nsWindow.h - mozsearch

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/* -*- Mode: C++; tab-width: 4; 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 NSWINDOW_H_

#define NSWINDOW_H_

#include <objc/objc.h>

#include <CoreFoundation/CoreFoundation.h>

#include "mozilla/widget/IOSView.h"

#include "nsBaseWidget.h"

#include "gfxPoint.h"

#include "nsTArray.h"

#ifdef __OBJC__

@class ChildView;

#else

typedef struct objc_object ChildView;

#endif

namespace mozilla::layers {

class NativeLayerRootCA;

namespace mozilla::widget {

class EventDispatcher;

class TextInputHandler;

}  // namespace mozilla::widget

#define NS_WINDOW_IID \

  {0x5e6fd559, 0xb3f9, 0x40c9, {0x92, 0xd1, 0xef, 0x80, 0xb4, 0xf9, 0x69, 0xe9}}

class nsWindow final : public nsBaseWidget {

 public:

  nsWindow();

  NS_INLINE_DECL_STATIC_IID(NS_WINDOW_IID)

  NS_DECL_ISUPPORTS_INHERITED

//

  // nsIWidget

//

  [[nodiscard]] nsresult Create(

      nsIWidget* aParent, const LayoutDeviceIntRect& aRect,

      mozilla::widget::InitData* aInitData = nullptr) override;

  void Destroy() override;

  void Show(bool aState) override;

  void Enable(bool aState) override {}

  bool IsEnabled() const override { return true; }

  bool IsVisible() const override { return mVisible; }

  void SetFocus(Raise, mozilla::dom::CallerType aCallerType) override;

  LayoutDeviceIntPoint WidgetToScreenOffset() override;

  void SetBackgroundColor(const nscolor& aColor) override;

  void* GetNativeData(uint32_t aDataType) override;

  void Move(double aX, double aY) override;

  nsSizeMode SizeMode() override { return mSizeMode; }

  void SetSizeMode(nsSizeMode aMode) override;

  void EnteredFullScreen(bool aFullScreen);

  void Resize(double aWidth, double aHeight, bool aRepaint) override;

  void Resize(double aX, double aY, double aWidth, double aHeight,

              bool aRepaint) override;

  LayoutDeviceIntRect GetScreenBounds() override;

  void ReportMoveEvent();

  void ReportSizeEvent();

  void ReportSizeModeEvent(nsSizeMode aMode);

  double BackingScaleFactor();

  void BackingScaleFactorChanged();

  float GetDPI() override {

    // XXX: terrible

    return 326.0f;

  double GetDefaultScaleInternal() override { return BackingScaleFactor(); }

  int32_t RoundsWidgetCoordinatesTo() override;

  nsresult SetTitle(const nsAString& aTitle) override { return NS_OK; }

  void Invalidate(const LayoutDeviceIntRect& aRect) override;

  nsresult DispatchEvent(mozilla::WidgetGUIEvent* aEvent,

                         nsEventStatus& aStatus) override;

  void WillPaintWindow();

  bool PaintWindow(LayoutDeviceIntRegion aRegion);

  bool HasModalDescendents() { return false; }

  // virtual nsresult

  // NotifyIME(const IMENotification& aIMENotification) override;

  void SetInputContext(const InputContext& aContext,

                       const InputContextAction& aAction) override;

  InputContext GetInputContext() override;

  TextEventDispatcherListener* GetNativeTextEventDispatcherListener() override;

  mozilla::widget::TextInputHandler* GetTextInputHandler() const {

    return mTextInputHandler;

  bool IsVirtualKeyboardDisabled() const;

/*

  virtual bool ExecuteNativeKeyBinding(

                      NativeKeyBindingsType aType,

                      const mozilla::WidgetKeyboardEvent& aEvent,

                      DoCommandCallback aCallback,

                      void* aCallbackData) override;

*/

  RefPtr<mozilla::layers::NativeLayerRoot> GetNativeLayerRoot() override;

  void HandleMainThreadCATransaction();

  // Called when the main thread enters a phase during which visual changes

  // are imminent and any layer updates on the compositor thread would interfere

  // with visual atomicity.

  // "Async" CATransactions are CATransactions which happen on a thread that's

  // not the main thread.

  void SuspendAsyncCATransactions();

  // Called when we know that the current main thread paint will be completed

  // once the main thread goes back to the event loop.

  void MaybeScheduleUnsuspendAsyncCATransactions();

  // Called from the runnable dispatched by

  // MaybeScheduleUnsuspendAsyncCATransactions(). At this point we know that the

  // main thread is done handling the visual change (such as a window resize)

  // and we can start modifying CALayers from the compositor thread again.

  void UnsuspendAsyncCATransactions();

  mozilla::widget::EventDispatcher* GetEventDispatcher() const;

  static already_AddRefed<nsWindow> From(nsPIDOMWindowOuter* aDOMWindow);

  static already_AddRefed<nsWindow> From(nsIWidget* aWidget);

  void SetIOSView(already_AddRefed<mozilla::widget::IOSView>&& aView) {

    mIOSView = aView;

  mozilla::widget::IOSView* GetIOSView() const { return mIOSView; }

 protected:

  virtual ~nsWindow();

  void BringToFront();

  nsWindow* FindTopLevel();

  bool IsTopLevel();

  nsresult GetCurrentOffset(uint32_t& aOffset, uint32_t& aLength);

  nsresult DeleteRange(int aOffset, int aLen);

  void TearDownView();

  ChildView* mNativeView;

  bool mVisible;

  nsSizeMode mSizeMode;

  nsTArray<nsWindow*> mChildren;

  nsWindow* mParent;

  mozilla::widget::InputContext mInputContext;

  RefPtr<mozilla::widget::TextInputHandler> mTextInputHandler;

  RefPtr<mozilla::widget::IOSView> mIOSView;

  RefPtr<mozilla::layers::NativeLayerRootCA> mNativeLayerRoot;

  RefPtr<mozilla::CancelableRunnable> mUnsuspendAsyncCATransactionsRunnable;

  void OnSizeChanged(const mozilla::gfx::IntSize& aSize);

  static void DumpWindows();

  static void DumpWindows(const nsTArray<nsWindow*>& wins, int indent = 0);

  static void LogWindow(nsWindow* win, int index, int indent);

};

#endif /* NSWINDOW_H_ */