mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/MultimediaViewer
synced 2024-11-25 00:25:47 +00:00
d204ecc99a
This heavily relied on deferreds getting resolved synchroneously, which (for .then) is no longer the case with jQuery 3. There's also a difference in how chained .then's get resolved. These tests did not wait for the deferreds to get resolved async, so that had to change. Worse even: some functionality was tested by assuming a handler would not be called (= the test in that handler would not be called), which didn't make the test run, because we never even waited for it to be called. The changes in here are basically: * make mmv.bootstrap.js correctly use .then instead of .done & fail * let mmw.bootstrap.test.js tests wait for unresolved async promises * check call counts instead of running tests inside of callbacks * limit use of fake timer to the 1 test that needs it (it interferes with async, which otherwise don't get resolved) Bug: T164473 Change-Id: I3ca4f786890ad1646f71fe336afdb61e5c3b01c7
626 lines
18 KiB
JavaScript
626 lines
18 KiB
JavaScript
/*
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* This file is part of the MediaWiki extension MultimediaViewer.
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*
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* MultimediaViewer is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* MultimediaViewer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with MultimediaViewer. If not, see <http://www.gnu.org/licenses/>.
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*/
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( function ( mw, $ ) {
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var MMVB;
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/**
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* Bootstrap code listening to thumb clicks checking the initial location.hash
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* Loads the mmv and opens it if necessary
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*
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* @class mw.mmv.MultimediaViewerBootstrap
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*/
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function MultimediaViewerBootstrap() {
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var localStorage = false;
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try {
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localStorage = window.localStorage || false;
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} catch ( e ) { }
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// Exposed for tests
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this.hoverWaitDuration = 200;
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// TODO lazy-load config and htmlUtils
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/** @property {mw.mmv.Config} config - */
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this.config = new mw.mmv.Config(
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mw.config.get( 'wgMultimediaViewer', {} ),
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mw.config,
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mw.user,
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new mw.Api(),
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localStorage
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);
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this.validExtensions = this.config.extensions();
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/** @property {mw.mmv.HtmlUtils} htmlUtils - */
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this.htmlUtils = new mw.mmv.HtmlUtils();
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/**
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* This flag is set to true when we were unable to load the viewer.
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* @property {boolean}
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*/
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this.viewerIsBroken = false;
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this.thumbsReadyDeferred = $.Deferred();
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this.thumbs = [];
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this.$thumbs = null; // will be set by processThumbs
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// find and setup all thumbs on this page
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// this will run initially and then every time the content changes,
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// e.g. via a VE edit or pagination in a multipage file
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mw.hook( 'wikipage.content' ).add( $.proxy( this, 'processThumbs' ) );
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this.browserHistory = window.history;
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}
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MMVB = MultimediaViewerBootstrap.prototype;
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/**
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* Loads the mmv module asynchronously and passes the thumb data to it
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*
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* @param {boolean} [setupOverlay]
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* @return {jQuery.Promise}
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*/
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MMVB.loadViewer = function ( setupOverlay ) {
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var deferred = $.Deferred(),
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bs = this,
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viewer,
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message;
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// Don't load if someone has specifically stopped us from doing so
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if ( mw.config.get( 'wgMediaViewer' ) !== true ) {
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return deferred.reject();
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}
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// FIXME setupOverlay is a quick hack to avoid setting up and immediately
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// removing the overlay on a not-MMV -> not-MMV hash change.
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// loadViewer is called on every click and hash change and setting up
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// the overlay is not needed on all of those; this logic really should
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// not be here.
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if ( setupOverlay ) {
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bs.setupOverlay();
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}
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mw.loader.using( 'mmv', function () {
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try {
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viewer = bs.getViewer();
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} catch ( e ) {
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message = e.message;
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if ( e.stack ) {
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message += '\n' + e.stack;
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}
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deferred.reject( message );
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return;
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}
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deferred.resolve( viewer );
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}, function ( error ) {
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deferred.reject( error.message );
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} );
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return deferred.promise()
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.then(
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function ( viewer ) {
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if ( !bs.viewerInitialized ) {
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if ( bs.thumbs.length ) {
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viewer.initWithThumbs( bs.thumbs );
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}
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bs.viewerInitialized = true;
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}
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return viewer;
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},
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function ( message ) {
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mw.log.warn( message );
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bs.cleanupOverlay();
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bs.viewerIsBroken = true;
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mw.notify( 'Error loading MediaViewer: ' + message );
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return $.Deferred().reject( message );
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}
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);
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};
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/**
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* Processes all thumbs found on the page
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*
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* @param {jQuery} $content Element to search for thumbs
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*/
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MMVB.processThumbs = function ( $content ) {
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var bs = this;
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this.$thumbs = $content.find(
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'.gallery .image img, ' +
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'a.image img, ' +
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'#file a img, ' +
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'figure[typeof*="mw:Image"] > *:first-child > img, ' +
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'span[typeof*="mw:Image"] img'
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);
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try {
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this.$thumbs.each( function ( i, thumb ) {
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bs.processThumb( thumb );
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} );
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} finally {
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this.thumbsReadyDeferred.resolve();
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// now that we have set up our real click handler we can we can remove the temporary
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// handler added in mmv.head.js which just replays clicks to the real handler
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$( document ).off( 'click.mmv-head' );
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}
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};
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/**
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* Check if this thumbnail should be handled by MediaViewer
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*
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* @param {jQuery} $thumb the thumbnail (an `<img>` element) in question
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* @return {boolean}
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*/
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MMVB.isAllowedThumb = function ( $thumb ) {
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var selectors = [
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'.metadata', // this is inside an informational template like {{refimprove}} on enwiki.
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'.noviewer', // MediaViewer has been specifically disabled for this image
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'.noarticletext', // we are on an error page for a non-existing article, the image is part of some template
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'#siteNotice',
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'ul.mw-gallery-slideshow li.gallerybox' // thumbnails of a slideshow gallery
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];
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return $thumb.closest( selectors.join( ', ' ) ).length === 0;
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};
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/**
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* Processes a thumb
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*
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* @param {Object} thumb
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*/
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MMVB.processThumb = function ( thumb ) {
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var bs = this,
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$thumb = $( thumb ),
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$link = $thumb.closest( 'a.image, [typeof*="mw:Image"] > a' ),
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$thumbContain = $link.closest( '.thumb, [typeof*="mw:Image"]' ),
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$enlarge = $thumbContain.find( '.magnify a' ),
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title = mw.Title.newFromImg( $thumb ),
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link = $link.prop( 'href' ),
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alt = $thumb.attr( 'alt' );
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if ( !title || !title.getExtension() || !( title.getExtension().toLowerCase() in bs.validExtensions ) ) {
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return;
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}
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if ( !bs.isAllowedThumb( $thumb ) ) {
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return;
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}
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if ( $thumbContain.length ) {
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// If this is a thumb, we preload JS/CSS when the mouse cursor hovers the thumb container (thumb image + caption + border)
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$thumbContain.mouseenter( function () {
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// There is no point preloading if clicking the thumb won't open Media Viewer
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if ( !bs.config.isMediaViewerEnabledOnClick() ) {
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return;
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}
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bs.preloadOnHoverTimer = setTimeout( function () {
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mw.loader.load( 'mmv' );
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}, bs.hoverWaitDuration );
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} ).mouseleave( function () {
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if ( bs.preloadOnHoverTimer ) {
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clearTimeout( bs.preloadOnHoverTimer );
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}
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} );
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}
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if ( $thumb.closest( '#file' ).length > 0 ) {
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// main thumbnail of a file page
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this.processFilePageThumb( $thumb, title );
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return;
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}
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// This is the data that will be passed onto the mmv
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this.thumbs.push( {
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thumb: thumb,
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$thumb: $thumb,
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title: title,
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link: link,
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alt: alt,
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caption: this.findCaption( $thumbContain, $link ) } );
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$link.add( $enlarge ).click( function ( e ) {
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return bs.click( this, e, title );
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} );
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};
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/**
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* Processes the main thumbnail of a file page by adding some buttons
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* below to open MediaViewer.
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*
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* @param {jQuery} $thumb
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* @param {mw.Title} title
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*/
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MMVB.processFilePageThumb = function ( $thumb, title ) {
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var $link,
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$configLink,
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$filepageButtons,
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bs = this,
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link = $thumb.closest( 'a' ).prop( 'href' );
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// remove the buttons (and the clearing element) if they are already there
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// this should not happen (at least until we support paged media) but just in case
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$( '.mw-mmv-filepage-buttons' ).next().addBack().remove();
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$link = $( '<a>' )
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// It won't matter because we catch the click event anyway, but
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// give the user some URL to see.
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.prop( 'href', link )
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.addClass( 'mw-mmv-view-expanded mw-ui-button mw-ui-icon mw-ui-icon-before' )
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.text( mw.message( 'multimediaviewer-view-expanded' ).text() );
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$configLink = $( '<a>' )
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.prop( 'href', $thumb.closest( 'a' ).prop( 'href' ) )
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.addClass( 'mw-mmv-view-config mw-ui-button mw-ui-icon mw-ui-icon-element' )
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.text( mw.message( 'multimediaviewer-view-config' ).text() );
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$filepageButtons = $( '<div>' )
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.addClass( 'mw-ui-button-group mw-mmv-filepage-buttons' )
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.append( $link, $configLink );
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$( '.fullMedia' ).append(
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$filepageButtons,
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$( '<div>' )
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.css( 'clear', 'both' )
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);
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this.thumbs.push( {
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thumb: $thumb.get( 0 ),
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$thumb: $thumb,
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title: title,
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link: link
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} );
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$link.click( function () {
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if ( bs.statusInfoDialog ) {
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bs.statusInfoDialog.close();
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}
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bs.openImage( this, title );
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return false;
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} );
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$configLink.click( function () {
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if ( bs.statusInfoDialog ) {
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bs.statusInfoDialog.close();
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}
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bs.openImage( this, title ).then( function () {
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$( document ).trigger( 'mmv-options-open' );
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} );
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return false;
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} );
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if ( this.config.shouldShowStatusInfo() ) {
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this.config.disableStatusInfo();
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this.showStatusInfo();
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}
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};
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/**
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* Shows a popup notifying the user
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*/
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MMVB.showStatusInfo = function () {
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var bs = this;
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mw.loader.using( 'mmv.ui.tipsyDialog' ).done( function () {
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/** @property {mw.mmv.ui.TipsyDialog} statusInfoDialog popup on the file page explaining how to re-enable */
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bs.statusInfoDialog = new mw.mmv.ui.TipsyDialog( $( '.mw-mmv-view-expanded' ), { gravity: 'sw' } );
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bs.statusInfoDialog.setContent(
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mw.message( 'multimediaviewer-disable-info-title' ).plain(),
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mw.message( 'multimediaviewer-disable-info' ).escaped()
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);
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// tipsy mispositions the tooltip, probably because it does the positioning before the buttons are
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// displayed and the page is reflown. Adding some delay seems to help.
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window.setTimeout( function () {
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bs.statusInfoDialog.open();
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}, 1000 );
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} );
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};
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/**
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* Finds the caption for an image.
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*
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* @param {jQuery} $thumbContain The container for the thumbnail.
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* @param {jQuery} $link The link that encompasses the thumbnail.
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* @return {string|undefined} Unsafe HTML may be present - caution
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*/
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MMVB.findCaption = function ( $thumbContain, $link ) {
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var $thumbCaption, $potentialCaptions;
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if ( !$thumbContain.length ) {
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return $link.prop( 'title' ) || undefined;
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}
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$potentialCaptions = $thumbContain.find( '.thumbcaption, figcaption' );
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if ( $potentialCaptions.length < 2 ) {
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$thumbCaption = $potentialCaptions.eq( 0 );
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} else {
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// Template:Multiple_image or some such; try to find closest caption to the image
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$thumbCaption = $link.closest( ':has(> .thumbcaption)', $thumbContain )
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.find( '> .thumbcaption' );
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}
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if ( !$thumbCaption.length ) { // gallery, maybe
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$thumbCaption = $thumbContain
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.closest( '.gallerybox' )
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.not( function () {
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// do not treat categories as galleries - the autogenerated caption they have is not helpful
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return $thumbContain.closest( '#mw-category-media' ).length;
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} )
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.not( function () {
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// do not treat special file related pages as galleries
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var $specialFileRelatedPages = $(
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'.page-Special_NewFiles, ' +
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'.page-Special_MostLinkedFiles,' +
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'.page-Special_MostGloballyLinkedFiles, ' +
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'.page-Special_UncategorizedFiles, ' +
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'.page-Special_UnusedFiles'
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);
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return $thumbContain.closest( $specialFileRelatedPages ).length;
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} )
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.find( '.gallerytext' );
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}
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if ( $thumbCaption.find( '.magnify' ).length ) {
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$thumbCaption = $thumbCaption.clone();
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$thumbCaption.find( '.magnify' ).remove();
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}
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return this.htmlUtils.htmlToTextWithTags( $thumbCaption.html() || '' );
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};
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/**
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* Opens MediaViewer and loads the given thumbnail. Requires processThumb() to be called first.
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*
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* @param {HTMLElement} element Clicked element
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* @param {string} title File title
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* @return {jQuery.Promise}
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*/
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MMVB.openImage = function ( element, title ) {
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var $element = $( element );
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mw.mmv.durationLogger.start( [ 'click-to-first-image', 'click-to-first-metadata' ] );
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if ( $element.is( 'a.image, [typeof*="mw:Image"] > a' ) ) {
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mw.mmv.actionLogger.log( 'thumbnail' );
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} else if ( $element.is( '.magnify a' ) ) {
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mw.mmv.actionLogger.log( 'enlarge' );
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}
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this.ensureEventHandlersAreSetUp();
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return this.loadViewer( true ).then( function ( viewer ) {
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viewer.loadImageByTitle( title, true );
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} );
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};
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/**
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* Handles a click event on a link
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*
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* @param {HTMLElement} element Clicked element
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* @param {jQuery.Event} e jQuery event object
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* @param {string} title File title
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* @return {boolean} a value suitable for an event handler (ie. true if the click should be handled
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* by the browser).
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*/
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MMVB.click = function ( element, e, title ) {
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// Do not interfere with non-left clicks or if modifier keys are pressed.
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if ( ( e.button !== 0 && e.which !== 1 ) || e.altKey || e.ctrlKey || e.shiftKey || e.metaKey ) {
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return true;
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}
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// Don't load if someone has specifically stopped us from doing so
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if ( !this.config.isMediaViewerEnabledOnClick() ) {
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return true;
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}
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// Don't load if we already tried loading and it failed
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if ( this.viewerIsBroken ) {
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return true;
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}
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this.openImage( element, title );
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// calling this late so that in case of errors users at least get to the file page
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e.preventDefault();
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return false;
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};
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/**
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* Returns true if the hash part of the current URL is one that's owned by MMV.
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*
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* @return {boolean}
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* @private
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*/
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MMVB.isViewerHash = function () {
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return window.location.hash.indexOf( '#mediaviewer/' ) === 0 ||
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window.location.hash.indexOf( '#/media/' ) === 0;
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};
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/**
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* Handles the browser location hash on pageload or hash change
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*
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* @param {boolean} initialHash Whether this is called for the hash that came with the pageload
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*/
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MMVB.hash = function ( initialHash ) {
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var bootstrap = this;
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// There is no point loading the mmv if it isn't loaded yet for hash changes unrelated to the mmv
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// Such as anchor links on the page
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if ( !this.viewerInitialized && !this.isViewerHash() ) {
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return;
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}
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if ( this.skipNextHashHandling ) {
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this.skipNextHashHandling = false;
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return;
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}
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this.loadViewer( this.isViewerHash() ).then( function ( viewer ) {
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viewer.hash();
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// this is an ugly temporary fix to avoid a black screen of death when
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// the page is loaded with an invalid MMV url
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if ( !viewer.isOpen ) {
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bootstrap.cleanupOverlay();
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} else if ( initialHash ) {
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mw.mmv.actionLogger.log( 'hash-load' );
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} else {
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mw.mmv.actionLogger.log( 'history-navigation' );
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}
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} );
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};
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/**
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* Handles hash change requests coming from mmv
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*
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* @param {jQuery.Event} e Custom mmv-hash event
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*/
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MMVB.internalHashChange = function ( e ) {
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var hash = e.hash,
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title = e.title;
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// The advantage of using pushState when it's available is that it has to ability to truly
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// clear the hash, not leaving "#" in the history
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// An entry with "#" in the history has the side-effect of resetting the scroll position when navigating the history
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if ( this.browserHistory && this.browserHistory.pushState ) {
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// In order to truly clear the hash, we need to reconstruct the hash-free URL
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if ( hash === '#' ) {
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|
hash = window.location.href.replace( /#.*$/, '' );
|
|
}
|
|
|
|
window.history.pushState( null, title, hash );
|
|
} else {
|
|
// Since we voluntarily changed the hash, we don't want MMVB.hash (which will trigger on hashchange event) to treat it
|
|
this.skipNextHashHandling = true;
|
|
|
|
window.location.hash = hash;
|
|
}
|
|
|
|
document.title = title;
|
|
};
|
|
|
|
/**
|
|
* Instantiates a new viewer if necessary
|
|
*
|
|
* @return {mw.mmv.MultimediaViewer}
|
|
*/
|
|
MMVB.getViewer = function () {
|
|
if ( this.viewer === undefined ) {
|
|
this.viewer = new mw.mmv.MultimediaViewer( this.config );
|
|
this.viewer.setupEventHandlers();
|
|
mw.mmv.viewer = this.viewer;
|
|
}
|
|
|
|
return this.viewer;
|
|
};
|
|
|
|
/**
|
|
* Listens to events on the window/document
|
|
*/
|
|
MMVB.setupEventHandlers = function () {
|
|
var self = this;
|
|
|
|
/** @property {boolean} eventHandlersHaveBeenSetUp tracks domready event handler state */
|
|
this.eventHandlersHaveBeenSetUp = true;
|
|
|
|
$( window ).on( this.browserHistory && this.browserHistory.pushState ? 'popstate.mmvb' : 'hashchange', function () {
|
|
self.hash();
|
|
} );
|
|
|
|
// Interpret any hash that might already be in the url
|
|
self.hash( true );
|
|
|
|
$( document ).on( 'mmv-hash', function ( e ) {
|
|
self.internalHashChange( e );
|
|
} ).on( 'mmv-cleanup-overlay', function () {
|
|
self.cleanupOverlay();
|
|
} );
|
|
};
|
|
|
|
/**
|
|
* Cleans up event handlers, used for tests
|
|
*/
|
|
MMVB.cleanupEventHandlers = function () {
|
|
$( window ).off( 'hashchange popstate.mmvb' );
|
|
$( document ).off( 'mmv-hash' );
|
|
this.eventHandlersHaveBeenSetUp = false;
|
|
};
|
|
|
|
/**
|
|
* Makes sure event handlers are set up properly via MultimediaViewerBootstrap.setupEventHandlers().
|
|
* Called before loading the main mmv module. At this point, event handers for MultimediaViewerBootstrap
|
|
* should have been set up, but due to bug 70756 it cannot be guaranteed.
|
|
*/
|
|
MMVB.ensureEventHandlersAreSetUp = function () {
|
|
if ( !this.eventHandlersHaveBeenSetUp ) {
|
|
this.setupEventHandlers();
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Sets up the overlay while the viewer loads
|
|
*/
|
|
MMVB.setupOverlay = function () {
|
|
var $scrollTo = $.scrollTo(),
|
|
$body = $( document.body );
|
|
|
|
// There are situations where we can call setupOverlay while the overlay is already there,
|
|
// such as inside this.hash(). In that case, do nothing
|
|
if ( $body.hasClass( 'mw-mmv-lightbox-open' ) ) {
|
|
return;
|
|
}
|
|
|
|
if ( !this.$overlay ) {
|
|
this.$overlay = $( '<div>' )
|
|
.addClass( 'mw-mmv-overlay' );
|
|
}
|
|
|
|
this.savedScroll = { top: $scrollTo.scrollTop(), left: $scrollTo.scrollLeft() };
|
|
|
|
$body.addClass( 'mw-mmv-lightbox-open' )
|
|
.append( this.$overlay );
|
|
};
|
|
|
|
/**
|
|
* Cleans up the overlay
|
|
*/
|
|
MMVB.cleanupOverlay = function () {
|
|
var bootstrap = this;
|
|
|
|
$( document.body ).removeClass( 'mw-mmv-lightbox-open' );
|
|
|
|
if ( this.$overlay ) {
|
|
this.$overlay.remove();
|
|
}
|
|
|
|
if ( this.savedScroll ) {
|
|
// setTimeout because otherwise Chrome will scroll back to top after the popstate event handlers run
|
|
setTimeout( function () {
|
|
$.scrollTo( bootstrap.savedScroll, 0 ); bootstrap.savedScroll = undefined;
|
|
}, 0 );
|
|
}
|
|
};
|
|
|
|
MMVB.whenThumbsReady = function () {
|
|
return this.thumbsReadyDeferred.promise();
|
|
};
|
|
|
|
mw.mmv.MultimediaViewerBootstrap = MultimediaViewerBootstrap;
|
|
}( mediaWiki, jQuery ) );
|