зеркало из https://github.com/mozilla/gecko-dev.git
121 строка
4.5 KiB
C++
121 строка
4.5 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_CanonicalBrowsingContext_h
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#define mozilla_dom_CanonicalBrowsingContext_h
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#include "mozilla/dom/BrowsingContext.h"
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#include "mozilla/RefPtr.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsWrapperCache.h"
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#include "nsTHashtable.h"
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#include "nsHashKeys.h"
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class nsIDocShell;
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namespace mozilla {
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namespace dom {
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class WindowGlobalParent;
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// CanonicalBrowsingContext is a BrowsingContext living in the parent
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// process, with whatever extra data that a BrowsingContext in the
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// parent needs.
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class CanonicalBrowsingContext final : public BrowsingContext {
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public:
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static already_AddRefed<CanonicalBrowsingContext> Get(uint64_t aId);
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static CanonicalBrowsingContext* Cast(BrowsingContext* aContext);
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static const CanonicalBrowsingContext* Cast(const BrowsingContext* aContext);
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bool IsOwnedByProcess(uint64_t aProcessId) const {
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return mProcessId == aProcessId;
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}
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uint64_t OwnerProcessId() const { return mProcessId; }
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ContentParent* GetContentParent() const;
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void GetCurrentRemoteType(nsAString& aRemoteType, ErrorResult& aRv) const;
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void SetOwnerProcessId(uint64_t aProcessId);
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void GetWindowGlobals(nsTArray<RefPtr<WindowGlobalParent>>& aWindows);
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// Called by WindowGlobalParent to register and unregister window globals.
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void RegisterWindowGlobal(WindowGlobalParent* aGlobal);
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void UnregisterWindowGlobal(WindowGlobalParent* aGlobal);
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// The current active WindowGlobal.
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WindowGlobalParent* GetCurrentWindowGlobal() const {
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return mCurrentWindowGlobal;
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}
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void SetCurrentWindowGlobal(WindowGlobalParent* aGlobal);
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WindowGlobalParent* GetEmbedderWindowGlobal() const {
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return mEmbedderWindowGlobal;
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}
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void SetEmbedderWindowGlobal(WindowGlobalParent* aGlobal);
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JSObject* WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) override;
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// This functions would set/reset its user gesture activation flag and then
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// notify other browsing contexts which are not the one related with the
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// current window global to set/reset the flag. (the corresponding browsing
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// context of the current global window has been set/reset before calling this
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// function)
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void NotifySetUserGestureActivationFromIPC(bool aIsUserGestureActivation);
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// This function is used to start the autoplay media which are delayed to
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// start. If needed, it would also notify the content browsing context which
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// are related with the canonical browsing content tree to start delayed
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// autoplay media.
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void NotifyStartDelayedAutoplayMedia();
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// This function is used to mute or unmute all media within a tab. It would
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// set the media mute property for the top level window and propagate it to
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// other top level windows in other processes.
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void NotifyMediaMutedChanged(bool aMuted);
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// Validate that the given process is allowed to perform the given
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// transaction. aSource is |nullptr| if set in the parent process.
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bool ValidateTransaction(const Transaction& aTransaction,
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ContentParent* aSource);
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void SetFieldEpochsForChild(ContentParent* aChild,
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const FieldEpochs& aEpochs);
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const FieldEpochs& GetFieldEpochsForChild(ContentParent* aChild);
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protected:
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void Traverse(nsCycleCollectionTraversalCallback& cb);
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void Unlink();
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using Type = BrowsingContext::Type;
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CanonicalBrowsingContext(BrowsingContext* aParent,
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BrowsingContextGroup* aGroup,
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uint64_t aBrowsingContextId, uint64_t aProcessId,
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Type aType);
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private:
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friend class BrowsingContext;
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// XXX(farre): Store a ContentParent pointer here rather than mProcessId?
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// Indicates which process owns the docshell.
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uint64_t mProcessId;
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// All live window globals within this browsing context.
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nsTHashtable<nsRefPtrHashKey<WindowGlobalParent>> mWindowGlobals;
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RefPtr<WindowGlobalParent> mCurrentWindowGlobal;
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RefPtr<WindowGlobalParent> mEmbedderWindowGlobal;
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// Generation information for each content process which has interacted with
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// this CanonicalBrowsingContext, by ChildID.
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nsDataHashtable<nsUint64HashKey, FieldEpochs> mChildFieldEpochs;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // !defined(mozilla_dom_CanonicalBrowsingContext_h)
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