mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-12-22 11:02:58 +00:00
2644c84cda
250ms gaps are pretty common when typing at a normal speed, resulting in a lot of (often expensive) API requests (e.g. T312319). For most use cases this level of responsiveness in the preview is not necessary. Change-Id: I6504567d4da02a66171ee35a9c4fd35c85136909
100 lines
2.7 KiB
JavaScript
100 lines
2.7 KiB
JavaScript
/*!
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* VisualEditor UserInterface MWExtensionPreviewDialog class.
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*
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* @copyright 2011-2020 VisualEditor Team and others; see AUTHORS.txt
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* @license The MIT License (MIT); see LICENSE.txt
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*/
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/**
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* Dialog for editing generic MediaWiki extensions with a preview.
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*
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* @class
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* @abstract
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* @extends ve.ui.MWExtensionDialog
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*
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* @constructor
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* @param {Object} [config] Configuration options
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*/
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ve.ui.MWExtensionPreviewDialog = function VeUiMWExtensionPreviewDialog() {
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// Parent constructor
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ve.ui.MWExtensionPreviewDialog.super.apply( this, arguments );
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this.updatePreviewDebounced = ve.debounce( this.updatePreview.bind( this ), 1000 );
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};
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/* Inheritance */
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OO.inheritClass( ve.ui.MWExtensionPreviewDialog, ve.ui.MWExtensionDialog );
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/* Methods */
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/**
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* @inheritdoc
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*/
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ve.ui.MWExtensionPreviewDialog.prototype.initialize = function () {
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// Parent method
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ve.ui.MWExtensionPreviewDialog.super.prototype.initialize.call( this );
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// Properties
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this.previewNode = null;
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this.previewElement = new ve.ui.MWPreviewElement();
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// Initialization
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this.$element.addClass( 've-ui-mwExtensionPreviewDialog' );
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};
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/**
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* @inheritdoc
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*/
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ve.ui.MWExtensionPreviewDialog.prototype.getSetupProcess = function ( data ) {
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return ve.ui.MWExtensionPreviewDialog.super.prototype.getSetupProcess.call( this, data )
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.next( function () {
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var element;
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if ( this.selectedNode ) {
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element = this.selectedNode.getClonedElement();
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} else {
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element = this.getNewElement();
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}
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var linearData = [ element, { type: '/' + element.type } ];
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if ( ve.dm.nodeFactory.isNodeContent( element.type ) ) {
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linearData = [ { type: 'paragraph' } ].concat( linearData, { type: '/paragraph' } );
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}
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// We assume that WindowAction pass
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var doc = data.fragment.getDocument().cloneWithData( linearData.concat( [
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{ type: 'internalList' },
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{ type: '/internalList' }
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] ) );
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var rootNode = doc.getDocumentNode().children[ 0 ];
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this.previewNode = doc.getNodesByType( element.type )[ 0 ];
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this.previewElement.setModel( rootNode );
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}, this );
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};
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/**
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* @inheritdoc
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*/
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ve.ui.MWExtensionPreviewDialog.prototype.onChange = function () {
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// Parent method
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ve.ui.MWExtensionPreviewDialog.super.prototype.onChange.call( this );
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this.updatePreviewDebounced();
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};
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/**
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* Update the node rendering to reflect the current content in the dialog.
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*/
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ve.ui.MWExtensionPreviewDialog.prototype.updatePreview = function () {
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var mwData = ve.copy( this.previewNode.getAttribute( 'mw' ) ),
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doc = this.previewNode.getDocument();
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this.updateMwData( mwData );
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doc.commit(
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ve.dm.TransactionBuilder.static.newFromAttributeChanges(
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doc, this.previewNode.getOuterRange().start, { mw: mwData }
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)
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);
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this.previewElement.updatePreview();
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};
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