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1 // Copyright 2016 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 #include "core/animation/SizeListPropertyFunctions.h" | |
6 | |
7 #include "core/style/ComputedStyle.h" | |
8 | |
9 namespace blink { | |
10 | |
11 static const FillLayer* getFillLayer(CSSPropertyID property, const ComputedStyle & style) | |
12 { | |
13 switch (property) { | |
14 case CSSPropertyBackgroundSize: | |
15 return &style.backgroundLayers(); | |
16 case CSSPropertyWebkitMaskSize: | |
17 return &style.maskLayers(); | |
18 default: | |
19 NOTREACHED(); | |
20 return nullptr; | |
21 } | |
22 } | |
23 | |
24 static FillLayer* accessFillLayer(CSSPropertyID property, ComputedStyle& style) | |
25 { | |
26 switch (property) { | |
27 case CSSPropertyBackgroundSize: | |
28 return &style.accessBackgroundLayers(); | |
29 case CSSPropertyWebkitMaskSize: | |
30 return &style.accessMaskLayers(); | |
31 default: | |
32 NOTREACHED(); | |
33 return nullptr; | |
34 } | |
35 } | |
36 | |
37 SizeList SizeListPropertyFunctions::getInitialSizeList(CSSPropertyID property) | |
38 { | |
39 return getSizeList(property, ComputedStyle::initialStyle()); | |
40 } | |
41 | |
42 SizeList SizeListPropertyFunctions::getSizeList(CSSPropertyID property, const Co mputedStyle& style) | |
43 { | |
44 SizeList result; | |
45 for (const FillLayer* fillLayer = getFillLayer(property, style); fillLayer & & fillLayer->isSizeSet(); fillLayer = fillLayer->next()) | |
Eric Willigers
2016/08/31 01:47:06
We stop when we hit a fillLayer with size not set,
alancutter (OOO until 2018)
2016/09/05 07:44:27
Yes. Unset/nullptr indicates the end of the list.
| |
46 result.append(fillLayer->size()); | |
47 return result; | |
48 } | |
49 | |
50 void SizeListPropertyFunctions::setSizeList(CSSPropertyID property, ComputedStyl e& style, SizeList& sizeList) | |
51 { | |
52 FillLayer* fillLayer = accessFillLayer(property, style); | |
53 FillLayer* prev = nullptr; | |
54 for (const FillSize& size : sizeList) { | |
55 if (!fillLayer) | |
56 fillLayer = prev->ensureNext(); | |
57 fillLayer->setSize(size); | |
58 prev = fillLayer; | |
59 fillLayer = fillLayer->next(); | |
60 } | |
61 while (fillLayer) { | |
62 fillLayer->clearSize(); | |
63 fillLayer = fillLayer->next(); | |
64 } | |
65 } | |
66 | |
67 } // namespace blink | |
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