[HTML5] Implement mouse/touch/key events in JS library.

This makes us more independent from emscripten libraries, giving us more
control on the application lifecycle.

1 files changed, 20 insertions, 18 deletions

diff --git a/platform/javascript/display_server_javascript.h b/platform/javascript/display_server_javascript.h
index 1863ddefeb..4e2da4e96d 100644
--- a/platform/javascript/display_server_javascript.h
+++ b/platform/javascript/display_server_javascript.h
@@ -38,6 +38,19 @@
 
 class DisplayServerJavaScript : public DisplayServer {
 private:
+	struct JSTouchEvent {
+		uint32_t identifier[32] = { 0 };
+		double coords[64] = { 0 };
+	};
+	JSTouchEvent touch_event;
+
+	struct JSKeyEvent {
+		char code[32] = { 0 };
+		char key[32] = { 0 };
+		uint8_t modifiers[4] = { 0 };
+	};
+	JSKeyEvent key_event;
+
 	WindowMode window_mode = WINDOW_MODE_WINDOWED;
 	ObjectID window_attached_instance_id = {};
 
@@ -47,44 +60,33 @@ private:
 	Callable drop_files_callback;
 
 	String clipboard;
-	Ref<InputEventKey> deferred_key_event;
 	Point2 touches[32];
 
 	char canvas_id[256] = { 0 };
 	bool cursor_inside_canvas = true;
 	CursorShape cursor_shape = CURSOR_ARROW;
 	Point2i last_click_pos = Point2(-100, -100); // TODO check this again.
-	double last_click_ms = 0;
+	uint64_t last_click_ms = 0;
 	int last_click_button_index = -1;
 
 	bool swap_cancel_ok = false;
 
 	// utilities
-	static Point2 compute_position_in_canvas(int p_x, int p_y);
 	static void focus_canvas();
 	static bool is_canvas_focused();
-	template <typename T>
-	static void dom2godot_mod(T *emscripten_event_ptr, Ref<InputEventWithModifiers> godot_event);
-	static Ref<InputEventKey> setup_key_event(const EmscriptenKeyboardEvent *emscripten_event);
+	static void dom2godot_mod(Ref<InputEventWithModifiers> ev, int p_mod);
 	static const char *godot2dom_cursor(DisplayServer::CursorShape p_shape);
 
 	// events
 	static EM_BOOL fullscreen_change_callback(int p_event_type, const EmscriptenFullscreenChangeEvent *p_event, void *p_user_data);
 
-	static EM_BOOL keydown_callback(int p_event_type, const EmscriptenKeyboardEvent *p_event, void *p_user_data);
-	static EM_BOOL keypress_callback(int p_event_type, const EmscriptenKeyboardEvent *p_event, void *p_user_data);
-	static EM_BOOL keyup_callback(int p_event_type, const EmscriptenKeyboardEvent *p_event, void *p_user_data);
-
+	static int mouse_button_callback(int p_pressed, int p_button, double p_x, double p_y, int p_modifiers);
+	static void mouse_move_callback(double p_x, double p_y, double p_rel_x, double p_rel_y, int p_modifiers);
+	static int mouse_wheel_callback(double p_delta_x, double p_delta_y);
+	static void touch_callback(int p_type, int p_count);
+	static void key_callback(int p_pressed, int p_repeat, int p_modifiers);
 	static void vk_input_text_callback(const char *p_text, int p_cursor);
 
-	static EM_BOOL mousemove_callback(int p_event_type, const EmscriptenMouseEvent *p_event, void *p_user_data);
-	static EM_BOOL mouse_button_callback(int p_event_type, const EmscriptenMouseEvent *p_event, void *p_user_data);
-
-	static EM_BOOL wheel_callback(int p_event_type, const EmscriptenWheelEvent *p_event, void *p_user_data);
-
-	static EM_BOOL touch_press_callback(int p_event_type, const EmscriptenTouchEvent *p_event, void *p_user_data);
-	static EM_BOOL touchmove_callback(int p_event_type, const EmscriptenTouchEvent *p_event, void *p_user_data);
-
 	static EM_BOOL blur_callback(int p_event_type, const EmscriptenFocusEvent *p_event, void *p_user_data);
 
 	static void gamepad_callback(int p_index, int p_connected, const char *p_id, const char *p_guid);