1 files changed, 119 insertions, 0 deletions
diff --git a/dom/ipc/BrowserBridgeChild.h b/dom/ipc/BrowserBridgeChild.h
new file mode 100644
index 0000000000..60e29d2483
--- /dev/null
+++ b/dom/ipc/BrowserBridgeChild.h
@@ -0,0 +1,119 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_dom_BrowserBridgeChild_h
+#define mozilla_dom_BrowserBridgeChild_h
+
+#include "mozilla/dom/PBrowserBridgeChild.h"
+#include "mozilla/dom/BrowserChild.h"
+#include "mozilla/dom/ipc/IdType.h"
+
+namespace mozilla::dom {
+class BrowsingContext;
+class ContentChild;
+class BrowserBridgeHost;
+
+/**
+ * BrowserBridgeChild implements the child actor part of the PBrowserBridge
+ * protocol. See PBrowserBridge for more information.
+ */
+class BrowserBridgeChild : public PBrowserBridgeChild {
+ public:
+  typedef mozilla::layers::LayersId LayersId;
+
+  NS_INLINE_DECL_REFCOUNTING(BrowserBridgeChild, final);
+
+  BrowserChild* Manager() {
+    MOZ_ASSERT(CanSend());
+    return static_cast<BrowserChild*>(PBrowserBridgeChild::Manager());
+  }
+
+  TabId GetTabId() { return mId; }
+
+  LayersId GetLayersId() { return mLayersId; }
+
+  nsFrameLoader* GetFrameLoader() const { return mFrameLoader; }
+
+  BrowsingContext* GetBrowsingContext() { return mBrowsingContext; }
+
+  nsILoadContext* GetLoadContext();
+
+  void NavigateByKey(bool aForward, bool aForDocumentNavigation);
+
+  void Activate(uint64_t aActionId);
+
+  void Deactivate(bool aWindowLowering, uint64_t aActionId);
+
+  already_AddRefed<BrowserBridgeHost> FinishInit(nsFrameLoader* aFrameLoader);
+
+#if defined(ACCESSIBILITY)
+  void SetEmbedderAccessible(PDocAccessibleChild* aDoc, uint64_t aID) {
+    MOZ_ASSERT((aDoc && aID) || (!aDoc && !aID));
+    mEmbedderAccessibleID = aID;
+    Unused << SendSetEmbedderAccessible(aDoc, aID);
+  }
+
+  uint64_t GetEmbedderAccessibleID() { return mEmbedderAccessibleID; }
+#endif  // defined(ACCESSIBILITY)
+
+  static BrowserBridgeChild* GetFrom(nsFrameLoader* aFrameLoader);
+
+  static BrowserBridgeChild* GetFrom(nsIContent* aContent);
+
+  BrowserBridgeChild(BrowsingContext* aBrowsingContext, TabId aId,
+                     const LayersId& aLayersId);
+
+ protected:
+  friend class ContentChild;
+  friend class PBrowserBridgeChild;
+
+  mozilla::ipc::IPCResult RecvRequestFocus(const bool& aCanRaise,
+                                           const CallerType aCallerType);
+
+  mozilla::ipc::IPCResult RecvMoveFocus(const bool& aForward,
+                                        const bool& aForDocumentNavigation);
+
+  // TODO: Use MOZ_CAN_RUN_SCRIPT when it gains IPDL support (bug 1539864)
+  MOZ_CAN_RUN_SCRIPT_BOUNDARY mozilla::ipc::IPCResult
+  RecvMaybeFireEmbedderLoadEvents(
+      EmbedderElementEventType aFireEventAtEmbeddingElement);
+
+  mozilla::ipc::IPCResult RecvIntrinsicSizeOrRatioChanged(
+      const Maybe<IntrinsicSize>& aIntrinsicSize,
+      const Maybe<AspectRatio>& aIntrinsicRatio);
+
+  mozilla::ipc::IPCResult RecvImageLoadComplete(const nsresult& aResult);
+
+  MOZ_CAN_RUN_SCRIPT_BOUNDARY
+  mozilla::ipc::IPCResult RecvScrollRectIntoView(
+      const nsRect& aRect, const ScrollAxis& aVertical,
+      const ScrollAxis& aHorizontal, const ScrollFlags& aScrollFlags,
+      const int32_t& aAppUnitsPerDevPixel);
+
+  mozilla::ipc::IPCResult RecvSubFrameCrashed();
+
+  void ActorDestroy(ActorDestroyReason aWhy) override;
+
+ private:
+  ~BrowserBridgeChild();
+
+  void UnblockOwnerDocsLoadEvent();
+
+  TabId mId;
+  LayersId mLayersId;
+  bool mHadInitialLoad = false;
+  RefPtr<nsFrameLoader> mFrameLoader;
+  RefPtr<BrowsingContext> mBrowsingContext;
+#if defined(ACCESSIBILITY)
+  // We need to keep track of the embedder accessible id we last sent to the
+  // parent process.
+  uint64_t mEmbedderAccessibleID = 0;
+#endif  // defined(ACCESSIBILITY)
+};
+
+}  // namespace mozilla::dom
+
+#endif  // !defined(mozilla_dom_BrowserBridgeParent_h)