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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 '../fn2.dart'; | |
6 import '../rendering/box.dart'; | |
7 import '../painting/shadows.dart'; | |
8 import '../theme2/colors.dart'; | |
9 import 'dart:sky' as sky; | |
10 import 'ink_well.dart'; | |
11 import 'material.dart'; | |
12 | |
13 // TODO(eseidel): This needs to change based on device size? | |
14 // http://www.google.com/design/spec/layout/metrics-keylines.html#metrics-keylin
es-keylines-spacing | |
15 const double _kSize = 56.0; | |
16 | |
17 class FloatingActionButton extends Component { | |
18 | |
19 FloatingActionButton({ Object key, this.content, this.level: 0 }) | |
20 : super(key: key); | |
21 | |
22 final UINode content; | |
23 final int level; | |
24 | |
25 UINode build() { | |
26 List<UINode> children = []; | |
27 | |
28 if (content != null) | |
29 children.add(content); | |
30 | |
31 return new Material( | |
32 content: new CustomPaint( | |
33 callback: (sky.Canvas canvas, Size size) { | |
34 const double radius = _kSize / 2.0; | |
35 sky.Paint paint = new sky.Paint()..color = Red[500]; | |
36 var builder = new ShadowDrawLooperBuilder() | |
37 ..addShadow(const sky.Size(0.0, 5.0), | |
38 const sky.Color(0x77000000), | |
39 5.0); | |
40 paint.setDrawLooper(builder.build()); | |
41 canvas.drawCircle(radius, radius, radius, paint); | |
42 }, | |
43 child: new ClipOval( | |
44 child: new Container( | |
45 width: _kSize, | |
46 height: _kSize, | |
47 child: new InkWell(children: children) | |
48 ) | |
49 ) | |
50 ), | |
51 level: level); | |
52 } | |
53 | |
54 } | |
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