add multiline support to input

examples/gallery/src/main.rs

@@ -46,6 +46,7 @@ struct Gallery {
     volume: f32,
     input_state: Entity<InputState>,
     password_state: Entity<InputState>,
+    notes_state: Entity<InputState>,
     popover_open: bool,
     menu_open: bool,
     strategy: Option<Strategy>,
@@ -362,6 +363,11 @@ impl Render for Gallery {
                         Input::new("gallery-password", self.password_state.clone())
                             .placeholder("Password"),
                     )
+                    .child(
+                        Input::new("gallery-notes", self.notes_state.clone())
+                            .placeholder("Notes — Enter breaks the line, cmd-Enter submits")
+                            .rows(4),
+                    )
                     .child(
                         div()
                             .text_xs()
@@ -1460,6 +1466,8 @@ fn main() {
         let input_state = InputState::new(cx);
         let password_state = InputState::new(cx);
         password_state.update(cx, |state, cx| state.set_password(true, cx));
+        let notes_state = InputState::new(cx);
+        notes_state.update(cx, |state, cx| state.set_multiline(true, cx));
         let bounds = Bounds::centered(None, size(px(720.0), px(560.0)), cx);
         if let Err(err) = cx.open_window(
             WindowOptions {
@@ -1497,6 +1505,7 @@ fn main() {
                         volume: 40.0,
                         input_state,
                         password_state,
+                        notes_state,
                         popover_open: false,
                         menu_open: false,
                         strategy: Some(Strategy::Curated),