#include "config.h"
#include "CSSImageValue.h"
#include "CSSValueKeywords.h"
#include "Cache.h"
#include "CachedImage.h"
#include "DocLoader.h"
#include "RenderStyle.h"
#include "StyleCachedImage.h"
namespace WebCore {
CSSImageValue::CSSImageValue(const String& url)
: CSSPrimitiveValue(url, CSS_URI)
, m_accessedImage(false)
{
}
CSSImageValue::CSSImageValue()
: CSSPrimitiveValue(CSSValueNone)
, m_accessedImage(true)
{
}
CSSImageValue::~CSSImageValue()
{
if (m_image)
m_image->cachedImage()->removeClient(this);
}
StyleCachedImage* CSSImageValue::cachedImage(DocLoader* loader)
{
return cachedImage(loader, getStringValue());
}
StyleCachedImage* CSSImageValue::cachedImage(DocLoader* loader, const String& url)
{
if (!m_accessedImage) {
m_accessedImage = true;
CachedImage* cachedImage = 0;
if (loader)
cachedImage = loader->requestImage(url);
else {
cachedImage = static_cast<CachedImage*>(cache()->requestResource(0, CachedResource::ImageResource, KURL(url), String()));
}
if (cachedImage) {
cachedImage->addClient(this);
m_image = StyleCachedImage::create(cachedImage);
}
}
return m_image.get();
}
String CSSImageValue::cachedImageURL()
{
if (!m_image)
return String();
return m_image->cachedImage()->url();
}
void CSSImageValue::clearCachedImage()
{
if (m_image)
m_image->cachedImage()->removeClient(this);
m_image = 0;
m_accessedImage = false;
}
}