This source file includes following definitions.
- addClient
- removeClient
- getImage
- putImage
- image
- isFixedSize
- fixedSize
- isPending
- knownToBeOpaque
- loadSubimages
#include "config.h"
#include "core/css/CSSImageGeneratorValue.h"
#include "core/css/CSSCanvasValue.h"
#include "core/css/CSSCrossfadeValue.h"
#include "core/css/CSSGradientValue.h"
#include "platform/graphics/Image.h"
namespace WebCore {
CSSImageGeneratorValue::CSSImageGeneratorValue(ClassType classType)
: CSSValue(classType)
{
}
CSSImageGeneratorValue::~CSSImageGeneratorValue()
{
}
void CSSImageGeneratorValue::addClient(RenderObject* renderer, const IntSize& size)
{
ref();
ASSERT(renderer);
if (!size.isEmpty())
m_sizes.add(size);
RenderObjectSizeCountMap::iterator it = m_clients.find(renderer);
if (it == m_clients.end())
m_clients.add(renderer, SizeAndCount(size, 1));
else {
SizeAndCount& sizeCount = it->value;
++sizeCount.count;
}
}
void CSSImageGeneratorValue::removeClient(RenderObject* renderer)
{
ASSERT(renderer);
RenderObjectSizeCountMap::iterator it = m_clients.find(renderer);
ASSERT_WITH_SECURITY_IMPLICATION(it != m_clients.end());
IntSize removedImageSize;
SizeAndCount& sizeCount = it->value;
IntSize size = sizeCount.size;
if (!size.isEmpty()) {
m_sizes.remove(size);
if (!m_sizes.contains(size))
m_images.remove(size);
}
if (!--sizeCount.count)
m_clients.remove(renderer);
deref();
}
Image* CSSImageGeneratorValue::getImage(RenderObject* renderer, const IntSize& size)
{
RenderObjectSizeCountMap::iterator it = m_clients.find(renderer);
if (it != m_clients.end()) {
SizeAndCount& sizeCount = it->value;
IntSize oldSize = sizeCount.size;
if (oldSize != size) {
#if !ENABLE_OILPAN
RefPtr<CSSImageGeneratorValue> protect(this);
#endif
removeClient(renderer);
addClient(renderer, size);
}
}
if (size.isEmpty())
return 0;
return m_images.get(size);
}
void CSSImageGeneratorValue::putImage(const IntSize& size, PassRefPtr<Image> image)
{
m_images.add(size, image);
}
PassRefPtr<Image> CSSImageGeneratorValue::image(RenderObject* renderer, const IntSize& size)
{
switch (classType()) {
case CanvasClass:
return toCSSCanvasValue(this)->image(renderer, size);
case CrossfadeClass:
return toCSSCrossfadeValue(this)->image(renderer, size);
case LinearGradientClass:
return toCSSLinearGradientValue(this)->image(renderer, size);
case RadialGradientClass:
return toCSSRadialGradientValue(this)->image(renderer, size);
default:
ASSERT_NOT_REACHED();
}
return nullptr;
}
bool CSSImageGeneratorValue::isFixedSize() const
{
switch (classType()) {
case CanvasClass:
return toCSSCanvasValue(this)->isFixedSize();
case CrossfadeClass:
return toCSSCrossfadeValue(this)->isFixedSize();
case LinearGradientClass:
return toCSSLinearGradientValue(this)->isFixedSize();
case RadialGradientClass:
return toCSSRadialGradientValue(this)->isFixedSize();
default:
ASSERT_NOT_REACHED();
}
return false;
}
IntSize CSSImageGeneratorValue::fixedSize(const RenderObject* renderer)
{
switch (classType()) {
case CanvasClass:
return toCSSCanvasValue(this)->fixedSize(renderer);
case CrossfadeClass:
return toCSSCrossfadeValue(this)->fixedSize(renderer);
case LinearGradientClass:
return toCSSLinearGradientValue(this)->fixedSize(renderer);
case RadialGradientClass:
return toCSSRadialGradientValue(this)->fixedSize(renderer);
default:
ASSERT_NOT_REACHED();
}
return IntSize();
}
bool CSSImageGeneratorValue::isPending() const
{
switch (classType()) {
case CrossfadeClass:
return toCSSCrossfadeValue(this)->isPending();
case CanvasClass:
return toCSSCanvasValue(this)->isPending();
case LinearGradientClass:
return toCSSLinearGradientValue(this)->isPending();
case RadialGradientClass:
return toCSSRadialGradientValue(this)->isPending();
default:
ASSERT_NOT_REACHED();
}
return false;
}
bool CSSImageGeneratorValue::knownToBeOpaque(const RenderObject* renderer) const
{
switch (classType()) {
case CrossfadeClass:
return toCSSCrossfadeValue(this)->knownToBeOpaque(renderer);
case CanvasClass:
return false;
case LinearGradientClass:
return toCSSLinearGradientValue(this)->knownToBeOpaque(renderer);
case RadialGradientClass:
return toCSSRadialGradientValue(this)->knownToBeOpaque(renderer);
default:
ASSERT_NOT_REACHED();
}
return false;
}
void CSSImageGeneratorValue::loadSubimages(ResourceFetcher* fetcher)
{
switch (classType()) {
case CrossfadeClass:
toCSSCrossfadeValue(this)->loadSubimages(fetcher);
break;
case CanvasClass:
toCSSCanvasValue(this)->loadSubimages(fetcher);
break;
case LinearGradientClass:
toCSSLinearGradientValue(this)->loadSubimages(fetcher);
break;
case RadialGradientClass:
toCSSRadialGradientValue(this)->loadSubimages(fetcher);
break;
default:
ASSERT_NOT_REACHED();
}
}
}