Return optional transaction ids from undo/redo

This will allow the editor to restore selections that it associated with the start or end of a transaction.
2021-12-10 18:08:26 -07:00
parent 77defe6e28
commit f35c419f43
3 changed files with 32 additions and 18 deletions
@@ -224,14 +224,14 @@ impl MultiBuffer {
        })
    }

-    pub fn undo(&mut self, cx: &mut ModelContext<Self>) {
+    pub fn undo(&mut self, cx: &mut ModelContext<Self>) -> Option<TransactionId> {
        // TODO
        self.as_singleton()
            .unwrap()
            .update(cx, |buffer, cx| buffer.undo(cx))
    }

-    pub fn redo(&mut self, cx: &mut ModelContext<Self>) {
+    pub fn redo(&mut self, cx: &mut ModelContext<Self>) -> Option<TransactionId> {
        // TODO
        self.as_singleton()
            .unwrap()