--- /dev/null
+/*!
+ * Live edit preview.
+ */
+( function ( mw, $ ) {
+
+ /**
+ * @ignore
+ * @param {jQuery.Event} e
+ */
+ function doLivePreview( e ) {
+ var isDiff, api, parseRequest, diffRequest, postData, copySelectors, section, summary,
+ $wikiPreview, $wikiDiff, $editform, $textbox, $copyElements, $spinner, $errorBox;
+
+ isDiff = ( e.target.name === 'wpDiff' );
+ $wikiPreview = $( '#wikiPreview' );
+ $wikiDiff = $( '#wikiDiff' );
+ $editform = $( '#editform' );
+ $textbox = $editform.find( '#wpTextbox1' );
+
+ summary = OO.ui.infuse( $( '#wpSummaryWidget' ) );
+
+ $spinner = $( '.mw-spinner-preview' );
+ $errorBox = $( '.errorbox' );
+ section = $editform.find( '[name="wpSection"]' ).val();
+
+ if ( $textbox.length === 0 ) {
+ return;
+ }
+ // Show changes for a new section is not yet supported
+ if ( isDiff && section === 'new' ) {
+ return;
+ }
+ e.preventDefault();
+
+ // Remove any previously displayed errors
+ $errorBox.remove();
+ // Show #wikiPreview if it's hidden to be able to scroll to it
+ // (if it is hidden, it's also empty, so nothing changes in the rendering)
+ $wikiPreview.show();
+
+ // Jump to where the preview will appear
+ $wikiPreview[ 0 ].scrollIntoView();
+
+ copySelectors = [
+ // Main
+ '.mw-indicators',
+ '#firstHeading',
+ '#wikiPreview',
+ '#wikiDiff',
+ '#catlinks',
+ '#p-lang',
+ // Editing-related
+ '.templatesUsed',
+ '.limitreport',
+ '.mw-summary-preview'
+ ];
+ $copyElements = $( copySelectors.join( ',' ) );
+
+ // Not shown during normal preview, to be removed if present
+ $( '.mw-newarticletext' ).remove();
+
+ if ( $spinner.length === 0 ) {
+ $spinner = $.createSpinner( {
+ size: 'large',
+ type: 'block'
+ } )
+ .addClass( 'mw-spinner-preview' )
+ .css( 'margin-top', '1em' );
+ $wikiPreview.before( $spinner );
+ } else {
+ $spinner.show();
+ }
+
+ // Can't use fadeTo because it calls show(), and we might want to keep some elements hidden
+ // (e.g. empty #catlinks)
+ $copyElements.animate( { opacity: 0.4 }, 'fast' );
+
+ api = new mw.Api();
+ postData = {
+ formatversion: 2,
+ action: 'parse',
+ title: mw.config.get( 'wgPageName' ),
+ summary: summary.getValue(),
+ prop: ''
+ };
+
+ if ( isDiff ) {
+ $wikiPreview.hide();
+
+ if ( postData.summary ) {
+ parseRequest = api.post( postData );
+ }
+
+ diffRequest = api.post( {
+ formatversion: 2,
+ action: 'query',
+ prop: 'revisions',
+ titles: mw.config.get( 'wgPageName' ),
+ rvdifftotext: $textbox.textSelection( 'getContents' ),
+ rvdifftotextpst: true,
+ rvprop: '',
+ rvsection: section === '' ? undefined : section
+ } );
+
+ // Wait for the summary before showing the diff so the page doesn't jump twice
+ $.when( diffRequest, parseRequest ).done( function ( response ) {
+ var diffHtml;
+ try {
+ diffHtml = response[ 0 ].query.pages[ 0 ]
+ .revisions[ 0 ].diff.body;
+ $wikiDiff.find( 'table.diff tbody' ).html( diffHtml );
+ mw.hook( 'wikipage.diff' ).fire( $wikiDiff.find( 'table.diff' ) );
+ } catch ( err ) {
+ // "result.blah is undefined" error, ignore
+ mw.log.warn( err );
+ }
+ $wikiDiff.show();
+ } );
+ } else {
+ $wikiDiff.hide();
+
+ $.extend( postData, {
+ prop: 'text|indicators|displaytitle|modules|jsconfigvars|categorieshtml|templates|langlinks|limitreporthtml',
+ text: $textbox.textSelection( 'getContents' ),
+ pst: true,
+ preview: true,
+ sectionpreview: section !== '',
+ disableeditsection: true,
+ useskin: mw.config.get( 'skin' ),
+ uselang: mw.config.get( 'wgUserLanguage' )
+ } );
+ if ( section === 'new' ) {
+ postData.section = 'new';
+ postData.sectiontitle = postData.summary;
+ }
+
+ parseRequest = api.post( postData );
+ parseRequest.done( function ( response ) {
+ var li, newList, $displaytitle, $content, $parent, $list;
+ if ( response.parse.jsconfigvars ) {
+ mw.config.set( response.parse.jsconfigvars );
+ }
+ if ( response.parse.modules ) {
+ mw.loader.load( response.parse.modules.concat(
+ response.parse.modulescripts,
+ response.parse.modulestyles
+ ) );
+ }
+
+ newList = [];
+ $.each( response.parse.indicators, function ( name, indicator ) {
+ newList.push(
+ $( '<div>' )
+ .addClass( 'mw-indicator' )
+ .attr( 'id', mw.util.escapeIdForAttribute( 'mw-indicator-' + name ) )
+ .html( indicator )
+ .get( 0 ),
+ // Add a whitespace between the <div>s because
+ // they get displayed with display: inline-block
+ document.createTextNode( '\n' )
+ );
+ } );
+ $( '.mw-indicators' ).empty().append( newList );
+
+ if ( response.parse.displaytitle ) {
+ $displaytitle = $( $.parseHTML( response.parse.displaytitle ) );
+ $( '#firstHeading' ).msg(
+ mw.config.get( 'wgEditMessage', 'editing' ),
+ $displaytitle
+ );
+ document.title = mw.msg(
+ 'pagetitle',
+ mw.msg(
+ mw.config.get( 'wgEditMessage', 'editing' ),
+ $displaytitle.text()
+ )
+ );
+ }
+ if ( response.parse.categorieshtml ) {
+ $content = $( $.parseHTML( response.parse.categorieshtml ) );
+ mw.hook( 'wikipage.categories' ).fire( $content );
+ $( '.catlinks[data-mw="interface"]' ).replaceWith( $content );
+ }
+ if ( response.parse.templates ) {
+ newList = [];
+ $.each( response.parse.templates, function ( i, template ) {
+ li = $( '<li>' )
+ .append( $( '<a>' )
+ .attr( {
+ href: mw.util.getUrl( template.title ),
+ 'class': ( template.exists ? '' : 'new' )
+ } )
+ .text( template.title )
+ );
+ newList.push( li );
+ } );
+
+ $editform.find( '.templatesUsed .mw-editfooter-list' ).detach().empty().append( newList ).appendTo( '.templatesUsed' );
+ }
+ if ( response.parse.limitreporthtml ) {
+ $( '.limitreport' ).html( response.parse.limitreporthtml );
+ }
+ if ( response.parse.langlinks && mw.config.get( 'skin' ) === 'vector' ) {
+ newList = [];
+ $.each( response.parse.langlinks, function ( i, langlink ) {
+ var bcp47 = mw.language.bcp47( langlink.lang );
+ li = $( '<li>' )
+ .addClass( 'interlanguage-link interwiki-' + langlink.lang )
+ .append( $( '<a>' )
+ .attr( {
+ href: langlink.url,
+ title: langlink.title + ' - ' + langlink.langname,
+ lang: bcp47,
+ hreflang: bcp47
+ } )
+ .text( langlink.autonym )
+ );
+ newList.push( li );
+ } );
+ $list = $( '#p-lang ul' );
+ $parent = $list.parent();
+ $list.detach().empty().append( newList ).prependTo( $parent );
+ }
+
+ if ( response.parse.text ) {
+ $content = $wikiPreview.children( '.mw-content-ltr,.mw-content-rtl' );
+ $content
+ .detach()
+ .html( response.parse.text );
+
+ mw.hook( 'wikipage.content' ).fire( $content );
+
+ // Reattach
+ $wikiPreview.append( $content );
+
+ $wikiPreview.show();
+ }
+ } );
+ }
+ $.when( parseRequest, diffRequest ).done( function ( parseResp ) {
+ var parse = parseResp && parseResp[ 0 ].parse,
+ isSubject = ( section === 'new' ),
+ summaryMsg = isSubject ? 'subject-preview' : 'summary-preview',
+ $summaryPreview = $editform.find( '.mw-summary-preview' ).empty();
+ if ( parse && parse.parsedsummary ) {
+ $summaryPreview.append(
+ mw.message( summaryMsg ).parse(),
+ ' ',
+ $( '<span>' ).addClass( 'comment' ).html(
+ // There is no equivalent to rawParams
+ mw.message( 'parentheses' ).escaped()
+ // .replace() use $ as start of a pattern.
+ // $$ is the pattern for '$'.
+ // The inner .replace() duplicates any $ and
+ // the outer .replace() simplifies the $$.
+ .replace( '$1', parse.parsedsummary.replace( /\$/g, '$$$$' ) )
+ )
+ );
+ }
+ mw.hook( 'wikipage.editform' ).fire( $editform );
+ } ).always( function () {
+ $spinner.hide();
+ $copyElements.animate( {
+ opacity: 1
+ }, 'fast' );
+ } ).fail( function ( code, result ) {
+ // This just shows the error for whatever request failed first
+ var errorMsg = 'API error: ' + code;
+ if ( code === 'http' ) {
+ errorMsg = 'HTTP error: ';
+ if ( result.exception ) {
+ errorMsg += result.exception;
+ } else {
+ errorMsg += result.textStatus;
+ }
+ }
+ $errorBox = $( '<div>' )
+ .addClass( 'errorbox' )
+ .html( '<strong>' + mw.message( 'previewerrortext' ).escaped() + '</strong><br>' )
+ .append( document.createTextNode( errorMsg ) );
+ $wikiDiff.hide();
+ $wikiPreview.hide().before( $errorBox );
+ } );
+ }
+
+ $( function () {
+ // Do not enable on user .js/.css pages, as there's no sane way of "previewing"
+ // the scripts or styles without reloading the page.
+ if ( $( '#mw-userjsyoucanpreview' ).length || $( '#mw-usercssyoucanpreview' ).length ) {
+ return;
+ }
+
+ // The following elements can change in a preview but are not output
+ // by the server when they're empty until the preview response.
+ // TODO: Make the server output these always (in a hidden state), so we don't
+ // have to fish and (hopefully) put them in the right place (since skins
+ // can change where they are output).
+
+ if ( !document.getElementById( 'p-lang' ) && document.getElementById( 'p-tb' ) && mw.config.get( 'skin' ) === 'vector' ) {
+ $( '.portal:last' ).after(
+ $( '<div>' ).attr( {
+ 'class': 'portal',
+ id: 'p-lang',
+ role: 'navigation',
+ 'aria-labelledby': 'p-lang-label'
+ } )
+ .append( $( '<h3>' ).attr( 'id', 'p-lang-label' ).text( mw.msg( 'otherlanguages' ) ) )
+ .append( $( '<div>' ).addClass( 'body' ).append( '<ul>' ) )
+ );
+ }
+
+ if ( !$( '.mw-summary-preview' ).length ) {
+ $( '#wpSummaryWidget' ).after(
+ $( '<div>' ).addClass( 'mw-summary-preview' )
+ );
+ }
+
+ if ( !document.getElementById( 'wikiDiff' ) && document.getElementById( 'wikiPreview' ) ) {
+ $( '#wikiPreview' ).after(
+ $( '<div>' )
+ .hide()
+ .attr( 'id', 'wikiDiff' )
+ .html( '<table class="diff"><col class="diff-marker"/><col class="diff-content"/>' +
+ '<col class="diff-marker"/><col class="diff-content"/><tbody/></table>' )
+ );
+ }
+
+ // This should be moved down to '#editform', but is kept on the body for now
+ // because the LiquidThreads extension is re-using this module with only half
+ // the EditPage (doesn't include #editform presumably, T57463).
+ $( document.body ).on( 'click', '#wpPreview, #wpDiff', doLivePreview );
+ } );
+
+}( mediaWiki, jQuery ) );
scripts.mit.edu / autoinstallsdev / mediawiki.git / blobdiff