Merge pull request #576 from zed-industries/cursor-shape

Add support for rendering the cursor as a Block and Underscore

Co-authored-by: Max Brunsfeld <max@zed.dev>

crates/editor/src/editor.rs

@@ -450,6 +450,7 @@ pub struct Editor {
     document_highlights_task: Option<Task<()>>,
     pending_rename: Option<RenameState>,
     searchable: bool,
+    cursor_shape: CursorShape,
 }
 
 pub struct EditorSnapshot {
@@ -930,6 +931,7 @@ impl Editor {
             document_highlights_task: Default::default(),
             pending_rename: Default::default(),
             searchable: true,
+            cursor_shape: Default::default(),
         };
         this.end_selection(cx);
         this
@@ -1021,6 +1023,11 @@ impl Editor {
         cx.notify();
     }
 
+    pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
+        self.cursor_shape = cursor_shape;
+        cx.notify();
+    }
+
     pub fn scroll_position(&self, cx: &mut ViewContext<Self>) -> Vector2F {
         let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
         compute_scroll_position(&display_map, self.scroll_position, &self.scroll_top_anchor)
@@ -5584,7 +5591,7 @@ impl View for Editor {
         self.display_map.update(cx, |map, cx| {
             map.set_font(style.text.font_id, style.text.font_size, cx)
         });
-        EditorElement::new(self.handle.clone(), style.clone()).boxed()
+        EditorElement::new(self.handle.clone(), style.clone(), self.cursor_shape).boxed()
     }
 
     fn ui_name() -> &'static str {