mediawiki-extensions-Visual.../modules/ve-mw/ui/inspectors/ve.ui.MWMathInspector.js

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/*!
* 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.titleMessage = '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 );