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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 import '../fn.dart'; | |
| 6 import '../layout.dart'; | |
| 7 import 'dart:collection'; | |
| 8 import 'dart:sky' as sky; | |
| 9 import 'ink_splash.dart'; | |
| 10 import 'scrollable.dart'; | |
| 11 | |
| 12 class InkWell extends Component implements ScrollClient { | |
| 13 static final Style _containmentStyleHack = new Style(''' | |
| 14 align-items: center; | |
| 15 transform: translateX(0);'''); | |
| 16 | |
| 17 LinkedHashSet<SplashController> _splashes; | |
| 18 | |
| 19 String inlineStyle; | |
| 20 List<UINode> children; | |
| 21 | |
| 22 InkWell({ Object key, this.inlineStyle, this.children }) | |
| 23 : super(key: key) { | |
| 24 onDidUnmount(() { | |
| 25 _cancelSplashes(null); | |
| 26 }); | |
| 27 } | |
| 28 | |
| 29 UINode build() { | |
| 30 List<UINode> childrenIncludingSplashes = []; | |
| 31 | |
| 32 if (_splashes != null) { | |
| 33 childrenIncludingSplashes.addAll( | |
| 34 _splashes.map((s) => new InkSplash(s.onStyleChanged))); | |
| 35 } | |
| 36 | |
| 37 if (children != null) | |
| 38 childrenIncludingSplashes.addAll(children); | |
| 39 | |
| 40 return new EventListenerNode( | |
| 41 new FlexContainer( | |
| 42 direction: FlexDirection.Row, | |
| 43 style: _containmentStyleHack, | |
| 44 inlineStyle: inlineStyle, | |
| 45 children: childrenIncludingSplashes), | |
| 46 onGestureTapDown: _startSplash, | |
| 47 onGestureTap: _confirmSplash | |
| 48 ); | |
| 49 } | |
| 50 | |
| 51 void _startSplash(sky.GestureEvent event) { | |
| 52 setState(() { | |
| 53 if (_splashes == null) | |
| 54 _splashes = new LinkedHashSet<SplashController>(); | |
| 55 var splash; | |
| 56 var root = getRoot(); | |
| 57 splash = new SplashController(root.rect, event.x, event.y, | |
| 58 pointer: event.primaryPointer, | |
| 59 onDone: () { _splashDone(splash); }); | |
| 60 _splashes.add(splash); | |
| 61 UINode node = parent; | |
| 62 while (node != null) { | |
| 63 if (node is Scrollable) | |
| 64 node.registerScrollClient(this); | |
| 65 node = node.parent; | |
| 66 } | |
| 67 }); | |
| 68 } | |
| 69 | |
| 70 bool ancestorScrolled(Scrollable ancestor) { | |
| 71 _abortSplashes(); | |
| 72 return false; | |
| 73 } | |
| 74 | |
| 75 void handleRemoved() { | |
| 76 UINode node = parent; | |
| 77 while (node != null) { | |
| 78 if (node is Scrollable) | |
| 79 node.unregisterScrollClient(this); | |
| 80 node = node.parent; | |
| 81 } | |
| 82 super.handleRemoved(); | |
| 83 } | |
| 84 | |
| 85 void _confirmSplash(sky.GestureEvent event) { | |
| 86 if (_splashes == null) | |
| 87 return; | |
| 88 _splashes.where((splash) => splash.pointer == event.primaryPointer) | |
| 89 .forEach((splash) { splash.confirm(); }); | |
| 90 } | |
| 91 | |
| 92 void _abortSplashes() { | |
| 93 if (_splashes == null) | |
| 94 return; | |
| 95 setState(() { | |
| 96 _splashes.forEach((s) { s.abort(); }); | |
| 97 }); | |
| 98 } | |
| 99 | |
| 100 void _cancelSplashes(sky.Event event) { | |
| 101 if (_splashes == null) | |
| 102 return; | |
| 103 setState(() { | |
| 104 var splashes = _splashes; | |
| 105 _splashes = null; | |
| 106 splashes.forEach((s) { s.cancel(); }); | |
| 107 }); | |
| 108 } | |
| 109 | |
| 110 void _splashDone(SplashController splash) { | |
| 111 if (_splashes == null) | |
| 112 return; | |
| 113 setState(() { | |
| 114 _splashes.remove(splash); | |
| 115 if (_splashes.length == 0) | |
| 116 _splashes = null; | |
| 117 }); | |
| 118 } | |
| 119 } | |
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Chromium Code Reviews
Issue 1132063007:
Rationalize Dart mojo and sky package structure (Closed)
Base URL: https://github.com/domokit/mojo.git@master