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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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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122 * | 122 * |
123 * For example: | 123 * For example: |
124 * "F1" | 124 * "F1" |
125 * "Backspace|Meta" for Apple command backspace. | 125 * "Backspace|Meta" for Apple command backspace. |
126 * "a|Ctrl" for Control A | 126 * "a|Ctrl" for Control A |
127 * "Delete Backspace|Meta" for Delete and Command Backspace | 127 * "Delete Backspace|Meta" for Delete and Command Backspace |
128 * | 128 * |
129 * @type {string} | 129 * @type {string} |
130 */ | 130 */ |
131 shortcut_: '', | 131 shortcut_: '', |
132 get shortcut() { return this.shortcut_; }, | 132 get shortcut() { |
| 133 return this.shortcut_; |
| 134 }, |
133 set shortcut(shortcut) { | 135 set shortcut(shortcut) { |
134 var oldShortcut = this.shortcut_; | 136 var oldShortcut = this.shortcut_; |
135 if (shortcut !== oldShortcut) { | 137 if (shortcut !== oldShortcut) { |
136 this.keyboardShortcuts_ = shortcut.split(/\s+/).map(function(shortcut) { | 138 this.keyboardShortcuts_ = shortcut.split(/\s+/).map(function(shortcut) { |
137 return new KeyboardShortcut(shortcut); | 139 return new KeyboardShortcut(shortcut); |
138 }); | 140 }); |
139 | 141 |
140 // Set this after the keyboardShortcuts_ since that might throw. | 142 // Set this after the keyboardShortcuts_ since that might throw. |
141 this.shortcut_ = shortcut; | 143 this.shortcut_ = shortcut; |
142 cr.dispatchPropertyChange( | 144 cr.dispatchPropertyChange( |
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303 */ | 305 */ |
304 command: null, | 306 command: null, |
305 | 307 |
306 /** | 308 /** |
307 * Whether the target can execute the command. Setting this also stops the | 309 * Whether the target can execute the command. Setting this also stops the |
308 * propagation and prevents the default. Callers can tell if an event has | 310 * propagation and prevents the default. Callers can tell if an event has |
309 * been handled via |this.defaultPrevented|. | 311 * been handled via |this.defaultPrevented|. |
310 * @type {boolean} | 312 * @type {boolean} |
311 */ | 313 */ |
312 canExecute_: false, | 314 canExecute_: false, |
313 get canExecute() { return this.canExecute_; }, | 315 get canExecute() { |
| 316 return this.canExecute_; |
| 317 }, |
314 set canExecute(canExecute) { | 318 set canExecute(canExecute) { |
315 this.canExecute_ = !!canExecute; | 319 this.canExecute_ = !!canExecute; |
316 this.stopPropagation(); | 320 this.stopPropagation(); |
317 this.preventDefault(); | 321 this.preventDefault(); |
318 } | 322 } |
319 }; | 323 }; |
320 | 324 |
321 // Export | 325 // Export |
322 return {Command: Command, CanExecuteEvent: CanExecuteEvent}; | 326 return {Command: Command, CanExecuteEvent: CanExecuteEvent}; |
323 }); | 327 }); |
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