gecko-dev/widget/android/AndroidContentController.cpp

69 строки
2.5 KiB
C++

/* -*- Mode: c++; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
* 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 "AndroidContentController.h"
#include "AndroidBridge.h"
#include "base/message_loop.h"
#include "mozilla/layers/APZCCallbackHelper.h"
#include "mozilla/layers/IAPZCTreeManager.h"
#include "nsIObserverService.h"
#include "nsLayoutUtils.h"
#include "nsWindow.h"
using mozilla::layers::IAPZCTreeManager;
namespace mozilla {
namespace widget {
void
AndroidContentController::Destroy()
{
mAndroidWindow = nullptr;
ChromeProcessController::Destroy();
}
void
AndroidContentController::UpdateOverscrollVelocity(const float aX, const float aY, const bool aIsRootContent)
{
if (aIsRootContent && mAndroidWindow) {
mAndroidWindow->UpdateOverscrollVelocity(aX, aY);
}
}
void
AndroidContentController::UpdateOverscrollOffset(const float aX, const float aY, const bool aIsRootContent)
{
if (aIsRootContent && mAndroidWindow) {
mAndroidWindow->UpdateOverscrollOffset(aX, aY);
}
}
void
AndroidContentController::NotifyAPZStateChange(const ScrollableLayerGuid& aGuid,
APZStateChange aChange,
int aArg)
{
// This function may get invoked twice, if the first invocation is not on
// the main thread then the ChromeProcessController version of this function
// will redispatch to the main thread. We want to make sure that our handling
// only happens on the main thread.
ChromeProcessController::NotifyAPZStateChange(aGuid, aChange, aArg);
if (NS_IsMainThread()) {
nsCOMPtr<nsIObserverService> observerService = mozilla::services::GetObserverService();
if (aChange == layers::GeckoContentController::APZStateChange::eTransformEnd) {
// This is used by tests to determine when the APZ is done doing whatever
// it's doing. XXX generify this as needed when writing additional tests.
observerService->NotifyObservers(nullptr, "APZ:TransformEnd", nullptr);
observerService->NotifyObservers(nullptr, "PanZoom:StateChange", u"NOTHING");
} else if (aChange == layers::GeckoContentController::APZStateChange::eTransformBegin) {
observerService->NotifyObservers(nullptr, "PanZoom:StateChange", u"PANNING");
}
}
}
} // namespace widget
} // namespace mozilla