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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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61 }); | 61 }); |
62 } | 62 } |
63 | 63 |
64 var objectInfo = objectInfoMap.get(object); | 64 var objectInfo = objectInfoMap.get(object); |
65 if (IS_UNDEFINED(objectInfo)) { | 65 if (IS_UNDEFINED(objectInfo)) { |
66 // TODO: setup objectInfo.notifier | 66 // TODO: setup objectInfo.notifier |
67 objectInfo = { | 67 objectInfo = { |
68 changeObservers: new InternalArray(callback) | 68 changeObservers: new InternalArray(callback) |
69 }; | 69 }; |
70 objectInfoMap.set(object, objectInfo); | 70 objectInfoMap.set(object, objectInfo); |
| 71 %SetIsObserved(object, true); |
71 return; | 72 return; |
72 } | 73 } |
73 | 74 |
74 var changeObservers = objectInfo.changeObservers; | 75 var changeObservers = objectInfo.changeObservers; |
75 if (changeObservers.indexOf(callback) >= 0) | 76 if (changeObservers.indexOf(callback) >= 0) |
76 return; | 77 return; |
77 | 78 |
78 changeObservers.push(callback); | 79 changeObservers.push(callback); |
79 } | 80 } |
80 | 81 |
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102 // TODO: "activate" the observer | 103 // TODO: "activate" the observer |
103 | 104 |
104 if (IS_NULL(observerInfo.pendingChangeRecords)) { | 105 if (IS_NULL(observerInfo.pendingChangeRecords)) { |
105 observerInfo.pendingChangeRecords = new InternalArray(changeRecord); | 106 observerInfo.pendingChangeRecords = new InternalArray(changeRecord); |
106 } else { | 107 } else { |
107 observerInfo.pendingChangeRecords.push(changeRecord); | 108 observerInfo.pendingChangeRecords.push(changeRecord); |
108 } | 109 } |
109 } | 110 } |
110 } | 111 } |
111 | 112 |
| 113 function NotifyChange(type, object, name, oldValue) { |
| 114 var objectInfo = objectInfoMap.get(object); |
| 115 var changeRecord = (arguments.length < 4) ? |
| 116 { type: type, object: object, name: name } : |
| 117 { type: type, object: object, name: name, oldValue: oldValue }; |
| 118 InternalObjectFreeze(changeRecord); |
| 119 EnqueueChangeRecord(changeRecord, objectInfo.changeObservers); |
| 120 } |
| 121 |
112 function ObjectNotify(object, changeRecord) { | 122 function ObjectNotify(object, changeRecord) { |
113 // TODO: notifier needs to be [[THIS]] | 123 // TODO: notifier needs to be [[THIS]] |
114 if (!IS_STRING(changeRecord.type)) | 124 if (!IS_STRING(changeRecord.type)) |
115 throw MakeTypeError("observe_type_non_string"); | 125 throw MakeTypeError("observe_type_non_string"); |
116 | 126 |
117 var objectInfo = objectInfoMap.get(object); | 127 var objectInfo = objectInfoMap.get(object); |
118 if (IS_UNDEFINED(objectInfo)) | 128 if (IS_UNDEFINED(objectInfo)) |
119 return; | 129 return; |
120 | 130 |
121 var newRecord = { | 131 var newRecord = { |
122 object: object // TODO: Needs to be 'object' retreived from notifier | 132 object: object // TODO: Needs to be 'object' retrieved from notifier |
123 }; | 133 }; |
124 for (var prop in changeRecord) { | 134 for (var prop in changeRecord) { |
125 if (prop === 'object') | 135 if (prop === 'object') |
126 continue; | 136 continue; |
127 newRecord[prop] = changeRecord[prop]; | 137 newRecord[prop] = changeRecord[prop]; |
128 } | 138 } |
129 InternalObjectFreeze(newRecord); | 139 InternalObjectFreeze(newRecord); |
130 | 140 |
131 EnqueueChangeRecord(newRecord, objectInfo.changeObservers); | 141 EnqueueChangeRecord(newRecord, objectInfo.changeObservers); |
132 } | 142 } |
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154 function SetupObjectObserve() { | 164 function SetupObjectObserve() { |
155 %CheckIsBootstrapping(); | 165 %CheckIsBootstrapping(); |
156 InstallFunctions($Object, DONT_ENUM, $Array( | 166 InstallFunctions($Object, DONT_ENUM, $Array( |
157 "deliverChangeRecords", ObjectDeliverChangeRecords, | 167 "deliverChangeRecords", ObjectDeliverChangeRecords, |
158 "notify", ObjectNotify, // TODO: Remove when getNotifier is implemented. | 168 "notify", ObjectNotify, // TODO: Remove when getNotifier is implemented. |
159 "observe", ObjectObserve, | 169 "observe", ObjectObserve, |
160 "unobserve", ObjectUnobserve | 170 "unobserve", ObjectUnobserve |
161 )); | 171 )); |
162 } | 172 } |
163 | 173 |
164 SetupObjectObserve(); | 174 SetupObjectObserve(); |
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