InlineBox* RenderSVGText::createInlineBox(bool makePlaceHolderBox, bool isRootLineBox, bool isOnlyRun)
{
ASSERT(!isInlineFlow());
InlineFlowBox* flowBox = new (renderArena()) SVGRootInlineBox(this);
if (!m_firstLineBox)
m_firstLineBox = m_lastLineBox = flowBox;
else {
m_lastLineBox->setNextLineBox(flowBox);
flowBox->setPreviousLineBox(m_lastLineBox);
m_lastLineBox = flowBox;
}
return flowBox;
}
void RenderContainer::updateBeforeAfterContentForContainer(RenderStyle::PseudoId type, RenderContainer* styledObject)
{
// In CSS2, before/after pseudo-content cannot nest. Check this first.
if (style()->styleType() == RenderStyle::BEFORE || style()->styleType() == RenderStyle::AFTER)
return;
RenderStyle* pseudoElementStyle = styledObject->getCachedPseudoStyle(type);
RenderObject* child = beforeAfterContainer(type);
// Whether or not we currently have generated content attached.
bool oldContentPresent = child;
// Whether or not we now want generated content.
bool newContentWanted = pseudoElementStyle && pseudoElementStyle->display() != NONE;
// For <q><p/></q>, if this object is the inline continuation of the <q>, we only want to generate
// :after content and not :before content.
if (newContentWanted && type == RenderStyle::BEFORE && isInlineContinuation())
newContentWanted = false;
// Similarly, if we're the beginning of a <q>, and there's an inline continuation for our object,
// then we don't generate the :after content.
if (newContentWanted && type == RenderStyle::AFTER && isRenderInline() && continuation())
newContentWanted = false;
// If we don't want generated content any longer, or if we have generated content, but it's no longer
// identical to the new content data we want to build render objects for, then we nuke all
// of the old generated content.
if (!newContentWanted || (oldContentPresent && !child->style()->contentDataEquivalent(pseudoElementStyle))) {
// Nuke the child.
if (child && child->style()->styleType() == type) {
oldContentPresent = false;
child->destroy();
child = (type == RenderStyle::BEFORE) ? m_firstChild : m_lastChild;
}
}
// If we have no pseudo-element style or if the pseudo-element style's display type is NONE, then we
// have no generated content and can now return.
if (!newContentWanted)
return;
if (isInlineFlow() && !pseudoElementStyle->isDisplayInlineType() && pseudoElementStyle->floating() == FNONE &&
!(pseudoElementStyle->position() == AbsolutePosition || pseudoElementStyle->position() == FixedPosition))
// According to the CSS2 spec (the end of section 12.1), the only allowed
// display values for the pseudo style are NONE and INLINE for inline flows.
// FIXME: CSS2.1 lifted this restriction, but block display types will crash.
// For now we at least relax the restriction to allow all inline types like inline-block
// and inline-table.
pseudoElementStyle->setDisplay(INLINE);
if (oldContentPresent) {
if (child && child->style()->styleType() == type) {
// We have generated content present still. We want to walk this content and update our
// style information with the new pseudo-element style.
child->setStyle(pseudoElementStyle);
// Note that if we ever support additional types of generated content (which should be way off
// in the future), this code will need to be patched.
for (RenderObject* genChild = child->firstChild(); genChild; genChild = genChild->nextSibling()) {
if (genChild->isText())
// Generated text content is a child whose style also needs to be set to the pseudo-element style.
genChild->setStyle(pseudoElementStyle);
else if (genChild->isImage()) {
// Images get an empty style that inherits from the pseudo.
RefPtr<RenderStyle> style = RenderStyle::create();
style->inheritFrom(pseudoElementStyle);
genChild->setStyle(style.release());
} else
// Must be a first-letter container. updateFirstLetter() will take care of it.
ASSERT(genChild->style()->styleType() == RenderStyle::FIRST_LETTER);
}
}
return; // We've updated the generated content. That's all we needed to do.
}
RenderObject* insertBefore = (type == RenderStyle::BEFORE) ? firstChild() : 0;
// Generated content consists of a single container that houses multiple children (specified
// by the content property). This generated content container gets the pseudo-element style set on it.
RenderObject* generatedContentContainer = 0;
// Walk our list of generated content and create render objects for each.
for (const ContentData* content = pseudoElementStyle->contentData(); content; content = content->m_next) {
RenderObject* renderer = 0;
switch (content->m_type) {
case CONTENT_NONE:
break;
case CONTENT_TEXT:
renderer = new (renderArena()) RenderTextFragment(document() /* anonymous object */, content->m_content.m_text);
renderer->setStyle(pseudoElementStyle);
break;
case CONTENT_OBJECT: {
RenderImageGeneratedContent* image = new (renderArena()) RenderImageGeneratedContent(document()); // anonymous object
RefPtr<RenderStyle> style = RenderStyle::create();
style->inheritFrom(pseudoElementStyle);
image->setStyle(style.release());
if (StyleImage* styleImage = content->m_content.m_image)
image->setStyleImage(styleImage);
renderer = image;
break;
}
case CONTENT_COUNTER:
renderer = new (renderArena()) RenderCounter(document(), *content->m_content.m_counter);
renderer->setStyle(pseudoElementStyle);
break;
}
if (renderer) {
if (!generatedContentContainer) {
// Make a generated box that might be any display type now that we are able to drill down into children
// to find the original content properly.
generatedContentContainer = RenderObject::createObject(document(), pseudoElementStyle);
generatedContentContainer->setStyle(pseudoElementStyle);
}
generatedContentContainer->addChild(renderer);
}
}
// Add the pseudo after we've installed all our content so that addChild will be able to find the text
// inside the inline for e.g., first-letter styling.
if (generatedContentContainer)
addChild(generatedContentContainer, insertBefore);
}
