tor-browser

The Tor Browser
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APZChild.h (2775B)

      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_layers_APZChild_h
      8 #define mozilla_layers_APZChild_h
      9 
     10 #include "mozilla/ipc/ProtocolUtils.h"
     11 #include "mozilla/layers/PAPZChild.h"
     12 #include "mozilla/layers/APZTaskRunnable.h"
     13 
     14 namespace mozilla {
     15 namespace layers {
     16 
     17 class GeckoContentController;
     18 
     19 /**
     20 * APZChild implements PAPZChild and is used to remote a GeckoContentController
     21 * that lives in a different process than where APZ lives.
     22 */
     23 class APZChild final : public PAPZChild {
     24 public:
     25  using APZStateChange = GeckoContentController_APZStateChange;
     26 
     27  explicit APZChild(RefPtr<GeckoContentController> aController);
     28  virtual ~APZChild();
     29 
     30  mozilla::ipc::IPCResult RecvLayerTransforms(
     31      nsTArray<MatrixMessage>&& aTransforms);
     32 
     33  mozilla::ipc::IPCResult RecvRequestContentRepaint(
     34      const RepaintRequest& aRequest);
     35 
     36  mozilla::ipc::IPCResult RecvUpdateOverscrollVelocity(
     37      const ScrollableLayerGuid& aGuid, const float& aX, const float& aY,
     38      const bool& aIsRootContent);
     39 
     40  mozilla::ipc::IPCResult RecvUpdateOverscrollOffset(
     41      const ScrollableLayerGuid& aGuid, const float& aX, const float& aY,
     42      const bool& aIsRootContent);
     43 
     44  mozilla::ipc::IPCResult RecvHideDynamicToolbar();
     45 
     46  mozilla::ipc::IPCResult RecvNotifyMozMouseScrollEvent(const ViewID& aScrollId,
     47                                                        const nsString& aEvent);
     48 
     49  mozilla::ipc::IPCResult RecvNotifyAPZStateChange(
     50      const ScrollableLayerGuid& aGuid, const APZStateChange& aChange,
     51      const int& aArg, Maybe<uint64_t> aInputBlockId);
     52 
     53  mozilla::ipc::IPCResult RecvNotifyFlushComplete();
     54 
     55  mozilla::ipc::IPCResult RecvNotifyAsyncScrollbarDragInitiated(
     56      const uint64_t& aDragBlockId, const ViewID& aScrollId,
     57      const ScrollDirection& aDirection);
     58  mozilla::ipc::IPCResult RecvNotifyAsyncScrollbarDragRejected(
     59      const ViewID& aScrollId);
     60 
     61  mozilla::ipc::IPCResult RecvNotifyAsyncAutoscrollRejected(
     62      const ViewID& aScrollId);
     63 
     64  mozilla::ipc::IPCResult RecvDestroy();
     65 
     66 private:
     67  void EnsureAPZTaskRunnable() {
     68    if (!mAPZTaskRunnable) {
     69      mAPZTaskRunnable = new APZTaskRunnable(mController);
     70    }
     71  }
     72 
     73  RefPtr<GeckoContentController> mController;
     74  // A runnable invoked in a nsRefreshDriver's tick to update multiple
     75  // RepaintRequests and notify a "apz-repaints-flushed" at the same time.
     76  RefPtr<APZTaskRunnable> mAPZTaskRunnable;
     77 };
     78 
     79 }  // namespace layers
     80 }  // namespace mozilla
     81 
     82 #endif  // mozilla_layers_APZChild_h