Add native window handle to platform view (#136)

* Add native window handle to platform view

* This is a preparation to independently handle something(e.g. imf) in platform view.

Signed-off-by: MuHong Byun <mh.byun@samsung.com>

* Apply review's comment

Signed-off-by: MuHong Byun <mh.byun@samsung.com>

Author: bwikbs

shell/platform/tizen/flutter_tizen.cc

@@ -143,6 +143,7 @@ void FlutterRegisterViewFactory(
     FlutterDesktopPluginRegistrarRef registrar,
     const char* view_type,
     std::unique_ptr<PlatformViewFactory> view_factory) {
+  view_factory->SetWindow(registrar->engine->renderer->GetWindowHandle());
   registrar->engine->platform_view_channel->ViewFactories().insert(
       std::pair<std::string, std::unique_ptr<PlatformViewFactory>>(
           view_type, std::move(view_factory)));

shell/platform/tizen/public/flutter_platform_view.h

@@ -16,15 +16,18 @@ using ByteMessage = std::vector<uint8_t>;
 
 class PlatformView {
  public:
-  PlatformView(flutter::PluginRegistrar* registrar, int viewId)
-      : registrar_(registrar),
-        viewId_(viewId),
-        textureId_(0),
-        isFocused_(false) {}
+  PlatformView(flutter::PluginRegistrar* registrar,
+               int view_id,
+               void* platform_window)
+      : platform_window_(platform_window),
+        registrar_(registrar),
+        view_id_(view_id),
+        texture_id_(0),
+        is_focused_(false) {}
   virtual ~PlatformView() {}
-  int GetViewId() { return viewId_; }
-  int GetTextureId() { return textureId_; }
-  void SetTextureId(int textureId) { textureId_ = textureId; }
+  int GetViewId() { return view_id_; }
+  int GetTextureId() { return texture_id_; }
+  void SetTextureId(int texture_id) { texture_id_ = texture_id; }
   flutter::PluginRegistrar* GetPluginRegistrar() { return registrar_; }
   virtual void Dispose() = 0;
   virtual void Resize(double width, double height) = 0;
@@ -36,8 +39,8 @@ class PlatformView {
                      double dy) = 0;
   virtual void SetDirection(int direction) = 0;
   virtual void ClearFocus() = 0;
-  void SetFocus(bool f) { isFocused_ = f; }
-  bool IsFocused() { return isFocused_; }
+  void SetFocus(bool f) { is_focused_ = f; }
+  bool IsFocused() { return is_focused_; }
 
   // Key input event
   virtual void DispatchKeyDownEvent(Ecore_Event_Key* key) = 0;
@@ -47,11 +50,14 @@ class PlatformView {
 
   virtual void SetSoftwareKeyboardContext(Ecore_IMF_Context* context) = 0;
 
+ protected:
+  void* platform_window_;
+
  private:
   flutter::PluginRegistrar* registrar_;
-  int viewId_;
-  int textureId_;
-  bool isFocused_;
+  int view_id_;
+  int texture_id_;
+  bool is_focused_;
 };
 
 class PlatformViewFactory {
@@ -64,11 +70,15 @@ class PlatformViewFactory {
   const flutter::MessageCodec<flutter::EncodableValue>& GetCodec() {
     return codec_;
   }
-  virtual PlatformView* Create(int viewId,
+  virtual PlatformView* Create(int view_id,
                                double width,
                                double height,
-                               const ByteMessage& createParams) = 0;
+                               const ByteMessage& parameters) = 0;
   virtual void Dispose() = 0;
+  void SetWindow(void* platform_window) { platform_window_ = platform_window; }
+
+ protected:
+  void* platform_window_;
 
  private:
   flutter::PluginRegistrar* registrar_;

shell/platform/tizen/tizen_renderer.h

@@ -35,6 +35,7 @@ class TizenRenderer {
   virtual WindowGeometry GetCurrentGeometry() = 0;
   virtual int32_t GetDpi() = 0;
   virtual uintptr_t GetWindowId() = 0;
+  virtual void* GetWindowHandle() = 0;
 
   virtual void SetRotate(int angle) = 0;
   virtual void ResizeWithRotation(int32_t x,

shell/platform/tizen/tizen_renderer_ecore_wl2.cc

@@ -232,6 +232,10 @@ uintptr_t TizenRendererEcoreWl2::GetWindowId() {
   return ecore_wl2_window_id_get(ecore_wl2_window_);
 }
 
+void* TizenRendererEcoreWl2::GetWindowHandle() {
+  return ecore_wl2_window_;
+}
+
 bool TizenRendererEcoreWl2::InitializeRenderer() {
   int32_t width, height;
   if (!SetupDisplay(&width, &height)) {

shell/platform/tizen/tizen_renderer_ecore_wl2.h

@@ -28,6 +28,7 @@ class TizenRendererEcoreWl2 : public TizenRenderer {
   WindowGeometry GetCurrentGeometry() override;
   int32_t GetDpi() override;
   uintptr_t GetWindowId() override;
+  void* GetWindowHandle() override;
 
   void ResizeWithRotation(int32_t x,
                           int32_t y,

shell/platform/tizen/tizen_renderer_evas_gl.cc

@@ -568,6 +568,10 @@ uintptr_t TizenRendererEvasGL::GetWindowId() {
       ecore_evas_ecore_evas_get(evas_object_evas_get(evas_window_)));
 }
 
+void* TizenRendererEvasGL::GetWindowHandle() {
+  return nullptr;
+}
+
 Evas_Object* TizenRendererEvasGL::GetImageHandle() {
   return graphics_adapter_;
 }

shell/platform/tizen/tizen_renderer_evas_gl.h

@@ -29,6 +29,7 @@ class TizenRendererEvasGL : public TizenRenderer {
   WindowGeometry GetCurrentGeometry() override;
   int32_t GetDpi() override;
   uintptr_t GetWindowId() override;
+  void* GetWindowHandle() override;
 
   void ResizeWithRotation(int32_t x,
                           int32_t y,