/*! * VisualEditor UserInterface MWMathInspector class. * * @copyright 2011-2014 VisualEditor Team and others; see AUTHORS.txt * @license The MIT License (MIT); see LICENSE.txt */ /** * MediaWiki math inspector. * * @class * @extends ve.ui.MWExtensionInspector * * @constructor * @param {ve.ui.WindowSet} windowSet Window set this inspector is part of * @param {Object} [config] Configuration options */ ve.ui.MWMathInspector = function VeUiMWMathInspector( windowSet, config ) { // Parent constructor ve.ui.MWExtensionInspector.call( this, windowSet, config ); this.onChangeHandler = ve.debounce( ve.bind( this.updatePreview, this ), 250 ); }; /* Inheritance */ OO.inheritClass( ve.ui.MWMathInspector, ve.ui.MWExtensionInspector ); /* Static properties */ ve.ui.MWMathInspector.static.name = 'math'; ve.ui.MWMathInspector.static.icon = 'math'; ve.ui.MWMathInspector.static.title = OO.ui.deferMsg( 'visualeditor-mwmathinspector-title' ); ve.ui.MWMathInspector.static.nodeView = ve.ce.MWMathNode; ve.ui.MWMathInspector.static.nodeModel = ve.dm.MWMathNode; /* Methods */ /** * Update the math node rendering to reflect the content entered into the inspector. */ ve.ui.MWMathInspector.prototype.updatePreview = function () { var newsrc = this.input.getValue(); if ( this.visible ) { this.node.update( { 'extsrc': newsrc } ); } }; /** * @inheritdoc */ ve.ui.MWMathInspector.prototype.setup = function ( data ) { // Parent method ve.ui.MWExtensionInspector.prototype.setup.call( this, data ); var mw, surfaceModel = this.surface.getModel(); this.node = this.surface.getView().getFocusedNode(); if ( !this.node ) { // Create a dummy node, needed for live preview mw = { 'name': 'math', 'attrs': {}, 'body': { 'extsrc': '' } }; surfaceModel.getFragment().collapseRangeToEnd().insertContent( [ { 'type': 'mwMath', 'attributes': { 'mw': mw } }, { 'type': '/mwMath' } ] ); this.node = this.surface.getView().getFocusedNode(); } this.input.on( 'change', this.onChangeHandler ); // Override directionality settings, inspector's input // should always be LTR: this.input.setRTL( false ); }; /** * @inheritdoc */ ve.ui.MWMathInspector.prototype.teardown = function ( data ) { var newsrc = this.input.getValue(), surfaceModel = this.surface.getModel(); this.input.off( 'change', this.onChangeHandler ); if ( newsrc !== '' ) { // Parent method ve.ui.MWExtensionInspector.prototype.teardown.call( this, data ); } else { // The user tried to empty the node, remove it surfaceModel.change( ve.dm.Transaction.newFromRemoval( surfaceModel.getDocument(), this.node.getOuterRange() ) ); // Grandparent method; we're overriding the parent behavior in this case ve.ui.Inspector.prototype.teardown.call( this, data ); } }; /* Registration */ ve.ui.inspectorFactory.register( ve.ui.MWMathInspector );