mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-11-17 03:18:48 +00:00
83 lines
2 KiB
JavaScript
83 lines
2 KiB
JavaScript
/**
|
|
* VisualEditor user interface HistoryButtonTool class.
|
|
*
|
|
* @copyright 2011-2012 VisualEditor Team and others; see AUTHORS.txt
|
|
* @license The MIT License (MIT); see LICENSE.txt
|
|
*/
|
|
|
|
/**
|
|
* Creates an ve.ui.HistoryButtonTool object.
|
|
*
|
|
* @class
|
|
* @constructor
|
|
* @extends {ve.ui.ButtonTool}
|
|
* @param {ve.ui.Toolbar} toolbar
|
|
* @param {String} name
|
|
* @param title
|
|
* @param data
|
|
*/
|
|
ve.ui.HistoryButtonTool = function VeUiHistoryButtonTool( toolbar, name, title, data ) {
|
|
// Parent constructor
|
|
ve.ui.ButtonTool.call( this, toolbar, name, title );
|
|
|
|
// Properties
|
|
this.data = data;
|
|
this.enabled = false;
|
|
|
|
this.toolbar.getSurfaceView().model.on( 'history', ve.bind( this.updateState, this ) );
|
|
};
|
|
|
|
/* Inheritance */
|
|
|
|
ve.inheritClass( ve.ui.HistoryButtonTool, ve.ui.ButtonTool );
|
|
|
|
/* Methods */
|
|
|
|
ve.ui.HistoryButtonTool.prototype.onClick = function () {
|
|
switch ( this.name ) {
|
|
case 'undo':
|
|
case 'redo':
|
|
if ( this.isButtonEnabled( this.name ) ) {
|
|
var surfaceView = this.toolbar.getSurfaceView();
|
|
surfaceView.stopPolling();
|
|
surfaceView.showSelection(
|
|
surfaceView.getModel()[this.name]( 1 ) || surfaceView.model.selection
|
|
);
|
|
surfaceView.clearPollData();
|
|
surfaceView.startPolling();
|
|
}
|
|
break;
|
|
}
|
|
};
|
|
|
|
ve.ui.HistoryButtonTool.prototype.updateState = function ( annotations ) {
|
|
this.enabled = this.isButtonEnabled( this.name );
|
|
this.updateEnabled();
|
|
};
|
|
|
|
ve.ui.HistoryButtonTool.prototype.isButtonEnabled = function ( name ) {
|
|
var surfaceModel = this.toolbar.getSurfaceView().getModel();
|
|
switch ( name ) {
|
|
case 'undo':
|
|
return surfaceModel.bigStack.length - surfaceModel.undoIndex > 0;
|
|
case 'redo':
|
|
return surfaceModel.undoIndex > 0;
|
|
default:
|
|
return false;
|
|
}
|
|
};
|
|
|
|
/* Registration */
|
|
|
|
ve.ui.Tool.tools.undo = {
|
|
'constructor': ve.ui.HistoryButtonTool,
|
|
'name': 'undo',
|
|
'title': ve.msg( 'visualeditor-historybutton-undo-tooltip' )
|
|
};
|
|
|
|
ve.ui.Tool.tools.redo = {
|
|
'constructor': ve.ui.HistoryButtonTool,
|
|
'name': 'redo',
|
|
'title': ve.msg( 'visualeditor-historybutton-redo-tooltip' )
|
|
};
|