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/* Preview module for wikiEditor */
( function ( $, mw ) {
/*jshint onevar:false */
$.wikiEditor.modules.preview = {
/**
* Compatability map
*/
browsers: {
// Left-to-right languages
ltr: {
msie: [['>=', 7]],
firefox: [['>=', 3]],
opera: [['>=', 9.6]],
safari: [['>=', 4]]
},
// Right-to-left languages
rtl: {
msie: [['>=', 8]],
firefox: [['>=', 3]],
opera: [['>=', 9.6]],
safari: [['>=', 4]]
}
},
/**
* Internally used functions
*/
fn: {
/**
* Creates a preview module within a wikiEditor
* @param context Context object of editor to create module in
* @param config Configuration object to create module from
*/
create: function ( context ) {
if ( 'initialized' in context.modules.preview ) {
return;
}
context.modules.preview = {
'initialized': true,
'previewText': null,
'changesText': null
};
context.modules.preview.$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();
$.post(
mw.util.wikiScript( 'api' ),
{
format: 'json',
action: 'parse',
title: mw.config.get( 'wgPageName' ),
text: wikitext,
prop: 'text',
pst: ''
},
function ( data ) {
if (
typeof data.parse === 'undefined' ||
typeof data.parse.text === 'undefined' ||
typeof data.parse.text['*'] === 'undefined'
) {
return;
}
context.modules.preview.previewText = wikitext;
context.modules.preview.$preview.find( '.wikiEditor-preview-loading' ).hide();
context.modules.preview.$preview.find( '.wikiEditor-preview-contents' )
.html( data.parse.text['*'] )
.find( 'a:not([href^=#])' ).click( false );
},
'json'
);
}
} );
context.$changesTab = context.fn.addView( {
'name': 'changes',
'titleMsg': 'wikieditor-preview-changes-tab',
'init': function ( context ) {
// Gets the latest copy of the wikitext
var wikitext = context.$textarea.textSelection( 'getContents' );
// Aborts when nothing has changed since the last time
if ( context.modules.preview.changesText === wikitext ) {
return;
}
context.$changesTab.find( 'table.diff tbody' ).empty();
context.$changesTab.find( '.wikiEditor-preview-loading' ).show();
// Call the API. First PST the input, then diff it
var postdata = {
format: 'json',
action: 'parse',
onlypst: '',
text: wikitext
};
$.post( mw.util.wikiScript( 'api' ), postdata, function ( data ) {
try {
var postdata2 = {
format: 'json',
action: 'query',
indexpageids: '',
prop: 'revisions',
titles: mw.config.get( 'wgPageName' ),
rvdifftotext: data.parse.text['*'],
rvprop: ''
};
var section = $( '[name="wpSection"]' ).val();
if ( section !== '' ) {
postdata2.rvsection = section;
}
$.post( mw.util.wikiScript( 'api' ), postdata2, function ( data ) {
// Add diff CSS
mw.loader.load( 'mediawiki.action.history.diff' );
try {
var diff = data.query.pages[data.query.pageids[0]]
.revisions[0].diff['*'];
context.$changesTab.find( 'table.diff tbody' )
.html( diff );
context.$changesTab
.find( '.wikiEditor-preview-loading' ).hide();
context.modules.preview.changesText = wikitext;
} catch ( e ) { } // "blah is undefined" error, ignore
}, 'json'
);
} catch ( e ) { } // "blah is undefined" error, ignore
}, 'json' );
}
} );
var loadingMsg = mw.msg( 'wikieditor-preview-loading' );
context.modules.preview.$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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