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 "cc/playback/display_item_list_settings.h"
  11 #include "third_party/WebKit/public/platform/WebContentLayerClient.h"
  12 #include "third_party/WebKit/public/platform/WebFloatPoint.h"
  13 #include "third_party/WebKit/public/platform/WebFloatRect.h"
  14 #include "third_party/WebKit/public/platform/WebRect.h"
  15 #include "third_party/WebKit/public/platform/WebSize.h"
  16 #include "third_party/skia/include/utils/SkMatrix44.h"
  17
  18 using cc::ContentLayer;
  19 using cc::PictureLayer;
  20
  21 namespace cc_blink {
  22
  23 static blink::WebContentLayerClient::PaintingControlSetting
  24 PaintingControlToWeb(
  25     cc::ContentLayerClient::PaintingControlSetting painting_control) {
  26   switch (painting_control) {
  27     case cc::ContentLayerClient::PAINTING_BEHAVIOR_NORMAL:
  28       return blink::WebContentLayerClient::PaintDefaultBehavior;
  29     case cc::ContentLayerClient::DISPLAY_LIST_CONSTRUCTION_DISABLED:
  30       return blink::WebContentLayerClient::DisplayListConstructionDisabled;
  31     case cc::ContentLayerClient::DISPLAY_LIST_CACHING_DISABLED:
  32       return blink::WebContentLayerClient::DisplayListCachingDisabled;
  33     case cc::ContentLayerClient::DISPLAY_LIST_PAINTING_DISABLED:
  34       return blink::WebContentLayerClient::DisplayListPaintingDisabled;
  35   }
  36   NOTREACHED();
  37   return blink::WebContentLayerClient::PaintDefaultBehavior;
  38 }
  39
  40 WebContentLayerImpl::WebContentLayerImpl(blink::WebContentLayerClient* client)
  41     : client_(client) {
  42   if (WebLayerImpl::UsingPictureLayer())
  43     layer_ = make_scoped_ptr(new WebLayerImpl(
  44         PictureLayer::Create(WebLayerImpl::LayerSettings(), this)));
  45   else
  46     layer_ = make_scoped_ptr(new WebLayerImpl(
  47         ContentLayer::Create(WebLayerImpl::LayerSettings(), this)));
  48   layer_->layer()->SetIsDrawable(true);
  49 }
  50
  51 WebContentLayerImpl::~WebContentLayerImpl() {
  52   if (WebLayerImpl::UsingPictureLayer())
  53     static_cast<PictureLayer*>(layer_->layer())->ClearClient();
  54   else
  55     static_cast<ContentLayer*>(layer_->layer())->ClearClient();
  56 }
  57
  58 blink::WebLayer* WebContentLayerImpl::layer() {
  59   return layer_.get();
  60 }
  61
  62 void WebContentLayerImpl::setDoubleSided(bool double_sided) {
  63   layer_->layer()->SetDoubleSided(double_sided);
  64 }
  65
  66 void WebContentLayerImpl::setDrawCheckerboardForMissingTiles(bool enable) {
  67   layer_->layer()->SetDrawCheckerboardForMissingTiles(enable);
  68 }
  69
  70 void WebContentLayerImpl::PaintContents(
  71     SkCanvas* canvas,
  72     const gfx::Rect& clip,
  73     cc::ContentLayerClient::PaintingControlSetting painting_control) {
  74   if (!client_)
  75     return;
  76
  77   client_->paintContents(canvas, clip, PaintingControlToWeb(painting_control));
  78 }
  79
  80 scoped_refptr<cc::DisplayItemList>
  81 WebContentLayerImpl::PaintContentsToDisplayList(
  82     const gfx::Rect& clip,
  83     cc::ContentLayerClient::PaintingControlSetting painting_control) {
  84   cc::DisplayItemListSettings settings;
  85   settings.use_cached_picture = true;
  86
  87   scoped_refptr<cc::DisplayItemList> display_list =
  88       cc::DisplayItemList::Create(clip, settings);
  89   if (client_) {
  90     WebDisplayItemListImpl list(display_list.get());
  91     client_->paintContents(&list, clip, PaintingControlToWeb(painting_control));
  92   }
  93   display_list->Finalize();
  94   return display_list;
  95 }
  96
  97 bool WebContentLayerImpl::FillsBoundsCompletely() const {
  98   return false;
  99 }
 100
 101 }  // namespace cc_blink