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gecko-dev
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gecko-dev/widget/android/nsWindow.cpp

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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));
}
template<class Lambda> bool
DispatchToUiThread(const char* aName, Lambda&& aLambda) {
if (RefPtr<nsThread> uiThread = GetAndroidUiThread()) {
uiThread->Dispatch(NS_NewRunnableFunction(aName, Move(aLambda)));
return true;
}
return false;
}
} // 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 GeckoSession::Window::Natives<GeckoViewSupport>
, public SupportsWeakPtr<GeckoViewSupport>
{
nsWindow& window;
GeckoSession::Window::GlobalRef mGeckoViewWindow;
public:
typedef GeckoSession::Window::Natives<GeckoViewSupport> Base;
typedef SupportsWeakPtr<GeckoViewSupport> SupportsWeakPtr;
MOZ_DECLARE_WEAKREFERENCE_TYPENAME(GeckoViewSupport);
template<typename Functor>
static void OnNativeCall(Functor&& aCall)
{
NS_DispatchToMainThread(new WindowEvent<Functor>(mozilla::Move(aCall)));
}
GeckoViewSupport(nsWindow* aWindow,
const GeckoSession::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,
GeckoSession::Window::Param aWindow,
jni::Object::Param aCompositor,
jni::Object::Param aDispatcher,
jni::Object::Param aSettings,
jni::String::Param aChromeURI,
int32_t aScreenId,
bool aPrivateMode);
// Close and destroy the nsWindow.
void Close();
// Transfer this nsWindow to new GeckoSession objects.
void Transfer(const GeckoSession::Window::LocalRef& inst,
jni::Object::Param aCompositor,
jni::Object::Param aDispatcher,
jni::Object::Param aSettings);
void AttachEditable(const GeckoSession::Window::LocalRef& inst,
jni::Object::Param aEditableParent,
jni::Object::Param aEditableChild);
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;
static bool sNegateWheelScroll;
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);
static bool sInited;
if (!sInited) {
Preferences::AddBoolVarCache(&sNegateWheelScroll,
"ui.scrolling.negate_wheel_scroll");
sInited = true;
}
}
~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->SetAttached(false);
};
NativePanZoomController::GlobalRef npzc = mNPZC;
RefPtr<nsThread> uiThread = GetAndroidUiThread();
if (!uiThread) {
return;
}
uiThread->Dispatch(NewRunnableFunction(
"OnDetachRunnable",
static_cast<void(*)(const NPZCRef&)>(callDestroy),
mozilla::Move(npzc)), nsIThread::DISPATCH_NORMAL);
}
const NativePanZoomController::Ref& GetJavaNPZC() const
{
return mNPZC;
}
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);
if (sNegateWheelScroll) {
aHScroll = -aHScroll;
aVScroll = -aVScroll;
}
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 java::sdk::MotionEvent::ACTION_DOWN:
mouseType = MouseInput::MOUSE_DOWN;
buttonType = GetButtonType(buttons ^ mPreviousButtons);
mPreviousButtons = buttons;
break;
case java::sdk::MotionEvent::ACTION_UP:
mouseType = MouseInput::MOUSE_UP;
buttonType = GetButtonType(buttons ^ mPreviousButtons);
mPreviousButtons = buttons;
break;
case java::sdk::MotionEvent::ACTION_MOVE:
mouseType = MouseInput::MOUSE_MOVE;
break;
case java::sdk::MotionEvent::ACTION_HOVER_MOVE:
mouseType = MouseInput::MOUSE_MOVE;
break;
case java::sdk::MotionEvent::ACTION_HOVER_ENTER:
mouseType = MouseInput::MOUSE_WIDGET_ENTER;
break;
case java::sdk::MotionEvent::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;
}
};
template<> const char
nsWindow::NativePtr<nsWindow::NPZCSupport>::sName[] = "NPZCSupport";
bool nsWindow::NPZCSupport::sNegateWheelScroll;
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 LayerSession::Compositor::Natives<LayerViewSupport>
{
using LockedWindowPtr = WindowPtr<LayerViewSupport>::Locked;
WindowPtr<LayerViewSupport> mWindow;
LayerSession::Compositor::GlobalRef mCompositor;
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 LayerSession::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 LayerSession::Compositor::LocalRef& instance)
{
return GetNative(instance);
}
LayerViewSupport(NativePtr<LayerViewSupport>* aPtr, nsWindow* aWindow,
const LayerSession::Compositor::LocalRef& aInstance)
: mWindow(aPtr, aWindow)
, mCompositor(aInstance)
, mCompositorPaused(true)
{
MOZ_ASSERT(mWindow);
}
~LayerViewSupport()
{}
using Base::AttachNative;
using Base::DisposeNative;
void OnDetach()
{
if (RefPtr<nsThread> uiThread = GetAndroidUiThread()) {
LayerSession::Compositor::GlobalRef compositor(mCompositor);
uiThread->Dispatch(NS_NewRunnableFunction(
"LayerViewSupport::OnDetach",
[compositor] {
compositor->OnCompositorDetached();
}));
}
}
const LayerSession::Compositor::Ref& GetJavaCompositor() const
{
return mCompositor;
}
bool CompositorPaused() const
{
return mCompositorPaused;
}
jni::Object::Param GetSurface()
{
return mSurface;
}
private:
already_AddRefed<UiCompositorControllerChild> GetUiCompositorControllerChild()
{
RefPtr<UiCompositorControllerChild> child;
if (LockedWindowPtr window{mWindow}) {
child = window->GetUiCompositorControllerChild();
}
return child.forget();
}
/**
* Compositor methods
*/
public:
void AttachNPZC(jni::Object::Param aNPZC)
{
MOZ_ASSERT(NS_IsMainThread());
if (!mWindow) {
return; // Already shut down.
}
MOZ_ASSERT(aNPZC);
MOZ_ASSERT(!mWindow->mNPZCSupport);
auto npzc = NativePanZoomController::LocalRef(
jni::GetGeckoThreadEnv(),
NativePanZoomController::Ref::From(aNPZC));
mWindow->mNPZCSupport.Attach(npzc, mWindow, npzc);
DispatchToUiThread("LayerViewSupport::AttachNPZC",
[npzc = NativePanZoomController::GlobalRef(npzc)] {
npzc->SetAttached(true);
});
}
void OnBoundsChanged(int32_t aLeft, int32_t aTop,
int32_t aWidth, int32_t aHeight)
{
MOZ_ASSERT(NS_IsMainThread());
if (!mWindow) {
return; // Already shut down.
}
mWindow->Resize(aLeft, aTop, aWidth, aHeight, /* 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;
}
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 LayerSession::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
{
LayerSession::Compositor::GlobalRef mCompositor;
public:
OnResumedEvent(LayerSession::Compositor::GlobalRef&& aCompositor)
: mCompositor(mozilla::Move(aCompositor))
{}
void Run() override
{
MOZ_ASSERT(NS_IsMainThread());
JNIEnv* const env = jni::GetGeckoThreadEnv();
LayerViewSupport* const lvs = GetNative(
LayerSession::Compositor::LocalRef(env, mCompositor));
if (!lvs || !lvs->mWindow) {
env->ExceptionClear();
return; // Already shut down.
}
// When we get here, the compositor has already been told to
// resume. 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 (!lvs->mCompositorPaused) {
lvs->mWindow->RedrawAll();
}
}
};
// 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()) {
child->InvalidateAndRender();
return;
}
if (RefPtr<nsThread> uiThread = GetAndroidUiThread()) {
uiThread->Dispatch(NewRunnableMethod<>(
"LayerViewSupport::InvalidateAndRender",
child, &UiCompositorControllerChild::InvalidateAndRender),
nsIThread::DISPATCH_NORMAL);
}
}
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()) {
child->SetPinned(aPinned, aReason);
return;
}
if (RefPtr<nsThread> uiThread = GetAndroidUiThread()) {
uiThread->Dispatch(NewRunnableMethod<bool, int32_t>(
"LayerViewSupport::SetPinned",
child, &UiCompositorControllerChild::SetPinned,
aPinned, aReason), nsIThread::DISPATCH_NORMAL);
}
}
void SendToolbarAnimatorMessage(int32_t aMessage)
{
RefPtr<UiCompositorControllerChild> child = GetUiCompositorControllerChild();
if (!child) {
return;
}
if (AndroidBridge::IsJavaUiThread()) {
child->ToolbarAnimatorMessageFromUI(aMessage);
return;
}
if (RefPtr<nsThread> uiThread = GetAndroidUiThread()) {
uiThread->Dispatch(NewRunnableMethod<int32_t>(
"LayerViewSupport::ToolbarAnimatorMessageFromUI",
child, &UiCompositorControllerChild::ToolbarAnimatorMessageFromUI,
aMessage), nsIThread::DISPATCH_NORMAL);
}
}
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);
}
}
}
};
template<> const char
nsWindow::NativePtr<nsWindow::LayerViewSupport>::sName[] = "LayerViewSupport";
#ifdef MOZ_NATIVE_DEVICES
/* 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 aSession)
{
const auto& session = LayerSession::Ref::From(aSession);
LayerSession::Compositor::LocalRef compositor = session->GetCompositor();
if (!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 aSession)
{
LayerViewSupport* const lvs = GetLayerViewSupport(aSession);
if (lvs) {
lvs->SyncInvalidateAndScheduleComposite();
}
}
static void AddPresentationSurface(const jni::Class::LocalRef& aCls,
jni::Object::Param aSession,
jni::Object::Param aSurface)
{
RemovePresentationSurface();
LayerViewSupport* const lvs = GetLayerViewSupport(aSession);
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;
#endif
nsWindow::GeckoViewSupport::~GeckoViewSupport()
{
// Disassociate our GeckoEditable instance with our native object.
if (window.mEditableSupport) {
window.mEditableSupport.Detach();
window.mEditableParent = nullptr;
}
if (window.mNPZCSupport) {
window.mNPZCSupport.Detach();
}
if (window.mLayerViewSupport) {
window.mLayerViewSupport.Detach();
}
}
/* static */ void
nsWindow::GeckoViewSupport::Open(const jni::Class::LocalRef& aCls,
GeckoSession::Window::Param aWindow,
jni::Object::Param aCompositor,
jni::Object::Param aDispatcher,
jni::Object::Param aSettings,
jni::String::Param aChromeURI,
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");
}
}
// Prepare an nsIAndroidView to pass as argument to the window.
RefPtr<AndroidView> androidView = new AndroidView();
androidView->mEventDispatcher->Attach(
java::EventDispatcher::Ref::From(aDispatcher), nullptr);
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.
GeckoSession::Window::LocalRef sessionWindow(aCls.Env(), aWindow);
window->mGeckoViewSupport =
mozilla::MakeUnique<GeckoViewSupport>(window, sessionWindow);
window->mGeckoViewSupport->mDOMWindow = pdomWindow;
window->mAndroidView = androidView;
// Attach other session support objects.
window->mGeckoViewSupport->Transfer(
sessionWindow, aCompositor, aDispatcher, aSettings);
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::Transfer(const GeckoSession::Window::LocalRef& inst,
jni::Object::Param aCompositor,
jni::Object::Param aDispatcher,
jni::Object::Param aSettings)
{
if (window.mNPZCSupport) {
MOZ_ASSERT(window.mLayerViewSupport);
window.mNPZCSupport.Detach();
}
if (window.mLayerViewSupport) {
window.mLayerViewSupport.Detach();
}
auto compositor = LayerSession::Compositor::LocalRef(
inst.Env(), LayerSession::Compositor::Ref::From(aCompositor));
window.mLayerViewSupport.Attach(compositor, &window, compositor);
MOZ_ASSERT(window.mAndroidView);
window.mAndroidView->mEventDispatcher->Attach(
java::EventDispatcher::Ref::From(aDispatcher), mDOMWindow);
window.mAndroidView->mSettings = java::GeckoBundle::Ref::From(aSettings);
inst->OnTransfer(aDispatcher);
DispatchToUiThread(
"GeckoViewSupport::Transfer",
[compositor = LayerSession::Compositor::GlobalRef(compositor)] {
compositor->OnCompositorAttached();
});
// Set the first-paint flag so that we refresh viewports, etc.
if (RefPtr<CompositorBridgeChild> bridge = window.GetCompositorBridgeChild()) {
bridge->SendForceIsFirstPaint();
}
}
void
nsWindow::GeckoViewSupport::AttachEditable(const GeckoSession::Window::LocalRef& inst,
jni::Object::Param aEditableParent,
jni::Object::Param aEditableChild)
{
java::GeckoEditableChild::LocalRef editableChild(inst.Env());
editableChild = java::GeckoEditableChild::Ref::From(aEditableChild);
if (window.mEditableSupport) {
window.mEditableSupport.Detach();
}
window.mEditableSupport.Attach(editableChild, &window, editableChild);
window.mEditableParent = aEditableParent;
}
void
nsWindow::InitNatives()
{
nsWindow::GeckoViewSupport::Base::Init();
nsWindow::LayerViewSupport::Init();
nsWindow::NPZCSupport::Init();
#ifdef MOZ_NATIVE_DEVICES
if (jni::IsFennec()) {
nsWindow::PMPMSupport::Init();
}
#endif
GeckoEditableSupport::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);
for (nsWindow *w = this; !!w; w = w->mParent) {
p.x += w->mBounds.x;
p.y += w->mBounds.y;
if (w->IsTopLevel()) {
break;
}
}
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<LayerViewSupport>::Locked lvs{mLayerViewSupport}) {
const auto& compositor = lvs->GetJavaCompositor();
if (AndroidBridge::IsJavaUiThread()) {
compositor->UpdateOverscrollVelocity(aX, aY);
return;
}
DispatchToUiThread(
"nsWindow::UpdateOverscrollVelocity",
[compositor = LayerSession::Compositor::GlobalRef(compositor),
aX, aY] {
compositor->UpdateOverscrollVelocity(aX, aY);
});
}
}
void
nsWindow::UpdateOverscrollOffset(const float aX, const float aY)
{
if (NativePtr<LayerViewSupport>::Locked lvs{mLayerViewSupport}) {
const auto& compositor = lvs->GetJavaCompositor();
if (AndroidBridge::IsJavaUiThread()) {
compositor->UpdateOverscrollOffset(aX, aY);
return;
}
DispatchToUiThread(
"nsWindow::UpdateOverscrollOffset",
[compositor = LayerSession::Compositor::GlobalRef(compositor),
aX, aY] {
compositor->UpdateOverscrollOffset(aX, aY);
});
}
}
void
nsWindow::SetSelectionDragState(bool aState)
{
MOZ_ASSERT(NS_IsMainThread());
if (!mLayerViewSupport) {
return;
}
const auto& compositor = mLayerViewSupport->GetJavaCompositor();
DispatchToUiThread(
"nsWindow::SetSelectionDragState",
[compositor = LayerSession::Compositor::GlobalRef(compositor),
aState] {
compositor->OnSelectionCaretDrag(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;
#ifdef MOZ_NATIVE_DEVICES
case NS_PRESENTATION_WINDOW:
return PMPMSupport::sWindow;
case NS_PRESENTATION_SURFACE:
return PMPMSupport::sSurface;
#endif
}
return nullptr;
}
void
nsWindow::SetNativeData(uint32_t aDataType, uintptr_t aVal)
{
switch (aDataType) {
#ifdef MOZ_NATIVE_DEVICES
case NS_PRESENTATION_SURFACE:
PMPMSupport::sSurface = reinterpret_cast<EGLSurface>(aVal);
break;
#endif
}
}
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->OnReady();
}
void
nsWindow::UserActivity()
{
if (!mIdleService) {
mIdleService = do_GetService("@mozilla.org/widget/idleservice;1");
}
if (mIdleService) {
mIdleService->ResetIdleTimeOut(0);
}
if (FindTopLevel() != nsWindow::TopWindow()) {
BringToFront();
}
}
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(mNPZCSupport);
const auto& npzc = mNPZCSupport->GetJavaNPZC();
const auto& bounds = FindTopLevel()->mBounds;
aPoint.x -= bounds.x;
aPoint.y -= bounds.y;
DispatchToUiThread(
"nsWindow::SynthesizeNativeTouchPoint",
[npzc = NativePanZoomController::GlobalRef(npzc),
aPointerId, eventType, aPoint,
aPointerPressure, aPointerOrientation] {
npzc->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(mNPZCSupport);
const auto& npzc = mNPZCSupport->GetJavaNPZC();
const auto& bounds = FindTopLevel()->mBounds;
aPoint.x -= bounds.x;
aPoint.y -= bounds.y;
DispatchToUiThread(
"nsWindow::SynthesizeNativeMouseEvent",
[npzc = NativePanZoomController::GlobalRef(npzc),
aNativeMessage, aPoint] {
npzc->SynthesizeNativeMouseEvent(aNativeMessage,
aPoint.x, aPoint.y);
});
return NS_OK;
}
nsresult
nsWindow::SynthesizeNativeMouseMove(LayoutDeviceIntPoint aPoint,
nsIObserver* aObserver)
{
mozilla::widget::AutoObserverNotifier notifier(aObserver, "mouseevent");
MOZ_ASSERT(mNPZCSupport);
const auto& npzc = mNPZCSupport->GetJavaNPZC();
const auto& bounds = FindTopLevel()->mBounds;
aPoint.x -= bounds.x;
aPoint.y -= bounds.y;
DispatchToUiThread(
"nsWindow::SynthesizeNativeMouseMove",
[npzc = NativePanZoomController::GlobalRef(npzc), aPoint] {
npzc->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);
}
void
nsWindow::SetContentDocumentDisplayed(bool aDisplayed)
{
mContentDocumentDisplayed = aDisplayed;
}
bool
nsWindow::IsContentDocumentDisplayed()
{
return mContentDocumentDisplayed;
}
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}) {
const auto& compositor = lvs->GetJavaCompositor();
mContentDocumentDisplayed = true;
compositor->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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