Implement FlutterDesktopViewGetResourceId (#52)

Author: xiaowei-guan

flutter/shell/platform/tizen/flutter_tizen.cc

@@ -240,6 +240,11 @@ void* FlutterDesktopViewGetNativeHandle(FlutterDesktopViewRef view_ref) {
   return view->tizen_view()->GetNativeHandle();
 }
 
+uint32_t FlutterDesktopViewGetResourceId(FlutterDesktopViewRef view_ref) {
+  flutter::FlutterTizenView* view = ViewFromHandle(view_ref);
+  return view->tizen_view()->GetResourceId();
+}
+
 void FlutterDesktopViewResize(FlutterDesktopViewRef view,
                               int32_t width,
                               int32_t height) {

flutter/shell/platform/tizen/public/flutter_tizen.h

@@ -204,6 +204,10 @@ FLUTTER_EXPORT void FlutterDesktopViewDestroy(FlutterDesktopViewRef view);
 FLUTTER_EXPORT void* FlutterDesktopViewGetNativeHandle(
     FlutterDesktopViewRef view);
 
+// Returns the resource id of current window.
+FLUTTER_EXPORT uint32_t
+FlutterDesktopViewGetResourceId(FlutterDesktopViewRef view);
+
 // Resizes the view.
 // @warning This API is a work-in-progress and may change.
 FLUTTER_EXPORT void FlutterDesktopViewResize(FlutterDesktopViewRef view,

flutter/shell/platform/tizen/tizen_view_base.h

@@ -41,6 +41,8 @@ class TizenViewBase {
   // Returns the dpi of the screen.
   virtual int32_t GetDpi() = 0;
 
+  virtual uint32_t GetResourceId() = 0;
+
   virtual void UpdateFlutterCursor(const std::string& kind) = 0;
 
   // Sets the delegate used to communicate state changes from render target to

flutter/shell/platform/tizen/tizen_view_elementary.cc

@@ -362,6 +362,10 @@ uintptr_t TizenViewElementary::GetWindowId() {
       ecore_evas_ecore_evas_get(evas_object_evas_get(container_)));
 }
 
+uint32_t TizenViewElementary::GetResourceId() {
+  return 0;
+}
+
 void TizenViewElementary::Show() {
   evas_object_show(container_);
   evas_object_show(image_);

flutter/shell/platform/tizen/tizen_view_elementary.h

@@ -35,6 +35,8 @@ class TizenViewElementary : public TizenView {
 
   uintptr_t GetWindowId() override;
 
+  uint32_t GetResourceId() override;
+
   void Show() override;
 
   void UpdateFlutterCursor(const std::string& kind) override;

flutter/shell/platform/tizen/tizen_view_nui.cc

@@ -66,6 +66,10 @@ uintptr_t TizenViewNui::GetWindowId() {
   return default_window_id_;
 }
 
+uint32_t TizenViewNui::GetResourceId() {
+  return 0;
+}
+
 void TizenViewNui::Show() {
   // Do nothing.
 }

flutter/shell/platform/tizen/tizen_view_nui.h

@@ -38,6 +38,8 @@ class TizenViewNui : public TizenView {
 
   uintptr_t GetWindowId() override;
 
+  uint32_t GetResourceId() override;
+
   void Show() override;
 
   void RequestRendering();

flutter/shell/platform/tizen/tizen_window_ecore_wl2.cc

@@ -459,6 +459,66 @@ uintptr_t TizenWindowEcoreWl2::GetWindowId() {
   return ecore_wl2_window_id_get(ecore_wl2_window_);
 }
 
+void HandleResourceId(void* data, tizen_resource* tizen_resource, uint32_t id) {
+  if (data) {
+    *reinterpret_cast<uint32_t*>(data) = id;
+  }
+}
+
+uint32_t TizenWindowEcoreWl2::GetResourceId() {
+  if (resource_id_ > 0) {
+    return resource_id_;
+  }
+  struct wl_registry* registry =
+      ecore_wl2_display_registry_get(ecore_wl2_display_);
+  if (!registry) {
+    FT_LOG(Error) << "Could not retreive wl_registry from the display.";
+    return 0;
+  }
+
+  static const struct tizen_resource_listener tz_resource_listener = {
+      HandleResourceId};
+  Eina_Iterator* iter = ecore_wl2_display_globals_get(ecore_wl2_display_);
+  Ecore_Wl2_Global* global = nullptr;
+  struct tizen_surface* surface = nullptr;
+  EINA_ITERATOR_FOREACH(iter, global) {
+    if (strcmp(global->interface, "tizen_surface") == 0) {
+      surface = static_cast<tizen_surface*>(wl_registry_bind(
+          registry, global->id, &tizen_surface_interface, global->version));
+      break;
+    }
+  }
+  eina_iterator_free(iter);
+  if (!surface) {
+    FT_LOG(Error) << "Failed to initialize the tizen surface.";
+    return 0;
+  }
+
+  struct tizen_resource* resource = tizen_surface_get_tizen_resource(
+      surface, ecore_wl2_window_surface_get(ecore_wl2_window_));
+
+  if (!resource) {
+    FT_LOG(Error) << "Failed to get tizen resource.";
+    tizen_surface_destroy(surface);
+    return 0;
+  }
+
+  struct wl_event_queue* event_queue = wl_display_create_queue(wl2_display_);
+  if (!event_queue) {
+    FT_LOG(Error) << "Failed to create wl_event_queue.";
+    tizen_resource_destroy(resource);
+    tizen_surface_destroy(surface);
+    return 0;
+  }
+  wl_proxy_set_queue(reinterpret_cast<struct wl_proxy*>(resource), event_queue);
+  tizen_resource_add_listener(resource, &tz_resource_listener, &resource_id_);
+  wl_display_roundtrip_queue(wl2_display_, event_queue);
+  tizen_resource_destroy(resource);
+  tizen_surface_destroy(surface);
+  wl_event_queue_destroy(event_queue);
+  return resource_id_;
+}
+
 void TizenWindowEcoreWl2::SetPreferredOrientations(
     const std::vector<int>& rotations) {
   ecore_wl2_window_available_rotations_set(ecore_wl2_window_, rotations.data(),

flutter/shell/platform/tizen/tizen_window_ecore_wl2.h

@@ -44,6 +44,8 @@ class TizenWindowEcoreWl2 : public TizenWindow {
 
   uintptr_t GetWindowId() override;
 
+  uint32_t GetResourceId() override;
+
   void SetPreferredOrientations(const std::vector<int>& rotations) override;
 
   void BindKeys(const std::vector<std::string>& keys) override;
@@ -77,6 +79,7 @@ class TizenWindowEcoreWl2 : public TizenWindow {
   std::vector<Ecore_Event_Handler*> ecore_event_handlers_;
 
   tizen_policy* tizen_policy_ = nullptr;
+  uint32_t resource_id_ = 0;
 };
 
 }  // namespace flutter

flutter/shell/platform/tizen/tizen_window_elementary.cc

@@ -413,6 +413,10 @@ uintptr_t TizenWindowElementary::GetWindowId() {
       ecore_evas_ecore_evas_get(evas_object_evas_get(elm_win_)));
 }
 
+uint32_t TizenWindowElementary::GetResourceId() {
+  return 0;
+}
+
 void TizenWindowElementary::SetPreferredOrientations(
     const std::vector<int>& rotations) {
   elm_win_wm_rotation_available_rotations_set(elm_win_, rotations.data(),