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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 "webkit/renderer/compositor_bindings/web_layer_impl_fixed_bounds.h" | 5 #include "content/renderer/compositor_bindings/web_layer_impl_fixed_bounds.h" |
6 | 6 |
7 #include "cc/layers/layer.h" | 7 #include "cc/layers/layer.h" |
8 #include "third_party/WebKit/public/platform/WebFloatPoint.h" | 8 #include "third_party/WebKit/public/platform/WebFloatPoint.h" |
9 #include "third_party/WebKit/public/platform/WebSize.h" | 9 #include "third_party/WebKit/public/platform/WebSize.h" |
10 #include "third_party/skia/include/utils/SkMatrix44.h" | 10 #include "third_party/skia/include/utils/SkMatrix44.h" |
11 | 11 |
12 using cc::Layer; | 12 using cc::Layer; |
13 | 13 |
14 namespace webkit { | 14 namespace content { |
15 | 15 |
16 WebLayerImplFixedBounds::WebLayerImplFixedBounds() { | 16 WebLayerImplFixedBounds::WebLayerImplFixedBounds() { |
17 } | 17 } |
18 | 18 |
19 WebLayerImplFixedBounds::WebLayerImplFixedBounds(scoped_refptr<Layer> layer) | 19 WebLayerImplFixedBounds::WebLayerImplFixedBounds(scoped_refptr<Layer> layer) |
20 : WebLayerImpl(layer) { | 20 : WebLayerImpl(layer) { |
21 } | 21 } |
22 | 22 |
23 | |
24 WebLayerImplFixedBounds::~WebLayerImplFixedBounds() { | 23 WebLayerImplFixedBounds::~WebLayerImplFixedBounds() { |
25 } | 24 } |
26 | 25 |
27 void WebLayerImplFixedBounds::invalidateRect(const blink::WebFloatRect& rect) { | 26 void WebLayerImplFixedBounds::invalidateRect(const blink::WebFloatRect& rect) { |
28 // Partial invalidations seldom occur for such layers. | 27 // Partial invalidations seldom occur for such layers. |
29 // Simply invalidate the whole layer to avoid transformation of coordinates. | 28 // Simply invalidate the whole layer to avoid transformation of coordinates. |
30 invalidate(); | 29 invalidate(); |
31 } | 30 } |
32 | 31 |
33 void WebLayerImplFixedBounds::setAnchorPoint( | 32 void WebLayerImplFixedBounds::setAnchorPoint( |
34 const blink::WebFloatPoint& anchor_point) { | 33 const blink::WebFloatPoint& anchor_point) { |
35 if (anchor_point != this->anchorPoint()) { | 34 if (anchor_point != this->anchorPoint()) { |
36 layer_->SetAnchorPoint(anchor_point); | 35 layer_->SetAnchorPoint(anchor_point); |
37 UpdateLayerBoundsAndTransform(); | 36 UpdateLayerBoundsAndTransform(); |
38 } | 37 } |
39 } | 38 } |
40 | 39 |
41 void WebLayerImplFixedBounds::setBounds(const blink::WebSize& bounds) { | 40 void WebLayerImplFixedBounds::setBounds(const blink::WebSize& bounds) { |
42 if (original_bounds_ != gfx::Size(bounds)) { | 41 if (original_bounds_ != gfx::Size(bounds)) { |
43 original_bounds_ = bounds; | 42 original_bounds_ = bounds; |
44 UpdateLayerBoundsAndTransform(); | 43 UpdateLayerBoundsAndTransform(); |
45 } | 44 } |
46 } | 45 } |
47 | 46 |
48 blink::WebSize WebLayerImplFixedBounds::bounds() const { | 47 blink::WebSize WebLayerImplFixedBounds::bounds() const { |
49 return original_bounds_; | 48 return original_bounds_; |
50 } | 49 } |
51 | 50 |
52 void WebLayerImplFixedBounds::setTransform(const SkMatrix44& matrix) { | 51 void WebLayerImplFixedBounds::setTransform(const SkMatrix44& matrix) { |
53 gfx::Transform transform; | 52 gfx::Transform transform; |
54 transform.matrix() = matrix; | 53 transform.matrix() = matrix; |
(...skipping 17 matching lines...) Expand all Loading... |
72 original_transform_ = transform; | 71 original_transform_ = transform; |
73 UpdateLayerBoundsAndTransform(); | 72 UpdateLayerBoundsAndTransform(); |
74 } | 73 } |
75 } | 74 } |
76 | 75 |
77 void WebLayerImplFixedBounds::UpdateLayerBoundsAndTransform() { | 76 void WebLayerImplFixedBounds::UpdateLayerBoundsAndTransform() { |
78 if (fixed_bounds_.IsEmpty() || original_bounds_.IsEmpty() || | 77 if (fixed_bounds_.IsEmpty() || original_bounds_.IsEmpty() || |
79 fixed_bounds_ == original_bounds_ || | 78 fixed_bounds_ == original_bounds_ || |
80 // For now fall back to non-fixed bounds for non-zero anchor point. | 79 // For now fall back to non-fixed bounds for non-zero anchor point. |
81 // TODO(wangxianzhu): Support non-zero anchor point for fixed bounds. | 80 // TODO(wangxianzhu): Support non-zero anchor point for fixed bounds. |
82 anchorPoint().x || anchorPoint().y) { | 81 anchorPoint().x || |
| 82 anchorPoint().y) { |
83 layer_->SetBounds(original_bounds_); | 83 layer_->SetBounds(original_bounds_); |
84 layer_->SetTransform(original_transform_); | 84 layer_->SetTransform(original_transform_); |
85 return; | 85 return; |
86 } | 86 } |
87 | 87 |
88 layer_->SetBounds(fixed_bounds_); | 88 layer_->SetBounds(fixed_bounds_); |
89 | 89 |
90 // Apply bounds scale (bounds/fixed_bounds) over original transform. | 90 // Apply bounds scale (bounds/fixed_bounds) over original transform. |
91 gfx::Transform transform_with_bounds_scale(original_transform_); | 91 gfx::Transform transform_with_bounds_scale(original_transform_); |
92 float bounds_scale_x = | 92 float bounds_scale_x = |
93 static_cast<float>(original_bounds_.width()) / fixed_bounds_.width(); | 93 static_cast<float>(original_bounds_.width()) / fixed_bounds_.width(); |
94 float bounds_scale_y = | 94 float bounds_scale_y = |
95 static_cast<float>(original_bounds_.height()) / fixed_bounds_.height(); | 95 static_cast<float>(original_bounds_.height()) / fixed_bounds_.height(); |
96 transform_with_bounds_scale.Scale(bounds_scale_x, bounds_scale_y); | 96 transform_with_bounds_scale.Scale(bounds_scale_x, bounds_scale_y); |
97 layer_->SetTransform(transform_with_bounds_scale); | 97 layer_->SetTransform(transform_with_bounds_scale); |
98 } | 98 } |
99 | 99 |
100 } // namespace webkit | 100 } // namespace content |
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