Implement `MenuBar` control to wrap `PopupMenu`s or native menu, use native menu for editor.

1 files changed, 865 insertions, 0 deletions

diff --git a/scene/gui/menu_bar.cpp b/scene/gui/menu_bar.cpp
new file mode 100644
index 0000000000..8f03ddeeab
--- /dev/null
+++ b/scene/gui/menu_bar.cpp
@@ -0,0 +1,865 @@
+/*************************************************************************/
+/*  menu_bar.cpp                                                         */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md).   */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#include "menu_bar.h"
+
+#include "core/os/keyboard.h"
+#include "scene/main/window.h"
+
+void MenuBar::gui_input(const Ref<InputEvent> &p_event) {
+	ERR_FAIL_COND(p_event.is_null());
+	if (is_native_menu()) {
+		// Handled by OS.
+		return;
+	}
+
+	MutexLock lock(mutex);
+	if (p_event->is_action("ui_left") && p_event->is_pressed()) {
+		int new_sel = selected_menu;
+		int old_sel = (selected_menu < 0) ? 0 : selected_menu;
+		do {
+			new_sel--;
+			if (new_sel < 0) {
+				new_sel = menu_cache.size() - 1;
+			}
+			if (old_sel == new_sel) {
+				return;
+			}
+		} while (menu_cache[new_sel].hidden || menu_cache[new_sel].disabled);
+
+		if (selected_menu != new_sel) {
+			selected_menu = new_sel;
+			focused_menu = selected_menu;
+			if (active_menu >= 0) {
+				get_menu_popup(active_menu)->hide();
+			}
+			_open_popup(selected_menu);
+		}
+		return;
+	} else if (p_event->is_action("ui_right") && p_event->is_pressed()) {
+		int new_sel = selected_menu;
+		int old_sel = (selected_menu < 0) ? menu_cache.size() - 1 : selected_menu;
+		do {
+			new_sel++;
+			if (new_sel >= menu_cache.size()) {
+				new_sel = 0;
+			}
+			if (old_sel == new_sel) {
+				return;
+			}
+		} while (menu_cache[new_sel].hidden || menu_cache[new_sel].disabled);
+
+		if (selected_menu != new_sel) {
+			selected_menu = new_sel;
+			focused_menu = selected_menu;
+			if (active_menu >= 0) {
+				get_menu_popup(active_menu)->hide();
+			}
+			_open_popup(selected_menu);
+		}
+		return;
+	}
+
+	Ref<InputEventMouseMotion> mm = p_event;
+	if (mm.is_valid()) {
+		int old_sel = selected_menu;
+		focused_menu = _get_index_at_point(mm->get_position());
+		if (focused_menu >= 0) {
+			selected_menu = focused_menu;
+		}
+		if (selected_menu != old_sel) {
+			update();
+		}
+	}
+
+	Ref<InputEventMouseButton> mb = p_event;
+	if (mb.is_valid()) {
+		if (mb->is_pressed() && (mb->get_button_index() == MouseButton::LEFT || mb->get_button_index() == MouseButton::RIGHT)) {
+			int index = _get_index_at_point(mb->get_position());
+			if (index >= 0) {
+				_open_popup(index);
+			}
+		}
+	}
+}
+
+void MenuBar::_open_popup(int p_index) {
+	ERR_FAIL_INDEX(p_index, menu_cache.size());
+
+	PopupMenu *pm = get_menu_popup(p_index);
+	if (pm->is_visible()) {
+		pm->hide();
+		return;
+	}
+
+	Rect2 item_rect = _get_menu_item_rect(p_index);
+	Point2 screen_pos = get_screen_position() + item_rect.position * get_viewport()->get_canvas_transform().get_scale();
+	Size2 screen_size = item_rect.size * get_viewport()->get_canvas_transform().get_scale();
+
+	active_menu = p_index;
+
+	pm->set_size(Size2(screen_size.x, 0));
+	screen_pos.y += screen_size.y;
+	if (is_layout_rtl()) {
+		screen_pos.x += screen_size.x - pm->get_size().width;
+	}
+	pm->set_position(screen_pos);
+	pm->set_parent_rect(Rect2(Point2(screen_pos - pm->get_position()), Size2(screen_size.x, screen_pos.y)));
+	pm->popup();
+
+	update();
+}
+
+void MenuBar::shortcut_input(const Ref<InputEvent> &p_event) {
+	ERR_FAIL_COND(p_event.is_null());
+
+	if (is_native_menu()) {
+		return;
+	}
+
+	if (!_is_focus_owner_in_shortcut_context()) {
+		return;
+	}
+
+	if (disable_shortcuts) {
+		return;
+	}
+
+	if (p_event->is_pressed() && !p_event->is_echo() && (Object::cast_to<InputEventKey>(p_event.ptr()) || Object::cast_to<InputEventJoypadButton>(p_event.ptr()) || Object::cast_to<InputEventAction>(*p_event) || Object::cast_to<InputEventShortcut>(*p_event))) {
+		if (!get_parent() || !is_visible_in_tree()) {
+			return;
+		}
+
+		Vector<PopupMenu *> popups = _get_popups();
+		for (int i = 0; i < popups.size(); i++) {
+			if (menu_cache[i].hidden || menu_cache[i].disabled) {
+				continue;
+			}
+			if (popups[i]->activate_item_by_event(p_event, false)) {
+				accept_event();
+				return;
+			}
+		}
+	}
+}
+
+void MenuBar::set_shortcut_context(Node *p_node) {
+	if (p_node != nullptr) {
+		shortcut_context = p_node->get_instance_id();
+	} else {
+		shortcut_context = ObjectID();
+	}
+}
+
+Node *MenuBar::get_shortcut_context() const {
+	Object *ctx_obj = ObjectDB::get_instance(shortcut_context);
+	Node *ctx_node = Object::cast_to<Node>(ctx_obj);
+
+	return ctx_node;
+}
+
+bool MenuBar::_is_focus_owner_in_shortcut_context() const {
+	if (shortcut_context == ObjectID()) {
+		// No context, therefore global - always "in" context.
+		return true;
+	}
+
+	Node *ctx_node = get_shortcut_context();
+	Control *vp_focus = get_viewport() ? get_viewport()->gui_get_focus_owner() : nullptr;
+
+	// If the context is valid and the viewport focus is valid, check if the context is the focus or is a parent of it.
+	return ctx_node && vp_focus && (ctx_node == vp_focus || ctx_node->is_ancestor_of(vp_focus));
+}
+
+void MenuBar::_popup_visibility_changed(bool p_visible) {
+	if (!p_visible) {
+		active_menu = -1;
+		focused_menu = -1;
+		set_process_internal(false);
+		update();
+		return;
+	}
+
+	if (switch_on_hover) {
+		Window *window = Object::cast_to<Window>(get_viewport());
+		if (window) {
+			mouse_pos_adjusted = window->get_position();
+
+			if (window->is_embedded()) {
+				Window *window_parent = Object::cast_to<Window>(window->get_parent()->get_viewport());
+				while (window_parent) {
+					if (!window_parent->is_embedded()) {
+						mouse_pos_adjusted += window_parent->get_position();
+						break;
+					}
+
+					window_parent = Object::cast_to<Window>(window_parent->get_parent()->get_viewport());
+				}
+			}
+
+			set_process_internal(true);
+		}
+	}
+}
+
+void MenuBar::_update_submenu(const String &p_menu_name, PopupMenu *p_child) {
+	int count = p_child->get_item_count();
+	global_menus.insert(p_menu_name);
+	for (int i = 0; i < count; i++) {
+		if (p_child->is_item_separator(i)) {
+			DisplayServer::get_singleton()->global_menu_add_separator(p_menu_name);
+		} else if (!p_child->get_item_submenu(i).is_empty()) {
+			Node *n = p_child->get_node(p_child->get_item_submenu(i));
+			ERR_FAIL_COND_MSG(!n, "Item subnode does not exist: " + p_child->get_item_submenu(i) + ".");
+			PopupMenu *pm = Object::cast_to<PopupMenu>(n);
+			ERR_FAIL_COND_MSG(!pm, "Item subnode is not a PopupMenu: " + p_child->get_item_submenu(i) + ".");
+
+			DisplayServer::get_singleton()->global_menu_add_submenu_item(p_menu_name, p_child->get_item_text(i), p_menu_name + "/" + itos(i));
+			_update_submenu(p_menu_name + "/" + itos(i), pm);
+		} else {
+			int index = DisplayServer::get_singleton()->global_menu_add_item(p_menu_name, p_child->get_item_text(i), callable_mp(p_child, &PopupMenu::activate_item), i);
+
+			if (p_child->is_item_checkable(i)) {
+				DisplayServer::get_singleton()->global_menu_set_item_checkable(p_menu_name, index, true);
+			}
+			if (p_child->is_item_radio_checkable(i)) {
+				DisplayServer::get_singleton()->global_menu_set_item_radio_checkable(p_menu_name, index, true);
+			}
+			DisplayServer::get_singleton()->global_menu_set_item_checked(p_menu_name, index, p_child->is_item_checked(i));
+			DisplayServer::get_singleton()->global_menu_set_item_disabled(p_menu_name, index, p_child->is_item_disabled(i));
+			DisplayServer::get_singleton()->global_menu_set_item_max_states(p_menu_name, index, p_child->get_item_max_states(i));
+			DisplayServer::get_singleton()->global_menu_set_item_icon(p_menu_name, index, p_child->get_item_icon(i));
+			DisplayServer::get_singleton()->global_menu_set_item_state(p_menu_name, index, p_child->get_item_state(i));
+			DisplayServer::get_singleton()->global_menu_set_item_indentation_level(p_menu_name, index, p_child->get_item_indent(i));
+			DisplayServer::get_singleton()->global_menu_set_item_tooltip(p_menu_name, index, p_child->get_item_tooltip(i));
+			if (!p_child->is_item_shortcut_disabled(i) && p_child->get_item_shortcut(i).is_valid() && p_child->get_item_shortcut(i)->has_valid_event()) {
+				Array events = p_child->get_item_shortcut(i)->get_events();
+				for (int j = 0; j < events.size(); j++) {
+					Ref<InputEventKey> ie = events[j];
+					if (ie.is_valid()) {
+						DisplayServer::get_singleton()->global_menu_set_item_accelerator(p_menu_name, index, ie->get_keycode_with_modifiers());
+						break;
+					}
+				}
+			} else if (p_child->get_item_accelerator(i) != Key::NONE) {
+				DisplayServer::get_singleton()->global_menu_set_item_accelerator(p_menu_name, i, p_child->get_item_accelerator(i));
+			}
+		}
+	}
+}
+
+bool MenuBar::is_native_menu() const {
+	if (!is_visible_in_tree()) {
+		return false;
+	}
+	if (Engine::get_singleton()->is_editor_hint() && get_tree()->get_edited_scene_root() && (get_tree()->get_edited_scene_root()->is_ancestor_of(this) || get_tree()->get_edited_scene_root() == this)) {
+		return false;
+	}
+
+	return (DisplayServer::get_singleton()->has_feature(DisplayServer::FEATURE_GLOBAL_MENU) && is_native);
+}
+
+void MenuBar::_clear_menu() {
+	if (!DisplayServer::get_singleton()->has_feature(DisplayServer::FEATURE_GLOBAL_MENU)) {
+		return;
+	}
+
+	// Remove root menu items.
+	int count = DisplayServer::get_singleton()->global_menu_get_item_count("_main");
+	for (int i = count - 1; i >= 0; i--) {
+		if (global_menus.has(DisplayServer::get_singleton()->global_menu_get_item_submenu("_main", i))) {
+			DisplayServer::get_singleton()->global_menu_remove_item("_main", i);
+		}
+	}
+	// Erase submenu contents.
+	for (const String &E : global_menus) {
+		DisplayServer::get_singleton()->global_menu_clear(E);
+	}
+	global_menus.clear();
+}
+
+void MenuBar::_update_menu() {
+	_clear_menu();
+
+	if (!is_inside_tree()) {
+		return;
+	}
+
+	int index = start_index;
+	if (is_native_menu()) {
+		Vector<PopupMenu *> popups = _get_popups();
+		String root_name = "MenuBar<" + String::num_int64((uint64_t)this, 16) + ">";
+		for (int i = 0; i < popups.size(); i++) {
+			if (menu_cache[i].hidden) {
+				continue;
+			}
+			String menu_name = String(popups[i]->get_meta("_menu_name", popups[i]->get_name()));
+
+			index = DisplayServer::get_singleton()->global_menu_add_submenu_item("_main", menu_name, root_name + "/" + itos(i), index);
+			if (menu_cache[i].disabled) {
+				DisplayServer::get_singleton()->global_menu_set_item_disabled("_main", index, true);
+			}
+			_update_submenu(root_name + "/" + itos(i), popups[i]);
+			index++;
+		}
+	}
+	update_minimum_size();
+	update();
+}
+
+void MenuBar::_notification(int p_what) {
+	switch (p_what) {
+		case NOTIFICATION_ENTER_TREE: {
+			if (get_menu_count() > 0) {
+				_refresh_menu_names();
+			}
+		} break;
+		case NOTIFICATION_EXIT_TREE: {
+			_clear_menu();
+		} break;
+		case NOTIFICATION_MOUSE_EXIT: {
+			focused_menu = -1;
+			update();
+		} break;
+		case NOTIFICATION_TRANSLATION_CHANGED:
+		case NOTIFICATION_LAYOUT_DIRECTION_CHANGED:
+		case NOTIFICATION_THEME_CHANGED: {
+			for (int i = 0; i < menu_cache.size(); i++) {
+				shape(menu_cache.write[i]);
+			}
+			_update_menu();
+		} break;
+		case NOTIFICATION_VISIBILITY_CHANGED: {
+			_update_menu();
+		} break;
+		case NOTIFICATION_DRAW: {
+			if (is_native_menu()) {
+				return;
+			}
+			for (int i = 0; i < menu_cache.size(); i++) {
+				_draw_menu_item(i);
+			}
+		} break;
+		case NOTIFICATION_INTERNAL_PROCESS: {
+			MutexLock lock(mutex);
+
+			Vector2 pos = DisplayServer::get_singleton()->mouse_get_position() - mouse_pos_adjusted - get_global_position();
+			int index = _get_index_at_point(pos);
+			if (index >= 0 && index != active_menu) {
+				selected_menu = index;
+				focused_menu = selected_menu;
+				get_menu_popup(active_menu)->hide();
+				_open_popup(index);
+			}
+		} break;
+	}
+}
+
+int MenuBar::_get_index_at_point(const Point2 &p_point) const {
+	Ref<StyleBox> style = get_theme_stylebox(SNAME("normal"));
+	int hsep = get_theme_constant(SNAME("h_separation"));
+	int offset = 0;
+	for (int i = 0; i < menu_cache.size(); i++) {
+		if (menu_cache[i].hidden) {
+			continue;
+		}
+		Size2 size = menu_cache[i].text_buf->get_size() + style->get_minimum_size();
+		if (p_point.x > offset && p_point.x < offset + size.x) {
+			if (p_point.y > 0 && p_point.y < size.y) {
+				return i;
+			}
+		}
+		offset += size.x + hsep;
+	}
+	return -1;
+}
+
+Rect2 MenuBar::_get_menu_item_rect(int p_index) const {
+	ERR_FAIL_INDEX_V(p_index, menu_cache.size(), Rect2());
+
+	Ref<StyleBox> style = get_theme_stylebox(SNAME("normal"));
+	int hsep = get_theme_constant(SNAME("h_separation"));
+
+	int offset = 0;
+	for (int i = 0; i < p_index; i++) {
+		if (menu_cache[i].hidden) {
+			continue;
+		}
+		Size2 size = menu_cache[i].text_buf->get_size() + style->get_minimum_size();
+		offset += size.x + hsep;
+	}
+
+	return Rect2(Point2(offset, 0), menu_cache[p_index].text_buf->get_size() + style->get_minimum_size());
+}
+
+void MenuBar::_draw_menu_item(int p_index) {
+	ERR_FAIL_INDEX(p_index, menu_cache.size());
+
+	RID ci = get_canvas_item();
+	bool hovered = (focused_menu == p_index);
+	bool pressed = (active_menu == p_index);
+	bool rtl = is_layout_rtl();
+
+	if (menu_cache[p_index].hidden) {
+		return;
+	}
+
+	Color color;
+	Ref<StyleBox> style = get_theme_stylebox(SNAME("normal"));
+	Rect2 item_rect = _get_menu_item_rect(p_index);
+
+	if (menu_cache[p_index].disabled) {
+		if (rtl && has_theme_stylebox(SNAME("disabled_mirrored"))) {
+			style = get_theme_stylebox(SNAME("disabled_mirrored"));
+		} else {
+			style = get_theme_stylebox(SNAME("disabled"));
+		}
+		if (!flat) {
+			style->draw(ci, item_rect);
+		}
+		color = get_theme_color(SNAME("font_disabled_color"));
+	} else if (hovered && pressed && has_theme_stylebox("hover_pressed")) {
+		if (rtl && has_theme_stylebox(SNAME("hover_pressed_mirrored"))) {
+			style = get_theme_stylebox(SNAME("hover_pressed_mirrored"));
+		} else {
+			style = get_theme_stylebox(SNAME("hover_pressed"));
+		}
+		if (!flat) {
+			style->draw(ci, item_rect);
+		}
+		if (has_theme_color(SNAME("font_hover_pressed_color"))) {
+			color = get_theme_color(SNAME("font_hover_pressed_color"));
+		}
+	} else if (pressed) {
+		if (rtl && has_theme_stylebox(SNAME("pressed_mirrored"))) {
+			style = get_theme_stylebox(SNAME("pressed_mirrored"));
+		} else {
+			style = get_theme_stylebox(SNAME("pressed"));
+		}
+		if (!flat) {
+			style->draw(ci, item_rect);
+		}
+		if (has_theme_color(SNAME("font_pressed_color"))) {
+			color = get_theme_color(SNAME("font_pressed_color"));
+		} else {
+			color = get_theme_color(SNAME("font_color"));
+		}
+	} else if (hovered) {
+		if (rtl && has_theme_stylebox(SNAME("hover_mirrored"))) {
+			style = get_theme_stylebox(SNAME("hover_mirrored"));
+		} else {
+			style = get_theme_stylebox(SNAME("hover"));
+		}
+		if (!flat) {
+			style->draw(ci, item_rect);
+		}
+		color = get_theme_color(SNAME("font_hover_color"));
+	} else {
+		if (rtl && has_theme_stylebox(SNAME("normal_mirrored"))) {
+			style = get_theme_stylebox(SNAME("normal_mirrored"));
+		} else {
+			style = get_theme_stylebox(SNAME("normal"));
+		}
+		if (!flat) {
+			style->draw(ci, item_rect);
+		}
+		// Focus colors only take precedence over normal state.
+		if (has_focus()) {
+			color = get_theme_color(SNAME("font_focus_color"));
+		} else {
+			color = get_theme_color(SNAME("font_color"));
+		}
+	}
+
+	Point2 text_ofs = item_rect.position + Point2(style->get_margin(SIDE_LEFT), style->get_margin(SIDE_TOP));
+
+	Color font_outline_color = get_theme_color(SNAME("font_outline_color"));
+	int outline_size = get_theme_constant(SNAME("outline_size"));
+	if (outline_size > 0 && font_outline_color.a > 0) {
+		menu_cache[p_index].text_buf->draw_outline(ci, text_ofs, outline_size, font_outline_color);
+	}
+	menu_cache[p_index].text_buf->draw(ci, text_ofs, color);
+}
+
+void MenuBar::shape(Menu &p_menu) {
+	Ref<Font> font = get_theme_font(SNAME("font"));
+	int font_size = get_theme_font_size(SNAME("font_size"));
+
+	p_menu.text_buf->clear();
+	if (text_direction == Control::TEXT_DIRECTION_INHERITED) {
+		p_menu.text_buf->set_direction(is_layout_rtl() ? TextServer::DIRECTION_RTL : TextServer::DIRECTION_LTR);
+	} else {
+		p_menu.text_buf->set_direction((TextServer::Direction)text_direction);
+	}
+	p_menu.text_buf->add_string(p_menu.name, font, font_size, language);
+}
+
+void MenuBar::_refresh_menu_names() {
+	Vector<PopupMenu *> popups = _get_popups();
+	for (int i = 0; i < popups.size(); i++) {
+		if (!popups[i]->has_meta("_menu_name") && String(popups[i]->get_name()) != get_menu_title(i)) {
+			menu_cache.write[i].name = popups[i]->get_name();
+			shape(menu_cache.write[i]);
+		}
+	}
+	_update_menu();
+}
+
+Vector<PopupMenu *> MenuBar::_get_popups() const {
+	Vector<PopupMenu *> popups;
+	for (int i = 0; i < get_child_count(); i++) {
+		PopupMenu *pm = Object::cast_to<PopupMenu>(get_child(i));
+		if (!pm) {
+			continue;
+		}
+		popups.push_back(pm);
+	}
+	return popups;
+}
+
+int MenuBar::get_menu_idx_from_control(PopupMenu *p_child) const {
+	ERR_FAIL_NULL_V(p_child, -1);
+	ERR_FAIL_COND_V(p_child->get_parent() != this, -1);
+
+	Vector<PopupMenu *> popups = _get_popups();
+	for (int i = 0; i < popups.size(); i++) {
+		if (popups[i] == p_child) {
+			return i;
+		}
+	}
+
+	return -1;
+}
+
+void MenuBar::add_child_notify(Node *p_child) {
+	Control::add_child_notify(p_child);
+
+	PopupMenu *pm = Object::cast_to<PopupMenu>(p_child);
+	if (!pm) {
+		return;
+	}
+	Menu menu = Menu(p_child->get_name());
+	shape(menu);
+
+	menu_cache.push_back(menu);
+	p_child->connect("renamed", callable_mp(this, &MenuBar::_refresh_menu_names));
+	p_child->connect("menu_changed", callable_mp(this, &MenuBar::_update_menu));
+	p_child->connect("about_to_popup", callable_mp(this, &MenuBar::_popup_visibility_changed).bind(true));
+	p_child->connect("popup_hide", callable_mp(this, &MenuBar::_popup_visibility_changed).bind(false));
+
+	_update_menu();
+}
+
+void MenuBar::move_child_notify(Node *p_child) {
+	Control::move_child_notify(p_child);
+
+	PopupMenu *pm = Object::cast_to<PopupMenu>(p_child);
+	if (!pm) {
+		return;
+	}
+
+	int old_idx = -1;
+	String menu_name = String(pm->get_meta("_menu_name", pm->get_name()));
+	// Find the previous menu index of the control.
+	for (int i = 0; i < get_menu_count(); i++) {
+		if (get_menu_title(i) == menu_name) {
+			old_idx = i;
+			break;
+		}
+	}
+	Menu menu = menu_cache[old_idx];
+	menu_cache.remove_at(old_idx);
+	menu_cache.insert(get_menu_idx_from_control(pm), menu);
+
+	_update_menu();
+}
+
+void MenuBar::remove_child_notify(Node *p_child) {
+	Control::remove_child_notify(p_child);
+
+	PopupMenu *pm = Object::cast_to<PopupMenu>(p_child);
+	if (!pm) {
+		return;
+	}
+
+	int idx = get_menu_idx_from_control(pm);
+
+	menu_cache.remove_at(idx);
+
+	p_child->remove_meta("_menu_name");
+	p_child->remove_meta("_menu_tooltip");
+
+	p_child->disconnect("renamed", callable_mp(this, &MenuBar::_refresh_menu_names));
+	p_child->disconnect("menu_changed", callable_mp(this, &MenuBar::_update_menu));
+	p_child->disconnect("about_to_popup", callable_mp(this, &MenuBar::_popup_visibility_changed));
+	p_child->disconnect("popup_hide", callable_mp(this, &MenuBar::_popup_visibility_changed));
+
+	_update_menu();
+}
+
+void MenuBar::_bind_methods() {
+	ClassDB::bind_method(D_METHOD("set_switch_on_hover", "enable"), &MenuBar::set_switch_on_hover);
+	ClassDB::bind_method(D_METHOD("is_switch_on_hover"), &MenuBar::is_switch_on_hover);
+	ClassDB::bind_method(D_METHOD("set_disable_shortcuts", "disabled"), &MenuBar::set_disable_shortcuts);
+
+	ClassDB::bind_method(D_METHOD("set_prefer_global_menu", "enabled"), &MenuBar::set_prefer_global_menu);
+	ClassDB::bind_method(D_METHOD("is_prefer_global_menu"), &MenuBar::is_prefer_global_menu);
+	ClassDB::bind_method(D_METHOD("is_native_menu"), &MenuBar::is_native_menu);
+
+	ClassDB::bind_method(D_METHOD("get_menu_count"), &MenuBar::get_menu_count);
+
+	ClassDB::bind_method(D_METHOD("set_text_direction", "direction"), &MenuBar::set_text_direction);
+	ClassDB::bind_method(D_METHOD("get_text_direction"), &MenuBar::get_text_direction);
+	ClassDB::bind_method(D_METHOD("set_language", "language"), &MenuBar::set_language);
+	ClassDB::bind_method(D_METHOD("get_language"), &MenuBar::get_language);
+	ClassDB::bind_method(D_METHOD("set_flat", "enabled"), &MenuBar::set_flat);
+	ClassDB::bind_method(D_METHOD("is_flat"), &MenuBar::is_flat);
+	ClassDB::bind_method(D_METHOD("set_start_index", "enabled"), &MenuBar::set_start_index);
+	ClassDB::bind_method(D_METHOD("get_start_index"), &MenuBar::get_start_index);
+
+	ClassDB::bind_method(D_METHOD("set_menu_title", "menu", "title"), &MenuBar::set_menu_title);
+	ClassDB::bind_method(D_METHOD("get_menu_title", "menu"), &MenuBar::get_menu_title);
+
+	ClassDB::bind_method(D_METHOD("set_menu_tooltip", "menu", "tooltip"), &MenuBar::set_menu_tooltip);
+	ClassDB::bind_method(D_METHOD("get_menu_tooltip", "menu"), &MenuBar::get_menu_tooltip);
+
+	ClassDB::bind_method(D_METHOD("set_menu_disabled", "menu", "disabled"), &MenuBar::set_menu_disabled);
+	ClassDB::bind_method(D_METHOD("is_menu_disabled", "menu"), &MenuBar::is_menu_disabled);
+
+	ClassDB::bind_method(D_METHOD("set_menu_hidden", "menu", "hidden"), &MenuBar::set_menu_hidden);
+	ClassDB::bind_method(D_METHOD("is_menu_hidden", "menu"), &MenuBar::is_menu_hidden);
+
+	ClassDB::bind_method(D_METHOD("set_shortcut_context", "node"), &MenuBar::set_shortcut_context);
+	ClassDB::bind_method(D_METHOD("get_shortcut_context"), &MenuBar::get_shortcut_context);
+
+	ClassDB::bind_method(D_METHOD("get_menu_popup", "menu"), &MenuBar::get_menu_popup);
+
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "flat"), "set_flat", "is_flat");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "start_index"), "set_start_index", "get_start_index");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "switch_on_hover"), "set_switch_on_hover", "is_switch_on_hover");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "prefer_global_menu"), "set_prefer_global_menu", "is_prefer_global_menu");
+	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "shortcut_context", PROPERTY_HINT_RESOURCE_TYPE, "Node"), "set_shortcut_context", "get_shortcut_context");
+
+	ADD_GROUP("BiDi", "");
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "text_direction", PROPERTY_HINT_ENUM, "Auto,Left-to-Right,Right-to-Left,Inherited"), "set_text_direction", "get_text_direction");
+	ADD_PROPERTY(PropertyInfo(Variant::STRING, "language", PROPERTY_HINT_LOCALE_ID, ""), "set_language", "get_language");
+}
+
+void MenuBar::set_switch_on_hover(bool p_enabled) {
+	switch_on_hover = p_enabled;
+}
+
+bool MenuBar::is_switch_on_hover() {
+	return switch_on_hover;
+}
+
+void MenuBar::set_disable_shortcuts(bool p_disabled) {
+	disable_shortcuts = p_disabled;
+}
+
+void MenuBar::set_text_direction(Control::TextDirection p_text_direction) {
+	ERR_FAIL_COND((int)p_text_direction < -1 || (int)p_text_direction > 3);
+	if (text_direction != p_text_direction) {
+		text_direction = p_text_direction;
+		_update_menu();
+	}
+}
+
+Control::TextDirection MenuBar::get_text_direction() const {
+	return text_direction;
+}
+
+void MenuBar::set_language(const String &p_language) {
+	if (language != p_language) {
+		language = p_language;
+		_update_menu();
+	}
+}
+
+String MenuBar::get_language() const {
+	return language;
+}
+
+void MenuBar::set_flat(bool p_enabled) {
+	if (flat != p_enabled) {
+		flat = p_enabled;
+		update();
+	}
+}
+
+bool MenuBar::is_flat() const {
+	return flat;
+}
+
+void MenuBar::set_start_index(int p_index) {
+	if (start_index != p_index) {
+		start_index = p_index;
+		_update_menu();
+	}
+}
+
+int MenuBar::get_start_index() const {
+	return start_index;
+}
+
+void MenuBar::set_prefer_global_menu(bool p_enabled) {
+	if (is_native != p_enabled) {
+		if (is_native) {
+			_clear_menu();
+		}
+		is_native = p_enabled;
+		_update_menu();
+	}
+}
+
+bool MenuBar::is_prefer_global_menu() const {
+	return is_native;
+}
+
+Size2 MenuBar::get_minimum_size() const {
+	if (is_native_menu()) {
+		return Size2();
+	}
+
+	Ref<StyleBox> style = get_theme_stylebox(SNAME("normal"));
+	int hsep = get_theme_constant(SNAME("h_separation"));
+
+	Vector2 size;
+	for (int i = 0; i < menu_cache.size(); i++) {
+		if (menu_cache[i].hidden) {
+			continue;
+		}
+		Size2 sz = menu_cache[i].text_buf->get_size() + style->get_minimum_size();
+		size.y = MAX(size.y, sz.y);
+		size.x += sz.x + hsep;
+	}
+	return size;
+}
+
+int MenuBar::get_menu_count() const {
+	return menu_cache.size();
+}
+
+void MenuBar::set_menu_title(int p_menu, const String &p_title) {
+	ERR_FAIL_INDEX(p_menu, menu_cache.size());
+	PopupMenu *pm = get_menu_popup(p_menu);
+	if (p_title == pm->get_name()) {
+		pm->remove_meta("_menu_name");
+	} else {
+		pm->set_meta("_menu_name", p_title);
+	}
+	menu_cache.write[p_menu].name = p_title;
+	shape(menu_cache.write[p_menu]);
+	_update_menu();
+}
+
+String MenuBar::get_menu_title(int p_menu) const {
+	ERR_FAIL_INDEX_V(p_menu, menu_cache.size(), String());
+	return menu_cache[p_menu].name;
+}
+
+void MenuBar::set_menu_tooltip(int p_menu, const String &p_tooltip) {
+	ERR_FAIL_INDEX(p_menu, menu_cache.size());
+	PopupMenu *pm = get_menu_popup(p_menu);
+	pm->set_meta("_menu_tooltip", p_tooltip);
+	menu_cache.write[p_menu].name = p_tooltip;
+}
+
+String MenuBar::get_menu_tooltip(int p_menu) const {
+	ERR_FAIL_INDEX_V(p_menu, menu_cache.size(), String());
+	return menu_cache[p_menu].tooltip;
+}
+
+void MenuBar::set_menu_disabled(int p_menu, bool p_disabled) {
+	ERR_FAIL_INDEX(p_menu, menu_cache.size());
+	menu_cache.write[p_menu].disabled = p_disabled;
+	_update_menu();
+}
+
+bool MenuBar::is_menu_disabled(int p_menu) const {
+	ERR_FAIL_INDEX_V(p_menu, menu_cache.size(), false);
+	return menu_cache[p_menu].disabled;
+}
+
+void MenuBar::set_menu_hidden(int p_menu, bool p_hidden) {
+	ERR_FAIL_INDEX(p_menu, menu_cache.size());
+	menu_cache.write[p_menu].hidden = p_hidden;
+	_update_menu();
+}
+
+bool MenuBar::is_menu_hidden(int p_menu) const {
+	ERR_FAIL_INDEX_V(p_menu, menu_cache.size(), false);
+	return menu_cache[p_menu].hidden;
+}
+
+PopupMenu *MenuBar::get_menu_popup(int p_idx) const {
+	Vector<PopupMenu *> controls = _get_popups();
+	if (p_idx >= 0 && p_idx < controls.size()) {
+		return controls[p_idx];
+	} else {
+		return nullptr;
+	}
+}
+
+String MenuBar::get_tooltip(const Point2 &p_pos) const {
+	int index = _get_index_at_point(p_pos);
+	if (index >= 0 && index < menu_cache.size()) {
+		return menu_cache[index].tooltip;
+	} else {
+		return String();
+	}
+}
+
+void MenuBar::get_translatable_strings(List<String> *p_strings) const {
+	Vector<PopupMenu *> popups = _get_popups();
+	for (int i = 0; i < popups.size(); i++) {
+		PopupMenu *pm = popups[i];
+
+		if (!pm->has_meta("_menu_name") && !pm->has_meta("_menu_tooltip")) {
+			continue;
+		}
+
+		String name = pm->get_meta("_menu_name");
+		if (!name.is_empty()) {
+			p_strings->push_back(name);
+		}
+
+		String tooltip = pm->get_meta("_menu_tooltip");
+		if (!tooltip.is_empty()) {
+			p_strings->push_back(tooltip);
+		}
+	}
+}
+
+MenuBar::MenuBar() {
+}
+
+MenuBar::~MenuBar() {
+}