mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/DiscussionTools
synced 2024-11-24 16:34:21 +00:00
426 lines
13 KiB
JavaScript
426 lines
13 KiB
JavaScript
'use strict';
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var
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parser = require( './parser.js' ),
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modifier = require( './modifier.js' ),
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logger = require( './logger.js' ),
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pageDataCache = {},
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$pageContainer,
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scrollPadding = { top: 10, bottom: 10 },
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config = require( './controller/config.json' ),
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replyWidgetPromise = config.useVisualEditor ?
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mw.loader.using( 'ext.discussionTools.ReplyWidgetVisual' ) :
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mw.loader.using( 'ext.discussionTools.ReplyWidgetPlain' );
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mw.messages.set( require( './controller/contLangMessages.json' ) );
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function setupComment( comment ) {
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var $replyLinkButtons, $replyLink, parsoidPromise, widgetPromise, newListItem;
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// Is it possible to have a heading nested in a thread?
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if ( comment.type !== 'comment' ) {
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return;
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}
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$replyLinkButtons = $( '<span>' )
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.addClass( 'dt-init-replylink-buttons' );
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// Reply
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$replyLink = $( '<a>' )
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.addClass( 'dt-init-replylink-reply' )
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.text( mw.msg( 'discussiontools-replylink' ) )
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.on( 'click', function () {
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// TODO: Allow users to use multiple reply widgets simultaneously.
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// Currently submitting a reply from one widget would also destroy the other ones.
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// eslint-disable-next-line no-jquery/no-class-state
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if ( $pageContainer.hasClass( 'dt-init-replylink-open' ) ) {
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// Support: IE 11
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// On other browsers, the link is made unclickable using 'pointer-events' in CSS
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return;
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}
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$pageContainer.addClass( 'dt-init-replylink-open' );
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logger( {
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action: 'init',
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type: 'page',
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mechanism: 'click',
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// TODO: when we have actual visual mode, this needs to do better at
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// working out which will be used:
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// eslint-disable-next-line camelcase
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editor_interface: config.useVisualEditor ? 'wikitext-2017' : 'wikitext'
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} );
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$replyLinkButtons.addClass( 'dt-init-replylink-active' );
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if ( !widgetPromise ) {
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// eslint-disable-next-line no-use-before-define
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parsoidPromise = getParsoidCommentData( comment.id );
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widgetPromise = parsoidPromise.then( function () {
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return replyWidgetPromise.then( function () {
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var
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ReplyWidget = config.useVisualEditor ?
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require( 'ext.discussionTools.ReplyWidgetVisual' ) :
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require( 'ext.discussionTools.ReplyWidgetPlain' ),
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replyWidget = new ReplyWidget(
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comment
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);
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replyWidget.on( 'teardown', function () {
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$replyLinkButtons.removeClass( 'dt-init-replylink-active' );
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$pageContainer.removeClass( 'dt-init-replylink-open' );
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modifier.removeListItem( newListItem );
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newListItem = null;
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} );
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return replyWidget;
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} );
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}, function ( code, data ) {
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$replyLinkButtons.removeClass( 'dt-init-replylink-active' );
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$pageContainer.removeClass( 'dt-init-replylink-open' );
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OO.ui.alert(
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( new mw.Api() ).getErrorMessage( data ),
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{ size: 'medium' }
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);
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logger( {
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action: 'abort',
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type: 'preinit'
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} );
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widgetPromise = null;
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} );
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// On first load, add a placeholder list item
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newListItem = modifier.addListItem( comment );
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$( newListItem ).text( mw.msg( 'discussiontools-replywidget-loading' ) );
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}
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widgetPromise.then( function ( replyWidget ) {
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if ( !newListItem ) {
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// On subsequent loads, there's no list item yet, so create one now
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newListItem = modifier.addListItem( comment );
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}
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$( newListItem ).empty().append( replyWidget.$element );
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replyWidget.setup();
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replyWidget.scrollElementIntoView( { padding: scrollPadding } );
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replyWidget.focus();
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logger( { action: 'ready' } );
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logger( { action: 'loaded' } );
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} );
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} );
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$replyLinkButtons.append( $replyLink );
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modifier.addReplyLink( comment, $replyLinkButtons[ 0 ] );
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}
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function traverseNode( parent ) {
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parent.replies.forEach( function ( comment ) {
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setupComment( comment );
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traverseNode( comment );
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} );
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}
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function autoSignWikitext( wikitext ) {
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wikitext = wikitext.trim();
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if ( wikitext.slice( -4 ) !== '~~~~' ) {
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wikitext += ' ~~~~';
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}
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return wikitext;
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}
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function postReply( widget, parsoidData ) {
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var wikitext, doc, container, newParsoidItem,
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comment = parsoidData.comment;
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doc = comment.range.endContainer.ownerDocument;
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container = doc.createElement( 'div' );
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if ( widget.getMode() === 'source' ) {
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// Convert wikitext to comment DOM
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wikitext = widget.getValue();
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// Use autoSign to avoid double signing
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wikitext = autoSignWikitext( wikitext );
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wikitext.split( '\n' ).forEach( function ( line ) {
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var p = doc.createElement( 'p' );
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p.appendChild( modifier.createWikitextNode( line ) );
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container.appendChild( p );
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} );
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} else {
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container.innerHTML = widget.getValue();
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// If the last node isn't a paragraph (e.g. it's a list), then
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// add another paragraph to contain the signature.
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if ( container.lastChild.nodeName.toLowerCase() !== 'p' ) {
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container.appendChild( doc.createElement( 'p' ) );
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}
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// Sign the last line
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// TODO: Check if the user tried to sign in visual mode by typing wikitext?
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// TODO: When we implement posting new topics, the leading space will create an indent-pre
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container.lastChild.appendChild( modifier.createWikitextNode( ' ~~~~' ) );
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}
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// Transfer comment DOM to Parsoid DOM
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// Wrap every root node of the document in a new list item (dd/li).
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// In wikitext mode every root node is a paragraph.
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// In visual mode the editor takes care of preventing problematic nodes
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// like <table> or <h2> from ever occuring in the comment.
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while ( container.children.length ) {
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if ( !newParsoidItem ) {
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newParsoidItem = modifier.addListItem( comment );
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} else {
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newParsoidItem = modifier.addSiblingListItem( newParsoidItem );
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}
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newParsoidItem.appendChild( container.firstChild );
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}
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return $.Deferred().resolve().promise();
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}
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function save( widget, parsoidData ) {
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var root, summaryPrefix, summary, promise,
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mode = widget.getMode(),
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comment = parsoidData.comment,
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pageData = parsoidData.pageData;
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promise = postReply( widget, parsoidData );
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root = comment;
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while ( root && root.type !== 'heading' ) {
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root = root.parent;
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}
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if ( root.placeholderHeading ) {
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// This comment is in 0th section, there's no section title for the edit summary
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summaryPrefix = '';
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} else {
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summaryPrefix = '/* ' + root.range.startContainer.innerText + ' */ ';
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}
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summary = summaryPrefix + mw.msg( 'discussiontools-defaultsummary-reply' );
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return promise.then( function () {
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return mw.libs.ve.targetSaver.saveDoc(
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parsoidData.doc,
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{
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page: pageData.pageName,
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oldid: pageData.oldId,
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summary: summary,
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basetimestamp: pageData.baseTimeStamp,
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starttimestamp: pageData.startTimeStamp,
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etag: pageData.etag,
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assert: mw.user.isAnon() ? 'anon' : 'user',
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assertuser: mw.user.getName() || undefined,
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dttags: [
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'discussiontools',
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'discussiontools-reply',
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'discussiontools-' + mode
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].join( ',' )
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}
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);
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} ).catch( function ( code, data ) {
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// Handle edit conflicts. Load the latest revision of the page, then try again. If the parent
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// comment has been deleted from the page, or if retry also fails for some other reason, the
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// error is handled as normal below.
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if ( code === 'editconflict' ) {
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return widget.api.get( {
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action: 'query',
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prop: 'revisions',
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rvprop: 'ids',
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rvlimit: 1,
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titles: mw.config.get( 'wgRelevantPageName' ),
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formatversion: 2
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} ).then( function ( resp ) {
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var latestRevId = resp.query.pages[ 0 ].revisions[ 0 ].revid;
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mw.config.set( {
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wgCurRevisionId: latestRevId,
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wgRevisionId: latestRevId
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} );
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// eslint-disable-next-line no-use-before-define
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return getParsoidCommentData( comment.id ).then( function ( parsoidData ) {
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return save( widget, parsoidData );
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} );
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} );
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}
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return $.Deferred().reject( code, data ).promise();
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} );
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}
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function highlight( comment ) {
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var padding = 5,
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// $container must be position:relative/absolute
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$container = OO.ui.getDefaultOverlay(),
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containerRect = $container[ 0 ].getBoundingClientRect(),
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nativeRange, rect,
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$highlight = $( '<div>' ).addClass( 'dt-init-highlight' );
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nativeRange = document.createRange();
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nativeRange.setStart( comment.range.startContainer, comment.range.startOffset );
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nativeRange.setEnd( comment.range.endContainer, comment.range.endOffset );
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rect = RangeFix.getBoundingClientRect( nativeRange );
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$highlight.css( {
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top: rect.top - containerRect.top - padding,
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left: rect.left - containerRect.left - padding,
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width: rect.width + ( padding * 2 ),
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height: rect.height + ( padding * 2 )
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} );
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setTimeout( function () {
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$highlight.addClass( 'dt-init-highlight-fade' );
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setTimeout( function () {
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$highlight.remove();
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}, 500 );
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}, 500 );
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$container.prepend( $highlight );
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}
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function commentsById( comments ) {
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var byId = {};
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comments.forEach( function ( comment ) {
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byId[ comment.id ] = comment;
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} );
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return byId;
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}
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/**
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* Get the Parsoid document HTML and metadata needed to edit this page from the API.
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*
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* This method caches responses. If you call it again with the same parameters, you'll get the exact
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* same Promise object, and no API request will be made.
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*
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* @param {string} pageName Page title
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* @param {number} oldId Revision ID
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* @return {jQuery.Promise}
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*/
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function getPageData( pageName, oldId ) {
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pageDataCache[ pageName ] = pageDataCache[ pageName ] || {};
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if ( pageDataCache[ pageName ][ oldId ] ) {
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return pageDataCache[ pageName ][ oldId ];
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}
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pageDataCache[ pageName ][ oldId ] = mw.loader.using( 'ext.visualEditor.targetLoader' ).then( function () {
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return mw.libs.ve.targetLoader.requestPageData(
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'visual', pageName, { oldId: oldId }
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);
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}, function () {
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// Clear on failure
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pageDataCache[ pageName ][ oldId ] = null;
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} );
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return pageDataCache[ pageName ][ oldId ];
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}
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/**
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* Get the Parsoid document DOM, parse comments and threads, and find a specific comment in it.
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*
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* @param {string} commentId Comment ID, from a comment parsed in the local document
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* @return {jQuery.Promise}
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*/
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function getParsoidCommentData( commentId ) {
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var parsoidPageData, parsoidDoc, parsoidComments, parsoidCommentsById,
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pageName = mw.config.get( 'wgRelevantPageName' ),
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oldId = mw.config.get( 'wgCurRevisionId' );
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return getPageData( pageName, oldId )
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.then( function ( response ) {
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var data, comment, transcludedFrom, transcludedErrMsg, mwTitle;
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data = response.visualeditor;
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parsoidDoc = ve.parseXhtml( data.content );
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// Mirror VE's ve.init.mw.Target.prototype.fixBase behavior:
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ve.fixBase( parsoidDoc, document, ve.resolveUrl(
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// Don't replace $1 with the page name, because that'll break if
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// the page name contains a slash
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mw.config.get( 'wgArticlePath' ).replace( '$1', '' ),
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document
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) );
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parsoidComments = parser.getComments( parsoidDoc.body );
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parsoidPageData = {
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pageName: pageName,
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oldId: oldId,
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baseTimeStamp: data.basetimestamp,
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startTimeStamp: data.starttimestamp,
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etag: data.etag
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};
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// getThreads builds the tree structure, currently only
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// used to set 'replies' and 'id'
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parser.groupThreads( parsoidComments );
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parsoidCommentsById = commentsById( parsoidComments );
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comment = parsoidCommentsById[ commentId ];
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if ( !comment ) {
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return $.Deferred().reject( 'comment-disappeared', { errors: [ {
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code: 'comment-disappeared',
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html: mw.message( 'discussiontools-error-comment-disappeared' ).parse()
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} ] } ).promise();
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}
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transcludedFrom = parser.getTranscludedFrom( comment );
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if ( transcludedFrom ) {
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mwTitle = transcludedFrom === true ? null : mw.Title.newFromText( transcludedFrom );
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// If this refers to a template rather than a subpage, we never want to edit it
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if ( mwTitle && mwTitle.getNamespaceId() !== mw.config.get( 'wgNamespaceIds' ).template ) {
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// TODO: Post the reply to the target page instead
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transcludedErrMsg = mw.message( 'discussiontools-error-comment-is-transcluded-title',
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mwTitle.getPrefixedText() ).parse();
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} else {
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transcludedErrMsg = mw.message( 'discussiontools-error-comment-is-transcluded' ).parse();
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}
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return $.Deferred().reject( 'comment-is-transcluded', { errors: [ {
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code: 'comment-is-transcluded',
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html: transcludedErrMsg
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} ] } ).promise();
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}
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return {
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comment: parsoidCommentsById[ commentId ],
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doc: parsoidDoc,
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pageData: parsoidPageData
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};
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} );
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}
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function init( $container, state ) {
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var
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pageComments, pageThreads, pageCommentsById,
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repliedToComment;
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state = state || {};
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$pageContainer = $container;
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pageComments = parser.getComments( $pageContainer[ 0 ] );
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pageThreads = parser.groupThreads( pageComments );
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pageCommentsById = commentsById( pageComments );
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pageThreads.forEach( traverseNode );
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$pageContainer.addClass( 'dt-init-done' );
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$pageContainer.removeClass( 'dt-init-replylink-open' );
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// For debugging
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mw.dt.pageThreads = pageThreads;
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if ( state.repliedTo ) {
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// Find the comment we replied to, then highlight the last reply
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repliedToComment = pageCommentsById[ state.repliedTo ];
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highlight( repliedToComment.replies[ repliedToComment.replies.length - 1 ] );
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}
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// Preload the Parsoid document.
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// TODO: Isn't this too early to load it? We will only need it if the user tries replying...
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getPageData(
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mw.config.get( 'wgRelevantPageName' ),
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mw.config.get( 'wgCurRevisionId' )
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);
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}
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module.exports = {
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init: init,
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getParsoidCommentData: getParsoidCommentData,
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save: save,
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autoSignWikitext: autoSignWikitext
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};
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