void SVGUseElement::expandUseElementsInShadowTree(SVGShadowTreeRootElement* shadowRoot, Node* element) { // Why expand the <use> elements in the shadow tree here, and not just // do this directly in buildShadowTree, if we encounter a <use> element? // // Short answer: Because we may miss to expand some elements. Ie. if a <symbol> // contains <use> tags, we'd miss them. So once we're done with settin' up the // actual shadow tree (after the special case modification for svg/symbol) we have // to walk it completely and expand all <use> elements. if (element->hasTagName(SVGNames::useTag)) { SVGUseElement* use = static_cast<SVGUseElement*>(element); String id = SVGURIReference::getTarget(use->href()); Element* targetElement = document()->getElementById(id); SVGElement* target = 0; if (targetElement && targetElement->isSVGElement()) target = static_cast<SVGElement*>(targetElement); // Don't ASSERT(target) here, it may be "pending", too. // Setup sub-shadow tree root node RefPtr<SVGShadowTreeContainerElement> cloneParent = new SVGShadowTreeContainerElement(document()); // Spec: In the generated content, the 'use' will be replaced by 'g', where all attributes from the // 'use' element except for x, y, width, height and xlink:href are transferred to the generated 'g' element. transferUseAttributesToReplacedElement(use, cloneParent.get()); ExceptionCode ec = 0; if (target && !isDisallowedElement(target)) { RefPtr<Element> newChild = target->cloneElementWithChildren(); // We don't walk the target tree element-by-element, and clone each element, // but instead use cloneElementWithChildren(). This is an optimization for the common // case where <use> doesn't contain disallowed elements (ie. <foreignObject>). // Though if there are disallowed elements in the subtree, we have to remove them. // For instance: <use> on <g> containing <foreignObject> (indirect case). if (subtreeContainsDisallowedElement(newChild.get())) removeDisallowedElementsFromSubtree(newChild.get()); SVGElement* newChildPtr = 0; if (newChild->isSVGElement()) newChildPtr = static_cast<SVGElement*>(newChild.get()); ASSERT(newChildPtr); cloneParent->appendChild(newChild.release(), ec); ASSERT(!ec); } // Replace <use> with referenced content. ASSERT(use->parentNode()); use->parentNode()->replaceChild(cloneParent.release(), use, ec); ASSERT(!ec); // Immediately stop here, and restart expanding. expandUseElementsInShadowTree(shadowRoot, shadowRoot); return; } for (RefPtr<Node> child = element->firstChild(); child; child = child->nextSibling()) expandUseElementsInShadowTree(shadowRoot, child.get()); }
void SVGUseElement::expandUseElementsInShadowTree(Node* element) { // Why expand the <use> elements in the shadow tree here, and not just // do this directly in buildShadowTree, if we encounter a <use> element? // // Short answer: Because we may miss to expand some elements. Ie. if a <symbol> // contains <use> tags, we'd miss them. So once we're done with settin' up the // actual shadow tree (after the special case modification for svg/symbol) we have // to walk it completely and expand all <use> elements. if (element->hasTagName(SVGNames::useTag)) { SVGUseElement* use = toSVGUseElement(element); ASSERT(!use->cachedDocumentIsStillLoading()); ASSERT(referencedDocument()); Element* targetElement = SVGURIReference::targetElementFromIRIString(use->href(), *referencedDocument()); SVGElement* target = 0; if (targetElement && targetElement->isSVGElement()) target = toSVGElement(targetElement); // Don't ASSERT(target) here, it may be "pending", too. // Setup sub-shadow tree root node RefPtr<SVGGElement> cloneParent = SVGGElement::create(SVGNames::gTag, *referencedDocument()); use->cloneChildNodes(cloneParent.get()); // Spec: In the generated content, the 'use' will be replaced by 'g', where all attributes from the // 'use' element except for x, y, width, height and xlink:href are transferred to the generated 'g' element. transferUseAttributesToReplacedElement(use, cloneParent.get()); if (target && !isDisallowedElement(*target)) { RefPtr<Element> newChild = target->cloneElementWithChildren(); ASSERT(newChild->isSVGElement()); cloneParent->appendChild(newChild.release()); } // We don't walk the target tree element-by-element, and clone each element, // but instead use cloneElementWithChildren(). This is an optimization for the common // case where <use> doesn't contain disallowed elements (ie. <foreignObject>). // Though if there are disallowed elements in the subtree, we have to remove them. // For instance: <use> on <g> containing <foreignObject> (indirect case). if (subtreeContainsDisallowedElement(*cloneParent)) removeDisallowedElementsFromSubtree(*cloneParent); RefPtr<Node> replacingElement(cloneParent.get()); // Replace <use> with referenced content. ASSERT(use->parentNode()); use->parentNode()->replaceChild(cloneParent.release(), use); // Expand the siblings because the *element* is replaced and we will // lose the sibling chain when we are back from recursion. element = replacingElement.get(); for (RefPtr<Node> sibling = element->nextSibling(); sibling; sibling = sibling->nextSibling()) expandUseElementsInShadowTree(sibling.get()); } for (RefPtr<Node> child = element->firstChild(); child; child = child->nextSibling()) expandUseElementsInShadowTree(child.get()); }
void SVGUseElement::buildShadowAndInstanceTree(SVGElement* target) { ASSERT(!m_targetElementInstance); ASSERT(!m_needsShadowTreeRecreation); // <use> creates a "user agent" shadow root. Do not build the shadow/instance tree for <use> // elements living in a user agent shadow tree because they will get expanded in a second // pass -- see expandUseElementsInShadowTree(). if (inUseShadowTree()) return; // Do not allow self-referencing. // 'target' may be null, if it's a non SVG namespaced element. if (!target || target == this || isDisallowedElement(target)) return; // Set up root SVG element in shadow tree. RefPtrWillBeRawPtr<Element> newChild = target->cloneElementWithoutChildren(); m_targetElementInstance = toSVGElement(newChild.get()); ShadowRoot* shadowTreeRootElement = userAgentShadowRoot(); shadowTreeRootElement->appendChild(newChild.release()); // Clone the target subtree into the shadow tree, not handling <use> and <symbol> yet. // SVG specification does not say a word about <use> & cycles. My view on this is: just ignore it! // Non-appearing <use> content is easier to debug, then half-appearing content. if (!buildShadowTree(target, m_targetElementInstance.get(), false)) { clearShadowTree(); return; } if (instanceTreeIsLoading(m_targetElementInstance.get())) return; // Assure shadow tree building was successfull ASSERT(m_targetElementInstance); ASSERT(m_targetElementInstance->correspondingUseElement() == this); ASSERT(m_targetElementInstance->correspondingElement() == target); // Expand all <use> elements in the shadow tree. // Expand means: replace the actual <use> element by what it references. if (!expandUseElementsInShadowTree(m_targetElementInstance.get())) { clearShadowTree(); return; } // Expand all <symbol> elements in the shadow tree. // Expand means: replace the actual <symbol> element by the <svg> element. expandSymbolElementsInShadowTree(toSVGElement(shadowTreeRootElement->firstChild())); m_targetElementInstance = toSVGElement(shadowTreeRootElement->firstChild()); transferUseWidthAndHeightIfNeeded(*this, m_targetElementInstance.get(), *m_targetElementInstance->correspondingElement()); ASSERT(m_targetElementInstance->parentNode() == shadowTreeRootElement); // Update relative length information. updateRelativeLengthsInformation(); }
void SVGUseElement::buildShadowAndInstanceTree(SVGShadowTreeRootElement* shadowRoot) { String id = SVGURIReference::getTarget(href()); Element* targetElement = document()->getElementById(id); if (!targetElement) { // The only time we should get here is when the use element has not been // given a resource to target. ASSERT(m_resourceId.isEmpty()); return; } // Do not build the shadow/instance tree for <use> elements living in a shadow tree. // The will be expanded soon anyway - see expandUseElementsInShadowTree(). Node* parent = parentNode(); while (parent) { if (parent->isShadowNode()) return; parent = parent->parentNode(); } SVGElement* target = 0; if (targetElement && targetElement->isSVGElement()) target = static_cast<SVGElement*>(targetElement); if (m_targetElementInstance) m_targetElementInstance = 0; // Do not allow self-referencing. // 'target' may be null, if it's a non SVG namespaced element. if (!target || target == this) return; // Why a seperated instance/shadow tree? SVG demands it: // The instance tree is accesable from JavaScript, and has to // expose a 1:1 copy of the referenced tree, whereas internally we need // to alter the tree for correct "use-on-symbol", "use-on-svg" support. // Build instance tree. Create root SVGElementInstance object for the first sub-tree node. // // Spec: If the 'use' element references a simple graphics element such as a 'rect', then there is only a // single SVGElementInstance object, and the correspondingElement attribute on this SVGElementInstance object // is the SVGRectElement that corresponds to the referenced 'rect' element. m_targetElementInstance = SVGElementInstance::create(this, target); // Eventually enter recursion to build SVGElementInstance objects for the sub-tree children bool foundProblem = false; buildInstanceTree(target, m_targetElementInstance.get(), foundProblem); // SVG specification does not say a word about <use> & cycles. My view on this is: just ignore it! // Non-appearing <use> content is easier to debug, then half-appearing content. if (foundProblem) { m_targetElementInstance = 0; return; } // Assure instance tree building was successfull ASSERT(m_targetElementInstance); ASSERT(!m_targetElementInstance->shadowTreeElement()); ASSERT(m_targetElementInstance->correspondingUseElement() == this); ASSERT(m_targetElementInstance->correspondingElement() == target); // Build shadow tree from instance tree // This also handles the special cases: <use> on <symbol>, <use> on <svg>. buildShadowTree(shadowRoot, target, m_targetElementInstance.get()); #if ENABLE(SVG) && ENABLE(SVG_USE) // Expand all <use> elements in the shadow tree. // Expand means: replace the actual <use> element by what it references. expandUseElementsInShadowTree(shadowRoot, shadowRoot); // Expand all <symbol> elements in the shadow tree. // Expand means: replace the actual <symbol> element by the <svg> element. expandSymbolElementsInShadowTree(shadowRoot, shadowRoot); #endif // Now that the shadow tree is completly expanded, we can associate // shadow tree elements <-> instances in the instance tree. associateInstancesWithShadowTreeElements(shadowRoot->firstChild(), m_targetElementInstance.get()); // If no shadow tree element is present, this means that the reference root // element was removed, as it is disallowed (ie. <use> on <foreignObject>) // Do NOT leave an inconsistent instance tree around, instead destruct it. if (!m_targetElementInstance->shadowTreeElement()) { shadowRoot->removeAllChildren(); m_targetElementInstance = 0; return; } // Consistency checks - this is assumed in updateContainerOffset(). ASSERT(m_targetElementInstance->shadowTreeElement()->parentNode() == shadowRoot); // Eventually dump instance tree #ifdef DUMP_INSTANCE_TREE String text; unsigned int depth = 0; dumpInstanceTree(depth, text, m_targetElementInstance.get()); fprintf(stderr, "\nDumping <use> instance tree:\n%s\n", text.latin1().data()); #endif // Eventually dump shadow tree #ifdef DUMP_SHADOW_TREE ExceptionCode ec = 0; PassRefPtr<XMLSerializer> serializer = XMLSerializer::create(); String markup = serializer->serializeToString(shadowRoot, ec); ASSERT(!ec); fprintf(stderr, "Dumping <use> shadow tree markup:\n%s\n", markup.latin1().data()); #endif // Transfer event listeners assigned to the referenced element to our shadow tree elements. transferEventListenersToShadowTree(m_targetElementInstance.get()); // Update container offset/size updateContainerOffsets(); updateContainerSizes(); }
bool SVGUseElement::expandUseElementsInShadowTree(SVGElement* element) { ASSERT(element); // Why expand the <use> elements in the shadow tree here, and not just // do this directly in buildShadowTree, if we encounter a <use> element? // // Short answer: Because we may miss to expand some elements. For example, if a <symbol> // contains <use> tags, we'd miss them. So once we're done with setting up the // actual shadow tree (after the special case modification for svg/symbol) we have // to walk it completely and expand all <use> elements. if (isSVGUseElement(*element)) { SVGUseElement* use = toSVGUseElement(element); ASSERT(!use->resourceIsStillLoading()); SVGElement* target = 0; if (hasCycleUseReferencing(toSVGUseElement(use->correspondingElement()), use, target)) return false; if (target && isDisallowedElement(target)) return false; // Don't ASSERT(target) here, it may be "pending", too. // Setup sub-shadow tree root node RefPtrWillBeRawPtr<SVGGElement> cloneParent = SVGGElement::create(referencedScope()->document()); cloneParent->setCorrespondingElement(use->correspondingElement()); // Move already cloned elements to the new <g> element for (RefPtrWillBeRawPtr<Node> child = use->firstChild(); child; ) { RefPtrWillBeRawPtr<Node> nextChild = child->nextSibling(); cloneParent->appendChild(child); child = nextChild.release(); } // Spec: In the generated content, the 'use' will be replaced by 'g', where all attributes from the // 'use' element except for x, y, width, height and xlink:href are transferred to the generated 'g' element. transferUseAttributesToReplacedElement(use, cloneParent.get()); if (target) { RefPtrWillBeRawPtr<Node> newChild = cloneNodeAndAssociate(*target); ASSERT(newChild->isSVGElement()); transferUseWidthAndHeightIfNeeded(*use, toSVGElement(newChild.get()), *target); cloneParent->appendChild(newChild.release()); } // We don't walk the target tree element-by-element, and clone each element, // but instead use cloneElementWithChildren(). This is an optimization for the common // case where <use> doesn't contain disallowed elements (ie. <foreignObject>). // Though if there are disallowed elements in the subtree, we have to remove them. // For instance: <use> on <g> containing <foreignObject> (indirect case). if (subtreeContainsDisallowedElement(cloneParent.get())) removeDisallowedElementsFromSubtree(*cloneParent); RefPtrWillBeRawPtr<SVGElement> replacingElement(cloneParent.get()); // Replace <use> with referenced content. ASSERT(use->parentNode()); use->parentNode()->replaceChild(cloneParent.release(), use); // Expand the siblings because the *element* is replaced and we will // lose the sibling chain when we are back from recursion. element = replacingElement.get(); for (RefPtrWillBeRawPtr<SVGElement> sibling = Traversal<SVGElement>::nextSibling(*element); sibling; sibling = Traversal<SVGElement>::nextSibling(*sibling)) { if (!expandUseElementsInShadowTree(sibling.get())) return false; } } for (RefPtrWillBeRawPtr<SVGElement> child = Traversal<SVGElement>::firstChild(*element); child; child = Traversal<SVGElement>::nextSibling(*child)) { if (!expandUseElementsInShadowTree(child.get())) return false; } return true; }
void SVGUseElement::buildShadowAndInstanceTree(SVGElement* target) { ASSERT(!m_targetElementInstance); // Do not build the shadow/instance tree for <use> elements living in a shadow tree. // The will be expanded soon anyway - see expandUseElementsInShadowTree(). if (isInShadowTree()) return; // Do not allow self-referencing. // 'target' may be null, if it's a non SVG namespaced element. if (!target || target == this) return; // Why a seperated instance/shadow tree? SVG demands it: // The instance tree is accesable from JavaScript, and has to // expose a 1:1 copy of the referenced tree, whereas internally we need // to alter the tree for correct "use-on-symbol", "use-on-svg" support. // Build instance tree. Create root SVGElementInstance object for the first sub-tree node. // // Spec: If the 'use' element references a simple graphics element such as a 'rect', then there is only a // single SVGElementInstance object, and the correspondingElement attribute on this SVGElementInstance object // is the SVGRectElement that corresponds to the referenced 'rect' element. m_targetElementInstance = SVGElementInstance::create(this, this, target); // Eventually enter recursion to build SVGElementInstance objects for the sub-tree children bool foundProblem = false; buildInstanceTree(target, m_targetElementInstance.get(), foundProblem, false); if (instanceTreeIsLoading(m_targetElementInstance.get())) return; // SVG specification does not say a word about <use> & cycles. My view on this is: just ignore it! // Non-appearing <use> content is easier to debug, then half-appearing content. if (foundProblem) { clearResourceReferences(); return; } // Assure instance tree building was successfull ASSERT(m_targetElementInstance); ASSERT(!m_targetElementInstance->shadowTreeElement()); ASSERT(m_targetElementInstance->correspondingUseElement() == this); ASSERT(m_targetElementInstance->directUseElement() == this); ASSERT(m_targetElementInstance->correspondingElement() == target); ShadowRoot* shadowTreeRootElement = shadowRoot(); ASSERT(shadowTreeRootElement); // Build shadow tree from instance tree // This also handles the special cases: <use> on <symbol>, <use> on <svg>. buildShadowTree(target, m_targetElementInstance.get()); // Expand all <use> elements in the shadow tree. // Expand means: replace the actual <use> element by what it references. expandUseElementsInShadowTree(shadowTreeRootElement); // Expand all <symbol> elements in the shadow tree. // Expand means: replace the actual <symbol> element by the <svg> element. expandSymbolElementsInShadowTree(shadowTreeRootElement); // Now that the shadow tree is completly expanded, we can associate // shadow tree elements <-> instances in the instance tree. associateInstancesWithShadowTreeElements(shadowTreeRootElement->firstChild(), m_targetElementInstance.get()); // If no shadow tree element is present, this means that the reference root // element was removed, as it is disallowed (ie. <use> on <foreignObject>) // Do NOT leave an inconsistent instance tree around, instead destruct it. if (!m_targetElementInstance->shadowTreeElement()) { clearResourceReferences(); return; } ASSERT(m_targetElementInstance->shadowTreeElement()->parentNode() == shadowTreeRootElement); // Transfer event listeners assigned to the referenced element to our shadow tree elements. transferEventListenersToShadowTree(m_targetElementInstance.get()); // Update relative length information. updateRelativeLengthsInformation(); // Eventually dump instance tree #ifdef DUMP_INSTANCE_TREE String text; unsigned int depth = 0; dumpInstanceTree(depth, text, m_targetElementInstance.get()); fprintf(stderr, "\nDumping <use> instance tree:\n%s\n", text.latin1().data()); #endif // Eventually dump shadow tree #ifdef DUMP_SHADOW_TREE RefPtr<XMLSerializer> serializer = XMLSerializer::create(); String markup = serializer->serializeToString(shadowTreeRootElement, ASSERT_NO_EXCEPTION); fprintf(stderr, "Dumping <use> shadow tree markup:\n%s\n", markup.latin1().data()); #endif }
void SVGUseElement::expandUseElementsInShadowTree(Node* element) { // Why expand the <use> elements in the shadow tree here, and not just // do this directly in buildShadowTree, if we encounter a <use> element? // // Short answer: Because we may miss to expand some elements. Ie. if a <symbol> // contains <use> tags, we'd miss them. So once we're done with settin' up the // actual shadow tree (after the special case modification for svg/symbol) we have // to walk it completely and expand all <use> elements. if (element->hasTagName(SVGNames::useTag)) { SVGUseElement* use = static_cast<SVGUseElement*>(element); String id = SVGURIReference::getTarget(use->href()); Element* targetElement = document()->getElementById(id); SVGElement* target = 0; if (targetElement && targetElement->isSVGElement()) target = static_cast<SVGElement*>(targetElement); // Don't ASSERT(target) here, it may be "pending", too. if (target) { // Setup sub-shadow tree root node RefPtr<SVGElement> cloneParent = new SVGGElement(SVGNames::gTag, document()); // Spec: In the generated content, the 'use' will be replaced by 'g', where all attributes from the // 'use' element except for x, y, width, height and xlink:href are transferred to the generated 'g' element. transferUseAttributesToReplacedElement(use, cloneParent.get()); // Spec: An additional transformation translate(x,y) is appended to the end // (i.e., right-side) of the transform attribute on the generated 'g', where x // and y represent the values of the x and y attributes on the 'use' element. if (use->x().value() != 0.0 || use->y().value() != 0.0) { if (!cloneParent->hasAttribute(SVGNames::transformAttr)) { String transformString = String::format("translate(%f, %f)", use->x().value(), use->y().value()); cloneParent->setAttribute(SVGNames::transformAttr, transformString); } else { String transformString = String::format(" translate(%f, %f)", use->x().value(), use->y().value()); const AtomicString& transformAttribute = cloneParent->getAttribute(SVGNames::transformAttr); cloneParent->setAttribute(SVGNames::transformAttr, transformAttribute + transformString); } } ExceptionCode ec = 0; // For instance <use> on <foreignObject> (direct case). if (isDisallowedElement(target)) { // We still have to setup the <use> replacment (<g>). Otherwhise // associateInstancesWithShadowTreeElements() makes wrong assumptions. // Replace <use> with referenced content. ASSERT(use->parentNode()); use->parentNode()->replaceChild(cloneParent.release(), use, ec); ASSERT(ec == 0); return; } RefPtr<Node> newChild = target->cloneNode(true); // We don't walk the target tree element-by-element, and clone each element, // but instead use cloneNode(deep=true). This is an optimization for the common // case where <use> doesn't contain disallowed elements (ie. <foreignObject>). // Though if there are disallowed elements in the subtree, we have to remove them. // For instance: <use> on <g> containing <foreignObject> (indirect case). if (subtreeContainsDisallowedElement(newChild.get())) removeDisallowedElementsFromSubtree(newChild.get()); SVGElement* newChildPtr = 0; if (newChild->isSVGElement()) newChildPtr = static_cast<SVGElement*>(newChild.get()); ASSERT(newChildPtr); cloneParent->appendChild(newChild.release(), ec); ASSERT(ec == 0); // Replace <use> with referenced content. ASSERT(use->parentNode()); use->parentNode()->replaceChild(cloneParent.release(), use, ec); ASSERT(ec == 0); // Handle use referencing <svg> special case if (target->hasTagName(SVGNames::svgTag)) alterShadowTreeForSVGTag(newChildPtr); // Immediately stop here, and restart expanding. expandUseElementsInShadowTree(m_shadowTreeRootElement.get()); return; } } for (RefPtr<Node> child = element->firstChild(); child; child = child->nextSibling()) expandUseElementsInShadowTree(child.get()); }
void SVGUseElement::buildPendingResource() { String id = SVGURIReference::getTarget(href()); Element* targetElement = document()->getElementById(id); if (!targetElement) { // TODO: We want to deregister as pending resource, if our href() changed! // TODO: Move to svgAttributeChanged, once we're fixing use & the new dynamic update concept. document()->accessSVGExtensions()->addPendingResource(id, this); return; } // Do not build the shadow/instance tree for <use> elements living in a shadow tree. // The will be expanded soon anyway - see expandUseElementsInShadowTree(). Node* parent = parentNode(); while (parent) { if (parent->isShadowNode()) return; parent = parent->parentNode(); } SVGElement* target = 0; if (targetElement && targetElement->isSVGElement()) target = static_cast<SVGElement*>(targetElement); // Do not allow self-referencing. // 'target' may be null, if it's a non SVG namespaced element. if (!target || target == this) { m_targetElementInstance = 0; m_shadowTreeRootElement = 0; return; } // Why a seperated instance/shadow tree? SVG demands it: // The instance tree is accesable from JavaScript, and has to // expose a 1:1 copy of the referenced tree, whereas internally we need // to alter the tree for correct "use-on-symbol", "use-on-svg" support. // Build instance tree. Create root SVGElementInstance object for the first sub-tree node. // // Spec: If the 'use' element references a simple graphics element such as a 'rect', then there is only a // single SVGElementInstance object, and the correspondingElement attribute on this SVGElementInstance object // is the SVGRectElement that corresponds to the referenced 'rect' element. m_targetElementInstance = new SVGElementInstance(this, target); // Eventually enter recursion to build SVGElementInstance objects for the sub-tree children bool foundProblem = false; buildInstanceTree(target, m_targetElementInstance.get(), foundProblem); // SVG specification does not say a word about <use> & cycles. My view on this is: just ignore it! // Non-appearing <use> content is easier to debug, then half-appearing content. if (foundProblem) { m_targetElementInstance = 0; m_shadowTreeRootElement = 0; return; } // Assure instance tree building was successfull ASSERT(m_targetElementInstance); ASSERT(m_targetElementInstance->correspondingUseElement() == this); // Setup shadow tree root node m_shadowTreeRootElement = new SVGGElement(SVGNames::gTag, document()); m_shadowTreeRootElement->setInDocument(); m_shadowTreeRootElement->setShadowParentNode(this); // Spec: An additional transformation translate(x,y) is appended to the end // (i.e., right-side) of the transform attribute on the generated 'g', where x // and y represent the values of the x and y attributes on the 'use' element. if (x().value() != 0.0 || y().value() != 0.0) { String transformString = String::format("translate(%f, %f)", x().value(), y().value()); m_shadowTreeRootElement->setAttribute(SVGNames::transformAttr, transformString); } // Build shadow tree from instance tree // This also handles the special cases: <use> on <symbol>, <use> on <svg>. buildShadowTree(target, m_targetElementInstance.get()); #if ENABLE(SVG) && ENABLE(SVG_USE) // Expand all <use> elements in the shadow tree. // Expand means: replace the actual <use> element by what it references. expandUseElementsInShadowTree(m_shadowTreeRootElement.get()); // Expand all <symbol> elements in the shadow tree. // Expand means: replace the actual <symbol> element by the <svg> element. expandSymbolElementsInShadowTree(m_shadowTreeRootElement.get()); #endif // Now that the shadow tree is completly expanded, we can associate // shadow tree elements <-> instances in the instance tree. associateInstancesWithShadowTreeElements(m_shadowTreeRootElement->firstChild(), m_targetElementInstance.get()); // Eventually dump instance tree #ifdef DUMP_INSTANCE_TREE String text; unsigned int depth = 0; dumpInstanceTree(depth, text, m_targetElementInstance.get()); fprintf(stderr, "\nDumping <use> instance tree:\n%s\n", text.latin1().data()); #endif // Eventually dump shadow tree #ifdef DUMP_SHADOW_TREE ExceptionCode ec = 0; PassRefPtr<XMLSerializer> serializer = XMLSerializer::create(); String markup = serializer->serializeToString(m_shadowTreeRootElement.get(), ec); ASSERT(ec == 0); fprintf(stderr, "Dumping <use> shadow tree markup:\n%s\n", markup.latin1().data()); #endif // The DOM side is setup properly. Now we have to attach the root shadow // tree element manually - using attach() won't work for "shadow nodes". attachShadowTree(); }