void InspectorNodeFinder::searchUsingDOMTreeTraversal(Node* parentNode)
{
// Manual plain text search.
for (auto node = parentNode; node; node = NodeTraversal::next(node, parentNode)) {
switch (node->nodeType()) {
case Node::TEXT_NODE:
case Node::COMMENT_NODE:
case Node::CDATA_SECTION_NODE: {
if (node->nodeValue().findIgnoringCase(m_whitespaceTrimmedQuery) != notFound)
m_results.add(node);
break;
}
case Node::ELEMENT_NODE: {
if (matchesElement(*toElement(node)))
m_results.add(node);
// Search inside frame elements.
if (node->isFrameOwnerElement()) {
HTMLFrameOwnerElement* frameOwner = toHTMLFrameOwnerElement(node);
if (Document* document = frameOwner->contentDocument())
performSearch(document);
}
break;
}
default:
break;
}
}
}
static unsigned checkConnectedSubframeCountIsConsistent(Node& node)
{
unsigned count = 0;
if (node.isElementNode()) {
if (node.isFrameOwnerElement() && toHTMLFrameOwnerElement(node).contentFrame())
count++;
if (ElementShadow* shadow = toElement(node).shadow()) {
for (ShadowRoot* root = &shadow->youngestShadowRoot(); root; root = root->olderShadowRoot())
count += checkConnectedSubframeCountIsConsistent(*root);
}
}
for (Node* child = node.firstChild(); child; child = child->nextSibling())
count += checkConnectedSubframeCountIsConsistent(*child);
// If we undercount there's possibly a security bug since we'd leave frames
// in subtrees outside the document.
ASSERT(node.connectedSubframeCount() >= count);
// If we overcount it's safe, but not optimal because it means we'll traverse
// through the document in ChildFrameDisconnector looking for frames that have
// already been disconnected.
ASSERT(node.connectedSubframeCount() == count);
return count;
}
WebFrame* WebFrame::fromFrameOwnerElement(const WebElement& webElement) {
Element* element = webElement;
if (!element->isFrameOwnerElement())
return nullptr;
return fromFrame(toHTMLFrameOwnerElement(element)->contentFrame());
}
WebFrame* WebFrame::fromFrameOwnerElement(const WebElement& webElement)
{
Element* element = PassRefPtrWillBeRawPtr<Element>(webElement).get();
if (!element->isFrameOwnerElement())
return nullptr;
return fromFrame(toHTMLFrameOwnerElement(element)->contentFrame());
}
void Frame::disconnectOwnerElement()
{
if (m_owner) {
if (m_owner->isLocal())
toHTMLFrameOwnerElement(m_owner)->clearContentFrame();
}
m_owner = nullptr;
}
void Fullscreen::didEnterFullscreenForElement(Element* element) {
DCHECK(element);
if (!document()->isActive())
return;
if (m_fullScreenLayoutObject)
m_fullScreenLayoutObject->unwrapLayoutObject();
m_currentFullScreenElement = element;
// Create a placeholder block for a the full-screen element, to keep the page
// from reflowing when the element is removed from the normal flow. Only do
// this for a LayoutBox, as only a box will have a frameRect. The placeholder
// will be created in setFullScreenLayoutObject() during layout.
LayoutObject* layoutObject = m_currentFullScreenElement->layoutObject();
bool shouldCreatePlaceholder = layoutObject && layoutObject->isBox();
if (shouldCreatePlaceholder) {
m_savedPlaceholderFrameRect = toLayoutBox(layoutObject)->frameRect();
m_savedPlaceholderComputedStyle =
ComputedStyle::clone(layoutObject->styleRef());
}
// TODO(alexmos): When |m_forCrossProcessDescendant| is true, some of
// this layout work has already been done in another process, so it should
// not be necessary to repeat it here.
if (m_currentFullScreenElement != document()->documentElement())
LayoutFullScreen::wrapLayoutObject(
layoutObject, layoutObject ? layoutObject->parent() : 0, document());
// When |m_forCrossProcessDescendant| is true, m_currentFullScreenElement
// corresponds to the HTMLFrameOwnerElement for the out-of-process iframe
// that contains the actual fullscreen element. Hence, it must also set
// the ContainsFullScreenElement flag (so that it gains the
// -webkit-full-screen-ancestor style).
if (m_forCrossProcessDescendant) {
DCHECK(m_currentFullScreenElement->isFrameOwnerElement());
DCHECK(toHTMLFrameOwnerElement(m_currentFullScreenElement)
->contentFrame()
->isRemoteFrame());
m_currentFullScreenElement->setContainsFullScreenElement(true);
}
m_currentFullScreenElement
->setContainsFullScreenElementOnAncestorsCrossingFrameBoundaries(true);
document()->styleEngine().ensureFullscreenUAStyle();
m_currentFullScreenElement->pseudoStateChanged(CSSSelector::PseudoFullScreen);
// FIXME: This should not call updateStyleAndLayoutTree.
document()->updateStyleAndLayoutTree();
m_currentFullScreenElement->didBecomeFullscreenElement();
if (document()->frame())
document()->frame()->eventHandler().scheduleHoverStateUpdate();
m_eventQueueTimer.startOneShot(0, BLINK_FROM_HERE);
}
void WebFrameSerializerImpl::openTagToString(
Element* element,
SerializeDomParam* param)
{
bool needSkip;
StringBuilder result;
// Do pre action for open tag.
result.append(preActionBeforeSerializeOpenTag(element, param, &needSkip));
if (needSkip)
return;
// Add open tag
result.append('<');
result.append(element->nodeName().lower());
// Find out if this element owns a frame.
WebFrame* frame = nullptr;
if (element->isFrameOwnerElement()) {
frame = WebFrame::fromFrame(
toHTMLFrameOwnerElement(element)->contentFrame());
}
// Go through all attributes and serialize them.
for (const auto& it : element->attributes()) {
const QualifiedName& attrName = it.name();
String attrValue = it.value();
// Rewrite the attribute value if requested.
if (element->hasLegalLinkAttribute(attrName)) {
// For links start with "javascript:", we do not change it.
if (!attrValue.startsWith("javascript:", TextCaseInsensitive)) {
// Get the absolute link.
KURL completeURL = param->document->completeURL(attrValue);
// Check whether we have a local file to link to.
WebString rewrittenLink;
if (frame && m_delegate->rewriteFrameSource(frame, &rewrittenLink)) {
attrValue = rewrittenLink;
} else if (m_delegate->rewriteLink(completeURL, &rewrittenLink)) {
attrValue = rewrittenLink;
} else {
attrValue = completeURL;
}
}
}
appendAttribute(result, param->isHTMLDocument, attrName.toString(), attrValue);
}
// Do post action for open tag.
String addedContents = postActionAfterSerializeOpenTag(element, param);
// Complete the open tag for element when it has child/children.
if (element->hasChildren() || param->haveAddedContentsBeforeEnd)
result.append('>');
// Append the added contents generate in post action of open tag.
result.append(addedContents);
// Save the result to data buffer.
saveHTMLContentToBuffer(result.toString(), param);
}
Widget* LayoutPart::widget() const
{
// Plugin widgets are stored in their DOM node.
Element* element = toElement(node());
if (element && element->isFrameOwnerElement())
return toHTMLFrameOwnerElement(element)->ownedWidget();
return nullptr;
}
Widget* RenderWidget::widget() const
{
// Plugin widgets are stored in their DOM node. This includes HTMLAppletElement.
Element* element = toElement(node());
if (element && element->isFrameOwnerElement())
return toHTMLFrameOwnerElement(element)->ownedWidget();
return 0;
}
PaintLayerCompositor* PaintLayerCompositor::frameContentsCompositor(LayoutPart* layoutObject)
{
if (!layoutObject->node()->isFrameOwnerElement())
return nullptr;
HTMLFrameOwnerElement* element = toHTMLFrameOwnerElement(layoutObject->node());
if (Document* contentDocument = element->contentDocument()) {
if (LayoutView* view = contentDocument->layoutView())
return view->compositor();
}
return nullptr;
}
void RemoteFrame::setRemotePlatformLayer(WebLayer* layer)
{
if (m_remotePlatformLayer)
GraphicsLayer::unregisterContentsLayer(m_remotePlatformLayer);
m_remotePlatformLayer = layer;
if (m_remotePlatformLayer)
GraphicsLayer::registerContentsLayer(layer);
ASSERT(owner());
toHTMLFrameOwnerElement(owner())->setNeedsCompositingUpdate();
if (LayoutPart* layoutObject = ownerLayoutObject())
layoutObject->layer()->updateSelfPaintingLayer();
}
void LayoutPart::willBeDestroyed()
{
frameView()->removePart(this);
if (AXObjectCache* cache = document().existingAXObjectCache()) {
cache->childrenChanged(this->parent());
cache->remove(this);
}
Element* element = toElement(node());
if (element && element->isFrameOwnerElement())
toHTMLFrameOwnerElement(element)->setWidget(nullptr);
LayoutReplaced::willBeDestroyed();
}
void ChildFrameDisconnector::collectFrameOwners(Node& root)
{
if (!root.connectedSubframeCount())
return;
if (root.isHTMLElement() && root.isFrameOwnerElement())
m_frameOwners.append(&toHTMLFrameOwnerElement(root));
for (Node* child = root.firstChild(); child; child = child->nextSibling())
collectFrameOwners(*child);
ElementShadow* shadow = root.isElementNode() ? toElement(root).shadow() : 0;
if (shadow)
collectFrameOwners(*shadow);
}
void SerializerMarkupAccumulator::appendCustomAttributes(StringBuilder& out, const Element& element, Namespaces* namespaces)
{
if (!element.isFrameOwnerElement())
return;
const HTMLFrameOwnerElement& frameOwner = toHTMLFrameOwnerElement(element);
Frame* frame = frameOwner.contentFrame();
if (!frame)
return;
URL url = frame->document()->url();
if (url.isValid() && !url.isBlankURL())
return;
// We need to give a fake location to blank frames so they can be referenced by the serialized frame.
url = m_serializer.urlForBlankFrame(frame);
appendAttribute(out, element, Attribute(frameOwnerURLAttributeName(frameOwner), url.string()), namespaces);
}
void WebRemoteFrameImpl::setReplicatedOrigin(const WebSecurityOrigin& origin) const
{
ASSERT(frame());
frame()->securityContext()->setReplicatedOrigin(origin);
// If the origin of a remote frame changed, the accessibility object for the owner
// element now points to a different child.
//
// TODO(dmazzoni, dcheng): there's probably a better way to solve this.
// Run SitePerProcessAccessibilityBrowserTest.TwoCrossSiteNavigations to
// ensure an alternate fix works. http://crbug.com/566222
FrameOwner* owner = frame()->owner();
if (owner && owner->isLocal()) {
HTMLElement* ownerElement = toHTMLFrameOwnerElement(owner);
AXObjectCache* cache = ownerElement->document().existingAXObjectCache();
if (cache)
cache->childrenChanged(ownerElement);
}
}
static LayoutVideo* findFullscreenVideoLayoutObject(Document& document)
{
// Recursively find the document that is in fullscreen.
Element* fullscreenElement = Fullscreen::fullscreenElementFrom(document);
Document* contentDocument = &document;
while (fullscreenElement && fullscreenElement->isFrameOwnerElement()) {
contentDocument = toHTMLFrameOwnerElement(fullscreenElement)->contentDocument();
if (!contentDocument)
return nullptr;
fullscreenElement = Fullscreen::fullscreenElementFrom(*contentDocument);
}
// Get the current fullscreen element from the document.
fullscreenElement = Fullscreen::currentFullScreenElementFrom(*contentDocument);
if (!isHTMLVideoElement(fullscreenElement))
return nullptr;
LayoutObject* layoutObject = fullscreenElement->layoutObject();
if (!layoutObject)
return nullptr;
return toLayoutVideo(layoutObject);
}
Element* TopDocumentRootScrollerController::findGlobalRootScrollerElement() {
if (!topDocument())
return nullptr;
DCHECK(topDocument()->rootScrollerController());
Element* element =
topDocument()->rootScrollerController()->effectiveRootScroller();
while (element && element->isFrameOwnerElement()) {
HTMLFrameOwnerElement* frameOwner = toHTMLFrameOwnerElement(element);
DCHECK(frameOwner);
Document* iframeDocument = frameOwner->contentDocument();
if (!iframeDocument)
return element;
DCHECK(iframeDocument->rootScrollerController());
element = iframeDocument->rootScrollerController()->effectiveRootScroller();
}
return element;
}
bool LayoutPart::requiresAcceleratedCompositing() const
{
// There are two general cases in which we can return true. First, if this is a plugin
// LayoutObject and the plugin has a layer, then we need a layer. Second, if this is
// a LayoutObject with a contentDocument and that document needs a layer, then we need
// a layer.
if (widget() && widget()->isPluginView() && toPluginView(widget())->platformLayer())
return true;
if (!node() || !node()->isFrameOwnerElement())
return false;
HTMLFrameOwnerElement* element = toHTMLFrameOwnerElement(node());
if (element->contentFrame() && element->contentFrame()->isRemoteFrame())
return true;
if (Document* contentDocument = element->contentDocument()) {
if (LayoutView* view = contentDocument->layoutView())
return view->usesCompositing();
}
return false;
}
static Node* nodeInsideFrame(Node* node)
{
if (node->isFrameOwnerElement())
return toHTMLFrameOwnerElement(node)->contentDocument();
return 0;
}
void WebFrameSerializerImpl::openTagToString(
Element* element,
SerializeDomParam* param)
{
bool needSkip;
StringBuilder result;
// Do pre action for open tag.
result.append(preActionBeforeSerializeOpenTag(element, param, &needSkip));
if (needSkip)
return;
// Add open tag
result.append('<');
result.append(element->nodeName().lower());
// Find out if we need to do frame-specific link rewriting.
WebFrame* frame = nullptr;
if (element->isFrameOwnerElement()) {
frame = WebFrame::fromFrame(
toHTMLFrameOwnerElement(element)->contentFrame());
}
WebString rewrittenFrameLink;
bool shouldRewriteFrameSrc =
frame && m_delegate->rewriteFrameSource(frame, &rewrittenFrameLink);
bool didRewriteFrameSrc = false;
// Go through all attributes and serialize them.
for (const auto& it : element->attributes()) {
const QualifiedName& attrName = it.name();
String attrValue = it.value();
// Skip srcdoc attribute if we will emit src attribute (for frames).
if (shouldRewriteFrameSrc && attrName == HTMLNames::srcdocAttr)
continue;
// Rewrite the attribute value if requested.
if (element->hasLegalLinkAttribute(attrName)) {
// For links start with "javascript:", we do not change it.
if (!attrValue.startsWith("javascript:", TextCaseInsensitive)) {
// Get the absolute link.
KURL completeURL = param->document->completeURL(attrValue);
// Check whether we have a local file to link to.
WebString rewrittenURL;
if (shouldRewriteFrameSrc) {
attrValue = rewrittenFrameLink;
didRewriteFrameSrc = true;
} else if (m_delegate->rewriteLink(completeURL, &rewrittenURL)) {
attrValue = rewrittenURL;
} else {
attrValue = completeURL;
}
}
}
appendAttribute(result, param->isHTMLDocument, attrName.toString(), attrValue);
}
// For frames where link rewriting was requested, ensure that src attribute
// is written even if the original document didn't have that attribute
// (mainly needed for iframes with srcdoc, but with no src attribute).
if (shouldRewriteFrameSrc && !didRewriteFrameSrc && isHTMLIFrameElement(element)) {
appendAttribute(
result, param->isHTMLDocument, HTMLNames::srcAttr.toString(), rewrittenFrameLink);
}
// Do post action for open tag.
String addedContents = postActionAfterSerializeOpenTag(element, param);
// Complete the open tag for element when it has child/children.
if (element->hasChildren() || param->haveAddedContentsBeforeEnd)
result.append('>');
// Append the added contents generate in post action of open tag.
result.append(addedContents);
// Save the result to data buffer.
saveHTMLContentToBuffer(result.toString(), param);
}
HTMLFrameOwnerElement* frameOwnerElement(FocusCandidate& candidate)
{
return candidate.isFrameOwnerElement() ? toHTMLFrameOwnerElement(candidate.visibleNode) : nullptr;
};
PassRefPtr<LegacyWebArchive> LegacyWebArchive::create(const String& markupString, Frame* frame, const Vector<Node*>& nodes, FrameFilter* frameFilter)
{
ASSERT(frame);
const ResourceResponse& response = frame->loader().documentLoader()->response();
URL responseURL = response.url();
// it's possible to have a response without a URL here
// <rdar://problem/5454935>
if (responseURL.isNull())
responseURL = URL(ParsedURLString, emptyString());
RefPtr<ArchiveResource> mainResource = ArchiveResource::create(utf8Buffer(markupString), responseURL, response.mimeType(), "UTF-8", frame->tree().uniqueName());
Vector<PassRefPtr<LegacyWebArchive>> subframeArchives;
Vector<PassRefPtr<ArchiveResource>> subresources;
HashSet<URL> uniqueSubresources;
size_t nodesSize = nodes.size();
for (size_t i = 0; i < nodesSize; ++i) {
Node& node = *nodes[i];
Frame* childFrame;
if ((isHTMLFrameElement(node) || isHTMLIFrameElement(node) || isHTMLObjectElement(node))
&& (childFrame = toHTMLFrameOwnerElement(node).contentFrame())) {
if (frameFilter && !frameFilter->shouldIncludeSubframe(childFrame))
continue;
RefPtr<LegacyWebArchive> subframeArchive = create(childFrame->document(), frameFilter);
if (subframeArchive)
subframeArchives.append(subframeArchive);
else
LOG_ERROR("Unabled to archive subframe %s", childFrame->tree().uniqueName().string().utf8().data());
} else {
ListHashSet<URL> subresourceURLs;
node.getSubresourceURLs(subresourceURLs);
DocumentLoader* documentLoader = frame->loader().documentLoader();
ListHashSet<URL>::iterator iterEnd = subresourceURLs.end();
for (ListHashSet<URL>::iterator iter = subresourceURLs.begin(); iter != iterEnd; ++iter) {
const URL& subresourceURL = *iter;
if (uniqueSubresources.contains(subresourceURL))
continue;
uniqueSubresources.add(subresourceURL);
RefPtr<ArchiveResource> resource = documentLoader->subresource(subresourceURL);
if (resource) {
subresources.append(resource.release());
continue;
}
ResourceRequest request(subresourceURL);
#if ENABLE(CACHE_PARTITIONING)
request.setCachePartition(frame->document()->topOrigin()->cachePartition());
#endif
CachedResource* cachedResource = memoryCache()->resourceForRequest(request);
if (cachedResource) {
ResourceBuffer* data = cachedResource->resourceBuffer();
resource = ArchiveResource::create(data ? data->sharedBuffer() : 0, subresourceURL, cachedResource->response());
if (resource) {
subresources.append(resource.release());
continue;
}
}
// FIXME: should do something better than spew to console here
LOG_ERROR("Failed to archive subresource for %s", subresourceURL.string().utf8().data());
}
}
}
// Add favicon if one exists for this page, if we are archiving the entire page.
if (nodesSize && nodes[0]->isDocumentNode() && iconDatabase().isEnabled()) {
const String& iconURL = iconDatabase().synchronousIconURLForPageURL(responseURL);
if (!iconURL.isEmpty() && iconDatabase().synchronousIconDataKnownForIconURL(iconURL)) {
if (Image* iconImage = iconDatabase().synchronousIconForPageURL(responseURL, IntSize(16, 16))) {
if (RefPtr<ArchiveResource> resource = ArchiveResource::create(iconImage->data(), URL(ParsedURLString, iconURL), "image/x-icon", "", ""))
subresources.append(resource.release());
}
}
}
return create(mainResource.release(), subresources, subframeArchives);
}
HTMLFrameOwnerElement* Frame::deprecatedLocalOwner() const
{
return m_owner && m_owner->isLocal() ? toHTMLFrameOwnerElement(m_owner) : nullptr;
}
