| Flutter Windows Embedder |

flutter_windows_view.h
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1 // Copyright 2013 The Flutter Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef FLUTTER_SHELL_PLATFORM_WINDOWS_FLUTTER_WINDOWS_VIEW_H_
6 #define FLUTTER_SHELL_PLATFORM_WINDOWS_FLUTTER_WINDOWS_VIEW_H_
7
8 #include <memory>
9 #include <mutex>
10 #include <string>
11 #include <unordered_map>
12 #include <utility>
13 #include <vector>
14
15 #include "flutter/fml/macros.h"
16 #include "flutter/shell/geometry/geometry.h"
17 #include "flutter/shell/platform/common/client_wrapper/include/flutter/plugin_registrar.h"
18 #include "flutter/shell/platform/embedder/embedder.h"
19 #include "flutter/shell/platform/windows/accessibility_bridge_windows.h"
20 #include "flutter/shell/platform/windows/flutter_windows_engine.h"
21 #include "flutter/shell/platform/windows/public/flutter_windows.h"
22 #include "flutter/shell/platform/windows/window_binding_handler.h"
23 #include "flutter/shell/platform/windows/window_binding_handler_delegate.h"
24 #include "flutter/shell/platform/windows/window_state.h"
25 #include "flutter/shell/platform/windows/windows_proc_table.h"
26
27 namespace flutter {
28
29 // A unique identifier for a view.
30 using FlutterViewId = int64_t;
31
32 // An OS-windowing neutral abstration for a Flutter view that works
33 // with win32 HWNDs.
34 class FlutterWindowsView : public WindowBindingHandlerDelegate {
35 public:
36 // Creates a FlutterWindowsView with the given implementor of
37 // WindowBindingHandler.
38 FlutterWindowsView(
39 FlutterViewId view_id,
40 FlutterWindowsEngine* engine,
41 std::unique_ptr<WindowBindingHandler> window_binding,
42 std::shared_ptr<WindowsProcTable> windows_proc_table = nullptr);
43
44 virtual ~FlutterWindowsView();
45
46 // Get the view's unique identifier.
47 FlutterViewId view_id() const;
48
49 // Whether this view is the implicit view.
50 //
51 // The implicit view is a special view for backwards compatibility.
52 // The engine assumes it can always render to this view, even if the app has
53 // destroyed the window for this view.
54 //
55 // Today, the implicit view is the first view that is created. It is the only
56 // view that can be created before the engine is launched.
57 //
58 // The embedder must ignore presents to this view before it is created and
59 // after it is destroyed.
60 //
61 // See:
62 // https://api.flutter.dev/flutter/dart-ui/PlatformDispatcher/implicitView.html
63 bool IsImplicitView() const;
64
65 // Create a rendering surface for Flutter engine to draw into.
66 //
67 // This is a no-op if using software rasterization.
68 void CreateRenderSurface();
69
70 // Get the EGL surface that backs the Flutter view.
71 //
72 // This might be nullptr or an invalid surface.
73 egl::WindowSurface* surface() const;
74
75 // Return the currently configured HWND.
76 virtual HWND GetWindowHandle() const;
77
78 // Returns the engine backing this view.
79 FlutterWindowsEngine* GetEngine() const;
80
81 // Tells the engine to generate a new frame
82 void ForceRedraw();
83
84 // Callback to clear a previously presented software bitmap.
85 virtual bool ClearSoftwareBitmap();
86
87 // Callback for presenting a software bitmap.
88 virtual bool PresentSoftwareBitmap(const void* allocation,
89 size_t row_bytes,
90 size_t height);
91
92 // Creates a window metric for this view.
93 //
94 // Used to notify the engine of a view's current size and device pixel ratio.
95 FlutterWindowMetricsEvent CreateWindowMetricsEvent() const;
96
97 // Send initial bounds to embedder. Must occur after engine has initialized.
98 //
99 // This is a no-op if this is not the implicit view. Non-implicit views'
100 // initial window metrics are sent when the view is added to the engine.
101 void SendInitialBounds();
102
103 // Set the text of the alert, and create it if it does not yet exist.
104 virtual void AnnounceAlert(const std::wstring& text);
105
106 // |WindowBindingHandlerDelegate|
107 void OnHighContrastChanged() override;
108
109 // Called on the raster thread when |CompositorOpenGL| receives an empty
110 // frame. Returns true if the frame can be presented.
111 //
112 // This destroys and then re-creates the view's surface if a resize is
113 // pending.
114 bool OnEmptyFrameGenerated();
115
116 // Called on the raster thread when |CompositorOpenGL| receives a frame.
117 // Returns true if the frame can be presented.
118 //
119 // This destroys and then re-creates the view's surface if a resize is pending
120 // and |width| and |height| match the target size.
121 bool OnFrameGenerated(size_t width, size_t height);
122
123 // Called on the raster thread after |CompositorOpenGL| presents a frame.
124 //
125 // This completes a view resize if one is pending.
126 virtual void OnFramePresented();
127
128 // |WindowBindingHandlerDelegate|
129 bool OnWindowSizeChanged(size_t width, size_t height) override;
130
131 // |WindowBindingHandlerDelegate|
132 void OnWindowRepaint() override;
133
134 // |WindowBindingHandlerDelegate|
135 void OnPointerMove(double x,
136 double y,
137 FlutterPointerDeviceKind device_kind,
138 int32_t device_id,
139 int modifiers_state) override;
140
141 // |WindowBindingHandlerDelegate|
142 void OnPointerDown(double x,
143 double y,
144 FlutterPointerDeviceKind device_kind,
145 int32_t device_id,
146 FlutterPointerMouseButtons button) override;
147
148 // |WindowBindingHandlerDelegate|
149 void OnPointerUp(double x,
150 double y,
151 FlutterPointerDeviceKind device_kind,
152 int32_t device_id,
153 FlutterPointerMouseButtons button) override;
154
155 // |WindowBindingHandlerDelegate|
156 void OnPointerLeave(double x,
157 double y,
158 FlutterPointerDeviceKind device_kind,
159 int32_t device_id = 0) override;
160
161 // |WindowBindingHandlerDelegate|
162 virtual void OnPointerPanZoomStart(int32_t device_id) override;
163
164 // |WindowBindingHandlerDelegate|
165 virtual void OnPointerPanZoomUpdate(int32_t device_id,
166 double pan_x,
167 double pan_y,
168 double scale,
169 double rotation) override;
170
171 // |WindowBindingHandlerDelegate|
172 virtual void OnPointerPanZoomEnd(int32_t device_id) override;
173
174 // |WindowBindingHandlerDelegate|
175 void OnText(const std::u16string&) override;
176
177 // |WindowBindingHandlerDelegate|
178 void OnKey(int key,
179 int scancode,
180 int action,
181 char32_t character,
182 bool extended,
183 bool was_down,
184 KeyEventCallback callback) override;
185
186 // |WindowBindingHandlerDelegate|
187 void OnFocus(FlutterViewFocusState focus_state,
188 FlutterViewFocusDirection direction) override;
189
190 // |WindowBindingHandlerDelegate|
191 void OnComposeBegin() override;
192
193 // |WindowBindingHandlerDelegate|
194 void OnComposeCommit() override;
195
196 // |WindowBindingHandlerDelegate|
197 void OnComposeEnd() override;
198
199 // |WindowBindingHandlerDelegate|
200 void OnComposeChange(const std::u16string& text, int cursor_pos) override;
201
202 // |WindowBindingHandlerDelegate|
203 void OnScroll(double x,
204 double y,
205 double delta_x,
206 double delta_y,
207 int scroll_offset_multiplier,
208 FlutterPointerDeviceKind device_kind,
209 int32_t device_id) override;
210
211 // |WindowBindingHandlerDelegate|
212 void OnScrollInertiaCancel(int32_t device_id) override;
213
214 // |WindowBindingHandlerDelegate|
215 virtual void OnUpdateSemanticsEnabled(bool enabled) override;
216
217 // |WindowBindingHandlerDelegate|
218 virtual gfx::NativeViewAccessible GetNativeViewAccessible() override;
219
220 // Notifies the delegate of the updated the cursor rect in Flutter root view
221 // coordinates.
222 virtual void OnCursorRectUpdated(const Rect& rect);
223
224 // Notifies the delegate that the system IME composing state should be reset.
225 virtual void OnResetImeComposing();
226
227 // Called when a WM_ONCOMPOSITIONCHANGED message is received.
228 void OnDwmCompositionChanged();
229
230 // Get a pointer to the alert node for this view.
231 ui::AXPlatformNodeWin* AlertNode() const;
232
233 // |WindowBindingHandlerDelegate|
234 virtual ui::AXFragmentRootDelegateWin* GetAxFragmentRootDelegate() override;
235
236 // Called to re/set the accessibility bridge pointer.
237 virtual void UpdateSemanticsEnabled(bool enabled);
238
239 std::weak_ptr<AccessibilityBridgeWindows> accessibility_bridge() {
240 return accessibility_bridge_;
241 }
242
243 // |WindowBindingHandlerDelegate|
244 void OnWindowStateEvent(HWND hwnd, WindowStateEvent event) override;
245
246 // Focus the view.
247 // Returns true if the view was focused.
248 virtual bool Focus();
249
250 protected:
251 virtual void NotifyWinEventWrapper(ui::AXPlatformNodeWin* node,
252 ax::mojom::Event event);
253
254 // Create an AccessibilityBridgeWindows using this view.
255 virtual std::shared_ptr<AccessibilityBridgeWindows>
256 CreateAccessibilityBridge();
257
258 private:
259 // Allows setting the surface in tests.
260 friend class ViewModifier;
261
262 // Struct holding the state of an individual pointer. The engine doesn't keep
263 // track of which buttons have been pressed, so it's the embedding's
264 // responsibility.
265 struct PointerState {
266 // The device kind.
267 FlutterPointerDeviceKind device_kind = kFlutterPointerDeviceKindMouse;
268
269 // A virtual pointer ID that is unique across all device kinds.
270 int32_t pointer_id = 0;
271
272 // True if the last event sent to Flutter had at least one button pressed.
273 bool flutter_state_is_down = false;
274
275 // True if kAdd has been sent to Flutter. Used to determine whether
276 // to send a kAdd event before sending an incoming pointer event, since
277 // Flutter expects pointers to be added before events are sent for them.
278 bool flutter_state_is_added = false;
279
280 // The currently pressed buttons, as represented in FlutterPointerEvent.
281 uint64_t buttons = 0;
282
283 // The x position where the last pan/zoom started.
284 double pan_zoom_start_x = 0;
285
286 // The y position where the last pan/zoom started.
287 double pan_zoom_start_y = 0;
288 };
289
290 // States a resize event can be in.
291 enum class ResizeState {
292 // When a resize event has started but is in progress.
293 kResizeStarted,
294 // After a resize event starts and the framework has been notified to
295 // generate a frame for the right size.
296 kFrameGenerated,
297 // Default state for when no resize is in progress. Also used to indicate
298 // that during a resize event, a frame with the right size has been rendered
299 // and the buffers have been swapped.
300 kDone,
301 };
302
303 // Resize the surface to the desired size.
304 //
305 // If the dimensions have changed, this destroys the original surface and
306 // creates a new one.
307 //
308 // This must be run on the raster thread. This binds the surface to the
309 // current thread.
310 //
311 // Width and height are the surface's desired physical pixel dimensions.
312 bool ResizeRenderSurface(size_t width, size_t height);
313
314 // Sends a window metrics update to the Flutter engine using current window
315 // dimensions in physical pixels.
316 void SendWindowMetrics(size_t width, size_t height, double pixel_ratio) const;
317
318 // Reports a mouse movement to Flutter engine.
319 void SendPointerMove(double x, double y, PointerState* state);
320
321 // Reports mouse press to Flutter engine.
322 void SendPointerDown(double x, double y, PointerState* state);
323
324 // Reports mouse release to Flutter engine.
325 void SendPointerUp(double x, double y, PointerState* state);
326
327 // Reports mouse left the window client area.
328 //
329 // Win32 api doesn't have "mouse enter" event. Therefore, there is no
330 // SendPointerEnter method. A mouse enter event is tracked then the "move"
331 // event is called.
332 void SendPointerLeave(double x, double y, PointerState* state);
333
334 void SendPointerPanZoomStart(int32_t device_id, double x, double y);
335
336 void SendPointerPanZoomUpdate(int32_t device_id,
337 double pan_x,
338 double pan_y,
339 double scale,
340 double rotation);
341
342 void SendPointerPanZoomEnd(int32_t device_id);
343
344 // Reports a keyboard character to Flutter engine.
345 void SendText(const std::u16string&);
346
347 // Reports a raw keyboard message to Flutter engine.
348 void SendKey(int key,
349 int scancode,
350 int action,
351 char32_t character,
352 bool extended,
353 bool was_down,
354 KeyEventCallback callback);
355
356 // Reports a focus event to Flutter engine.
357 void SendFocus(FlutterViewFocusState focus_state,
358 FlutterViewFocusDirection direction);
359
360 // Reports an IME compose begin event.
361 //
362 // Triggered when the user begins editing composing text using a multi-step
363 // input method such as in CJK text input.
364 void SendComposeBegin();
365
366 // Reports an IME compose commit event.
367 //
368 // Triggered when the user commits the current composing text while using a
369 // multi-step input method such as in CJK text input. Composing continues with
370 // the next keypress.
371 void SendComposeCommit();
372
373 // Reports an IME compose end event.
374 //
375 // Triggered when the user commits the composing text while using a multi-step
376 // input method such as in CJK text input.
377 void SendComposeEnd();
378
379 // Reports an IME composing region change event.
380 //
381 // Triggered when the user edits the composing text while using a multi-step
382 // input method such as in CJK text input.
383 void SendComposeChange(const std::u16string& text, int cursor_pos);
384
385 // Reports scroll wheel events to Flutter engine.
386 void SendScroll(double x,
387 double y,
388 double delta_x,
389 double delta_y,
390 int scroll_offset_multiplier,
391 FlutterPointerDeviceKind device_kind,
392 int32_t device_id);
393
394 // Reports scroll inertia cancel events to Flutter engine.
395 void SendScrollInertiaCancel(int32_t device_id, double x, double y);
396
397 // Creates a PointerState object unless it already exists.
398 PointerState* GetOrCreatePointerState(FlutterPointerDeviceKind device_kind,
399 int32_t device_id);
400
401 // Sets |event_data|'s phase to either kMove or kHover depending on the
402 // current primary mouse button state.
403 void SetEventPhaseFromCursorButtonState(FlutterPointerEvent* event_data,
404 const PointerState* state) const;
405
406 // Sends a pointer event to the Flutter engine based on given data. Since
407 // all input messages are passed in physical pixel values, no translation is
408 // needed before passing on to engine.
409 void SendPointerEventWithData(const FlutterPointerEvent& event_data,
410 PointerState* state);
411
412 // If true, rendering to the window should synchronize with the vsync
413 // to prevent screen tearing.
414 bool NeedsVsync() const;
415
416 // The view's unique identifier.
417 FlutterViewId view_id_;
418
419 // The engine associated with this view.
420 FlutterWindowsEngine* engine_ = nullptr;
421
422 // Mocks win32 APIs.
423 std::shared_ptr<WindowsProcTable> windows_proc_table_;
424
425 // The EGL surface backing the view.
426 //
427 // Null if using software rasterization, the surface hasn't been created yet,
428 // or if surface creation failed.
429 std::unique_ptr<egl::WindowSurface> surface_ = nullptr;
430
431 // Keeps track of pointer states in relation to the window.
432 std::unordered_map<int32_t, std::unique_ptr<PointerState>> pointer_states_;
433
434 // Currently configured WindowBindingHandler for view.
435 std::unique_ptr<WindowBindingHandler> binding_handler_;
436
437 // Protects resize_status_, resize_target_width_ and resize_target_height_.
438 std::mutex resize_mutex_;
439
440 // Indicates the state of a window resize event. Platform thread will be
441 // blocked while this is not done. Guarded by resize_mutex_.
442 ResizeState resize_status_ = ResizeState::kDone;
443
444 // Target for the window width. Valid when resize_pending_ is set. Guarded by
445 // resize_mutex_.
446 size_t resize_target_width_ = 0;
447
448 // Target for the window width. Valid when resize_pending_ is set. Guarded by
449 // resize_mutex_.
450 size_t resize_target_height_ = 0;
451
452 // True when flutter's semantics tree is enabled.
453 bool semantics_enabled_ = false;
454
455 // The accessibility bridge associated with this view.
456 std::shared_ptr<AccessibilityBridgeWindows> accessibility_bridge_;
457
458 FML_DISALLOW_COPY_AND_ASSIGN(FlutterWindowsView);
459 };
460
461 } // namespace flutter
462
463 #endif // FLUTTER_SHELL_PLATFORM_WINDOWS_FLUTTER_WINDOWS_VIEW_H_
accessibility_bridge_windows.h
flutter::FlutterWindowsEngine
Definition: flutter_windows_engine.h:92
flutter::FlutterWindowsView
Definition: flutter_windows_view.h:34
flutter::FlutterWindowsView::OnFramePresented
virtual void OnFramePresented()
Definition: flutter_windows_view.cc:669
flutter::FlutterWindowsView::OnPointerPanZoomStart
virtual void OnPointerPanZoomStart(int32_t device_id) override
Definition: flutter_windows_view.cc:279
flutter::FlutterWindowsView::CreateRenderSurface
void CreateRenderSurface()
Definition: flutter_windows_view.cc:721
flutter::FlutterWindowsView::OnPointerUp
void OnPointerUp(double x, double y, FlutterPointerDeviceKind device_kind, int32_t device_id, FlutterPointerMouseButtons button) override
Definition: flutter_windows_view.cc:259
flutter::FlutterWindowsView::Focus
virtual bool Focus()
Definition: flutter_windows_view.cc:840
flutter::FlutterWindowsView::FlutterWindowsView
FlutterWindowsView(FlutterViewId view_id, FlutterWindowsEngine *engine, std::unique_ptr< WindowBindingHandler > window_binding, std::shared_ptr< WindowsProcTable > windows_proc_table=nullptr)
Definition: flutter_windows_view.cc:104
flutter::FlutterWindowsView::UpdateSemanticsEnabled
virtual void UpdateSemanticsEnabled(bool enabled)
Definition: flutter_windows_view.cc:820
flutter::FlutterWindowsView::GetAxFragmentRootDelegate
virtual ui::AXFragmentRootDelegateWin * GetAxFragmentRootDelegate() override
Definition: flutter_windows_view.cc:807
flutter::FlutterWindowsView::OnPointerMove
void OnPointerMove(double x, double y, FlutterPointerDeviceKind device_kind, int32_t device_id, int modifiers_state) override
Definition: flutter_windows_view.cc:237
flutter::FlutterWindowsView::IsImplicitView
bool IsImplicitView() const
Definition: flutter_windows_view.cc:717
flutter::FlutterWindowsView::OnScrollInertiaCancel
void OnScrollInertiaCancel(int32_t device_id) override
Definition: flutter_windows_view.cc:343
flutter::FlutterWindowsView::CreateAccessibilityBridge
virtual std::shared_ptr< AccessibilityBridgeWindows > CreateAccessibilityBridge()
Definition: flutter_windows_view.cc:816
flutter::FlutterWindowsView::OnComposeBegin
void OnComposeBegin() override
Definition: flutter_windows_view.cc:315
flutter::FlutterWindowsView::AlertNode
ui::AXPlatformNodeWin * AlertNode() const
Definition: flutter_windows_view.cc:811
flutter::FlutterWindowsView::OnResetImeComposing
virtual void OnResetImeComposing()
Definition: flutter_windows_view.cc:364
flutter::FlutterWindowsView::accessibility_bridge
std::weak_ptr< AccessibilityBridgeWindows > accessibility_bridge()
Definition: flutter_windows_view.h:239
flutter::FlutterWindowsView::OnUpdateSemanticsEnabled
virtual void OnUpdateSemanticsEnabled(bool enabled) override
Definition: flutter_windows_view.cc:348
flutter::FlutterWindowsView::OnPointerLeave
void OnPointerLeave(double x, double y, FlutterPointerDeviceKind device_kind, int32_t device_id=0) override
Definition: flutter_windows_view.cc:272
flutter::FlutterWindowsView::NotifyWinEventWrapper
virtual void NotifyWinEventWrapper(ui::AXPlatformNodeWin *node, ax::mojom::Event event)
Definition: flutter_windows_view.cc:800
flutter::FlutterWindowsView::GetEngine
FlutterWindowsEngine * GetEngine() const
Definition: flutter_windows_view.cc:786
flutter::FlutterWindowsView::OnScroll
void OnScroll(double x, double y, double delta_x, double delta_y, int scroll_offset_multiplier, FlutterPointerDeviceKind device_kind, int32_t device_id) override
Definition: flutter_windows_view.cc:332
flutter::FlutterWindowsView::OnWindowStateEvent
void OnWindowStateEvent(HWND hwnd, WindowStateEvent event) override
Definition: flutter_windows_view.cc:836
flutter::FlutterWindowsView::OnPointerPanZoomEnd
virtual void OnPointerPanZoomEnd(int32_t device_id) override
Definition: flutter_windows_view.cc:292
flutter::FlutterWindowsView::CreateWindowMetricsEvent
FlutterWindowMetricsEvent CreateWindowMetricsEvent() const
Definition: flutter_windows_view.cc:383
flutter::FlutterWindowsView::view_id
FlutterViewId view_id() const
Definition: flutter_windows_view.cc:713
flutter::FlutterWindowsView::AnnounceAlert
virtual void AnnounceAlert(const std::wstring &text)
Definition: flutter_windows_view.cc:790
flutter::FlutterWindowsView::SendInitialBounds
void SendInitialBounds()
Definition: flutter_windows_view.cc:399
flutter::FlutterWindowsView::ViewModifier
friend class ViewModifier
Definition: flutter_windows_view.h:260
flutter::FlutterWindowsView::PresentSoftwareBitmap
virtual bool PresentSoftwareBitmap(const void *allocation, size_t row_bytes, size_t height)
Definition: flutter_windows_view.cc:706
flutter::FlutterWindowsView::OnFocus
void OnFocus(FlutterViewFocusState focus_state, FlutterViewFocusDirection direction) override
Definition: flutter_windows_view.cc:310
flutter::FlutterWindowsView::GetWindowHandle
virtual HWND GetWindowHandle() const
Definition: flutter_windows_view.cc:782
flutter::FlutterWindowsView::surface
egl::WindowSurface * surface() const
Definition: flutter_windows_view.cc:774
flutter::FlutterWindowsView::OnWindowSizeChanged
bool OnWindowSizeChanged(size_t width, size_t height) override
Definition: flutter_windows_view.cc:187
flutter::FlutterWindowsView::OnText
void OnText(const std::u16string &) override
Definition: flutter_windows_view.cc:296
flutter::FlutterWindowsView::OnWindowRepaint
void OnWindowRepaint() override
Definition: flutter_windows_view.cc:233
flutter::FlutterWindowsView::OnPointerPanZoomUpdate
virtual void OnPointerPanZoomUpdate(int32_t device_id, double pan_x, double pan_y, double scale, double rotation) override
Definition: flutter_windows_view.cc:284
flutter::FlutterWindowsView::OnComposeChange
void OnComposeChange(const std::u16string &text, int cursor_pos) override
Definition: flutter_windows_view.cc:327
flutter::FlutterWindowsView::ForceRedraw
void ForceRedraw()
Definition: flutter_windows_view.cc:179
flutter::FlutterWindowsView::OnDwmCompositionChanged
void OnDwmCompositionChanged()
Definition: flutter_windows_view.cc:832
flutter::FlutterWindowsView::OnComposeCommit
void OnComposeCommit() override
Definition: flutter_windows_view.cc:319
flutter::FlutterWindowsView::ClearSoftwareBitmap
virtual bool ClearSoftwareBitmap()
Definition: flutter_windows_view.cc:702
flutter::FlutterWindowsView::OnPointerDown
void OnPointerDown(double x, double y, FlutterPointerDeviceKind device_kind, int32_t device_id, FlutterPointerMouseButtons button) override
Definition: flutter_windows_view.cc:246
flutter::FlutterWindowsView::GetNativeViewAccessible
virtual gfx::NativeViewAccessible GetNativeViewAccessible() override
Definition: flutter_windows_view.cc:352
flutter::FlutterWindowsView::~FlutterWindowsView
virtual ~FlutterWindowsView()
Definition: flutter_windows_view.cc:121
flutter::FlutterWindowsView::OnHighContrastChanged
void OnHighContrastChanged() override
Definition: flutter_windows_view.cc:778
flutter::FlutterWindowsView::OnCursorRectUpdated
virtual void OnCursorRectUpdated(const Rect &rect)
Definition: flutter_windows_view.cc:360
flutter::FlutterWindowsView::OnKey
void OnKey(int key, int scancode, int action, char32_t character, bool extended, bool was_down, KeyEventCallback callback) override
Definition: flutter_windows_view.cc:300
flutter::FlutterWindowsView::OnComposeEnd
void OnComposeEnd() override
Definition: flutter_windows_view.cc:323
flutter::FlutterWindowsView::OnEmptyFrameGenerated
bool OnEmptyFrameGenerated()
Definition: flutter_windows_view.cc:131
flutter::FlutterWindowsView::OnFrameGenerated
bool OnFrameGenerated(size_t width, size_t height)
Definition: flutter_windows_view.cc:153
flutter::WindowBindingHandlerDelegate
Definition: window_binding_handler_delegate.h:18
flutter::WindowBindingHandlerDelegate::KeyEventCallback
std::function< void(bool)> KeyEventCallback
Definition: window_binding_handler_delegate.h:20
flutter::egl::WindowSurface
Definition: window_surface.h:19
flutter_windows.h
flutter_windows_engine.h
callback
FlutterDesktopBinaryReply callback
Definition: flutter_windows_view_unittests.cc:52
extended
bool extended
Definition: keyboard_key_handler_unittests.cc:118
key
int key
Definition: keyboard_key_handler_unittests.cc:114
character
char32_t character
Definition: keyboard_key_handler_unittests.cc:117
action
int action
Definition: keyboard_key_handler_unittests.cc:116
scancode
int scancode
Definition: keyboard_key_handler_unittests.cc:115
was_down
bool was_down
Definition: keyboard_key_handler_unittests.cc:119
text
std::u16string text
Definition: keyboard_unittests.cc:332
flutter
Definition: accessibility_bridge_windows.cc:11
flutter::WindowStateEvent
WindowStateEvent
An event representing a change in window state that may update the.
Definition: windows_lifecycle_manager.h:24
flutter::FlutterViewId
int64_t FlutterViewId
Definition: accessibility_plugin.h:15
plugin_registrar.h
window_binding_handler.h
window_binding_handler_delegate.h
window_state.h
windows_proc_table.h