Add MultiBuffer component

crates/storybook2/src/stories/components/multi_buffer.rs

@@ -0,0 +1,34 @@
+use std::marker::PhantomData;
+
+use ui::prelude::*;
+use ui::{hello_world_rust_buffer_example, MultiBuffer};
+
+use crate::story::Story;
+
+#[derive(Element)]
+pub struct MultiBufferStory<S: 'static + Send + Sync + Clone> {
+    state_type: PhantomData<S>,
+}
+
+impl<S: 'static + Send + Sync + Clone> MultiBufferStory<S> {
+    pub fn new() -> Self {
+        Self {
+            state_type: PhantomData,
+        }
+    }
+
+    fn render(&mut self, cx: &mut ViewContext<S>) -> impl Element<State = S> {
+        let theme = theme(cx);
+
+        Story::container(cx)
+            .child(Story::title_for::<_, MultiBuffer<S>>(cx))
+            .child(Story::label(cx, "Default"))
+            .child(MultiBuffer::new(vec![
+                hello_world_rust_buffer_example(&theme),
+                hello_world_rust_buffer_example(&theme),
+                hello_world_rust_buffer_example(&theme),
+                hello_world_rust_buffer_example(&theme),
+                hello_world_rust_buffer_example(&theme),
+            ]))
+    }
+}