Make opening menus with the same parent on mouse focus explicit

doc/classes/MenuButton.xml

@@ -27,6 +27,11 @@
 			</description>
 		</method>
 	</methods>
+	<members>
+		<member name="switch_on_hover" type="bool" setter="set_switch_on_hover" getter="is_switch_on_hover">
+			If [code]true[/code], when the cursor hovers above another MenuButton within the same parent which also has [code]switch_on_hover[/code] enabled, it will close the current MenuButton and open the other one.
+		</member>
+	</members>
 	<signals>
 		<signal name="about_to_show">
 			<description>

editor/editor_node.cpp

@@ -5135,6 +5135,7 @@ EditorNode::EditorNode() {
 
 	file_menu = memnew(MenuButton);
 	file_menu->set_flat(false);
+	file_menu->set_switch_on_hover(true);
 	file_menu->set_text(TTR("Scene"));
 	file_menu->add_style_override("hover", gui_base->get_stylebox("MenuHover", "EditorStyles"));
 	left_menu_hb->add_child(file_menu);
@@ -5226,6 +5227,7 @@ EditorNode::EditorNode() {
 
 	project_menu = memnew(MenuButton);
 	project_menu->set_flat(false);
+	project_menu->set_switch_on_hover(true);
 	project_menu->set_tooltip(TTR("Miscellaneous project or scene-wide tools."));
 	project_menu->set_text(TTR("Project"));
 	project_menu->add_style_override("hover", gui_base->get_stylebox("MenuHover", "EditorStyles"));
@@ -5267,6 +5269,7 @@ EditorNode::EditorNode() {
 
 	debug_menu = memnew(MenuButton);
 	debug_menu->set_flat(false);
+	debug_menu->set_switch_on_hover(true);
 	debug_menu->set_text(TTR("Debug"));
 	debug_menu->add_style_override("hover", gui_base->get_stylebox("MenuHover", "EditorStyles"));
 	left_menu_hb->add_child(debug_menu);
@@ -5297,6 +5300,7 @@ EditorNode::EditorNode() {
 
 	settings_menu = memnew(MenuButton);
 	settings_menu->set_flat(false);
+	settings_menu->set_switch_on_hover(true);
 	settings_menu->set_text(TTR("Editor"));
 	settings_menu->add_style_override("hover", gui_base->get_stylebox("MenuHover", "EditorStyles"));
 	left_menu_hb->add_child(settings_menu);
@@ -5333,6 +5337,7 @@ EditorNode::EditorNode() {
 	// Help Menu
 	help_menu = memnew(MenuButton);
 	help_menu->set_flat(false);
+	help_menu->set_switch_on_hover(true);
 	help_menu->set_text(TTR("Help"));
 	help_menu->add_style_override("hover", gui_base->get_stylebox("MenuHover", "EditorStyles"));
 	left_menu_hb->add_child(help_menu);

editor/plugins/script_editor_plugin.cpp

@@ -2982,6 +2982,7 @@ ScriptEditor::ScriptEditor(EditorNode *p_editor) {
 	file_menu = memnew(MenuButton);
 	menu_hb->add_child(file_menu);
 	file_menu->set_text(TTR("File"));
+	file_menu->set_switch_on_hover(true);
 	file_menu->get_popup()->set_hide_on_window_lose_focus(true);
 	file_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/new", TTR("New Script")), FILE_NEW);
 	file_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/new_textfile", TTR("New TextFile")), FILE_NEW_TEXTFILE);
@@ -3033,6 +3034,7 @@ ScriptEditor::ScriptEditor(EditorNode *p_editor) {
 	script_search_menu = memnew(MenuButton);
 	menu_hb->add_child(script_search_menu);
 	script_search_menu->set_text(TTR("Search"));
+	script_search_menu->set_switch_on_hover(true);
 	script_search_menu->get_popup()->set_hide_on_window_lose_focus(true);
 	script_search_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/find", TTR("Find..."), KEY_MASK_CMD | KEY_F), HELP_SEARCH_FIND);
 	script_search_menu->get_popup()->add_shortcut(ED_SHORTCUT("script_editor/find_next", TTR("Find Next"), KEY_F3), HELP_SEARCH_FIND_NEXT);
@@ -3042,6 +3044,7 @@ ScriptEditor::ScriptEditor(EditorNode *p_editor) {
 	debug_menu = memnew(MenuButton);
 	menu_hb->add_child(debug_menu);
 	debug_menu->set_text(TTR("Debug"));
+	debug_menu->set_switch_on_hover(true);
 	debug_menu->get_popup()->set_hide_on_window_lose_focus(true);
 	debug_menu->get_popup()->add_shortcut(ED_SHORTCUT("debugger/step_over", TTR("Step Over"), KEY_F10), DEBUG_NEXT);
 	debug_menu->get_popup()->add_shortcut(ED_SHORTCUT("debugger/step_into", TTR("Step Into"), KEY_F11), DEBUG_STEP);

editor/plugins/script_text_editor.cpp

@@ -1465,6 +1465,7 @@ ScriptTextEditor::ScriptTextEditor() {
 
 	edit_menu = memnew(MenuButton);
 	edit_menu->set_text(TTR("Edit"));
+	edit_menu->set_switch_on_hover(true);
 	edit_menu->get_popup()->set_hide_on_window_lose_focus(true);
 	edit_menu->get_popup()->add_shortcut(ED_GET_SHORTCUT("script_text_editor/undo"), EDIT_UNDO);
 	edit_menu->get_popup()->add_shortcut(ED_GET_SHORTCUT("script_text_editor/redo"), EDIT_REDO);
@@ -1519,6 +1520,7 @@ ScriptTextEditor::ScriptTextEditor() {
 	search_menu = memnew(MenuButton);
 	edit_hb->add_child(search_menu);
 	search_menu->set_text(TTR("Search"));
+	search_menu->set_switch_on_hover(true);
 	search_menu->get_popup()->set_hide_on_window_lose_focus(true);
 	search_menu->get_popup()->add_shortcut(ED_GET_SHORTCUT("script_text_editor/find"), SEARCH_FIND);
 	search_menu->get_popup()->add_shortcut(ED_GET_SHORTCUT("script_text_editor/find_next"), SEARCH_FIND_NEXT);

editor/plugins/shader_editor_plugin.cpp

@@ -526,9 +526,8 @@ ShaderEditor::ShaderEditor(EditorNode *p_node) {
 	HBoxContainer *hbc = memnew(HBoxContainer);
 
 	edit_menu = memnew(MenuButton);
-	//edit_menu->set_position(Point2(5, -1));
 	edit_menu->set_text(TTR("Edit"));
-
+	edit_menu->set_switch_on_hover(true);
 	edit_menu->get_popup()->set_hide_on_window_lose_focus(true);
 	edit_menu->get_popup()->add_shortcut(ED_GET_SHORTCUT("script_text_editor/undo"), EDIT_UNDO);
 	edit_menu->get_popup()->add_shortcut(ED_GET_SHORTCUT("script_text_editor/redo"), EDIT_REDO);
@@ -548,12 +547,11 @@ ShaderEditor::ShaderEditor(EditorNode *p_node) {
 	edit_menu->get_popup()->add_shortcut(ED_GET_SHORTCUT("script_text_editor/clone_down"), EDIT_CLONE_DOWN);
 	edit_menu->get_popup()->add_separator();
 	edit_menu->get_popup()->add_shortcut(ED_GET_SHORTCUT("script_text_editor/complete_symbol"), EDIT_COMPLETE);
-
 	edit_menu->get_popup()->connect("id_pressed", this, "_menu_option");
 
 	search_menu = memnew(MenuButton);
-	//search_menu->set_position(Point2(38, -1));
 	search_menu->set_text(TTR("Search"));
+	search_menu->set_switch_on_hover(true);
 	search_menu->get_popup()->set_hide_on_window_lose_focus(true);
 	search_menu->get_popup()->add_shortcut(ED_GET_SHORTCUT("script_text_editor/find"), SEARCH_FIND);
 	search_menu->get_popup()->add_shortcut(ED_GET_SHORTCUT("script_text_editor/find_next"), SEARCH_FIND_NEXT);

editor/plugins/spatial_editor_plugin.cpp

@@ -5475,6 +5475,7 @@ SpatialEditor::SpatialEditor(EditorNode *p_editor) {
 
 	transform_menu = memnew(MenuButton);
 	transform_menu->set_text(TTR("Transform"));
+	transform_menu->set_switch_on_hover(true);
 	hbc_menu->add_child(transform_menu);
 
 	p = transform_menu->get_popup();
@@ -5487,6 +5488,7 @@ SpatialEditor::SpatialEditor(EditorNode *p_editor) {
 
 	view_menu = memnew(MenuButton);
 	view_menu->set_text(TTR("View"));
+	view_menu->set_switch_on_hover(true);
 	hbc_menu->add_child(view_menu);
 
 	p = view_menu->get_popup();

modules/visual_script/visual_script_editor.cpp

@@ -3491,6 +3491,7 @@ VisualScriptEditor::VisualScriptEditor() {
 
 	edit_menu = memnew(MenuButton);
 	edit_menu->set_text(TTR("Edit"));
+	edit_menu->set_switch_on_hover(true);
 	edit_menu->get_popup()->add_shortcut(ED_GET_SHORTCUT("visual_script_editor/delete_selected"), EDIT_DELETE_NODES);
 	edit_menu->get_popup()->add_shortcut(ED_GET_SHORTCUT("visual_script_editor/toggle_breakpoint"), EDIT_TOGGLE_BREAKPOINT);
 	edit_menu->get_popup()->add_shortcut(ED_GET_SHORTCUT("visual_script_editor/find_node_type"), EDIT_FIND_NODE_TYPE);

scene/gui/menu_button.cpp

@@ -71,13 +71,24 @@ PopupMenu *MenuButton::get_popup() const {
 	return popup;
 }
 
+void MenuButton::_set_items(const Array &p_items) {
+
+	popup->set("items", p_items);
+}
+
 Array MenuButton::_get_items() const {
 
 	return popup->get("items");
 }
-void MenuButton::_set_items(const Array &p_items) {
 
-	popup->set("items", p_items);
+void MenuButton::set_switch_on_hover(bool p_enabled) {
+
+	switch_on_hover = p_enabled;
+}
+
+bool MenuButton::is_switch_on_hover() {
+
+	return switch_on_hover;
 }
 
 void MenuButton::_bind_methods() {
@@ -86,9 +97,12 @@ void MenuButton::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("_unhandled_key_input"), &MenuButton::_unhandled_key_input);
 	ClassDB::bind_method(D_METHOD("_set_items"), &MenuButton::_set_items);
 	ClassDB::bind_method(D_METHOD("_get_items"), &MenuButton::_get_items);
+	ClassDB::bind_method(D_METHOD("set_switch_on_hover", "enable"), &MenuButton::set_switch_on_hover);
+	ClassDB::bind_method(D_METHOD("is_switch_on_hover"), &MenuButton::is_switch_on_hover);
 	ClassDB::bind_method(D_METHOD("set_disable_shortcuts", "disabled"), &MenuButton::set_disable_shortcuts);
 
 	ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "items", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "_set_items", "_get_items");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "switch_on_hover"), "set_switch_on_hover", "is_switch_on_hover");
 
 	ADD_SIGNAL(MethodInfo("about_to_show"));
 }
@@ -100,6 +114,7 @@ void MenuButton::set_disable_shortcuts(bool p_disabled) {
 
 MenuButton::MenuButton() {
 
+	switch_on_hover = false;
 	set_flat(true);
 	set_disable_shortcuts(false);
 	set_enabled_focus_mode(FOCUS_NONE);

scene/gui/menu_button.h

@@ -41,6 +41,7 @@ class MenuButton : public Button {
 	GDCLASS(MenuButton, Button);
 
 	bool clicked;
+	bool switch_on_hover;
 	bool disable_shortcuts;
 	PopupMenu *popup;
 
@@ -57,6 +58,8 @@ public:
 	virtual void pressed();
 
 	PopupMenu *get_popup() const;
+	void set_switch_on_hover(bool p_enabled);
+	bool is_switch_on_hover();
 	void set_disable_shortcuts(bool p_disabled);
 
 	MenuButton();

scene/main/viewport.cpp

@@ -1961,10 +1961,9 @@ void Viewport::_gui_input_event(Ref<InputEvent> p_event) {
 
 				// If the mouse is over a menu button, this menu will open automatically
 				// if there is already a pop-up menu open at the same hierarchical level.
-				if (popup_menu_parent && menu_button &&
-						popup_menu_parent->get_icon().is_null() &&
-						menu_button->get_icon().is_null() &&
-						(popup_menu->get_parent()->get_parent()->is_a_parent_of(menu_button) ||
+				if (popup_menu_parent && menu_button && popup_menu_parent->is_switch_on_hover() &&
+						!menu_button->is_disabled() && menu_button->is_switch_on_hover() &&
+						(popup_menu_parent->get_parent()->is_a_parent_of(menu_button) ||
 								menu_button->get_parent()->is_a_parent_of(popup_menu))) {
 
 					popup_menu->notification(Control::NOTIFICATION_MODAL_CLOSE);