Add "Expand All" and "Collapse All" options to resource context menus when contained within array/dictionary

editor/editor_inspector.cpp

@@ -39,6 +39,7 @@
 #include "editor/editor_main_screen.h"
 #include "editor/editor_node.h"
 #include "editor/editor_properties.h"
+#include "editor/editor_properties_array_dict.h"
 #include "editor/editor_property_name_processor.h"
 #include "editor/editor_settings.h"
 #include "editor/editor_string_names.h"

editor/editor_properties.cpp

@@ -3386,6 +3386,16 @@ void EditorPropertyResource::setup(Object *p_object, const String &p_path, const
 		resource_picker = memnew(EditorResourcePicker);
 	}
 
+	if (EditorPropertyArray *parent_array = Object::cast_to<EditorPropertyArray>(p_object)) {
+		parent_editor_property_container = parent_array;
+	} else if (EditorPropertyDictionary *parent_dic = Object::cast_to<EditorPropertyDictionary>(p_object)) {
+		parent_editor_property_container = parent_dic;
+	}
+
+	if (parent_editor_property_container && !parent_editor_property_container->is_connected("child_section_unfold", callable_mp(this, &EditorPropertyResource::_set_unfold))) {
+		parent_editor_property_container->connect("child_section_unfold", callable_mp(this, &EditorPropertyResource::_set_unfold));
+	}
+
 	resource_picker->set_base_type(p_base_type);
 	resource_picker->set_resource_owner(p_object);
 	resource_picker->set_editable(true);
@@ -3544,6 +3554,11 @@ void EditorPropertyResource::_notification(int p_what) {
 	}
 }
 
+void EditorPropertyResource::_set_unfold(bool p_unfold) {
+	get_edited_object()->editor_set_section_unfold(get_edited_property(), p_unfold);
+	update_property();
+}
+
 void EditorPropertyResource::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("_should_stop_editing"), &EditorPropertyResource::_should_stop_editing);
 }

editor/editor_properties.h

@@ -692,6 +692,7 @@ class EditorPropertyResource : public EditorProperty {
 
 	EditorResourcePicker *resource_picker = nullptr;
 	SceneTreeDialog *scene_tree = nullptr;
+	EditorProperty *parent_editor_property_container = nullptr;
 
 	bool use_sub_inspector = false;
 	EditorInspector *sub_inspector = nullptr;
@@ -714,6 +715,7 @@ class EditorPropertyResource : public EditorProperty {
 protected:
 	virtual void _set_read_only(bool p_read_only) override;
 	void _notification(int p_what);
+	virtual void _set_unfold(bool p_unfold);
 	static void _bind_methods();
 
 public:

editor/editor_properties_array_dict.cpp

@@ -737,6 +737,10 @@ void EditorPropertyArray::drop_data_fw(const Point2 &p_point, const Variant &p_d
 	}
 }
 
+void EditorPropertyArray::_bind_methods() {
+	ADD_SIGNAL(MethodInfo("child_section_unfold", PropertyInfo(Variant::BOOL, "unfold")));
+}
+
 Node *EditorPropertyArray::get_base_node() {
 	Node *base_node = Object::cast_to<Node>(InspectorDock::get_inspector_singleton()->get_edited_object());
 
@@ -962,6 +966,10 @@ bool EditorPropertyArray::is_colored(ColorationMode p_mode) {
 	return p_mode == COLORATION_CONTAINER_RESOURCE;
 }
 
+void EditorPropertyArray::unfold_all_children(bool p_unfold) {
+	emit_signal(SNAME("child_section_unfold"), p_unfold);
+}
+
 EditorPropertyArray::EditorPropertyArray() {
 	object.instantiate();
 	page_length = int(EDITOR_GET("interface/inspector/max_array_dictionary_items_per_page"));
@@ -1486,6 +1494,10 @@ void EditorPropertyDictionary::_notification(int p_what) {
 	}
 }
 
+void EditorPropertyDictionary::_bind_methods() {
+	ADD_SIGNAL(MethodInfo("child_section_unfold", PropertyInfo(Variant::BOOL, "unfold")));
+}
+
 void EditorPropertyDictionary::_edit_pressed() {
 	Variant prop_val = get_edited_property_value();
 	if (prop_val.get_type() == Variant::NIL && edit->is_pressed()) {
@@ -1516,6 +1528,10 @@ bool EditorPropertyDictionary::is_colored(ColorationMode p_mode) {
 	return p_mode == COLORATION_CONTAINER_RESOURCE;
 }
 
+void EditorPropertyDictionary::unfold_all_children(bool p_unfold) {
+	emit_signal(SNAME("child_section_unfold"), p_unfold);
+}
+
 EditorPropertyDictionary::EditorPropertyDictionary() {
 	object.instantiate();
 	page_length = int(EDITOR_GET("interface/inspector/max_array_dictionary_items_per_page"));

editor/editor_properties_array_dict.h

@@ -164,11 +164,14 @@ class EditorPropertyArray : public EditorProperty {
 	virtual bool can_drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) const;
 	virtual void drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from);
 
+	static void _bind_methods();
+
 public:
 	void setup(Variant::Type p_array_type, const String &p_hint_string = "");
 	void set_preview_value(bool p_preview_value);
 	virtual void update_property() override;
 	virtual bool is_colored(ColorationMode p_mode) override;
+	virtual void unfold_all_children(bool p_unfold);
 	EditorPropertyArray();
 };
 
@@ -260,11 +263,14 @@ class EditorPropertyDictionary : public EditorProperty {
 protected:
 	void _notification(int p_what);
 
+	static void _bind_methods();
+
 public:
 	void setup(PropertyHint p_hint, const String &p_hint_string = "");
 	void set_preview_value(bool p_preview_value);
 	virtual void update_property() override;
 	virtual bool is_colored(ColorationMode p_mode) override;
+	virtual void unfold_all_children(bool p_unfold);
 	EditorPropertyDictionary();
 };
 

editor/editor_resource_picker.cpp

@@ -33,6 +33,7 @@
 #include "editor/audio_stream_preview.h"
 #include "editor/editor_help.h"
 #include "editor/editor_node.h"
+#include "editor/editor_properties_array_dict.h"
 #include "editor/editor_resource_preview.h"
 #include "editor/editor_settings.h"
 #include "editor/editor_string_names.h"
@@ -312,6 +313,12 @@ void EditorResourcePicker::_update_menu_items() {
 			relative_id++;
 		}
 	}
+
+	if (Object::cast_to<EditorPropertyArray>(resource_owner) || Object::cast_to<EditorPropertyDictionary>(resource_owner)) {
+		edit_menu->add_separator();
+		edit_menu->add_item(TTR("Expand All"), OBJ_MENU_EXPAND_ALL);
+		edit_menu->add_item(TTR("Collapse All"), OBJ_MENU_COLLAPSE_ALL);
+	}
 }
 
 void EditorResourcePicker::_edit_menu_cbk(int p_which) {
@@ -453,6 +460,22 @@ void EditorResourcePicker::_edit_menu_cbk(int p_which) {
 			FileSystemDock::get_singleton()->navigate_to_path(edited_resource->get_path());
 		} break;
 
+		case OBJ_MENU_EXPAND_ALL: {
+			if (EditorPropertyArray *owner_array = Object::cast_to<EditorPropertyArray>(resource_owner)) {
+				owner_array->unfold_all_children(true);
+			} else if (EditorPropertyDictionary *owner_dic = Object::cast_to<EditorPropertyDictionary>(resource_owner)) {
+				owner_dic->unfold_all_children(true);
+			}
+		} break;
+
+		case OBJ_MENU_COLLAPSE_ALL: {
+			if (EditorPropertyArray *owner_array = Object::cast_to<EditorPropertyArray>(resource_owner)) {
+				owner_array->unfold_all_children(false);
+			} else if (EditorPropertyDictionary *owner_dic = Object::cast_to<EditorPropertyDictionary>(resource_owner)) {
+				owner_dic->unfold_all_children(false);
+			}
+		} break;
+
 		default: {
 			// Allow subclasses to handle their own options first, only then fallback on the default branch logic.
 			if (handle_menu_selected(p_which)) {

editor/editor_resource_picker.h

@@ -75,6 +75,8 @@ class EditorResourcePicker : public HBoxContainer {
 		OBJ_MENU_COPY,
 		OBJ_MENU_PASTE,
 		OBJ_MENU_SHOW_IN_FILE_SYSTEM,
+		OBJ_MENU_EXPAND_ALL,
+		OBJ_MENU_COLLAPSE_ALL,
 
 		TYPE_BASE_ID = 100,
 		CONVERT_BASE_ID = 1000,