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/*
* Copyright (C) 2011 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "third_party/blink/renderer/core/css/css_crossfade_value.h"
#include "third_party/blink/renderer/core/loader/resource/image_resource_observer.h"
#include "third_party/blink/renderer/platform/wtf/text/string_builder.h"
namespace blink {
namespace cssvalue {
CSSCrossfadeValue::CSSCrossfadeValue(CSSValue* from_value,
CSSValue* to_value,
CSSPrimitiveValue* percentage_value)
: CSSImageGeneratorValue(kCrossfadeClass),
from_value_(from_value),
to_value_(to_value),
percentage_value_(percentage_value) {}
CSSCrossfadeValue::~CSSCrossfadeValue() = default;
String CSSCrossfadeValue::CustomCSSText() const {
StringBuilder result;
result.Append("-webkit-cross-fade(");
result.Append(from_value_->CssText());
result.Append(", ");
result.Append(to_value_->CssText());
result.Append(", ");
result.Append(percentage_value_->CssText());
result.Append(')');
return result.ToString();
}
bool CSSCrossfadeValue::HasFailedOrCanceledSubresources() const {
return from_value_->HasFailedOrCanceledSubresources() ||
to_value_->HasFailedOrCanceledSubresources();
}
bool CSSCrossfadeValue::Equals(const CSSCrossfadeValue& other) const {
return DataEquivalent(from_value_, other.from_value_) &&
DataEquivalent(to_value_, other.to_value_) &&
DataEquivalent(percentage_value_, other.percentage_value_);
}
class CSSCrossfadeValue::ObserverProxy final
: public GarbageCollected<CSSCrossfadeValue::ObserverProxy>,
public ImageResourceObserver {
public:
explicit ObserverProxy(CSSCrossfadeValue* owner) : owner_(owner) {}
void ImageChanged(ImageResourceContent*,
CanDeferInvalidation defer) override {
for (const ImageResourceObserver* const_observer : Clients().Keys()) {
auto* observer = const_cast<ImageResourceObserver*>(const_observer);
observer->ImageChanged(static_cast<WrappedImagePtr>(owner_), defer);
}
}
bool WillRenderImage() override {
for (const ImageResourceObserver* const_observer : Clients().Keys()) {
auto* observer = const_cast<ImageResourceObserver*>(const_observer);
if (observer->WillRenderImage())
return true;
}
return false;
}
bool GetImageAnimationPolicy(
mojom::blink::ImageAnimationPolicy& animation_policy) override {
for (const ImageResourceObserver* const_observer : Clients().Keys()) {
auto* observer = const_cast<ImageResourceObserver*>(const_observer);
if (observer->GetImageAnimationPolicy(animation_policy))
return true;
}
return false;
}
String DebugName() const override { return "CrossfadeObserverProxy"; }
void Trace(Visitor* visitor) const { visitor->Trace(owner_); }
private:
const ClientSizeCountMap& Clients() const { return owner_->Clients(); }
Member<CSSCrossfadeValue> owner_;
};
ImageResourceObserver* CSSCrossfadeValue::GetObserverProxy() {
if (!observer_proxy_)
observer_proxy_ = MakeGarbageCollected<ObserverProxy>(this);
return observer_proxy_;
}
void CSSCrossfadeValue::TraceAfterDispatch(Visitor* visitor) const {
visitor->Trace(from_value_);
visitor->Trace(to_value_);
visitor->Trace(percentage_value_);
visitor->Trace(observer_proxy_);
CSSImageGeneratorValue::TraceAfterDispatch(visitor);
}
} // namespace cssvalue
} // namespace blink
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