overflow="hidden",a.style.width=i+"px",a.style.height=c+"px",a.style[e]="horizontal",a.style[h]="auto",a.style[g]=i+"px",a.style[f]=k+"px",this.colWidth=i,this.gap=k,{pageWidth:this.spreadWidth,pageHeight:c}},EPUBJS.Layout.Reflowable.prototype.calculatePages=function(){var a,b;return this.documentElement.style.width="auto",a=this.documentElement.scrollWidth,b=Math.ceil(a/this.spreadWidth),{displayedPages:b,pageCount:b}},EPUBJS.Layout.ReflowableSpreads=function(){this.documentElement=null,this.spreadWidth=null},EPUBJS.Layout.ReflowableSpreads.prototype.format=function(a,b,c,d){var e=EPUBJS.core.prefixed("columnAxis"),f=EPUBJS.core.prefixed("columnGap"),g=EPUBJS.core.prefixed("columnWidth"),h=EPUBJS.core.prefixed("columnFill"),i=2,j=Math.floor(b),k=j%2===0?j:j-1,l=Math.floor(k/8),m=d>=0?d:l%2===0?l:l-1,n=Math.floor((k-m)/i);return this.documentElement=a,this.spreadWidth=(n+m)*i,a.style.overflow="hidden",a.style.width=k+"px",a.style.height=c+"px",a.style[e]="horizontal",a.style[h]="auto",a.style[f]=m+"px",a.style[g]=n+"px",this.colWidth=n,this.gap=m,{pageWidth:this.spreadWidth,pageHeight:c}},EPUBJS.Layout.ReflowableSpreads.prototype.calculatePages=function(){var a=this.documentElement.scrollWidth,b=Math.ceil(a/this.spreadWidth);return this.documentElement.style.width=b*this.spreadWidth-this.gap+"px",{displayedPages:b,pageCount:2*b}},EPUBJS.Layout.Fixed=function(){this.documentElement=null},EPUBJS.Layout.Fixed.prototype.format=function(a,b,c,d){var e,f,g,h,i=EPUBJS.core.prefixed("columnWidth"),j=EPUBJS.core.prefixed("transform"),k=EPUBJS.core.prefixed("transformOrigin"),l=a.querySelector("[name=viewport]");this.documentElement=a,l&&l.hasAttribute("content")&&(e=l.getAttribute("content"),f=e.split(","),f[0]&&(g=f[0].replace("width=","")),f[1]&&(h=f[1].replace("height=","")));var m=b/g,n=c/h,o=m=e?g.resolve():(d=c,b=new EPUBJS.Chapter(this.spine[d],this.store,this.credentials),this.process(b).then(function(){setTimeout(function(){f(g)},1)})),g.promise}.bind(this);return"number"==typeof a&&(this.break=a),b=f().then(function(){this.total=this._locations.length-1,this._currentCfi&&(this.currentLocation=this._currentCfi),c.resolve(this._locations)}.bind(this)),c.promise},EPUBJS.Locations.prototype.process=function(a){return a.load().then(function(b){var c,d,e,f=b,g=f.documentElement.querySelector("body"),h=0;this.sprint(g,function(b){var g,i=b.length,j=0;for(0===h&&(c=f.createRange(),c.setStart(b,0)),g=this.break-h,g>i&&(h+=i,j=i);j=i?h=i-(j-this.break):(c.setEnd(b,j),e=a.cfiFromRange(c),this._locations.push(e),h=0,j+=1,c=f.createRange(),c.setStart(b,j));d=b}.bind(this)),c&&(c.setEnd(d,d.length),e=a.cfiFromRange(c),this._locations.push(e),h=0)}.bind(this))},EPUBJS.Locations.prototype.sprint=function(a,b){for(var c,d=document.createTreeWalker(a,NodeFilter.SHOW_TEXT,null,!1);c=d.nextNode();)b(c)},EPUBJS.Locations.prototype.locationFromCfi=function(a){return 0===this._locations.length?-1:EPUBJS.core.locationOf(a,this._locations,this.epubcfi.compare)},EPUBJS.Locations.prototype.percentageFromCfi=function(a){var b=this.locationFromCfi(a);return this.percentageFromLocation(b)},EPUBJS.Locations.prototype.percentageFromLocation=function(a){return a&&this.total?a/this.total:0},EPUBJS.Locations.prototype.cfiFromLocation=function(a){var b=-1;return"number"!=typeof a&&(a=parseInt(a)),a>=0&&a1?a/100:a,c=Math.ceil(this.total*b);return this.cfiFromLocation(c)},EPUBJS.Locations.prototype.load=function(a){return this._locations=JSON.parse(a),this.total=this._locations.length-1,this._locations},EPUBJS.Locations.prototype.save=function(a){return JSON.stringify(this._locations)},EPUBJS.Locations.prototype.getCurrent=function(a){return this._current},EPUBJS.Locations.prototype.setCurrent=function(a){var b;if("string"==typeof a)this._currentCfi=a;else{if("number"!=typeof a)return;this._current=a}0!==this._locations.length&&("string"==typeof a?(b=this.locationFromCfi(a),this._current=b):b=a,this.trigger("changed",{percentage:this.percentageFromLocation(b)}))},Object.defineProperty(EPUBJS.Locations.prototype,"currentLocation",{get:function(){return this._current},set:function(a){this.setCurrent(a)}}),RSVP.EventTarget.mixin(EPUBJS.Locations.prototype),EPUBJS.Pagination=function(a){this.pages=[],this.locations=[],this.epubcfi=new EPUBJS.EpubCFI,a&&a.length&&this.process(a)},EPUBJS.Pagination.prototype.process=function(a){a.forEach(function(a){this.pages.push(a.page),this.locations.push(a.cfi)},this),this.pageList=a,this.firstPage=parseInt(this.pages[0]),this.lastPage=parseInt(this.pages[this.pages.length-1]),this.totalPages=this.lastPage-this.firstPage},EPUBJS.Pagination.prototype.pageFromCfi=function(a){var b=-1;if(0===this.locations.length)return-1;var c=EPUBJS.core.indexOfSorted(a,this.locations,this.epubcfi.compare);return c!=-1?b=this.pages[c]:(c=EPUBJS.core.locationOf(a,this.locations,this.epubcfi.compare),b=c-1>=0?this.pages[c-1]:this.pages[0],void 0!==b||(b=-1)),b},EPUBJS.Pagination.prototype.cfiFromPage=function(a){var b=-1;"number"!=typeof a&&(a=parseInt(a));var c=this.pages.indexOf(a);return c!=-1&&(b=this.locations[c]),b},EPUBJS.Pagination.prototype.pageFromPercentage=function(a){var b=Math.round(this.totalPages*a);return b},EPUBJS.Pagination.prototype.percentageFromPage=function(a){var b=(a-this.firstPage)/this.totalPages;return Math.round(1e3*b)/1e3},EPUBJS.Pagination.prototype.percentageFromCfi=function(a){var b=this.pageFromCfi(a),c=this.percentageFromPage(b);return c},EPUBJS.Parser=function(a){this.baseUrl=a||""},EPUBJS.Parser.prototype.container=function(a){var b,c,d,e;return a?(b=a.querySelector("rootfile"))?(c=b.getAttribute("full-path"), +d=EPUBJS.core.uri(c).directory,e=a.xmlEncoding,{packagePath:c,basePath:d,encoding:e}):void console.error("No RootFile Found"):void console.error("Container File Not Found")},EPUBJS.Parser.prototype.identifier=function(a){var b;return a?(b=a.querySelector("metadata"),b?this.getElementText(b,"identifier"):void console.error("No Metadata Found")):void console.error("Package File Not Found")},EPUBJS.Parser.prototype.packageContents=function(a,b){var c,d,e,f,g,h,i,j,k,l,m,n=this;return b&&(this.baseUrl=b),a?(c=a.querySelector("metadata"))?(d=a.querySelector("manifest"))?(e=a.querySelector("spine"))?(f=n.manifest(d),g=n.findNavPath(d),h=n.findTocPath(d,e),i=n.findCoverPath(a),j=Array.prototype.indexOf.call(e.parentNode.childNodes,e),k=n.spine(e,f),l={},k.forEach(function(a){l[a.href]=a.index}),m=n.metadata(c),m.direction=e.getAttribute("page-progression-direction"),{metadata:m,spine:k,manifest:f,navPath:g,tocPath:h,coverPath:i,spineNodeIndex:j,spineIndexByURL:l}):void console.error("No Spine Found"):void console.error("No Manifest Found"):void console.error("No Metadata Found"):void console.error("Package File Not Found")},EPUBJS.Parser.prototype.findNavPath=function(a){var b=a.querySelector("item[properties$='nav'], item[properties^='nav '], item[properties*=' nav ']");return!!b&&b.getAttribute("href")},EPUBJS.Parser.prototype.findTocPath=function(a,b){var c,d=a.querySelector("item[media-type='application/x-dtbncx+xml']");return d||(c=b.getAttribute("toc"),c&&(d=a.querySelector("item[id='"+c+"']"))),!!d&&d.getAttribute("href")},EPUBJS.Parser.prototype.metadata=function(a){var b={},c=this;return b.bookTitle=c.getElementText(a,"title"),b.creator=c.getElementText(a,"creator"),b.description=c.getElementText(a,"description"),b.pubdate=c.getElementText(a,"date"),b.publisher=c.getElementText(a,"publisher"),b.identifier=c.getElementText(a,"identifier"),b.language=c.getElementText(a,"language"),b.rights=c.getElementText(a,"rights"),b.modified_date=c.querySelectorText(a,"meta[property='dcterms:modified']"),b.layout=c.querySelectorText(a,"meta[property='rendition:layout']"),b.orientation=c.querySelectorText(a,"meta[property='rendition:orientation']"),b.spread=c.querySelectorText(a,"meta[property='rendition:spread']"),b},EPUBJS.Parser.prototype.findCoverPath=function(a){var b=a.querySelector("package").getAttribute("version");if("2.0"===b){var c=a.querySelector('meta[name="cover"]');if(c){var d=c.getAttribute("content"),e=a.querySelector("item[id='"+d+"']");return!!e&&e.getAttribute("href")}return!1}var f=a.querySelector("item[properties='cover-image']");return!!f&&f.getAttribute("href")},EPUBJS.Parser.prototype.getElementText=function(a,b){var c,d=a.getElementsByTagNameNS("http://purl.org/dc/elements/1.1/",b);return d&&0!==d.length?(c=d[0],c.childNodes.length?c.childNodes[0].nodeValue:""):""},EPUBJS.Parser.prototype.querySelectorText=function(a,b){var c=a.querySelector(b);return c&&c.childNodes.length?c.childNodes[0].nodeValue:""},EPUBJS.Parser.prototype.manifest=function(a){var b=this.baseUrl,c={},d=a.querySelectorAll("item"),e=Array.prototype.slice.call(d);return e.forEach(function(a){var d=a.getAttribute("id"),e=a.getAttribute("href")||"",f=a.getAttribute("media-type")||"",g=a.getAttribute("properties")||"";c[d]={href:e,url:b+e,type:f,properties:g}}),c},EPUBJS.Parser.prototype.spine=function(a,b){var c=a.getElementsByTagName("itemref"),d=Array.prototype.slice.call(c),e=Array.prototype.indexOf.call(a.parentNode.childNodes,a),f=new EPUBJS.EpubCFI;return d.map(function(a,c){var d=a.getAttribute("idref"),g=f.generateChapterComponent(e,c,d),h=a.getAttribute("properties")||"",i=h.length?h.split(" "):[],j=b[d].properties,k=j.length?j.split(" "):[];return{id:d,linear:a.getAttribute("linear")||"",properties:i,manifestProperties:k,href:b[d].href,url:b[d].url,index:c,cfiBase:g,cfi:"epubcfi("+g+")"}})},EPUBJS.Parser.prototype.querySelectorByType=function(a,b,c){var d=a.querySelector(b+'[*|type="'+c+'"]');if(null!==d&&0!==d.length)return d;d=a.querySelectorAll(b);for(var e=0;e1&&d[1],{cfi:f,href:h,packageUrl:e,page:j}):{href:h,page:j}},EPUBJS.Render.Iframe=function(){this.iframe=null,this.document=null,this.window=null,this.docEl=null,this.bodyEl=null,this.headEl=null,this.leftPos=0,this.pageWidth=0,this.id=EPUBJS.core.uuid()},EPUBJS.Render.Iframe.prototype.create=function(){return this.element=document.createElement("div"),this.element.id="epubjs-view:"+this.id,this.isMobile=navigator.userAgent.match(/(iPad|iPhone|iPod|Mobile|Android)/g),this.transform=EPUBJS.core.prefixed("transform"),this.element},EPUBJS.Render.Iframe.prototype.addIframe=function(){return this.iframe=document.createElement("iframe"),this.iframe.id="epubjs-iframe:"+this.id,this.iframe.scrolling=this.scrolling||"no",this.iframe.seamless="seamless",this.iframe.style.border="none",this.iframe.addEventListener("load",this.loaded.bind(this),!1),(this._width||this._height)&&(this.iframe.height=this._height,this.iframe.width=this._width),this.iframe},EPUBJS.Render.Iframe.prototype.load=function(a,b){var c=this,d=new RSVP.defer;return this.window&&this.unload(),this.iframe&&this.element.removeChild(this.iframe),this.iframe=this.addIframe(),this.element.appendChild(this.iframe),this.iframe.onload=function(a){c.document=c.iframe.contentDocument,c.docEl=c.document.documentElement,c.headEl=c.document.head,c.bodyEl=c.document.body||c.document.querySelector("body"),c.window=c.iframe.contentWindow,c.window.addEventListener("resize",c.resized.bind(c),!1),c.leftPos=0,c.setLeft(0),c.bodyEl&&(c.bodyEl.style.margin="0"),d.resolve(c.docEl)},this.iframe.onerror=function(a){d.reject({message:"Error Loading Contents: "+a,stack:(new Error).stack})},this.document=this.iframe.contentDocument,this.document?(this.iframe.contentDocument.open(),this.iframe.contentDocument.write(a),this.iframe.contentDocument.close(),d.promise):(d.reject(new Error("No Document Available")),d.promise)},EPUBJS.Render.Iframe.prototype.loaded=function(a){var b,c,d=this.iframe.contentWindow.location.href;this.document=this.iframe.contentDocument,this.docEl=this.document.documentElement,this.headEl=this.document.head,this.bodyEl=this.document.body||this.document.querySelector("body"),this.window=this.iframe.contentWindow,this.window.focus(),"about:blank"!=d&&(b=this.iframe.contentDocument.querySelector("base"),c=b.getAttribute("href"),this.trigger("render:loaded",c))},EPUBJS.Render.Iframe.prototype.resize=function(a,b){this.element&&(this.element.style.height=b,isNaN(a)||a%2===0||(a+=1),this.element.style.width=a,this.iframe&&(this.iframe.height=b,this.iframe.width=a),this._height=b,this._width=a,this.width=parseInt(window.getComputedStyle(document.getElementById("viewer")).width)||a,this.height=parseInt(window.getComputedStyle(document.getElementById("viewer")).height)||b)},EPUBJS.Render.Iframe.prototype.resized=function(a){this.width=parseInt(window.getComputedStyle(document.getElementById("viewer")).width),this.height=parseInt(window.getComputedStyle(document.getElementById("viewer")).height)},EPUBJS.Render.Iframe.prototype.totalWidth=function(){return this.docEl.scrollWidth},EPUBJS.Render.Iframe.prototype.totalHeight=function(){return this.docEl.scrollHeight},EPUBJS.Render.Iframe.prototype.setPageDimensions=function(a,b){this.pageWidth=a,this.pageHeight=b},EPUBJS.Render.Iframe.prototype.setDirection=function(a){this.direction=a,this.docEl&&"rtl"==this.docEl.dir&&(this.docEl.dir="rtl","pre-paginated"!==this.layout&&(this.docEl.style.position="static",this.docEl.style.right="auto"))},EPUBJS.Render.Iframe.prototype.setLeft=function(a){this.isMobile?this.docEl.style[this.transform]="translate("+-a+"px, 0)":this.document.defaultView.scrollTo(a,0)},EPUBJS.Render.Iframe.prototype.setLayout=function(a){this.layout=a},EPUBJS.Render.Iframe.prototype.setStyle=function(a,b,c){c&&(a=EPUBJS.core.prefixed(a)),this.headEl&&(this.headEl.style[a]=b)},EPUBJS.Render.Iframe.prototype.removeStyle=function(a){this.headEl&&(this.headEl.style[a]="")},EPUBJS.Render.Iframe.prototype.setClasses=function(a){this.bodyEl&&(this.bodyEl.className=a.join(" "))},EPUBJS.Render.Iframe.prototype.addHeadTag=function(a,b,c){var d=c||this.document,e=d.createElement(a),f=d.head;for(var g in b)e.setAttribute(g,b[g]);f&&f.insertBefore(e,f.firstChild)},EPUBJS.Render.Iframe.prototype.page=function(a){this.leftPos=this.pageWidth*(a-1),"rtl"===this.direction&&(this.leftPos=this.leftPos*-1),this.setLeft(this.leftPos)},EPUBJS.Render.Iframe.prototype.getPageNumberByElement=function(a){var b,c;if(a)return b=this.leftPos+a.getBoundingClientRect().left,c=Math.floor(b/this.pageWidth)+1},EPUBJS.Render.Iframe.prototype.getPageNumberByRect=function(a){var b,c;return b=this.leftPos+a.left,c=Math.floor(b/this.pageWidth)+1},EPUBJS.Render.Iframe.prototype.getBaseElement=function(){return this.bodyEl},EPUBJS.Render.Iframe.prototype.getDocumentElement=function(){return this.docEl},EPUBJS.Render.Iframe.prototype.isElementVisible=function(a){var b,c;return!!(a&&"function"==typeof a.getBoundingClientRect&&(b=a.getBoundingClientRect(),c=b.left,0!==b.width&&0!==b.height&&c>=0&&c=1&&a<=this.displayedPages&&(this.chapterPos=a,this.render.page(a),this.visibleRangeCfi=this.getVisibleRangeCfi(),this.currentLocationCfi=this.visibleRangeCfi.start,this.trigger("renderer:locationChanged",this.currentLocationCfi),this.trigger("renderer:visibleRangeChanged",this.visibleRangeCfi),!0):(console.warn("pageMap not set, queuing"),this._q.enqueue("page",arguments),!0)},EPUBJS.Renderer.prototype.nextPage=function(){return this.page(this.chapterPos+1)},EPUBJS.Renderer.prototype.prevPage=function(){return this.page(this.chapterPos-1)},EPUBJS.Renderer.prototype.pageByElement=function(a){var b;a&&(b=this.render.getPageNumberByElement(a),this.page(b))},EPUBJS.Renderer.prototype.lastPage=function(){return this._moving?this._q.enqueue("lastPage",arguments):void this.page(this.displayedPages)},EPUBJS.Renderer.prototype.firstPage=function(){return this._moving?this._q.enqueue("firstPage",arguments):void this.page(1)},EPUBJS.Renderer.prototype.section=function(a){var b=this.doc.getElementById(a);b&&this.pageByElement(b)},EPUBJS.Renderer.prototype.firstElementisTextNode=function(a){var b=a.childNodes,c=b.length;return!!(c&&b[0]&&3===b[0].nodeType&&b[0].textContent.trim().length)},EPUBJS.Renderer.prototype.isGoodNode=function(a){var b=["audio","canvas","embed","iframe","img","math","object","svg","video"];return b.indexOf(a.tagName.toLowerCase())!==-1||this.firstElementisTextNode(a)},EPUBJS.Renderer.prototype.walk=function(a,b,c){for(var d,e,f,g,h=a,i=[h],j=1e4,k=0;!d&&i.length;){if(a=i.shift(),this.containsPoint(a,b,c)&&this.isGoodNode(a)&&(d=a),!d&&a&&a.childElementCount>0){if(e=a.children,!e||!e.length)return d;f=e.length?e.length:0;for(var l=f-1;l>=0;l--)e[l]!=g&&i.unshift(e[l])}if(!d&&0===i.length&&h&&null!==h.parentNode&&(i.push(h.parentNode),g=h,h=h.parentNode),k++,k>j){console.error("ENDLESS LOOP");break}}return d},EPUBJS.Renderer.prototype.containsPoint=function(a,b,c){var d;return!!(a&&"function"==typeof a.getBoundingClientRect&&(d=a.getBoundingClientRect(),0!==d.width&&0!==d.height&&d.left>=b&&b<=d.left+d.width))},EPUBJS.Renderer.prototype.textSprint=function(a,b){var c,d,e=function(a){return/^\s*$/.test(a.data)?NodeFilter.FILTER_REJECT:NodeFilter.FILTER_ACCEPT};try{for(c=document.createTreeWalker(a,NodeFilter.SHOW_TEXT,{acceptNode:e},!1);d=c.nextNode();)b(d)}catch(f){for(c=document.createTreeWalker(a,NodeFilter.SHOW_TEXT,e,!1);d=c.nextNode();)b(d)}},EPUBJS.Renderer.prototype.sprint=function(a,b){for(var c,d=document.createTreeWalker(a,NodeFilter.SHOW_ELEMENT,null,!1);c=d.nextNode();)b(c)},EPUBJS.Renderer.prototype.mapPage=function(){var a,b,c,d,e,f,g,h,i=this,j=[],k=this.render.getBaseElement(),l=1,m=this.layout.colWidth+this.layout.gap,n=this.formated.pageWidth*(this.chapterPos-1),o=m*l-n,p=0,q=function(b){var 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"").fontSize.match(/(\d*(\.\d*)?)px/)[1]), + fontAdjust = fontSize ? fontSize / 2 : 0; + + iheight = renderer.contents.clientHeight; + if(top < 0) top = 0; + + if(height + top >= iheight) { + + if(top < iheight/2) { + // Remove top and half font-size from height to keep container from overflowing + newHeight = iheight - top - fontAdjust; + item.style.maxHeight = newHeight + "px"; + item.style.width= "auto"; + }else{ + if(height > iheight) { + item.style.maxHeight = iheight + "px"; + item.style.width= "auto"; + itemRect = item.getBoundingClientRect(); + height = itemRect.height; + } + item.style.display = "block"; + item.style["WebkitColumnBreakBefore"] = "always"; + item.style["breakBefore"] = "column"; + + } + + item.setAttribute('data-height', newHeight); + + }else{ + item.style.removeProperty('max-height'); + item.style.removeProperty('margin-top'); + } + } + + var unloaded = function(){ + // item.removeEventListener('load', size); // crashes in IE + renderer.off("renderer:resized", 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