Embedding game process in editor

editor/plugins/game_view_plugin.h

@@ -37,6 +37,10 @@
 #include "scene/debugger/scene_debugger.h"
 #include "scene/gui/box_container.h"
 
+class EmbeddedProcess;
+class VSeparator;
+class WindowWrapper;
+
 class GameViewDebugger : public EditorDebuggerPlugin {
 	GDCLASS(GameViewDebugger, EditorDebuggerPlugin);
 
@@ -82,11 +86,24 @@ class GameView : public VBoxContainer {
 		CAMERA_RESET_3D,
 		CAMERA_MODE_INGAME,
 		CAMERA_MODE_EDITORS,
+		EMBED_RUN_GAME_EMBEDDED,
+		EMBED_MAKE_FLOATING_ON_PLAY,
 	};
 
+	inline static GameView *singleton = nullptr;
+
 	Ref<GameViewDebugger> debugger;
+	WindowWrapper *window_wrapper = nullptr;
 
 	int active_sessions = 0;
+	int screen_index_before_start = -1;
+
+	bool embed_on_play = true;
+	bool make_floating_on_play = true;
+
+	Rect2i floating_window_rect;
+	int floating_window_screen = -1;
+	Rect2i floating_window_screen_rect;
 
 	Button *suspend_button = nullptr;
 	Button *next_frame_button = nullptr;
@@ -99,7 +116,14 @@ class GameView : public VBoxContainer {
 	Button *camera_override_button = nullptr;
 	MenuButton *camera_override_menu = nullptr;
 
+	VSeparator *embedding_separator = nullptr;
+	Button *keep_aspect_button = nullptr;
+	MenuButton *embed_options_menu = nullptr;
+	Label *game_size_label = nullptr;
+
 	Panel *panel = nullptr;
+	EmbeddedProcess *embedded_process = nullptr;
+	Label *state_label = nullptr;
 
 	void _sessions_changed();
 
@@ -109,12 +133,31 @@ class GameView : public VBoxContainer {
 
 	void _node_type_pressed(int p_option);
 	void _select_mode_pressed(int p_option);
+	void _embed_options_menu_menu_id_pressed(int p_id);
+	void _keep_aspect_button_pressed();
+
+	void _play_pressed();
+	static void _instance_starting_static(int p_idx, List<String> &r_arguments);
+	void _instance_starting(int p_idx, List<String> &r_arguments);
+	void _stop_pressed();
+	void _embedding_completed();
+	void _embedding_failed();
+	void _embedded_process_updated();
+	void _project_settings_changed();
+
+	void _update_ui();
+	void _update_embed_menu_options();
+	void _update_embed_window_size();
+	void _update_arguments_for_instance(int p_idx, List<String> &r_arguments);
 
 	void _hide_selection_toggled(bool p_pressed);
 
 	void _camera_override_button_toggled(bool p_pressed);
 	void _camera_override_menu_id_pressed(int p_id);
 
+	void _window_before_closing();
+	void _update_floating_window_settings();
+
 protected:
 	void _notification(int p_what);
 
@@ -122,16 +165,26 @@ public:
 	void set_state(const Dictionary &p_state);
 	Dictionary get_state() const;
 
-	GameView(Ref<GameViewDebugger> p_debugger);
+	void set_window_layout(Ref<ConfigFile> p_layout);
+	void get_window_layout(Ref<ConfigFile> p_layout);
+
+	GameView(Ref<GameViewDebugger> p_debugger, WindowWrapper *p_wrapper);
 };
 
 class GameViewPlugin : public EditorPlugin {
 	GDCLASS(GameViewPlugin, EditorPlugin);
 
 	GameView *game_view = nullptr;
+	WindowWrapper *window_wrapper = nullptr;
 
 	Ref<GameViewDebugger> debugger;
 
+	String last_editor;
+
+	void _window_visibility_changed(bool p_visible);
+	void _save_last_editor(const String &p_editor);
+	void _focus_another_editor();
+
 protected:
 	void _notification(int p_what);
 
@@ -141,6 +194,10 @@ public:
 	virtual void edit(Object *p_object) override {}
 	virtual bool handles(Object *p_object) const override { return false; }
 	virtual void make_visible(bool p_visible) override;
+	virtual void selected_notify() override;
+
+	virtual void set_window_layout(Ref<ConfigFile> p_layout) override;
+	virtual void get_window_layout(Ref<ConfigFile> p_layout) override;
 
 	virtual void set_state(const Dictionary &p_state) override;
 	virtual Dictionary get_state() const override;