Expose set_edited and is_edited on EditorInterface

doc/classes/EditorInterface.xml

@@ -266,6 +266,13 @@
 				Returns [code]true[/code] if the 3D editor currently has snapping mode enabled, and [code]false[/code] otherwise.
 			</description>
 		</method>
+		<method name="is_object_edited" qualifiers="const">
+			<return type="bool" />
+			<param index="0" name="object" type="Object" />
+			<description>
+				Returns [code]true[/code] if the object has been marked as edited through [method set_object_edited].
+			</description>
+		</method>
 		<method name="is_playing_scene" qualifiers="const">
 			<return type="bool" />
 			<description>
@@ -490,6 +497,16 @@
 				Sets the editor's current main screen to the one specified in [param name]. [param name] must match the title of the tab in question exactly (e.g. [code]2D[/code], [code]3D[/code], [code skip-lint]Script[/code], [code]Game[/code], or [code]AssetLib[/code] for default tabs).
 			</description>
 		</method>
+		<method name="set_object_edited">
+			<return type="void" />
+			<param index="0" name="object" type="Object" />
+			<param index="1" name="edited" type="bool" />
+			<description>
+				If [param edited] is [code]true[/code], the object is marked as edited.
+				[b]Note:[/b] This is primarily used by the editor for [Resource] based objects to track their modified state. For example, any changes to an open scene, a resource in the inspector, or an edited script will cause this method to be called with [code]true[/code]. Saving the scene, script, or resource resets the edited state by calling this method with [code]false[/code].
+				[b]Note:[/b] Each call to this method increments the object's edited version. This is used to track changes in the editor and to trigger when thumbnails should be regenerated for resources.
+			</description>
+		</method>
 		<method name="set_plugin_enabled">
 			<return type="void" />
 			<param index="0" name="plugin" type="String" />

editor/editor_interface.cpp

@@ -705,6 +705,16 @@ void EditorInterface::reload_scene_from_path(const String &scene_path) {
 	EditorNode::get_singleton()->reload_scene(scene_path);
 }
 
+void EditorInterface::set_object_edited(Object *p_object, bool p_edited) {
+	ERR_FAIL_NULL_MSG(p_object, "Cannot change edited status on a null object.");
+	p_object->set_edited(p_edited);
+}
+
+bool EditorInterface::is_object_edited(Object *p_object) const {
+	ERR_FAIL_NULL_V_MSG(p_object, false, "Cannot check edit status on a null object.");
+	return p_object->is_edited();
+}
+
 Node *EditorInterface::get_edited_scene_root() const {
 	return EditorNode::get_singleton()->get_edited_scene();
 }
@@ -895,6 +905,9 @@ void EditorInterface::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("open_scene_from_path", "scene_filepath", "set_inherited"), &EditorInterface::open_scene_from_path, DEFVAL(false));
 	ClassDB::bind_method(D_METHOD("reload_scene_from_path", "scene_filepath"), &EditorInterface::reload_scene_from_path);
 
+	ClassDB::bind_method(D_METHOD("set_object_edited", "object", "edited"), &EditorInterface::set_object_edited);
+	ClassDB::bind_method(D_METHOD("is_object_edited", "object"), &EditorInterface::is_object_edited);
+
 	ClassDB::bind_method(D_METHOD("get_open_scenes"), &EditorInterface::get_open_scenes);
 	ClassDB::bind_method(D_METHOD("get_open_scene_roots"), &EditorInterface::get_open_scene_roots);
 	ClassDB::bind_method(D_METHOD("get_edited_scene_root"), &EditorInterface::get_edited_scene_root);

editor/editor_interface.h

@@ -175,6 +175,9 @@ public:
 	void open_scene_from_path(const String &scene_path, bool p_set_inherited = false);
 	void reload_scene_from_path(const String &scene_path);
 
+	void set_object_edited(Object *p_object, bool p_edited);
+	bool is_object_edited(Object *p_object) const;
+
 	PackedStringArray get_open_scenes() const;
 	TypedArray<Node> get_open_scene_roots() const;
 	Node *get_edited_scene_root() const;