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// Copyright 2016 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 "core/css/cssom/CSSStyleImageValue.h"
namespace blink {
double CSSStyleImageValue::intrinsicWidth(bool& isNull) const {
isNull = isCachePending();
if (isNull)
return 0;
return imageLayoutSize().width().toDouble();
}
double CSSStyleImageValue::intrinsicHeight(bool& isNull) const {
isNull = isCachePending();
if (isNull)
return 0;
return imageLayoutSize().height().toDouble();
}
double CSSStyleImageValue::intrinsicRatio(bool& isNull) {
isNull = isCachePending();
if (isNull || intrinsicHeight(isNull) == 0) {
isNull = true;
return 0;
}
return intrinsicWidth(isNull) / intrinsicHeight(isNull);
}
FloatSize CSSStyleImageValue::elementSize(
const FloatSize& defaultObjectSize) const {
bool notUsed;
return FloatSize(intrinsicWidth(notUsed), intrinsicHeight(notUsed));
}
bool CSSStyleImageValue::isAccelerated() const {
return image() && image()->isTextureBacked();
}
int CSSStyleImageValue::sourceHeight() {
bool notUsed;
return intrinsicHeight(notUsed);
}
int CSSStyleImageValue::sourceWidth() {
bool notUsed;
return intrinsicWidth(notUsed);
}
PassRefPtr<Image> CSSStyleImageValue::image() const {
if (isCachePending())
return nullptr;
// cachedImage can be null if image is StyleInvalidImage
ImageResourceContent* cachedImage =
m_imageValue->cachedImage()->cachedImage();
if (cachedImage) {
// getImage() returns the nullImage() if the image is not available yet
return cachedImage->getImage()->imageForDefaultFrame();
}
return nullptr;
}
} // namespace blink
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