mediawiki-extensions-Visual.../modules/ve2/ui/tools/ve.ui.HistoryButtonTool.js

64 lines
1.3 KiB
JavaScript
Raw Normal View History

/**
* Creates an ve.ui.HistoryButtonTool object.
*
* @class
* @constructor
* @extends {ve.ui.ButtonTool}
* @param {ve.ui.Toolbar} toolbar
* @param {String} name
*/
ve.ui.HistoryButtonTool = function( toolbar, name, title, data ) {
// Inheritance
ve.ui.ButtonTool.call( this, toolbar, name, title );
// Properties
this.data = data;
this.enabled = false;
};
/* Methods */
ve.ui.HistoryButtonTool.prototype.onClick = function() {
switch ( this.name ) {
case 'undo':
this.toolbar.surfaceView.model.undo( 1 );
break;
case 'redo':
this.toolbar.surfaceView.model.redo( 1 );
break;
}
};
ve.ui.HistoryButtonTool.prototype.updateState = function( annotations ) {
var surfaceModel = this.toolbar.surfaceView.model;
switch( this.name ) {
case 'undo':
this.enabled = surfaceModel.bigStack.length - surfaceModel.undoIndex > 0;
break;
case 'redo':
this.enabled = surfaceModel.undoIndex > 0;
break;
}
this.updateEnabled();
};
/* Registration */
ve.ui.Tool.tools.undo = {
'constructor': ve.ui.HistoryButtonTool,
'name': 'undo',
'title': 'Undo (ctrl/cmd + Z)'
};
ve.ui.Tool.tools.redo = {
'constructor': ve.ui.HistoryButtonTool,
'name': 'redo',
'title': 'Redo (ctrl/cmd + shift + Z)'
};
/* Inhertiance */
ve.extendClass( ve.ui.HistoryButtonTool, ve.ui.ButtonTool );