зеркало из https://github.com/mozilla/gecko-dev.git
130 строки
4.4 KiB
C++
130 строки
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/HTMLAreaElement.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/dom/BindContext.h"
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#include "mozilla/dom/Document.h"
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#include "mozilla/dom/HTMLAnchorElement.h"
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#include "mozilla/dom/HTMLAreaElementBinding.h"
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#include "mozilla/EventDispatcher.h"
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#include "mozilla/EventStates.h"
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#include "mozilla/MemoryReporting.h"
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#include "nsWindowSizes.h"
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NS_IMPL_NS_NEW_HTML_ELEMENT(Area)
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namespace mozilla::dom {
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HTMLAreaElement::HTMLAreaElement(
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already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
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: nsGenericHTMLElement(std::move(aNodeInfo)), Link(this) {}
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HTMLAreaElement::~HTMLAreaElement() = default;
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NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED(HTMLAreaElement,
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nsGenericHTMLElement, Link)
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NS_IMPL_CYCLE_COLLECTION_INHERITED(HTMLAreaElement, nsGenericHTMLElement,
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mRelList)
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NS_IMPL_ELEMENT_CLONE(HTMLAreaElement)
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int32_t HTMLAreaElement::TabIndexDefault() { return 0; }
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void HTMLAreaElement::GetTarget(DOMString& aValue) {
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if (!GetAttr(kNameSpaceID_None, nsGkAtoms::target, aValue)) {
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GetBaseTarget(aValue);
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}
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}
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void HTMLAreaElement::GetEventTargetParent(EventChainPreVisitor& aVisitor) {
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GetEventTargetParentForAnchors(aVisitor);
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}
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nsresult HTMLAreaElement::PostHandleEvent(EventChainPostVisitor& aVisitor) {
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return PostHandleEventForAnchors(aVisitor);
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}
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bool HTMLAreaElement::IsLink(nsIURI** aURI) const { return IsHTMLLink(aURI); }
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void HTMLAreaElement::GetLinkTarget(nsAString& aTarget) {
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GetAttr(kNameSpaceID_None, nsGkAtoms::target, aTarget);
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if (aTarget.IsEmpty()) {
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GetBaseTarget(aTarget);
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}
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}
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nsDOMTokenList* HTMLAreaElement::RelList() {
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if (!mRelList) {
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mRelList = new nsDOMTokenList(this, nsGkAtoms::rel,
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HTMLAnchorElement::sSupportedRelValues);
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}
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return mRelList;
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}
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nsresult HTMLAreaElement::BindToTree(BindContext& aContext, nsINode& aParent) {
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Link::ResetLinkState(false, Link::ElementHasHref());
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nsresult rv = nsGenericHTMLElement::BindToTree(aContext, aParent);
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NS_ENSURE_SUCCESS(rv, rv);
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if (IsInComposedDoc()) {
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aContext.OwnerDoc().RegisterPendingLinkUpdate(this);
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}
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return rv;
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}
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void HTMLAreaElement::UnbindFromTree(bool aNullParent) {
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// Without removing the link state we risk a dangling pointer
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// in the mStyledLinks hashtable
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Link::ResetLinkState(false, Link::ElementHasHref());
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nsGenericHTMLElement::UnbindFromTree(aNullParent);
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}
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nsresult HTMLAreaElement::AfterSetAttr(int32_t aNamespaceID, nsAtom* aName,
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const nsAttrValue* aValue,
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const nsAttrValue* aOldValue,
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nsIPrincipal* aSubjectPrincipal,
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bool aNotify) {
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if (aNamespaceID == kNameSpaceID_None) {
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// This must happen after the attribute is set. We will need the updated
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// attribute value because notifying the document that content states have
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// changed will call IntrinsicState, which will try to get updated
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// information about the visitedness from Link.
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if (aName == nsGkAtoms::href) {
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Link::ResetLinkState(aNotify, !!aValue);
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}
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}
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return nsGenericHTMLElement::AfterSetAttr(
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aNamespaceID, aName, aValue, aOldValue, aSubjectPrincipal, aNotify);
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}
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void HTMLAreaElement::ToString(nsAString& aSource) { GetHref(aSource); }
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already_AddRefed<nsIURI> HTMLAreaElement::GetHrefURI() const {
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return GetHrefURIForAnchors();
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}
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EventStates HTMLAreaElement::IntrinsicState() const {
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return Link::LinkState() | nsGenericHTMLElement::IntrinsicState();
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}
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void HTMLAreaElement::AddSizeOfExcludingThis(nsWindowSizes& aSizes,
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size_t* aNodeSize) const {
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nsGenericHTMLElement::AddSizeOfExcludingThis(aSizes, aNodeSize);
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*aNodeSize += Link::SizeOfExcludingThis(aSizes.mState);
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}
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JSObject* HTMLAreaElement::WrapNode(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return HTMLAreaElement_Binding::Wrap(aCx, this, aGivenProto);
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}
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} // namespace mozilla::dom
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