void RenderListItem::updateMarkerLocation() { // Sanity check the location of our marker. if (m_marker) { RenderObject* markerPar = m_marker->parent(); RenderObject* lineBoxParent = getParentOfFirstLineBox(this, m_marker); if (!lineBoxParent) { // If the marker is currently contained inside an anonymous box, // then we are the only item in that anonymous box (since no line box // parent was found). It's ok to just leave the marker where it is // in this case. if (markerPar && markerPar->isAnonymousBlock()) lineBoxParent = markerPar; else lineBoxParent = this; } if (markerPar != lineBoxParent || m_marker->preferredLogicalWidthsDirty()) { // Removing and adding the marker can trigger repainting in // containers other than ourselves, so we need to disable LayoutState. LayoutStateDisabler layoutStateDisabler(view()); updateFirstLetter(); m_marker->remove(); if (!lineBoxParent) lineBoxParent = this; lineBoxParent->addChild(m_marker, firstNonMarkerChild(lineBoxParent)); m_marker->updateMarginsAndContent(); // If markerPar is an anonymous block that has lost all its children, destroy it. if (markerPar && markerPar->isAnonymousBlock() && !markerPar->firstChild() && !toRenderBlock(markerPar)->continuation()) markerPar->destroy(); } } }
bool RenderListItem::updateMarkerLocation() { ASSERT(m_marker); RenderObject* markerParent = m_marker->parent(); RenderObject* lineBoxParent = getParentOfFirstLineBox(this, m_marker); if (!lineBoxParent) { // If the marker is currently contained inside an anonymous box, then we // are the only item in that anonymous box (since no line box parent was // found). It's ok to just leave the marker where it is in this case. if (markerParent && markerParent->isAnonymousBlock()) lineBoxParent = markerParent; else lineBoxParent = this; } if (markerParent != lineBoxParent) { m_marker->remove(); lineBoxParent->addChild(m_marker, firstNonMarkerChild(lineBoxParent)); m_marker->updateMarginsAndContent(); // If markerParent is an anonymous block with no children, destroy it. if (markerParent && markerParent->isAnonymousBlock() && !toRenderBlock(markerParent)->firstChild() && !toRenderBlock(markerParent)->continuation()) markerParent->destroy(); return true; } return false; }
void PseudoElement::attach(const AttachContext& context) { ASSERT(!renderer()); Element::attach(context); RenderObject* renderer = this->renderer(); if (!renderer) return; RenderStyle* style = renderer->style(); if (style->hasFlowFrom()) return; if (style->styleType() != BEFORE && style->styleType() != AFTER) return; ASSERT(style->contentData()); for (const ContentData* content = style->contentData(); content; content = content->next()) { RenderObject* child = content->createRenderer(document(), style); if (renderer->isChildAllowed(child, style)) { renderer->addChild(child); if (child->isQuote()) toRenderQuote(child)->attachQuote(); } else child->destroy(); } }
static RenderObject* ensureBeforeAfterContainer(RenderObject* owner, PseudoId type, RenderStyle* pseudoElementStyle, Node* generatingNode, RenderObject* insertBefore) { // 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. RenderObject* generatedContentContainer = RenderObject::createObject(owner->document(), pseudoElementStyle); ASSERT(generatingNode); // The styled object cannot be anonymous or else it could not have ':before' or ':after' pseudo elements. generatedContentContainer->setNode(generatingNode); // This allows access to the generatingNode. generatedContentContainer->setStyle(pseudoElementStyle); if (!owner->isChildAllowed(generatedContentContainer, pseudoElementStyle)) { // The generated content container is not allowed here -> abort. generatedContentContainer->destroy(); return 0; } // When we don't have a first child and are part of a continuation chain, // insertBefore is incorrectly set to zero above, which causes the :before // child to end up at the end of continuation chain. // See https://bugs.webkit.org/show_bug.cgi?id=78380. if (!insertBefore && type == BEFORE && owner->virtualContinuation()) owner->addChildIgnoringContinuation(generatedContentContainer, 0); else owner->addChild(generatedContentContainer, insertBefore); return generatedContentContainer; }
static void createRendererIfNeeded(Element& element, RenderStyle* resolvedStyle) { ASSERT(!element.renderer()); Document& document = element.document(); ContainerNode* renderingParentNode = NodeRenderingTraversal::parent(&element); RefPtr<RenderStyle> style = resolvedStyle; element.setIsInsideRegion(false); if (!shouldCreateRenderer(element, renderingParentNode) && !elementInsideRegionNeedsRenderer(element, renderingParentNode, style)) return; if (!style) style = element.styleForRenderer(); RenderNamedFlowThread* parentFlowRenderer = 0; #if ENABLE(CSS_REGIONS) parentFlowRenderer = moveToFlowThreadIfNeeded(element, *style); #endif if (!element.rendererIsNeeded(*style)) return; RenderObject* parentRenderer; RenderObject* nextRenderer; if (parentFlowRenderer) { parentRenderer = parentFlowRenderer; nextRenderer = parentFlowRenderer->nextRendererForNode(&element); } else { parentRenderer = renderingParentNode->renderer(); nextRenderer = nextSiblingRenderer(element, renderingParentNode); } RenderObject* newRenderer = element.createRenderer(document.renderArena(), style.get()); if (!newRenderer) return; if (!parentRenderer->isChildAllowed(newRenderer, style.get())) { newRenderer->destroy(); return; } // Make sure the RenderObject already knows it is going to be added to a RenderFlowThread before we set the style // for the first time. Otherwise code using inRenderFlowThread() in the styleWillChange and styleDidChange will fail. newRenderer->setFlowThreadState(parentRenderer->flowThreadState()); element.setRenderer(newRenderer); newRenderer->setAnimatableStyle(style.release()); // setAnimatableStyle() can depend on renderer() already being set. #if ENABLE(FULLSCREEN_API) if (document.webkitIsFullScreen() && document.webkitCurrentFullScreenElement() == &element) { newRenderer = RenderFullScreen::wrapRenderer(newRenderer, parentRenderer, &document); if (!newRenderer) return; } #endif // Note: Adding newRenderer instead of renderer(). renderer() may be a child of newRenderer. parentRenderer->addChild(newRenderer, nextRenderer); }
TEST_F(RenderPartTest, DestroyUpdatesImageQualityController) { RefPtrWillBeRawPtr<Element> element = HTMLElement::create(HTMLNames::divTag, document()); RenderObject* part = new RenderPart(element.get()); // The third and forth arguments are not important in this test. ImageQualityController::imageQualityController()->set(part, 0, this, LayoutSize(1, 1)); EXPECT_TRUE(ImageQualityController::has(part)); part->destroy(); EXPECT_FALSE(ImageQualityController::has(part)); }
void NodeRenderingContext::createRendererForElementIfNeeded() { ASSERT(!m_node->renderer()); Element* element = toElement(m_node); if (!shouldCreateRenderer()) return; m_style = element->styleForRenderer(); ASSERT(m_style); moveToFlowThreadIfNeeded(); if (!element->rendererIsNeeded(*this)) return; RenderObject* parentRenderer = this->parentRenderer(); RenderObject* nextRenderer = this->nextRenderer(); #if ENABLE(DIALOG_ELEMENT) if (element->isInTopLayer()) adjustInsertionPointForTopLayerElement(element, parentRenderer, nextRenderer); #endif Document* document = element->document(); RenderObject* newRenderer = element->createRenderer(document->renderArena(), m_style.get()); if (!newRenderer) return; if (!parentRenderer->isChildAllowed(newRenderer, m_style.get())) { newRenderer->destroy(); return; } // Make sure the RenderObject already knows it is going to be added to a RenderFlowThread before we set the style // for the first time. Otherwise code using inRenderFlowThread() in the styleWillChange and styleDidChange will fail. newRenderer->setInRenderFlowThread(parentRenderer->inRenderFlowThread()); element->setRenderer(newRenderer); newRenderer->setAnimatableStyle(m_style.release()); // setAnimatableStyle() can depend on renderer() already being set. #if ENABLE(FULLSCREEN_API) if (document->webkitIsFullScreen() && document->webkitCurrentFullScreenElement() == element) { newRenderer = RenderFullScreen::wrapRenderer(newRenderer, parentRenderer, document); if (!newRenderer) return; } #endif // Note: Adding newRenderer instead of renderer(). renderer() may be a child of newRenderer. parentRenderer->addChild(newRenderer, nextRenderer); }
void NodeRenderingContext::createRendererForElementIfNeeded() { ASSERT(!m_node->renderer()); Element* element = toElement(m_node); element->setIsInsideRegion(false); if (!shouldCreateRenderer() && !elementInsideRegionNeedsRenderer()) return; if (!m_style) m_style = element->styleForRenderer(); ASSERT(m_style); moveToFlowThreadIfNeeded(); if (!element->rendererIsNeeded(*this)) return; RenderObject* newRenderer = element->createRenderer(m_style.get()); if (!newRenderer) return; RenderObject* parentRenderer = this->parentRenderer(); if (!parentRenderer->isChildAllowed(newRenderer, m_style.get())) { newRenderer->destroy(); return; } // Make sure the RenderObject already knows it is going to be added to a RenderFlowThread before we set the style // for the first time. Otherwise code using inRenderFlowThread() in the styleWillChange and styleDidChange will fail. newRenderer->setFlowThreadState(parentRenderer->flowThreadState()); RenderObject* nextRenderer = this->nextRenderer(); element->setRenderer(newRenderer); newRenderer->setAnimatableStyle(m_style.release()); // setAnimatableStyle() can depend on renderer() already being set. if (FullscreenElementStack::isActiveFullScreenElement(element)) { newRenderer = RenderFullScreen::wrapRenderer(newRenderer, parentRenderer, element->document()); if (!newRenderer) return; } // Note: Adding newRenderer instead of renderer(). renderer() may be a child of newRenderer. parentRenderer->addChild(newRenderer, nextRenderer); }
RenderObject* NodeRendererFactory::createRenderer() { Node* node = m_context.node(); RenderObject* newRenderer = node->createRenderer(node->document()->renderArena(), m_context.style()); if (!newRenderer) return 0; if (!m_context.parentRenderer()->isChildAllowed(newRenderer, m_context.style())) { newRenderer->destroy(); return 0; } node->setRenderer(newRenderer); newRenderer->setAnimatableStyle(m_context.releaseStyle()); // setAnimatableStyle() can depend on renderer() already being set. return newRenderer; }
void NodeRenderingContext::createRendererIfNeeded() { ASSERT(!m_node->renderer()); if (!shouldCreateRenderer()) return; Element* element = m_node->isElementNode() ? toElement(m_node) : 0; m_style = element ? element->styleForRenderer() : parentRenderer()->style(); ASSERT(m_style); moveToFlowThreadIfNeeded(); if (!m_node->rendererIsNeeded(*this)) { if (element && m_style->affectedByEmpty()) element->setStyleAffectedByEmpty(); return; } RenderObject* parentRenderer = this->parentRenderer(); RenderObject* nextRenderer = this->nextRenderer(); #if ENABLE(DIALOG_ELEMENT) if (element && element->isInTopLayer()) adjustInsertionPointForTopLayerElement(element, parentRenderer, nextRenderer); #endif Document* document = m_node->document(); RenderObject* newRenderer = m_node->createRenderer(document->renderArena(), m_style.get()); if (!newRenderer) return; if (!parentRenderer->isChildAllowed(newRenderer, m_style.get())) { newRenderer->destroy(); return; } m_node->setRenderer(newRenderer); newRenderer->setAnimatableStyle(m_style.release()); // setAnimatableStyle() can depend on renderer() already being set. #if ENABLE(FULLSCREEN_API) if (document->webkitIsFullScreen() && document->webkitCurrentFullScreenElement() == m_node) { newRenderer = RenderFullScreen::wrapRenderer(newRenderer, parentRenderer, document); if (!newRenderer) return; } #endif // Note: Adding newRenderer instead of renderer(). renderer() may be a child of newRenderer. parentRenderer->addChild(newRenderer, nextRenderer); }
void RenderTreeBuilder::createRendererForElementIfNeeded() { ASSERT(!m_node->renderer()); // If we're out of composition then we can't render since there's no parent to inherit from. if (!m_renderingParent) return; Element* element = toElement(m_node); if (!shouldCreateRenderer()) return; RenderStyle& style = this->style(); if (!element->rendererIsNeeded(style)) return; RenderObject* newRenderer = element->createRenderer(&style); if (!newRenderer) return; RenderObject* parentRenderer = this->parentRenderer(); if (!parentRenderer->isChildAllowed(newRenderer, &style)) { newRenderer->destroy(); return; } // Make sure the RenderObject already knows it is going to be added to a RenderFlowThread before we set the style // for the first time. Otherwise code using inRenderFlowThread() in the styleWillChange and styleDidChange will fail. newRenderer->setFlowThreadState(parentRenderer->flowThreadState()); RenderObject* nextRenderer = this->nextRenderer(); element->setRenderer(newRenderer); newRenderer->setStyle(&style); // setStyle() can depend on renderer() already being set. if (FullscreenElementStack::isActiveFullScreenElement(element)) { newRenderer = RenderFullScreen::wrapRenderer(newRenderer, parentRenderer, &element->document()); if (!newRenderer) return; } // Note: Adding newRenderer instead of renderer(). renderer() may be a child of newRenderer. parentRenderer->addChild(newRenderer, nextRenderer); }
void PseudoElement::didAttachRenderers() { RenderObject* renderer = this->renderer(); if (!renderer || !renderer->style()->regionThread().isEmpty()) return; RenderStyle* style = renderer->style(); ASSERT(style->contentData()); for (const ContentData* content = style->contentData(); content; content = content->next()) { RenderObject* child = content->createRenderer(document(), style); if (renderer->isChildAllowed(child, style)) { renderer->addChild(child); if (child->isQuote()) toRenderQuote(child)->attachQuote(); } else child->destroy(); } }
void RenderObjectChildList::updateBeforeAfterContent(RenderObject* owner, PseudoId type, const RenderObject* styledObject) { // Double check that the document did in fact use generated content rules. Otherwise we should not have been called. ASSERT(owner->document()->usesBeforeAfterRules()); // In CSS2, before/after pseudo-content cannot nest. Check this first. if (owner->style()->styleType() == BEFORE || owner->style()->styleType() == AFTER) return; if (!styledObject) styledObject = owner; RenderStyle* pseudoElementStyle = styledObject->getCachedPseudoStyle(type); RenderObject* child; switch (type) { case BEFORE: child = beforePseudoElementRenderer(owner); break; case AFTER: child = afterPseudoElementRenderer(owner); break; default: ASSERT_NOT_REACHED(); return; } // 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 == BEFORE && owner->isElementContinuation()) 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 == AFTER && owner->virtualContinuation()) 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 (oldContentPresent && (!newContentWanted || Node::diff(child->style(), pseudoElementStyle, owner->document()) == Node::Detach)) { // Nuke the child. if (child->style()->styleType() == type) { oldContentPresent = false; child->destroy(); child = (type == BEFORE) ? owner->virtualChildren()->firstChild() : owner->virtualChildren()->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 (owner->isRenderInline() && !pseudoElementStyle->isDisplayInlineType() && !pseudoElementStyle->isFloating() && !(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) { updateBeforeAfterStyle(child, type, pseudoElementStyle); return; // We've updated the generated content. That's all we needed to do. } RenderObject* insertBefore = (type == BEFORE) ? owner->virtualChildren()->firstChild() : 0; if (insertBefore && insertBefore->isAnonymousBlock() && insertBefore->childrenInline() && !insertBefore->isEmpty()) { // We are going to add the "before" element. We have to check whether the "insertBefore" element // is an anonymous block with inline children. If it is, then we should insert the "before" element // before the first inline child of the anonymous block, otherwise we will end up with the "before" // element in a different block. We do this only when the anonymous block has children, otherwise // we end up with the before element in a wrong block. insertBefore = insertBefore->firstChild(); } // Nothing goes before the intruded run-in, not even generated content. if (insertBefore && insertBefore->isRunIn() && owner->isRenderBlock() && toRenderBlock(owner)->runInIsPlacedIntoSiblingBlock(insertBefore)) insertBefore = insertBefore->nextSibling(); // 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->next()) { RenderObject* renderer = createRendererForBeforeAfterContent(owner, content, pseudoElementStyle); 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(owner->document(), pseudoElementStyle); ASSERT(styledObject->node()); // The styled object cannot be anonymous or else it could not have ':before' or ':after' pseudo elements. generatedContentContainer->setNode(styledObject->node()); // This allows access to the generatingNode. generatedContentContainer->setStyle(pseudoElementStyle); if (!owner->isChildAllowed(generatedContentContainer, pseudoElementStyle)) { // The generated content container is not allowed here -> abort. generatedContentContainer->destroy(); renderer->destroy(); return; } // When we don't have a first child and are part of a continuation chain, // insertBefore is incorrectly set to zero above, which causes the :before // child to end up at the end of continuation chain. // See https://bugs.webkit.org/show_bug.cgi?id=78380. if (!insertBefore && type == BEFORE && owner->virtualContinuation()) owner->addChildIgnoringContinuation(generatedContentContainer, 0); else owner->addChild(generatedContentContainer, insertBefore); } if (generatedContentContainer->isChildAllowed(renderer, pseudoElementStyle)) generatedContentContainer->addChild(renderer); else renderer->destroy(); } } if (!generatedContentContainer) return; // Handle placement of run-ins. We do the run-in placement at the end since generatedContentContainer can get destroyed. RenderObject* generatedContentContainerImmediateParent = generatedContentContainer->parent(); if (generatedContentContainerImmediateParent->isRenderBlock()) toRenderBlock(generatedContentContainerImmediateParent)->placeRunInIfNeeded(generatedContentContainer, PlaceGeneratedRunIn); }
void RenderObjectChildList::updateBeforeAfterContent(RenderObject* owner, PseudoId type, RenderObject* styledObject) { // Double check that the document did in fact use generated content rules. Otherwise we should not have been called. ASSERT(owner->document()->usesBeforeAfterRules()); // In CSS2, before/after pseudo-content cannot nest. Check this first. if (owner->style()->styleType() == BEFORE || owner->style()->styleType() == AFTER) return; if (!styledObject) styledObject = owner; RenderStyle* pseudoElementStyle = styledObject->getCachedPseudoStyle(type); RenderObject* child = beforeAfterContainer(owner, 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 == BEFORE && owner->isElementContinuation()) 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 == AFTER && owner->virtualContinuation()) 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 (oldContentPresent && (!newContentWanted || Node::diff(child->style(), pseudoElementStyle) == Node::Detach)) { // Nuke the child. if (child->style()->styleType() == type) { oldContentPresent = false; child->destroy(); child = (type == BEFORE) ? owner->virtualChildren()->firstChild() : owner->virtualChildren()->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 (owner->isRenderInline() && !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); RenderObject* beforeAfterParent = findBeforeAfterParent(child); if (!beforeAfterParent) return; // 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 = beforeAfterParent->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 { // RenderListItem may insert a list marker here. We do not need to care about this case. // Otherwise, genChild must be a first-letter container. updateFirstLetter() will take care of it. ASSERT(genChild->isListMarker() || genChild->style()->styleType() == FIRST_LETTER); } } } return; // We've updated the generated content. That's all we needed to do. } RenderObject* insertBefore = (type == BEFORE) ? owner->virtualChildren()->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->next()) { RenderObject* renderer = 0; switch (content->type()) { case CONTENT_NONE: break; case CONTENT_TEXT: renderer = new (owner->renderArena()) RenderTextFragment(owner->document() /* anonymous object */, content->text()); renderer->setStyle(pseudoElementStyle); break; case CONTENT_OBJECT: { RenderImageGeneratedContent* image = new (owner->renderArena()) RenderImageGeneratedContent(owner->document()); // anonymous object RefPtr<RenderStyle> style = RenderStyle::create(); style->inheritFrom(pseudoElementStyle); image->setStyle(style.release()); if (StyleImage* styleImage = content->image()) image->setStyleImage(styleImage); renderer = image; break; } case CONTENT_COUNTER: renderer = new (owner->renderArena()) RenderCounter(owner->document(), *content->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(owner->document(), pseudoElementStyle); generatedContentContainer->setStyle(pseudoElementStyle); owner->addChild(generatedContentContainer, insertBefore); } generatedContentContainer->addChild(renderer); } } }