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gecko-dev/widget/android/nsWindow.cpp
Randall Barker 0cc6f26617 Bug 1392705 - part 3: Call nsBaseWidget::DestroyLayerManager() in nsWindow::Destroy to ensure IPC is not shutdown in the destructor for Android r=jchen 
Due to the indeterminate nature of Gecko shutdown, the ref count of the
nsWindow on Android would sometimes go to zero before the XPCOM shutdown
observer was called in nsBaseWindow which is where the compositor thread
IPC is shutdown. If nsBaseWindow::Shutdown does not get called, then the
compositor thread IPC is shutdown in the nsBaseWindow destructor.
Unfortunately while the nsWindow is being deleted, it can be accessed in
the compositor thread and cause a crash in
LayerManagerComposite::RenderToPresentationSurface.
Calling nsBaseWidget::DestroyLayerManager() in nsWindow::Destroy()
ensures it gets called before the destructor gets invoked typically in
the Destroy() call.

MozReview-Commit-ID: KCv8SCmEjnb

--HG--
extra : rebase_source : f48fe01b15ff7e2e8763628dd22a2c926d051e9d
2017-09-05 13:00:06 -07:00

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/* -*- Mode: c++; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: nil; -*-
* vim: set sw=4 ts=4 expandtab:
* 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 <android/log.h>
#include <android/native_window.h>
#include <android/native_window_jni.h>
#include <math.h>
#include <unistd.h>
#include "mozilla/MiscEvents.h"
#include "mozilla/MouseEvents.h"
#include "mozilla/TouchEvents.h"
#include "mozilla/TypeTraits.h"
#include "mozilla/WeakPtr.h"
#include "mozilla/dom/ContentParent.h"
#include "mozilla/dom/ContentChild.h"
#include "mozilla/Unused.h"
#include "mozilla/Preferences.h"
#include "mozilla/layers/RenderTrace.h"
#include <algorithm>
using mozilla::dom::ContentParent;
using mozilla::dom::ContentChild;
using mozilla::Unused;
#include "nsWindow.h"
#include "nsIBaseWindow.h"
#include "nsIBrowserDOMWindow.h"
#include "nsIDOMChromeWindow.h"
#include "nsIObserverService.h"
#include "nsISupportsPrimitives.h"
#include "nsIWidgetListener.h"
#include "nsIWindowWatcher.h"
#include "nsIXULWindow.h"
#include "nsAppShell.h"
#include "nsFocusManager.h"
#include "nsIdleService.h"
#include "nsLayoutUtils.h"
#include "nsViewManager.h"
#include "nsContentUtils.h"
#include "WidgetUtils.h"
#include "nsIDOMSimpleGestureEvent.h"
#include "nsGkAtoms.h"
#include "nsWidgetsCID.h"
#include "nsGfxCIID.h"
#include "gfxContext.h"
#include "Layers.h"
#include "mozilla/layers/LayerManagerComposite.h"
#include "mozilla/layers/AsyncCompositionManager.h"
#include "mozilla/layers/APZEventState.h"
#include "mozilla/layers/APZThreadUtils.h"
#include "mozilla/layers/IAPZCTreeManager.h"
#include "GLContext.h"
#include "GLContextProvider.h"
#include "ScopedGLHelpers.h"
#include "mozilla/layers/CompositorOGL.h"
#include "AndroidContentController.h"
#include "nsTArray.h"
#include "AndroidBridge.h"
#include "AndroidBridgeUtilities.h"
#include "AndroidUiThread.h"
#include "FennecJNINatives.h"
#include "GeneratedJNINatives.h"
#include "GeckoEditableSupport.h"
#include "KeyEvent.h"
#include "MotionEvent.h"
#include "imgIEncoder.h"
#include "nsString.h"
#include "GeckoProfiler.h" // For AUTO_PROFILER_LABEL
#include "nsIXULRuntime.h"
#include "nsPrintfCString.h"
#include "mozilla/ipc/Shmem.h"
using namespace mozilla;
using namespace mozilla::dom;
using namespace mozilla::layers;
using namespace mozilla::java;
using namespace mozilla::widget;
using namespace mozilla::ipc;
NS_IMPL_ISUPPORTS_INHERITED0(nsWindow, nsBaseWidget)
#include "mozilla/layers/CompositorBridgeChild.h"
#include "mozilla/layers/CompositorSession.h"
#include "mozilla/layers/LayerTransactionParent.h"
#include "mozilla/layers/UiCompositorControllerChild.h"
#include "mozilla/Services.h"
#include "nsThreadUtils.h"
// All the toplevel windows that have been created; these are in
// stacking order, so the window at gTopLevelWindows[0] is the topmost
// one.
static nsTArray<nsWindow*> gTopLevelWindows;
static bool sFailedToCreateGLContext = false;
// Multitouch swipe thresholds in inches
static const double SWIPE_MAX_PINCH_DELTA_INCHES = 0.4;
static const double SWIPE_MIN_DISTANCE_INCHES = 0.6;
template<typename Lambda, bool IsStatic, typename InstanceType, class Impl>
class nsWindow::WindowEvent : public Runnable
{
bool IsStaleCall()
{
if (IsStatic) {
// Static calls are never stale.
return false;
}
JNIEnv* const env = mozilla::jni::GetEnvForThread();
const auto natives = reinterpret_cast<mozilla::WeakPtr<Impl>*>(
jni::GetNativeHandle(env, mInstance.Get()));
MOZ_CATCH_JNI_EXCEPTION(env);
// The call is stale if the nsWindow has been destroyed on the
// Gecko side, but the Java object is still attached to it through
// a weak pointer. Stale calls should be discarded. Note that it's
// an error if natives is nullptr here; we return false but the
// native call will throw an error.
return natives && !natives->get();
}
Lambda mLambda;
const InstanceType mInstance;
public:
WindowEvent(Lambda&& aLambda,
InstanceType&& aInstance)
: Runnable("nsWindowEvent")
, mLambda(mozilla::Move(aLambda))
, mInstance(Forward<InstanceType>(aInstance))
{}
WindowEvent(Lambda&& aLambda)
: Runnable("nsWindowEvent")
, mLambda(mozilla::Move(aLambda))
, mInstance(mLambda.GetThisArg())
{}
NS_IMETHOD Run() override
{
if (!IsStaleCall()) {
mLambda();
}
return NS_OK;
}
};
namespace {
template<class Instance, class Impl> typename EnableIf<
jni::detail::NativePtrPicker<Impl>::value ==
jni::detail::REFPTR, void>::Type
CallAttachNative(Instance aInstance, Impl* aImpl)
{
Impl::AttachNative(aInstance, RefPtr<Impl>(aImpl).get());
}
template<class Instance, class Impl> typename EnableIf<
jni::detail::NativePtrPicker<Impl>::value ==
jni::detail::OWNING, void>::Type
CallAttachNative(Instance aInstance, Impl* aImpl)
{
Impl::AttachNative(aInstance, UniquePtr<Impl>(aImpl));
}
} // namespace
template<class Impl>
template<class Instance, typename... Args> void
nsWindow::NativePtr<Impl>::Attach(Instance aInstance, nsWindow* aWindow,
Args&&... aArgs)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!mPtr && !mImpl);
Impl* const impl = new Impl(
this, aWindow, mozilla::Forward<Args>(aArgs)...);
mImpl = impl;
// CallAttachNative transfers ownership of impl.
CallAttachNative<Instance, Impl>(aInstance, impl);
}
template<class Impl> void
nsWindow::NativePtr<Impl>::Detach()
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(mPtr && mImpl);
mImpl->OnDetach();
{
Locked implLock(*this);
mImpl = nullptr;
}
typename WindowPtr<Impl>::Locked lock(*mPtr);
mPtr->mWindow = nullptr;
mPtr->mPtr = nullptr;
mPtr = nullptr;
}
template<class Impl>
class nsWindow::NativePtr<Impl>::Locked final : private MutexAutoLock
{
Impl* const mImpl;
public:
Locked(NativePtr<Impl>& aPtr)
: MutexAutoLock(aPtr.mImplLock)
, mImpl(aPtr.mImpl)
{}
operator Impl*() const { return mImpl; }
Impl* operator->() const { return mImpl; }
};
class nsWindow::GeckoViewSupport final
: public GeckoView::Window::Natives<GeckoViewSupport>
, public SupportsWeakPtr<GeckoViewSupport>
{
nsWindow& window;
GeckoView::Window::GlobalRef mGeckoViewWindow;
public:
typedef GeckoView::Window::Natives<GeckoViewSupport> Base;
typedef SupportsWeakPtr<GeckoViewSupport> SupportsWeakPtr;
MOZ_DECLARE_WEAKREFERENCE_TYPENAME(GeckoViewSupport);
template<typename Functor>
static void OnNativeCall(Functor&& aCall)
{
if (aCall.IsTarget(&Open) && NS_IsMainThread()) {
// Gecko state probably just switched to PROFILE_READY, and the
// event loop is not running yet. Skip the event loop here so we
// can get a head start on opening our window.
return aCall();
}
NS_DispatchToMainThread(new WindowEvent<Functor>(mozilla::Move(aCall)));
}
GeckoViewSupport(nsWindow* aWindow,
const GeckoView::Window::LocalRef& aInstance)
: window(*aWindow)
, mGeckoViewWindow(aInstance)
{
Base::AttachNative(aInstance, static_cast<SupportsWeakPtr*>(this));
}
~GeckoViewSupport();
using Base::DisposeNative;
/**
* GeckoView methods
*/
private:
nsCOMPtr<nsPIDOMWindowOuter> mDOMWindow;
public:
// Create and attach a window.
static void Open(const jni::Class::LocalRef& aCls,
GeckoView::Window::Param aWindow,
GeckoView::Param aView, jni::Object::Param aCompositor,
jni::Object::Param aDispatcher,
jni::String::Param aChromeURI,
jni::Object::Param aSettings,
int32_t aScreenId,
bool aPrivateMode);
// Close and destroy the nsWindow.
void Close();
// Reattach this nsWindow to a new GeckoView.
void Reattach(const GeckoView::Window::LocalRef& inst,
GeckoView::Param aView, jni::Object::Param aCompositor,
jni::Object::Param aDispatcher);
void LoadUri(jni::String::Param aUri, int32_t aFlags);
void EnableEventDispatcher();
};
/**
* NativePanZoomController handles its native calls on the UI thread, so make
* it separate from GeckoViewSupport.
*/
class nsWindow::NPZCSupport final
: public NativePanZoomController::Natives<NPZCSupport>
{
using LockedWindowPtr = WindowPtr<NPZCSupport>::Locked;
WindowPtr<NPZCSupport> mWindow;
NativePanZoomController::GlobalRef mNPZC;
int mPreviousButtons;
template<typename Lambda>
class InputEvent final : public nsAppShell::Event
{
NativePanZoomController::GlobalRef mNPZC;
Lambda mLambda;
public:
InputEvent(const NPZCSupport* aNPZCSupport, Lambda&& aLambda)
: mNPZC(aNPZCSupport->mNPZC)
, mLambda(mozilla::Move(aLambda))
{}
void Run() override
{
MOZ_ASSERT(NS_IsMainThread());
JNIEnv* const env = jni::GetGeckoThreadEnv();
NPZCSupport* npzcSupport = GetNative(
NativePanZoomController::LocalRef(env, mNPZC));
if (!npzcSupport || !npzcSupport->mWindow) {
// We already shut down.
env->ExceptionClear();
return;
}
nsWindow* const window = npzcSupport->mWindow;
window->UserActivity();
return mLambda(window);
}
nsAppShell::Event::Type ActivityType() const override
{
return nsAppShell::Event::Type::kUIActivity;
}
};
template<typename Lambda>
void PostInputEvent(Lambda&& aLambda)
{
// Use priority queue for input events.
nsAppShell::PostEvent(MakeUnique<InputEvent<Lambda>>(
this, mozilla::Move(aLambda)));
}
public:
typedef NativePanZoomController::Natives<NPZCSupport> Base;
NPZCSupport(NativePtr<NPZCSupport>* aPtr, nsWindow* aWindow,
const NativePanZoomController::LocalRef& aNPZC)
: mWindow(aPtr, aWindow)
, mNPZC(aNPZC)
, mPreviousButtons(0)
{
MOZ_ASSERT(mWindow);
}
~NPZCSupport()
{}
using Base::AttachNative;
using Base::DisposeNative;
void OnDetach()
{
// There are several considerations when shutting down NPZC. 1) The
// Gecko thread may destroy NPZC at any time when nsWindow closes. 2)
// There may be pending events on the Gecko thread when NPZC is
// destroyed. 3) mWindow may not be available when the pending event
// runs. 4) The UI thread may destroy NPZC at any time when GeckoView
// is destroyed. 5) The UI thread may destroy NPZC at the same time as
// Gecko thread trying to destroy NPZC. 6) There may be pending calls
// on the UI thread when NPZC is destroyed. 7) mWindow may have been
// cleared on the Gecko thread when the pending call happens on the UI
// thread.
//
// 1) happens through OnDetach, which first notifies the UI
// thread through Destroy; Destroy then calls DisposeNative, which
// finally disposes the native instance back on the Gecko thread. Using
// Destroy to indirectly call DisposeNative here also solves 5), by
// making everything go through the UI thread, avoiding contention.
//
// 2) and 3) are solved by clearing mWindow, which signals to the
// pending event that we had shut down. In that case the event bails
// and does not touch mWindow.
//
// 4) happens through DisposeNative directly. OnDetach is not
// called.
//
// 6) is solved by keeping a destroyed flag in the Java NPZC instance,
// and only make a pending call if the destroyed flag is not set.
//
// 7) is solved by taking a lock whenever mWindow is modified on the
// Gecko thread or accessed on the UI thread. That way, we don't
// release mWindow until the UI thread is done using it, thus avoiding
// the race condition.
typedef NativePanZoomController::GlobalRef NPZCRef;
auto callDestroy = [] (const NPZCRef& npzc) {
npzc->Destroy();
};
NativePanZoomController::GlobalRef npzc = mNPZC;
RefPtr<nsThread> uiThread = GetAndroidUiThread();
if (!uiThread) {
return;
}
uiThread->Dispatch(NewRunnableFunction(
static_cast<void(*)(const NPZCRef&)>(callDestroy),
mozilla::Move(npzc)), nsIThread::DISPATCH_NORMAL);
}
public:
void SetIsLongpressEnabled(bool aIsLongpressEnabled)
{
RefPtr<IAPZCTreeManager> controller;
if (LockedWindowPtr window{mWindow}) {
controller = window->mAPZC;
}
if (controller) {
controller->SetLongTapEnabled(aIsLongpressEnabled);
}
}
bool HandleScrollEvent(int64_t aTime, int32_t aMetaState,
float aX, float aY,
float aHScroll, float aVScroll)
{
MOZ_ASSERT(AndroidBridge::IsJavaUiThread());
RefPtr<IAPZCTreeManager> controller;
if (LockedWindowPtr window{mWindow}) {
controller = window->mAPZC;
}
if (!controller) {
return false;
}
ScreenPoint origin = ScreenPoint(aX, aY);
ScrollWheelInput input(aTime, GetEventTimeStamp(aTime), GetModifiers(aMetaState),
ScrollWheelInput::SCROLLMODE_SMOOTH,
ScrollWheelInput::SCROLLDELTA_PIXEL,
origin,
aHScroll, aVScroll,
false);
ScrollableLayerGuid guid;
uint64_t blockId;
nsEventStatus status = controller->ReceiveInputEvent(input, &guid, &blockId);
if (status == nsEventStatus_eConsumeNoDefault) {
return true;
}
PostInputEvent([input, guid, blockId, status] (nsWindow* window) {
WidgetWheelEvent wheelEvent = input.ToWidgetWheelEvent(window);
window->ProcessUntransformedAPZEvent(&wheelEvent, guid,
blockId, status);
});
return true;
}
private:
static MouseInput::ButtonType GetButtonType(int button)
{
MouseInput::ButtonType result = MouseInput::NONE;
switch (button) {
case java::sdk::MotionEvent::BUTTON_PRIMARY:
result = MouseInput::LEFT_BUTTON;
break;
case java::sdk::MotionEvent::BUTTON_SECONDARY:
result = MouseInput::RIGHT_BUTTON;
break;
case java::sdk::MotionEvent::BUTTON_TERTIARY:
result = MouseInput::MIDDLE_BUTTON;
break;
default:
break;
}
return result;
}
static int16_t ConvertButtons(int buttons) {
int16_t result = 0;
if (buttons & java::sdk::MotionEvent::BUTTON_PRIMARY) {
result |= WidgetMouseEventBase::eLeftButtonFlag;
}
if (buttons & java::sdk::MotionEvent::BUTTON_SECONDARY) {
result |= WidgetMouseEventBase::eRightButtonFlag;
}
if (buttons & java::sdk::MotionEvent::BUTTON_TERTIARY) {
result |= WidgetMouseEventBase::eMiddleButtonFlag;
}
if (buttons & java::sdk::MotionEvent::BUTTON_BACK) {
result |= WidgetMouseEventBase::e4thButtonFlag;
}
if (buttons & java::sdk::MotionEvent::BUTTON_FORWARD) {
result |= WidgetMouseEventBase::e5thButtonFlag;
}
return result;
}
public:
bool HandleMouseEvent(int32_t aAction, int64_t aTime, int32_t aMetaState,
float aX, float aY, int buttons)
{
MOZ_ASSERT(AndroidBridge::IsJavaUiThread());
RefPtr<IAPZCTreeManager> controller;
if (LockedWindowPtr window{mWindow}) {
controller = window->mAPZC;
}
if (!controller) {
return false;
}
MouseInput::MouseType mouseType = MouseInput::MOUSE_NONE;
MouseInput::ButtonType buttonType = MouseInput::NONE;
switch (aAction) {
case AndroidMotionEvent::ACTION_DOWN:
mouseType = MouseInput::MOUSE_DOWN;
buttonType = GetButtonType(buttons ^ mPreviousButtons);
mPreviousButtons = buttons;
break;
case AndroidMotionEvent::ACTION_UP:
mouseType = MouseInput::MOUSE_UP;
buttonType = GetButtonType(buttons ^ mPreviousButtons);
mPreviousButtons = buttons;
break;
case AndroidMotionEvent::ACTION_MOVE:
mouseType = MouseInput::MOUSE_MOVE;
break;
case AndroidMotionEvent::ACTION_HOVER_MOVE:
mouseType = MouseInput::MOUSE_MOVE;
break;
case AndroidMotionEvent::ACTION_HOVER_ENTER:
mouseType = MouseInput::MOUSE_WIDGET_ENTER;
break;
case AndroidMotionEvent::ACTION_HOVER_EXIT:
mouseType = MouseInput::MOUSE_WIDGET_EXIT;
break;
default:
break;
}
if (mouseType == MouseInput::MOUSE_NONE) {
return false;
}
ScreenPoint origin = ScreenPoint(aX, aY);
MouseInput input(mouseType, buttonType, nsIDOMMouseEvent::MOZ_SOURCE_MOUSE, ConvertButtons(buttons), origin, aTime, GetEventTimeStamp(aTime), GetModifiers(aMetaState));
ScrollableLayerGuid guid;
uint64_t blockId;
nsEventStatus status = controller->ReceiveInputEvent(input, &guid, &blockId);
if (status == nsEventStatus_eConsumeNoDefault) {
return true;
}
PostInputEvent([input, guid, blockId, status] (nsWindow* window) {
WidgetMouseEvent mouseEvent = input.ToWidgetMouseEvent(window);
window->ProcessUntransformedAPZEvent(&mouseEvent, guid,
blockId, status);
});
return true;
}
bool HandleMotionEvent(const NativePanZoomController::LocalRef& aInstance,
int32_t aAction, int32_t aActionIndex,
int64_t aTime, int32_t aMetaState,
jni::IntArray::Param aPointerId,
jni::FloatArray::Param aX,
jni::FloatArray::Param aY,
jni::FloatArray::Param aOrientation,
jni::FloatArray::Param aPressure,
jni::FloatArray::Param aToolMajor,
jni::FloatArray::Param aToolMinor)
{
MOZ_ASSERT(AndroidBridge::IsJavaUiThread());
RefPtr<IAPZCTreeManager> controller;
if (LockedWindowPtr window{mWindow}) {
controller = window->mAPZC;
}
if (!controller) {
return false;
}
nsTArray<int32_t> pointerId(aPointerId->GetElements());
MultiTouchInput::MultiTouchType type;
size_t startIndex = 0;
size_t endIndex = pointerId.Length();
switch (aAction) {
case sdk::MotionEvent::ACTION_DOWN:
case sdk::MotionEvent::ACTION_POINTER_DOWN:
type = MultiTouchInput::MULTITOUCH_START;
break;
case sdk::MotionEvent::ACTION_MOVE:
type = MultiTouchInput::MULTITOUCH_MOVE;
break;
case sdk::MotionEvent::ACTION_UP:
case sdk::MotionEvent::ACTION_POINTER_UP:
// for pointer-up events we only want the data from
// the one pointer that went up
type = MultiTouchInput::MULTITOUCH_END;
startIndex = aActionIndex;
endIndex = aActionIndex + 1;
break;
case sdk::MotionEvent::ACTION_OUTSIDE:
case sdk::MotionEvent::ACTION_CANCEL:
type = MultiTouchInput::MULTITOUCH_CANCEL;
break;
default:
return false;
}
MultiTouchInput input(type, aTime, GetEventTimeStamp(aTime), 0);
input.modifiers = GetModifiers(aMetaState);
input.mTouches.SetCapacity(endIndex - startIndex);
nsTArray<float> x(aX->GetElements());
nsTArray<float> y(aY->GetElements());
nsTArray<float> orientation(aOrientation->GetElements());
nsTArray<float> pressure(aPressure->GetElements());
nsTArray<float> toolMajor(aToolMajor->GetElements());
nsTArray<float> toolMinor(aToolMinor->GetElements());
MOZ_ASSERT(pointerId.Length() == x.Length());
MOZ_ASSERT(pointerId.Length() == y.Length());
MOZ_ASSERT(pointerId.Length() == orientation.Length());
MOZ_ASSERT(pointerId.Length() == pressure.Length());
MOZ_ASSERT(pointerId.Length() == toolMajor.Length());
MOZ_ASSERT(pointerId.Length() == toolMinor.Length());
for (size_t i = startIndex; i < endIndex; i++) {
float orien = orientation[i] * 180.0f / M_PI;
// w3c touchevents spec does not allow orientations == 90
// this shifts it to -90, which will be shifted to zero below
if (orien >= 90.0) {
orien -= 180.0f;
}
nsIntPoint point = nsIntPoint(int32_t(floorf(x[i])),
int32_t(floorf(y[i])));
// w3c touchevent radii are given with an orientation between 0 and
// 90. The radii are found by removing the orientation and
// measuring the x and y radii of the resulting ellipse. For
// Android orientations >= 0 and < 90, use the y radius as the
// major radius, and x as the minor radius. However, for an
// orientation < 0, we have to shift the orientation by adding 90,
// and reverse which radius is major and minor.
gfx::Size radius;
if (orien < 0.0f) {
orien += 90.0f;
radius = gfx::Size(int32_t(toolMajor[i] / 2.0f),
int32_t(toolMinor[i] / 2.0f));
} else {
radius = gfx::Size(int32_t(toolMinor[i] / 2.0f),
int32_t(toolMajor[i] / 2.0f));
}
input.mTouches.AppendElement(SingleTouchData(
pointerId[i], ScreenIntPoint::FromUnknownPoint(point),
ScreenSize::FromUnknownSize(radius), orien, pressure[i]));
}
ScrollableLayerGuid guid;
uint64_t blockId;
nsEventStatus status =
controller->ReceiveInputEvent(input, &guid, &blockId);
if (status == nsEventStatus_eConsumeNoDefault) {
return true;
}
// Dispatch APZ input event on Gecko thread.
PostInputEvent([input, guid, blockId, status] (nsWindow* window) {
WidgetTouchEvent touchEvent = input.ToWidgetTouchEvent(window);
window->ProcessUntransformedAPZEvent(&touchEvent, guid,
blockId, status);
window->DispatchHitTest(touchEvent);
});
return true;
}
void UpdateOverscrollVelocity(const float x, const float y)
{
mNPZC->UpdateOverscrollVelocity(x, y);
}
void UpdateOverscrollOffset(const float x, const float y)
{
mNPZC->UpdateOverscrollOffset(x, y);
}
void SetSelectionDragState(const bool aState)
{
mNPZC->OnSelectionDragState(aState);
}
};
template<> const char
nsWindow::NativePtr<nsWindow::NPZCSupport>::sName[] = "NPZCSupport";
NS_IMPL_ISUPPORTS(nsWindow::AndroidView,
nsIAndroidEventDispatcher,
nsIAndroidView)
nsresult
nsWindow::AndroidView::GetSettings(JSContext* aCx, JS::MutableHandleValue aOut)
{
if (!mSettings) {
aOut.setNull();
return NS_OK;
}
// Lock to prevent races with UI thread.
auto lock = mSettings.Lock();
return widget::EventDispatcher::UnboxBundle(aCx, mSettings, aOut);
}
/**
* Compositor has some unique requirements for its native calls, so make it
* separate from GeckoViewSupport.
*/
class nsWindow::LayerViewSupport final
: public LayerView::Compositor::Natives<LayerViewSupport>
{
using LockedWindowPtr = WindowPtr<LayerViewSupport>::Locked;
WindowPtr<LayerViewSupport> mWindow;
LayerView::Compositor::GlobalRef mCompositor;
GeckoLayerClient::GlobalRef mLayerClient;
Atomic<bool, ReleaseAcquire> mCompositorPaused;
jni::Object::GlobalRef mSurface;
// In order to use Event::HasSameTypeAs in PostTo(), we cannot make
// LayerViewEvent a template because each template instantiation is
// a different type. So implement LayerViewEvent as a ProxyEvent.
class LayerViewEvent final : public nsAppShell::ProxyEvent
{
using Event = nsAppShell::Event;
public:
static UniquePtr<Event> MakeEvent(UniquePtr<Event>&& event)
{
return MakeUnique<LayerViewEvent>(mozilla::Move(event));
}
LayerViewEvent(UniquePtr<Event>&& event)
: nsAppShell::ProxyEvent(mozilla::Move(event))
{}
void PostTo(LinkedList<Event>& queue) override
{
// Give priority to compositor events, but keep in order with
// existing compositor events.
nsAppShell::Event* event = queue.getFirst();
while (event && event->HasSameTypeAs(this)) {
event = event->getNext();
}
if (event) {
event->setPrevious(this);
} else {
queue.insertBack(this);
}
}
};
public:
typedef LayerView::Compositor::Natives<LayerViewSupport> Base;
template<class Functor>
static void OnNativeCall(Functor&& aCall)
{
if (aCall.IsTarget(&LayerViewSupport::CreateCompositor)) {
// This call is blocking.
nsAppShell::SyncRunEvent(nsAppShell::LambdaEvent<Functor>(
mozilla::Move(aCall)), &LayerViewEvent::MakeEvent);
return;
}
MOZ_CRASH("Unexpected call");
}
static LayerViewSupport*
FromNative(const LayerView::Compositor::LocalRef& instance)
{
return GetNative(instance);
}
LayerViewSupport(NativePtr<LayerViewSupport>* aPtr, nsWindow* aWindow,
const LayerView::Compositor::LocalRef& aInstance)
: mWindow(aPtr, aWindow)
, mCompositor(aInstance)
, mCompositorPaused(true)
{
MOZ_ASSERT(mWindow);
}
~LayerViewSupport()
{}
using Base::AttachNative;
using Base::DisposeNative;
void OnDetach()
{
mCompositor->Destroy();
}
const GeckoLayerClient::Ref& GetLayerClient() const
{
return mLayerClient;
}
bool CompositorPaused() const
{
return mCompositorPaused;
}
jni::Object::Param GetSurface()
{
return mSurface;
}
private:
void OnResumedCompositor()
{
MOZ_ASSERT(NS_IsMainThread());
// When we receive this, the compositor has already been told to
// resume. (It turns out that waiting till we reach here to tell
// the compositor to resume takes too long, resulting in a black
// flash.) This means it's now safe for layer updates to occur.
// Since we might have prevented one or more draw events from
// occurring while the compositor was paused, we need to schedule
// a draw event now.
if (!mCompositorPaused) {
mWindow->RedrawAll();
}
}
/**
* Compositor methods
*/
public:
void AttachToJava(jni::Object::Param aClient, jni::Object::Param aNPZC)
{
MOZ_ASSERT(NS_IsMainThread());
if (!mWindow) {
return; // Already shut down.
}
mLayerClient = GeckoLayerClient::Ref::From(aClient);
MOZ_ASSERT(aNPZC);
auto npzc = NativePanZoomController::LocalRef(
jni::GetGeckoThreadEnv(),
NativePanZoomController::Ref::From(aNPZC));
mWindow->mNPZCSupport.Attach(npzc, mWindow, npzc);
mLayerClient->OnGeckoReady();
// Set the first-paint flag so that we (re-)link any new Java objects
// to Gecko, co-ordinate viewports, etc.
if (RefPtr<CompositorBridgeChild> bridge = mWindow->GetCompositorBridgeChild()) {
bridge->SendForceIsFirstPaint();
}
}
void OnSizeChanged(int32_t aWindowWidth, int32_t aWindowHeight,
int32_t aScreenWidth, int32_t aScreenHeight)
{
MOZ_ASSERT(NS_IsMainThread());
if (!mWindow) {
return; // Already shut down.
}
if (aWindowWidth != mWindow->mBounds.width ||
aWindowHeight != mWindow->mBounds.height) {
mWindow->Resize(aWindowWidth, aWindowHeight, /* repaint */ false);
}
}
void CreateCompositor(int32_t aWidth, int32_t aHeight,
jni::Object::Param aSurface)
{
MOZ_ASSERT(NS_IsMainThread());
if (!mWindow) {
return; // Already shut down.
}
mSurface = aSurface;
mWindow->CreateLayerManager(aWidth, aHeight);
mCompositorPaused = false;
OnResumedCompositor();
}
void SyncPauseCompositor()
{
MOZ_ASSERT(AndroidBridge::IsJavaUiThread());
if (RefPtr<UiCompositorControllerChild> child = GetUiCompositorControllerChild()) {
mCompositorPaused = true;
child->Pause();
}
}
void SyncResumeCompositor()
{
MOZ_ASSERT(AndroidBridge::IsJavaUiThread());
if (RefPtr<UiCompositorControllerChild> child = GetUiCompositorControllerChild()) {
mCompositorPaused = false;
child->Resume();
}
}
void SyncResumeResizeCompositor(const LayerView::Compositor::LocalRef& aObj,
int32_t aWidth, int32_t aHeight,
jni::Object::Param aSurface)
{
MOZ_ASSERT(AndroidBridge::IsJavaUiThread());
mSurface = aSurface;
if (RefPtr<UiCompositorControllerChild> child = GetUiCompositorControllerChild()) {
child->ResumeAndResize(aWidth, aHeight);
}
mCompositorPaused = false;
class OnResumedEvent : public nsAppShell::Event
{
LayerView::Compositor::GlobalRef mCompositor;
public:
OnResumedEvent(LayerView::Compositor::GlobalRef&& aCompositor)
: mCompositor(mozilla::Move(aCompositor))
{}
void Run() override
{
MOZ_ASSERT(NS_IsMainThread());
JNIEnv* const env = jni::GetGeckoThreadEnv();
LayerViewSupport* const lvs = GetNative(
LayerView::Compositor::LocalRef(env, mCompositor));
if (!lvs || !lvs->mWindow) {
env->ExceptionClear();
return; // Already shut down.
}
lvs->OnResumedCompositor();
}
};
// Use priority queue for timing-sensitive event.
nsAppShell::PostEvent(MakeUnique<LayerViewEvent>(
MakeUnique<OnResumedEvent>(aObj)));
}
void SyncInvalidateAndScheduleComposite()
{
RefPtr<UiCompositorControllerChild> child = GetUiCompositorControllerChild();
if (!child) {
return;
}
if (!AndroidBridge::IsJavaUiThread()) {
RefPtr<nsThread> uiThread = GetAndroidUiThread();
if (uiThread) {
uiThread->Dispatch(NewRunnableMethod("layers::UiCompositorControllerChild::InvalidateAndRender",
child,
&UiCompositorControllerChild::InvalidateAndRender),
nsIThread::DISPATCH_NORMAL);
}
return;
}
child->InvalidateAndRender();
}
void SetMaxToolbarHeight(int32_t aHeight)
{
MOZ_ASSERT(AndroidBridge::IsJavaUiThread());
if (RefPtr<UiCompositorControllerChild> child = GetUiCompositorControllerChild()) {
child->SetMaxToolbarHeight(aHeight);
}
}
void SetPinned(bool aPinned, int32_t aReason)
{
RefPtr<UiCompositorControllerChild> child = GetUiCompositorControllerChild();
if (!child) {
return;
}
if (!AndroidBridge::IsJavaUiThread()) {
RefPtr<nsThread> uiThread = GetAndroidUiThread();
if (uiThread) {
uiThread->Dispatch(NewRunnableMethod<bool, int32_t>(
"layers::UiCompositorControllerChild::SetPinned",
child, &UiCompositorControllerChild::SetPinned, aPinned, aReason),
nsIThread::DISPATCH_NORMAL);
}
return;
}
child->SetPinned(aPinned, aReason);
}
void SendToolbarAnimatorMessage(int32_t aMessage)
{
RefPtr<UiCompositorControllerChild> child = GetUiCompositorControllerChild();
if (!child) {
return;
}
if (!AndroidBridge::IsJavaUiThread()) {
RefPtr<nsThread> uiThread = GetAndroidUiThread();
if (uiThread) {
uiThread->Dispatch(NewRunnableMethod<int32_t>(
"layers::UiCompositorControllerChild::ToolbarAnimatorMessageFromUI",
child, &UiCompositorControllerChild::ToolbarAnimatorMessageFromUI, aMessage),
nsIThread::DISPATCH_NORMAL);
}
return;
}
child->ToolbarAnimatorMessageFromUI(aMessage);
}
void RecvToolbarAnimatorMessage(int32_t aMessage)
{
mCompositor->RecvToolbarAnimatorMessage(aMessage);
}
void SetDefaultClearColor(int32_t aColor)
{
MOZ_ASSERT(AndroidBridge::IsJavaUiThread());
if (RefPtr<UiCompositorControllerChild> child = GetUiCompositorControllerChild()) {
child->SetDefaultClearColor((uint32_t)aColor);
}
}
void RequestScreenPixels()
{
MOZ_ASSERT(AndroidBridge::IsJavaUiThread());
if (RefPtr<UiCompositorControllerChild> child = GetUiCompositorControllerChild()) {
child->RequestScreenPixels();
}
}
void RecvScreenPixels(Shmem&& aMem, const ScreenIntSize& aSize)
{
MOZ_ASSERT(AndroidBridge::IsJavaUiThread());
auto pixels = mozilla::jni::IntArray::New(aMem.get<int>(), aMem.Size<int>());
mCompositor->RecvScreenPixels(aSize.width, aSize.height, pixels);
// Pixels have been copied, so Dealloc Shmem
if (RefPtr<UiCompositorControllerChild> child = GetUiCompositorControllerChild()) {
child->DeallocPixelBuffer(aMem);
}
}
void EnableLayerUpdateNotifications(bool aEnable)
{
MOZ_ASSERT(AndroidBridge::IsJavaUiThread());
if (RefPtr<UiCompositorControllerChild> child = GetUiCompositorControllerChild()) {
child->EnableLayerUpdateNotifications(aEnable);
}
}
void SendToolbarPixelsToCompositor(int32_t aWidth, int32_t aHeight, jni::IntArray::Param aPixels)
{
MOZ_ASSERT(AndroidBridge::IsJavaUiThread());
if (RefPtr<UiCompositorControllerChild> child = GetUiCompositorControllerChild()) {
Shmem mem;
child->AllocPixelBuffer(aPixels->Length() * sizeof(int32_t), &mem);
aPixels->CopyTo(mem.get<int32_t>(), mem.Size<int32_t>());
if (!child->ToolbarPixelsToCompositor(mem, ScreenIntSize(aWidth, aHeight))) {
child->DeallocPixelBuffer(mem);
}
}
}
already_AddRefed<UiCompositorControllerChild> GetUiCompositorControllerChild()
{
RefPtr<UiCompositorControllerChild> child;
if (LockedWindowPtr window{mWindow}) {
child = window->GetUiCompositorControllerChild();
}
MOZ_ASSERT(child);
return child.forget();
}
};
template<> const char
nsWindow::NativePtr<nsWindow::LayerViewSupport>::sName[] = "LayerViewSupport";
/* PresentationMediaPlayerManager native calls access inner nsWindow functionality so PMPMSupport is a child class of nsWindow */
class nsWindow::PMPMSupport final
: public PresentationMediaPlayerManager::Natives<PMPMSupport>
{
PMPMSupport() = delete;
static LayerViewSupport* GetLayerViewSupport(jni::Object::Param aView)
{
const auto& layerView = LayerView::Ref::From(aView);
LayerView::Compositor::LocalRef compositor = layerView->GetCompositor();
if (!layerView->IsCompositorReady() || !compositor) {
return nullptr;
}
LayerViewSupport* const lvs = LayerViewSupport::FromNative(compositor);
if (!lvs) {
// There is a pending exception whenever FromNative returns nullptr.
compositor.Env()->ExceptionClear();
}
return lvs;
}
public:
static ANativeWindow* sWindow;
static EGLSurface sSurface;
static void InvalidateAndScheduleComposite(jni::Object::Param aView)
{
LayerViewSupport* const lvs = GetLayerViewSupport(aView);
if (lvs) {
lvs->SyncInvalidateAndScheduleComposite();
}
}
static void AddPresentationSurface(const jni::Class::LocalRef& aCls,
jni::Object::Param aView,
jni::Object::Param aSurface)
{
RemovePresentationSurface();
LayerViewSupport* const lvs = GetLayerViewSupport(aView);
if (!lvs) {
return;
}
ANativeWindow* const window = ANativeWindow_fromSurface(
aCls.Env(), aSurface.Get());
if (!window) {
return;
}
sWindow = window;
const bool wasAlreadyPaused = lvs->CompositorPaused();
if (!wasAlreadyPaused) {
lvs->SyncPauseCompositor();
}
if (sSurface) {
// Destroy the EGL surface! The compositor is paused so it should
// be okay to destroy the surface here.
mozilla::gl::GLContextProvider::DestroyEGLSurface(sSurface);
sSurface = nullptr;
}
if (!wasAlreadyPaused) {
lvs->SyncResumeCompositor();
}
lvs->SyncInvalidateAndScheduleComposite();
}
static void RemovePresentationSurface()
{
if (sWindow) {
ANativeWindow_release(sWindow);
sWindow = nullptr;
}
}
};
ANativeWindow* nsWindow::PMPMSupport::sWindow;
EGLSurface nsWindow::PMPMSupport::sSurface;
nsWindow::GeckoViewSupport::~GeckoViewSupport()
{
// Disassociate our GeckoEditable instance with our native object.
MOZ_ASSERT(window.mEditableSupport && window.mEditable);
window.mEditableSupport.Detach();
window.mEditable->OnViewChange(nullptr);
window.mEditable = nullptr;
if (window.mNPZCSupport) {
window.mNPZCSupport.Detach();
}
if (window.mLayerViewSupport) {
window.mLayerViewSupport.Detach();
}
}
/* static */ void
nsWindow::GeckoViewSupport::Open(const jni::Class::LocalRef& aCls,
GeckoView::Window::Param aWindow,
GeckoView::Param aView,
jni::Object::Param aCompositor,
jni::Object::Param aDispatcher,
jni::String::Param aChromeURI,
jni::Object::Param aSettings,
int32_t aScreenId,
bool aPrivateMode)
{
MOZ_ASSERT(NS_IsMainThread());
AUTO_PROFILER_LABEL("nsWindow::GeckoViewSupport::Open", OTHER);
nsCOMPtr<nsIWindowWatcher> ww = do_GetService(NS_WINDOWWATCHER_CONTRACTID);
MOZ_RELEASE_ASSERT(ww);
nsAutoCString url;
if (aChromeURI) {
url = aChromeURI->ToCString();
} else {
nsresult rv = Preferences::GetCString("toolkit.defaultChromeURI", url);
if (NS_FAILED(rv)) {
url = NS_LITERAL_CSTRING("chrome://geckoview/content/geckoview.xul");
}
}
RefPtr<AndroidView> androidView = new AndroidView();
androidView->mEventDispatcher->Attach(
java::EventDispatcher::Ref::From(aDispatcher), nullptr);
if (aSettings) {
androidView->mSettings = java::GeckoBundle::Ref::From(aSettings);
}
nsAutoCString chromeFlags("chrome,dialog=0,resizable,scrollbars");
if (aPrivateMode) {
chromeFlags += ",private";
}
nsCOMPtr<mozIDOMWindowProxy> domWindow;
ww->OpenWindow(nullptr, url.get(), nullptr, chromeFlags.get(),
androidView, getter_AddRefs(domWindow));
MOZ_RELEASE_ASSERT(domWindow);
nsCOMPtr<nsPIDOMWindowOuter> pdomWindow =
nsPIDOMWindowOuter::From(domWindow);
nsCOMPtr<nsIWidget> widget = WidgetUtils::DOMWindowToWidget(pdomWindow);
MOZ_ASSERT(widget);
const auto window = static_cast<nsWindow*>(widget.get());
window->SetScreenId(aScreenId);
// Attach a new GeckoView support object to the new window.
window->mGeckoViewSupport = mozilla::MakeUnique<GeckoViewSupport>(
window, (GeckoView::Window::LocalRef(aCls.Env(), aWindow)));
window->mGeckoViewSupport->mDOMWindow = pdomWindow;
// Attach a new GeckoEditable support object to the new window.
auto editable = GeckoEditable::New(aView);
auto editableChild = GeckoEditableChild::New(editable);
editable->SetDefaultEditableChild(editableChild);
window->mEditable = editable;
window->mEditableSupport.Attach(editableChild, window, editableChild);
// Attach the Compositor to the new window.
auto compositor = LayerView::Compositor::LocalRef(
aCls.Env(), LayerView::Compositor::Ref::From(aCompositor));
window->mLayerViewSupport.Attach(compositor, window, compositor);
// Attach again using the new window.
androidView->mEventDispatcher->Attach(
java::EventDispatcher::Ref::From(aDispatcher), pdomWindow);
window->mAndroidView = androidView;
if (window->mWidgetListener) {
nsCOMPtr<nsIXULWindow> xulWindow(
window->mWidgetListener->GetXULWindow());
if (xulWindow) {
// Our window is not intrinsically sized, so tell nsXULWindow to
// not set a size for us.
xulWindow->SetIntrinsicallySized(false);
}
}
}
void
nsWindow::GeckoViewSupport::Close()
{
if (window.mAndroidView) {
window.mAndroidView->mEventDispatcher->Detach();
}
if (!mDOMWindow) {
return;
}
mDOMWindow->ForceClose();
mDOMWindow = nullptr;
mGeckoViewWindow = nullptr;
}
void
nsWindow::GeckoViewSupport::Reattach(const GeckoView::Window::LocalRef& inst,
GeckoView::Param aView,
jni::Object::Param aCompositor,
jni::Object::Param aDispatcher)
{
// Associate our previous GeckoEditable with the new GeckoView.
MOZ_ASSERT(window.mEditable);
window.mEditable->OnViewChange(aView);
// mNPZCSupport might have already been detached through the Java side calling
// NativePanZoomController.destroy().
if (window.mNPZCSupport) {
window.mNPZCSupport.Detach();
}
MOZ_ASSERT(window.mLayerViewSupport);
window.mLayerViewSupport.Detach();
auto compositor = LayerView::Compositor::LocalRef(
inst.Env(), LayerView::Compositor::Ref::From(aCompositor));
window.mLayerViewSupport.Attach(compositor, &window, compositor);
compositor->Reattach();
MOZ_ASSERT(window.mAndroidView);
window.mAndroidView->mEventDispatcher->Attach(
java::EventDispatcher::Ref::From(aDispatcher), mDOMWindow);
mGeckoViewWindow->OnReattach(aView);
}
void
nsWindow::GeckoViewSupport::LoadUri(jni::String::Param aUri, int32_t aFlags)
{
if (!mDOMWindow) {
return;
}
nsCOMPtr<nsIURI> uri = nsAppShell::ResolveURI(aUri->ToCString());
if (NS_WARN_IF(!uri)) {
return;
}
nsCOMPtr<nsIDOMChromeWindow> chromeWin = do_QueryInterface(mDOMWindow);
nsCOMPtr<nsIBrowserDOMWindow> browserWin;
if (NS_WARN_IF(!chromeWin) || NS_WARN_IF(NS_FAILED(
chromeWin->GetBrowserDOMWindow(getter_AddRefs(browserWin))))) {
return;
}
const int flags = aFlags == GeckoView::LOAD_NEW_TAB ?
nsIBrowserDOMWindow::OPEN_NEWTAB :
aFlags == GeckoView::LOAD_SWITCH_TAB ?
nsIBrowserDOMWindow::OPEN_SWITCHTAB :
nsIBrowserDOMWindow::OPEN_CURRENTWINDOW;
nsCOMPtr<mozIDOMWindowProxy> newWin;
if (NS_FAILED(browserWin->OpenURI(
uri, nullptr, flags, nsIBrowserDOMWindow::OPEN_EXTERNAL,
nsContentUtils::GetSystemPrincipal(),
getter_AddRefs(newWin)))) {
NS_WARNING("Failed to open URI");
}
}
void
nsWindow::InitNatives()
{
nsWindow::GeckoViewSupport::Base::Init();
nsWindow::LayerViewSupport::Init();
nsWindow::NPZCSupport::Init();
if (jni::IsFennec()) {
nsWindow::PMPMSupport::Init();
}
}
nsWindow*
nsWindow::TopWindow()
{
if (!gTopLevelWindows.IsEmpty())
return gTopLevelWindows[0];
return nullptr;
}
void
nsWindow::LogWindow(nsWindow *win, int index, int indent)
{
#if defined(DEBUG) || defined(FORCE_ALOG)
char spaces[] = " ";
spaces[indent < 20 ? indent : 20] = 0;
ALOG("%s [% 2d] 0x%p [parent 0x%p] [% 3d,% 3dx% 3d,% 3d] vis %d type %d",
spaces, index, win, win->mParent,
win->mBounds.x, win->mBounds.y,
win->mBounds.width, win->mBounds.height,
win->mIsVisible, win->mWindowType);
#endif
}
void
nsWindow::DumpWindows()
{
DumpWindows(gTopLevelWindows);
}
void
nsWindow::DumpWindows(const nsTArray<nsWindow*>& wins, int indent)
{
for (uint32_t i = 0; i < wins.Length(); ++i) {
nsWindow *w = wins[i];
LogWindow(w, i, indent);
DumpWindows(w->mChildren, indent+1);
}
}
nsWindow::nsWindow() :
mScreenId(0), // Use 0 (primary screen) as the default value.
mIsVisible(false),
mParent(nullptr),
mIsFullScreen(false)
{
}
nsWindow::~nsWindow()
{
gTopLevelWindows.RemoveElement(this);
ALOG("nsWindow %p destructor", (void*)this);
// The mCompositorSession should have been cleaned up in nsWindow::Destroy()
// DestroyLayerManager() will call DestroyCompositor() which will crash if
// called from nsBaseWidget destructor. See Bug 1392705
MOZ_ASSERT(!mCompositorSession);
}
bool
nsWindow::IsTopLevel()
{
return mWindowType == eWindowType_toplevel ||
mWindowType == eWindowType_dialog ||
mWindowType == eWindowType_invisible;
}
nsresult
nsWindow::Create(nsIWidget* aParent,
nsNativeWidget aNativeParent,
const LayoutDeviceIntRect& aRect,
nsWidgetInitData* aInitData)
{
ALOG("nsWindow[%p]::Create %p [%d %d %d %d]", (void*)this, (void*)aParent,
aRect.x, aRect.y, aRect.width, aRect.height);
nsWindow *parent = (nsWindow*) aParent;
if (aNativeParent) {
if (parent) {
ALOG("Ignoring native parent on Android window [%p], "
"since parent was specified (%p %p)", (void*)this,
(void*)aNativeParent, (void*)aParent);
} else {
parent = (nsWindow*) aNativeParent;
}
}
mBounds = aRect;
BaseCreate(nullptr, aInitData);
NS_ASSERTION(IsTopLevel() || parent,
"non-top-level window doesn't have a parent!");
if (IsTopLevel()) {
gTopLevelWindows.AppendElement(this);
} else if (parent) {
parent->mChildren.AppendElement(this);
mParent = parent;
}
#ifdef DEBUG_ANDROID_WIDGET
DumpWindows();
#endif
return NS_OK;
}
void
nsWindow::Destroy()
{
nsBaseWidget::mOnDestroyCalled = true;
if (mGeckoViewSupport) {
// Disassociate our native object with GeckoView.
mGeckoViewSupport = nullptr;
}
// Stuff below may release the last ref to this
nsCOMPtr<nsIWidget> kungFuDeathGrip(this);
while (mChildren.Length()) {
// why do we still have children?
ALOG("### Warning: Destroying window %p and reparenting child %p to null!", (void*)this, (void*)mChildren[0]);
mChildren[0]->SetParent(nullptr);
}
// Ensure the compositor has been shutdown before this nsWindow is potentially deleted
nsBaseWidget::DestroyCompositor();
nsBaseWidget::Destroy();
if (IsTopLevel())
gTopLevelWindows.RemoveElement(this);
SetParent(nullptr);
nsBaseWidget::OnDestroy();
#ifdef DEBUG_ANDROID_WIDGET
DumpWindows();
#endif
}
nsresult
nsWindow::ConfigureChildren(const nsTArray<nsIWidget::Configuration>& config)
{
for (uint32_t i = 0; i < config.Length(); ++i) {
nsWindow *childWin = (nsWindow*) config[i].mChild.get();
childWin->Resize(config[i].mBounds.x,
config[i].mBounds.y,
config[i].mBounds.width,
config[i].mBounds.height,
false);
}
return NS_OK;
}
void
nsWindow::RedrawAll()
{
if (mAttachedWidgetListener) {
mAttachedWidgetListener->RequestRepaint();
} else if (mWidgetListener) {
mWidgetListener->RequestRepaint();
}
}
RefPtr<UiCompositorControllerChild>
nsWindow::GetUiCompositorControllerChild()
{
return mCompositorSession ? mCompositorSession->GetUiCompositorControllerChild() : nullptr;
}
int64_t
nsWindow::GetRootLayerId() const
{
return mCompositorSession ? mCompositorSession->RootLayerTreeId() : 0;
}
void
nsWindow::EnableEventDispatcher()
{
if (!mGeckoViewSupport) {
return;
}
mGeckoViewSupport->EnableEventDispatcher();
}
void
nsWindow::SetParent(nsIWidget *aNewParent)
{
if ((nsIWidget*)mParent == aNewParent)
return;
// If we had a parent before, remove ourselves from its list of
// children.
if (mParent)
mParent->mChildren.RemoveElement(this);
mParent = (nsWindow*)aNewParent;
if (mParent)
mParent->mChildren.AppendElement(this);
// if we are now in the toplevel window's hierarchy, schedule a redraw
if (FindTopLevel() == nsWindow::TopWindow())
RedrawAll();
}
nsIWidget*
nsWindow::GetParent()
{
return mParent;
}
float
nsWindow::GetDPI()
{
if (AndroidBridge::Bridge())
return AndroidBridge::Bridge()->GetDPI();
return 160.0f;
}
double
nsWindow::GetDefaultScaleInternal()
{
nsCOMPtr<nsIScreen> screen = GetWidgetScreen();
MOZ_ASSERT(screen);
RefPtr<nsScreenAndroid> screenAndroid = (nsScreenAndroid*) screen.get();
return screenAndroid->GetDensity();
}
void
nsWindow::Show(bool aState)
{
ALOG("nsWindow[%p]::Show %d", (void*)this, aState);
if (mWindowType == eWindowType_invisible) {
ALOG("trying to show invisible window! ignoring..");
return;
}
if (aState == mIsVisible)
return;
mIsVisible = aState;
if (IsTopLevel()) {
// XXX should we bring this to the front when it's shown,
// if it's a toplevel widget?
// XXX we should synthesize a eMouseExitFromWidget (for old top
// window)/eMouseEnterIntoWidget (for new top window) since we need
// to pretend that the top window always has focus. Not sure
// if Show() is the right place to do this, though.
if (aState) {
// It just became visible, so bring it to the front.
BringToFront();
} else if (nsWindow::TopWindow() == this) {
// find the next visible window to show
unsigned int i;
for (i = 1; i < gTopLevelWindows.Length(); i++) {
nsWindow *win = gTopLevelWindows[i];
if (!win->mIsVisible)
continue;
win->BringToFront();
break;
}
}
} else if (FindTopLevel() == nsWindow::TopWindow()) {
RedrawAll();
}
#ifdef DEBUG_ANDROID_WIDGET
DumpWindows();
#endif
}
bool
nsWindow::IsVisible() const
{
return mIsVisible;
}
void
nsWindow::ConstrainPosition(bool aAllowSlop,
int32_t *aX,
int32_t *aY)
{
ALOG("nsWindow[%p]::ConstrainPosition %d [%d %d]", (void*)this, aAllowSlop, *aX, *aY);
// constrain toplevel windows; children we don't care about
if (IsTopLevel()) {
*aX = 0;
*aY = 0;
}
}
void
nsWindow::Move(double aX,
double aY)
{
if (IsTopLevel())
return;
Resize(aX,
aY,
mBounds.width,
mBounds.height,
true);
}
void
nsWindow::Resize(double aWidth,
double aHeight,
bool aRepaint)
{
Resize(mBounds.x,
mBounds.y,
aWidth,
aHeight,
aRepaint);
}
void
nsWindow::Resize(double aX,
double aY,
double aWidth,
double aHeight,
bool aRepaint)
{
ALOG("nsWindow[%p]::Resize [%f %f %f %f] (repaint %d)", (void*)this, aX, aY, aWidth, aHeight, aRepaint);
bool needSizeDispatch = aWidth != mBounds.width || aHeight != mBounds.height;
mBounds.x = NSToIntRound(aX);
mBounds.y = NSToIntRound(aY);
mBounds.width = NSToIntRound(aWidth);
mBounds.height = NSToIntRound(aHeight);
if (needSizeDispatch) {
OnSizeChanged(gfx::IntSize::Truncate(aWidth, aHeight));
}
// Should we skip honoring aRepaint here?
if (aRepaint && FindTopLevel() == nsWindow::TopWindow())
RedrawAll();
}
void
nsWindow::SetZIndex(int32_t aZIndex)
{
ALOG("nsWindow[%p]::SetZIndex %d ignored", (void*)this, aZIndex);
}
void
nsWindow::SetSizeMode(nsSizeMode aMode)
{
if (aMode == mSizeMode) {
return;
}
nsBaseWidget::SetSizeMode(aMode);
switch (aMode) {
case nsSizeMode_Minimized:
GeckoAppShell::MoveTaskToBack();
break;
case nsSizeMode_Fullscreen:
MakeFullScreen(true);
break;
default:
break;
}
}
void
nsWindow::Enable(bool aState)
{
ALOG("nsWindow[%p]::Enable %d ignored", (void*)this, aState);
}
bool
nsWindow::IsEnabled() const
{
return true;
}
void
nsWindow::Invalidate(const LayoutDeviceIntRect& aRect)
{
}
nsWindow*
nsWindow::FindTopLevel()
{
nsWindow *toplevel = this;
while (toplevel) {
if (toplevel->IsTopLevel())
return toplevel;
toplevel = toplevel->mParent;
}
ALOG("nsWindow::FindTopLevel(): couldn't find a toplevel or dialog window in this [%p] widget's hierarchy!", (void*)this);
return this;
}
nsresult
nsWindow::SetFocus(bool aRaise)
{
nsWindow *top = FindTopLevel();
top->BringToFront();
return NS_OK;
}
void
nsWindow::BringToFront()
{
// If the window to be raised is the same as the currently raised one,
// do nothing. We need to check the focus manager as well, as the first
// window that is created will be first in the window list but won't yet
// be focused.
nsCOMPtr<nsIFocusManager> fm = do_GetService(FOCUSMANAGER_CONTRACTID);
nsCOMPtr<mozIDOMWindowProxy> existingTopWindow;
fm->GetActiveWindow(getter_AddRefs(existingTopWindow));
if (existingTopWindow && FindTopLevel() == nsWindow::TopWindow())
return;
if (!IsTopLevel()) {
FindTopLevel()->BringToFront();
return;
}
RefPtr<nsWindow> kungFuDeathGrip(this);
nsWindow *oldTop = nullptr;
if (!gTopLevelWindows.IsEmpty()) {
oldTop = gTopLevelWindows[0];
}
gTopLevelWindows.RemoveElement(this);
gTopLevelWindows.InsertElementAt(0, this);
if (oldTop) {
nsIWidgetListener* listener = oldTop->GetWidgetListener();
if (listener) {
listener->WindowDeactivated();
}
}
if (mWidgetListener) {
mWidgetListener->WindowActivated();
}
RedrawAll();
}
LayoutDeviceIntRect
nsWindow::GetScreenBounds()
{
return LayoutDeviceIntRect(WidgetToScreenOffset(), mBounds.Size());
}
LayoutDeviceIntPoint
nsWindow::WidgetToScreenOffset()
{
LayoutDeviceIntPoint p(0, 0);
nsWindow *w = this;
while (w && !w->IsTopLevel()) {
p.x += w->mBounds.x;
p.y += w->mBounds.y;
w = w->mParent;
}
return p;
}
nsresult
nsWindow::DispatchEvent(WidgetGUIEvent* aEvent,
nsEventStatus& aStatus)
{
aStatus = DispatchEvent(aEvent);
return NS_OK;
}
nsEventStatus
nsWindow::DispatchEvent(WidgetGUIEvent* aEvent)
{
if (mAttachedWidgetListener) {
return mAttachedWidgetListener->HandleEvent(aEvent, mUseAttachedEvents);
} else if (mWidgetListener) {
return mWidgetListener->HandleEvent(aEvent, mUseAttachedEvents);
}
return nsEventStatus_eIgnore;
}
nsresult
nsWindow::MakeFullScreen(bool aFullScreen, nsIScreen*)
{
if (!mAndroidView) {
return NS_ERROR_NOT_AVAILABLE;
}
mIsFullScreen = aFullScreen;
mAndroidView->mEventDispatcher->Dispatch(aFullScreen ?
u"GeckoView:FullScreenEnter" : u"GeckoView:FullScreenExit");
nsIWidgetListener* listener = GetWidgetListener();
if (listener) {
mSizeMode = mIsFullScreen ? nsSizeMode_Fullscreen : nsSizeMode_Normal;
listener->SizeModeChanged(mSizeMode);
listener->FullscreenChanged(mIsFullScreen);
}
return NS_OK;
}
mozilla::layers::LayerManager*
nsWindow::GetLayerManager(PLayerTransactionChild*, LayersBackend, LayerManagerPersistence)
{
if (mLayerManager) {
return mLayerManager;
}
return nullptr;
}
void
nsWindow::CreateLayerManager(int aCompositorWidth, int aCompositorHeight)
{
if (mLayerManager) {
return;
}
nsWindow *topLevelWindow = FindTopLevel();
if (!topLevelWindow || topLevelWindow->mWindowType == eWindowType_invisible) {
// don't create a layer manager for an invisible top-level window
return;
}
// Ensure that gfxPlatform is initialized first.
gfxPlatform::GetPlatform();
if (ShouldUseOffMainThreadCompositing()) {
CreateCompositor(aCompositorWidth, aCompositorHeight);
if (mLayerManager) {
return;
}
// If we get here, then off main thread compositing failed to initialize.
sFailedToCreateGLContext = true;
}
if (!ComputeShouldAccelerate() || sFailedToCreateGLContext) {
printf_stderr(" -- creating basic, not accelerated\n");
mLayerManager = CreateBasicLayerManager();
}
}
void
nsWindow::OnSizeChanged(const gfx::IntSize& aSize)
{
ALOG("nsWindow: %p OnSizeChanged [%d %d]", (void*)this, aSize.width, aSize.height);
mBounds.width = aSize.width;
mBounds.height = aSize.height;
if (mWidgetListener) {
mWidgetListener->WindowResized(this, aSize.width, aSize.height);
}
if (mAttachedWidgetListener) {
mAttachedWidgetListener->WindowResized(this, aSize.width, aSize.height);
}
}
void
nsWindow::InitEvent(WidgetGUIEvent& event, LayoutDeviceIntPoint* aPoint)
{
if (aPoint) {
event.mRefPoint = *aPoint;
} else {
event.mRefPoint = LayoutDeviceIntPoint(0, 0);
}
event.mTime = PR_Now() / 1000;
}
void
nsWindow::UpdateOverscrollVelocity(const float aX, const float aY)
{
if (NativePtr<NPZCSupport>::Locked npzcs{mNPZCSupport}) {
npzcs->UpdateOverscrollVelocity(aX, aY);
}
}
void
nsWindow::UpdateOverscrollOffset(const float aX, const float aY)
{
if (NativePtr<NPZCSupport>::Locked npzcs{mNPZCSupport}) {
npzcs->UpdateOverscrollOffset(aX, aY);
}
}
void
nsWindow::SetSelectionDragState(bool aState)
{
if (NativePtr<NPZCSupport>::Locked npzcs{mNPZCSupport}) {
npzcs->SetSelectionDragState(aState);
}
}
void *
nsWindow::GetNativeData(uint32_t aDataType)
{
switch (aDataType) {
// used by GLContextProviderEGL, nullptr is EGL_DEFAULT_DISPLAY
case NS_NATIVE_DISPLAY:
return nullptr;
case NS_NATIVE_WIDGET:
return (void *) this;
case NS_RAW_NATIVE_IME_CONTEXT: {
void* pseudoIMEContext = GetPseudoIMEContext();
if (pseudoIMEContext) {
return pseudoIMEContext;
}
// We assume that there is only one context per process on Android
return NS_ONLY_ONE_NATIVE_IME_CONTEXT;
}
case NS_JAVA_SURFACE:
if (NativePtr<LayerViewSupport>::Locked lvs{mLayerViewSupport}) {
return lvs->GetSurface().Get();
}
return nullptr;
case NS_PRESENTATION_WINDOW:
return PMPMSupport::sWindow;
case NS_PRESENTATION_SURFACE:
return PMPMSupport::sSurface;
}
return nullptr;
}
void
nsWindow::SetNativeData(uint32_t aDataType, uintptr_t aVal)
{
switch (aDataType) {
case NS_PRESENTATION_SURFACE:
PMPMSupport::sSurface = reinterpret_cast<EGLSurface>(aVal);
break;
}
}
void
nsWindow::DispatchHitTest(const WidgetTouchEvent& aEvent)
{
if (aEvent.mMessage == eTouchStart && aEvent.mTouches.Length() == 1) {
// Since touch events don't get retargeted by PositionedEventTargeting.cpp
// code on Fennec, we dispatch a dummy mouse event that *does* get
// retargeted. The Fennec browser.js code can use this to activate the
// highlight element in case the this touchstart is the start of a tap.
WidgetMouseEvent hittest(true, eMouseHitTest, this,
WidgetMouseEvent::eReal);
hittest.mRefPoint = aEvent.mTouches[0]->mRefPoint;
hittest.mIgnoreRootScrollFrame = true;
hittest.inputSource = nsIDOMMouseEvent::MOZ_SOURCE_TOUCH;
nsEventStatus status;
DispatchEvent(&hittest, status);
if (mAPZEventState && hittest.hitCluster) {
mAPZEventState->ProcessClusterHit();
}
}
}
mozilla::Modifiers
nsWindow::GetModifiers(int32_t metaState)
{
using mozilla::java::sdk::KeyEvent;
return (metaState & KeyEvent::META_ALT_MASK ? MODIFIER_ALT : 0)
| (metaState & KeyEvent::META_SHIFT_MASK ? MODIFIER_SHIFT : 0)
| (metaState & KeyEvent::META_CTRL_MASK ? MODIFIER_CONTROL : 0)
| (metaState & KeyEvent::META_META_MASK ? MODIFIER_META : 0)
| (metaState & KeyEvent::META_FUNCTION_ON ? MODIFIER_FN : 0)
| (metaState & KeyEvent::META_CAPS_LOCK_ON ? MODIFIER_CAPSLOCK : 0)
| (metaState & KeyEvent::META_NUM_LOCK_ON ? MODIFIER_NUMLOCK : 0)
| (metaState & KeyEvent::META_SCROLL_LOCK_ON ? MODIFIER_SCROLLLOCK : 0);
}
TimeStamp
nsWindow::GetEventTimeStamp(int64_t aEventTime)
{
// Android's event time is SystemClock.uptimeMillis that is counted in ms
// since OS was booted.
// (https://developer.android.com/reference/android/os/SystemClock.html)
// and this SystemClock.uptimeMillis uses SYSTEM_TIME_MONOTONIC.
// Our posix implemententaion of TimeStamp::Now uses SYSTEM_TIME_MONOTONIC
// too. Due to same implementation, we can use this via FromSystemTime.
int64_t tick =
BaseTimeDurationPlatformUtils::TicksFromMilliseconds(aEventTime);
return TimeStamp::FromSystemTime(tick);
}
void
nsWindow::GeckoViewSupport::EnableEventDispatcher()
{
if (!mGeckoViewWindow) {
return;
}
mGeckoViewWindow->SetState(GeckoView::State::READY());
}
void
nsWindow::UserActivity()
{
if (!mIdleService) {
mIdleService = do_GetService("@mozilla.org/widget/idleservice;1");
}
if (mIdleService) {
mIdleService->ResetIdleTimeOut(0);
}
}
TextEventDispatcherListener*
nsWindow::GetNativeTextEventDispatcherListener()
{
nsWindow* top = FindTopLevel();
MOZ_ASSERT(top);
if (!top->mEditableSupport) {
// Non-GeckoView windows don't support IME operations.
return nullptr;
}
return top->mEditableSupport;
}
void
nsWindow::SetInputContext(const InputContext& aContext,
const InputContextAction& aAction)
{
nsWindow* top = FindTopLevel();
MOZ_ASSERT(top);
if (!top->mEditableSupport) {
// Non-GeckoView windows don't support IME operations.
return;
}
// We are using an IME event later to notify Java, and the IME event
// will be processed by the top window. Therefore, to ensure the
// IME event uses the correct mInputContext, we need to let the top
// window process SetInputContext
top->mEditableSupport->SetInputContext(aContext, aAction);
}
InputContext
nsWindow::GetInputContext()
{
nsWindow* top = FindTopLevel();
MOZ_ASSERT(top);
if (!top->mEditableSupport) {
// Non-GeckoView windows don't support IME operations.
return InputContext();
}
// We let the top window process SetInputContext,
// so we should let it process GetInputContext as well.
return top->mEditableSupport->GetInputContext();
}
nsresult
nsWindow::SynthesizeNativeTouchPoint(uint32_t aPointerId,
TouchPointerState aPointerState,
LayoutDeviceIntPoint aPoint,
double aPointerPressure,
uint32_t aPointerOrientation,
nsIObserver* aObserver)
{
mozilla::widget::AutoObserverNotifier notifier(aObserver, "touchpoint");
int eventType;
switch (aPointerState) {
case TOUCH_CONTACT:
// This could be a ACTION_DOWN or ACTION_MOVE depending on the
// existing state; it is mapped to the right thing in Java.
eventType = sdk::MotionEvent::ACTION_POINTER_DOWN;
break;
case TOUCH_REMOVE:
// This could be turned into a ACTION_UP in Java
eventType = sdk::MotionEvent::ACTION_POINTER_UP;
break;
case TOUCH_CANCEL:
eventType = sdk::MotionEvent::ACTION_CANCEL;
break;
case TOUCH_HOVER: // not supported for now
default:
return NS_ERROR_UNEXPECTED;
}
MOZ_ASSERT(mLayerViewSupport);
GeckoLayerClient::LocalRef client = mLayerViewSupport->GetLayerClient();
client->SynthesizeNativeTouchPoint(aPointerId, eventType,
aPoint.x, aPoint.y, aPointerPressure, aPointerOrientation);
return NS_OK;
}
nsresult
nsWindow::SynthesizeNativeMouseEvent(LayoutDeviceIntPoint aPoint,
uint32_t aNativeMessage,
uint32_t aModifierFlags,
nsIObserver* aObserver)
{
mozilla::widget::AutoObserverNotifier notifier(aObserver, "mouseevent");
MOZ_ASSERT(mLayerViewSupport);
GeckoLayerClient::LocalRef client = mLayerViewSupport->GetLayerClient();
client->SynthesizeNativeMouseEvent(aNativeMessage, aPoint.x, aPoint.y);
return NS_OK;
}
nsresult
nsWindow::SynthesizeNativeMouseMove(LayoutDeviceIntPoint aPoint,
nsIObserver* aObserver)
{
mozilla::widget::AutoObserverNotifier notifier(aObserver, "mouseevent");
MOZ_ASSERT(mLayerViewSupport);
GeckoLayerClient::LocalRef client = mLayerViewSupport->GetLayerClient();
client->SynthesizeNativeMouseEvent(sdk::MotionEvent::ACTION_HOVER_MOVE, aPoint.x, aPoint.y);
return NS_OK;
}
bool
nsWindow::WidgetPaintsBackground()
{
static bool sWidgetPaintsBackground = true;
static bool sWidgetPaintsBackgroundPrefCached = false;
if (!sWidgetPaintsBackgroundPrefCached) {
sWidgetPaintsBackgroundPrefCached = true;
mozilla::Preferences::AddBoolVarCache(&sWidgetPaintsBackground,
"android.widget_paints_background",
true);
}
return sWidgetPaintsBackground;
}
bool
nsWindow::NeedsPaint()
{
if (!mLayerViewSupport || mLayerViewSupport->CompositorPaused() ||
// FindTopLevel() != nsWindow::TopWindow() ||
!GetLayerManager(nullptr)) {
return false;
}
return nsIWidget::NeedsPaint();
}
void
nsWindow::ConfigureAPZControllerThread()
{
APZThreadUtils::SetControllerThread(mozilla::GetAndroidUiThreadMessageLoop());
}
already_AddRefed<GeckoContentController>
nsWindow::CreateRootContentController()
{
RefPtr<GeckoContentController> controller = new AndroidContentController(this, mAPZEventState, mAPZC);
return controller.forget();
}
uint32_t
nsWindow::GetMaxTouchPoints() const
{
return GeckoAppShell::GetMaxTouchPoints();
}
void
nsWindow::UpdateZoomConstraints(const uint32_t& aPresShellId,
const FrameMetrics::ViewID& aViewId,
const mozilla::Maybe<ZoomConstraints>& aConstraints)
{
nsBaseWidget::UpdateZoomConstraints(aPresShellId, aViewId, aConstraints);
}
CompositorBridgeChild*
nsWindow::GetCompositorBridgeChild() const
{
return mCompositorSession ? mCompositorSession->GetCompositorBridgeChild() : nullptr;
}
already_AddRefed<nsIScreen>
nsWindow::GetWidgetScreen()
{
nsCOMPtr<nsIScreenManager> screenMgr =
do_GetService("@mozilla.org/gfx/screenmanager;1");
MOZ_ASSERT(screenMgr, "Failed to get nsIScreenManager");
RefPtr<nsScreenManagerAndroid> screenMgrAndroid =
(nsScreenManagerAndroid*) screenMgr.get();
return screenMgrAndroid->ScreenForId(mScreenId);
}
jni::DependentRef<java::GeckoLayerClient>
nsWindow::GetLayerClient()
{
if (NativePtr<LayerViewSupport>::Locked lvs{mLayerViewSupport}) {
return lvs->GetLayerClient().Get();
}
return nullptr;
}
void
nsWindow::RecvToolbarAnimatorMessageFromCompositor(int32_t aMessage)
{
MOZ_ASSERT(AndroidBridge::IsJavaUiThread());
if (NativePtr<LayerViewSupport>::Locked lvs{mLayerViewSupport}) {
lvs->RecvToolbarAnimatorMessage(aMessage);
}
}
void
nsWindow::UpdateRootFrameMetrics(const ScreenPoint& aScrollOffset, const CSSToScreenScale& aZoom)
{
MOZ_ASSERT(AndroidBridge::IsJavaUiThread());
if (NativePtr<LayerViewSupport>::Locked lvs{mLayerViewSupport}) {
GeckoLayerClient::LocalRef client = lvs->GetLayerClient();
client->UpdateRootFrameMetrics(aScrollOffset.x, aScrollOffset.y, aZoom.scale);
}
}
void
nsWindow::RecvScreenPixels(Shmem&& aMem, const ScreenIntSize& aSize)
{
MOZ_ASSERT(AndroidBridge::IsJavaUiThread());
if (NativePtr<LayerViewSupport>::Locked lvs{mLayerViewSupport}) {
lvs->RecvScreenPixels(mozilla::Move(aMem), aSize);
}
}
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