mediawiki-extensions-Visual.../modules/ve-mw/ui/widgets/ve.ui.MWPreTextInputWidget.js

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/*!
* VisualEditor UserInterface MWPreTextInputWidget class.
*
* @copyright 2011-2017 VisualEditor Team and others; see http://ve.mit-license.org
*/
/**
* Text input widget which hides but preserves a single leading and trailing newline.
*
* @class
* @extends ve.ui.WhitespacePreservingTextInputWidget
*
* @constructor
* @param {Object} [config] Configuration options
*/
ve.ui.MWPreTextInputWidget = function VeUiMWPreTextInputWidget( config ) {
// Parent constructor
ve.ui.MWPreTextInputWidget.super.call( this, config );
};
/* Inheritance */
OO.inheritClass( ve.ui.MWPreTextInputWidget, ve.ui.WhitespacePreservingTextInputWidget );
/* Methods */
/**
* @inheritdoc
*/
ve.ui.MWPreTextInputWidget.prototype.setValueAndWhitespace = function ( value ) {
this.whitespace[ 0 ] = value.match( /^\n?/ )[ 0 ];
value = value.slice( this.whitespace[ 0 ].length );
this.whitespace[ 1 ] = value.match( /\n?$/ )[ 0 ];
value = value.slice( 0, value.length - this.whitespace[ 1 ].length );
this.setValue( value );
};