progress

gpx-rs/wasm/src/command/history.rs

@@ -0,0 +1,30 @@
+//! Undo and redo.
+
+use gpx_engine::Action;
+use wasm_bindgen::prelude::*;
+
+use crate::ts::Outcome;
+
+use crate::session::*;
+
+// Undo-redo
+
+#[wasm_bindgen]
+pub fn undo() -> Outcome {
+    execute(Action::Undo)
+}
+
+#[wasm_bindgen]
+pub fn redo() -> Outcome {
+    execute(Action::Redo)
+}
+
+#[wasm_bindgen]
+pub fn can_undo() -> bool {
+    with_engine(|e| e.can_undo()).unwrap_or(false)
+}
+
+#[wasm_bindgen]
+pub fn can_redo() -> bool {
+    with_engine(|e| e.can_redo()).unwrap_or(false)
+}