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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/. */
#include "mozilla/layers/APZCTreeManagerChild.h"
#include "InputData.h" // for InputData
#include "mozilla/dom/BrowserParent.h" // for BrowserParent
#include "mozilla/layers/APZCCallbackHelper.h" // for APZCCallbackHelper
#include "mozilla/layers/APZInputBridgeChild.h" // for APZInputBridgeChild
#include "mozilla/layers/GeckoContentController.h" // for GeckoContentController
#include "mozilla/layers/DoubleTapToZoom.h" // for DoubleTapToZoomMetrics
#include "mozilla/layers/RemoteCompositorSession.h" // for RemoteCompositorSession
#ifdef MOZ_WIDGET_ANDROID
# include "mozilla/jni/Utils.h" // for DispatchToGeckoPriorityQueue
#endif
namespace mozilla {
namespace layers {
APZCTreeManagerChild::APZCTreeManagerChild()
: mCompositorSession(nullptr), mIPCOpen(false) {}
APZCTreeManagerChild::~APZCTreeManagerChild() = default;
void APZCTreeManagerChild::SetCompositorSession(
RemoteCompositorSession* aSession) {
// Exactly one of mCompositorSession and aSession must be null (i.e. either
// we're setting mCompositorSession or we're clearing it).
MOZ_ASSERT(!mCompositorSession ^ !aSession);
mCompositorSession = aSession;
}
void APZCTreeManagerChild::SetInputBridge(APZInputBridgeChild* aInputBridge) {
// The input bridge only exists from the UI process to the GPU process.
MOZ_ASSERT(XRE_IsParentProcess());
MOZ_ASSERT(!mInputBridge);
mInputBridge = aInputBridge;
}
void APZCTreeManagerChild::Destroy() {
MOZ_ASSERT(NS_IsMainThread());
if (mInputBridge) {
mInputBridge->Destroy();
mInputBridge = nullptr;
}
}
void APZCTreeManagerChild::SetKeyboardMap(const KeyboardMap& aKeyboardMap) {
MOZ_ASSERT(NS_IsMainThread());
SendSetKeyboardMap(aKeyboardMap);
}
void APZCTreeManagerChild::ZoomToRect(const ScrollableLayerGuid& aGuid,
const ZoomTarget& aZoomTarget,
const uint32_t aFlags) {
MOZ_ASSERT(NS_IsMainThread());
SendZoomToRect(aGuid, aZoomTarget, aFlags);
}
void APZCTreeManagerChild::ContentReceivedInputBlock(uint64_t aInputBlockId,
bool aPreventDefault) {
MOZ_ASSERT(NS_IsMainThread());
SendContentReceivedInputBlock(aInputBlockId, aPreventDefault);
}
void APZCTreeManagerChild::SetTargetAPZC(
uint64_t aInputBlockId, const nsTArray<ScrollableLayerGuid>& aTargets) {
MOZ_ASSERT(NS_IsMainThread());
SendSetTargetAPZC(aInputBlockId, aTargets);
}
void APZCTreeManagerChild::UpdateZoomConstraints(
const ScrollableLayerGuid& aGuid,
const Maybe<ZoomConstraints>& aConstraints) {
MOZ_ASSERT(NS_IsMainThread());
if (mIPCOpen) {
SendUpdateZoomConstraints(aGuid, aConstraints);
}
}
void APZCTreeManagerChild::SetDPI(float aDpiValue) {
MOZ_ASSERT(NS_IsMainThread());
SendSetDPI(aDpiValue);
}
void APZCTreeManagerChild::SetAllowedTouchBehavior(
uint64_t aInputBlockId, const nsTArray<TouchBehaviorFlags>& aValues) {
MOZ_ASSERT(NS_IsMainThread());
SendSetAllowedTouchBehavior(aInputBlockId, aValues);
}
void APZCTreeManagerChild::SetBrowserGestureResponse(
uint64_t aInputBlockId, BrowserGestureResponse aResponse) {
MOZ_ASSERT(NS_IsMainThread());
SendSetBrowserGestureResponse(aInputBlockId, aResponse);
}
void APZCTreeManagerChild::StartScrollbarDrag(
const ScrollableLayerGuid& aGuid, const AsyncDragMetrics& aDragMetrics) {
MOZ_ASSERT(NS_IsMainThread());
SendStartScrollbarDrag(aGuid, aDragMetrics);
}
bool APZCTreeManagerChild::StartAutoscroll(const ScrollableLayerGuid& aGuid,
const ScreenPoint& aAnchorLocation) {
MOZ_ASSERT(NS_IsMainThread());
return SendStartAutoscroll(aGuid, aAnchorLocation);
}
void APZCTreeManagerChild::StopAutoscroll(const ScrollableLayerGuid& aGuid) {
MOZ_ASSERT(NS_IsMainThread());
SendStopAutoscroll(aGuid);
}
void APZCTreeManagerChild::SetLongTapEnabled(bool aTapGestureEnabled) {
MOZ_ASSERT(NS_IsMainThread());
SendSetLongTapEnabled(aTapGestureEnabled);
}
APZInputBridge* APZCTreeManagerChild::InputBridge() {
MOZ_ASSERT(XRE_IsParentProcess());
MOZ_ASSERT(mInputBridge);
return mInputBridge.get();
}
void APZCTreeManagerChild::AddIPDLReference() {
MOZ_ASSERT(mIPCOpen == false);
mIPCOpen = true;
AddRef();
}
void APZCTreeManagerChild::ReleaseIPDLReference() {
mIPCOpen = false;
Release();
}
void APZCTreeManagerChild::ActorDestroy(ActorDestroyReason aWhy) {
mIPCOpen = false;
}
mozilla::ipc::IPCResult APZCTreeManagerChild::RecvHandleTap(
const TapType& aType, const LayoutDevicePoint& aPoint,
const Modifiers& aModifiers, const ScrollableLayerGuid& aGuid,
const uint64_t& aInputBlockId,
const Maybe<DoubleTapToZoomMetrics>& aDoubleTapToZoomMetrics) {
MOZ_ASSERT(XRE_IsParentProcess());
if (mCompositorSession &&
mCompositorSession->RootLayerTreeId() == aGuid.mLayersId &&
mCompositorSession->GetContentController()) {
RefPtr<GeckoContentController> controller =
mCompositorSession->GetContentController();
controller->HandleTap(aType, aPoint, aModifiers, aGuid, aInputBlockId,
aDoubleTapToZoomMetrics);
return IPC_OK();
}
dom::BrowserParent* tab =
dom::BrowserParent::GetBrowserParentFromLayersId(aGuid.mLayersId);
if (tab) {
#ifdef MOZ_WIDGET_ANDROID
// On Android, touch events are dispatched from the UI thread to the main
// thread using the Android priority queue. It is possible that this tap has
// made it to the GPU process and back before they have been processed. We
// must therefore dispatch this message to the same queue, otherwise the tab
// may receive the tap event before the touch events that synthesized it.
mozilla::jni::DispatchToGeckoPriorityQueue(
NewRunnableMethod<TapType, LayoutDevicePoint, Modifiers,
ScrollableLayerGuid, uint64_t,
Maybe<DoubleTapToZoomMetrics>>(
"dom::BrowserParent::SendHandleTap", tab,
&dom::BrowserParent::SendHandleTap, aType, aPoint, aModifiers,
aGuid, aInputBlockId, aDoubleTapToZoomMetrics));
#else
tab->SendHandleTap(aType, aPoint, aModifiers, aGuid, aInputBlockId,
aDoubleTapToZoomMetrics);
#endif
}
return IPC_OK();
}
mozilla::ipc::IPCResult APZCTreeManagerChild::RecvNotifyPinchGesture(
const PinchGestureType& aType, const ScrollableLayerGuid& aGuid,
const LayoutDevicePoint& aFocusPoint, const LayoutDeviceCoord& aSpanChange,
const Modifiers& aModifiers) {
// This will only get sent from the GPU process to the parent process, so
// this function should never get called in the content process.
MOZ_ASSERT(XRE_IsParentProcess());
MOZ_ASSERT(NS_IsMainThread());
// We want to handle it in this process regardless of what the target guid
// of the pinch is. This may change in the future.
if (mCompositorSession && mCompositorSession->GetWidget()) {
APZCCallbackHelper::NotifyPinchGesture(aType, aFocusPoint, aSpanChange,
aModifiers,
mCompositorSession->GetWidget());
}
return IPC_OK();
}
mozilla::ipc::IPCResult APZCTreeManagerChild::RecvCancelAutoscroll(
const ScrollableLayerGuid::ViewID& aScrollId) {
// This will only get sent from the GPU process to the parent process, so
// this function should never get called in the content process.
MOZ_ASSERT(XRE_IsParentProcess());
MOZ_ASSERT(NS_IsMainThread());
APZCCallbackHelper::CancelAutoscroll(aScrollId);
return IPC_OK();
}
mozilla::ipc::IPCResult APZCTreeManagerChild::RecvNotifyScaleGestureComplete(
const ScrollableLayerGuid::ViewID& aScrollId, float aScale) {
// This will only get sent from the GPU process to the parent process, so
// this function should never get called in the content process.
MOZ_ASSERT(XRE_IsParentProcess());
MOZ_ASSERT(NS_IsMainThread());
if (mCompositorSession && mCompositorSession->GetWidget()) {
APZCCallbackHelper::NotifyScaleGestureComplete(
mCompositorSession->GetWidget(), aScale);
}
return IPC_OK();
}
} // namespace layers
} // namespace mozilla
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