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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "cc/blink/web_content_layer_impl.h"
#include <stddef.h>
#include "base/command_line.h"
#include "cc/base/switches.h"
#include "cc/blink/web_display_item_list_impl.h"
#include "cc/layers/layer_settings.h"
#include "cc/layers/picture_layer.h"
#include "cc/playback/display_item_list_settings.h"
#include "third_party/WebKit/public/platform/WebContentLayerClient.h"
#include "third_party/WebKit/public/platform/WebFloatPoint.h"
#include "third_party/WebKit/public/platform/WebFloatRect.h"
#include "third_party/WebKit/public/platform/WebRect.h"
#include "third_party/WebKit/public/platform/WebSize.h"
#include "third_party/skia/include/utils/SkMatrix44.h"
using cc::PictureLayer;
namespace cc_blink {
static bool UseCachedPictureRaster() {
static bool use = !base::CommandLine::ForCurrentProcess()->HasSwitch(
cc::switches::kDisableCachedPictureRaster);
return use;
}
static blink::WebContentLayerClient::PaintingControlSetting
PaintingControlToWeb(
cc::ContentLayerClient::PaintingControlSetting painting_control) {
switch (painting_control) {
case cc::ContentLayerClient::PAINTING_BEHAVIOR_NORMAL:
return blink::WebContentLayerClient::PaintDefaultBehavior;
case cc::ContentLayerClient::PAINTING_BEHAVIOR_NORMAL_FOR_TEST:
return blink::WebContentLayerClient::PaintDefaultBehaviorForTest;
case cc::ContentLayerClient::DISPLAY_LIST_CONSTRUCTION_DISABLED:
return blink::WebContentLayerClient::DisplayListConstructionDisabled;
case cc::ContentLayerClient::DISPLAY_LIST_CACHING_DISABLED:
return blink::WebContentLayerClient::DisplayListCachingDisabled;
case cc::ContentLayerClient::DISPLAY_LIST_PAINTING_DISABLED:
return blink::WebContentLayerClient::DisplayListPaintingDisabled;
case cc::ContentLayerClient::SUBSEQUENCE_CACHING_DISABLED:
return blink::WebContentLayerClient::SubsequenceCachingDisabled;
}
NOTREACHED();
return blink::WebContentLayerClient::PaintDefaultBehavior;
}
WebContentLayerImpl::WebContentLayerImpl(blink::WebContentLayerClient* client)
: client_(client) {
layer_ = make_scoped_ptr(
new WebLayerImpl(PictureLayer::Create(cc::LayerSettings(), this)));
layer_->layer()->SetIsDrawable(true);
}
WebContentLayerImpl::~WebContentLayerImpl() {
static_cast<PictureLayer*>(layer_->layer())->ClearClient();
}
blink::WebLayer* WebContentLayerImpl::layer() {
return layer_.get();
}
gfx::Rect WebContentLayerImpl::PaintableRegion() {
return client_->paintableRegion();
}
scoped_refptr<cc::DisplayItemList>
WebContentLayerImpl::PaintContentsToDisplayList(
cc::ContentLayerClient::PaintingControlSetting painting_control) {
cc::DisplayItemListSettings settings;
settings.use_cached_picture = UseCachedPictureRaster();
scoped_refptr<cc::DisplayItemList> display_list =
cc::DisplayItemList::Create(PaintableRegion(), settings);
if (client_) {
WebDisplayItemListImpl list(display_list.get());
client_->paintContents(&list, PaintingControlToWeb(painting_control));
}
display_list->Finalize();
return display_list;
}
bool WebContentLayerImpl::FillsBoundsCompletely() const {
return false;
}
size_t WebContentLayerImpl::GetApproximateUnsharedMemoryUsage() const {
return client_->approximateUnsharedMemoryUsage();
}
} // namespace cc_blink
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