1477 lines
48 KiB
JavaScript
1477 lines
48 KiB
JavaScript
var CBRJS = CBRJS || {};
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CBRJS.VERSION = "0.0.1";
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CBRJS.basePath = CBRJS.basePath || "";
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CBRJS.session = CBRJS.session || {};
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CBRJS.Reader = function(bookPath, _options) {
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var reader = this,
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$progressbar = $('.bar'),
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search = window.location.search,
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parameters,
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options,
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found;
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this.options = options = $.extend(true, _options || {}, {
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bookPath: bookPath,
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session: {}
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});
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// Overide options with search parameters
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if(search) {
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parameters = search.slice(1).split("&");
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parameters.forEach(function(p){
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var split = p.split("=");
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var name = split[0];
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var value = split[1] || '';
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reader.options[name] = decodeURIComponent(value);
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});
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}
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function extractImages(url, opts) {
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var images = [],
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xhr = new XMLHttpRequest(),
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filename = decodeURIComponent(url.split('/').pop()),
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re_file_ext = new RegExp(/\.([a-z]+)$/),
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format = filename.toLowerCase().match(re_file_ext)[1],
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archive_class = ({ cbz: 'Unzipper', cbr: 'Unrarrer' })[format],
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options = $.extend({
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start: function () {},
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extract: function (page_url) {},
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progress: function (percent_complete) {},
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finish: function (images) {}
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}, opts);
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if (!archive_class) {
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alert('invalid file type, only cbz and cbr are supported.');
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return false;
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}
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xhr.open('GET',url, true);
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options.start(filename);
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xhr.responseType = "arraybuffer";
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xhr.onprogress = function (e) {
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if (e.lengthComputable) {
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$progressbar.css('width', Math.floor((e.loaded / e.total) * 100) + '%');
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}
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};
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xhr.onloadstart = function (e) {
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$progressbar.css('width', '0%');
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};
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xhr.onloadend = function (e) {
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$('.icon-cloud_download').addClass('ok');
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reader.options.session.size = e.total;
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};
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xhr.onload = function () {
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if ((this.status === 200) && this.response) {
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var done = false;
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var ua = new bitjs.archive[archive_class](this.response, document.head.dataset.staticpath + 'public/bitjs/');
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ua.addEventListener(bitjs.archive.UnarchiveEvent.Type.START, function (e) {
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$progressbar.css('width', '0%');
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$('.icon-unarchive').addClass('active');
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});
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ua.addEventListener(bitjs.archive.UnarchiveEvent.Type.EXTRACT, function (e) {
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var mimetype, blob, url;
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var file_extension = e.unarchivedFile.filename.toLowerCase().match(re_file_ext)[1];
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switch (file_extension) {
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case 'jpg':
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case 'jpeg':
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mimetype = 'image/jpeg';
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break;
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case 'png':
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mimetype = 'image/png';
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break;
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case 'gif':
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mimetype = 'image/gif';
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break;
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default:
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return false;
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}
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blob = new Blob([e.unarchivedFile.fileData], { type: mimetype });
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url = window.URL.createObjectURL(blob);
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images.push(url);
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options.extract(url, blob);
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});
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ua.addEventListener(bitjs.archive.UnarchiveEvent.Type.PROGRESS, function (e) {
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options.progress(Math.floor(e.currentBytesUnarchived / e.totalUncompressedBytesInArchive * 100));
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});
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ua.addEventListener(bitjs.archive.UnarchiveEvent.Type.FINISH, function (e) {
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options.finish(images);
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});
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ua.addEventListener(bitjs.archive.UnarchiveEvent.Type.ERROR, function (e) {
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$('.icon-unarchive').removeClass('active');
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$('.icon-unarchive').addClass('error');
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$('#message').text('Failed to extract images from archive, file corrupted?');
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});
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}
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ua.start();
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};
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xhr.send();
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}
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function openComicArchive(url, options) {
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var title, page = 0;
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extractImages(url, {
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start: function (filename) {
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this.filename = filename;
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$('.toolbar').addClass('hide');
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$('.navigation').addClass('hide');
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$('.icon-cloud_download').addClass('active');
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$('.message-text').text(filename);
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$('#progressbar').show();
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},
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extract: function (url, blob) {
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$('.message-text').text('extracting page #' + ++page);
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},
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progress: function (percent_complete) {
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$progressbar.css('width', percent_complete + '%');
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},
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finish: function (pages) {
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$('.icon-unarchive').addClass('ok');
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var name = this.filename.replace(/\.[a-z]+$/, '');
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var id = encodeURIComponent(name.toLowerCase());
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var book = new ComicBook('viewer', pages, options);
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document.title = name;
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$('.toolbar').removeClass('hide');
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$('.navigation').removeClass('hide');
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$('#progressbar').hide();
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$('#viewer').show();
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book.draw();
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$(window).on('resize', function () {
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book.draw();
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});
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$(window).on('beforeunload', function(e) {
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book.destroy();
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});
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}
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});
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}
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function getPref (arr, name) {
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if ((arr.constructor === Array) && (found = arr.filter(function(e) { return e.name === name; }))) {
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if (found.hasOwnProperty("value")) {
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return found.value;
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}
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}
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};
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openComicArchive(bookPath, {
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currentPage: parseInt(options.session.cursor.value) || 0,
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enhance: getPref(options.session.preferences, "enhance") || {},
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manga: getPref(options.session.preferences, "manga") || false,
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thumbnails: getPref(options.session.defaults, "thumbnails"),
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thumbnailWidth: parseInt(getPref(options.session.defaults, "thumbnailWidth")) || 200,
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session: options.session
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});
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return this;
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};
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var ComicBook;
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ComicBook = (function ($) {
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'use strict';
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/**
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* Merge two arrays. Any properties in b will replace the same properties in
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* a. New properties from b will be added to a.
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*
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* @param a {Object}
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* @param b {Object}
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*/
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function merge(a, b) {
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var prop;
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if (typeof b === 'undefined') {
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b = {};
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}
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for (prop in a) {
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if (a.hasOwnProperty(prop)) {
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if (prop in b) {
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continue;
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}
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b[prop] = a[prop];
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}
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}
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return b;
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}
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/**
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* Exception class. Always throw an instance of this when throwing exceptions.
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*
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* @param {String} type
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* @param {Object} object
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* @returns {ComicBookException}
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*/
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var ComicBookException = {
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INVALID_ACTION: 'invalid action',
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INVALID_PAGE: 'invalid page',
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INVALID_PAGE_TYPE: 'invalid page type',
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UNDEFINED_CONTROL: 'undefined control',
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INVALID_ZOOM_MODE: 'invalid zoom mode',
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INVALID_NAVIGATION_EVENT: 'invalid navigation event'
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};
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function ComicBook(id, srcs, opts) {
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var self = this;
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var canvas_id = id; // canvas element id
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this.srcs = srcs; // array of image srcs for pages
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var defaults = {
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displayMode: (window.innerWidth > window.innerHeight) ? 'double' : 'single', // single / double
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zoomMode: 'fitWindow', // manual / fitWidth / fitWindow
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manga: false, // true / false
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fullscreen: false, // true / false
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enhance: {}, // image filters to use
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thumbnails: true, // true / false (use thumbnails in index)
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thumbnailWidth: 200, // width of thumbnail
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sidebarWide: false, // use wide sidbar
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currentPage: 0, // current page
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keyboard: {
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32: 'next', // space
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34: 'next', // page-down
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39: 'next', // cursor-right
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33: 'previous', // page-up
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37: 'previous', // cursor-left
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36: 'first', // home
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35: 'last', // end
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83: 'sidebar', // s
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84: 'toolbar', // t
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76: 'toggleLayout', // l
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70: 'toggleFullscreen', // f
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27: 'closeSidebar' // esc
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},
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vendorPath: document.head.dataset.staticpath + 'public/',
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forward_buffer: 3,
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session: {
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getCursor: function() {},
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setCursor: function(value) {},
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getBookmark: function(name, type) {},
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setBookmark: function(name, value, type, content) {},
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getDefault: function(name) {},
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setDefault: function(name, value) {},
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getPreference: function(name) {},
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setPreference: function(name, value) {}
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}
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};
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var options = {};
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this.isMobile = false;
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// mobile enhancements
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if (/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini|Mobile/i.test(navigator.userAgent)) {
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this.isMobile = true;
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document.body.classList.add('mobile');
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window.addEventListener('load', function () {
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setTimeout(function () {
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window.scrollTo(0, 1);
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}, 0);
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});
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}
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window.addEventListener('resize', function () {
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self.setLayout((window.innerWidth > window.innerHeight) ? 'double' : 'single');
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});
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$.extend(true, options, defaults, opts); // options array for internal use
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var no_pages = srcs.length;
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var pages = []; // array of preloaded Image objects
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var canvas; // the HTML5 canvas object
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var context; // the 2d drawing context
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var tcv = document.createElement("canvas"); // canvas used for thumbnailer
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var tctx = tcv.getContext('2d'); // context used for thumbnailer
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var toc = document.getElementById('toc'); // context used for thumbnailer
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var loaded = []; // the images that have been loaded so far
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var scale = 1; // page zoom scale, 1 = 100%
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var is_double_page_spread = false;
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var controlsRendered = false; // have the user controls been inserted into the dom yet?
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var page_requested = false; // used to request non preloaded pages
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var shiv = false;
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/**
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* Gets the window.innerWidth - scrollbars
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*/
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function windowWidth() {
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var height = window.innerHeight + 1;
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if (shiv === false) {
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shiv = $(document.createElement('div'))
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.attr('id', 'cbr-width-shiv')
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.css({
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width: '100%',
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position: 'absolute',
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top: 0,
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zIndex: '-1000'
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});
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$('body').append(shiv);
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}
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shiv.height(height);
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return shiv.innerWidth();
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}
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/**
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* enables the back button
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*/
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function checkHash() {
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var hash = getHash();
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if (hash !== options.currentPage && loaded.indexOf(hash) > -1) {
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options.currentPage = hash;
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self.draw();
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}
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}
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function getHash() {
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var hash = parseInt(location.hash.substring(1), 10) - 1 || 0;
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if (hash < 0) {
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setHash(0);
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hash = 0;
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}
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return hash;
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}
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function setHash(pageNo) {
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location.hash = pageNo;
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}
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// page hash on first load
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var hash = getHash();
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/**
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* Setup the canvas element for use throughout the class.
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*/
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function init() {
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// setup canvas
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canvas = document.getElementById(canvas_id);
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context = canvas.getContext('2d');
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// render user controls
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if (controlsRendered === false) {
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self.renderControls();
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self.tocCreate(no_pages);
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controlsRendered = true;
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}
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// add page controls
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window.addEventListener('keydown', self.navigation, false);
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window.addEventListener('hashchange', checkHash, false);
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// fill in metadata
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options.session.pagecount = srcs.length;
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$('.book-title').text(options.session.title);
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$('.book-format').text(options.session.format);
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$('.book-pagecount').text(options.session.pagecount);
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$('.book-size').text(options.session.size);
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}
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window.addEventListener('touchstart', function (e) {
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var $el = $(e.target);
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if ($el.attr('id') === 'viewer') {
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self.toggleToolbar();
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}
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}, false);
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/**
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* Connect controls to events
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*/
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ComicBook.prototype.renderControls = function () {
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var controls = {}, $toolbar;
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// set values from preferences or defaults
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// do this before connecting listeners to avoid triggering callbacks
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for (var prop in options.enhance) {
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if(options.enhance.hasOwnProperty(prop)) {
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switch (prop) {
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case 'brightness':
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document.getElementById('brightness').value = options.enhance.brightness['brightness'];
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document.getElementById('contrast').value = options.enhance.brightness['contrast'];
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break;
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case 'sharpen':
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document.getElementById('sharpen').value = options.enhance.sharpen['strength'];
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break;
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case 'desaturate':
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$('#image-desaturate').prop('checked', true);
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break;
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case 'removenoise':
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$('#image-removenoise').prop('checked', true);
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break;
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default:
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console.log("unknown enhancement: " + JSON.stringify(prop));
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}
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}
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};
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// thumbnail controls
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$('#thumbnail-generate').prop('checked', options.thumbnails);
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$('#thumbnail-width').val(options.thumbnailWidth);
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if (!options.thumbnails) {
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$('#toc-populate').addClass('open');
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$('#thumbnail-width').prop('disabled', true);
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}
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// connect callbacks
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$('.control').each(function () {
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controls[$(this).attr('name')] = $(this);
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// add event listeners to controls that specify callbacks
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$(this).find('*').andSelf().filter('[data-action][data-trigger]').each(function () {
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var $this = $(this);
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var trigger = $this.data('trigger');
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var action = $this.data('action');
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// trigger a direct method if exists
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if (typeof self[$this.data('action')] === 'function') {
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$this.on(trigger, self[action]);
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}
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// throw an event to be caught outside if the app code
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$this.on(trigger, function (e) {
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$(self).trigger(trigger, e);
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});
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});
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});
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this.controls = controls;
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$toolbar = this.getControl('toolbar');
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$toolbar
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.find('.manga-' + options.manga).show().end()
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.find('.manga-' + !options.manga).hide().end()
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.find('.layout').hide().end().find('.layout-' + options.displayMode).show().end()
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.find('.fullscreen-' + options.fullscreen).show().end()
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.find('.fullscreen-' + !options.fullscreen).hide();
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if (parent !== window) {
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$('.close').removeClass('hide');
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$('.close').on('click', function() { parent.OCA.Epubreader.Plugin.hide(); });
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}
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};
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ComicBook.prototype.getControl = function (control) {
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if (typeof this.controls[control] !== 'object') {
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throw ComicBookException.UNDEFINED_CONTROL + ' ' + control;
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}
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return this.controls[control];
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};
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ComicBook.prototype.showControl = function (control) {
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this.getControl(control).show().addClass('open');
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};
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ComicBook.prototype.hideControl = function (control) {
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this.getControl(control).removeClass('open').hide();
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};
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ComicBook.prototype.toggleControl = function (control) {
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this.getControl(control).toggle().toggleClass('open');
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};
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ComicBook.prototype.toggleLayout = function () {
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self.setLayout((options.displayMode === 'single') ? 'double' : 'single');
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};
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ComicBook.prototype.setLayout = function (layout) {
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var $toolbar = self.getControl('toolbar');
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options.displayMode = (layout === 'single') ? 'single' : 'double';
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$toolbar.find('.layout').hide().end().find('.layout-' + options.displayMode).show();
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self.drawPage();
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};
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/**
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* Create thumbnail for image
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*
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* @return Image
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*/
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ComicBook.prototype.getThumb = function (image) {
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var thumb = new Image();
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var scale = image.width / options.thumbnailWidth;
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tcv.width = options.thumbnailWidth;
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tcv.height = Math.floor(image.height / scale);
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tctx.drawImage(image, 0, 0, tcv.width, tcv.height);
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thumb.src = tcv.toDataURL();
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tctx.clearRect(0, 0, tcv.width, tcv.height);
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return thumb;
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};
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/**
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* Create empty TOC with placeholder images
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*/
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ComicBook.prototype.tocCreate = function (no_pages) {
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// use small image with reasonable aspect ratio
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tcv.width = 5;
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tcv.height = 7;
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// transparent, style with .placeholder in CSS
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tctx.fillStyle = "rgba(200, 200, 200, 0)";
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tctx.fillRect(0, 0, tcv.width, tcv.height);
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var imgsrc = tcv.toDataURL();
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for(var i = 0; i < no_pages; i++) {
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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);
|