#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	SetSizedToContent (bool sized_to_content)

bool	IsSizedToContent () const

void	OnWindowRepaint () override

void	OnPointerMove (double x, double y, FlutterPointerDeviceKind device_kind, int32_t device_id, uint64_t buttons, uint32_t rotation, uint32_t pressure, int modifiers_state) override

void	OnPointerDown (double x, double y, FlutterPointerDeviceKind device_kind, int32_t device_id, uint64_t buttons, uint32_t rotation, uint32_t pressure) override

void	OnPointerUp (double x, double y, FlutterPointerDeviceKind device_kind, int32_t device_id, uint64_t buttons) 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 48 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 281 of file flutter_windows_view.h.

                                                                  {
     return accessibility_bridge_;
   }

Referenced by flutter::FlutterWindowsEngine::Run().

◆ AlertNode()

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

Definition at line 897 of file flutter_windows_view.cc.

                                                          {
   return binding_handler_->GetAlert();
 }

◆ AnnounceAlert()

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

virtual

Definition at line 876 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 NotifyWinEventWrapper(), and text.

◆ ClearSoftwareBitmap()

bool flutter::FlutterWindowsView::ClearSoftwareBitmap ( )

virtual

Definition at line 782 of file flutter_windows_view.cc.

                                              {
   return binding_handler_->OnBitmapSurfaceCleared();
 }

Referenced by flutter::CompositorSoftware::Present().

◆ CreateAccessibilityBridge()

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

protectedvirtual

Definition at line 902 of file flutter_windows_view.cc.

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

Referenced by UpdateSemanticsEnabled().

◆ CreateRenderSurface()

void flutter::FlutterWindowsView::CreateRenderSurface ( )

Definition at line 807 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(), GetWindowHandle(), flutter::PhysicalWindowBounds::height, and flutter::PhysicalWindowBounds::width.

◆ CreateWindowMetricsEvent()

FlutterWindowMetricsEvent flutter::FlutterWindowsView::CreateWindowMetricsEvent ( ) const

Definition at line 432 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, and flutter::PhysicalWindowBounds::width.

Referenced by SendInitialBounds(), and SetSizedToContent().

◆ Focus()

bool flutter::FlutterWindowsView::Focus ( )

virtual

Definition at line 926 of file flutter_windows_view.cc.

                                {
   return binding_handler_->Focus();
 }

Referenced by flutter::FlutterWindowsEngine::OnViewFocusChangeRequest().

◆ 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 893 of file flutter_windows_view.cc.

                                                                            {
   return accessibility_bridge_.get();
 }

◆ GetEngine()

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

Definition at line 872 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 391 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 868 of file flutter_windows_view.cc.

                                                {
   return binding_handler_->GetWindowHandle();
 }

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

◆ IsImplicitView()

bool flutter::FlutterWindowsView::IsImplicitView ( ) const

Definition at line 803 of file flutter_windows_view.cc.

                                               {
   return view_id_ == kImplicitViewId;
 }

References flutter::kImplicitViewId.

Referenced by SendInitialBounds().

◆ IsSizedToContent()

bool flutter::FlutterWindowsView::IsSizedToContent ( ) const

Definition at line 937 of file flutter_windows_view.cc.

                                                 {
   return is_sized_to_content_;
 }

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

◆ NotifyWinEventWrapper()

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

protectedvirtual

Definition at line 886 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 354 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 366 of file flutter_windows_view.cc.

                                                          {
   SendComposeChange(text, cursor_pos);
 }

References text.

◆ OnComposeCommit()

void flutter::FlutterWindowsView::OnComposeCommit ( )

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 358 of file flutter_windows_view.cc.

                                          {
   SendComposeCommit();
 }

◆ OnComposeEnd()

void flutter::FlutterWindowsView::OnComposeEnd ( )

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 362 of file flutter_windows_view.cc.

                                       {
   SendComposeEnd();
 }

◆ OnCursorRectUpdated()

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

virtual

Definition at line 399 of file flutter_windows_view.cc.

                                                              {
   binding_handler_->OnCursorRectUpdated(rect);
 }

◆ OnDwmCompositionChanged()

void flutter::FlutterWindowsView::OnDwmCompositionChanged ( )

Definition at line 918 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_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;
 }

◆ 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 349 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(), and IsSizedToContent().

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

◆ OnFramePresented()

void flutter::FlutterWindowsView::OnFramePresented ( )

virtual

Definition at line 747 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().

Referenced by flutter::CompositorOpenGL::Present().

◆ OnHighContrastChanged()

void flutter::FlutterWindowsView::OnHighContrastChanged ( )

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 864 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 339 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,
		uint64_t	buttons,
		uint32_t	rotation,
		uint32_t	pressure
	)

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 282 of file flutter_windows_view.cc.

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

◆ OnPointerLeave()

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

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 311 of file flutter_windows_view.cc.

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

◆ OnPointerMove()

void flutter::FlutterWindowsView::OnPointerMove	(	double	x,
		double	y,
		FlutterPointerDeviceKind	device_kind,
		int32_t	device_id,
		uint64_t	buttons,
		uint32_t	rotation,
		uint32_t	pressure,
		int	modifiers_state
	)

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 266 of file flutter_windows_view.cc.

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

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

◆ OnPointerPanZoomEnd()

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

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 331 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 318 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 323 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,
		uint64_t	buttons
	)

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 298 of file flutter_windows_view.cc.

                                                        {
   auto state = GetOrCreatePointerState(device_kind, device_id);
   const uint64_t released_buttons = buttons == 0 ? state->buttons : buttons;
   if (released_buttons != 0) {
     state->buttons &= ~released_buttons;
     SendPointerUp(x, y, state);
   }
 }

◆ OnResetImeComposing()

void flutter::FlutterWindowsView::OnResetImeComposing ( )

virtual

Definition at line 403 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 371 of file flutter_windows_view.cc.

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

◆ OnScrollInertiaCancel()

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

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 382 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 335 of file flutter_windows_view.cc.

                                                         {
   SendText(text);
 }

References text.

◆ OnUpdateSemanticsEnabled()

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

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 387 of file flutter_windows_view.cc.

                                                               {
   engine_->UpdateSemanticsEnabled(enabled);
 }

References flutter::FlutterWindowsEngine::UpdateSemanticsEnabled().

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

◆ OnWindowRepaint()

void flutter::FlutterWindowsView::OnWindowRepaint ( )

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 262 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.
     // Still send metrics so the engine renders at the correct viewport size
     // (e.g. after the child window is resized to the host's client area).
     SendWindowMetrics(width, height, binding_handler_->GetDpiScale());
     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(), IsSizedToContent(), flutter::TaskRunner::PollOnce(), and flutter::FlutterWindowsEngine::task_runner().

◆ OnWindowStateEvent()

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

overridevirtual

Implements flutter::WindowBindingHandlerDelegate.

Definition at line 922 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 786 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;
 }

Referenced by flutter::CompositorSoftware::Present().

◆ SendInitialBounds()

void flutter::FlutterWindowsView::SendInitialBounds ( )

Definition at line 458 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 733 of file flutter_windows_view.cc.

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

References callback.

◆ SetSizedToContent()

void flutter::FlutterWindowsView::SetSizedToContent ( bool sized_to_content )

Definition at line 941 of file flutter_windows_view.cc.

                                                                 {
   is_sized_to_content_ = sized_to_content;
   engine_->SendWindowMetricsEvent(CreateWindowMetricsEvent());
 }

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

◆ surface()

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

Definition at line 860 of file flutter_windows_view.cc.

                                                     {
   return surface_.get();
 }

Referenced by flutter::CompositorOpenGL::Present().

◆ UpdateSemanticsEnabled()

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

virtual

Definition at line 906 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 799 of file flutter_windows_view.cc.

                                                 {
   return view_id_;
 }

Referenced by flutter::AccessibilityBridgeWindows::DispatchAccessibilityAction(), and flutter::WindowManager::HandleMessage().

Friends And Related Function Documentation

◆ ViewModifier

friend class ViewModifier

friend

Definition at line 302 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()

◆ IsSizedToContent()

◆ 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()

◆ SetSizedToContent()

◆ surface()

◆ UpdateSemanticsEnabled()

◆ view_id()

Friends And Related Function Documentation

◆ ViewModifier