From b7a1292d071ab3f7f4a0ad194a2966bdf158d109 Mon Sep 17 00:00:00 2001
From: Jason Lee <huacnlee@gmail.com>
Date: Thu, 24 Oct 2024 11:05:13 +0800
Subject: [PATCH] popup_menu: Add `popup_menu_with_anchor` method to control
 the Anchor for PopupMenu. (#378)

---
 crates/story/src/popup_story.rs |  2 +-
 crates/ui/src/popup_menu.rs     | 11 +++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/crates/story/src/popup_story.rs b/crates/story/src/popup_story.rs
index c4b9a662..7f7f3d3d 100644
--- a/crates/story/src/popup_story.rs
+++ b/crates/story/src/popup_story.rs
@@ -302,7 +302,7 @@ impl Render for PopupStory {
                     .child(
                         Button::new("popup-menu-11112")
                             .label("Scrollable Menu")
-                            .popup_menu(move |this, _| {
+                            .popup_menu_with_anchor(AnchorCorner::TopRight, move |this, _| {
                                 let mut this = this.scrollable();
                                 for i in 0..100 {
                                     this = this.menu(
diff --git a/crates/ui/src/popup_menu.rs b/crates/ui/src/popup_menu.rs
index 540af06b..145d9577 100644
--- a/crates/ui/src/popup_menu.rs
+++ b/crates/ui/src/popup_menu.rs
@@ -32,14 +32,25 @@ pub fn init(cx: &mut AppContext) {
 }
 
 pub trait PopupMenuExt: Selectable + IntoElement + 'static {
+    /// Create a popup menu with the given items, anchored to the TopLeft corner
     fn popup_menu(
         self,
         f: impl Fn(PopupMenu, &mut ViewContext<PopupMenu>) -> PopupMenu + 'static,
+    ) -> Popover<PopupMenu> {
+        self.popup_menu_with_anchor(AnchorCorner::TopLeft, f)
+    }
+
+    /// Create a popup menu with the given items, anchored to the given corner
+    fn popup_menu_with_anchor(
+        self,
+        anchor: impl Into<AnchorCorner>,
+        f: impl Fn(PopupMenu, &mut ViewContext<PopupMenu>) -> PopupMenu + 'static,
     ) -> Popover<PopupMenu> {
         let element_id = self.element_id();
         Popover::new(SharedString::from(format!("popup-menu:{:?}", element_id)))
             .no_style()
             .trigger(self)
+            .anchor(anchor.into())
             .content(move |cx| PopupMenu::build(cx, |menu, cx| f(menu, cx)))
     }
 }