tor-browser

The Tor Browser
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APZChild.cpp (3919B)

      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 #include "mozilla/layers/APZChild.h"
      8 #include "mozilla/ipc/ProtocolUtils.h"
      9 #include "mozilla/layers/GeckoContentController.h"
     10 
     11 #include "mozilla/dom/BrowserChild.h"
     12 #include "mozilla/layers/APZCCallbackHelper.h"
     13 
     14 #include "InputData.h"  // for InputData
     15 
     16 namespace mozilla {
     17 namespace layers {
     18 
     19 APZChild::APZChild(RefPtr<GeckoContentController> aController)
     20    : mController(aController) {
     21  MOZ_ASSERT(mController);
     22 }
     23 
     24 APZChild::~APZChild() {
     25  if (mAPZTaskRunnable) {
     26    mAPZTaskRunnable->Revoke();
     27    mAPZTaskRunnable = nullptr;
     28  }
     29  if (mController) {
     30    mController->Destroy();
     31    mController = nullptr;
     32  }
     33 }
     34 
     35 mozilla::ipc::IPCResult APZChild::RecvLayerTransforms(
     36    nsTArray<MatrixMessage>&& aTransforms) {
     37  mController->NotifyLayerTransforms(std::move(aTransforms));
     38  return IPC_OK();
     39 }
     40 
     41 mozilla::ipc::IPCResult APZChild::RecvRequestContentRepaint(
     42    const RepaintRequest& aRequest) {
     43  MOZ_ASSERT(mController->IsRepaintThread());
     44 
     45  EnsureAPZTaskRunnable();
     46 
     47  mAPZTaskRunnable->QueueRequest(aRequest);
     48  return IPC_OK();
     49 }
     50 
     51 mozilla::ipc::IPCResult APZChild::RecvUpdateOverscrollVelocity(
     52    const ScrollableLayerGuid& aGuid, const float& aX, const float& aY,
     53    const bool& aIsRootContent) {
     54  mController->UpdateOverscrollVelocity(aGuid, aX, aY, aIsRootContent);
     55  return IPC_OK();
     56 }
     57 
     58 mozilla::ipc::IPCResult APZChild::RecvUpdateOverscrollOffset(
     59    const ScrollableLayerGuid& aGuid, const float& aX, const float& aY,
     60    const bool& aIsRootContent) {
     61  mController->UpdateOverscrollOffset(aGuid, aX, aY, aIsRootContent);
     62  return IPC_OK();
     63 }
     64 
     65 mozilla::ipc::IPCResult APZChild::RecvHideDynamicToolbar() {
     66  // Only the RemoteContentController implementation uses the
     67  // ScrollableLayerGuid parameter. APZChild::mController is never a
     68  // RemoteContentController, so it's fine to invent a value here.
     69  mController->HideDynamicToolbar(ScrollableLayerGuid{});
     70  return IPC_OK();
     71 }
     72 
     73 mozilla::ipc::IPCResult APZChild::RecvNotifyMozMouseScrollEvent(
     74    const ViewID& aScrollId, const nsString& aEvent) {
     75  mController->NotifyMozMouseScrollEvent(aScrollId, aEvent);
     76  return IPC_OK();
     77 }
     78 
     79 mozilla::ipc::IPCResult APZChild::RecvNotifyAPZStateChange(
     80    const ScrollableLayerGuid& aGuid, const APZStateChange& aChange,
     81    const int& aArg, Maybe<uint64_t> aInputBlockId) {
     82  MOZ_ASSERT(mController->IsRepaintThread());
     83  EnsureAPZTaskRunnable();
     84 
     85  mAPZTaskRunnable->QueueAPZStateChange(aGuid, aChange, aArg, aInputBlockId);
     86 
     87  return IPC_OK();
     88 }
     89 
     90 mozilla::ipc::IPCResult APZChild::RecvNotifyFlushComplete() {
     91  MOZ_ASSERT(mController->IsRepaintThread());
     92  EnsureAPZTaskRunnable();
     93 
     94  mAPZTaskRunnable->QueueFlushCompleteNotification();
     95 
     96  return IPC_OK();
     97 }
     98 
     99 mozilla::ipc::IPCResult APZChild::RecvNotifyAsyncScrollbarDragInitiated(
    100    const uint64_t& aDragBlockId, const ViewID& aScrollId,
    101    const ScrollDirection& aDirection) {
    102  mController->NotifyAsyncScrollbarDragInitiated(aDragBlockId, aScrollId,
    103                                                 aDirection);
    104  return IPC_OK();
    105 }
    106 
    107 mozilla::ipc::IPCResult APZChild::RecvNotifyAsyncScrollbarDragRejected(
    108    const ViewID& aScrollId) {
    109  mController->NotifyAsyncScrollbarDragRejected(aScrollId);
    110  return IPC_OK();
    111 }
    112 
    113 mozilla::ipc::IPCResult APZChild::RecvNotifyAsyncAutoscrollRejected(
    114    const ViewID& aScrollId) {
    115  mController->NotifyAsyncAutoscrollRejected(aScrollId);
    116  return IPC_OK();
    117 }
    118 
    119 mozilla::ipc::IPCResult APZChild::RecvDestroy() {
    120  // mController->Destroy will be called in the destructor
    121  PAPZChild::Send__delete__(this);
    122  return IPC_OK();
    123 }
    124 
    125 }  // namespace layers
    126 }  // namespace mozilla