Nika Layzell
cb527df820
Looking at the existing callers, it seems like basically all of them actually wanted `CanSend()`, and didn't want this function. This method is misleading, as it is just a value which returns `true` until `ActorDestroy()` has been called. Differential Revision: https://phabricator.services.mozilla.com/D294218
107 lines
3.1 KiB
C++
107 lines
3.1 KiB
C++
/* 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_BrowserHost_h
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#define mozilla_dom_BrowserHost_h
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#include "mozilla/dom/BrowserParent.h"
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#include "mozilla/dom/RemoteBrowser.h"
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#include "nsIRemoteTab.h"
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class nsPIDOMWindowOuter;
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namespace mozilla {
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namespace a11y {
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class DocAccessibleParent;
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} // namespace a11y
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namespace dom {
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class Element;
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/**
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* BrowserHost manages a remote browser from the chrome process.
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*
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* It is used via the RemoteBrowser interface in nsFrameLoader and supports
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* operations over the tree of BrowserParent/BrowserBridgeParent's.
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*
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* See `dom/docs/Fission-IPC-Diagram.svg` for an overview of the DOM IPC
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* actors.
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*/
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class BrowserHost : public RemoteBrowser,
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public nsIRemoteTab,
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public nsSupportsWeakReference {
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public:
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typedef mozilla::layers::LayersId LayersId;
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explicit BrowserHost(BrowserParent* aParent);
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static BrowserHost* GetFrom(nsIRemoteTab* aRemoteTab);
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// NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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// nsIRemoteTab
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NS_DECL_NSIREMOTETAB
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NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(BrowserHost, RemoteBrowser)
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// Get the IPDL actor for the root BrowserParent. This method should be
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// avoided and consumers migrated to use this class.
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BrowserParent* GetActor() { return mRoot; }
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ContentParent* GetContentParent() const {
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return mRoot ? mRoot->Manager() : nullptr;
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}
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BrowserHost* AsBrowserHost() override { return this; }
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BrowserBridgeHost* AsBrowserBridgeHost() override { return nullptr; }
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TabId GetTabId() const override;
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LayersId GetLayersId() const override;
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BrowsingContext* GetBrowsingContext() const override;
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bool CanSend() const override;
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Element* GetOwnerElement() const { return mRoot->GetOwnerElement(); }
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already_AddRefed<nsPIDOMWindowOuter> GetParentWindowOuter() const {
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return mRoot->GetParentWindowOuter();
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}
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a11y::DocAccessibleParent* GetTopLevelDocAccessible() const;
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// Visit each BrowserParent in the tree formed by PBrowser and
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// PBrowserBridge that is anchored by `mRoot`.
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template <typename Callback>
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void VisitAll(Callback aCallback) {
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if (!mRoot) {
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return;
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}
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mRoot->VisitAll(aCallback);
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}
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void LoadURL(nsDocShellLoadState* aLoadState) override;
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void ResumeLoad(uint64_t aPendingSwitchId) override;
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void DestroyStart() override;
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void DestroyComplete() override;
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bool Show(const OwnerShowInfo&) override;
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void UpdateDimensions(const LayoutDeviceIntRect& aRect,
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const LayoutDeviceIntSize& aSize) override;
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void UpdateEffects(EffectsInfo aInfo) override;
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private:
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virtual ~BrowserHost() = default;
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// The TabID for the root BrowserParent, we cache this so that we can access
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// it after the remote browser has been destroyed
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TabId mId;
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// The root BrowserParent of this remote browser
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RefPtr<BrowserParent> mRoot;
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EffectsInfo mEffectsInfo;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_BrowserHost_h
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