| Flutter Linux Embedder |

Classes | Enumerations | Functions | Variables
fl_engine.cc File Reference
`#include "flutter/shell/platform/linux/public/flutter_linux/fl_engine.h"`
`#include <epoxy/egl.h>`
`#include <gmodule.h>`
`#include <cstring>`
`#include "flutter/common/constants.h"`
`#include "flutter/shell/platform/common/engine_switches.h"`
`#include "flutter/shell/platform/embedder/embedder.h"`
`#include "flutter/shell/platform/linux/fl_binary_messenger_private.h"`
`#include "flutter/shell/platform/linux/fl_dart_project_private.h"`
`#include "flutter/shell/platform/linux/fl_display_monitor.h"`
`#include "flutter/shell/platform/linux/fl_engine_private.h"`
`#include "flutter/shell/platform/linux/fl_framebuffer.h"`
`#include "flutter/shell/platform/linux/fl_keyboard_handler.h"`
`#include "flutter/shell/platform/linux/fl_opengl_manager.h"`
`#include "flutter/shell/platform/linux/fl_pixel_buffer_texture_private.h"`
`#include "flutter/shell/platform/linux/fl_platform_handler.h"`
`#include "flutter/shell/platform/linux/fl_plugin_registrar_private.h"`
`#include "flutter/shell/platform/linux/fl_settings_handler.h"`
`#include "flutter/shell/platform/linux/fl_texture_gl_private.h"`
`#include "flutter/shell/platform/linux/fl_texture_registrar_private.h"`
`#include "flutter/shell/platform/linux/fl_windowing_handler.h"`
`#include "flutter/shell/platform/linux/public/flutter_linux/fl_plugin_registry.h"`

Go to the source code of this file.

## Classes
struct | _FlEngine

## Enumerations
enum | { SIGNAL_ON_PRE_ENGINE_RESTART , SIGNAL_UPDATE_SEMANTICS , LAST_SIGNAL }

## Functions
static void | fl_engine_plugin_registry_iface_init (FlPluginRegistryInterface *iface)
| G_DEFINE_TYPE_WITH_CODE (FlEngine, fl_engine, G_TYPE_OBJECT, G_IMPLEMENT_INTERFACE(fl_plugin_registry_get_type(), fl_engine_plugin_registry_iface_init)) enum
static void | parse_locale (const gchar *locale, gchar **language, gchar **territory, gchar **codeset, gchar **modifier)
static void | view_added_cb (const FlutterAddViewResult *result)
static void | view_removed_cb (const FlutterRemoveViewResult *result)
static void | free_locale (FlutterLocale *locale)
static void | setup_locales (FlEngine *self)
static bool | create_opengl_backing_store (FlEngine *self, const FlutterBackingStoreConfig *config, FlutterBackingStore *backing_store_out)
static bool | collect_opengl_backing_store (FlEngine *self, const FlutterBackingStore *backing_store)
static bool | create_software_backing_store (FlEngine *self, const FlutterBackingStoreConfig *config, FlutterBackingStore *backing_store_out)
static bool | collect_software_backing_store (FlEngine *self, const FlutterBackingStore *backing_store)
static bool | compositor_create_backing_store_callback (const FlutterBackingStoreConfig *config, FlutterBackingStore *backing_store_out, void *user_data)
static bool | compositor_collect_backing_store_callback (const FlutterBackingStore *backing_store, void *user_data)
static bool | compositor_present_view_callback (const FlutterPresentViewInfo *info)
static void * | fl_engine_gl_proc_resolver (void *user_data, const char *name)
static bool | fl_engine_gl_make_current (void *user_data)
static bool | fl_engine_gl_clear_current (void *user_data)
static uint32_t | fl_engine_gl_get_fbo (void *user_data)
static bool | fl_engine_gl_make_resource_current (void *user_data)
static bool | fl_engine_gl_external_texture_frame_callback (void *user_data, int64_t texture_id, size_t width, size_t height, FlutterOpenGLTexture *opengl_texture)
static bool | fl_engine_runs_task_on_current_thread (void *user_data)
static void | fl_engine_post_task (FlutterTask task, uint64_t target_time_nanos, void *user_data)
static void | fl_engine_platform_message_cb (const FlutterPlatformMessage *message, void *user_data)
static void | fl_engine_update_semantics_cb (const FlutterSemanticsUpdate2 *update, void *user_data)
static void | setup_keyboard (FlEngine *self)
static void | fl_engine_on_pre_engine_restart_cb (void *user_data)
static void | fl_engine_platform_message_response_cb (const uint8_t *data, size_t data_length, void *user_data)
static FlPluginRegistrar * | fl_engine_get_registrar_for_plugin (FlPluginRegistry *registry, const gchar *name)
static void | fl_engine_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
static void | fl_engine_dispose (GObject *object)
static void | fl_engine_class_init (FlEngineClass *klass)
static void | fl_engine_init (FlEngine *self)
static FlEngine * | fl_engine_new_full (FlDartProject *project, FlBinaryMessenger *binary_messenger)
FlEngine * | fl_engine_for_id (int64_t id)
G_MODULE_EXPORT FlEngine * | fl_engine_new (FlDartProject *project)
FlEngine * | fl_engine_new_with_binary_messenger (FlBinaryMessenger *binary_messenger)
G_MODULE_EXPORT FlEngine * | fl_engine_new_headless (FlDartProject *project)
FlutterRendererType | fl_engine_get_renderer_type (FlEngine *self)
FlOpenGLManager * | fl_engine_get_opengl_manager (FlEngine *self)
FlDisplayMonitor * | fl_engine_get_display_monitor (FlEngine *self)
gboolean | fl_engine_start (FlEngine *self, GError **error)
FlutterEngineProcTable * | fl_engine_get_embedder_api (FlEngine *self)
void | fl_engine_notify_display_update (FlEngine *self, const FlutterEngineDisplay *displays, size_t displays_length)
void | fl_engine_set_implicit_view (FlEngine *self, FlRenderable *renderable)
FlutterViewId | fl_engine_add_view (FlEngine *self, FlRenderable *renderable, size_t width, size_t height, double pixel_ratio, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data)
gboolean | fl_engine_add_view_finish (FlEngine *self, GAsyncResult *result, GError **error)
FlRenderable * | fl_engine_get_renderable (FlEngine *self, FlutterViewId view_id)
void | fl_engine_remove_view (FlEngine *self, FlutterViewId view_id, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data)
gboolean | fl_engine_remove_view_finish (FlEngine *self, GAsyncResult *result, GError **error)
void | fl_engine_set_platform_message_handler (FlEngine *self, FlEnginePlatformMessageHandler handler, gpointer user_data, GDestroyNotify destroy_notify)
gboolean | fl_engine_send_platform_message_response (FlEngine *self, const FlutterPlatformMessageResponseHandle *handle, GBytes *response, GError **error)
void | fl_engine_send_platform_message (FlEngine *self, const gchar *channel, GBytes *message, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data)
GBytes * | fl_engine_send_platform_message_finish (FlEngine *self, GAsyncResult *result, GError **error)
void | fl_engine_send_window_metrics_event (FlEngine *self, FlutterEngineDisplayId display_id, FlutterViewId view_id, size_t width, size_t height, double pixel_ratio)
void | fl_engine_send_mouse_pointer_event (FlEngine *self, FlutterViewId view_id, FlutterPointerPhase phase, size_t timestamp, double x, double y, FlutterPointerDeviceKind device_kind, double scroll_delta_x, double scroll_delta_y, int64_t buttons)
void | fl_engine_send_touch_up_event (FlEngine *self, FlutterViewId view_id, size_t timestamp, double x, double y, int32_t device)
void | fl_engine_send_touch_down_event (FlEngine *self, FlutterViewId view_id, size_t timestamp, double x, double y, int32_t device)
void | fl_engine_send_touch_move_event (FlEngine *self, FlutterViewId view_id, size_t timestamp, double x, double y, int32_t device)
void | fl_engine_send_touch_add_event (FlEngine *self, FlutterViewId view_id, size_t timestamp, double x, double y, int32_t device)
void | fl_engine_send_touch_remove_event (FlEngine *self, FlutterViewId view_id, size_t timestamp, double x, double y, int32_t device)
void | fl_engine_send_pointer_pan_zoom_event (FlEngine *self, FlutterViewId view_id, size_t timestamp, double x, double y, FlutterPointerPhase phase, double pan_x, double pan_y, double scale, double rotation)
static void | send_key_event_cb (bool handled, void *user_data)
void | fl_engine_send_key_event (FlEngine *self, const FlutterKeyEvent *event, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data)
gboolean | fl_engine_send_key_event_finish (FlEngine *self, GAsyncResult *result, gboolean *handled, GError **error)
void | fl_engine_dispatch_semantics_action (FlEngine *self, FlutterViewId view_id, uint64_t node_id, FlutterSemanticsAction action, GBytes *data)
gboolean | fl_engine_mark_texture_frame_available (FlEngine *self, int64_t texture_id)
gboolean | fl_engine_register_external_texture (FlEngine *self, int64_t texture_id)
gboolean | fl_engine_unregister_external_texture (FlEngine *self, int64_t texture_id)
G_MODULE_EXPORT FlBinaryMessenger * | fl_engine_get_binary_messenger (FlEngine *self)
FlTaskRunner * | fl_engine_get_task_runner (FlEngine *self)
void | fl_engine_execute_task (FlEngine *self, FlutterTask *task)
G_MODULE_EXPORT FlTextureRegistrar * | fl_engine_get_texture_registrar (FlEngine *self)
void | fl_engine_update_accessibility_features (FlEngine *self, int32_t flags)
void | fl_engine_request_app_exit (FlEngine *self)
FlWindowingHandler * | fl_engine_get_windowing_handler (FlEngine *self)
FlKeyboardManager * | fl_engine_get_keyboard_manager (FlEngine *self)
FlTextInputHandler * | fl_engine_get_text_input_handler (FlEngine *self)
FlMouseCursorHandler * | fl_engine_get_mouse_cursor_handler (FlEngine *self)

## Variables
static constexpr size_t | kPlatformTaskRunnerIdentifier = 1
static constexpr int32_t | kMousePointerDeviceId = 0
static constexpr int32_t | kPointerPanZoomDeviceId = 1
static guint | fl_engine_signals [LAST_SIGNAL]

## Enumeration Type Documentation

## ◆ anonymous enum

anonymous enum

Enumerator
SIGNAL_ON_PRE_ENGINE_RESTART |
SIGNAL_UPDATE_SEMANTICS |
LAST_SIGNAL |

Definition at line 114 of file fl_engine.cc.

114 { SIGNAL_ON_PRE_ENGINE_RESTART, SIGNAL_UPDATE_SEMANTICS, LAST_SIGNAL };
LAST_SIGNAL
@ LAST_SIGNAL
Definition: fl_engine.cc:114
SIGNAL_UPDATE_SEMANTICS
@ SIGNAL_UPDATE_SEMANTICS
Definition: fl_engine.cc:114
SIGNAL_ON_PRE_ENGINE_RESTART
@ SIGNAL_ON_PRE_ENGINE_RESTART
Definition: fl_engine.cc:114

## Function Documentation

## ◆ collect_opengl_backing_store()

static bool collect_opengl_backing_store | ( | FlEngine * | self,
|  | const FlutterBackingStore * | backing_store
| ) |  |
| static

Definition at line 287 of file fl_engine.cc.

289 {
290 if (!fl_opengl_manager_make_current(self->opengl_manager)) {
291 return false;
292 }
293
294 // OpenGL context is required when destroying #FlFramebuffer.
295 g_object_unref(backing_store->open_gl.framebuffer.user_data);
296 return true;
297 }
fl_opengl_manager_make_current
gboolean fl_opengl_manager_make_current(FlOpenGLManager *self)
Definition: fl_opengl_manager.cc:76

References fl_opengl_manager_make_current().

Referenced by compositor_collect_backing_store_callback().

## ◆ collect_software_backing_store()

static bool collect_software_backing_store | ( | FlEngine * | self,
|  | const FlutterBackingStore * | backing_store
| ) |  |
| static

Definition at line 323 of file fl_engine.cc.

325 {
326 free(const_cast<void*>(backing_store->software.allocation));
327 return true;
328 }

Referenced by compositor_collect_backing_store_callback().

## ◆ compositor_collect_backing_store_callback()

static bool compositor_collect_backing_store_callback | ( | const FlutterBackingStore * | backing_store,
|  | void * | user_data
| ) |  |
| static

Definition at line 347 of file fl_engine.cc.

349 {
350 FlEngine* self = static_cast<FlEngine*>(user_data);
351 switch (self->renderer_type) {
352 case kOpenGL:
353 return collect_opengl_backing_store(self, backing_store);
354 case kSoftware:
355 return collect_software_backing_store(self, backing_store);
356 default:
357 return false;
358 }
359 }
collect_opengl_backing_store
static bool collect_opengl_backing_store(FlEngine *self, const FlutterBackingStore *backing_store)
Definition: fl_engine.cc:287
collect_software_backing_store
static bool collect_software_backing_store(FlEngine *self, const FlutterBackingStore *backing_store)
Definition: fl_engine.cc:323
user_data
G_BEGIN_DECLS G_MODULE_EXPORT FlValue gpointer user_data
Definition: fl_event_channel.h:90

References collect_opengl_backing_store(), collect_software_backing_store(), and user_data.

Referenced by fl_engine_start().

## ◆ compositor_create_backing_store_callback()

static bool compositor_create_backing_store_callback | ( | const FlutterBackingStoreConfig * | config,
|  | FlutterBackingStore * | backing_store_out,
|  | void * | user_data
| ) |  |
| static

Definition at line 331 of file fl_engine.cc.

334 {
335 FlEngine* self = static_cast<FlEngine*>(user_data);
336 switch (self->renderer_type) {
337 case kOpenGL:
338 return create_opengl_backing_store(self, config, backing_store_out);
339 case kSoftware:
340 return create_software_backing_store(self, config, backing_store_out);
341 default:
342 return false;
343 }
344 }
create_opengl_backing_store
static bool create_opengl_backing_store(FlEngine *self, const FlutterBackingStoreConfig *config, FlutterBackingStore *backing_store_out)
Definition: fl_engine.cc:250
create_software_backing_store
static bool create_software_backing_store(FlEngine *self, const FlutterBackingStoreConfig *config, FlutterBackingStore *backing_store_out)
Definition: fl_engine.cc:299

References create_opengl_backing_store(), create_software_backing_store(), and user_data.

Referenced by fl_engine_start().

## ◆ compositor_present_view_callback()

static bool compositor_present_view_callback | ( | const FlutterPresentViewInfo * | info | ) |
| static

Definition at line 362 of file fl_engine.cc.

363 {
364 FlEngine* self = static_cast<FlEngine*>(info->user_data);
365
366 GWeakRef* ref = static_cast<GWeakRef*>(g_hash_table_lookup(
367 self->renderables_by_view_id, GINT_TO_POINTER(info->view_id)));
368 if (ref == nullptr) {
369 return true;
370 }
371 g_autoptr(FlRenderable) renderable = FL_RENDERABLE(g_weak_ref_get(ref));
372 if (renderable == nullptr) {
373 return true;
374 }
375
376 fl_renderable_present_layers(renderable, info->layers, info->layers_count);
377 return true;
378 }
g_autoptr
g_autoptr(GMutexLocker) locker
fl_renderable_present_layers
void fl_renderable_present_layers(FlRenderable *self, const FlutterLayer **layers, size_t layers_count)
Definition: fl_renderable.cc:11

References fl_renderable_present_layers(), and g_autoptr().

Referenced by fl_engine_start().

## ◆ create_opengl_backing_store()

static bool create_opengl_backing_store | ( | FlEngine * | self,
|  | const FlutterBackingStoreConfig * | config,
|  | FlutterBackingStore * | backing_store_out
| ) |  |
| static

Definition at line 250 of file fl_engine.cc.

253 {
254 if (!fl_opengl_manager_make_current(self->opengl_manager)) {
255 return false;
256 }
257
258 GLint sized_format = GL_RGBA8;
259 GLint general_format = GL_RGBA;
260 if (epoxy_has_gl_extension("GL_EXT_texture_format_BGRA8888")) {
261 sized_format = GL_BGRA8_EXT;
262 general_format = GL_BGRA_EXT;
263 }
264
265 FlFramebuffer* framebuffer = fl_framebuffer_new(
266 general_format, config->size.width, config->size.height, FALSE);
267 if (!framebuffer) {
268 g_warning("Failed to create backing store");
269 return false;
270 }
271
272 backing_store_out->type = kFlutterBackingStoreTypeOpenGL;
273 backing_store_out->open_gl.type = kFlutterOpenGLTargetTypeFramebuffer;
274 backing_store_out->open_gl.framebuffer.user_data = framebuffer;
275 backing_store_out->open_gl.framebuffer.name =
276 fl_framebuffer_get_id(framebuffer);
277 backing_store_out->open_gl.framebuffer.target = sized_format;
278 backing_store_out->open_gl.framebuffer.destruction_callback = [](void* p) {
279 // Backing store destroyed in fl_compositor_opengl_collect_backing_store(),
280 // set on FlutterCompositor.collect_backing_store_callback during engine
281 // start.
282 };
283
284 return true;
285 }
fl_framebuffer_get_id
GLuint fl_framebuffer_get_id(FlFramebuffer *self)
Definition: fl_framebuffer.cc:148
fl_framebuffer_new
FlFramebuffer * fl_framebuffer_new(GLint format, size_t width, size_t height, gboolean shareable)
Definition: fl_framebuffer.cc:69

References fl_framebuffer_get_id(), fl_framebuffer_new(), and fl_opengl_manager_make_current().

Referenced by compositor_create_backing_store_callback().

## ◆ create_software_backing_store()

static bool create_software_backing_store | ( | FlEngine * | self,
|  | const FlutterBackingStoreConfig * | config,
|  | FlutterBackingStore * | backing_store_out
| ) |  |
| static

Definition at line 299 of file fl_engine.cc.

302 {
303 size_t allocation_length = config->size.width * config->size.height * 4;
304 uint8_t* allocation = static_cast<uint8_t*>(malloc(allocation_length));
305 if (allocation == nullptr) {
306 return false;
307 }
308
309 backing_store_out->type = kFlutterBackingStoreTypeSoftware;
310 backing_store_out->software.allocation = allocation;
311 backing_store_out->software.height = config->size.height;
312 backing_store_out->software.row_bytes = config->size.width * 4;
313 backing_store_out->software.user_data = nullptr;
314 backing_store_out->software.destruction_callback = [](void* p) {
315 // Backing store destroyed in
316 // fl_compositor_software_collect_backing_store(), set on
317 // FlutterCompositor.collect_backing_store_callback during engine start.
318 };
319
320 return true;
321 }

Referenced by compositor_create_backing_store_callback().

## ◆ fl_engine_add_view()

FlutterViewId fl_engine_add_view | ( | FlEngine * | engine,
|  | FlRenderable * | renderable,
|  | size_t | width,
|  | size_t | height,
|  | double | pixel_ratio,
|  | GCancellable * | cancellable,
|  | GAsyncReadyCallback | callback,
|  | gpointer | user_data
| ) |  |

fl_engine_add_view: @engine: an #FlEngine. @renderable: the object that will render this view. @width: width of view in pixels. @height: height of view in pixels. @pixel_ratio: scale factor for view. @cancellable: (allow-none): a #GCancellable or NULL. @callback: (scope async): a #GAsyncReadyCallback to call when the view is added. @user_data: (closure): user data to pass to @callback.

Asynchronously add a new view. The returned view ID should not be used until this function completes.

Returns: the ID for the view.

Definition at line 884 of file fl_engine.cc.

891 {
892 g_return_val_if_fail(FL_IS_ENGINE(self), -1);
893
894 g_autoptr(GTask) task = g_task_new(self, cancellable, callback, user_data);
895
896 FlutterViewId view_id = self->next_view_id;
897 self->next_view_id++;
898
899 GWeakRef* ref = g_new(GWeakRef, 1);
900 g_weak_ref_init(ref, G_OBJECT(renderable));
901 g_hash_table_insert(self->renderables_by_view_id, GINT_TO_POINTER(view_id),
902 ref);
903
904 // We don't know which display this view will open on, so set to zero and this
905 // will be updated in a following FlutterWindowMetricsEvent
906 FlutterEngineDisplayId display_id = 0;
907
908 FlutterWindowMetricsEvent metrics = {};
909 metrics.struct_size = sizeof(FlutterWindowMetricsEvent);
910 metrics.width = width;
911 metrics.height = height;
912 metrics.pixel_ratio = pixel_ratio;
913 metrics.display_id = display_id;
914 metrics.view_id = view_id;
915 FlutterAddViewInfo info;
916 info.struct_size = sizeof(FlutterAddViewInfo);
917 info.view_id = view_id;
918 info.view_metrics = &metrics;
919 info.user_data = g_object_ref(task);
920 info.add_view_callback = view_added_cb;
921 FlutterEngineResult result = self->embedder_api.AddView(self->engine, &info);
922 if (result != kSuccess) {
923 g_task_return_new_error(task, fl_engine_error_quark(),
924 FL_ENGINE_ERROR_FAILED, "AddView returned %d",
925 result);
926 // This would have been done in the callback, but that won't occur now.
927 g_object_unref(task);
928 }
929
930 return view_id;
931 }
height
self height
Definition: fl_compositor_software.cc:43
width
self width
Definition: fl_compositor_software.cc:42
view_added_cb
static void view_added_cb(const FlutterAddViewResult *result)
Definition: fl_engine.cc:171
fl_engine_error_quark
GQuark fl_engine_error_quark(void) G_GNUC_CONST
FL_ENGINE_ERROR_FAILED
@ FL_ENGINE_ERROR_FAILED
Definition: fl_engine_private.h:30
view_id
G_BEGIN_DECLS FlutterViewId view_id
Definition: fl_view_accessible.h:49

References FL_ENGINE_ERROR_FAILED, fl_engine_error_quark(), g_autoptr(), height, user_data, view_added_cb(), view_id, and width.

Referenced by fl_view_new_for_engine(), and TEST().

## ◆ fl_engine_add_view_finish()

gboolean fl_engine_add_view_finish | ( | FlEngine * | engine,
|  | GAsyncResult * | result,
|  | GError ** | error
| ) |  |

fl_engine_add_view_finish: @engine: an #FlEngine.

Returns
  : a #GAsyncResult. @error: (allow-none): #GError location to store the error occurring, or NULL to ignore.

Completes request started with fl_engine_add_view().

Returns: TRUE on success.

Definition at line 933 of file fl_engine.cc.

935 {
936 g_return_val_if_fail(FL_IS_ENGINE(self), FALSE);
937 return g_task_propagate_boolean(G_TASK(result), error);
938 }
error
const uint8_t uint32_t uint32_t GError ** error
Definition: fl_pixel_buffer_texture_test.cc:40

References error.

Referenced by add_view_cb(), add_view_engine_error_cb(), add_view_error_cb(), and view_added_cb().

## ◆ fl_engine_class_init()

static void fl_engine_class_init | ( | FlEngineClass * | klass | ) |
| static

Definition at line 604 of file fl_engine.cc.

604 {
605 G_OBJECT_CLASS(klass)->dispose = fl_engine_dispose;
606 G_OBJECT_CLASS(klass)->set_property = fl_engine_set_property;
607
608 g_object_class_install_property(
609 G_OBJECT_CLASS(klass), PROP_BINARY_MESSENGER,
610 g_param_spec_object(
611 "binary-messenger", "messenger", "Binary messenger",
612 fl_binary_messenger_get_type(),
613 static_cast<GParamFlags>(G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY |
614 G_PARAM_STATIC_STRINGS)));
615
616 fl_engine_signals[SIGNAL_ON_PRE_ENGINE_RESTART] = g_signal_new(
617 "on-pre-engine-restart", fl_engine_get_type(), G_SIGNAL_RUN_LAST, 0,
618 nullptr, nullptr, nullptr, G_TYPE_NONE, 0);
619 fl_engine_signals[SIGNAL_UPDATE_SEMANTICS] = g_signal_new(
620 "update-semantics", fl_engine_get_type(), G_SIGNAL_RUN_LAST, 0, nullptr,
621 nullptr, nullptr, G_TYPE_NONE, 1, G_TYPE_POINTER);
622 }
fl_engine_dispose
static void fl_engine_dispose(GObject *object)
Definition: fl_engine.cc:563
fl_engine_signals
static guint fl_engine_signals[LAST_SIGNAL]
Definition: fl_engine.cc:116
fl_engine_set_property
static void fl_engine_set_property(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
Definition: fl_engine.cc:547

References fl_engine_dispose(), fl_engine_set_property(), fl_engine_signals, SIGNAL_ON_PRE_ENGINE_RESTART, and SIGNAL_UPDATE_SEMANTICS.

## ◆ fl_engine_dispatch_semantics_action()

void fl_engine_dispatch_semantics_action | ( | FlEngine * | engine,
|  | FlutterViewId | view_id,
|  | uint64_t | node_id,
|  | FlutterSemanticsAction | action,
|  | GBytes * | data
| ) |  |

fl_engine_dispatch_semantics_action: @engine: an #FlEngine. @view_id: the view that the event occured on. @node_id: the semantics action identifier. @action: the action being dispatched. @data: (allow-none): data associated with the action.

Definition at line 1366 of file fl_engine.cc.

1370 {
1371 g_return_if_fail(FL_IS_ENGINE(self));
1372
1373 if (self->engine == nullptr) {
1374 return;
1375 }
1376
1377 const uint8_t* action_data = nullptr;
1378 size_t action_data_length = 0;
1379 if (data != nullptr) {
1380 action_data = static_cast<const uint8_t*>(
1381 g_bytes_get_data(data, &action_data_length));
1382 }
1383
1384 FlutterSendSemanticsActionInfo info;
1385 info.struct_size = sizeof(FlutterSendSemanticsActionInfo);
1386 info.view_id = view_id;
1387 info.node_id = node_id;
1388 info.action = action;
1389 info.data = action_data;
1390 info.data_length = action_data_length;
1391 self->embedder_api.SendSemanticsAction(self->engine, &info);
1392 }
action
FlutterSemanticsAction action
Definition: fl_accessible_node.cc:86

References action, and view_id.

Referenced by fl_accessible_node_perform_action_impl(), and TEST().

## ◆ fl_engine_dispose()

static void fl_engine_dispose | ( | GObject * | object | ) |
| static

Definition at line 563 of file fl_engine.cc.

563 {
564 FlEngine* self = FL_ENGINE(object);
565
566 if (self->engine != nullptr) {
567 self->embedder_api.Shutdown(self->engine);
568 self->engine = nullptr;
569 }
570
571 if (self->aot_data != nullptr) {
572 self->embedder_api.CollectAOTData(self->aot_data);
573 self->aot_data = nullptr;
574 }
575
576 fl_binary_messenger_shutdown(self->binary_messenger);
577 fl_texture_registrar_shutdown(self->texture_registrar);
578
579 g_clear_object(&self->project);
580 g_clear_object(&self->display_monitor);
581 g_clear_object(&self->opengl_manager);
582 g_clear_object(&self->texture_registrar);
583 g_clear_object(&self->binary_messenger);
584 g_clear_object(&self->settings_handler);
585 g_clear_object(&self->platform_handler);
586 g_clear_object(&self->windowing_handler);
587 g_clear_object(&self->keyboard_manager);
588 g_clear_object(&self->text_input_handler);
589 g_clear_object(&self->keyboard_handler);
590 g_clear_object(&self->mouse_cursor_handler);
591 g_clear_object(&self->task_runner);
592 g_clear_pointer(&self->renderables_by_view_id, g_hash_table_unref);
593
594 if (self->platform_message_handler_destroy_notify) {
595 self->platform_message_handler_destroy_notify(
596 self->platform_message_handler_data);
597 }
598 self->platform_message_handler_data = nullptr;
599 self->platform_message_handler_destroy_notify = nullptr;
600
601 G_OBJECT_CLASS(fl_engine_parent_class)->dispose(object);
602 }
fl_binary_messenger_shutdown
void fl_binary_messenger_shutdown(FlBinaryMessenger *self)
Definition: fl_binary_messenger.cc:500
fl_texture_registrar_shutdown
void fl_texture_registrar_shutdown(FlTextureRegistrar *self)
Definition: fl_texture_registrar.cc:215

References fl_binary_messenger_shutdown(), and fl_texture_registrar_shutdown().

Referenced by fl_engine_class_init().

## ◆ fl_engine_execute_task()

void fl_engine_execute_task | ( | FlEngine * | engine,
|  | FlutterTask * | task
| ) |  |

fl_engine_execute_task: @engine: an #FlEngine. @task: a #FlutterTask to execute.

Executes given Flutter task.

Definition at line 1426 of file fl_engine.cc.

1426 {
1427 g_return_if_fail(FL_IS_ENGINE(self));
1428 self->embedder_api.RunTask(self->engine, task);
1429 }

Referenced by fl_task_runner_process_expired_tasks_locked().

## ◆ fl_engine_for_id()

FlEngine* fl_engine_for_id | ( | int64_t | handle | ) |

fl_engine_for_id: @handle: an engine identifier obtained through PlatformDispatcher.instance.engineId.

Returns Flutter engine associated with the identifier. The identifier must be valid and for a running engine otherwise the behavior is undefined. Must be called from the main thread.

Returns: a #FlEngine or NULL.

Definition at line 687 of file fl_engine.cc.

687 {
688 void* engine = reinterpret_cast<void*>(id);
689 g_return_val_if_fail(FL_IS_ENGINE(engine), nullptr);
690 return FL_ENGINE(engine);
691 }
id
int64_t id
Definition: fl_pixel_buffer_texture.cc:28

References id.

Referenced by TEST().

## ◆ fl_engine_get_binary_messenger()

G_MODULE_EXPORT FlBinaryMessenger* fl_engine_get_binary_messenger | ( | FlEngine * | engine | ) |

fl_engine_get_binary_messenger: @engine: an #FlEngine.

Gets the messenger to communicate with this engine.

Returns: an #FlBinaryMessenger.

Definition at line 1415 of file fl_engine.cc.

1416 {
1417 g_return_val_if_fail(FL_IS_ENGINE(self), nullptr);
1418 return self->binary_messenger;
1419 }

Referenced by fl_keyboard_manager_new(), fl_settings_handler_new(), fl_view_get_registrar_for_plugin(), fl_windowing_handler_new(), realize_cb(), and TEST().

## ◆ fl_engine_get_display_monitor()

FlDisplayMonitor* fl_engine_get_display_monitor | ( | FlEngine * | engine | ) |

fl_engine_get_display_monitor: @engine: an #FlEngine.

Gets the display monitor used by this engine.

Returns: an #FlDisplayMonitor.

Definition at line 717 of file fl_engine.cc.

717 {
718 g_return_val_if_fail(FL_IS_ENGINE(self), nullptr);
719 return self->display_monitor;
720 }

Referenced by handle_geometry_changed(), and TEST().

## ◆ fl_engine_get_embedder_api()

FlutterEngineProcTable* fl_engine_get_embedder_api | ( | FlEngine * | engine | ) |

fl_engine_get_embedder_api: @engine: an #FlEngine.

Gets the embedder API proc table, allowing modificiations for unit testing.

Returns: a mutable pointer to the embedder API proc table.

Definition at line 860 of file fl_engine.cc.

860 {
861 return &(self->embedder_api);
862 }

Referenced by TEST().

## ◆ fl_engine_get_keyboard_manager()

FlKeyboardManager* fl_engine_get_keyboard_manager | ( | FlEngine * | engine | ) |

fl_engine_get_keyboard_manager: @engine: an #FlEngine.

Gets the keyboard manager used by this engine.

Returns: an #FlKeyboardManager.

Definition at line 1458 of file fl_engine.cc.

1458 {
1459 g_return_val_if_fail(FL_IS_ENGINE(self), nullptr);
1460 return self->keyboard_manager;
1461 }

Referenced by handle_key_event(), sync_modifier_if_needed(), and TEST().

## ◆ fl_engine_get_mouse_cursor_handler()

FlMouseCursorHandler* fl_engine_get_mouse_cursor_handler | ( | FlEngine * | engine | ) |

fl_engine_get_mouse_cursor_handler: @engine: an #FlEngine.

Gets the mouse cursor handler used by this engine.

Returns: an #FlMouseCursorHandler.

Definition at line 1468 of file fl_engine.cc.

1468 {
1469 g_return_val_if_fail(FL_IS_ENGINE(self), nullptr);
1470 return self->mouse_cursor_handler;
1471 }

Referenced by cursor_changed_cb(), fl_view_dispose(), setup_cursor(), and TEST().

## ◆ fl_engine_get_opengl_manager()

FlOpenGLManager* fl_engine_get_opengl_manager | ( | FlEngine * | engine | ) |

fl_engine_get_opengl_manager: @engine: an #FlEngine.

Gets the OpenGL manager used by this engine.

Returns: an #FlOpenGLManager.

Definition at line 712 of file fl_engine.cc.

712 {
713 g_return_val_if_fail(FL_IS_ENGINE(self), nullptr);
714 return self->opengl_manager;
715 }

Referenced by realize_cb(), and setup_opengl().

## ◆ fl_engine_get_registrar_for_plugin()

static FlPluginRegistrar* fl_engine_get_registrar_for_plugin | ( | FlPluginRegistry * | registry,
|  | const gchar * | name
| ) |  |
| static

Definition at line 533 of file fl_engine.cc.

535 {
536 FlEngine* self = FL_ENGINE(registry);
537
538 return fl_plugin_registrar_new(nullptr, self->binary_messenger,
539 self->texture_registrar);
540 }
fl_plugin_registrar_new
FlPluginRegistrar * fl_plugin_registrar_new(FlView *view, FlBinaryMessenger *messenger, FlTextureRegistrar *texture_registrar)
Definition: fl_plugin_registrar.cc:84

References fl_plugin_registrar_new().

Referenced by fl_engine_plugin_registry_iface_init().

## ◆ fl_engine_get_renderable()

FlRenderable* fl_engine_get_renderable | ( | FlEngine * | engine,
|  | FlutterViewId | view_id
| ) |  |

fl_engine_get_renderable: @engine: an #FlEngine. @view_id: ID to check.

Gets the renderable associated with the give view ID.

Returns: (transfer full): a reference to an #FlRenderable or NULL if none for this ID.

Definition at line 940 of file fl_engine.cc.

940 {
941 g_return_val_if_fail(FL_IS_ENGINE(self), nullptr);
942
943 GWeakRef* ref = static_cast<GWeakRef*>(g_hash_table_lookup(
944 self->renderables_by_view_id, GINT_TO_POINTER(view_id)));
945 return FL_RENDERABLE(g_weak_ref_get(ref));
946 }

References view_id.

## ◆ fl_engine_get_renderer_type()

FlutterRendererType fl_engine_get_renderer_type | ( | FlEngine * | engine | ) |

fl_engine_get_renderer_type: @engine: an #FlEngine.

Gets the rendering type used by this engine.

Returns: type of rendering used.

Definition at line 707 of file fl_engine.cc.

707 {
708 g_return_val_if_fail(FL_IS_ENGINE(self), static_cast<FlutterRendererType>(0));
709 return self->renderer_type;
710 }

Referenced by realize_cb().

## ◆ fl_engine_get_task_runner()

FlTaskRunner* fl_engine_get_task_runner | ( | FlEngine * | engine | ) |

fl_engine_get_task_runner: @engine: an #FlEngine.

Returns
  : a #FlTaskRunner.

Returns: task runner responsible for scheduling Flutter tasks.

Definition at line 1421 of file fl_engine.cc.

1421 {
1422 g_return_val_if_fail(FL_IS_ENGINE(self), nullptr);
1423 return self->task_runner;
1424 }

Referenced by setup_opengl(), setup_software(), and TEST().

## ◆ fl_engine_get_text_input_handler()

FlTextInputHandler* fl_engine_get_text_input_handler | ( | FlEngine * | engine | ) |

fl_engine_get_text_input_handler: @engine: an #FlEngine.

Gets the text input handler used by this engine.

Returns: an #FlTextInputHandler.

Definition at line 1463 of file fl_engine.cc.

1463 {
1464 g_return_val_if_fail(FL_IS_ENGINE(self), nullptr);
1465 return self->text_input_handler;
1466 }

Referenced by fl_view_focus_in_event(), and handle_key_event().

## ◆ fl_engine_get_texture_registrar()

G_MODULE_EXPORT FlTextureRegistrar* fl_engine_get_texture_registrar | ( | FlEngine * | engine | ) |

fl_engine_get_texture_registrar: @engine: an #FlEngine.

Gets the texture registrar for registering textures.

Returns: an #FlTextureRegistrar.

Definition at line 1431 of file fl_engine.cc.

1432 {
1433 g_return_val_if_fail(FL_IS_ENGINE(self), nullptr);
1434 return self->texture_registrar;
1435 }

Referenced by fl_view_get_registrar_for_plugin().

## ◆ fl_engine_get_windowing_handler()

FlWindowingHandler* fl_engine_get_windowing_handler | ( | FlEngine * | engine | ) |

fl_engine_get_windowing_handler: @engine: an #FlEngine.

Gets the windowing handler used by this engine.

Returns: an #FlWindowingHandler.

Definition at line 1453 of file fl_engine.cc.

1453 {
1454 g_return_val_if_fail(FL_IS_ENGINE(self), nullptr);
1455 return self->windowing_handler;
1456 }

Referenced by fl_application_activate(), and TEST().

## ◆ fl_engine_gl_clear_current()

static bool fl_engine_gl_clear_current | ( | void * | user_data | ) |
| static

Definition at line 391 of file fl_engine.cc.

391 {
392 FlEngine* self = static_cast<FlEngine*>(user_data);
393 return fl_opengl_manager_clear_current(self->opengl_manager);
394 }
fl_opengl_manager_clear_current
gboolean fl_opengl_manager_clear_current(FlOpenGLManager *self)
Definition: fl_opengl_manager.cc:86

References fl_opengl_manager_clear_current(), and user_data.

Referenced by fl_engine_start().

## ◆ fl_engine_gl_external_texture_frame_callback()

static bool fl_engine_gl_external_texture_frame_callback | ( | void * | user_data,
|  | int64_t | texture_id,
|  | size_t | width,
|  | size_t | height,
|  | FlutterOpenGLTexture * | opengl_texture
| ) |  |
| static

Definition at line 407 of file fl_engine.cc.

412 {
413 FlEngine* self = static_cast<FlEngine*>(user_data);
414 if (!self->texture_registrar) {
415 return false;
416 }
417
418 FlTexture* texture =
419 fl_texture_registrar_lookup_texture(self->texture_registrar, texture_id);
420 if (texture == nullptr) {
421 g_warning("Unable to find texture %" G_GINT64_FORMAT, texture_id);
422 return false;
423 }
424
425 gboolean result;
426 g_autoptr(GError) error = nullptr;
427 if (FL_IS_TEXTURE_GL(texture)) {
428 result = fl_texture_gl_populate(FL_TEXTURE_GL(texture), width, height,
429 opengl_texture, &error);
430 } else if (FL_IS_PIXEL_BUFFER_TEXTURE(texture)) {
431 result =
432 fl_pixel_buffer_texture_populate(FL_PIXEL_BUFFER_TEXTURE(texture),
433 width, height, opengl_texture, &error);
434 } else {
435 g_warning("Unsupported texture type %" G_GINT64_FORMAT, texture_id);
436 return false;
437 }
438
439 if (!result) {
440 g_warning("%s", error->message);
441 return false;
442 }
443
444 return true;
445 }
fl_pixel_buffer_texture_populate
gboolean fl_pixel_buffer_texture_populate(FlPixelBufferTexture *texture, uint32_t width, uint32_t height, FlutterOpenGLTexture *opengl_texture, GError **error)
Definition: fl_pixel_buffer_texture.cc:71
fl_texture_gl_populate
gboolean fl_texture_gl_populate(FlTextureGL *self, uint32_t width, uint32_t height, FlutterOpenGLTexture *opengl_texture, GError **error)
Definition: fl_texture_gl.cc:50
fl_texture_registrar_lookup_texture
FlTexture * fl_texture_registrar_lookup_texture(FlTextureRegistrar *self, int64_t texture_id)
Definition: fl_texture_registrar.cc:190
texture_id
int64_t texture_id
Definition: texture_registrar_unittests.cc:24

References error, fl_pixel_buffer_texture_populate(), fl_texture_gl_populate(), fl_texture_registrar_lookup_texture(), g_autoptr(), height, texture_id, user_data, and width.

Referenced by fl_engine_start().

## ◆ fl_engine_gl_get_fbo()

static uint32_t fl_engine_gl_get_fbo | ( | void * | user_data | ) |
| static

Definition at line 396 of file fl_engine.cc.

396 {
397 // There is only one frame buffer object - always return that.
398 return 0;
399 }

Referenced by fl_engine_start().

## ◆ fl_engine_gl_make_current()

static bool fl_engine_gl_make_current | ( | void * | user_data | ) |
| static

Definition at line 386 of file fl_engine.cc.

386 {
387 FlEngine* self = static_cast<FlEngine*>(user_data);
388 return fl_opengl_manager_make_current(self->opengl_manager);
389 }

References fl_opengl_manager_make_current(), and user_data.

Referenced by fl_engine_start().

## ◆ fl_engine_gl_make_resource_current()

static bool fl_engine_gl_make_resource_current | ( | void * | user_data | ) |
| static

Definition at line 401 of file fl_engine.cc.

401 {
402 FlEngine* self = static_cast<FlEngine*>(user_data);
403 return fl_opengl_manager_make_resource_current(self->opengl_manager);
404 }
fl_opengl_manager_make_resource_current
gboolean fl_opengl_manager_make_resource_current(FlOpenGLManager *self)
Definition: fl_opengl_manager.cc:81

References fl_opengl_manager_make_resource_current(), and user_data.

Referenced by fl_engine_start().

## ◆ fl_engine_gl_proc_resolver()

static void* fl_engine_gl_proc_resolver | ( | void * | user_data,
|  | const char * | name
| ) |  |
| static

Definition at line 382 of file fl_engine.cc.

382 {
383 return reinterpret_cast<void*>(eglGetProcAddress(name));
384 }

Referenced by fl_engine_start().

## ◆ fl_engine_init()

static void fl_engine_init | ( | FlEngine * | self | ) |
| static

Definition at line 624 of file fl_engine.cc.

624 {
625 self->thread = g_thread_self();
626
627 self->embedder_api.struct_size = sizeof(FlutterEngineProcTable);
628 if (FlutterEngineGetProcAddresses(&self->embedder_api) != kSuccess) {
629 g_warning("Failed get get engine function pointers");
630 }
631
632 self->opengl_manager = fl_opengl_manager_new();
633
634 self->display_monitor =
635 fl_display_monitor_new(self, gdk_display_get_default());
636 self->task_runner = fl_task_runner_new(self);
637
638 // Implicit view is 0, so start at 1.
639 self->next_view_id = 1;
640 self->renderables_by_view_id = g_hash_table_new_full(
641 g_direct_hash, g_direct_equal, nullptr, [](gpointer value) {
642 GWeakRef* ref = static_cast<GWeakRef*>(value);
643 g_weak_ref_clear(ref);
644 free(ref);
645 });
646
647 self->texture_registrar = fl_texture_registrar_new(self);
648 }
fl_display_monitor_new
FlDisplayMonitor * fl_display_monitor_new(FlEngine *engine, GdkDisplay *display)
Definition: fl_display_monitor.cc:94
fl_opengl_manager_new
FlOpenGLManager * fl_opengl_manager_new()
Definition: fl_opengl_manager.cc:70
value
uint8_t value
Definition: fl_standard_message_codec.cc:36
fl_task_runner_new
FlTaskRunner * fl_task_runner_new(FlEngine *engine)
Definition: fl_task_runner.cc:147
fl_texture_registrar_new
FlTextureRegistrar * fl_texture_registrar_new(FlEngine *engine)
Definition: fl_texture_registrar.cc:221

References fl_display_monitor_new(), fl_opengl_manager_new(), fl_task_runner_new(), fl_texture_registrar_new(), and value.

## ◆ fl_engine_mark_texture_frame_available()

gboolean fl_engine_mark_texture_frame_available | ( | FlEngine * | engine,
|  | int64_t | texture_id
| ) |  |

fl_engine_mark_texture_frame_available: @engine: an #FlEngine. @texture_id: the identifier of the texture whose frame has been updated.

Tells the Flutter engine that a new texture frame is available for the given texture.

Returns: TRUE on success.

Definition at line 1394 of file fl_engine.cc.

1395 {
1396 g_return_val_if_fail(FL_IS_ENGINE(self), FALSE);
1397 return self->embedder_api.MarkExternalTextureFrameAvailable(
1398 self->engine, texture_id) == kSuccess;
1399 }

References texture_id.

Referenced by mark_texture_frame_available().

## ◆ fl_engine_new()

G_MODULE_EXPORT FlEngine* fl_engine_new | ( | FlDartProject * | project | ) |

FlEngine:

#FlEngine is an object that contains a running Flutter engine. fl_engine_new: @project: an #FlDartProject.

Creates new Flutter engine.

Returns: a new #FlEngine.

Definition at line 693 of file fl_engine.cc.

693 {
694 return fl_engine_new_full(project, nullptr);
695 }
fl_engine_new_full
static FlEngine * fl_engine_new_full(FlDartProject *project, FlBinaryMessenger *binary_messenger)
Definition: fl_engine.cc:650

References fl_engine_new_full().

Referenced by fl_engine_new_headless(), fl_view_new(), and TEST().

## ◆ fl_engine_new_full()

static FlEngine* fl_engine_new_full | ( | FlDartProject * | project,
|  | FlBinaryMessenger * | binary_messenger
| ) |  |
| static

Definition at line 650 of file fl_engine.cc.

651 {
652 g_return_val_if_fail(FL_IS_DART_PROJECT(project), nullptr);
653
654 FlEngine* self = FL_ENGINE(g_object_new(fl_engine_get_type(), nullptr));
655
656 self->project = FL_DART_PROJECT(g_object_ref(project));
657 const gchar* renderer = g_getenv("FLUTTER_LINUX_RENDERER");
658 if (g_strcmp0(renderer, "software") == 0) {
659 self->renderer_type = kSoftware;
660 g_warning(
661 "Using the software renderer. Not all features are supported. This is "
662 "not recommended.\n"
663 "\n"
664 "To switch back to the default renderer, unset the "
665 "FLUTTER_LINUX_RENDERER environment variable.");
666 } else {
667 if (renderer != nullptr && strcmp(renderer, "opengl") != 0) {
668 g_warning("Unknown renderer type '%s', defaulting to opengl", renderer);
669 }
670 self->renderer_type = kOpenGL;
671 }
672
673 if (binary_messenger != nullptr) {
674 self->binary_messenger =
675 FL_BINARY_MESSENGER(g_object_ref(binary_messenger));
676 } else {
677 self->binary_messenger = fl_binary_messenger_new(self);
678 }
679 self->keyboard_manager = fl_keyboard_manager_new(self);
680 self->mouse_cursor_handler =
681 fl_mouse_cursor_handler_new(self->binary_messenger);
682 self->windowing_handler = fl_windowing_handler_new(self);
683
684 return self;
685 }
fl_binary_messenger_new
FlBinaryMessenger * fl_binary_messenger_new(FlEngine *engine)
Definition: fl_binary_messenger.cc:391
fl_keyboard_manager_new
FlKeyboardManager * fl_keyboard_manager_new(FlEngine *engine)
Definition: fl_keyboard_manager.cc:356
fl_mouse_cursor_handler_new
FlMouseCursorHandler * fl_mouse_cursor_handler_new(FlBinaryMessenger *messenger)
Definition: fl_mouse_cursor_handler.cc:134
fl_windowing_handler_new
FlWindowingHandler * fl_windowing_handler_new(FlEngine *engine)
Definition: fl_windowing_handler.cc:260

References fl_binary_messenger_new(), fl_keyboard_manager_new(), fl_mouse_cursor_handler_new(), and fl_windowing_handler_new().

Referenced by fl_engine_new(), and fl_engine_new_with_binary_messenger().

## ◆ fl_engine_new_headless()

G_MODULE_EXPORT FlEngine* fl_engine_new_headless | ( | FlDartProject * | project | ) |

fl_engine_new_headless: @project: an #FlDartProject.

Creates new Flutter engine running in headless mode.

Returns: a new #FlEngine.

Definition at line 703 of file fl_engine.cc.

703 {
704 return fl_engine_new(project);
705 }
fl_engine_new
G_MODULE_EXPORT FlEngine * fl_engine_new(FlDartProject *project)
Definition: fl_engine.cc:693

References fl_engine_new().

## ◆ fl_engine_new_with_binary_messenger()

FlEngine* fl_engine_new_with_binary_messenger | ( | FlBinaryMessenger * | binary_messenger | ) |

fl_engine_new_with_binary_messenger: @binary_messenger: an #FlBinaryMessenger.

Creates a new engine with a custom binary messenger. Used for testing.

Returns: a new #FlEngine.

Definition at line 697 of file fl_engine.cc.

698 {
699 g_autoptr(FlDartProject) project = fl_dart_project_new();
700 return fl_engine_new_full(project, binary_messenger);
701 }
fl_dart_project_new
G_MODULE_EXPORT FlDartProject * fl_dart_project_new()
Definition: fl_dart_project.cc:52

References fl_dart_project_new(), fl_engine_new_full(), and g_autoptr().

Referenced by TEST().

## ◆ fl_engine_notify_display_update()

void fl_engine_notify_display_update | ( | FlEngine * | engine,
|  | const FlutterEngineDisplay * | displays,
|  | size_t | displays_length
| ) |  |

fl_engine_notify_display_update: @engine: an #FlEngine. @displays: displays present on the system. @displays_length: length of @displays.

Notify the current displays that are in the system.

Definition at line 864 of file fl_engine.cc.

866 {
867 g_return_if_fail(FL_IS_ENGINE(self));
868
869 FlutterEngineResult result = self->embedder_api.NotifyDisplayUpdate(
870 self->engine, kFlutterEngineDisplaysUpdateTypeStartup, displays,
871 displays_length);
872 if (result != kSuccess) {
873 g_warning("Failed to notify display update to Flutter engine: %d", result);
874 }
875 }

Referenced by notify_display_update(), and TEST().

## ◆ fl_engine_on_pre_engine_restart_cb()

static void fl_engine_on_pre_engine_restart_cb | ( | void * | user_data | ) |
| static

Definition at line 514 of file fl_engine.cc.

514 {
515 FlEngine* self = FL_ENGINE(user_data);
516
517 setup_keyboard(self);
518
519 g_signal_emit(self, fl_engine_signals[SIGNAL_ON_PRE_ENGINE_RESTART], 0);
520 }
g_signal_emit
g_signal_emit(self, fl_application_signals[SIGNAL_CREATE_WINDOW], 0, view, &window)
setup_keyboard
static void setup_keyboard(FlEngine *self)
Definition: fl_engine.cc:490

References fl_engine_signals, g_signal_emit(), setup_keyboard(), SIGNAL_ON_PRE_ENGINE_RESTART, and user_data.

Referenced by fl_engine_start().

## ◆ fl_engine_platform_message_cb()

static void fl_engine_platform_message_cb | ( | const FlutterPlatformMessage * | message,
|  | void * | user_data
| ) |  |
| static

Definition at line 463 of file fl_engine.cc.

464 {
465 FlEngine* self = FL_ENGINE(user_data);
466
467 gboolean handled = FALSE;
468 if (self->platform_message_handler != nullptr) {
469 g_autoptr(GBytes) data =
470 g_bytes_new(message->message, message->message_size);
471 handled = self->platform_message_handler(
472 self, message->channel, data, message->response_handle,
473 self->platform_message_handler_data);
474 }
475
476 if (!handled) {
477 fl_engine_send_platform_message_response(self, message->response_handle,
478 nullptr, nullptr);
479 }
480 }
fl_engine_send_platform_message_response
gboolean fl_engine_send_platform_message_response(FlEngine *self, const FlutterPlatformMessageResponseHandle *handle, GBytes *response, GError **error)
Definition: fl_engine.cc:1001

References fl_engine_send_platform_message_response(), g_autoptr(), and user_data.

Referenced by fl_engine_start().

## ◆ fl_engine_platform_message_response_cb()

static void fl_engine_platform_message_response_cb | ( | const uint8_t * | data,
|  | size_t | data_length,
|  | void * | user_data
| ) |  |
| static

Definition at line 524 of file fl_engine.cc.

526 {
527 g_autoptr(GTask) task = G_TASK(user_data);
528 g_task_return_pointer(task, g_bytes_new(data, data_length),
529 reinterpret_cast<GDestroyNotify>(g_bytes_unref));
530 }

References g_autoptr(), and user_data.

Referenced by fl_engine_send_platform_message().

## ◆ fl_engine_plugin_registry_iface_init()

static void fl_engine_plugin_registry_iface_init | ( | FlPluginRegistryInterface * | iface | ) |
| static

Definition at line 542 of file fl_engine.cc.

543 {
544 iface->get_registrar_for_plugin = fl_engine_get_registrar_for_plugin;
545 }
fl_engine_get_registrar_for_plugin
static FlPluginRegistrar * fl_engine_get_registrar_for_plugin(FlPluginRegistry *registry, const gchar *name)
Definition: fl_engine.cc:533

References fl_engine_get_registrar_for_plugin().

## ◆ fl_engine_post_task()

static void fl_engine_post_task | ( | FlutterTask | task,
|  | uint64_t | target_time_nanos,
|  | void * | user_data
| ) |  |
| static

Definition at line 454 of file fl_engine.cc.

456 {
457 FlEngine* self = static_cast<FlEngine*>(user_data);
458
459 fl_task_runner_post_flutter_task(self->task_runner, task, target_time_nanos);
460 }
fl_task_runner_post_flutter_task
void fl_task_runner_post_flutter_task(FlTaskRunner *self, FlutterTask task, uint64_t target_time_nanos)
Definition: fl_task_runner.cc:154

References fl_task_runner_post_flutter_task(), and user_data.

Referenced by fl_engine_start().

## ◆ fl_engine_register_external_texture()

gboolean fl_engine_register_external_texture | ( | FlEngine * | engine,
|  | int64_t | texture_id
| ) |  |

fl_engine_register_external_texture: @engine: an #FlEngine. @texture_id: the identifier of the texture that is available.

Tells the Flutter engine that a new external texture is available.

Returns: TRUE on success.

Definition at line 1401 of file fl_engine.cc.

1402 {
1403 g_return_val_if_fail(FL_IS_ENGINE(self), FALSE);
1404 return self->embedder_api.RegisterExternalTexture(self->engine, texture_id) ==
1405 kSuccess;
1406 }

References texture_id.

Referenced by register_texture().

## ◆ fl_engine_remove_view()

void fl_engine_remove_view | ( | FlEngine * | engine,
|  | FlutterViewId | view_id,
|  | GCancellable * | cancellable,
|  | GAsyncReadyCallback | callback,
|  | gpointer | user_data
| ) |  |

fl_engine_remove_view: @engine: an #FlEngine. @view_id: ID to remove. @cancellable: (allow-none): a #GCancellable or NULL. @callback: (scope async): a #GAsyncReadyCallback to call when the view is added. @user_data: (closure): user data to pass to @callback.

Removes a view previously added with fl_engine_add_view().

Definition at line 948 of file fl_engine.cc.

952 {
953 g_return_if_fail(FL_IS_ENGINE(self));
954
955 g_hash_table_remove(self->renderables_by_view_id, GINT_TO_POINTER(view_id));
956
957 g_autoptr(GTask) task = g_task_new(self, cancellable, callback, user_data);
958
959 FlutterRemoveViewInfo info;
960 info.struct_size = sizeof(FlutterRemoveViewInfo);
961 info.view_id = view_id;
962 info.user_data = g_object_ref(task);
963 info.remove_view_callback = view_removed_cb;
964 FlutterEngineResult result =
965 self->embedder_api.RemoveView(self->engine, &info);
966 if (result != kSuccess) {
967 g_task_return_new_error(task, fl_engine_error_quark(),
968 FL_ENGINE_ERROR_FAILED, "RemoveView returned %d",
969 result);
970 // This would have been done in the callback, but that won't occur now.
971 g_object_unref(task);
972 }
973 }
view_removed_cb
static void view_removed_cb(const FlutterRemoveViewResult *result)
Definition: fl_engine.cc:182

References FL_ENGINE_ERROR_FAILED, fl_engine_error_quark(), g_autoptr(), user_data, view_id, and view_removed_cb().

Referenced by fl_view_dispose(), and TEST().

## ◆ fl_engine_remove_view_finish()

gboolean fl_engine_remove_view_finish | ( | FlEngine * | engine,
|  | GAsyncResult * | result,
|  | GError ** | error
| ) |  |

fl_engine_remove_view_finish: @engine: an #FlEngine.

Returns
  : a #GAsyncResult. @error: (allow-none): #GError location to store the error occurring, or NULL to ignore.

Completes request started with fl_engine_remove_view().

Returns: TRUE on succcess.

Definition at line 975 of file fl_engine.cc.

977 {
978 g_return_val_if_fail(FL_IS_ENGINE(self), FALSE);
979 return g_task_propagate_boolean(G_TASK(result), error);
980 }

References error.

Referenced by remove_view_cb(), remove_view_engine_error_cb(), and remove_view_error_cb().

## ◆ fl_engine_request_app_exit()

void fl_engine_request_app_exit | ( | FlEngine * | engine | ) |

fl_engine_request_app_exit: @engine: an #FlEngine.

Request the application exits.

Definition at line 1448 of file fl_engine.cc.

1448 {
1449 g_return_if_fail(FL_IS_ENGINE(self));
1450 fl_platform_handler_request_app_exit(self->platform_handler);
1451 }
fl_platform_handler_request_app_exit
void fl_platform_handler_request_app_exit(FlPlatformHandler *self)
Definition: fl_platform_handler.cc:267

References fl_platform_handler_request_app_exit().

Referenced by window_delete_event_cb().

## ◆ fl_engine_runs_task_on_current_thread()

static bool fl_engine_runs_task_on_current_thread | ( | void * | user_data | ) |
| static

Definition at line 448 of file fl_engine.cc.

448 {
449 FlEngine* self = static_cast<FlEngine*>(user_data);
450 return self->thread == g_thread_self();
451 }

References user_data.

Referenced by fl_engine_start().

## ◆ fl_engine_send_key_event()

void fl_engine_send_key_event | ( | FlEngine * | engine,
|  | const FlutterKeyEvent * | event,
|  | GCancellable * | cancellable,
|  | GAsyncReadyCallback | callback,
|  | gpointer | user_data
| ) |  |

fl_engine_send_key_event: @engine: an #FlEngine. @event: key event to send. @cancellable: (allow-none): a #GCancellable or NULL. @callback: (scope async): a #GAsyncReadyCallback to call when the request is satisfied. @user_data: (closure): user data to pass to @callback.

Send a key event to the engine.

Definition at line 1326 of file fl_engine.cc.

1330 {
1331 g_return_if_fail(FL_IS_ENGINE(self));
1332
1333 g_autoptr(GTask) task = g_task_new(self, cancellable, callback, user_data);
1334
1335 if (self->engine == nullptr) {
1336 g_task_return_new_error(task, fl_engine_error_quark(),
1337 FL_ENGINE_ERROR_FAILED, "No engine");
1338 return;
1339 }
1340
1341 if (self->embedder_api.SendKeyEvent(self->engine, event, send_key_event_cb,
1342 g_object_ref(task)) != kSuccess) {
1343 g_task_return_new_error(task, fl_engine_error_quark(),
1344 FL_ENGINE_ERROR_FAILED, "Failed to send key event");
1345 g_object_unref(task);
1346 }
1347 }
send_key_event_cb
static void send_key_event_cb(bool handled, void *user_data)
Definition: fl_engine.cc:1319

References FL_ENGINE_ERROR_FAILED, fl_engine_error_quark(), g_autoptr(), send_key_event_cb(), and user_data.

Referenced by fl_key_embedder_responder_handle_event(), fl_key_embedder_responder_handle_event_impl(), synthesize_simple_event(), and TEST().

## ◆ fl_engine_send_key_event_finish()

gboolean fl_engine_send_key_event_finish | ( | FlEngine * | engine,
|  | GAsyncResult * | result,
|  | gboolean * | handled,
|  | GError ** | error
| ) |  |

fl_engine_send_key_event_finish: @engine: an #FlEngine.

Returns
  : a #GAsyncResult. @handled: location to write if this event was handled by the engine. @error: (allow-none): #GError location to store the error occurring, or NULL to ignore.

Completes request started with fl_engine_send_key_event().

Returns: TRUE on success.

Definition at line 1349 of file fl_engine.cc.

1352 {
1353 g_return_val_if_fail(FL_IS_ENGINE(self), FALSE);
1354 g_return_val_if_fail(g_task_is_valid(result, self), FALSE);
1355
1356 g_autofree gboolean* return_value =
1357 static_cast<gboolean*>(g_task_propagate_pointer(G_TASK(result), error));
1358 if (return_value == nullptr) {
1359 return FALSE;
1360 }
1361
1362 *handled = *return_value;
1363 return TRUE;
1364 }
TRUE
return TRUE
Definition: fl_compositor_software.cc:68

References error, and TRUE.

Referenced by TEST().

## ◆ fl_engine_send_mouse_pointer_event()

void fl_engine_send_mouse_pointer_event | ( | FlEngine * | engine,
|  | FlutterViewId | view_id,
|  | FlutterPointerPhase | phase,
|  | size_t | timestamp,
|  | double | x,
|  | double | y,
|  | FlutterPointerDeviceKind | device_kind,
|  | double | scroll_delta_x,
|  | double | scroll_delta_y,
|  | int64_t | buttons
| ) |  |

fl_engine_send_mouse_pointer_event: @engine: an #FlEngine. @view_id: the view that the event occured on. @phase: mouse phase. @timestamp: time when event occurred in microseconds. @x: x location of mouse cursor. @y: y location of mouse cursor. @device_kind: kind of pointing device. @scroll_delta_x: x offset of scroll. @scroll_delta_y: y offset of scroll. @buttons: buttons that are pressed.

Sends a mouse pointer event to the engine.

Definition at line 1123 of file fl_engine.cc.

1132 {
1133 g_return_if_fail(FL_IS_ENGINE(self));
1134
1135 if (self->engine == nullptr) {
1136 return;
1137 }
1138
1139 FlutterPointerEvent fl_event = {};
1140 fl_event.struct_size = sizeof(fl_event);
1141 fl_event.phase = phase;
1142 fl_event.timestamp = timestamp;
1143 fl_event.x = x;
1144 fl_event.y = y;
1145 if (scroll_delta_x != 0 || scroll_delta_y != 0) {
1146 fl_event.signal_kind = kFlutterPointerSignalKindScroll;
1147 }
1148 fl_event.scroll_delta_x = scroll_delta_x;
1149 fl_event.scroll_delta_y = scroll_delta_y;
1150 fl_event.device_kind = device_kind;
1151 fl_event.buttons = buttons;
1152 fl_event.device = kMousePointerDeviceId;
1153 fl_event.view_id = view_id;
1154 self->embedder_api.SendPointerEvent(self->engine, &fl_event, 1);
1155 }
kMousePointerDeviceId
static constexpr int32_t kMousePointerDeviceId
Definition: fl_engine.cc:36

References kMousePointerDeviceId, and view_id.

Referenced by ensure_pointer_added(), fl_pointer_manager_handle_button_press(), fl_pointer_manager_handle_button_release(), fl_pointer_manager_handle_leave(), fl_pointer_manager_handle_motion(), fl_scrolling_manager_handle_scroll_event(), and TEST().

## ◆ fl_engine_send_platform_message()

void fl_engine_send_platform_message | ( | FlEngine * | engine,
|  | const gchar * | channel,
|  | GBytes * | message,
|  | GCancellable * | cancellable,
|  | GAsyncReadyCallback | callback,
|  | gpointer | user_data
| ) |  |

fl_engine_send_platform_message: @engine: an #FlEngine. @channel: channel to send to. @message: (allow-none): message buffer to send or NULL for an empty message @cancellable: (allow-none): a #GCancellable or NULL. @callback: (scope async): a #GAsyncReadyCallback to call when the request is satisfied. @user_data: (closure): user data to pass to @callback.

Asynchronously sends a platform message.

Definition at line 1033 of file fl_engine.cc.

1038 {
1039 g_return_if_fail(FL_IS_ENGINE(self));
1040
1041 GTask* task = nullptr;
1042 FlutterPlatformMessageResponseHandle* response_handle = nullptr;
1043 if (callback != nullptr) {
1044 task = g_task_new(self, cancellable, callback, user_data);
1045
1046 if (self->engine == nullptr) {
1047 g_task_return_new_error(task, fl_engine_error_quark(),
1048 FL_ENGINE_ERROR_FAILED, "No engine to send to");
1049 return;
1050 }
1051
1052 FlutterEngineResult result =
1053 self->embedder_api.PlatformMessageCreateResponseHandle(
1054 self->engine, fl_engine_platform_message_response_cb, task,
1055 &response_handle);
1056 if (result != kSuccess) {
1057 g_task_return_new_error(task, fl_engine_error_quark(),
1058 FL_ENGINE_ERROR_FAILED,
1059 "Failed to create response handle");
1060 g_object_unref(task);
1061 return;
1062 }
1063 } else if (self->engine == nullptr) {
1064 return;
1065 }
1066
1067 FlutterPlatformMessage fl_message = {};
1068 fl_message.struct_size = sizeof(fl_message);
1069 fl_message.channel = channel;
1070 fl_message.message =
1071 message != nullptr
1072 ? static_cast<const uint8_t*>(g_bytes_get_data(message, nullptr))
1073 : nullptr;
1074 fl_message.message_size = message != nullptr ? g_bytes_get_size(message) : 0;
1075 fl_message.response_handle = response_handle;
1076 FlutterEngineResult result =
1077 self->embedder_api.SendPlatformMessage(self->engine, &fl_message);
1078
1079 if (result != kSuccess && task != nullptr) {
1080 g_task_return_new_error(task, fl_engine_error_quark(),
1081 FL_ENGINE_ERROR_FAILED,
1082 "Failed to send platform messages");
1083 g_object_unref(task);
1084 }
1085
1086 if (response_handle != nullptr) {
1087 self->embedder_api.PlatformMessageReleaseResponseHandle(self->engine,
1088 response_handle);
1089 }
1090 }
fl_engine_platform_message_response_cb
static void fl_engine_platform_message_response_cb(const uint8_t *data, size_t data_length, void *user_data)
Definition: fl_engine.cc:524

References FL_ENGINE_ERROR_FAILED, fl_engine_error_quark(), fl_engine_platform_message_response_cb(), and user_data.

Referenced by send_on_channel(), and TEST().

## ◆ fl_engine_send_platform_message_finish()

GBytes* fl_engine_send_platform_message_finish | ( | FlEngine * | engine,
|  | GAsyncResult * | result,
|  | GError ** | error
| ) |  |

fl_engine_send_platform_message_finish: @engine: an #FlEngine.

Returns
  : a #GAsyncResult. @error: (allow-none): #GError location to store the error occurring, or NULL to ignore.

Completes request started with fl_engine_send_platform_message().

Returns: message response on success or NULL on error.

Definition at line 1092 of file fl_engine.cc.

1094 {
1095 g_return_val_if_fail(FL_IS_ENGINE(self), FALSE);
1096 g_return_val_if_fail(g_task_is_valid(result, self), FALSE);
1097
1098 return static_cast<GBytes*>(g_task_propagate_pointer(G_TASK(result), error));
1099 }

References error.

Referenced by send_on_channel_finish().

## ◆ fl_engine_send_platform_message_response()

gboolean fl_engine_send_platform_message_response | ( | FlEngine * | engine,
|  | const FlutterPlatformMessageResponseHandle * | handle,
|  | GBytes * | response,
|  | GError ** | error
| ) |  |

fl_engine_send_platform_message_response: @engine: an #FlEngine. @handle: handle that was provided in FlEnginePlatformMessageHandler. @response: (allow-none): response to send or NULL for an empty response. @error: (allow-none): #GError location to store the error occurring, or NULL to ignore.

Responds to a platform message.

Returns: TRUE on success.

Definition at line 1001 of file fl_engine.cc.

1005 {
1006 g_return_val_if_fail(FL_IS_ENGINE(self), FALSE);
1007 g_return_val_if_fail(handle != nullptr, FALSE);
1008
1009 if (self->engine == nullptr) {
1010 g_set_error(error, fl_engine_error_quark(), FL_ENGINE_ERROR_FAILED,
1011 "No engine to send response to");
1012 return FALSE;
1013 }
1014
1015 gsize data_length = 0;
1016 const uint8_t* data = nullptr;
1017 if (response != nullptr) {
1018 data =
1019 static_cast<const uint8_t*>(g_bytes_get_data(response, &data_length));
1020 }
1021 FlutterEngineResult result = self->embedder_api.SendPlatformMessageResponse(
1022 self->engine, handle, data, data_length);
1023
1024 if (result != kSuccess) {
1025 g_set_error(error, fl_engine_error_quark(), FL_ENGINE_ERROR_FAILED,
1026 "Failed to send platform message response");
1027 return FALSE;
1028 }
1029
1030 return TRUE;
1031 }

References error, FL_ENGINE_ERROR_FAILED, fl_engine_error_quark(), and TRUE.

Referenced by fl_engine_platform_message_cb(), send_response(), and TEST().

## ◆ fl_engine_send_pointer_pan_zoom_event()

void fl_engine_send_pointer_pan_zoom_event | ( | FlEngine * | engine,
|  | FlutterViewId | view_id,
|  | size_t | timestamp,
|  | double | x,
|  | double | y,
|  | FlutterPointerPhase | phase,
|  | double | pan_x,
|  | double | pan_y,
|  | double | scale,
|  | double | rotation
| ) |  |

fl_engine_send_pointer_pan_zoom_event: @engine: an #FlEngine. @view_id: the view that the event occured on. @timestamp: time when event occurred in microseconds. @x: x location of mouse cursor. @y: y location of mouse cursor. @phase: mouse phase. @pan_x: x offset of the pan/zoom in pixels. @pan_y: y offset of the pan/zoom in pixels. @scale: scale of the pan/zoom. @rotation: rotation of the pan/zoom in radians.

Sends a pan/zoom pointer event to the engine.

Definition at line 1287 of file fl_engine.cc.

1296 {
1297 g_return_if_fail(FL_IS_ENGINE(self));
1298
1299 if (self->engine == nullptr) {
1300 return;
1301 }
1302
1303 FlutterPointerEvent fl_event = {};
1304 fl_event.struct_size = sizeof(fl_event);
1305 fl_event.timestamp = timestamp;
1306 fl_event.x = x;
1307 fl_event.y = y;
1308 fl_event.phase = phase;
1309 fl_event.pan_x = pan_x;
1310 fl_event.pan_y = pan_y;
1311 fl_event.scale = scale;
1312 fl_event.rotation = rotation;
1313 fl_event.device = kPointerPanZoomDeviceId;
1314 fl_event.device_kind = kFlutterPointerDeviceKindTrackpad;
1315 fl_event.view_id = view_id;
1316 self->embedder_api.SendPointerEvent(self->engine, &fl_event, 1);
1317 }
kPointerPanZoomDeviceId
static constexpr int32_t kPointerPanZoomDeviceId
Definition: fl_engine.cc:37

References kPointerPanZoomDeviceId, and view_id.

Referenced by fl_scrolling_manager_handle_rotation_begin(), fl_scrolling_manager_handle_rotation_end(), fl_scrolling_manager_handle_rotation_update(), fl_scrolling_manager_handle_scroll_event(), fl_scrolling_manager_handle_zoom_begin(), fl_scrolling_manager_handle_zoom_end(), fl_scrolling_manager_handle_zoom_update(), and TEST().

## ◆ fl_engine_send_touch_add_event()

void fl_engine_send_touch_add_event | ( | FlEngine * | engine,
|  | FlutterViewId | view_id,
|  | size_t | timestamp,
|  | double | x,
|  | double | y,
|  | int32_t | device
| ) |  |

fl_engine_send_touch_add_event: @engine: an #FlEngine. @view_id: the view that the event occured on. @timestamp: time when event occurred in microseconds. @x: x location of mouse cursor. @y: y location of mouse cursor. @device: device id.

Sends a touch add event to the engine.

Definition at line 1235 of file fl_engine.cc.

1240 {
1241 g_return_if_fail(FL_IS_ENGINE(self));
1242
1243 if (self->engine == nullptr) {
1244 return;
1245 }
1246
1247 FlutterPointerEvent event;
1248 event.timestamp = timestamp;
1249 event.x = x;
1250 event.y = y;
1251 event.device_kind = kFlutterPointerDeviceKindTouch;
1252 event.device = device;
1253 event.buttons = 0;
1254 event.view_id = view_id;
1255 event.phase = FlutterPointerPhase::kAdd;
1256 event.struct_size = sizeof(event);
1257
1258 self->embedder_api.SendPointerEvent(self->engine, &event, 1);
1259 }

References view_id.

Referenced by ensure_touch_added().

## ◆ fl_engine_send_touch_down_event()

void fl_engine_send_touch_down_event | ( | FlEngine * | engine,
|  | FlutterViewId | view_id,
|  | size_t | timestamp,
|  | double | x,
|  | double | y,
|  | int32_t | device
| ) |  |

fl_engine_send_touch_down_event: @engine: an #FlEngine. @view_id: the view that the event occured on. @timestamp: time when event occurred in microseconds. @x: x location of mouse cursor. @y: y location of mouse cursor. @device: device id.

Sends a touch down event to the engine.

Definition at line 1183 of file fl_engine.cc.

1188 {
1189 g_return_if_fail(FL_IS_ENGINE(self));
1190
1191 if (self->engine == nullptr) {
1192 return;
1193 }
1194
1195 FlutterPointerEvent event;
1196 event.timestamp = timestamp;
1197 event.x = x;
1198 event.y = y;
1199 event.device_kind = kFlutterPointerDeviceKindTouch;
1200 event.device = device;
1201 event.buttons = FlutterPointerMouseButtons::kFlutterPointerButtonMousePrimary;
1202 event.view_id = view_id;
1203 event.phase = FlutterPointerPhase::kDown;
1204 event.struct_size = sizeof(event);
1205
1206 self->embedder_api.SendPointerEvent(self->engine, &event, 1);
1207 }

References view_id.

Referenced by fl_touch_manager_handle_touch_event().

## ◆ fl_engine_send_touch_move_event()

void fl_engine_send_touch_move_event | ( | FlEngine * | engine,
|  | FlutterViewId | view_id,
|  | size_t | timestamp,
|  | double | x,
|  | double | y,
|  | int32_t | device
| ) |  |

fl_engine_send_touch_move_event: @engine: an #FlEngine. @view_id: the view that the event occured on. @timestamp: time when event occurred in microseconds. @x: x location of mouse cursor. @y: y location of mouse cursor. @device: device id.

Sends a touch move event to the engine.

Definition at line 1209 of file fl_engine.cc.

1214 {
1215 g_return_if_fail(FL_IS_ENGINE(self));
1216
1217 if (self->engine == nullptr) {
1218 return;
1219 }
1220
1221 FlutterPointerEvent event;
1222 event.timestamp = timestamp;
1223 event.x = x;
1224 event.y = y;
1225 event.device_kind = kFlutterPointerDeviceKindTouch;
1226 event.device = device;
1227 event.buttons = FlutterPointerMouseButtons::kFlutterPointerButtonMousePrimary;
1228 event.view_id = view_id;
1229 event.phase = FlutterPointerPhase::kMove;
1230 event.struct_size = sizeof(event);
1231
1232 self->embedder_api.SendPointerEvent(self->engine, &event, 1);
1233 }

References view_id.

Referenced by fl_touch_manager_handle_touch_event().

## ◆ fl_engine_send_touch_remove_event()

void fl_engine_send_touch_remove_event | ( | FlEngine * | engine,
|  | FlutterViewId | view_id,
|  | size_t | timestamp,
|  | double | x,
|  | double | y,
|  | int32_t | device
| ) |  |

fl_engine_send_touch_remove_event: @engine: an #FlEngine. @view_id: the view that the event occured on. @timestamp: time when event occurred in microseconds. @x: x location of mouse cursor. @y: y location of mouse cursor. @device: device id.

Sends a touch remove event to the engine.

Definition at line 1261 of file fl_engine.cc.

1266 {
1267 g_return_if_fail(FL_IS_ENGINE(self));
1268
1269 if (self->engine == nullptr) {
1270 return;
1271 }
1272
1273 FlutterPointerEvent event;
1274 event.timestamp = timestamp;
1275 event.x = x;
1276 event.y = y;
1277 event.device_kind = kFlutterPointerDeviceKindTouch;
1278 event.device = device;
1279 event.buttons = 0;
1280 event.view_id = view_id;
1281 event.phase = FlutterPointerPhase::kRemove;
1282 event.struct_size = sizeof(event);
1283
1284 self->embedder_api.SendPointerEvent(self->engine, &event, 1);
1285 }

References view_id.

Referenced by fl_touch_manager_handle_touch_event().

## ◆ fl_engine_send_touch_up_event()

void fl_engine_send_touch_up_event | ( | FlEngine * | engine,
|  | FlutterViewId | view_id,
|  | size_t | timestamp,
|  | double | x,
|  | double | y,
|  | int32_t | device
| ) |  |

fl_engine_send_touch_up_event: @engine: an #FlEngine. @view_id: the view that the event occured on. @timestamp: time when event occurred in microseconds. @x: x location of mouse cursor. @y: y location of mouse cursor. @device: device id.

Sends a touch up event to the engine.

Definition at line 1157 of file fl_engine.cc.

1162 {
1163 g_return_if_fail(FL_IS_ENGINE(self));
1164
1165 if (self->engine == nullptr) {
1166 return;
1167 }
1168
1169 FlutterPointerEvent event;
1170 event.timestamp = timestamp;
1171 event.x = x;
1172 event.y = y;
1173 event.device_kind = kFlutterPointerDeviceKindTouch;
1174 event.device = device;
1175 event.buttons = 0;
1176 event.view_id = view_id;
1177 event.phase = FlutterPointerPhase::kUp;
1178 event.struct_size = sizeof(event);
1179
1180 self->embedder_api.SendPointerEvent(self->engine, &event, 1);
1181 }

References view_id.

Referenced by fl_touch_manager_handle_touch_event().

## ◆ fl_engine_send_window_metrics_event()

void fl_engine_send_window_metrics_event | ( | FlEngine * | engine,
|  | FlutterEngineDisplayId | display_id,
|  | FlutterViewId | view_id,
|  | size_t | width,
|  | size_t | height,
|  | double | pixel_ratio
| ) |  |

fl_engine_send_window_metrics_event: @engine: an #FlEngine. @display_id: the display this view is rendering on. @view_id: the view that the event occured on. @width: width of the window in pixels. @height: height of the window in pixels. @pixel_ratio: scale factor for window.

Sends a window metrics event to the engine.

Definition at line 1101 of file fl_engine.cc.

1106 {
1107 g_return_if_fail(FL_IS_ENGINE(self));
1108
1109 if (self->engine == nullptr) {
1110 return;
1111 }
1112
1113 FlutterWindowMetricsEvent event = {};
1114 event.struct_size = sizeof(FlutterWindowMetricsEvent);
1115 event.width = width;
1116 event.height = height;
1117 event.pixel_ratio = pixel_ratio;
1118 event.display_id = display_id;
1119 event.view_id = view_id;
1120 self->embedder_api.SendWindowMetricsEvent(self->engine, &event);
1121 }

References height, view_id, and width.

Referenced by handle_geometry_changed(), and TEST().

## ◆ fl_engine_set_implicit_view()

void fl_engine_set_implicit_view | ( | FlEngine * | engine,
|  | FlRenderable * | renderable
| ) |  |

fl_engine_set_implicit_view: @engine: an #FlEngine. @renderable: the object that will render the implicit view.

Sets the object to render the implicit view.

Definition at line 877 of file fl_engine.cc.

877 {
878 GWeakRef* ref = g_new(GWeakRef, 1);
879 g_weak_ref_init(ref, G_OBJECT(renderable));
880 g_hash_table_insert(self->renderables_by_view_id,
881 GINT_TO_POINTER(flutter::kFlutterImplicitViewId), ref);
882 }

Referenced by fl_view_new(), and TEST().

## ◆ fl_engine_set_platform_message_handler()

void fl_engine_set_platform_message_handler | ( | FlEngine * | engine,
|  | FlEnginePlatformMessageHandler | handler,
|  | gpointer | user_data,
|  | GDestroyNotify | destroy_notify
| ) |  |

fl_engine_set_platform_message_handler: @engine: an #FlEngine. @handler: function to call when a platform message is received. @user_data: (closure): user data to pass to @handler. @destroy_notify: (allow-none): a function which gets called to free @user_data, or NULL.

Registers the function called when a platform message is received. Call fl_engine_send_platform_message_response() with the response to this message. Ownership of #FlutterPlatformMessageResponseHandle is transferred to the caller, and the message must be responded to avoid memory leaks.

Definition at line 982 of file fl_engine.cc.

986 {
987 g_return_if_fail(FL_IS_ENGINE(self));
988 g_return_if_fail(handler != nullptr);
989
990 if (self->platform_message_handler_destroy_notify) {
991 self->platform_message_handler_destroy_notify(
992 self->platform_message_handler_data);
993 }
994
995 self->platform_message_handler = handler;
996 self->platform_message_handler_data = user_data;
997 self->platform_message_handler_destroy_notify = destroy_notify;
998 }

References user_data.

Referenced by fl_binary_messenger_new().

## ◆ fl_engine_set_property()

static void fl_engine_set_property | ( | GObject * | object,
|  | guint | prop_id,
|  | const GValue * | value,
|  | GParamSpec * | pspec
| ) |  |
| static

Definition at line 547 of file fl_engine.cc.

550 {
551 FlEngine* self = FL_ENGINE(object);
552 switch (prop_id) {
553 case PROP_BINARY_MESSENGER:
554 g_set_object(&self->binary_messenger,
555 FL_BINARY_MESSENGER(g_value_get_object(value)));
556 break;
557 default:
558 G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
559 break;
560 }
561 }
prop_id
guint prop_id
Definition: fl_standard_method_codec.cc:31
pspec
guint const GValue GParamSpec * pspec
Definition: fl_standard_method_codec.cc:33

References prop_id, pspec, and value.

Referenced by fl_engine_class_init().

## ◆ fl_engine_start()

gboolean fl_engine_start | ( | FlEngine * | engine,
|  | GError ** | error
| ) |  |

fl_engine_start: @engine: an #FlEngine. @error: (allow-none): #GError location to store the error occurring, or NULL to ignore.

Starts the Flutter engine.

Returns: TRUE on success.

Definition at line 722 of file fl_engine.cc.

722 {
723 g_return_val_if_fail(FL_IS_ENGINE(self), FALSE);
724
725 FlutterRendererConfig config = {};
726 config.type = self->renderer_type;
727 switch (config.type) {
728 case kSoftware:
729 config.software.struct_size = sizeof(FlutterSoftwareRendererConfig);
730 // No action required, as this is handled in
731 // compositor_present_view_callback.
732 config.software.surface_present_callback =
733 [](void* user_data, const void* allocation, size_t row_bytes,
734 size_t height) { return true; };
735 break;
736 case kOpenGL:
737 config.open_gl.struct_size = sizeof(FlutterOpenGLRendererConfig);
738 config.open_gl.gl_proc_resolver = fl_engine_gl_proc_resolver;
739 config.open_gl.make_current = fl_engine_gl_make_current;
740 config.open_gl.clear_current = fl_engine_gl_clear_current;
741 config.open_gl.fbo_callback = fl_engine_gl_get_fbo;
742 // No action required, as this is handled in
743 // compositor_present_view_callback.
744 config.open_gl.present = [](void* user_data) { return true; };
745 config.open_gl.make_resource_current = fl_engine_gl_make_resource_current;
746 config.open_gl.gl_external_texture_frame_callback =
747 fl_engine_gl_external_texture_frame_callback;
748 break;
749 case kMetal:
750 case kVulkan:
751 default:
752 g_set_error(error, fl_engine_error_quark(), FL_ENGINE_ERROR_FAILED,
753 "Unsupported renderer type");
754 return FALSE;
755 }
756
757 FlutterTaskRunnerDescription platform_task_runner = {};
758 platform_task_runner.struct_size = sizeof(FlutterTaskRunnerDescription);
759 platform_task_runner.user_data = self;
760 platform_task_runner.runs_task_on_current_thread_callback =
761 fl_engine_runs_task_on_current_thread;
762 platform_task_runner.post_task_callback = fl_engine_post_task;
763 platform_task_runner.identifier = kPlatformTaskRunnerIdentifier;
764
765 FlutterCustomTaskRunners custom_task_runners = {};
766 custom_task_runners.struct_size = sizeof(FlutterCustomTaskRunners);
767 custom_task_runners.platform_task_runner = &platform_task_runner;
768
769 if (fl_dart_project_get_ui_thread_policy(self->project) ==
770 FL_UI_THREAD_POLICY_RUN_ON_PLATFORM_THREAD) {
771 custom_task_runners.ui_task_runner = &platform_task_runner;
772 }
773
774 g_autoptr(GPtrArray) command_line_args =
775 g_ptr_array_new_with_free_func(g_free);
776 g_ptr_array_insert(command_line_args, 0, g_strdup("flutter"));
777 for (const auto& env_switch : flutter::GetSwitchesFromEnvironment()) {
778 g_ptr_array_add(command_line_args, g_strdup(env_switch.c_str()));
779 }
780
781 gchar** dart_entrypoint_args =
782 fl_dart_project_get_dart_entrypoint_arguments(self->project);
783
784 FlutterProjectArgs args = {};
785 args.struct_size = sizeof(FlutterProjectArgs);
786 args.assets_path = fl_dart_project_get_assets_path(self->project);
787 args.icu_data_path = fl_dart_project_get_icu_data_path(self->project);
788 args.command_line_argc = command_line_args->len;
789 args.command_line_argv =
790 reinterpret_cast<const char* const*>(command_line_args->pdata);
791 args.platform_message_callback = fl_engine_platform_message_cb;
792 args.update_semantics_callback2 = fl_engine_update_semantics_cb;
793 args.custom_task_runners = &custom_task_runners;
794 args.shutdown_dart_vm_when_done = true;
795 args.on_pre_engine_restart_callback = fl_engine_on_pre_engine_restart_cb;
796 args.dart_entrypoint_argc =
797 dart_entrypoint_args != nullptr ? g_strv_length(dart_entrypoint_args) : 0;
798 args.dart_entrypoint_argv =
799 reinterpret_cast<const char* const*>(dart_entrypoint_args);
800 args.engine_id = reinterpret_cast<int64_t>(self);
801
802 FlutterCompositor compositor = {};
803 compositor.struct_size = sizeof(FlutterCompositor);
804 compositor.user_data = self;
805 compositor.create_backing_store_callback =
806 compositor_create_backing_store_callback;
807 compositor.collect_backing_store_callback =
808 compositor_collect_backing_store_callback;
809 compositor.present_view_callback = compositor_present_view_callback;
810 args.compositor = &compositor;
811
812 if (self->embedder_api.RunsAOTCompiledDartCode()) {
813 FlutterEngineAOTDataSource source = {};
814 source.type = kFlutterEngineAOTDataSourceTypeElfPath;
815 source.elf_path = fl_dart_project_get_aot_library_path(self->project);
816 if (self->embedder_api.CreateAOTData(&source, &self->aot_data) !=
817 kSuccess) {
818 g_set_error(error, fl_engine_error_quark(), FL_ENGINE_ERROR_FAILED,
819 "Failed to create AOT data");
820 return FALSE;
821 }
822 args.aot_data = self->aot_data;
823 }
824
825 FlutterEngineResult result = self->embedder_api.Initialize(
826 FLUTTER_ENGINE_VERSION, &config, &args, self, &self->engine);
827 if (result != kSuccess) {
828 g_set_error(error, fl_engine_error_quark(), FL_ENGINE_ERROR_FAILED,
829 "Failed to initialize Flutter engine");
830 return FALSE;
831 }
832
833 result = self->embedder_api.RunInitialized(self->engine);
834 if (result != kSuccess) {
835 g_set_error(error, fl_engine_error_quark(), FL_ENGINE_ERROR_FAILED,
836 "Failed to run Flutter engine");
837 return FALSE;
838 }
839
840 setup_locales(self);
841
842 g_autoptr(FlSettings) settings = fl_settings_new();
843 self->settings_handler = fl_settings_handler_new(self);
844 fl_settings_handler_start(self->settings_handler, settings);
845
846 self->platform_handler = fl_platform_handler_new(self->binary_messenger);
847
848 setup_keyboard(self);
849
850 result = self->embedder_api.UpdateSemanticsEnabled(self->engine, TRUE);
851 if (result != kSuccess) {
852 g_warning("Failed to enable accessibility features on Flutter engine");
853 }
854
855 fl_display_monitor_start(self->display_monitor);
856
857 return TRUE;
858 }
fl_dart_project_get_aot_library_path
G_MODULE_EXPORT const gchar * fl_dart_project_get_aot_library_path(FlDartProject *self)
Definition: fl_dart_project.cc:74
fl_dart_project_get_dart_entrypoint_arguments
G_MODULE_EXPORT gchar ** fl_dart_project_get_dart_entrypoint_arguments(FlDartProject *self)
Definition: fl_dart_project.cc:106
fl_dart_project_get_icu_data_path
G_MODULE_EXPORT const gchar * fl_dart_project_get_icu_data_path(FlDartProject *self)
Definition: fl_dart_project.cc:100
fl_dart_project_get_assets_path
G_MODULE_EXPORT const gchar * fl_dart_project_get_assets_path(FlDartProject *self)
Definition: fl_dart_project.cc:87
fl_dart_project_get_ui_thread_policy
G_MODULE_EXPORT FlUIThreadPolicy fl_dart_project_get_ui_thread_policy(FlDartProject *project)
Definition: fl_dart_project.cc:128
FL_UI_THREAD_POLICY_RUN_ON_PLATFORM_THREAD
@ FL_UI_THREAD_POLICY_RUN_ON_PLATFORM_THREAD
Definition: fl_dart_project.h:143
fl_display_monitor_start
void fl_display_monitor_start(FlDisplayMonitor *self)
Definition: fl_display_monitor.cc:103
fl_engine_gl_external_texture_frame_callback
static bool fl_engine_gl_external_texture_frame_callback(void *user_data, int64_t texture_id, size_t width, size_t height, FlutterOpenGLTexture *opengl_texture)
Definition: fl_engine.cc:407
fl_engine_runs_task_on_current_thread
static bool fl_engine_runs_task_on_current_thread(void *user_data)
Definition: fl_engine.cc:448
fl_engine_on_pre_engine_restart_cb
static void fl_engine_on_pre_engine_restart_cb(void *user_data)
Definition: fl_engine.cc:514
compositor_create_backing_store_callback
static bool compositor_create_backing_store_callback(const FlutterBackingStoreConfig *config, FlutterBackingStore *backing_store_out, void *user_data)
Definition: fl_engine.cc:331
fl_engine_gl_make_current
static bool fl_engine_gl_make_current(void *user_data)
Definition: fl_engine.cc:386
compositor_present_view_callback
static bool compositor_present_view_callback(const FlutterPresentViewInfo *info)
Definition: fl_engine.cc:362
compositor_collect_backing_store_callback
static bool compositor_collect_backing_store_callback(const FlutterBackingStore *backing_store, void *user_data)
Definition: fl_engine.cc:347
fl_engine_post_task
static void fl_engine_post_task(FlutterTask task, uint64_t target_time_nanos, void *user_data)
Definition: fl_engine.cc:454
fl_engine_gl_get_fbo
static uint32_t fl_engine_gl_get_fbo(void *user_data)
Definition: fl_engine.cc:396
fl_engine_gl_proc_resolver
static void * fl_engine_gl_proc_resolver(void *user_data, const char *name)
Definition: fl_engine.cc:382
setup_locales
static void setup_locales(FlEngine *self)
Definition: fl_engine.cc:200
fl_engine_update_semantics_cb
static void fl_engine_update_semantics_cb(const FlutterSemanticsUpdate2 *update, void *user_data)
Definition: fl_engine.cc:483
fl_engine_gl_make_resource_current
static bool fl_engine_gl_make_resource_current(void *user_data)
Definition: fl_engine.cc:401
fl_engine_platform_message_cb
static void fl_engine_platform_message_cb(const FlutterPlatformMessage *message, void *user_data)
Definition: fl_engine.cc:463
kPlatformTaskRunnerIdentifier
static constexpr size_t kPlatformTaskRunnerIdentifier
Definition: fl_engine.cc:32
fl_engine_gl_clear_current
static bool fl_engine_gl_clear_current(void *user_data)
Definition: fl_engine.cc:391
args
G_BEGIN_DECLS G_MODULE_EXPORT FlValue * args
Definition: fl_event_channel.h:89
fl_platform_handler_new
FlPlatformHandler * fl_platform_handler_new(FlBinaryMessenger *messenger)
Definition: fl_platform_handler.cc:254
fl_settings_new
FlSettings * fl_settings_new()
Definition: fl_settings.cc:55
fl_settings_handler_start
void fl_settings_handler_start(FlSettingsHandler *self, FlSettings *settings)
Definition: fl_settings_handler.cc:88
fl_settings_handler_new
FlSettingsHandler * fl_settings_handler_new(FlEngine *engine)
Definition: fl_settings_handler.cc:74
flutter::GetSwitchesFromEnvironment
std::vector< std::string > GetSwitchesFromEnvironment()
Definition: engine_switches.cc:14

References args, compositor_collect_backing_store_callback(), compositor_create_backing_store_callback(), compositor_present_view_callback(), error, fl_dart_project_get_aot_library_path(), fl_dart_project_get_assets_path(), fl_dart_project_get_dart_entrypoint_arguments(), fl_dart_project_get_icu_data_path(), fl_dart_project_get_ui_thread_policy(), fl_display_monitor_start(), FL_ENGINE_ERROR_FAILED, fl_engine_error_quark(), fl_engine_gl_clear_current(), fl_engine_gl_external_texture_frame_callback(), fl_engine_gl_get_fbo(), fl_engine_gl_make_current(), fl_engine_gl_make_resource_current(), fl_engine_gl_proc_resolver(), fl_engine_on_pre_engine_restart_cb(), fl_engine_platform_message_cb(), fl_engine_post_task(), fl_engine_runs_task_on_current_thread(), fl_engine_update_semantics_cb(), fl_platform_handler_new(), fl_settings_handler_new(), fl_settings_handler_start(), fl_settings_new(), FL_UI_THREAD_POLICY_RUN_ON_PLATFORM_THREAD, g_autoptr(), flutter::GetSwitchesFromEnvironment(), height, kPlatformTaskRunnerIdentifier, setup_keyboard(), setup_locales(), TRUE, and user_data.

Referenced by realize_cb(), and TEST().

## ◆ fl_engine_unregister_external_texture()

gboolean fl_engine_unregister_external_texture | ( | FlEngine * | engine,
|  | int64_t | texture_id
| ) |  |

fl_engine_unregister_external_texture: @engine: an #FlEngine. @texture_id: the identifier of the texture that is not available anymore.

Tells the Flutter engine that an existing external texture is not available anymore.

Returns: TRUE on success.

Definition at line 1408 of file fl_engine.cc.

1409 {
1410 g_return_val_if_fail(FL_IS_ENGINE(self), FALSE);
1411 return self->embedder_api.UnregisterExternalTexture(self->engine,
1412 texture_id) == kSuccess;
1413 }

References texture_id.

Referenced by unregister_texture().

## ◆ fl_engine_update_accessibility_features()

void fl_engine_update_accessibility_features | ( | FlEngine * | engine,
|  | int32_t | flags
| ) |  |

fl_engine_update_accessibility_features: @engine: an #FlEngine. @flags: the features to enable in the accessibility tree.

Tells the Flutter engine to update the flags on the accessibility tree.

Definition at line 1437 of file fl_engine.cc.

1437 {
1438 g_return_if_fail(FL_IS_ENGINE(self));
1439
1440 if (self->engine == nullptr) {
1441 return;
1442 }
1443
1444 self->embedder_api.UpdateAccessibilityFeatures(
1445 self->engine, static_cast<FlutterAccessibilityFeature>(flags));
1446 }

Referenced by update_settings().

## ◆ fl_engine_update_semantics_cb()

static void fl_engine_update_semantics_cb | ( | const FlutterSemanticsUpdate2 * | update,
|  | void * | user_data
| ) |  |
| static

Definition at line 483 of file fl_engine.cc.

484 {
485 FlEngine* self = FL_ENGINE(user_data);
486
487 g_signal_emit(self, fl_engine_signals[SIGNAL_UPDATE_SEMANTICS], 0, update);
488 }

References fl_engine_signals, g_signal_emit(), SIGNAL_UPDATE_SEMANTICS, and user_data.

Referenced by fl_engine_start().

## ◆ free_locale()

static void free_locale | ( | FlutterLocale * | locale | ) |
| static

Definition at line 193 of file fl_engine.cc.

193 {
194 free(const_cast<gchar*>(locale->language_code));
195 free(const_cast<gchar*>(locale->country_code));
196 free(locale);
197 }

Referenced by setup_locales().

## ◆ G_DEFINE_TYPE_WITH_CODE()

G_DEFINE_TYPE_WITH_CODE | ( | FlEngine | ,
|  | fl_engine | ,
|  | G_TYPE_OBJECT | ,
|  | G_IMPLEMENT_INTERFACE(fl_plugin_registry_get_type(), fl_engine_plugin_registry_iface_init) |
| ) |  |

Definition at line 118 of file fl_engine.cc.

125 { PROP_0, PROP_BINARY_MESSENGER, PROP_LAST };
PROP_LAST
@ PROP_LAST
Definition: fl_accessible_node.cc:64
PROP_0
@ PROP_0
Definition: fl_accessible_node.cc:64

References PROP_0, and PROP_LAST.

## ◆ parse_locale()

static void parse_locale | ( | const gchar * | locale,
|  | gchar ** | language,
|  | gchar ** | territory,
|  | gchar ** | codeset,
|  | gchar ** | modifier
| ) |  |
| static

Definition at line 128 of file fl_engine.cc.

132 {
133 gchar* l = g_strdup(locale);
134
135 // Locales are in the form "language[_territory][.codeset][@modifier]"
136 gchar* match = strrchr(l, '@');
137 if (match != nullptr) {
138 if (modifier != nullptr) {
139 *modifier = g_strdup(match + 1);
140 }
141 *match = '\0';
142 } else if (modifier != nullptr) {
143 *modifier = nullptr;
144 }
145
146 match = strrchr(l, '.');
147 if (match != nullptr) {
148 if (codeset != nullptr) {
149 *codeset = g_strdup(match + 1);
150 }
151 *match = '\0';
152 } else if (codeset != nullptr) {
153 *codeset = nullptr;
154 }
155
156 match = strrchr(l, '_');
157 if (match != nullptr) {
158 if (territory != nullptr) {
159 *territory = g_strdup(match + 1);
160 }
161 *match = '\0';
162 } else if (territory != nullptr) {
163 *territory = nullptr;
164 }
165
166 if (language != nullptr) {
167 *language = l;
168 }
169 }

Referenced by setup_locales().

## ◆ send_key_event_cb()

static void send_key_event_cb | ( | bool | handled,
|  | void * | user_data
| ) |  |
| static

Definition at line 1319 of file fl_engine.cc.

1319 {
1320 g_autoptr(GTask) task = G_TASK(user_data);
1321 gboolean* return_value = g_new0(gboolean, 1);
1322 *return_value = handled;
1323 g_task_return_pointer(task, return_value, g_free);
1324 }

References g_autoptr(), and user_data.

Referenced by fl_engine_send_key_event().

## ◆ setup_keyboard()

static void setup_keyboard | ( | FlEngine * | self | ) |
| static

Definition at line 490 of file fl_engine.cc.

490 {
491 g_clear_object(&self->keyboard_manager);
492 self->keyboard_manager = fl_keyboard_manager_new(self);
493
494 g_clear_object(&self->keyboard_handler);
495 self->keyboard_handler =
496 fl_keyboard_handler_new(self->binary_messenger, self->keyboard_manager);
497
498 GtkWidget* widget =
499 self->text_input_handler != nullptr
500 ? fl_text_input_handler_get_widget(self->text_input_handler)
501 : nullptr;
502 g_clear_object(&self->text_input_handler);
503 self->text_input_handler = fl_text_input_handler_new(self->binary_messenger);
504 if (widget != nullptr) {
505 fl_text_input_handler_set_widget(self->text_input_handler, widget);
506 }
507 }
fl_keyboard_handler_new
FlKeyboardHandler * fl_keyboard_handler_new(FlBinaryMessenger *messenger, FlKeyboardManager *keyboard_manager)
Definition: fl_keyboard_handler.cc:63
fl_text_input_handler_new
FlTextInputHandler * fl_text_input_handler_new(FlBinaryMessenger *messenger)
Definition: fl_text_input_handler.cc:422
fl_text_input_handler_set_widget
void fl_text_input_handler_set_widget(FlTextInputHandler *self, GtkWidget *widget)
Definition: fl_text_input_handler.cc:464
fl_text_input_handler_get_widget
GtkWidget * fl_text_input_handler_get_widget(FlTextInputHandler *self)
Definition: fl_text_input_handler.cc:472

References fl_keyboard_handler_new(), fl_keyboard_manager_new(), fl_text_input_handler_get_widget(), fl_text_input_handler_new(), and fl_text_input_handler_set_widget().

Referenced by fl_engine_on_pre_engine_restart_cb(), and fl_engine_start().

## ◆ setup_locales()

static void setup_locales | ( | FlEngine * | self | ) |
| static

Definition at line 200 of file fl_engine.cc.

200 {
201 const gchar* const* languages = g_get_language_names();
202 g_autoptr(GPtrArray) locales_array = g_ptr_array_new_with_free_func(
203 reinterpret_cast<GDestroyNotify>(free_locale));
204 for (int i = 0; languages[i] != nullptr; i++) {
205 g_autofree gchar* locale_string = g_strstrip(g_strdup(languages[i]));
206
207 // Ignore empty locales, caused by settings like `LANGUAGE=pt_BR:`
208 if (strcmp(locale_string, "") == 0) {
209 continue;
210 }
211
212 g_autofree gchar* language = nullptr;
213 g_autofree gchar* territory = nullptr;
214 parse_locale(locale_string, &language, &territory, nullptr, nullptr);
215
216 // Ignore duplicate locales, caused by settings like `LANGUAGE=C` (returns
217 // two "C") or `LANGUAGE=en:en`
218 gboolean has_locale = FALSE;
219 for (guint j = 0; !has_locale && j < locales_array->len; j++) {
220 FlutterLocale* locale =
221 reinterpret_cast<FlutterLocale*>(g_ptr_array_index(locales_array, j));
222 has_locale = g_strcmp0(locale->language_code, language) == 0 &&
223 g_strcmp0(locale->country_code, territory) == 0;
224 }
225 if (has_locale) {
226 continue;
227 }
228
229 FlutterLocale* locale =
230 static_cast<FlutterLocale*>(g_malloc0(sizeof(FlutterLocale)));
231 g_ptr_array_add(locales_array, locale);
232 locale->struct_size = sizeof(FlutterLocale);
233 locale->language_code =
234 reinterpret_cast<const gchar*>(g_steal_pointer(&language));
235 locale->country_code =
236 reinterpret_cast<const gchar*>(g_steal_pointer(&territory));
237 locale->script_code = nullptr;
238 locale->variant_code = nullptr;
239 }
240 FlutterLocale** locales =
241 reinterpret_cast<FlutterLocale**>(locales_array->pdata);
242 FlutterEngineResult result = self->embedder_api.UpdateLocales(
243 self->engine, const_cast<const FlutterLocale**>(locales),
244 locales_array->len);
245 if (result != kSuccess) {
246 g_warning("Failed to set up Flutter locales");
247 }
248 }
parse_locale
static void parse_locale(const gchar *locale, gchar **language, gchar **territory, gchar **codeset, gchar **modifier)
Definition: fl_engine.cc:128
free_locale
static void free_locale(FlutterLocale *locale)
Definition: fl_engine.cc:193
i
int i
Definition: fl_socket_accessible.cc:18

References free_locale(), g_autoptr(), i, and parse_locale().

Referenced by fl_engine_start().

## ◆ view_added_cb()

static void view_added_cb | ( | const FlutterAddViewResult * | result | ) |
| static

Definition at line 171 of file fl_engine.cc.

171 {
172 g_autoptr(GTask) task = G_TASK(result->user_data);
173
174 if (result->added) {
175 g_task_return_boolean(task, TRUE);
176 } else {
177 g_task_return_new_error(task, fl_engine_error_quark(),
178 FL_ENGINE_ERROR_FAILED, "Failed to add view");
179 }
180 }

References FL_ENGINE_ERROR_FAILED, fl_engine_error_quark(), g_autoptr(), and TRUE.

Referenced by fl_engine_add_view().

## ◆ view_removed_cb()

static void view_removed_cb | ( | const FlutterRemoveViewResult * | result | ) |
| static

Definition at line 182 of file fl_engine.cc.

182 {
183 g_autoptr(GTask) task = G_TASK(result->user_data);
184
185 if (result->removed) {
186 g_task_return_boolean(task, TRUE);
187 } else {
188 g_task_return_new_error(task, fl_engine_error_quark(),
189 FL_ENGINE_ERROR_FAILED, "Failed to remove view");
190 }
191 }

References FL_ENGINE_ERROR_FAILED, fl_engine_error_quark(), g_autoptr(), and TRUE.

Referenced by fl_engine_remove_view().

## Variable Documentation

## ◆ fl_engine_signals

guint fl_engine_signals[LAST_SIGNAL]
| static

Definition at line 116 of file fl_engine.cc.

Referenced by fl_engine_class_init(), fl_engine_on_pre_engine_restart_cb(), and fl_engine_update_semantics_cb().

## ◆ kMousePointerDeviceId

constexpr int32_t kMousePointerDeviceId = 0
| static constexpr

Definition at line 36 of file fl_engine.cc.

Referenced by fl_engine_send_mouse_pointer_event().

## ◆ kPlatformTaskRunnerIdentifier

constexpr size_t kPlatformTaskRunnerIdentifier = 1
| static constexpr

Definition at line 32 of file fl_engine.cc.

Referenced by fl_engine_start().

## ◆ kPointerPanZoomDeviceId

constexpr int32_t kPointerPanZoomDeviceId = 1
| static constexpr

Definition at line 37 of file fl_engine.cc.

Referenced by fl_engine_send_pointer_pan_zoom_event().