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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 var eventBindingsNatives = requireNative('event_bindings'); | 5 var eventBindingsNatives = requireNative('event_bindings'); |
6 var AttachEvent = eventBindingsNatives.AttachEvent; | 6 var AttachEvent = eventBindingsNatives.AttachEvent; |
7 var DetachEvent = eventBindingsNatives.DetachEvent; | 7 var DetachEvent = eventBindingsNatives.DetachEvent; |
8 var Print = eventBindingsNatives.Print; | 8 var Print = eventBindingsNatives.Print; |
9 | 9 |
10 var chromeHidden = requireNative('chrome_hidden').GetChromeHidden(); | 10 var chromeHidden = requireNative('chrome_hidden').GetChromeHidden(); |
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108 // Dispatches a named event with the given JSON array, which is deserialized | 108 // Dispatches a named event with the given JSON array, which is deserialized |
109 // before dispatch. The JSON array is the list of arguments that will be | 109 // before dispatch. The JSON array is the list of arguments that will be |
110 // sent with the event callback. | 110 // sent with the event callback. |
111 chromeHidden.Event.dispatchJSON = function(name, args) { | 111 chromeHidden.Event.dispatchJSON = function(name, args) { |
112 if (attachedNamedEvents[name]) { | 112 if (attachedNamedEvents[name]) { |
113 if (args) { | 113 if (args) { |
114 args = chromeHidden.JSON.parse(args); | 114 args = chromeHidden.JSON.parse(args); |
115 if (eventArgumentMassagers[name]) | 115 if (eventArgumentMassagers[name]) |
116 eventArgumentMassagers[name](args); | 116 eventArgumentMassagers[name](args); |
117 } | 117 } |
118 return attachedNamedEvents[name].dispatch.apply( | 118 var result = attachedNamedEvents[name].dispatch.apply( |
119 attachedNamedEvents[name], args); | 119 attachedNamedEvents[name], args); |
| 120 if (result && result.validationErrors) |
| 121 return result.validationErrors; |
120 } | 122 } |
121 }; | 123 }; |
122 | 124 |
123 // Dispatches a named event with the given arguments, supplied as an array. | 125 // Dispatches a named event with the given arguments, supplied as an array. |
124 chromeHidden.Event.dispatch = function(name, args) { | 126 chromeHidden.Event.dispatch = function(name, args) { |
125 if (attachedNamedEvents[name]) { | 127 if (attachedNamedEvents[name]) { |
126 attachedNamedEvents[name].dispatch.apply( | 128 attachedNamedEvents[name].dispatch.apply( |
127 attachedNamedEvents[name], args); | 129 attachedNamedEvents[name], args); |
128 } | 130 } |
129 }; | 131 }; |
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186 }; | 188 }; |
187 | 189 |
188 // Dispatches this event object to all listeners, passing all supplied | 190 // Dispatches this event object to all listeners, passing all supplied |
189 // arguments to this function each listener. | 191 // arguments to this function each listener. |
190 chrome.Event.prototype.dispatch = function(varargs) { | 192 chrome.Event.prototype.dispatch = function(varargs) { |
191 if (!this.eventOptions_.supportsListeners) | 193 if (!this.eventOptions_.supportsListeners) |
192 throw new Error("This event does not support listeners."); | 194 throw new Error("This event does not support listeners."); |
193 var args = Array.prototype.slice.call(arguments); | 195 var args = Array.prototype.slice.call(arguments); |
194 var validationErrors = this.validate_(args); | 196 var validationErrors = this.validate_(args); |
195 if (validationErrors) { | 197 if (validationErrors) { |
196 return validationErrors; | 198 return {validationErrors: validationErrors}; |
197 } | 199 } |
| 200 var results = []; |
198 for (var i = 0; i < this.listeners_.length; i++) { | 201 for (var i = 0; i < this.listeners_.length; i++) { |
199 try { | 202 try { |
200 this.listeners_[i].apply(null, args); | 203 var result = this.listeners_[i].apply(null, args); |
| 204 if (result !== undefined) |
| 205 results.push(result); |
201 } catch (e) { | 206 } catch (e) { |
202 console.error("Error in event handler for '" + this.eventName_ + | 207 console.error("Error in event handler for '" + this.eventName_ + |
203 "': " + e.stack); | 208 "': " + e.stack); |
204 } | 209 } |
205 } | 210 } |
| 211 if (results.length) |
| 212 return {results: results}; |
206 }; | 213 }; |
207 | 214 |
208 // Attaches this event object to its name. Only one object can have a given | 215 // Attaches this event object to its name. Only one object can have a given |
209 // name. | 216 // name. |
210 chrome.Event.prototype.attach_ = function() { | 217 chrome.Event.prototype.attach_ = function() { |
211 AttachEvent(this.eventName_); | 218 AttachEvent(this.eventName_); |
212 allAttachedEvents[allAttachedEvents.length] = this; | 219 allAttachedEvents[allAttachedEvents.length] = this; |
213 if (!this.eventName_) | 220 if (!this.eventName_) |
214 return; | 221 return; |
215 | 222 |
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302 for (var i = 0; i < allAttachedEvents.length; ++i) { | 309 for (var i = 0; i < allAttachedEvents.length; ++i) { |
303 var event = allAttachedEvents[i]; | 310 var event = allAttachedEvents[i]; |
304 if (event) | 311 if (event) |
305 event.detach_(false); | 312 event.detach_(false); |
306 } | 313 } |
307 }; | 314 }; |
308 | 315 |
309 chromeHidden.dispatchError = function(msg) { | 316 chromeHidden.dispatchError = function(msg) { |
310 console.error(msg); | 317 console.error(msg); |
311 }; | 318 }; |
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