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/* Preview module for wikiEditor */
( function ( $, mw ) {
$.wikiEditor.modules.preview = {
/**
* Compatibility map
*/
browsers: {
// Left-to-right languages
ltr: {
msie: [ [ '>=', 9 ] ],
firefox: [ [ '>=', 4 ] ],
opera: [ [ '>=', '10.5' ] ],
safari: [ [ '>=', 5 ] ],
chrome: [ [ '>=', 5 ] ]
},
// Right-to-left languages
rtl: {
msie: [ [ '>=', 9 ] ],
firefox: [ [ '>=', 4 ] ],
opera: [ [ '>=', '10.5' ] ],
safari: [ [ '>=', 5 ] ],
chrome: [ [ '>=', 5 ] ]
}
},
/**
* Internally used functions
*/
fn: {
/**
* Creates a preview module within a wikiEditor
*
* @param {Object} context Context object of editor to create module in
*/
create: function ( context ) {
var loadingMsg,
api = new mw.Api();
if ( 'initialized' in context.modules.preview ) {
return;
}
context.modules.preview = {
initialized: true,
previewText: null,
changesText: null
};
context.modules.preview.$preview = context.fn.addView( {
name: 'preview',
titleMsg: 'wikieditor-preview-tab',
init: function ( context ) {
// Gets the latest copy of the wikitext
var wikitext = context.$textarea.textSelection( 'getContents' );
// Aborts when nothing has changed since the last preview
if ( context.modules.preview.previewText === wikitext ) {
return;
}
context.modules.preview.$preview.find( '.wikiEditor-preview-contents' ).empty();
context.modules.preview.$preview.find( '.wikiEditor-preview-loading' ).show();
api.post( {
formatversion: 2,
action: 'parse',
title: mw.config.get( 'wgPageName' ),
text: wikitext,
pst: '',
prop: 'text|modules|jsconfigvars',
preview: true,
disableeditsection: true,
useskin: mw.config.get( 'skin' ),
uselang: mw.config.get( 'wgUserLanguage' )
} ).always( function () {
context.modules.preview.$preview.find( '.wikiEditor-preview-loading' ).hide();
} ).done( function ( data ) {
var loadmodules, $content;
if ( !data.parse || !data.parse.text ) {
return;
}
if ( data.parse.jsconfigvars ) {
mw.config.set( data.parse.jsconfigvars );
}
loadmodules = data.parse.modules.concat(
data.parse.modulescripts,
data.parse.modulestyles
);
mw.loader.load( loadmodules );
context.modules.preview.previewText = wikitext;
$content = context.modules.preview.$preview.find( '.wikiEditor-preview-contents' )
.detach()
.html( data.parse.text );
$content.append( '<div class="visualClear"></div>' )
.find( 'a:not([href^="#"])' )
.click( false );
mw.hook( 'wikipage.content' ).fire( $content );
context.modules.preview.$preview.append( $content );
} );
}
} );
context.$changesTab = context.fn.addView( {
name: 'changes',
titleMsg: 'wikieditor-preview-changes-tab',
init: function ( context ) {
// Gets the latest copy of the wikitext
var section, postdata, postPromise,
wikitext = context.$textarea.textSelection( 'getContents' );
// Aborts when nothing has changed since the last time
if ( context.modules.preview.changesText === wikitext ) {
return;
}
context.$changesTab.find( 'table.diff tbody' ).empty();
context.$changesTab.find( '.wikiEditor-preview-loading' ).show();
section = $( '[name="wpSection"]' ).val();
postdata = {
formatversion: 2,
action: 'query',
prop: 'revisions',
titles: mw.config.get( 'wgPageName' ),
rvdifftotext: wikitext,
rvdifftotextpst: true,
rvprop: '',
rvsection: section === '' ? undefined : section
};
postPromise = api.post( postdata );
$.when( postPromise, mw.loader.using( 'mediawiki.diff.styles' ) )
.always( function () {
context.$changesTab.find( '.wikiEditor-preview-loading' ).hide();
} )
.done( function ( postResult ) {
var diff;
try {
diff = postResult[ 0 ].query.pages[ 0 ]
.revisions[ 0 ].diff.body;
context.$changesTab.find( 'table.diff tbody' )
.html( diff )
.append( '<div class="visualClear"></div>' );
mw.hook( 'wikipage.diff' )
.fire( context.$changesTab.find( 'table.diff' ) );
context.modules.preview.changesText = wikitext;
} catch ( e ) {
// "data.blah is undefined" error, ignore
}
} );
}
} );
loadingMsg = mw.msg( 'wikieditor-preview-loading' );
context.modules.preview.$preview
.add( context.$changesTab )
.append( $( '<div>' )
.addClass( 'wikiEditor-preview-loading' )
.append( $( '<img>' )
.addClass( 'wikiEditor-preview-spinner' )
.attr( {
src: $.wikiEditor.imgPath + 'dialogs/loading.gif',
valign: 'absmiddle',
alt: loadingMsg,
title: loadingMsg
} )
)
.append(
$( '<span>' ).text( loadingMsg )
)
)
.append( $( '<div>' )
.addClass( 'wikiEditor-preview-contents' )
);
context.$changesTab.find( '.wikiEditor-preview-contents' )
.html( '<table class="diff"><col class="diff-marker"/><col class="diff-content"/>' +
'<col class="diff-marker"/><col class="diff-content"/><tbody/></table>' );
}
}
};
}( jQuery, mediaWiki ) );
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