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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 | |
3 // BSD-style license that can be found in the LICENSE file. | |
4 | |
5 library polymer.test.web.custom_event_test; | |
6 | |
7 import 'dart:async'; | |
8 import 'dart:html'; | |
9 import 'package:polymer/polymer.dart'; | |
10 import 'package:template_binding/template_binding.dart' | |
11 show nodeBind, enableBindingsReflection; | |
12 import 'package:unittest/unittest.dart'; | |
13 import 'package:unittest/html_config.dart'; | |
14 | |
15 @CustomTag('foo-bar') | |
16 class FooBar extends PolymerElement { | |
17 // A little too much boilerplate? | |
18 static const EventStreamProvider<CustomEvent> fooEvent = | |
19 const EventStreamProvider<CustomEvent>('foo'); | |
20 static const EventStreamProvider<CustomEvent> barBazEvent = | |
21 const EventStreamProvider<CustomEvent>('barbaz'); | |
22 | |
23 FooBar.created() : super.created(); | |
24 | |
25 Stream<CustomEvent> get onFooEvent => FooBar.fooEvent.forTarget(this); | |
26 Stream<CustomEvent> get onBarBazEvent => FooBar.barBazEvent.forTarget(this); | |
27 | |
28 fireFoo(x) => dispatchEvent(new CustomEvent('foo', detail: x)); | |
29 fireBarBaz(x) => dispatchEvent(new CustomEvent('barbaz', detail: x)); | |
30 } | |
31 | |
32 @CustomTag('test-custom-event') | |
33 class TestCustomEvent extends PolymerElement { | |
34 TestCustomEvent.created() : super.created(); | |
35 | |
36 get fooBar => shadowRoots['test-custom-event'].querySelector('foo-bar'); | |
37 | |
38 final events = []; | |
39 fooHandler(e) => events.add(['foo', e]); | |
40 barBazHandler(e) => events.add(['barbaz', e]); | |
41 } | |
42 | |
43 main() { | |
44 enableBindingsReflection = true; | |
45 | |
46 initPolymer().then((zone) => zone.run(() { | |
47 useHtmlConfiguration(); | |
48 | |
49 setUp(() => Polymer.onReady); | |
50 | |
51 test('custom event', () { | |
52 final testComp = querySelector('test-custom-event'); | |
53 final fooBar = testComp.fooBar; | |
54 | |
55 final binding = nodeBind(fooBar).bindings['on-barbaz']; | |
56 expect(binding is Bindable, true, | |
57 reason: 'on-barbaz event should be bound'); | |
58 | |
59 expect(binding.value, '{{ barBazHandler }}', | |
60 reason: 'event bindings use the string as value'); | |
61 | |
62 fooBar.fireFoo(123); | |
63 fooBar.fireBarBaz(42); | |
64 fooBar.fireFoo(777); | |
65 | |
66 final events = testComp.events; | |
67 expect(events.length, 3); | |
68 expect(events.map((e) => e[0]), ['foo', 'barbaz', 'foo']); | |
69 expect(events.map((e) => e[1].detail), [123, 42, 777]); | |
70 }); | |
71 })); | |
72 } | |
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