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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2011, 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 part of layout; | 5 part of layout; |
6 | 6 |
7 /** The interface that the layout algorithms use to talk to the view. */ | 7 /** The interface that the layout algorithms use to talk to the view. */ |
8 abstract class Positionable { | 8 abstract class Positionable { |
9 ViewLayout get layout; | 9 ViewLayout get layout; |
10 | 10 |
11 /** Gets our custom CSS properties, as provided by the CSS preprocessor. */ | 11 /** Gets our custom CSS properties, as provided by the CSS preprocessor. */ |
12 Map<String, String> get customStyle; | 12 Map<String, String> get customStyle; |
13 | 13 |
14 /** Gets the root DOM used for layout. */ | 14 /** Gets the root DOM used for layout. */ |
15 Element get node; | 15 Element get node; |
16 | 16 |
17 /** Gets the collection of child views. */ | 17 /** Gets the collection of child views. */ |
18 Collection<Positionable> get childViews; | 18 Iterable<Positionable> get childViews; |
19 | 19 |
20 /** Causes a view to layout its children. */ | 20 /** Causes a view to layout its children. */ |
21 void doLayout(); | 21 void doLayout(); |
22 } | 22 } |
23 | 23 |
24 | 24 |
25 /** | 25 /** |
26 * Caches the layout parameters that were specified in CSS during a layout | 26 * Caches the layout parameters that were specified in CSS during a layout |
27 * computation. These values are immutable during a layout. | 27 * computation. These values are immutable during a layout. |
28 */ | 28 */ |
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227 // For an unset max-content size, use the actual size | 227 // For an unset max-content size, use the actual size |
228 return size; | 228 return size; |
229 } | 229 } |
230 if (style.endsWith('%')) { | 230 if (style.endsWith('%')) { |
231 num percent = double.parse(style.substring(0, style.length - 1)); | 231 num percent = double.parse(style.substring(0, style.length - 1)); |
232 return ((percent / 100) * parentSize).toInt(); | 232 return ((percent / 100) * parentSize).toInt(); |
233 } | 233 } |
234 return _toPixels(style); | 234 return _toPixels(style); |
235 } | 235 } |
236 } | 236 } |
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