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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 mozilla_PresShellWidgetListener_h__
#define mozilla_PresShellWidgetListener_h__
#include "Units.h"
#include "mozilla/Attributes.h"
#include "mozilla/CallState.h"
#include "nsCOMPtr.h"
#include "nsIWidgetListener.h"
class nsIWidget;
namespace mozilla {
class PresShell;
namespace dom {
class BrowserParent;
} // namespace dom
namespace widget {
struct InitData;
enum class TransparencyMode : uint8_t;
enum class WindowType : uint8_t;
} // namespace widget
class PresShellWidgetListener final : public nsIWidgetListener {
public:
// Stops listening to mWidget and clears it.
void DetachWidget();
/**
* Attach/detach a top level widget. Attaching allows the shell to begin
* receiving gecko events. The underlying base window associated with the
* widget will continues to receive events it expects.
*
* An attached widget will not be destroyed when we are destroyed,
* allowing the recycling of a single top level widget over multiple pres
* shells.
*
* @param aWidget The widget to attach to / detach from.
*/
void AttachToTopLevelWidget(nsIWidget* aWidget);
void DetachFromTopLevelWidget();
static uint32_t GetLastUserEventTime();
nsIWidget* GetWidget() const { return mWindow; }
bool HasWidget() const { return !!mWindow; }
// nsIWidgetListener
mozilla::PresShell* GetPresShell() override;
PresShellWidgetListener* GetAsPresShellWidgetListener() override {
return this;
}
bool IsPaintSuppressed() const override {
return IsPrimaryFramePaintSuppressed();
}
bool WindowResized(nsIWidget* aWidget, int32_t aWidth,
int32_t aHeight) override;
void DynamicToolbarMaxHeightChanged(mozilla::ScreenIntCoord aHeight) override;
void DynamicToolbarOffsetChanged(mozilla::ScreenIntCoord aOffset) override;
void KeyboardHeightChanged(mozilla::ScreenIntCoord aHeight) override;
void AndroidPipModeChanged(bool) override;
MOZ_CAN_RUN_SCRIPT_BOUNDARY
void PaintWindow(nsIWidget* aWidget) override;
void DidCompositeWindow(mozilla::layers::TransactionId aTransactionId,
const mozilla::TimeStamp& aCompositeStart,
const mozilla::TimeStamp& aCompositeEnd) override;
MOZ_CAN_RUN_SCRIPT_BOUNDARY
nsEventStatus HandleEvent(mozilla::WidgetGUIEvent*) override;
void SafeAreaInsetsChanged(const mozilla::LayoutDeviceIntMargin&) override;
explicit PresShellWidgetListener(mozilla::PresShell*);
virtual ~PresShellWidgetListener();
bool IsPrimaryFramePaintSuppressed() const;
private:
void CallOnAllRemoteChildren(
const std::function<mozilla::CallState(mozilla::dom::BrowserParent*)>&
aCallback);
mozilla::PresShell* mPresShell = nullptr;
nsCOMPtr<nsIWidget> mWindow;
nsCOMPtr<nsIWidget> mPreviousWindow;
};
} // namespace mozilla
#endif
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