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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 mozilla_layers_APZChild_h
#define mozilla_layers_APZChild_h
#include "mozilla/layers/PAPZChild.h"
#include "mozilla/layers/APZTaskRunnable.h"
namespace mozilla {
namespace layers {
class GeckoContentController;
/**
* APZChild implements PAPZChild and is used to remote a GeckoContentController
* that lives in a different process than where APZ lives.
*/
class APZChild final : public PAPZChild {
public:
using APZStateChange = GeckoContentController_APZStateChange;
explicit APZChild(RefPtr<GeckoContentController> aController);
virtual ~APZChild();
mozilla::ipc::IPCResult RecvLayerTransforms(
nsTArray<MatrixMessage>&& aTransforms);
mozilla::ipc::IPCResult RecvRequestContentRepaint(
const RepaintRequest& aRequest);
mozilla::ipc::IPCResult RecvUpdateOverscrollVelocity(
const ScrollableLayerGuid& aGuid, const float& aX, const float& aY,
const bool& aIsRootContent);
mozilla::ipc::IPCResult RecvUpdateOverscrollOffset(
const ScrollableLayerGuid& aGuid, const float& aX, const float& aY,
const bool& aIsRootContent);
mozilla::ipc::IPCResult RecvNotifyMozMouseScrollEvent(const ViewID& aScrollId,
const nsString& aEvent);
mozilla::ipc::IPCResult RecvNotifyAPZStateChange(
const ScrollableLayerGuid& aGuid, const APZStateChange& aChange,
const int& aArg, Maybe<uint64_t> aInputBlockId);
mozilla::ipc::IPCResult RecvNotifyFlushComplete();
mozilla::ipc::IPCResult RecvNotifyAsyncScrollbarDragInitiated(
const uint64_t& aDragBlockId, const ViewID& aScrollId,
const ScrollDirection& aDirection);
mozilla::ipc::IPCResult RecvNotifyAsyncScrollbarDragRejected(
const ViewID& aScrollId);
mozilla::ipc::IPCResult RecvNotifyAsyncAutoscrollRejected(
const ViewID& aScrollId);
mozilla::ipc::IPCResult RecvDestroy();
private:
void EnsureAPZTaskRunnable() {
if (!mAPZTaskRunnable) {
mAPZTaskRunnable = new APZTaskRunnable(mController);
}
}
RefPtr<GeckoContentController> mController;
// A runnable invoked in a nsRefreshDriver's tick to update multiple
// RepaintRequests and notify a "apz-repaints-flushed" at the same time.
RefPtr<APZTaskRunnable> mAPZTaskRunnable;
};
} // namespace layers
} // namespace mozilla
#endif // mozilla_layers_APZChild_h
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