feat(gamepad): improve gamepad behavior with slider and popup_menu

core/input/input_event.cpp

@@ -1096,6 +1096,15 @@ String InputEventJoypadMotion::to_string() {
 	return vformat("InputEventJoypadMotion: axis=%d, axis_value=%.2f", axis, axis_value);
 }
 
+Ref<InputEventJoypadMotion> InputEventJoypadMotion::create_reference(JoyAxis p_axis, float p_value) {
+	Ref<InputEventJoypadMotion> ie;
+	ie.instantiate();
+	ie->set_axis(p_axis);
+	ie->set_axis_value(p_value);
+
+	return ie;
+}
+
 void InputEventJoypadMotion::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_axis", "axis"), &InputEventJoypadMotion::set_axis);
 	ClassDB::bind_method(D_METHOD("get_axis"), &InputEventJoypadMotion::get_axis);

core/input/input_event.h

@@ -321,6 +321,8 @@ public:
 	virtual String as_text() const override;
 	virtual String to_string() override;
 
+	static Ref<InputEventJoypadMotion> create_reference(JoyAxis p_axis, float p_value);
+
 	InputEventJoypadMotion() {}
 };
 

core/input/input_map.cpp

@@ -399,21 +399,25 @@ const HashMap<String, List<Ref<InputEvent>>> &InputMap::get_builtins() {
 	inputs = List<Ref<InputEvent>>();
 	inputs.push_back(InputEventKey::create_reference(Key::LEFT));
 	inputs.push_back(InputEventJoypadButton::create_reference(JoyButton::DPAD_LEFT));
+	inputs.push_back(InputEventJoypadMotion::create_reference(JoyAxis::LEFT_X, -1.0));
 	default_builtin_cache.insert("ui_left", inputs);
 
 	inputs = List<Ref<InputEvent>>();
 	inputs.push_back(InputEventKey::create_reference(Key::RIGHT));
 	inputs.push_back(InputEventJoypadButton::create_reference(JoyButton::DPAD_RIGHT));
+	inputs.push_back(InputEventJoypadMotion::create_reference(JoyAxis::LEFT_X, 1.0));
 	default_builtin_cache.insert("ui_right", inputs);
 
 	inputs = List<Ref<InputEvent>>();
 	inputs.push_back(InputEventKey::create_reference(Key::UP));
 	inputs.push_back(InputEventJoypadButton::create_reference(JoyButton::DPAD_UP));
+	inputs.push_back(InputEventJoypadMotion::create_reference(JoyAxis::LEFT_Y, -1.0));
 	default_builtin_cache.insert("ui_up", inputs);
 
 	inputs = List<Ref<InputEvent>>();
 	inputs.push_back(InputEventKey::create_reference(Key::DOWN));
 	inputs.push_back(InputEventJoypadButton::create_reference(JoyButton::DPAD_DOWN));
+	inputs.push_back(InputEventJoypadMotion::create_reference(JoyAxis::LEFT_Y, 1.0));
 	default_builtin_cache.insert("ui_down", inputs);
 
 	inputs = List<Ref<InputEvent>>();

scene/gui/popup_menu.cpp

@@ -295,7 +295,18 @@ void PopupMenu::gui_input(const Ref<InputEvent> &p_event) {
 	ERR_FAIL_COND(p_event.is_null());
 
 	if (!items.is_empty()) {
+		Input *input = Input::get_singleton();
+		Ref<InputEventJoypadMotion> joypadmotion_event = p_event;
+		Ref<InputEventJoypadButton> joypadbutton_event = p_event;
+		bool is_joypad_event = (joypadmotion_event.is_valid() || joypadbutton_event.is_valid());
+
 		if (p_event->is_action("ui_down", true) && p_event->is_pressed()) {
+			if (is_joypad_event) {
+				if (!input->is_action_just_pressed("ui_down", true)) {
+					return;
+				}
+				set_process_internal(true);
+			}
 			int search_from = mouse_over + 1;
 			if (search_from >= items.size()) {
 				search_from = 0;
@@ -328,6 +339,12 @@ void PopupMenu::gui_input(const Ref<InputEvent> &p_event) {
 				}
 			}
 		} else if (p_event->is_action("ui_up", true) && p_event->is_pressed()) {
+			if (is_joypad_event) {
+				if (!input->is_action_just_pressed("ui_up", true)) {
+					return;
+				}
+				set_process_internal(true);
+			}
 			int search_from = mouse_over - 1;
 			if (search_from < 0) {
 				search_from = items.size() - 1;
@@ -905,6 +922,82 @@ void PopupMenu::_notification(int p_what) {
 		} break;
 
 		case NOTIFICATION_INTERNAL_PROCESS: {
+			Input *input = Input::get_singleton();
+
+			if (input->is_action_just_released("ui_up") || input->is_action_just_released("ui_down")) {
+				gamepad_event_delay_ms = DEFAULT_GAMEPAD_EVENT_DELAY_MS;
+				set_process_internal(false);
+				return;
+			}
+			gamepad_event_delay_ms -= get_process_delta_time();
+			if (gamepad_event_delay_ms <= 0) {
+				if (input->is_action_pressed("ui_down")) {
+					gamepad_event_delay_ms = GAMEPAD_EVENT_REPEAT_RATE_MS + gamepad_event_delay_ms;
+					int search_from = mouse_over + 1;
+					if (search_from >= items.size()) {
+						search_from = 0;
+					}
+
+					bool match_found = false;
+					for (int i = search_from; i < items.size(); i++) {
+						if (!items[i].separator && !items[i].disabled) {
+							mouse_over = i;
+							emit_signal(SNAME("id_focused"), i);
+							scroll_to_item(i);
+							control->queue_redraw();
+							match_found = true;
+							break;
+						}
+					}
+
+					if (!match_found) {
+						// If the last item is not selectable, try re-searching from the start.
+						for (int i = 0; i < search_from; i++) {
+							if (!items[i].separator && !items[i].disabled) {
+								mouse_over = i;
+								emit_signal(SNAME("id_focused"), i);
+								scroll_to_item(i);
+								control->queue_redraw();
+								break;
+							}
+						}
+					}
+				}
+
+				if (input->is_action_pressed("ui_up")) {
+					gamepad_event_delay_ms = GAMEPAD_EVENT_REPEAT_RATE_MS + gamepad_event_delay_ms;
+					int search_from = mouse_over - 1;
+					if (search_from < 0) {
+						search_from = items.size() - 1;
+					}
+
+					bool match_found = false;
+					for (int i = search_from; i >= 0; i--) {
+						if (!items[i].separator && !items[i].disabled) {
+							mouse_over = i;
+							emit_signal(SNAME("id_focused"), i);
+							scroll_to_item(i);
+							control->queue_redraw();
+							match_found = true;
+							break;
+						}
+					}
+
+					if (!match_found) {
+						// If the first item is not selectable, try re-searching from the end.
+						for (int i = items.size() - 1; i >= search_from; i--) {
+							if (!items[i].separator && !items[i].disabled) {
+								mouse_over = i;
+								emit_signal(SNAME("id_focused"), i);
+								scroll_to_item(i);
+								control->queue_redraw();
+								break;
+							}
+						}
+					}
+				}
+			}
+
 			// Only used when using operating system windows.
 			if (!activated_by_keyboard && !is_embedded() && autohide_areas.size()) {
 				Point2 mouse_pos = DisplayServer::get_singleton()->mouse_get_position();

scene/gui/popup_menu.h

@@ -133,6 +133,10 @@ class PopupMenu : public Popup {
 	ScrollContainer *scroll_container = nullptr;
 	Control *control = nullptr;
 
+	const float DEFAULT_GAMEPAD_EVENT_DELAY_MS = 0.5;
+	const float GAMEPAD_EVENT_REPEAT_RATE_MS = 1.0 / 20;
+	float gamepad_event_delay_ms = DEFAULT_GAMEPAD_EVENT_DELAY_MS;
+
 	struct ThemeCache {
 		Ref<StyleBox> panel_style;
 		Ref<StyleBox> hover_style;

scene/gui/slider.cpp

@@ -112,30 +112,58 @@ void Slider::gui_input(const Ref<InputEvent> &p_event) {
 		}
 	}
 
+	Input *input = Input::get_singleton();
+	Ref<InputEventJoypadMotion> joypadmotion_event = p_event;
+	Ref<InputEventJoypadButton> joypadbutton_event = p_event;
+	bool is_joypad_event = (joypadmotion_event.is_valid() || joypadbutton_event.is_valid());
+
 	if (!mm.is_valid() && !mb.is_valid()) {
 		if (p_event->is_action_pressed("ui_left", true)) {
 			if (orientation != HORIZONTAL) {
 				return;
 			}
+			if (is_joypad_event) {
+				if (!input->is_action_just_pressed("ui_left", true)) {
+					return;
+				}
+				set_process_internal(true);
+			}
 			set_value(get_value() - (custom_step >= 0 ? custom_step : get_step()));
 			accept_event();
 		} else if (p_event->is_action_pressed("ui_right", true)) {
 			if (orientation != HORIZONTAL) {
 				return;
 			}
+			if (is_joypad_event) {
+				if (!input->is_action_just_pressed("ui_right", true)) {
+					return;
+				}
+				set_process_internal(true);
+			}
 			set_value(get_value() + (custom_step >= 0 ? custom_step : get_step()));
 			accept_event();
 		} else if (p_event->is_action_pressed("ui_up", true)) {
 			if (orientation != VERTICAL) {
 				return;
 			}
-
+			if (is_joypad_event) {
+				if (!input->is_action_just_pressed("ui_up", true)) {
+					return;
+				}
+				set_process_internal(true);
+			}
 			set_value(get_value() + (custom_step >= 0 ? custom_step : get_step()));
 			accept_event();
 		} else if (p_event->is_action_pressed("ui_down", true)) {
 			if (orientation != VERTICAL) {
 				return;
 			}
+			if (is_joypad_event) {
+				if (!input->is_action_just_pressed("ui_down", true)) {
+					return;
+				}
+				set_process_internal(true);
+			}
 			set_value(get_value() - (custom_step >= 0 ? custom_step : get_step()));
 			accept_event();
 		} else if (p_event->is_action("ui_home", true) && p_event->is_pressed()) {
@@ -163,6 +191,39 @@ void Slider::_update_theme_item_cache() {
 
 void Slider::_notification(int p_what) {
 	switch (p_what) {
+		case NOTIFICATION_INTERNAL_PROCESS: {
+			Input *input = Input::get_singleton();
+
+			if (input->is_action_just_released("ui_left") || input->is_action_just_released("ui_right") || input->is_action_just_released("ui_up") || input->is_action_just_released("ui_down")) {
+				gamepad_event_delay_ms = DEFAULT_GAMEPAD_EVENT_DELAY_MS;
+				set_process_internal(false);
+				return;
+			}
+
+			gamepad_event_delay_ms -= get_process_delta_time();
+			if (gamepad_event_delay_ms <= 0) {
+				gamepad_event_delay_ms = GAMEPAD_EVENT_REPEAT_RATE_MS + gamepad_event_delay_ms;
+				if (orientation == HORIZONTAL) {
+					if (input->is_action_pressed("ui_left")) {
+						set_value(get_value() - (custom_step >= 0 ? custom_step : get_step()));
+					}
+
+					if (input->is_action_pressed("ui_right")) {
+						set_value(get_value() + (custom_step >= 0 ? custom_step : get_step()));
+					}
+				} else if (orientation == VERTICAL) {
+					if (input->is_action_pressed("ui_down")) {
+						set_value(get_value() - (custom_step >= 0 ? custom_step : get_step()));
+					}
+
+					if (input->is_action_pressed("ui_up")) {
+						set_value(get_value() + (custom_step >= 0 ? custom_step : get_step()));
+					}
+				}
+			}
+
+		} break;
+
 		case NOTIFICATION_THEME_CHANGED: {
 			update_minimum_size();
 			queue_redraw();

scene/gui/slider.h

@@ -49,6 +49,10 @@ class Slider : public Range {
 	bool editable = true;
 	bool scrollable = true;
 
+	const float DEFAULT_GAMEPAD_EVENT_DELAY_MS = 0.5;
+	const float GAMEPAD_EVENT_REPEAT_RATE_MS = 1.0 / 20;
+	float gamepad_event_delay_ms = DEFAULT_GAMEPAD_EVENT_DELAY_MS;
+
 	struct ThemeCache {
 		Ref<StyleBox> slider_style;
 		Ref<StyleBox> grabber_area_style;