Update ScrollView to let content is FnOnce. (#65)

.github/workflows/ci.yml

@@ -16,6 +16,8 @@ jobs:
       - uses: actions/checkout@v4
       - name: Install system dependencies
         run: script/bootstrap
+      - name: Machete
+        uses: bnjbvr/cargo-machete@main
       - name: Setup | Cache Cargo
         uses: actions/cache@v3.0.11
         with:
@@ -27,9 +29,6 @@ jobs:
             target/
           key: ubuntu-test-cargo-${{ hashFiles('**/Cargo.lock') }}
       - name: Lint
-        run: |
-          cargo install cargo-machete
-          cargo machete
-          cargo clippy
+        run: cargo clippy
       - name: Build test
         run: cargo build

crates/ui/src/scroll/scroll_view.rs

@@ -17,7 +17,7 @@ pub struct ScrollView {
     id: ElementId,
     view: AnyView,
     axix: ScrollbarAxis,
-    content: Option<Box<dyn Fn(&mut WindowContext) -> AnyElement + 'static>>,
+    content: Option<Box<dyn FnOnce(&mut WindowContext) -> AnyElement + 'static>>,
 }
 
 impl ScrollView {
@@ -52,7 +52,7 @@ impl ScrollView {
     #[must_use]
     pub fn content<F, E>(mut self, builder: F) -> Self
     where
-        F: Fn(&mut WindowContext) -> E + 'static,
+        F: FnOnce(&mut WindowContext) -> E + 'static,
         E: IntoElement,
     {
         self.content = Some(Box::new(move |cx| builder(cx).into_any_element()));
@@ -125,7 +125,7 @@ impl Element for ScrollView {
         let view = self.view.clone();
 
         let scroll_id = self.id.clone();
-        let content = self.content.as_ref().map(|c| c(cx));
+        let content = self.content.take().map(|c| c(cx));
 
         self.with_element_state(id.unwrap(), cx, |_, element_state, cx| {
             let handle = element_state.handle.clone();