Add move_to method to Editor

core/src/renderer/null.rs

@@ -190,6 +190,8 @@ impl text::Editor for () {
 
     fn perform(&mut self, _action: text::editor::Action) {}
 
+    fn move_to(&mut self, _cursor: text::editor::Cursor) {}
+
     fn bounds(&self) -> Size {
         Size::ZERO
     }

core/src/text/editor.rs

@@ -35,6 +35,9 @@ pub trait Editor: Sized + Default {
     /// Performs an [`Action`] on the [`Editor`].
     fn perform(&mut self, action: Action);
 
+    /// Moves the cursor to the given position.
+    fn move_to(&mut self, cursor: Cursor);
+
     /// Returns the current boundaries of the [`Editor`].
     fn bounds(&self) -> Size;