cc/blink/web_content_layer_impl.cc

   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/blink/web_display_item_list_impl.h"
   8 #include "cc/layers/content_layer.h"
   9 #include "cc/layers/picture_layer.h"
  10 #include "third_party/WebKit/public/platform/WebContentLayerClient.h"
  11 #include "third_party/WebKit/public/platform/WebFloatPoint.h"
  12 #include "third_party/WebKit/public/platform/WebFloatRect.h"
  13 #include "third_party/WebKit/public/platform/WebRect.h"
  14 #include "third_party/WebKit/public/platform/WebSize.h"
  15 #include "third_party/skia/include/utils/SkMatrix44.h"
  16
  17 using cc::ContentLayer;
  18 using cc::PictureLayer;
  19
  20 namespace cc_blink {
  21
  22 static blink::WebContentLayerClient::PaintingControlSetting
  23 PaintingControlToWeb(
  24     cc::ContentLayerClient::PaintingControlSetting painting_control) {
  25   switch (painting_control) {
  26     case cc::ContentLayerClient::PAINTING_BEHAVIOR_NORMAL:
  27       return blink::WebContentLayerClient::PaintDefaultBehavior;
  28     case cc::ContentLayerClient::DISPLAY_LIST_CONSTRUCTION_DISABLED:
  29       return blink::WebContentLayerClient::DisplayListConstructionDisabled;
  30     case cc::ContentLayerClient::DISPLAY_LIST_CACHING_DISABLED:
  31       return blink::WebContentLayerClient::DisplayListCachingDisabled;
  32   }
  33   NOTREACHED();
  34   return blink::WebContentLayerClient::PaintDefaultBehavior;
  35 }
  36
  37 WebContentLayerImpl::WebContentLayerImpl(blink::WebContentLayerClient* client)
  38     : client_(client) {
  39   if (WebLayerImpl::UsingPictureLayer())
  40     layer_ = make_scoped_ptr(new WebLayerImpl(PictureLayer::Create(this)));
  41   else
  42     layer_ = make_scoped_ptr(new WebLayerImpl(ContentLayer::Create(this)));
  43   layer_->layer()->SetIsDrawable(true);
  44 }
  45
  46 WebContentLayerImpl::~WebContentLayerImpl() {
  47   if (WebLayerImpl::UsingPictureLayer())
  48     static_cast<PictureLayer*>(layer_->layer())->ClearClient();
  49   else
  50     static_cast<ContentLayer*>(layer_->layer())->ClearClient();
  51 }
  52
  53 blink::WebLayer* WebContentLayerImpl::layer() {
  54   return layer_.get();
  55 }
  56
  57 void WebContentLayerImpl::setDoubleSided(bool double_sided) {
  58   layer_->layer()->SetDoubleSided(double_sided);
  59 }
  60
  61 void WebContentLayerImpl::setDrawCheckerboardForMissingTiles(bool enable) {
  62   layer_->layer()->SetDrawCheckerboardForMissingTiles(enable);
  63 }
  64
  65 void WebContentLayerImpl::PaintContents(
  66     SkCanvas* canvas,
  67     const gfx::Rect& clip,
  68     cc::ContentLayerClient::PaintingControlSetting painting_control) {
  69   if (!client_)
  70     return;
  71
  72   client_->paintContents(canvas, clip, PaintingControlToWeb(painting_control));
  73 }
  74
  75 scoped_refptr<cc::DisplayItemList>
  76 WebContentLayerImpl::PaintContentsToDisplayList(
  77     const gfx::Rect& clip,
  78     cc::ContentLayerClient::PaintingControlSetting painting_control) {
  79   if (!client_)
  80     return cc::DisplayItemList::Create();
  81
  82   WebDisplayItemListImpl list;
  83   client_->paintContents(&list, clip, PaintingControlToWeb(painting_control));
  84   return list.ToDisplayItemList();
  85 }
  86
  87 bool WebContentLayerImpl::FillsBoundsCompletely() const {
  88   return false;
  89 }
  90
  91 }  // namespace cc_blink