#include <flutter_windows_view.h>

Inheritance diagram for flutter::FlutterWindowsView:

Public Member Functions
	FlutterWindowsView (FlutterViewId view_id, FlutterWindowsEngine engine, std::unique_ptr< WindowBindingHandler > window_binding, bool is_sized_to_content, const BoxConstraints &box_constraints, FlutterWindowsViewSizingDelegate sizing_delegate=nullptr, std::shared_ptr< WindowsProcTable > windows_proc_table=nullptr)

virtual	~FlutterWindowsView ()

FlutterViewId	view_id () const

bool	IsImplicitView () const

void	CreateRenderSurface ()

egl::WindowSurface *	surface () const

virtual HWND	GetWindowHandle () const

FlutterWindowsEngine *	GetEngine () const

void	ForceRedraw ()

virtual bool	ClearSoftwareBitmap ()

virtual bool	PresentSoftwareBitmap (const void *allocation, size_t row_bytes, size_t height)

FlutterWindowMetricsEvent	CreateWindowMetricsEvent () const

void	SendInitialBounds ()

virtual void	AnnounceAlert (const std::wstring &text)

void	OnHighContrastChanged () override

bool	OnEmptyFrameGenerated ()

bool	OnFrameGenerated (size_t width, size_t height)

virtual void	OnFramePresented ()

void	SetFirstFrameCallback (fml::closure callback)

bool	OnWindowSizeChanged (size_t width, size_t height) override

void	OnWindowRepaint () override

void	OnPointerMove (double x, double y, FlutterPointerDeviceKind device_kind, int32_t device_id, uint32_t rotation, uint32_t pressure, int modifiers_state) override

void	OnPointerDown (double x, double y, FlutterPointerDeviceKind device_kind, int32_t device_id, FlutterPointerMouseButtons button, uint32_t rotation, uint32_t pressure) override

void	OnPointerUp (double x, double y, FlutterPointerDeviceKind device_kind, int32_t device_id, FlutterPointerMouseButtons button) override

void	OnPointerLeave (double x, double y, FlutterPointerDeviceKind device_kind, int32_t device_id=0) override

virtual void	OnPointerPanZoomStart (int32_t device_id) override

virtual void	OnPointerPanZoomUpdate (int32_t device_id, double pan_x, double pan_y, double scale, double rotation) override

virtual void	OnPointerPanZoomEnd (int32_t device_id) override

void	OnText (const std::u16string &) override

void	OnKey (int key, int scancode, int action, char32_t character, bool extended, bool was_down, KeyEventCallback callback) override

void	OnFocus (FlutterViewFocusState focus_state, FlutterViewFocusDirection direction) override

void	OnComposeBegin () override

void	OnComposeCommit () override

void	OnComposeEnd () override

void	OnComposeChange (const std::u16string &text, int cursor_pos) override

void	OnScroll (double x, double y, double delta_x, double delta_y, int scroll_offset_multiplier, FlutterPointerDeviceKind device_kind, int32_t device_id) override

void	OnScrollInertiaCancel (int32_t device_id) override

virtual void	OnUpdateSemanticsEnabled (bool enabled) override

virtual gfx::NativeViewAccessible	GetNativeViewAccessible () override

virtual void	OnCursorRectUpdated (const Rect &rect)

virtual void	OnResetImeComposing ()

void	OnDwmCompositionChanged ()

ui::AXPlatformNodeWin *	AlertNode () const

virtual ui::AXFragmentRootDelegateWin *	GetAxFragmentRootDelegate () override

virtual void	UpdateSemanticsEnabled (bool enabled)

std::weak_ptr< AccessibilityBridgeWindows >	accessibility_bridge ()

void	OnWindowStateEvent (HWND hwnd, WindowStateEvent event) override

virtual bool	Focus ()

Protected Member Functions
virtual void	NotifyWinEventWrapper (ui::AXPlatformNodeWin *node, ax::mojom::Event event)

virtual std::shared_ptr< AccessibilityBridgeWindows >	CreateAccessibilityBridge ()

Friends
class	ViewModifier

Additional Inherited Members
Public Types inherited from flutter::WindowBindingHandlerDelegate
using	KeyEventCallback = std::function< void(bool)>

Detailed Description

Definition at line 47 of file flutter_windows_view.h.

Constructor & Destructor Documentation

◆ FlutterWindowsView()

flutter::FlutterWindowsView::FlutterWindowsView	(	FlutterViewId	view_id,
		FlutterWindowsEngine *	engine,
		std::unique_ptr< WindowBindingHandler >	window_binding,
		bool	is_sized_to_content,
		const BoxConstraints &	box_constraints,
		FlutterWindowsViewSizingDelegate *	sizing_delegate = `nullptr`,
		std::shared_ptr< WindowsProcTable >	windows_proc_table = `nullptr`
	)

Definition at line 110 of file flutter_windows_view.cc.

    : view_id_(view_id),
      engine_(engine),
      is_sized_to_content_(is_sized_to_content),
      box_constraints_(box_constraints),
      sizing_delegate_(sizing_delegate),
      windows_proc_table_(std::move(windows_proc_table)) {
  if (windows_proc_table_ == nullptr) {
    windows_proc_table_ = std::make_shared<WindowsProcTable>();
  }
 
  // Take the binding handler, and give it a pointer back to self.
  binding_handler_ = std::move(window_binding);
  binding_handler_->SetView(this);
}

◆ ~FlutterWindowsView()

flutter::FlutterWindowsView::~FlutterWindowsView ( )

virtual

Definition at line 133 of file flutter_windows_view.cc.

                                        {
  // The view owns the child window.
  // Notify the engine the view's child window will no longer be visible.
  engine_->OnWindowStateEvent(GetWindowHandle(), WindowStateEvent::kHide);
 
  if (surface_) {
    DestroyWindowSurface(*engine_, std::move(surface_));
  }
}

References GetWindowHandle(), flutter::kHide, and flutter::FlutterWindowsEngine::OnWindowStateEvent().

Member Function Documentation

◆ accessibility_bridge()

std::weak_ptr< AccessibilityBridgeWindows > flutter::FlutterWindowsView::accessibility_bridge ( )

inline

Definition at line 265 of file flutter_windows_view.h.

                                                                 {
    return accessibility_bridge_;
  }

◆ AlertNode()

ui::AXPlatformNodeWin * flutter::FlutterWindowsView::AlertNode ( ) const

Definition at line 893 of file flutter_windows_view.cc.

                                                         {
  return binding_handler_->GetAlert();
}

◆ AnnounceAlert()

void flutter::FlutterWindowsView::AnnounceAlert ( const std::wstring & text )

virtual

Definition at line 872 of file flutter_windows_view.cc.

                                                             {
  auto alert_delegate = binding_handler_->GetAlertDelegate();
  if (!alert_delegate) {
    return;
  }
  alert_delegate->SetText(fml::WideStringToUtf16(text));
  ui::AXPlatformNodeWin* alert_node = binding_handler_->GetAlert();
  NotifyWinEventWrapper(alert_node, ax::mojom::Event::kAlert);
}

References ax::mojom::kAlert, NotifyWinEventWrapper(), text, and fml::WideStringToUtf16().

◆ ClearSoftwareBitmap()

bool flutter::FlutterWindowsView::ClearSoftwareBitmap ( )

virtual

Definition at line 778 of file flutter_windows_view.cc.

                                             {
  return binding_handler_->OnBitmapSurfaceCleared();
}

◆ CreateAccessibilityBridge()

std::shared_ptr< AccessibilityBridgeWindows > flutter::FlutterWindowsView::CreateAccessibilityBridge ( )

protectedvirtual

Definition at line 898 of file flutter_windows_view.cc.

                                              {
  return std::make_shared<AccessibilityBridgeWindows>(this);
}

Referenced by UpdateSemanticsEnabled().

◆ CreateRenderSurface()

void flutter::FlutterWindowsView::CreateRenderSurface ( )

Definition at line 803 of file flutter_windows_view.cc.

                                             {
  FML_DCHECK(surface_ == nullptr);
 
  if (engine_->egl_manager()) {
    PhysicalWindowBounds bounds = binding_handler_->GetPhysicalWindowBounds();
    surface_ = engine_->egl_manager()->CreateWindowSurface(
        GetWindowHandle(), bounds.width, bounds.height);
 
    UpdateVsync(*engine_, surface_.get(), NeedsVsync());
 
    resize_target_width_ = bounds.width;
    resize_target_height_ = bounds.height;
  }
}

References flutter::egl::Manager::CreateWindowSurface(), flutter::FlutterWindowsEngine::egl_manager(), FML_DCHECK, GetWindowHandle(), flutter::PhysicalWindowBounds::height, and flutter::PhysicalWindowBounds::width.

◆ CreateWindowMetricsEvent()

FlutterWindowMetricsEvent flutter::FlutterWindowsView::CreateWindowMetricsEvent ( ) const

Definition at line 428 of file flutter_windows_view.cc.

                                                                             {
  PhysicalWindowBounds bounds = binding_handler_->GetPhysicalWindowBounds();
  double pixel_ratio = binding_handler_->GetDpiScale();
  FlutterEngineDisplayId display_id = binding_handler_->GetDisplayId();
 
  FlutterWindowMetricsEvent event = {};
  event.struct_size = sizeof(event);
  event.width = bounds.width;
  event.height = bounds.height;
  auto constraints = GetConstraints();
  event.has_constraints = true;
  event.min_width_constraint =
      static_cast<size_t>(constraints.smallest().width());
  event.min_height_constraint =
      static_cast<size_t>(constraints.smallest().height());
  event.max_width_constraint =
      static_cast<size_t>(constraints.biggest().width());
  event.max_height_constraint =
      static_cast<size_t>(constraints.biggest().height());
  event.pixel_ratio = pixel_ratio;
  event.display_id = display_id;
  event.view_id = view_id_;
 
  return event;
}

References flutter::PhysicalWindowBounds::height, FlutterWindowMetricsEvent::struct_size, and flutter::PhysicalWindowBounds::width.

Referenced by SendInitialBounds().

◆ Focus()

bool flutter::FlutterWindowsView::Focus ( )

virtual

Definition at line 922 of file flutter_windows_view.cc.

                               {
  return binding_handler_->Focus();
}

◆ ForceRedraw()

void flutter::FlutterWindowsView::ForceRedraw ( )

Definition at line 200 of file flutter_windows_view.cc.

                                     {
  if (resize_status_ == ResizeState::kDone) {
    // Request new frame.
    engine_->ScheduleFrame();
  }
}

References flutter::FlutterWindowsEngine::ScheduleFrame().

Referenced by OnWindowRepaint().

◆ GetAxFragmentRootDelegate()

ui::AXFragmentRootDelegateWin * flutter::FlutterWindowsView::GetAxFragmentRootDelegate ( )

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 889 of file flutter_windows_view.cc.

                                                                           {
  return accessibility_bridge_.get();
}

◆ GetEngine()

FlutterWindowsEngine * flutter::FlutterWindowsView::GetEngine ( ) const

Definition at line 868 of file flutter_windows_view.cc.

                                                          {
  return engine_;
}

Referenced by flutter::AccessibilityBridgeWindows::DispatchAccessibilityAction(), FlutterDesktopViewGetGraphicsAdapter(), and flutter::FlutterPlatformNodeDelegateWindows::IsIAccessibleExEnabled().

◆ GetNativeViewAccessible()

gfx::NativeViewAccessible flutter::FlutterWindowsView::GetNativeViewAccessible ( )

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 387 of file flutter_windows_view.cc.

                                                                    {
  if (!accessibility_bridge_) {
    return nullptr;
  }
 
  return accessibility_bridge_->GetChildOfAXFragmentRoot();
}

◆ GetWindowHandle()

HWND flutter::FlutterWindowsView::GetWindowHandle ( ) const

virtual

Definition at line 864 of file flutter_windows_view.cc.

                                               {
  return binding_handler_->GetWindowHandle();
}

Referenced by CreateRenderSurface(), FlutterDesktopViewGetHWND(), flutter::FlutterPlatformNodeDelegateWindows::GetBoundsRect(), flutter::FlutterPlatformNodeDelegateWindows::GetTargetForNativeAccessibilityEvent(), and ~FlutterWindowsView().

◆ IsImplicitView()

bool flutter::FlutterWindowsView::IsImplicitView ( ) const

Definition at line 799 of file flutter_windows_view.cc.

                                              {
  return view_id_ == kImplicitViewId;
}

References flutter::kImplicitViewId.

Referenced by SendInitialBounds().

◆ NotifyWinEventWrapper()

void flutter::FlutterWindowsView::NotifyWinEventWrapper	(	ui::AXPlatformNodeWin *	node,
		ax::mojom::Event	event
	)

protectedvirtual

Definition at line 882 of file flutter_windows_view.cc.

                                                                   {
  if (node) {
    node->NotifyAccessibilityEvent(event);
  }
}

Referenced by AnnounceAlert().

◆ OnComposeBegin()

void flutter::FlutterWindowsView::OnComposeBegin ( )

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 350 of file flutter_windows_view.cc.

                                        {
  SendComposeBegin();
}

◆ OnComposeChange()

void flutter::FlutterWindowsView::OnComposeChange	(	const std::u16string &	text,
		int	cursor_pos
	)

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 362 of file flutter_windows_view.cc.

                                                         {
  SendComposeChange(text, cursor_pos);
}

References text.

◆ OnComposeCommit()

void flutter::FlutterWindowsView::OnComposeCommit ( )

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 354 of file flutter_windows_view.cc.

                                         {
  SendComposeCommit();
}

◆ OnComposeEnd()

void flutter::FlutterWindowsView::OnComposeEnd ( )

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 358 of file flutter_windows_view.cc.

                                      {
  SendComposeEnd();
}

◆ OnCursorRectUpdated()

void flutter::FlutterWindowsView::OnCursorRectUpdated ( const Rect & rect )

virtual

Definition at line 395 of file flutter_windows_view.cc.

                                                             {
  binding_handler_->OnCursorRectUpdated(rect);
}

◆ OnDwmCompositionChanged()

void flutter::FlutterWindowsView::OnDwmCompositionChanged ( )

Definition at line 914 of file flutter_windows_view.cc.

                                                 {
  UpdateVsync(*engine_, surface_.get(), NeedsVsync());
}

◆ OnEmptyFrameGenerated()

bool flutter::FlutterWindowsView::OnEmptyFrameGenerated ( )

Definition at line 143 of file flutter_windows_view.cc.

                                               {
  // Called on the raster thread.
  std::unique_lock<std::mutex> lock(resize_mutex_);
 
  if (surface_ == nullptr || !surface_->IsValid()) {
    return false;
  }
 
  if (resize_status_ != ResizeState::kResizeStarted) {
    return true;
  }
 
  if (!ResizeRenderSurface(resize_target_height_, resize_target_width_)) {
    return false;
  }
 
  // Platform thread is blocked for the entire duration until the
  // resize_status_ is set to kDone by |OnFramePresented|.
  resize_status_ = ResizeState::kFrameGenerated;
  return true;
}

◆ OnFocus()

void flutter::FlutterWindowsView::OnFocus	(	FlutterViewFocusState	focus_state,
		FlutterViewFocusDirection	direction
	)

overridevirtual

Notifies the delegate that the backing window has received or lost focus.

Typically called by currently configured WindowBindingHandler.

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 345 of file flutter_windows_view.cc.

                                                                      {
  SendFocus(focus_state, direction);
}

◆ OnFrameGenerated()

bool flutter::FlutterWindowsView::OnFrameGenerated	(	size_t	width,
		size_t	height
	)

Definition at line 165 of file flutter_windows_view.cc.

                                                                     {
  // Called on the raster thread.
  std::unique_lock<std::mutex> lock(resize_mutex_);
 
  if (IsSizedToContent()) {
    if (!ResizeRenderSurface(width, height)) {
      return false;
    }
 
    sizing_delegate_->DidUpdateViewSize(width, height);
    return true;
  }
 
  if (surface_ == nullptr || !surface_->IsValid()) {
    return false;
  }
 
  if (resize_status_ != ResizeState::kResizeStarted) {
    return true;
  }
 
  if (resize_target_width_ != width || resize_target_height_ != height) {
    return false;
  }
 
  if (!ResizeRenderSurface(resize_target_width_, resize_target_height_)) {
    return false;
  }
 
  // Platform thread is blocked for the entire duration until the
  // resize_status_ is set to kDone by |OnFramePresented|.
  resize_status_ = ResizeState::kFrameGenerated;
  return true;
}

References flutter::FlutterWindowsViewSizingDelegate::DidUpdateViewSize(), height, and width.

◆ OnFramePresented()

void flutter::FlutterWindowsView::OnFramePresented ( )

virtual

Definition at line 743 of file flutter_windows_view.cc.

                                          {
  // Called on the engine's raster thread.
  FireFirstFrameCallbackIfSet();
 
  std::unique_lock<std::mutex> lock(resize_mutex_);
 
  switch (resize_status_) {
    case ResizeState::kResizeStarted:
      // The caller must first call |OnFrameGenerated| or
      // |OnEmptyFrameGenerated| before calling this method. This
      // indicates one of the following:
      //
      // 1. The caller did not call these methods.
      // 2. The caller ignored these methods' result.
      // 3. The platform thread started a resize after the caller called these
      //    methods. We might have presented a frame of the wrong size to the
      //    view.
      return;
    case ResizeState::kFrameGenerated: {
      // A frame was generated for a pending resize.
      resize_status_ = ResizeState::kDone;
      // Unblock the platform thread.
      engine_->task_runner()->PostTask([this] {});
 
      lock.unlock();
 
      // Blocking the raster thread until DWM flushes alleviates glitches where
      // previous size surface is stretched over current size view.
      windows_proc_table_->DwmFlush();
    }
    case ResizeState::kDone:
      return;
  }
}

References flutter::TaskRunner::PostTask(), and flutter::FlutterWindowsEngine::task_runner().

◆ OnHighContrastChanged()

void flutter::FlutterWindowsView::OnHighContrastChanged ( )

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 860 of file flutter_windows_view.cc.

                                               {
  engine_->UpdateHighContrastMode();
}

References flutter::FlutterWindowsEngine::UpdateHighContrastMode().

◆ OnKey()

void flutter::FlutterWindowsView::OnKey	(	int	key,
		int	scancode,
		int	action,
		char32_t	character,
		bool	extended,
		bool	was_down,
		KeyEventCallback	callback
	)

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 335 of file flutter_windows_view.cc.

                                                          {
  SendKey(key, scancode, action, character, extended, was_down, callback);
}

References action, callback, character, extended, key, scancode, and was_down.

◆ OnPointerDown()

void flutter::FlutterWindowsView::OnPointerDown	(	double	x,
		double	y,
		FlutterPointerDeviceKind	device_kind,
		int32_t	device_id,
		FlutterPointerMouseButtons	button,
		uint32_t	rotation,
		uint32_t	pressure
	)

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 277 of file flutter_windows_view.cc.

                       {
  if (flutter_button != 0) {
    auto state = GetOrCreatePointerState(device_kind, device_id);
    state->buttons |= flutter_button;
    state->rotation = rotation;
    state->pressure = pressure;
    SendPointerDown(x, y, state);
  }
}

References x, and y.

◆ OnPointerLeave()

void flutter::FlutterWindowsView::OnPointerLeave	(	double	x,
		double	y,
		FlutterPointerDeviceKind	device_kind,
		int32_t	device_id = `0`
	)

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 307 of file flutter_windows_view.cc.

                                                           {
  SendPointerLeave(x, y, GetOrCreatePointerState(device_kind, device_id));
}

References x, and y.

◆ OnPointerMove()

void flutter::FlutterWindowsView::OnPointerMove	(	double	x,
		double	y,
		FlutterPointerDeviceKind	device_kind,
		int32_t	device_id,
		uint32_t	rotation,
		uint32_t	pressure,
		int	modifiers_state
	)

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 263 of file flutter_windows_view.cc.

                                                            {
  engine_->keyboard_key_handler()->SyncModifiersIfNeeded(modifiers_state);
  auto state = GetOrCreatePointerState(device_kind, device_id);
  state->rotation = rotation;
  state->pressure = pressure;
  SendPointerMove(x, y, state);
}

References flutter::FlutterWindowsEngine::keyboard_key_handler(), flutter::KeyboardHandlerBase::SyncModifiersIfNeeded(), x, and y.

◆ OnPointerPanZoomEnd()

void flutter::FlutterWindowsView::OnPointerPanZoomEnd ( int32_t device_id )

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 327 of file flutter_windows_view.cc.

                                                              {
  SendPointerPanZoomEnd(device_id);
}

◆ OnPointerPanZoomStart()

void flutter::FlutterWindowsView::OnPointerPanZoomStart ( int32_t device_id )

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 314 of file flutter_windows_view.cc.

                                                                {
  PointerLocation point = binding_handler_->GetPrimaryPointerLocation();
  SendPointerPanZoomStart(device_id, point.x, point.y);
}

References flutter::PointerLocation::x, and flutter::PointerLocation::y.

◆ OnPointerPanZoomUpdate()

void flutter::FlutterWindowsView::OnPointerPanZoomUpdate	(	int32_t	device_id,
		double	pan_x,
		double	pan_y,
		double	scale,
		double	rotation
	)

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 319 of file flutter_windows_view.cc.

                                                                 {
  SendPointerPanZoomUpdate(device_id, pan_x, pan_y, scale, rotation);
}

◆ OnPointerUp()

void flutter::FlutterWindowsView::OnPointerUp	(	double	x,
		double	y,
		FlutterPointerDeviceKind	device_kind,
		int32_t	device_id,
		FlutterPointerMouseButtons	button
	)

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 294 of file flutter_windows_view.cc.

                                               {
  if (flutter_button != 0) {
    auto state = GetOrCreatePointerState(device_kind, device_id);
    state->buttons &= ~flutter_button;
    SendPointerUp(x, y, state);
  }
}

References x, and y.

◆ OnResetImeComposing()

void flutter::FlutterWindowsView::OnResetImeComposing ( )

virtual

Definition at line 399 of file flutter_windows_view.cc.

                                             {
  binding_handler_->OnResetImeComposing();
}

◆ OnScroll()

void flutter::FlutterWindowsView::OnScroll	(	double	x,
		double	y,
		double	delta_x,
		double	delta_y,
		int	scroll_offset_multiplier,
		FlutterPointerDeviceKind	device_kind,
		int32_t	device_id
	)

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 367 of file flutter_windows_view.cc.

                                                     {
  SendScroll(x, y, delta_x, delta_y, scroll_offset_multiplier, device_kind,
             device_id);
}

References x, and y.

◆ OnScrollInertiaCancel()

void flutter::FlutterWindowsView::OnScrollInertiaCancel ( int32_t device_id )

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 378 of file flutter_windows_view.cc.

                                                                {
  PointerLocation point = binding_handler_->GetPrimaryPointerLocation();
  SendScrollInertiaCancel(device_id, point.x, point.y);
}

References flutter::PointerLocation::x, and flutter::PointerLocation::y.

◆ OnText()

void flutter::FlutterWindowsView::OnText ( const std::u16string & text )

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 331 of file flutter_windows_view.cc.

                                                        {
  SendText(text);
}

References text.

◆ OnUpdateSemanticsEnabled()

void flutter::FlutterWindowsView::OnUpdateSemanticsEnabled ( bool enabled )

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 383 of file flutter_windows_view.cc.

                                                              {
  engine_->UpdateSemanticsEnabled(enabled);
}

References flutter::FlutterWindowsEngine::UpdateSemanticsEnabled().

Referenced by flutter::testing::TEST_F(), and flutter::testing::TEST_F().

◆ OnWindowRepaint()

void flutter::FlutterWindowsView::OnWindowRepaint ( )

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 259 of file flutter_windows_view.cc.

                                         {
  ForceRedraw();
}

References ForceRedraw().

◆ OnWindowSizeChanged()

bool flutter::FlutterWindowsView::OnWindowSizeChanged	(	size_t	width,
		size_t	height
	)

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 208 of file flutter_windows_view.cc.

                                                                        {
  if (IsSizedToContent()) {
    // No resize synchronization needed for views sized to content.
    return true;
  }
 
  if (!engine_->egl_manager()) {
    SendWindowMetrics(width, height, binding_handler_->GetDpiScale());
    return true;
  }
 
  if (!surface_ || !surface_->IsValid()) {
    SendWindowMetrics(width, height, binding_handler_->GetDpiScale());
    return true;
  }
 
  // We're using OpenGL rendering. Resizing the surface must happen on the
  // raster thread.
  bool surface_will_update =
      SurfaceWillUpdate(surface_->width(), surface_->height(), width, height);
  if (!surface_will_update) {
    SendWindowMetrics(width, height, binding_handler_->GetDpiScale());
    return true;
  }
 
  {
    std::unique_lock<std::mutex> lock(resize_mutex_);
    resize_status_ = ResizeState::kResizeStarted;
    resize_target_width_ = width;
    resize_target_height_ = height;
  }
 
  SendWindowMetrics(width, height, binding_handler_->GetDpiScale());
 
  std::chrono::time_point<std::chrono::steady_clock> start_time =
      std::chrono::steady_clock::now();
 
  while (true) {
    if (std::chrono::steady_clock::now() > start_time + kWindowResizeTimeout) {
      return false;
    }
    std::unique_lock<std::mutex> lock(resize_mutex_);
    if (resize_status_ == ResizeState::kDone) {
      break;
    }
    lock.unlock();
    engine_->task_runner()->PollOnce(kWindowResizeTimeout);
  }
  return true;
}

References flutter::FlutterWindowsEngine::egl_manager(), height, flutter::TaskRunner::PollOnce(), flutter::FlutterWindowsEngine::task_runner(), and width.

◆ OnWindowStateEvent()

void flutter::FlutterWindowsView::OnWindowStateEvent	(	HWND	hwnd,
		WindowStateEvent	event
	)

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 918 of file flutter_windows_view.cc.

                                                                             {
  engine_->OnWindowStateEvent(hwnd, event);
}

References flutter::FlutterWindowsEngine::OnWindowStateEvent().

◆ PresentSoftwareBitmap()

bool flutter::FlutterWindowsView::PresentSoftwareBitmap	(	const void *	allocation,
		size_t	row_bytes,
		size_t	height
	)

virtual

Definition at line 782 of file flutter_windows_view.cc.

                                                              {
  bool result =
      binding_handler_->OnBitmapSurfaceUpdated(allocation, row_bytes, height);
  if (result) {
    // The software compositor does not call OnFramePresented, so fire the
    // first frame callback here.
    FireFirstFrameCallbackIfSet();
  }
  return result;
}

References height.

◆ SendInitialBounds()

void flutter::FlutterWindowsView::SendInitialBounds ( )

Definition at line 454 of file flutter_windows_view.cc.

                                           {
  // Non-implicit views' initial window metrics are sent when the view is added
  // to the engine.
  if (!IsImplicitView()) {
    return;
  }
 
  engine_->SendWindowMetricsEvent(CreateWindowMetricsEvent());
}

References CreateWindowMetricsEvent(), IsImplicitView(), and flutter::FlutterWindowsEngine::SendWindowMetricsEvent().

◆ SetFirstFrameCallback()

void flutter::FlutterWindowsView::SetFirstFrameCallback ( fml::closure callback )

Definition at line 729 of file flutter_windows_view.cc.

                                                                  {
  std::scoped_lock lock(first_frame_callback_mutex_);
  first_frame_callback_ = std::move(callback);
}

References callback.

◆ surface()

egl::WindowSurface * flutter::FlutterWindowsView::surface ( ) const

Definition at line 856 of file flutter_windows_view.cc.

                                                    {
  return surface_.get();
}

◆ UpdateSemanticsEnabled()

void flutter::FlutterWindowsView::UpdateSemanticsEnabled ( bool enabled )

virtual

Definition at line 902 of file flutter_windows_view.cc.

                                                            {
  if (semantics_enabled_ != enabled) {
    semantics_enabled_ = enabled;
 
    if (!semantics_enabled_ && accessibility_bridge_) {
      accessibility_bridge_.reset();
    } else if (semantics_enabled_ && !accessibility_bridge_) {
      accessibility_bridge_ = CreateAccessibilityBridge();
    }
  }
}

References CreateAccessibilityBridge().

◆ view_id()

FlutterViewId flutter::FlutterWindowsView::view_id ( ) const

Definition at line 795 of file flutter_windows_view.cc.

                                                {
  return view_id_;
}

Referenced by flutter::AccessibilityBridgeWindows::DispatchAccessibilityAction().

Friends And Related Symbol Documentation

◆ ViewModifier

friend class ViewModifier

friend

Definition at line 286 of file flutter_windows_view.h.

The documentation for this class was generated from the following files:

shell/platform/windows/flutter_windows_view.h
shell/platform/windows/flutter_windows_view.cc

Public Member Functions

Protected Member Functions

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ FlutterWindowsView()

◆ ~FlutterWindowsView()

Member Function Documentation

◆ accessibility_bridge()

◆ AlertNode()

◆ AnnounceAlert()

◆ ClearSoftwareBitmap()

◆ CreateAccessibilityBridge()

◆ CreateRenderSurface()

◆ CreateWindowMetricsEvent()

◆ Focus()

◆ ForceRedraw()

◆ GetAxFragmentRootDelegate()

◆ GetEngine()

◆ GetNativeViewAccessible()

◆ GetWindowHandle()

◆ IsImplicitView()

◆ NotifyWinEventWrapper()

◆ OnComposeBegin()

◆ OnComposeChange()

◆ OnComposeCommit()

◆ OnComposeEnd()

◆ OnCursorRectUpdated()

◆ OnDwmCompositionChanged()

◆ OnEmptyFrameGenerated()

◆ OnFocus()

◆ OnFrameGenerated()

◆ OnFramePresented()

◆ OnHighContrastChanged()

◆ OnKey()

◆ OnPointerDown()

◆ OnPointerLeave()

◆ OnPointerMove()

◆ OnPointerPanZoomEnd()

◆ OnPointerPanZoomStart()

◆ OnPointerPanZoomUpdate()

◆ OnPointerUp()

◆ OnResetImeComposing()

◆ OnScroll()

◆ OnScrollInertiaCancel()

◆ OnText()

◆ OnUpdateSemanticsEnabled()

◆ OnWindowRepaint()

◆ OnWindowSizeChanged()

◆ OnWindowStateEvent()

◆ PresentSoftwareBitmap()

◆ SendInitialBounds()

◆ SetFirstFrameCallback()

◆ surface()

◆ UpdateSemanticsEnabled()

◆ view_id()

Friends And Related Symbol Documentation

◆ ViewModifier