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mediawiki.action.edit.preview.js
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mediawiki.action.edit.preview.js
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/*!
* Live edit preview.
*/
( function () {
'use strict';
const parsedMessages = require( './mediawiki.action.edit.preview.parsedMessages.json' );
/**
* @ignore
* @param {jQuery.Event} e
*/
function doLivePreview( e ) {
const promise = require( 'mediawiki.page.preview' ).doPreview( {
showDiff: e.target.name === 'wpDiff',
isLivePreview: true,
previewHeader: mw.msg( 'preview' ),
previewNote: parsedMessages.previewnote,
createSpinner: true
} );
if ( !promise ) {
// Something has gone wrong, so submit the form the normal way.
return;
}
e.preventDefault();
}
$( () => {
let selector;
// Enable only live diff on user .js/.css pages, as there's no sensible way of
// "previewing" the scripts or styles without reloading the page.
if ( $( '#mw-userjsyoucanpreview, #mw-usercssyoucanpreview, #mw-userjspreview, #mw-usercsspreview' ).length ) {
selector = '#wpDiff';
} else {
selector = '#wpPreview, #wpDiff';
}
// 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).
// FIXME: This is prone to breaking any time Vector's HTML for portals change.
if ( !document.getElementById( 'p-lang' ) && document.getElementById( 'p-tb' ) && ( mw.config.get( 'skin' ) === 'vector' || mw.config.get( 'skin' ) === 'vector-2022' ) ) {
$( '.portal' ).last().after(
$( '<nav>' )
.attr( {
class: 'mw-portlet mw-portlet-lang vector-menu vector-menu-portal portal',
id: 'p-lang',
role: 'navigation',
'aria-labelledby': 'p-lang-label'
} )
.append(
$( '<label>' )
.attr( {
id: 'p-lang-label',
class: 'vector-menu-heading'
} )
.append(
$( '<span>' )
.addClass( 'vector-menu-heading-label' )
.text( mw.msg( 'otherlanguages' ) )
)
)
.append(
$( '<div>' )
.addClass( 'body vector-menu-content' )
.append( $( '<ul>' ).addClass( 'vector-menu-content-list' ) )
)
);
}
if ( !$( '.mw-summary-preview' ).length ) {
$( '#wpSummaryWidget' ).after(
$( '<div>' ).addClass( 'mw-summary-preview' )
);
}
// 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', selector, doLivePreview );
} );
}() );

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text/x-asm
Expires
Aug 18 2026, 09:27 (6 w, 3 d ago)
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local-disk
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Storage Handle
45/e6/108f179b25eec057d4dc15034b53
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mediawiki.action.edit.preview.js (2 KB)

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