зеркало из https://github.com/mozilla/gecko-dev.git
123 строки
4.2 KiB
C++
123 строки
4.2 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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#ifndef mozilla_dom_HTMLSourceElement_h
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#define mozilla_dom_HTMLSourceElement_h
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#include "mozilla/Attributes.h"
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#include "nsGenericHTMLElement.h"
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#include "mozilla/dom/HTMLMediaElement.h"
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class nsAttrValue;
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namespace mozilla {
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namespace dom {
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class MediaList;
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class HTMLSourceElement final : public nsGenericHTMLElement {
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public:
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explicit HTMLSourceElement(
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already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
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// nsISupports
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(HTMLSourceElement,
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nsGenericHTMLElement)
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NS_IMPL_FROMNODE_HTML_WITH_TAG(HTMLSourceElement, source)
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virtual nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override;
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// Override BindToTree() so that we can trigger a load when we add a
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// child source element.
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virtual nsresult BindToTree(Document* aDocument, nsIContent* aParent,
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nsIContent* aBindingParent) override;
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// If this element's media attr matches for its owner document. Returns true
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// if no media attr was set.
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bool MatchesCurrentMedia();
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// True if a source tag would match the given media attribute for the
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// specified document. Used by the preloader to determine valid <source> tags
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// prior to DOM creation.
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static bool WouldMatchMediaForDocument(const nsAString& aMediaStr,
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const Document* aDocument);
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// Return the MediaSource object if any associated with the src attribute
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// when it was set.
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MediaSource* GetSrcMediaSource() { return mSrcMediaSource; };
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// WebIDL
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void GetSrc(nsString& aSrc) { GetURIAttr(nsGkAtoms::src, nullptr, aSrc); }
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void SetSrc(const nsAString& aSrc, nsIPrincipal* aTriggeringPrincipal,
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mozilla::ErrorResult& rv) {
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SetHTMLAttr(nsGkAtoms::src, aSrc, aTriggeringPrincipal, rv);
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}
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nsIPrincipal* GetSrcTriggeringPrincipal() const {
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return mSrcTriggeringPrincipal;
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}
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nsIPrincipal* GetSrcsetTriggeringPrincipal() const {
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return mSrcsetTriggeringPrincipal;
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}
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void GetType(DOMString& aType) { GetHTMLAttr(nsGkAtoms::type, aType); }
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void SetType(const nsAString& aType, ErrorResult& rv) {
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SetHTMLAttr(nsGkAtoms::type, aType, rv);
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}
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void GetSrcset(DOMString& aSrcset) {
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GetHTMLAttr(nsGkAtoms::srcset, aSrcset);
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}
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void SetSrcset(const nsAString& aSrcset, nsIPrincipal* aTriggeringPrincipal,
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mozilla::ErrorResult& rv) {
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SetHTMLAttr(nsGkAtoms::srcset, aSrcset, aTriggeringPrincipal, rv);
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}
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void GetSizes(DOMString& aSizes) { GetHTMLAttr(nsGkAtoms::sizes, aSizes); }
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void SetSizes(const nsAString& aSizes, mozilla::ErrorResult& rv) {
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SetHTMLAttr(nsGkAtoms::sizes, aSizes, rv);
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}
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void GetMedia(DOMString& aMedia) { GetHTMLAttr(nsGkAtoms::media, aMedia); }
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void SetMedia(const nsAString& aMedia, mozilla::ErrorResult& rv) {
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SetHTMLAttr(nsGkAtoms::media, aMedia, rv);
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}
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protected:
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virtual ~HTMLSourceElement();
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virtual JSObject* WrapNode(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) override;
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protected:
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virtual nsresult 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* aMaybeScriptedPrincipal,
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bool aNotify) override;
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private:
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RefPtr<MediaList> mMediaList;
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RefPtr<MediaSource> mSrcMediaSource;
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// The triggering principal for the src attribute.
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nsCOMPtr<nsIPrincipal> mSrcTriggeringPrincipal;
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// The triggering principal for the srcset attribute.
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nsCOMPtr<nsIPrincipal> mSrcsetTriggeringPrincipal;
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// Generates a new MediaList using the given input
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void UpdateMediaList(const nsAttrValue* aValue);
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_HTMLSourceElement_h
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