vim-flight entertainment (#3574)

- vim2 compiling (but mostly commented out)
- More code written, similar lack of workingness so far

Still todo:
[ ] Figure out the focus/blur stuff
[ ] Uncoment more code
[ ] Fix VimTestContext
[ ] Uncomment the tests

Release Notes:

- N/A

crates/editor2/src/editor.rs

@@ -1923,9 +1923,9 @@ impl Editor {
         self.buffer.read(cx).replica_id()
     }
 
-    //     pub fn leader_peer_id(&self) -> Option<PeerId> {
-    //         self.leader_peer_id
-    //     }
+    pub fn leader_peer_id(&self) -> Option<PeerId> {
+        self.leader_peer_id
+    }
 
     pub fn buffer(&self) -> &Model<MultiBuffer> {
         &self.buffer
@@ -9096,10 +9096,7 @@ impl Editor {
         }
     }
 
-    fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
-        // todo!()
-        // let blurred_event = EditorBlurred(cx.handle());
-        // cx.emit_global(blurred_event);
+    pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
         self.blink_manager.update(cx, BlinkManager::disable);
         self.buffer
             .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
@@ -9283,10 +9280,6 @@ pub enum EditorEvent {
     Closed,
 }
 
-pub struct EditorFocused(pub View<Editor>);
-pub struct EditorBlurred(pub View<Editor>);
-pub struct EditorReleased(pub WeakView<Editor>);
-
 impl EventEmitter<EditorEvent> for Editor {}
 
 impl FocusableView for Editor {

crates/editor2/src/element.rs

@@ -1049,7 +1049,12 @@ impl EditorElement {
                                         .chars_at(cursor_position)
                                         .next()
                                         .and_then(|(character, _)| {
-                                            let text = SharedString::from(character.to_string());
+                                            // todo!() currently shape_line panics if text conatins newlines
+                                            let text = if character == '\n' {
+                                                SharedString::from(" ")
+                                            } else {
+                                                SharedString::from(character.to_string())
+                                            };
                                             let len = text.len();
                                             cx.text_system()
                                                 .shape_line(