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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 library observe.src.bind_property; | 5 library observe.src.bind_property; |
6 | 6 |
7 import 'dart:async'; | 7 import 'dart:async'; |
8 import 'package:observe/observe.dart'; | 8 import 'package:observe/observe.dart'; |
9 | 9 |
10 /// Forwards an observable property from one object to another. For example: | 10 /// Forwards an observable property from one object to another. For example: |
(...skipping 11 matching lines...) Expand all Loading... |
22 /// String get prop => _otherModel.value; | 22 /// String get prop => _otherModel.value; |
23 /// set prop(String value) { _otherModel.value = value; } | 23 /// set prop(String value) { _otherModel.value = value; } |
24 /// } | 24 /// } |
25 /// | 25 /// |
26 /// See also [notifyPropertyChange]. | 26 /// See also [notifyPropertyChange]. |
27 // TODO(jmesserly): make this an instance method? | 27 // TODO(jmesserly): make this an instance method? |
28 StreamSubscription onPropertyChange( | 28 StreamSubscription onPropertyChange( |
29 Observable source, Symbol sourceName, void callback()) { | 29 Observable source, Symbol sourceName, void callback()) { |
30 return source.changes.listen((records) { | 30 return source.changes.listen((records) { |
31 for (var record in records) { | 31 for (var record in records) { |
32 if (record is PropertyChangeRecord && | 32 if (record is PropertyChangeRecord && record.name == sourceName) { |
33 (record as PropertyChangeRecord).name == sourceName) { | |
34 callback(); | 33 callback(); |
35 break; | 34 break; |
36 } | 35 } |
37 } | 36 } |
38 }); | 37 }); |
39 } | 38 } |
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