1 // Copyright 2014 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 "content/renderer/compositor_bindings/web_content_layer_impl.h"
6
7 #include "cc/layers/content_layer.h"
8 #include "cc/layers/picture_layer.h"
9 #include "third_party/WebKit/public/platform/WebContentLayerClient.h"
10 #include "third_party/WebKit/public/platform/WebFloatPoint.h"
11 #include "third_party/WebKit/public/platform/WebFloatRect.h"
12 #include "third_party/WebKit/public/platform/WebRect.h"
13 #include "third_party/WebKit/public/platform/WebSize.h"
14 #include "third_party/skia/include/utils/SkMatrix44.h"
15
16 using cc::ContentLayer;
17 using cc::PictureLayer;
18
19 namespace content {
20
WebContentLayerImpl(blink::WebContentLayerClient * client)21 WebContentLayerImpl::WebContentLayerImpl(blink::WebContentLayerClient* client)
22 : client_(client), ignore_lcd_text_change_(false) {
23 if (WebLayerImpl::UsingPictureLayer())
24 layer_ = make_scoped_ptr(new WebLayerImpl(PictureLayer::Create(this)));
25 else
26 layer_ = make_scoped_ptr(new WebLayerImpl(ContentLayer::Create(this)));
27 layer_->layer()->SetIsDrawable(true);
28 can_use_lcd_text_ = layer_->layer()->can_use_lcd_text();
29 }
30
~WebContentLayerImpl()31 WebContentLayerImpl::~WebContentLayerImpl() {
32 if (WebLayerImpl::UsingPictureLayer())
33 static_cast<PictureLayer*>(layer_->layer())->ClearClient();
34 else
35 static_cast<ContentLayer*>(layer_->layer())->ClearClient();
36 }
37
layer()38 blink::WebLayer* WebContentLayerImpl::layer() {
39 return layer_.get();
40 }
41
setDoubleSided(bool double_sided)42 void WebContentLayerImpl::setDoubleSided(bool double_sided) {
43 layer_->layer()->SetDoubleSided(double_sided);
44 }
45
setDrawCheckerboardForMissingTiles(bool enable)46 void WebContentLayerImpl::setDrawCheckerboardForMissingTiles(bool enable) {
47 layer_->layer()->SetDrawCheckerboardForMissingTiles(enable);
48 }
49
PaintContents(SkCanvas * canvas,const gfx::Rect & clip,gfx::RectF * opaque,ContentLayerClient::GraphicsContextStatus graphics_context_status)50 void WebContentLayerImpl::PaintContents(
51 SkCanvas* canvas,
52 const gfx::Rect& clip,
53 gfx::RectF* opaque,
54 ContentLayerClient::GraphicsContextStatus graphics_context_status) {
55 if (!client_)
56 return;
57
58 blink::WebFloatRect web_opaque;
59 client_->paintContents(
60 canvas,
61 clip,
62 can_use_lcd_text_,
63 web_opaque,
64 graphics_context_status == ContentLayerClient::GRAPHICS_CONTEXT_ENABLED
65 ? blink::WebContentLayerClient::GraphicsContextEnabled
66 : blink::WebContentLayerClient::GraphicsContextDisabled);
67 *opaque = web_opaque;
68 }
69
DidChangeLayerCanUseLCDText()70 void WebContentLayerImpl::DidChangeLayerCanUseLCDText() {
71 // It is important to make this comparison because the LCD text status
72 // here can get out of sync with that in the layer.
73 if (can_use_lcd_text_ == layer_->layer()->can_use_lcd_text())
74 return;
75
76 // LCD text cannot be enabled once disabled.
77 if (layer_->layer()->can_use_lcd_text() && ignore_lcd_text_change_)
78 return;
79
80 can_use_lcd_text_ = layer_->layer()->can_use_lcd_text();
81 ignore_lcd_text_change_ = true;
82 layer_->invalidate();
83 }
84
FillsBoundsCompletely() const85 bool WebContentLayerImpl::FillsBoundsCompletely() const {
86 return false;
87 }
88
89 } // namespace content
90
91