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https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
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66 lines
1.2 KiB
JavaScript
66 lines
1.2 KiB
JavaScript
/*!
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* VisualEditor UserInterface HistoryAction class.
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*
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* @copyright 2011-2013 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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* History action.
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*
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* @class
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* @extends ve.ui.Action
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* @constructor
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* @param {ve.ui.Surface} surface Surface to act on
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*/
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ve.ui.HistoryAction = function VeUiHistoryAction( surface ) {
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// Parent constructor
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ve.ui.Action.call( this, surface );
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};
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/* Inheritance */
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OO.inheritClass( ve.ui.HistoryAction, ve.ui.Action );
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/* Static Properties */
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ve.ui.HistoryAction.static.name = 'history';
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/**
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* List of allowed methods for the action.
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*
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* @static
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* @property
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*/
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ve.ui.HistoryAction.static.methods = [ 'undo', 'redo' ];
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/* Methods */
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/**
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* Step backwards in time.
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*
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* @method
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*/
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ve.ui.HistoryAction.prototype.undo = function () {
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var range = this.surface.getModel().undo();
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if ( range ) {
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this.surface.getModel().change( null, range );
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}
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};
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/**
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* Step forwards in time.
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*
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* @method
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*/
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ve.ui.HistoryAction.prototype.redo = function () {
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var range = this.surface.getModel().redo();
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if ( range ) {
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this.surface.getModel().change( null, range );
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}
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};
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/* Registration */
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ve.ui.actionFactory.register( ve.ui.HistoryAction );
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