void RenderStyle::setContent(CounterContent* c, bool add)
{
if (!c)
return;
OwnPtr<ContentData>& content = rareNonInheritedData.access()->m_content;
ContentData* lastContent = content.get();
while (lastContent && lastContent->next())
lastContent = lastContent->next();
bool reuseContent = !add;
ContentData* newContentData = 0;
if (reuseContent && content) {
content->clear();
newContentData = content.release();
} else
newContentData = new ContentData;
if (lastContent && !reuseContent)
lastContent->setNext(newContentData);
else
content.set(newContentData);
newContentData->setCounter(c);
}
ContentData* RenderStyle::prepareToSetContent(StringImpl* string, bool add)
{
OwnPtr<ContentData>& content = rareNonInheritedData.access()->m_content;
ContentData* lastContent = content.get();
while (lastContent && lastContent->next())
lastContent = lastContent->next();
if (string && add && lastContent && lastContent->isText()) {
// Augment the existing string and share the existing ContentData node.
String newText = lastContent->text();
newText.append(string);
lastContent->setText(newText.impl());
return 0;
}
bool reuseContent = !add;
OwnPtr<ContentData> newContentData;
if (reuseContent && content) {
content->clear();
newContentData = content.release();
} else
newContentData = adoptPtr(new ContentData);
ContentData* result = newContentData.get();
if (lastContent && !reuseContent)
lastContent->setNext(newContentData.release());
else
content = newContentData.release();
return result;
}
void RenderStyle::setContent(PassRefPtr<StringImpl> s, bool add)
{
if (!s)
return; // The string is null. Nothing to do. Just bail.
OwnPtr<ContentData>& content = rareNonInheritedData.access()->m_content;
ContentData* lastContent = content.get();
while (lastContent && lastContent->next())
lastContent = lastContent->next();
bool reuseContent = !add;
if (add && lastContent) {
if (lastContent->isText()) {
// We can augment the existing string and share this ContentData node.
String newStr = lastContent->text();
newStr.append(s.get());
lastContent->setText(newStr.impl());
return;
}
}
ContentData* newContentData = 0;
if (reuseContent && content) {
content->clear();
newContentData = content.release();
} else
newContentData = new ContentData;
if (lastContent && !reuseContent)
lastContent->setNext(newContentData);
else
content.set(newContentData);
newContentData->setText(s);
}
void RenderStyle::setContent(PassRefPtr<StyleImage> image, bool add)
{
if (!image)
return; // The object is null. Nothing to do. Just bail.
OwnPtr<ContentData>& content = rareNonInheritedData.access()->m_content;
ContentData* lastContent = content.get();
while (lastContent && lastContent->next())
lastContent = lastContent->next();
bool reuseContent = !add;
ContentData* newContentData;
if (reuseContent && content) {
content->clear();
newContentData = content.release();
} else
newContentData = new ContentData;
if (lastContent && !reuseContent)
lastContent->setNext(newContentData);
else
content.set(newContentData);
newContentData->setImage(image);
}
bool StyleRareNonInheritedData::contentDataEquivalent(const StyleRareNonInheritedData& o) const
{
ContentData* a = m_content.get();
ContentData* b = o.m_content.get();
while (a && b && *a == *b) {
a = a->next();
b = b->next();
}
return !a && !b;
}
PassOwnPtr<ContentData> ContentData::clone() const
{
OwnPtr<ContentData> result = cloneInternal();
ContentData* lastNewData = result.get();
for (const ContentData* contentData = next(); contentData; contentData = contentData->next()) {
OwnPtr<ContentData> newData = contentData->cloneInternal();
lastNewData->setNext(newData.release());
lastNewData = lastNewData->next();
}
return result.release();
}
std::unique_ptr<ContentData> ContentData::clone() const
{
auto result = cloneInternal();
ContentData* lastNewData = result.get();
for (const ContentData* contentData = next(); contentData; contentData = contentData->next()) {
auto newData = contentData->cloneInternal();
lastNewData->setNext(std::move(newData));
lastNewData = lastNewData->next();
}
return result;
}
ContentData* ContentData::clone() const {
ContentData* result = cloneInternal();
ContentData* lastNewData = result;
for (const ContentData* contentData = next(); contentData;
contentData = contentData->next()) {
ContentData* newData = contentData->cloneInternal();
lastNewData->setNext(newData);
lastNewData = lastNewData->next();
}
return result;
}
void StyleResourceLoader::loadPendingImages(RenderStyle* style, const ElementStyleResources& elementStyleResources)
{
if (elementStyleResources.pendingImageProperties().isEmpty())
return;
PendingImagePropertyMap::const_iterator::Keys end = elementStyleResources.pendingImageProperties().end().keys();
for (PendingImagePropertyMap::const_iterator::Keys it = elementStyleResources.pendingImageProperties().begin().keys(); it != end; ++it) {
CSSPropertyID currentProperty = *it;
switch (currentProperty) {
case CSSPropertyBackgroundImage: {
for (FillLayer* backgroundLayer = style->accessBackgroundLayers(); backgroundLayer; backgroundLayer = backgroundLayer->next()) {
if (backgroundLayer->image() && backgroundLayer->image()->isPendingImage())
backgroundLayer->setImage(loadPendingImage(static_cast<StylePendingImage*>(backgroundLayer->image()), elementStyleResources.deviceScaleFactor()));
}
break;
}
case CSSPropertyContent: {
for (ContentData* contentData = const_cast<ContentData*>(style->contentData()); contentData; contentData = contentData->next()) {
if (contentData->isImage()) {
StyleImage* image = static_cast<ImageContentData*>(contentData)->image();
if (image->isPendingImage()) {
RefPtr<StyleImage> loadedImage = loadPendingImage(static_cast<StylePendingImage*>(image), elementStyleResources.deviceScaleFactor());
if (loadedImage)
static_cast<ImageContentData*>(contentData)->setImage(loadedImage.release());
}
}
}
break;
}
case CSSPropertyCursor: {
if (CursorList* cursorList = style->cursors()) {
for (size_t i = 0; i < cursorList->size(); ++i) {
CursorData& currentCursor = cursorList->at(i);
if (StyleImage* image = currentCursor.image()) {
if (image->isPendingImage())
currentCursor.setImage(loadPendingImage(static_cast<StylePendingImage*>(image), elementStyleResources.deviceScaleFactor()));
}
}
}
break;
}
case CSSPropertyListStyleImage: {
if (style->listStyleImage() && style->listStyleImage()->isPendingImage())
style->setListStyleImage(loadPendingImage(static_cast<StylePendingImage*>(style->listStyleImage()), elementStyleResources.deviceScaleFactor()));
break;
}
case CSSPropertyBorderImageSource: {
if (style->borderImageSource() && style->borderImageSource()->isPendingImage())
style->setBorderImageSource(loadPendingImage(static_cast<StylePendingImage*>(style->borderImageSource()), elementStyleResources.deviceScaleFactor()));
break;
}
case CSSPropertyWebkitBoxReflect: {
if (StyleReflection* reflection = style->boxReflect()) {
const NinePieceImage& maskImage = reflection->mask();
if (maskImage.image() && maskImage.image()->isPendingImage()) {
RefPtr<StyleImage> loadedImage = loadPendingImage(static_cast<StylePendingImage*>(maskImage.image()), elementStyleResources.deviceScaleFactor());
reflection->setMask(NinePieceImage(loadedImage.release(), maskImage.imageSlices(), maskImage.fill(), maskImage.borderSlices(), maskImage.outset(), maskImage.horizontalRule(), maskImage.verticalRule()));
}
}
break;
}
case CSSPropertyWebkitMaskBoxImageSource: {
if (style->maskBoxImageSource() && style->maskBoxImageSource()->isPendingImage())
style->setMaskBoxImageSource(loadPendingImage(static_cast<StylePendingImage*>(style->maskBoxImageSource()), elementStyleResources.deviceScaleFactor()));
break;
}
case CSSPropertyWebkitMaskImage: {
for (FillLayer* maskLayer = style->accessMaskLayers(); maskLayer; maskLayer = maskLayer->next()) {
if (maskLayer->image() && maskLayer->image()->isPendingImage())
maskLayer->setImage(loadPendingImage(static_cast<StylePendingImage*>(maskLayer->image()), elementStyleResources.deviceScaleFactor()));
}
break;
}
case CSSPropertyWebkitShapeInside:
loadPendingShapeImage(style, style->shapeInside());
break;
case CSSPropertyWebkitShapeOutside:
loadPendingShapeImage(style, style->shapeOutside());
break;
default:
ASSERT_NOT_REACHED();
}
}
}
static void loadPendingImages(const PendingResources& pendingResources, Document& document, RenderStyle& style, const Element* element)
{
for (auto currentProperty : pendingResources.pendingImages.keys()) {
switch (currentProperty) {
case CSSPropertyBackgroundImage: {
for (FillLayer* backgroundLayer = &style.ensureBackgroundLayers(); backgroundLayer; backgroundLayer = backgroundLayer->next()) {
auto* styleImage = backgroundLayer->image();
if (is<StylePendingImage>(styleImage))
backgroundLayer->setImage(loadPendingImage(document, *styleImage, element));
}
break;
}
case CSSPropertyContent: {
for (ContentData* contentData = const_cast<ContentData*>(style.contentData()); contentData; contentData = contentData->next()) {
if (is<ImageContentData>(*contentData)) {
auto& styleImage = downcast<ImageContentData>(*contentData).image();
if (is<StylePendingImage>(styleImage)) {
if (auto loadedImage = loadPendingImage(document, styleImage, element))
downcast<ImageContentData>(*contentData).setImage(WTFMove(loadedImage));
}
}
}
break;
}
case CSSPropertyCursor: {
if (CursorList* cursorList = style.cursors()) {
for (size_t i = 0; i < cursorList->size(); ++i) {
CursorData& currentCursor = cursorList->at(i);
auto* styleImage = currentCursor.image();
if (is<StylePendingImage>(styleImage))
currentCursor.setImage(loadPendingImage(document, *styleImage, element));
}
}
break;
}
case CSSPropertyListStyleImage: {
auto* styleImage = style.listStyleImage();
if (is<StylePendingImage>(styleImage))
style.setListStyleImage(loadPendingImage(document, *styleImage, element));
break;
}
case CSSPropertyBorderImageSource: {
auto* styleImage = style.borderImageSource();
if (is<StylePendingImage>(styleImage))
style.setBorderImageSource(loadPendingImage(document, *styleImage, element));
break;
}
case CSSPropertyWebkitBoxReflect: {
if (StyleReflection* reflection = style.boxReflect()) {
const NinePieceImage& maskImage = reflection->mask();
auto* styleImage = maskImage.image();
if (is<StylePendingImage>(styleImage)) {
auto loadedImage = loadPendingImage(document, *styleImage, element);
reflection->setMask(NinePieceImage(WTFMove(loadedImage), maskImage.imageSlices(), maskImage.fill(), maskImage.borderSlices(), maskImage.outset(), maskImage.horizontalRule(), maskImage.verticalRule()));
}
}
break;
}
case CSSPropertyWebkitMaskBoxImageSource: {
auto* styleImage = style.maskBoxImageSource();
if (is<StylePendingImage>(styleImage))
style.setMaskBoxImageSource(loadPendingImage(document, *styleImage, element));
break;
}
case CSSPropertyWebkitMaskImage: {
for (FillLayer* maskLayer = &style.ensureMaskLayers(); maskLayer; maskLayer = maskLayer->next()) {
auto* styleImage = maskLayer->image();
if (is<StylePendingImage>(styleImage))
maskLayer->setImage(loadPendingImage(document, *styleImage, element));
}
break;
}
#if ENABLE(CSS_SHAPES)
case CSSPropertyWebkitShapeOutside: {
if (!style.shapeOutside())
return;
StyleImage* image = style.shapeOutside()->image();
if (is<StylePendingImage>(image))
style.shapeOutside()->setImage(loadPendingImage(document, *image, element, LoadPolicy::ShapeOutside));
break;
}
#endif
default:
ASSERT_NOT_REACHED();
}
}
}
void ElementStyleResources::loadPendingImages(ComputedStyle* style)
{
// We must loop over the properties and then look at the style to see if
// a pending image exists, and only load that image. For example:
//
// <style>
// div { background-image: url(a.png); }
// div { background-image: url(b.png); }
// div { background-image: none; }
// </style>
// <div></div>
//
// We call styleImage() for both a.png and b.png adding the
// CSSPropertyBackgroundImage property to the m_pendingImageProperties set,
// then we null out the background image because of the "none".
//
// If we eagerly loaded the images we'd fetch a.png, even though it's not
// used. If we didn't null check below we'd crash since the none actually
// removed all background images.
for (CSSPropertyID property : m_pendingImageProperties) {
switch (property) {
case CSSPropertyBackgroundImage: {
for (FillLayer* backgroundLayer = &style->accessBackgroundLayers(); backgroundLayer; backgroundLayer = backgroundLayer->next()) {
if (backgroundLayer->image() && backgroundLayer->image()->isPendingImage())
backgroundLayer->setImage(loadPendingImage(toStylePendingImage(backgroundLayer->image())));
}
break;
}
case CSSPropertyContent: {
for (ContentData* contentData = const_cast<ContentData*>(style->contentData()); contentData; contentData = contentData->next()) {
if (contentData->isImage()) {
StyleImage* image = toImageContentData(contentData)->image();
if (image->isPendingImage())
toImageContentData(contentData)->setImage(loadPendingImage(toStylePendingImage(image)));
}
}
break;
}
case CSSPropertyCursor: {
if (CursorList* cursorList = style->cursors()) {
for (size_t i = 0; i < cursorList->size(); ++i) {
CursorData& currentCursor = cursorList->at(i);
if (StyleImage* image = currentCursor.image()) {
if (image->isPendingImage())
currentCursor.setImage(loadPendingImage(toStylePendingImage(image)));
}
}
}
break;
}
case CSSPropertyListStyleImage: {
if (style->listStyleImage() && style->listStyleImage()->isPendingImage())
style->setListStyleImage(loadPendingImage(toStylePendingImage(style->listStyleImage())));
break;
}
case CSSPropertyBorderImageSource: {
if (style->borderImageSource() && style->borderImageSource()->isPendingImage())
style->setBorderImageSource(loadPendingImage(toStylePendingImage(style->borderImageSource())));
break;
}
case CSSPropertyWebkitBoxReflect: {
if (StyleReflection* reflection = style->boxReflect()) {
const NinePieceImage& maskImage = reflection->mask();
if (maskImage.image() && maskImage.image()->isPendingImage()) {
RefPtrWillBeRawPtr<StyleImage> loadedImage = loadPendingImage(toStylePendingImage(maskImage.image()));
reflection->setMask(NinePieceImage(loadedImage.release(), maskImage.imageSlices(), maskImage.fill(), maskImage.borderSlices(), maskImage.outset(), maskImage.horizontalRule(), maskImage.verticalRule()));
}
}
break;
}
case CSSPropertyWebkitMaskBoxImageSource: {
if (style->maskBoxImageSource() && style->maskBoxImageSource()->isPendingImage())
style->setMaskBoxImageSource(loadPendingImage(toStylePendingImage(style->maskBoxImageSource())));
break;
}
case CSSPropertyWebkitMaskImage: {
for (FillLayer* maskLayer = &style->accessMaskLayers(); maskLayer; maskLayer = maskLayer->next()) {
if (maskLayer->image() && maskLayer->image()->isPendingImage())
maskLayer->setImage(loadPendingImage(toStylePendingImage(maskLayer->image())));
}
break;
}
case CSSPropertyShapeOutside:
if (style->shapeOutside() && style->shapeOutside()->image() && style->shapeOutside()->image()->isPendingImage())
style->shapeOutside()->setImage(loadPendingImage(toStylePendingImage(style->shapeOutside()->image()), CrossOriginAttributeAnonymous));
break;
default:
ASSERT_NOT_REACHED();
}
}
}