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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 "cc/layers/content_layer.h"
#include "cc/layers/picture_layer.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::ContentLayer;
using cc::PictureLayer;
namespace cc_blink {
WebContentLayerImpl::WebContentLayerImpl(blink::WebContentLayerClient* client)
: client_(client), ignore_lcd_text_change_(false) {
if (WebLayerImpl::UsingPictureLayer())
layer_ = make_scoped_ptr(new WebLayerImpl(PictureLayer::Create(this)));
else
layer_ = make_scoped_ptr(new WebLayerImpl(ContentLayer::Create(this)));
layer_->layer()->SetIsDrawable(true);
can_use_lcd_text_ = layer_->layer()->can_use_lcd_text();
}
WebContentLayerImpl::~WebContentLayerImpl() {
if (WebLayerImpl::UsingPictureLayer())
static_cast<PictureLayer*>(layer_->layer())->ClearClient();
else
static_cast<ContentLayer*>(layer_->layer())->ClearClient();
}
blink::WebLayer* WebContentLayerImpl::layer() {
return layer_.get();
}
void WebContentLayerImpl::setDoubleSided(bool double_sided) {
layer_->layer()->SetDoubleSided(double_sided);
}
void WebContentLayerImpl::setDrawCheckerboardForMissingTiles(bool enable) {
layer_->layer()->SetDrawCheckerboardForMissingTiles(enable);
}
void WebContentLayerImpl::PaintContents(
SkCanvas* canvas,
const gfx::Rect& clip,
gfx::RectF* opaque,
ContentLayerClient::GraphicsContextStatus graphics_context_status) {
if (!client_)
return;
blink::WebFloatRect web_opaque;
client_->paintContents(
canvas,
clip,
can_use_lcd_text_,
web_opaque,
graphics_context_status == ContentLayerClient::GRAPHICS_CONTEXT_ENABLED
? blink::WebContentLayerClient::GraphicsContextEnabled
: blink::WebContentLayerClient::GraphicsContextDisabled);
*opaque = web_opaque;
}
void WebContentLayerImpl::DidChangeLayerCanUseLCDText() {
// It is important to make this comparison because the LCD text status
// here can get out of sync with that in the layer.
if (can_use_lcd_text_ == layer_->layer()->can_use_lcd_text())
return;
// LCD text cannot be enabled once disabled.
if (layer_->layer()->can_use_lcd_text() && ignore_lcd_text_change_)
return;
can_use_lcd_text_ = layer_->layer()->can_use_lcd_text();
ignore_lcd_text_change_ = true;
layer_->invalidate();
}
bool WebContentLayerImpl::FillsBoundsCompletely() const {
return false;
}
} // namespace cc_blink
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