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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef widget_windows_WinCompositorWidget_h
#define widget_windows_WinCompositorWidget_h
#include "CompositorWidget.h"
#include "mozilla/Atomics.h"
#include "mozilla/gfx/CriticalSection.h"
#include "mozilla/gfx/Point.h"
#include "mozilla/layers/LayersTypes.h"
#include "mozilla/Mutex.h"
#include "mozilla/widget/WinCompositorWindowThread.h"
#include "FxROutputHandler.h"
#include "nsIWidget.h"
class nsWindow;
namespace mozilla::widget {
class PlatformCompositorWidgetDelegate : public CompositorWidgetDelegate {
public:
// Callbacks for nsWindow.
virtual void EnterPresentLock() = 0;
virtual void LeavePresentLock() = 0;
virtual void OnDestroyWindow() = 0;
virtual bool OnWindowResize(const LayoutDeviceIntSize& aSize) = 0;
// Transparency handling.
virtual void UpdateTransparency(TransparencyMode aMode) = 0;
// Deliver visibility info
virtual void NotifyVisibilityUpdated(bool aIsFullyOccluded) = 0;
// CompositorWidgetDelegate Overrides
PlatformCompositorWidgetDelegate* AsPlatformSpecificDelegate() override {
return this;
}
};
class WinCompositorWidgetInitData;
// This is the Windows-specific implementation of CompositorWidget. For
// the most part it only requires an HWND, however it maintains extra state
// for transparent windows, as well as for synchronizing WM_SETTEXT messages
// with the compositor.
class WinCompositorWidget : public CompositorWidget {
public:
WinCompositorWidget(const WinCompositorWidgetInitData& aInitData,
const layers::CompositorOptions& aOptions);
~WinCompositorWidget() override;
// CompositorWidget Overrides
uintptr_t GetWidgetKey() override;
WinCompositorWidget* AsWindows() override { return this; }
HWND GetHwnd() const {
return mCompositorWnds.mCompositorWnd ? mCompositorWnds.mCompositorWnd
: mWnd;
}
HWND GetCompositorHwnd() const { return mCompositorWnds.mCompositorWnd; }
void EnsureCompositorWindow();
void DestroyCompositorWindow();
void UpdateCompositorWndSizeIfNecessary();
void RequestFxrOutput();
bool HasFxrOutputHandler() const { return !!mFxrHandler; }
FxROutputHandler* GetFxrOutputHandler() const { return mFxrHandler.get(); }
virtual bool GetWindowIsFullyOccluded() const = 0;
virtual void UpdateCompositorWnd(const HWND aCompositorWnd,
const HWND aParentWnd) = 0;
virtual void SetRootLayerTreeID(const layers::LayersId& aRootLayerTreeId) = 0;
bool TransparencyModeIs(TransparencyMode aMode) const {
return TransparencyMode(uint32_t(mTransparencyMode)) == aMode;
}
protected:
void SetTransparencyMode(TransparencyMode aMode) {
mTransparencyMode = uint32_t(aMode);
}
bool mSetParentCompleted = false;
private:
uintptr_t mWidgetKey;
HWND mWnd;
mozilla::Atomic<uint32_t, MemoryOrdering::Relaxed> mTransparencyMode;
WinCompositorWnds mCompositorWnds;
LayoutDeviceIntSize mLastCompositorWndSize;
UniquePtr<FxROutputHandler> mFxrHandler;
};
} // namespace mozilla::widget
#endif // widget_windows_WinCompositorWidget_h
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