dom/ipc/BrowserBridgeHost.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_dom_BrowserBridgeHost_h
   8 #define mozilla_dom_BrowserBridgeHost_h
   9
  10 #include "mozilla/dom/RemoteBrowser.h"
  11 #include "mozilla/dom/BrowserBridgeChild.h"
  12
  13 namespace mozilla::dom {
  14
  15 /**
  16  * BrowserBridgeHost manages a remote browser from a content process.
  17  *
  18  * It is used via the RemoteBrowser interface in nsFrameLoader and proxies
  19  * work to the chrome process via PBrowserBridge.
  20  *
  21  * See `dom/docs/Fission-IPC-Diagram.svg` for an overview of the DOM IPC
  22  * actors.
  23  */
  24 class BrowserBridgeHost : public RemoteBrowser {
  25  public:
  26   typedef mozilla::layers::LayersId LayersId;
  27
  28   explicit BrowserBridgeHost(BrowserBridgeChild* aChild);
  29
  30   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
  31   NS_DECL_CYCLE_COLLECTION_CLASS(BrowserBridgeHost)
  32
  33   // Get the IPDL actor for the BrowserBridgeChild.
  34   BrowserBridgeChild* GetActor() { return mBridge; }
  35
  36   BrowserHost* AsBrowserHost() override { return nullptr; }
  37   BrowserBridgeHost* AsBrowserBridgeHost() override { return this; }
  38
  39   TabId GetTabId() const override;
  40   LayersId GetLayersId() const override;
  41   BrowsingContext* GetBrowsingContext() const override;
  42   nsILoadContext* GetLoadContext() const override;
  43   bool CanRecv() const override;
  44
  45   void LoadURL(nsDocShellLoadState* aLoadState) override;
  46   void ResumeLoad(uint64_t aPendingSwitchId) override;
  47   void DestroyStart() override;
  48   void DestroyComplete() override;
  49
  50   bool Show(const OwnerShowInfo&) override;
  51   void UpdateDimensions(const nsIntRect& aRect,
  52                         const ScreenIntSize& aSize) override;
  53
  54   void UpdateEffects(EffectsInfo aInfo) override;
  55
  56  private:
  57   virtual ~BrowserBridgeHost() = default;
  58
  59   already_AddRefed<nsIWidget> GetWidget() const;
  60
  61   // The IPDL actor for proxying browser operations
  62   RefPtr<BrowserBridgeChild> mBridge;
  63   EffectsInfo mEffectsInfo;
  64 };
  65
  66 }  // namespace mozilla::dom
  67
  68 #endif  // mozilla_dom_BrowserBridgeHost_h