From eb647be685e7d37995dc42bdf2bdf7689d1aeb5e Mon Sep 17 00:00:00 2001
From: Antonio Scandurra <me@as-cii.com>
Date: Mon, 27 Nov 2023 14:56:46 +0100
Subject: [PATCH] Pass max height manually

---
 crates/editor2/src/editor.rs  | 25 ++++++++++++++++++++-----
 crates/editor2/src/element.rs | 13 ++++---------
 2 files changed, 24 insertions(+), 14 deletions(-)

diff --git a/crates/editor2/src/editor.rs b/crates/editor2/src/editor.rs
index aa34f9ec47..451a3c6535 100644
--- a/crates/editor2/src/editor.rs
+++ b/crates/editor2/src/editor.rs
@@ -906,12 +906,16 @@ impl ContextMenu {
         &self,
         cursor_position: DisplayPoint,
         style: &EditorStyle,
+        max_height: Pixels,
         workspace: Option<WeakView<Workspace>>,
         cx: &mut ViewContext<Editor>,
     ) -> (DisplayPoint, AnyElement) {
         match self {
-            ContextMenu::Completions(menu) => (cursor_position, menu.render(style, workspace, cx)),
-            ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, cx),
+            ContextMenu::Completions(menu) => (
+                cursor_position,
+                menu.render(style, max_height, workspace, cx),
+            ),
+            ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
         }
     }
 }
@@ -1223,6 +1227,7 @@ impl CompletionsMenu {
     fn render(
         &self,
         style: &EditorStyle,
+        max_height: Pixels,
         workspace: Option<WeakView<Workspace>>,
         cx: &mut ViewContext<Editor>,
     ) -> AnyElement {
@@ -1256,7 +1261,7 @@ impl CompletionsMenu {
 
         let multiline_docs = {
             let mat = &self.matches[selected_item];
-            match &self.completions.read()[mat.candidate_id].documentation {
+            let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
                 Some(Documentation::MultiLinePlainText(text)) => {
                     Some(div().child(SharedString::from(text.clone())))
                 }
@@ -1264,7 +1269,12 @@ impl CompletionsMenu {
                     render_parsed_markdown("completions_markdown", parsed, &style, workspace, cx),
                 )),
                 _ => None,
-            }
+            };
+            multiline_docs.map(|div| {
+                div.id("multiline_docs")
+                    .max_h(max_height)
+                    .overflow_y_scroll()
+            })
         };
         let list = uniform_list(
             cx.view().clone(),
@@ -1341,13 +1351,14 @@ impl CompletionsMenu {
                     .collect()
             },
         )
+        .max_h(max_height)
         .track_scroll(self.scroll_handle.clone())
         .with_width_from_item(widest_completion_ix);
 
         Popover::new()
             .child(list)
             .when_some(multiline_docs, |popover, multiline_docs| {
-                popover.aside(multiline_docs.id("multiline_docs").overflow_y_scroll())
+                popover.aside(multiline_docs)
             })
             .into_any_element()
     }
@@ -1466,6 +1477,7 @@ impl CodeActionsMenu {
         &self,
         mut cursor_position: DisplayPoint,
         style: &EditorStyle,
+        max_height: Pixels,
         cx: &mut ViewContext<Editor>,
     ) -> (DisplayPoint, AnyElement) {
         let actions = self.actions.clone();
@@ -1520,6 +1532,7 @@ impl CodeActionsMenu {
         .elevation_1(cx)
         .px_2()
         .py_1()
+        .max_h(max_height)
         .track_scroll(self.scroll_handle.clone())
         .with_width_from_item(
             self.actions
@@ -4377,12 +4390,14 @@ impl Editor {
         &self,
         cursor_position: DisplayPoint,
         style: &EditorStyle,
+        max_height: Pixels,
         cx: &mut ViewContext<Editor>,
     ) -> Option<(DisplayPoint, AnyElement)> {
         self.context_menu.read().as_ref().map(|menu| {
             menu.render(
                 cursor_position,
                 style,
+                max_height,
                 self.workspace.as_ref().map(|(w, _)| w.clone()),
                 cx,
             )
diff --git a/crates/editor2/src/element.rs b/crates/editor2/src/element.rs
index c6035e8734..e591dd84cf 100644
--- a/crates/editor2/src/element.rs
+++ b/crates/editor2/src/element.rs
@@ -1026,14 +1026,8 @@ impl EditorElement {
 
                 if let Some((position, mut context_menu)) = layout.context_menu.take() {
                     cx.with_z_index(1, |cx| {
-                        let line_height = self.style.text.line_height_in_pixels(cx.rem_size());
-                        let available_space = size(
-                            AvailableSpace::MinContent,
-                            AvailableSpace::Definite(
-                                (12. * line_height)
-                                    .min((text_bounds.size.height - line_height) / 2.),
-                            ),
-                        );
+                        let available_space =
+                            size(AvailableSpace::MinContent, AvailableSpace::MinContent);
                         let context_menu_size = context_menu.measure(available_space, cx);
 
                         let cursor_row_layout = &layout.position_map.line_layouts
@@ -1978,8 +1972,9 @@ impl EditorElement {
             if let Some(newest_selection_head) = newest_selection_head {
                 if (start_row..end_row).contains(&newest_selection_head.row()) {
                     if editor.context_menu_visible() {
+                        let max_height = (12. * line_height).min((bounds.size.height - line_height) / 2.);
                         context_menu =
-                            editor.render_context_menu(newest_selection_head, &self.style, cx);
+                            editor.render_context_menu(newest_selection_head, &self.style, max_height, cx);
                     }
 
                     let active = matches!(