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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 /** | 5 /** |
6 * @fileoverview A command is an abstraction of an action a user can do in the | 6 * @fileoverview A command is an abstraction of an action a user can do in the |
7 * UI. | 7 * UI. |
8 * | 8 * |
9 * When the focus changes in the document for each command a canExecute event | 9 * When the focus changes in the document for each command a canExecute event |
10 * is dispatched on the active element. By listening to this event you can | 10 * is dispatched on the active element. By listening to this event you can |
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165 */ | 165 */ |
166 cr.defineProperty(Command, 'disabled', cr.PropertyKind.BOOL_ATTR); | 166 cr.defineProperty(Command, 'disabled', cr.PropertyKind.BOOL_ATTR); |
167 | 167 |
168 /** | 168 /** |
169 * Whether the command is hidden or not. | 169 * Whether the command is hidden or not. |
170 * @type {boolean} | 170 * @type {boolean} |
171 */ | 171 */ |
172 cr.defineProperty(Command, 'hidden', cr.PropertyKind.BOOL_ATTR); | 172 cr.defineProperty(Command, 'hidden', cr.PropertyKind.BOOL_ATTR); |
173 | 173 |
174 /** | 174 /** |
175 * Whether the command is checked or not. | |
176 * @type {boolean} | |
177 */ | |
178 cr.defineProperty(Command, 'checked', cr.PropertyKind.BOOL_ATTR); | |
179 | |
180 /** | |
181 * Dispatches a canExecute event on the target. | 175 * Dispatches a canExecute event on the target. |
182 * @param {cr.ui.Command} command The command that we are testing for. | 176 * @param {cr.ui.Command} command The command that we are testing for. |
183 * @param {Element} target The target element to dispatch the event on. | 177 * @param {Element} target The target element to dispatch the event on. |
184 */ | 178 */ |
185 function dispatchCanExecuteEvent(command, target) { | 179 function dispatchCanExecuteEvent(command, target) { |
186 var e = new CanExecuteEvent(command, true) | 180 var e = new CanExecuteEvent(command, true) |
187 target.dispatchEvent(e); | 181 target.dispatchEvent(e); |
188 command.disabled = !e.canExecute; | 182 command.disabled = !e.canExecute; |
189 } | 183 } |
190 | 184 |
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292 this.stopPropagation(); | 286 this.stopPropagation(); |
293 } | 287 } |
294 }; | 288 }; |
295 | 289 |
296 // Export | 290 // Export |
297 return { | 291 return { |
298 Command: Command, | 292 Command: Command, |
299 CanExecuteEvent: CanExecuteEvent | 293 CanExecuteEvent: CanExecuteEvent |
300 }; | 294 }; |
301 }); | 295 }); |
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