1 files changed, 105 insertions, 0 deletions
diff --git a/gfx/ipc/CompositorSession.h b/gfx/ipc/CompositorSession.h
new file mode 100644
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+++ b/gfx/ipc/CompositorSession.h
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+/* -*- 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 _include_mozilla_gfx_ipc_CompositorSession_h_
+#define _include_mozilla_gfx_ipc_CompositorSession_h_
+
+#include "base/basictypes.h"
+#include "mozilla/layers/LayersTypes.h"
+#include "mozilla/layers/CompositorTypes.h"
+#include "nsISupportsImpl.h"
+#if defined(MOZ_WIDGET_ANDROID)
+#  include "mozilla/layers/UiCompositorControllerChild.h"
+#endif  // defined(MOZ_WIDGET_ANDROID)
+
+class nsBaseWidget;
+
+namespace mozilla {
+namespace widget {
+class CompositorWidget;
+class CompositorWidgetDelegate;
+}  // namespace widget
+namespace gfx {
+class GPUProcessHost;
+class GPUProcessManager;
+}  // namespace gfx
+namespace layers {
+
+class GeckoContentController;
+class IAPZCTreeManager;
+class CompositorBridgeParent;
+class CompositorBridgeChild;
+class ClientLayerManager;
+
+// A CompositorSession provides access to a compositor without exposing whether
+// or not it's in-process or out-of-process.
+class CompositorSession {
+  friend class gfx::GPUProcessManager;
+
+ protected:
+  typedef gfx::GPUProcessHost GPUProcessHost;
+  typedef widget::CompositorWidget CompositorWidget;
+  typedef widget::CompositorWidgetDelegate CompositorWidgetDelegate;
+
+ public:
+  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(CompositorSession)
+
+  virtual void Shutdown() = 0;
+
+  // This returns a CompositorBridgeParent if the compositor resides in the same
+  // process.
+  virtual CompositorBridgeParent* GetInProcessBridge() const = 0;
+
+  // Set the GeckoContentController for the root of the layer tree.
+  virtual void SetContentController(GeckoContentController* aController) = 0;
+
+  // Return the Async Pan/Zoom Tree Manager for this compositor.
+  virtual RefPtr<IAPZCTreeManager> GetAPZCTreeManager() const = 0;
+
+  // Return the child end of the compositor IPC bridge.
+  CompositorBridgeChild* GetCompositorBridgeChild();
+
+  // Return the proxy for accessing the compositor's widget.
+  CompositorWidgetDelegate* GetCompositorWidgetDelegate() {
+    return mCompositorWidgetDelegate;
+  }
+
+  // Return the id of the root layer tree.
+  LayersId RootLayerTreeId() const { return mRootLayerTreeId; }
+
+#if defined(MOZ_WIDGET_ANDROID)
+  // Set the UiCompositorControllerChild after Session creation so the Session
+  // constructor doesn't get mucked up for other platforms.
+  void SetUiCompositorControllerChild(
+      RefPtr<UiCompositorControllerChild> aUiController) {
+    mUiCompositorControllerChild = aUiController;
+  }
+
+  RefPtr<UiCompositorControllerChild> GetUiCompositorControllerChild() {
+    return mUiCompositorControllerChild;
+  }
+#endif  // defined(MOZ_WIDGET_ANDROID)
+ protected:
+  CompositorSession(nsBaseWidget* aWidget, CompositorWidgetDelegate* aDelegate,
+                    CompositorBridgeChild* aChild,
+                    const LayersId& aRootLayerTreeId);
+  virtual ~CompositorSession();
+
+ protected:
+  nsBaseWidget* mWidget;
+  CompositorWidgetDelegate* mCompositorWidgetDelegate;
+  RefPtr<CompositorBridgeChild> mCompositorBridgeChild;
+  LayersId mRootLayerTreeId;
+#if defined(MOZ_WIDGET_ANDROID)
+  RefPtr<UiCompositorControllerChild> mUiCompositorControllerChild;
+#endif  // defined(MOZ_WIDGET_ANDROID)
+ private:
+  DISALLOW_COPY_AND_ASSIGN(CompositorSession);
+};
+
+}  // namespace layers
+}  // namespace mozilla
+
+#endif  // _include_mozilla_gfx_ipc_CompositorSession_h_