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 "cc/blink/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 cc_blink { 20 WebContentLayerImpl(blink::WebContentLayerClient * client)21WebContentLayerImpl::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()31WebContentLayerImpl::~WebContentLayerImpl() { 32 if (WebLayerImpl::UsingPictureLayer()) 33 static_cast<PictureLayer*>(layer_->layer())->ClearClient(); 34 else 35 static_cast<ContentLayer*>(layer_->layer())->ClearClient(); 36 } 37 layer()38blink::WebLayer* WebContentLayerImpl::layer() { 39 return layer_.get(); 40 } 41 setDoubleSided(bool double_sided)42void WebContentLayerImpl::setDoubleSided(bool double_sided) { 43 layer_->layer()->SetDoubleSided(double_sided); 44 } 45 setDrawCheckerboardForMissingTiles(bool enable)46void WebContentLayerImpl::setDrawCheckerboardForMissingTiles(bool enable) { 47 layer_->layer()->SetDrawCheckerboardForMissingTiles(enable); 48 } 49 PaintContents(SkCanvas * canvas,const gfx::Rect & clip,ContentLayerClient::GraphicsContextStatus graphics_context_status)50void WebContentLayerImpl::PaintContents( 51 SkCanvas* canvas, 52 const gfx::Rect& clip, 53 ContentLayerClient::GraphicsContextStatus graphics_context_status) { 54 if (!client_) 55 return; 56 57 client_->paintContents( 58 canvas, 59 clip, 60 can_use_lcd_text_, 61 graphics_context_status == ContentLayerClient::GRAPHICS_CONTEXT_ENABLED 62 ? blink::WebContentLayerClient::GraphicsContextEnabled 63 : blink::WebContentLayerClient::GraphicsContextDisabled); 64 } 65 DidChangeLayerCanUseLCDText()66void WebContentLayerImpl::DidChangeLayerCanUseLCDText() { 67 // It is important to make this comparison because the LCD text status 68 // here can get out of sync with that in the layer. 69 if (can_use_lcd_text_ == layer_->layer()->can_use_lcd_text()) 70 return; 71 72 // LCD text cannot be enabled once disabled. 73 if (layer_->layer()->can_use_lcd_text() && ignore_lcd_text_change_) 74 return; 75 76 can_use_lcd_text_ = layer_->layer()->can_use_lcd_text(); 77 ignore_lcd_text_change_ = true; 78 layer_->invalidate(); 79 } 80 FillsBoundsCompletely() const81bool WebContentLayerImpl::FillsBoundsCompletely() const { 82 return false; 83 } 84 85 } // namespace cc_blink 86