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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "core/paint/PaintLayerScrollableAreaTest.h" | 5 #include "core/paint/PaintLayerScrollableAreaTest.h" |
6 | 6 |
7 #include "platform/graphics/GraphicsLayer.h" | 7 #include "platform/graphics/GraphicsLayer.h" |
8 | 8 |
9 namespace blink { | 9 namespace blink { |
10 | 10 |
11 TEST_F(PaintLayerScrollableAreaTest, ShouldPaintBackgroundOntoScrollingContentsL
ayer) | 11 TEST_F(PaintLayerScrollableAreaTest, ShouldPaintBackgroundOntoScrollingContentsL
ayer) |
12 { | 12 { |
13 document().frame()->settings()->setPreferCompositingToLCDTextEnabled(true); | 13 document().frame()->settings()->setPreferCompositingToLCDTextEnabled(true); |
14 setBodyInnerHTML( | 14 setBodyInnerHTML( |
15 "<style>.scroller { overflow: scroll; will-change: transform; width: 300
px; height: 300px;} .spacer { height: 1000px; }</style>" | 15 "<style>" |
| 16 ".scroller { overflow: scroll; will-change: transform; width: 300px; hei
ght: 300px;} .spacer { height: 1000px; }" |
| 17 "#scroller13::-webkit-scrollbar { width: 13px; height: 13px;}" |
| 18 "</style>" |
16 "<div id='scroller1' class='scroller' style='background: white local;'>" | 19 "<div id='scroller1' class='scroller' style='background: white local;'>" |
17 " <div id='negative-composited-child' style='background-color: red; w
idth: 1px; height: 1px; position: absolute; backface-visibility: hidden; z-index
: -1'></div>" | 20 " <div id='negative-composited-child' style='background-color: red; w
idth: 1px; height: 1px; position: absolute; backface-visibility: hidden; z-index
: -1'></div>" |
18 " <div class='spacer'></div>" | 21 " <div class='spacer'></div>" |
19 "</div>" | 22 "</div>" |
20 "<div id='scroller2' class='scroller' style='background: white content-b
ox; padding: 10px;'><div class='spacer'></div></div>" | 23 "<div id='scroller2' class='scroller' style='background: white content-b
ox; padding: 10px;'><div class='spacer'></div></div>" |
21 "<div id='scroller3' class='scroller' style='background: white local con
tent-box; padding: 10px;'><div class='spacer'></div></div>" | 24 "<div id='scroller3' class='scroller' style='background: white local con
tent-box; padding: 10px;'><div class='spacer'></div></div>" |
22 "<div id='scroller4' class='scroller' style='background: url(data:image/
png;base64,iVBORw0KGgoAAAANSUhEUg), white local;'><div class='spacer'></div></di
v>" | 25 "<div id='scroller4' class='scroller' style='background: url(data:image/
png;base64,iVBORw0KGgoAAAANSUhEUg), white local;'><div class='spacer'></div></di
v>" |
23 "<div id='scroller5' class='scroller' style='background: url(data:image/
png;base64,iVBORw0KGgoAAAANSUhEUg) local, white local;'><div class='spacer'></di
v></div>" | 26 "<div id='scroller5' class='scroller' style='background: url(data:image/
png;base64,iVBORw0KGgoAAAANSUhEUg) local, white local;'><div class='spacer'></di
v></div>" |
24 "<div id='scroller6' class='scroller' style='background: url(data:image/
png;base64,iVBORw0KGgoAAAANSUhEUg) local, white padding-box; padding: 10px;'><di
v class='spacer'></div></div>" | 27 "<div id='scroller6' class='scroller' style='background: url(data:image/
png;base64,iVBORw0KGgoAAAANSUhEUg) local, white padding-box; padding: 10px;'><di
v class='spacer'></div></div>" |
25 "<div id='scroller7' class='scroller' style='background: url(data:image/
png;base64,iVBORw0KGgoAAAANSUhEUg) local, white content-box; padding: 10px;'><di
v class='spacer'></div></div>" | 28 "<div id='scroller7' class='scroller' style='background: url(data:image/
png;base64,iVBORw0KGgoAAAANSUhEUg) local, white content-box; padding: 10px;'><di
v class='spacer'></div></div>" |
| 29 "<div id='scroller8' class='scroller' style='background: white border-bo
x;'><div class='spacer'></div></div>" |
| 30 "<div id='scroller9' class='scroller' style='background: white border-bo
x; border: 10px solid black;'><div class='spacer'></div></div>" |
| 31 "<div id='scroller10' class='scroller' style='background: white border-b
ox; border: 10px solid rgba(0, 0, 0, 0.5);'><div class='spacer'></div></div>" |
| 32 "<div id='scroller11' class='scroller' style='background: white content-
box;'><div class='spacer'></div></div>" |
| 33 "<div id='scroller12' class='scroller' style='background: white content-
box; padding: 10px;'><div class='spacer'></div></div>" |
| 34 "<div id='scroller13' class='scroller' style='background: white border-b
ox;'><div class='spacer'></div></div>" |
| 35 "<div id='scroller14' class='scroller' style='background: white; border:
1px solid black; outline: 1px solid blue; outline-offset: -1px;'><div class='sp
acer'></div></div>" |
| 36 "<div id='scroller15' class='scroller' style='background: white; border:
1px solid black; outline: 1px solid blue; outline-offset: -2px;'><div class='sp
acer'></div></div>" |
26 ); | 37 ); |
27 | 38 |
28 // First scroller cannot paint background into scrolling contents layer beca
use it has a negative z-index child. | 39 // #scroller1 cannot paint background into scrolling contents layer because
it has a negative z-index child. |
29 EXPECT_FALSE(shouldPaintBackgroundOntoScrollingContentsLayer("scroller1")); | 40 EXPECT_FALSE(shouldPaintBackgroundOntoScrollingContentsLayer("scroller1")); |
30 | 41 |
31 // Second scroller cannot paint background into scrolling contents layer bec
ause it has a content-box clip without local attachment. | 42 // #scroller2 cannot paint background into scrolling contents layer because
it has a content-box clip without local attachment. |
32 EXPECT_FALSE(shouldPaintBackgroundOntoScrollingContentsLayer("scroller2")); | 43 EXPECT_FALSE(shouldPaintBackgroundOntoScrollingContentsLayer("scroller2")); |
33 | 44 |
34 // Third scroller can paint background into scrolling contents layer. | 45 // #scroller3 can paint background into scrolling contents layer. |
35 EXPECT_TRUE(shouldPaintBackgroundOntoScrollingContentsLayer("scroller3")); | 46 EXPECT_TRUE(shouldPaintBackgroundOntoScrollingContentsLayer("scroller3")); |
36 | 47 |
37 // Fourth scroller cannot paint background into scrolling contents layer bec
ause the background image is not locally attached. | 48 // #scroller4 cannot paint background into scrolling contents layer because
the background image is not locally attached. |
38 EXPECT_FALSE(shouldPaintBackgroundOntoScrollingContentsLayer("scroller4")); | 49 EXPECT_FALSE(shouldPaintBackgroundOntoScrollingContentsLayer("scroller4")); |
39 | 50 |
40 // Fifth scroller can paint background into scrolling contents layer because
both the image and color are locally attached. | 51 // #scroller5 can paint background into scrolling contents layer because bot
h the image and color are locally attached. |
41 EXPECT_TRUE(shouldPaintBackgroundOntoScrollingContentsLayer("scroller5")); | 52 EXPECT_TRUE(shouldPaintBackgroundOntoScrollingContentsLayer("scroller5")); |
42 | 53 |
43 // Sixth scroller can paint background into scrolling contents layer because
the image is locally attached and even though | 54 // #scroller6 can paint background into scrolling contents layer because the
image is locally attached and even though |
44 // the color is not, it is filled to the padding box so it will be drawn the
same as a locally attached background. | 55 // the color is not, it is filled to the padding box so it will be drawn the
same as a locally attached background. |
45 EXPECT_TRUE(shouldPaintBackgroundOntoScrollingContentsLayer("scroller6")); | 56 EXPECT_TRUE(shouldPaintBackgroundOntoScrollingContentsLayer("scroller6")); |
46 | 57 |
47 // Seventh scroller cannot paint background into scrolling contents layer be
cause the color is filled to the content | 58 // #scroller7 cannot paint background into scrolling contents layer because
the color is filled to the content |
48 // box and we have padding so it is not equivalent to a locally attached bac
kground. | 59 // box and we have padding so it is not equivalent to a locally attached bac
kground. |
49 EXPECT_FALSE(shouldPaintBackgroundOntoScrollingContentsLayer("scroller7")); | 60 EXPECT_FALSE(shouldPaintBackgroundOntoScrollingContentsLayer("scroller7")); |
| 61 |
| 62 // #scroller8 can paint background into scrolling contents layer because its
border-box is equivalent to its |
| 63 // padding box since it has no border. |
| 64 EXPECT_TRUE(shouldPaintBackgroundOntoScrollingContentsLayer("scroller8")); |
| 65 |
| 66 // #scroller9 can paint background into scrolling contents layer because its
border is opaque so it completely |
| 67 // covers the background outside of the padding-box. |
| 68 EXPECT_TRUE(shouldPaintBackgroundOntoScrollingContentsLayer("scroller9")); |
| 69 |
| 70 // #scroller10 cannot paint background into scrolling contents layer because
its border is partially transparent |
| 71 // so the background must be drawn to the border-box edges. |
| 72 EXPECT_FALSE(shouldPaintBackgroundOntoScrollingContentsLayer("scroller10")); |
| 73 |
| 74 // #scroller11 can paint background into scrolling contents layer because it
s content-box is equivalent to its |
| 75 // padding box since it has no padding. |
| 76 EXPECT_TRUE(shouldPaintBackgroundOntoScrollingContentsLayer("scroller11")); |
| 77 |
| 78 // #scroller12 cannot paint background into scrolling contents layer because
it has padding so its content-box |
| 79 // is not equivalent to its padding-box. |
| 80 EXPECT_FALSE(shouldPaintBackgroundOntoScrollingContentsLayer("scroller12")); |
| 81 |
| 82 // #scroller13 cannot paint background into scrolling contents layer because
it has a custom |
| 83 // scrollbar which the background may need to draw under. |
| 84 EXPECT_FALSE(shouldPaintBackgroundOntoScrollingContentsLayer("scroller13")); |
| 85 |
| 86 // #scroller14 can paint background into scrolling contents layer because th
e outline is drawn outside the |
| 87 // padding box. |
| 88 EXPECT_TRUE(shouldPaintBackgroundOntoScrollingContentsLayer("scroller14")); |
| 89 |
| 90 // #scroller15 cannot paint background into scrolling contents layer because
the outline is drawn inside |
| 91 // the padding box. |
| 92 EXPECT_FALSE(shouldPaintBackgroundOntoScrollingContentsLayer("scroller15")); |
50 } | 93 } |
51 | 94 |
52 TEST_F(PaintLayerScrollableAreaTest, OpaqueLayersPromoted) | 95 TEST_F(PaintLayerScrollableAreaTest, OpaqueLayersPromoted) |
53 { | 96 { |
54 RuntimeEnabledFeatures::setCompositeOpaqueScrollersEnabled(true); | 97 RuntimeEnabledFeatures::setCompositeOpaqueScrollersEnabled(true); |
55 | 98 |
56 setBodyInnerHTML( | 99 setBodyInnerHTML( |
57 "<style>" | 100 "<style>" |
58 "#scroller { overflow: scroll; height: 200px; width: 200px; background:
white local content-box; border: 10px solid rgba(0, 255, 0, 0.5); }" | 101 "#scroller { overflow: scroll; height: 200px; width: 200px; background:
white local content-box; border: 10px solid rgba(0, 255, 0, 0.5); }" |
59 "#scrolled { height: 300px; }" | 102 "#scrolled { height: 300px; }" |
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144 paintLayer = toLayoutBoxModelObject(scroller->layoutObject())->layer(); | 187 paintLayer = toLayoutBoxModelObject(scroller->layoutObject())->layer(); |
145 ASSERT_TRUE(paintLayer); | 188 ASSERT_TRUE(paintLayer); |
146 EXPECT_TRUE(paintLayer->needsCompositedScrolling()); | 189 EXPECT_TRUE(paintLayer->needsCompositedScrolling()); |
147 EXPECT_TRUE(paintLayer->graphicsLayerBacking()); | 190 EXPECT_TRUE(paintLayer->graphicsLayerBacking()); |
148 ASSERT_TRUE(paintLayer->graphicsLayerBackingForScrolling()); | 191 ASSERT_TRUE(paintLayer->graphicsLayerBackingForScrolling()); |
149 EXPECT_TRUE(paintLayer->graphicsLayerBackingForScrolling()->contentsOpaque()
); | 192 EXPECT_TRUE(paintLayer->graphicsLayerBackingForScrolling()->contentsOpaque()
); |
150 } | 193 } |
151 | 194 |
152 | 195 |
153 } | 196 } |
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