add pull request panel

crates/workspace/src/views/repo_detail/mod.rs

@@ -33,6 +33,7 @@ mod commits;
 mod diff;
 mod helpers;
 mod issues;
+mod pull_requests;
 
 use browser::{
     CodeView, FileContent, MAX_PREVIEW_BYTES, MAX_PREVIEW_CACHE_BYTES, MAX_PREVIEWED_FILES,
@@ -42,6 +43,7 @@ use commits::COMMIT_ROW_HEIGHT;
 use diff::CommitDiffView;
 use helpers::{TreeItemSeed, build_tree_items, is_markdown_path, track, tree_items};
 use issues::IssuesView;
+use pull_requests::PullRequestsView;
 
 /// What kind of ref the header selectors switch to.
 #[derive(Clone, Copy, PartialEq, Eq)]
@@ -667,10 +669,18 @@ impl RepoDetailView {
         });
     }
 
-    /// Open the pull request detail view (not implemented yet).
-    fn open_pull_request_detail(&mut self, _window: &mut Window, _cx: &mut Context<Self>) {
-        // TODO: open a per-PR detail view in the dock area, like
-        // [`Self::open_commit_diff`].
+    /// Open the pull requests panel at the bottom of the dock area.
+    fn open_pull_request_detail(&mut self, window: &mut Window, cx: &mut Context<Self>) {
+        let Some(dock_area) = self.dock_area.upgrade() else {
+            return;
+        };
+
+        let panel = cx
+            .new(|cx| PullRequestsView::new(self.store.clone(), self.display_name(cx), window, cx));
+
+        dock_area.update(cx, |dock_area, cx| {
+            dock_area.add_panel(Arc::new(panel), DockPlacement::Center, None, window, cx);
+        });
     }
 
     /// Check out `name` (a branch or tag picked in the header) and refresh