mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-09-28 20:56:44 +00:00
a7e8c9d660
The presence check used to be against the VE global, but we recently made that impossible without providing an alternative. Though by accident, mw.libs.ve has become the new way to check for presence. Change-Id: If85695525777a71dde467675052d2ede4e52c9b7
339 lines
11 KiB
JavaScript
339 lines
11 KiB
JavaScript
/*!
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* VisualEditor MediaWiki ViewPageTarget init.
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*
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* This file must remain as widely compatible as the base compatibility
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* for MediaWiki itself (see mediawiki/core:/resources/startup.js).
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* Avoid use of: ES5, SVG, HTML5 DOM, ContentEditable etc.
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*
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* @copyright 2011-2013 VisualEditor Team and others; see AUTHORS.txt
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* @license The MIT License (MIT); see LICENSE.txt
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*/
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/*global mw */
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/**
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* Platform preparation for the MediaWiki view page. This loads (when user needs it) the
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* actual MediaWiki integration and VisualEditor library.
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*
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* @class ve.init.mw.ViewPageTarget.init
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* @singleton
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*/
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( function () {
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var conf, uri, pageExists, viewUri, veEditUri, isViewPage,
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init, isBlacklisted, getTargetDeferred;
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/**
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* Use deferreds to avoid loading and instantiating Target multiple times.
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* @return {jQuery.Promise}
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*/
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function getTarget() {
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var loadTargetDeferred;
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if ( !getTargetDeferred ) {
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getTargetDeferred = $.Deferred();
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loadTargetDeferred = $.Deferred()
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.done( function () {
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var target = new ve.init.mw.ViewPageTarget();
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ve.init.mw.targets.push( target );
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// Transfer methods
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ve.init.mw.ViewPageTarget.prototype.setupSectionEditLinks = init.setupSectionEditLinks;
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getTargetDeferred.resolve( target );
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} )
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.fail( getTargetDeferred.reject );
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mw.loader.using( 'ext.visualEditor.viewPageTarget', loadTargetDeferred.resolve, loadTargetDeferred.reject );
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}
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return getTargetDeferred.promise();
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}
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conf = mw.config.get( 'wgVisualEditorConfig' );
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uri = new mw.Uri();
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pageExists = !!mw.config.get( 'wgArticleId' );
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viewUri = new mw.Uri( mw.util.wikiGetlink( mw.config.get( 'wgRelevantPageName' ) ) );
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veEditUri = viewUri.clone().extend( { 'veaction': 'edit' } );
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isViewPage = (
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mw.config.get( 'wgAction' ) === 'view' &&
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!( 'diff' in uri.query )
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);
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init = {
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support: {
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es5: (
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// It would be much easier to do a quick inline function that asserts "use strict"
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// works, but since IE9 doesn't support strict mode (and we don't use strict mode) we
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// have to instead list all the ES5 features we do use.
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Array.isArray &&
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Array.prototype.filter &&
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Array.prototype.indexOf &&
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Array.prototype.map &&
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Date.prototype.toJSON &&
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Function.prototype.bind &&
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Object.create &&
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Object.keys &&
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String.prototype.trim &&
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window.JSON &&
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JSON.parse &&
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JSON.stringify
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),
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contentEditable: 'contentEditable' in document.createElement( 'div' )
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},
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blacklist: {
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// IE <= 8 has various incompatibilities in layout and feature support
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// IE9 and IE10 generally work but fail in ajax handling when making POST
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// requests to the VisualEditor/Parsoid API which is causing silent failures
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// when trying to save a page (bug 49187)
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'msie': [['<=', 10]],
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// Android 2.x and below "support" CE but don't trigger keyboard input
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'android': [['<', 3]],
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// Firefox issues in versions 12 and below (bug 50780)
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// Wikilink [[./]] bug in Firefox 14 and below (bug 50720)
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'firefox': [['<=', 14]],
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// Blacklist all versions:
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'opera': null,
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'blackberry': null
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},
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skinSetup: function () {
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init.setupTabLayout();
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init.setupSectionEditLinks();
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},
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setupTabLayout: function () {
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var caVeEdit, caVeEditSource,
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action = pageExists ? 'edit' : 'create',
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pTabsId = $( '#p-views' ).length ? 'p-views' : 'p-cactions',
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$caSource = $( '#ca-viewsource' ),
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$caEdit = $( '#ca-edit' ),
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$caEditLink = $caEdit.find( 'a' ),
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reverseTabOrder = $( 'body' ).hasClass( 'rtl' ) && pTabsId === 'p-views',
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caVeEditNextnode = reverseTabOrder ? $caEdit.get( 0 ) : $caEdit.next().get( 0 );
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if ( !$caEdit.length || $caSource.length ) {
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// If there is no edit tab or a view-source tab,
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// the user doesn't have permission to edit.
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return;
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}
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// Add independent "VisualEditor" tab (#ca-ve-edit).
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if ( conf.tabLayout === 'add' ) {
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caVeEdit = mw.util.addPortletLink(
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pTabsId,
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// Use url instead of '#'.
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// So that 1) one can always open it in a new tab, even when
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// onEditTabClick is bound.
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// 2) when onEditTabClick is not bound (!isViewPage) it will
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// just work.
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veEditUri,
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// visualeditor-ca-ve-create
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// visualeditor-ca-ve-edit
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mw.msg( 'visualeditor-ca-ve-' + action ),
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'ca-ve-edit',
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mw.msg( 'tooltip-ca-ve-edit' ),
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mw.msg( 'accesskey-ca-ve-edit' ),
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caVeEditNextnode
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);
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// Replace "Edit" tab with a veEditUri version, add "Edit source" tab.
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} else {
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// Create "Edit source" link.
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// Re-create instead of convert ca-edit since we don't want to copy over accesskey etc.
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caVeEditSource = mw.util.addPortletLink(
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pTabsId,
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// Use original href to preserve oldid etc. (bug 38125)
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$caEditLink.attr( 'href' ),
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// visualeditor-ca-createsource
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// visualeditor-ca-editsource
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mw.msg( 'visualeditor-ca-' + action + 'source' ),
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'ca-editsource',
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// tooltip-ca-editsource
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// tooltip-ca-createsource
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mw.msg( 'tooltip-ca-' + action + 'source' ),
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mw.msg( 'accesskey-ca-editsource' ),
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caVeEditNextnode
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);
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// Copy over classes (e.g. 'selected')
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$( caVeEditSource ).addClass( $caEdit.attr( 'class' ) );
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// Create "Edit" tab.
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$caEdit.remove();
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caVeEdit = mw.util.addPortletLink(
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pTabsId,
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// Use url instead of '#'.
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// So that 1) one can always open it in a new tab, even when
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// onEditTabClick is bound.
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// 2) when onEditTabClick is not bound (!isViewPage) it will
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// just work.
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veEditUri,
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$caEditLink.text(),
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$caEdit.attr( 'id' ),
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$caEditLink.attr( 'title' ),
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mw.msg( 'accesskey-ca-ve-edit' ),
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reverseTabOrder ? caVeEditSource.nextSibling : caVeEditSource
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);
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}
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if ( isViewPage ) {
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// Allow instant switching to edit mode, without refresh
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$( caVeEdit ).click( init.onEditTabClick );
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}
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},
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setupSectionEditLinks: function () {
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var $editsections = $( '#mw-content-text .mw-editsection' );
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// match direction to the user interface
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$editsections.css( 'direction', $( 'body' ).css( 'direction' ) );
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// The "visibility" css construct ensures we always occupy the same space in the layout.
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// This prevents the heading from changing its wrap when the user toggles editSourceLink.
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$editsections.each( function () {
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var $closingBracket, $expandedOnly, $hiddenBracket, $outerClosingBracket,
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expandTimeout, shrinkTimeout,
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$editsection = $( this ),
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$heading = $editsection.closest( 'h1, h2, h3, h4, h5, h6' ),
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$editLink = $editsection.find( 'a' ).eq( 0 ),
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$editSourceLink = $editLink.clone(),
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$links = $editLink.add( $editSourceLink ),
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$divider = $( '<span>' ),
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dividerText = $.trim( mw.msg( 'pipe-separator' ) ),
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$brackets = $( [ this.firstChild, this.lastChild ] );
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function expandSoon() {
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// Cancel pending shrink, schedule expansion instead
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clearTimeout( shrinkTimeout );
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expandTimeout = setTimeout( expand, 100 );
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}
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function expand() {
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clearTimeout( shrinkTimeout );
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$closingBracket.css( 'visibility', 'hidden' );
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$expandedOnly.css( 'visibility', 'visible' );
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$heading.addClass( 'mw-editsection-expanded' );
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}
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function shrinkSoon() {
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// Cancel pending expansion, schedule shrink instead
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clearTimeout( expandTimeout );
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shrinkTimeout = setTimeout( shrink, 100 );
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}
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function shrink() {
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clearTimeout( expandTimeout );
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if ( !$links.is( ':focus' ) ) {
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$closingBracket.css( 'visibility', 'visible' );
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$expandedOnly.css( 'visibility', 'hidden' );
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$heading.removeClass( 'mw-editsection-expanded' );
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}
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}
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// TODO: Remove this (see Id27555c6 in mediawiki/core)
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if ( !$brackets.hasClass( 'mw-editsection-bracket' ) ) {
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$brackets = $brackets
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.wrap( $( '<span>' ).addClass( 'mw-editsection-bracket' ) )
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.parent();
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}
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$closingBracket = $brackets.last();
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$outerClosingBracket = $closingBracket.clone();
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$expandedOnly = $divider.add( $editSourceLink ).add( $outerClosingBracket )
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.css( 'visibility', 'hidden' );
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// The hidden bracket after the devider ensures we have balanced space before and after
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// divider. The space before the devider is provided by the original closing bracket.
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$hiddenBracket = $closingBracket.clone().css( 'visibility', 'hidden' );
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// Events
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$heading.on( { 'mouseenter': expandSoon, 'mouseleave': shrinkSoon } );
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$links.on( { 'focus': expand, 'blur': shrinkSoon } );
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if ( isViewPage ) {
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// Only init without refresh if we're on a view page. Though section edit links
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// are rarely shown on non-view pages, they appear in one other case, namely
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// when on a diff against the latest version of a page. In that case we mustn't
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// init without refresh as that'd initialise for the wrong rev id (bug 50925)
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// and would preserve the wrong DOM with a diff on top.
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$editLink.click( init.onEditSectionLinkClick );
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}
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// Initialization
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$editSourceLink
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.addClass( 'mw-editsection-link-secondary' )
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.text( mw.msg( 'visualeditor-ca-editsource-section' ) );
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$divider
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.addClass( 'mw-editsection-divider' )
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.text( dividerText );
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$editLink
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.attr( 'href', function ( i, val ) {
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return new mw.Uri( veEditUri ).extend( {
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'vesection': new mw.Uri( val ).query.section
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} );
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} )
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.addClass( 'mw-editsection-link-primary' );
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$closingBracket
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.after( $divider, $hiddenBracket, $editSourceLink, $outerClosingBracket );
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} );
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},
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onEditTabClick: function ( e ) {
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// Default mouse button is normalised by jQuery to key code 1.
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// Only do our handling if no keys are pressed, mouse button is 1
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// (e.g. not middle click or right click) and no modifier keys
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// (e.g. cmd-click to open in new tab).
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if ( ( e.which && e.which !== 1 ) || e.shiftKey || e.altKey || e.ctrlKey || e.metaKey ) {
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return;
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}
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e.preventDefault();
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getTarget().done( function ( target ) {
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target.logEvent( 'Edit', { action: 'edit-link-click' } );
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target.activate();
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} );
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},
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onEditSectionLinkClick: function ( e ) {
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if ( ( e.which && e.which !== 1 ) || e.shiftKey || e.altKey || e.ctrlKey || e.metaKey ) {
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return;
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}
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e.preventDefault();
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getTarget().done( function ( target ) {
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target.logEvent( 'Edit', { action: 'section-edit-link-click' } );
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target.saveEditSection( $( e.target ).closest( 'h1, h2, h3, h4, h5, h6' ).get( 0 ) );
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target.activate();
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} );
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}
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};
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// Note: Though VisualEditor itself only needs this exposure for a very small reason
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// (namely to access init.blacklist from the unit tests...) this has become one of the nicest
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// ways to easily detect whether VisualEditor is present on this page. The VE global was once
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// available always, but now that platform integration initialisation is propertly separated,
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// it doesn't exist until the platform loads VisualEditor core. Though mw.libs.ve shouldn't be
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// considered an API (the methods are subject to change and considered private), the presence
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// of this property should be reliable.
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mw.libs.ve = init;
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isBlacklisted = !( 'vewhitelist' in uri.query ) && $.client.test( init.blacklist, null, true );
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if ( !init.support.es5 || !init.support.contentEditable || isBlacklisted ) {
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mw.log( 'Browser does not support VisualEditor' );
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return;
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}
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$( function () {
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if ( isViewPage ) {
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if ( uri.query.veaction === 'edit' ) {
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getTarget().done( function ( target ) {
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target.activate();
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} );
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}
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}
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init.skinSetup();
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} );
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}() );
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