fix: ignore no-op map edge edits

frontend/src/components/maps/LocationMapCanvas.jsx

@@ -38,6 +38,31 @@ function clampResizedObjectToMap(object, mapSize) {
   };
 }
 
+function hasObjectBoundsChanged(object, nextObject) {
+  return (
+    object.x !== nextObject.x ||
+    object.y !== nextObject.y ||
+    object.width !== nextObject.width ||
+    object.height !== nextObject.height
+  );
+}
+
+function getDraggedObjectUpdate(object, dragState, deltaX, deltaY, mapSize) {
+  if (dragState.type === "resize") {
+    return clampResizedObjectToMap({
+      ...object,
+      width: Math.max(40, dragState.startObject.width + deltaX),
+      height: Math.max(40, dragState.startObject.height + deltaY),
+    }, mapSize);
+  }
+
+  return clampObjectToMap({
+    ...object,
+    x: dragState.startObject.x + deltaX,
+    y: dragState.startObject.y + deltaY,
+  }, mapSize);
+}
+
 export default function LocationMapCanvas({
   mode,
   objects,
@@ -198,6 +223,11 @@ export default function LocationMapCanvas({
       Math.abs(deltaY) >= DRAG_CHANGE_THRESHOLD;
 
     if (!hasMeaningfulChange) return;
+    const draggedObject = objects.find((object) => getObjectKey(object) === dragState.key);
+    if (!draggedObject) return;
+    const nextDraggedObject = getDraggedObjectUpdate(draggedObject, dragState, deltaX, deltaY, mapSize);
+    if (!hasObjectBoundsChanged(draggedObject, nextDraggedObject)) return;
+
     if (!objectDragHistoryCapturedRef.current) {
       remember();
       objectDragHistoryCapturedRef.current = true;
@@ -206,18 +236,7 @@ export default function LocationMapCanvas({
     updateObjects((currentObjects) =>
       currentObjects.map((object) => {
         if (getObjectKey(object) !== dragState.key) return object;
-        if (dragState.type === "resize") {
+        return getDraggedObjectUpdate(object, dragState, deltaX, deltaY, mapSize);
-          return clampResizedObjectToMap({
-            ...object,
-            width: Math.max(40, dragState.startObject.width + deltaX),
-            height: Math.max(40, dragState.startObject.height + deltaY),
-          }, mapSize);
-        }
-        return clampObjectToMap({
-          ...object,
-          x: dragState.startObject.x + deltaX,
-          y: dragState.startObject.y + deltaY,
-        }, mapSize);
       })
     );
   };
@@ -264,17 +283,20 @@ export default function LocationMapCanvas({
     const nudgeAmount = event.shiftKey ? 25 : 10;
     const deltaX = event.key === "ArrowLeft" ? -nudgeAmount : event.key === "ArrowRight" ? nudgeAmount : 0;
     const deltaY = event.key === "ArrowUp" ? -nudgeAmount : event.key === "ArrowDown" ? nudgeAmount : 0;
+    const nextObject = clampObjectToMap({
+      ...object,
+      x: object.x + deltaX,
+      y: object.y + deltaY,
+    }, mapSize);
+
+    setSelectedObjectKey(getObjectKey(object));
+    if (!hasObjectBoundsChanged(object, nextObject)) return;
 
     remember();
-    setSelectedObjectKey(getObjectKey(object));
     updateObjects((currentObjects) =>
       currentObjects.map((candidate) =>
         getObjectKey(candidate) === getObjectKey(object)
-          ? clampObjectToMap({
+          ? nextObject
-            ...candidate,
-            x: candidate.x + deltaX,
-            y: candidate.y + deltaY,
-          }, mapSize)
           : candidate
       )
     );

frontend/tests/location-map-manager.spec.ts

@@ -2131,7 +2131,9 @@ test("admin cannot nudge map areas outside the canvas", async ({ page }) => {
 
   await expect(bakeryArea).toHaveAttribute("x", "740");
   await expect(bakeryArea).toHaveAttribute("y", "540");
-  await expect(page.locator(".location-map-status")).toHaveText("Unsaved Draft");
+  await expect(page.locator(".location-map-status")).toHaveText("Draft");
+  await expect(page.getByRole("button", { name: "Save Draft" })).toHaveCount(0);
+  await expect(page.getByRole("button", { name: "Undo" })).toBeDisabled();
 });
 
 test("admin cannot resize map areas beyond the canvas", async ({ page }) => {
@@ -2191,7 +2193,9 @@ test("admin cannot resize map areas beyond the canvas", async ({ page }) => {
   await expect(bakeryArea).toHaveAttribute("y", "580");
   await expect(bakeryArea).toHaveAttribute("width", "180");
   await expect(bakeryArea).toHaveAttribute("height", "120");
-  await expect(page.locator(".location-map-status")).toHaveText("Unsaved Draft");
+  await expect(page.locator(".location-map-status")).toHaveText("Draft");
+  await expect(page.getByRole("button", { name: "Save Draft" })).toHaveCount(0);
+  await expect(page.getByRole("button", { name: "Undo" })).toBeDisabled();
 });
 
 test("admin selected map area uses compact editable fields", async ({ page }) => {