static inline LinkHash linkHashForElement(const Element& element, const AtomicString& attribute = AtomicString())
{
DCHECK(attribute.isNull() || linkAttribute(element) == attribute);
if (isHTMLAnchorElement(element))
return toHTMLAnchorElement(element).visitedLinkHash();
return visitedLinkHash(element.document().baseURL(), attribute.isNull() ? linkAttribute(element) : attribute);
}
static void invalidateStyleForAllLinksRecursively(Node& rootNode, bool invalidateVisitedLinkHashes)
{
for (Node& node : NodeTraversal::startsAt(rootNode)) {
if (node.isLink()) {
if (invalidateVisitedLinkHashes && isHTMLAnchorElement(node))
toHTMLAnchorElement(node).invalidateCachedVisitedLinkHash();
toElement(node).pseudoStateChanged(CSSSelector::PseudoLink);
toElement(node).pseudoStateChanged(CSSSelector::PseudoVisited);
toElement(node).pseudoStateChanged(CSSSelector::PseudoAnyLink);
}
if (isShadowHost(&node)) {
for (ShadowRoot* root = node.youngestShadowRoot(); root; root = root->olderShadowRoot())
invalidateStyleForAllLinksRecursively(*root, invalidateVisitedLinkHashes);
}
}
}
static HTMLElement* highestAncestorToWrapMarkup(const Range* range, EAnnotateForInterchange shouldAnnotate, Node* constrainingAncestor)
{
Node* commonAncestor = range->commonAncestorContainer();
ASSERT(commonAncestor);
HTMLElement* specialCommonAncestor = 0;
Node* checkAncestor = specialCommonAncestor ? specialCommonAncestor : commonAncestor;
if (checkAncestor->renderer()) {
HTMLElement* newSpecialCommonAncestor = toHTMLElement(highestEnclosingNodeOfType(firstPositionInNode(checkAncestor), &isPresentationalHTMLElement, CanCrossEditingBoundary, constrainingAncestor));
if (newSpecialCommonAncestor)
specialCommonAncestor = newSpecialCommonAncestor;
}
if (HTMLAnchorElement* enclosingAnchor = toHTMLAnchorElement(enclosingElementWithTag(firstPositionInNode(specialCommonAncestor ? specialCommonAncestor : commonAncestor), HTMLNames::aTag)))
specialCommonAncestor = enclosingAnchor;
return specialCommonAncestor;
}
static HTMLElement* highestAncestorToWrapMarkup(
const PositionTemplate<Strategy>& startPosition,
const PositionTemplate<Strategy>& endPosition,
EAnnotateForInterchange shouldAnnotate,
Node* constrainingAncestor) {
Node* firstNode = startPosition.nodeAsRangeFirstNode();
// For compatibility reason, we use container node of start and end
// positions rather than first node and last node in selection.
Node* commonAncestor =
Strategy::commonAncestor(*startPosition.computeContainerNode(),
*endPosition.computeContainerNode());
DCHECK(commonAncestor);
HTMLElement* specialCommonAncestor = nullptr;
if (shouldAnnotate == AnnotateForInterchange) {
// Include ancestors that aren't completely inside the range but are
// required to retain the structure and appearance of the copied markup.
specialCommonAncestor =
ancestorToRetainStructureAndAppearance(commonAncestor);
if (Node* parentListNode = enclosingNodeOfType(
firstPositionInOrBeforeNode(firstNode), isListItem)) {
EphemeralRangeTemplate<Strategy> markupRange =
EphemeralRangeTemplate<Strategy>(startPosition, endPosition);
EphemeralRangeTemplate<Strategy> nodeRange = normalizeRange(
EphemeralRangeTemplate<Strategy>::rangeOfContents(*parentListNode));
if (nodeRange == markupRange) {
ContainerNode* ancestor = parentListNode->parentNode();
while (ancestor && !isHTMLListElement(ancestor))
ancestor = ancestor->parentNode();
specialCommonAncestor = toHTMLElement(ancestor);
}
}
// Retain the Mail quote level by including all ancestor mail block quotes.
if (HTMLQuoteElement* highestMailBlockquote =
toHTMLQuoteElement(highestEnclosingNodeOfType(
firstPositionInOrBeforeNode(firstNode),
isMailHTMLBlockquoteElement, CanCrossEditingBoundary)))
specialCommonAncestor = highestMailBlockquote;
}
Node* checkAncestor =
specialCommonAncestor ? specialCommonAncestor : commonAncestor;
if (checkAncestor->layoutObject()) {
HTMLElement* newSpecialCommonAncestor =
toHTMLElement(highestEnclosingNodeOfType(
Position::firstPositionInNode(checkAncestor),
&isPresentationalHTMLElement, CanCrossEditingBoundary,
constrainingAncestor));
if (newSpecialCommonAncestor)
specialCommonAncestor = newSpecialCommonAncestor;
}
// If a single tab is selected, commonAncestor will be a text node inside a
// tab span. If two or more tabs are selected, commonAncestor will be the tab
// span. In either case, if there is a specialCommonAncestor already, it will
// necessarily be above any tab span that needs to be included.
if (!specialCommonAncestor && isTabHTMLSpanElementTextNode(commonAncestor))
specialCommonAncestor =
toHTMLSpanElement(Strategy::parent(*commonAncestor));
if (!specialCommonAncestor && isTabHTMLSpanElement(commonAncestor))
specialCommonAncestor = toHTMLSpanElement(commonAncestor);
if (HTMLAnchorElement* enclosingAnchor =
toHTMLAnchorElement(enclosingElementWithTag(
Position::firstPositionInNode(specialCommonAncestor
? specialCommonAncestor
: commonAncestor),
aTag)))
specialCommonAncestor = enclosingAnchor;
return specialCommonAncestor;
}
void ContextMenuClientImpl::showContextMenu(const WebCore::ContextMenu* defaultMenu)
{
// Displaying the context menu in this function is a big hack as we don't
// have context, i.e. whether this is being invoked via a script or in
// response to user input (Mouse event WM_RBUTTONDOWN,
// Keyboard events KeyVK_APPS, Shift+F10). Check if this is being invoked
// in response to the above input events before popping up the context menu.
if (!m_webView->contextMenuAllowed())
return;
HitTestResult r = m_webView->page()->contextMenuController().hitTestResult();
LocalFrame* selectedFrame = r.innerNodeFrame();
WebContextMenuData data;
IntPoint mousePoint = selectedFrame->view()->contentsToWindow(r.roundedPointInInnerNodeFrame());
// FIXME(bokan): crbug.com/371902 - We shouldn't be making these scale
// related coordinate transformatios in an ad hoc way.
PinchViewport& pinchViewport = selectedFrame->host()->pinchViewport();
mousePoint -= flooredIntSize(pinchViewport.visibleRect().location());
mousePoint.scale(m_webView->pageScaleFactor(), m_webView->pageScaleFactor());
data.mousePosition = mousePoint;
// Compute edit flags.
data.editFlags = WebContextMenuData::CanDoNone;
if (toLocalFrame(m_webView->focusedWebCoreFrame())->editor().canUndo())
data.editFlags |= WebContextMenuData::CanUndo;
if (toLocalFrame(m_webView->focusedWebCoreFrame())->editor().canRedo())
data.editFlags |= WebContextMenuData::CanRedo;
if (toLocalFrame(m_webView->focusedWebCoreFrame())->editor().canCut())
data.editFlags |= WebContextMenuData::CanCut;
if (toLocalFrame(m_webView->focusedWebCoreFrame())->editor().canCopy())
data.editFlags |= WebContextMenuData::CanCopy;
if (toLocalFrame(m_webView->focusedWebCoreFrame())->editor().canPaste())
data.editFlags |= WebContextMenuData::CanPaste;
if (toLocalFrame(m_webView->focusedWebCoreFrame())->editor().canDelete())
data.editFlags |= WebContextMenuData::CanDelete;
// We can always select all...
data.editFlags |= WebContextMenuData::CanSelectAll;
data.editFlags |= WebContextMenuData::CanTranslate;
// Links, Images, Media tags, and Image/Media-Links take preference over
// all else.
data.linkURL = r.absoluteLinkURL();
if (isHTMLCanvasElement(r.innerNonSharedNode())) {
data.mediaType = WebContextMenuData::MediaTypeCanvas;
} else if (!r.absoluteImageURL().isEmpty()) {
data.srcURL = r.absoluteImageURL();
data.mediaType = WebContextMenuData::MediaTypeImage;
data.mediaFlags |= WebContextMenuData::MediaCanPrint;
} else if (!r.absoluteMediaURL().isEmpty()) {
data.srcURL = r.absoluteMediaURL();
// We know that if absoluteMediaURL() is not empty, then this
// is a media element.
HTMLMediaElement* mediaElement = toHTMLMediaElement(r.innerNonSharedNode());
if (isHTMLVideoElement(*mediaElement))
data.mediaType = WebContextMenuData::MediaTypeVideo;
else if (isHTMLAudioElement(*mediaElement))
data.mediaType = WebContextMenuData::MediaTypeAudio;
if (mediaElement->error())
data.mediaFlags |= WebContextMenuData::MediaInError;
if (mediaElement->paused())
data.mediaFlags |= WebContextMenuData::MediaPaused;
if (mediaElement->muted())
data.mediaFlags |= WebContextMenuData::MediaMuted;
if (mediaElement->loop())
data.mediaFlags |= WebContextMenuData::MediaLoop;
if (mediaElement->supportsSave())
data.mediaFlags |= WebContextMenuData::MediaCanSave;
if (mediaElement->hasAudio())
data.mediaFlags |= WebContextMenuData::MediaHasAudio;
// Media controls can be toggled only for video player. If we toggle
// controls for audio then the player disappears, and there is no way to
// return it back. Don't set this bit for fullscreen video, since
// toggling is ignored in that case.
if (mediaElement->hasVideo() && !mediaElement->isFullscreen())
data.mediaFlags |= WebContextMenuData::MediaCanToggleControls;
if (mediaElement->controls())
data.mediaFlags |= WebContextMenuData::MediaControls;
} else if (isHTMLObjectElement(*r.innerNonSharedNode()) || isHTMLEmbedElement(*r.innerNonSharedNode())) {
RenderObject* object = r.innerNonSharedNode()->renderer();
if (object && object->isWidget()) {
Widget* widget = toRenderWidget(object)->widget();
if (widget && widget->isPluginContainer()) {
data.mediaType = WebContextMenuData::MediaTypePlugin;
WebPluginContainerImpl* plugin = toWebPluginContainerImpl(widget);
WebString text = plugin->plugin()->selectionAsText();
if (!text.isEmpty()) {
data.selectedText = text;
data.editFlags |= WebContextMenuData::CanCopy;
}
data.editFlags &= ~WebContextMenuData::CanTranslate;
data.linkURL = plugin->plugin()->linkAtPosition(data.mousePosition);
if (plugin->plugin()->supportsPaginatedPrint())
data.mediaFlags |= WebContextMenuData::MediaCanPrint;
HTMLPlugInElement* pluginElement = toHTMLPlugInElement(r.innerNonSharedNode());
data.srcURL = pluginElement->document().completeURL(pluginElement->url());
data.mediaFlags |= WebContextMenuData::MediaCanSave;
// Add context menu commands that are supported by the plugin.
if (plugin->plugin()->canRotateView())
data.mediaFlags |= WebContextMenuData::MediaCanRotate;
}
}
}
// An image can to be null for many reasons, like being blocked, no image
// data received from server yet.
data.hasImageContents =
(data.mediaType == WebContextMenuData::MediaTypeImage)
&& r.image() && !(r.image()->isNull());
// If it's not a link, an image, a media element, or an image/media link,
// show a selection menu or a more generic page menu.
if (selectedFrame->document()->loader())
data.frameEncoding = selectedFrame->document()->encodingName();
// Send the frame and page URLs in any case.
data.pageURL = urlFromFrame(m_webView->mainFrameImpl()->frame());
if (selectedFrame != m_webView->mainFrameImpl()->frame()) {
data.frameURL = urlFromFrame(selectedFrame);
RefPtr<HistoryItem> historyItem = selectedFrame->loader().currentItem();
if (historyItem)
data.frameHistoryItem = WebHistoryItem(historyItem);
}
if (r.isSelected()) {
if (!isHTMLInputElement(*r.innerNonSharedNode()) || !toHTMLInputElement(r.innerNonSharedNode())->isPasswordField())
data.selectedText = selectedFrame->selectedText().stripWhiteSpace();
}
if (r.isContentEditable()) {
data.isEditable = true;
// When Chrome enables asynchronous spellchecking, its spellchecker adds spelling markers to misspelled
// words and attaches suggestions to these markers in the background. Therefore, when a user right-clicks
// a mouse on a word, Chrome just needs to find a spelling marker on the word instead of spellchecking it.
if (selectedFrame->settings() && selectedFrame->settings()->asynchronousSpellCheckingEnabled()) {
DocumentMarker marker;
data.misspelledWord = selectMisspellingAsync(selectedFrame, marker);
data.misspellingHash = marker.hash();
if (marker.description().length()) {
Vector<String> suggestions;
marker.description().split('\n', suggestions);
data.dictionarySuggestions = suggestions;
} else if (m_webView->spellCheckClient()) {
int misspelledOffset, misspelledLength;
m_webView->spellCheckClient()->spellCheck(data.misspelledWord, misspelledOffset, misspelledLength, &data.dictionarySuggestions);
}
} else {
data.isSpellCheckingEnabled =
toLocalFrame(m_webView->focusedWebCoreFrame())->spellChecker().isContinuousSpellCheckingEnabled();
// Spellchecking might be enabled for the field, but could be disabled on the node.
if (toLocalFrame(m_webView->focusedWebCoreFrame())->spellChecker().isSpellCheckingEnabledInFocusedNode()) {
data.misspelledWord = selectMisspelledWord(selectedFrame);
if (m_webView->spellCheckClient()) {
int misspelledOffset, misspelledLength;
m_webView->spellCheckClient()->spellCheck(
data.misspelledWord, misspelledOffset, misspelledLength,
&data.dictionarySuggestions);
if (!misspelledLength)
data.misspelledWord.reset();
}
}
}
HTMLFormElement* form = selectedFrame->selection().currentForm();
if (form && isHTMLInputElement(*r.innerNonSharedNode())) {
HTMLInputElement& selectedElement = toHTMLInputElement(*r.innerNonSharedNode());
WebSearchableFormData ws = WebSearchableFormData(WebFormElement(form), WebInputElement(&selectedElement));
if (ws.url().isValid())
data.keywordURL = ws.url();
}
}
if (selectedFrame->editor().selectionHasStyle(CSSPropertyDirection, "ltr") != FalseTriState)
data.writingDirectionLeftToRight |= WebContextMenuData::CheckableMenuItemChecked;
if (selectedFrame->editor().selectionHasStyle(CSSPropertyDirection, "rtl") != FalseTriState)
data.writingDirectionRightToLeft |= WebContextMenuData::CheckableMenuItemChecked;
// Now retrieve the security info.
DocumentLoader* dl = selectedFrame->loader().documentLoader();
WebDataSource* ds = WebDataSourceImpl::fromDocumentLoader(dl);
if (ds)
data.securityInfo = ds->response().securityInfo();
data.referrerPolicy = static_cast<WebReferrerPolicy>(selectedFrame->document()->referrerPolicy());
// Filter out custom menu elements and add them into the data.
populateCustomMenuItems(defaultMenu, &data);
// Extract suggested filename for saving file.
if (isHTMLAnchorElement(r.URLElement())) {
HTMLAnchorElement* anchor = toHTMLAnchorElement(r.URLElement());
data.suggestedFilename = anchor->fastGetAttribute(HTMLNames::downloadAttr);
}
data.node = r.innerNonSharedNode();
WebLocalFrameImpl* selectedWebFrame = WebLocalFrameImpl::fromFrame(selectedFrame);
if (selectedWebFrame->client())
selectedWebFrame->client()->showContextMenu(data);
}
