1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
|
// Copyright 2007 The Closure Library Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS-IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/**
* @fileoverview A menu item class that supports selection state.
*
* @author attila@google.com (Attila Bodis)
*/
goog.provide('goog.ui.Option');
goog.require('goog.ui.Component.EventType');
goog.require('goog.ui.ControlContent');
goog.require('goog.ui.MenuItem');
goog.require('goog.ui.registry');
/**
* Class representing a menu option. This is just a convenience class that
* extends {@link goog.ui.MenuItem} by making it selectable.
*
* @param {goog.ui.ControlContent} content Text caption or DOM structure to
* display as the content of the item (use to add icons or styling to
* menus).
* @param {*=} opt_model Data/model associated with the menu item.
* @param {goog.dom.DomHelper=} opt_domHelper Optional DOM helper used for
* document interactions.
* @constructor
* @extends {goog.ui.MenuItem}
*/
goog.ui.Option = function(content, opt_model, opt_domHelper) {
goog.ui.MenuItem.call(this, content, opt_model, opt_domHelper);
this.setSelectable(true);
};
goog.inherits(goog.ui.Option, goog.ui.MenuItem);
/**
* Performs the appropriate action when the option is activated by the user.
* Overrides the superclass implementation by not changing the selection state
* of the option and not dispatching any SELECTED events, for backwards
* compatibility with existing uses of this class.
* @param {goog.events.Event} e Mouse or key event that triggered the action.
* @return {boolean} True if the action was allowed to proceed, false otherwise.
* @override
*/
goog.ui.Option.prototype.performActionInternal = function(e) {
return this.dispatchEvent(goog.ui.Component.EventType.ACTION);
};
// Register a decorator factory function for goog.ui.Options.
goog.ui.registry.setDecoratorByClassName(
goog.getCssName('goog-option'), function() {
// Option defaults to using MenuItemRenderer.
return new goog.ui.Option(null);
});
|
