Port · Build: Zed's gpui at 1a28cff

gpui and gpui_platform now come from Zed's repo by git at 1a28cff,
the code gpui-pre 0.3.7 republishes, so the gallery can later build
for the browser. gpui takes stacker, as 0.2.2 always did, and
gpui_platform takes font-kit, without which macOS draws no text;
runtime_shaders moves to gpui_platform.

The API moved: focus, blur and Tab steps take cx, Corner is Anchor,
shaped lines paint with an alignment, defer_draw takes a content
mask, the inspector registers a factory, async updates return their
value, and wrapped lines are shared, not cloned. Updates through a
window context go through the window, so a closed window still ends
them as it did.

Where the new gpui behaves differently, Ely keeps its old intent.
Holds and reveals under a resting pointer survive typing through
gpui's input-modality-independent hover; previews the keyboard also
moves keep the default, and the calendar's leave ignores a key press.
Enter reaches a button inside the code editor, since gpui now arms a
key click on the press. The event logger skips a lone modifier. A
video and an image grid keep their shape in a flex column under
taffy 0.13, as a picture does.

AGENTS.md records the new stack and the rules this port changes; the
rest of the old gpui and taffy rules are re-tested in T44c.

src/documents/blocks/edit.rs

@@ -123,7 +123,7 @@ impl BlockEditor {
             && let Some(field) = block.fields.get(field)
         {
             field.update(cx, |field, cx| field.select(selection, cx));
-            window.focus(&field.focus_handle(cx));
+            window.focus(&field.focus_handle(cx), cx);
         }
         self.current = snapshot;
         cx.emit(BlockEvent::Changed);

src/documents/blocks/mod.rs

@@ -349,7 +349,7 @@ impl BlockEditor {
         if let Some(at) = at {
             field.update(cx, |field, cx| field.select(at..at, cx));
         }
-        window.focus(&field.focus_handle(cx));
+        window.focus(&field.focus_handle(cx), cx);
     }
 
     /// Adds a block after `after`, or first, and puts the caret in it.

src/documents/blocks/table.rs

@@ -248,7 +248,7 @@ pub(super) fn table(
             let wide = span(&merged, columns, row, column);
             line = line.child(
                 div()
-                    .flex_grow()
+                    .flex_grow_1()
                     .flex_basis(gpui::relative(wide as f32 / columns as f32))
                     .min_w_0()
                     .px_2()

src/documents/blocks/tests.rs

@@ -59,7 +59,7 @@ fn caret(editor: &Entity<BlockEditor>, ix: usize, at: usize, cx: &mut VisualTest
     cx.update(|window, cx| {
         let field = editor.read(cx).blocks[ix].fields[0].clone();
         field.update(cx, |field, cx| field.select(at..at, cx));
-        window.focus(&field.focus_handle(cx));
+        window.focus(&field.focus_handle(cx), cx);
     });
     settle(cx);
 }
@@ -211,7 +211,7 @@ fn select(
     cx.update(|window, cx| {
         let field = editor.read(cx).blocks[ix].fields[field].clone();
         field.update(cx, |field, cx| field.select(range, cx));
-        window.focus(&field.focus_handle(cx));
+        window.focus(&field.focus_handle(cx), cx);
     });
     settle(cx);
 }
@@ -280,7 +280,7 @@ fn keys_into_a_merged_cell_land_on_the_cell_that_shows(cx: &mut TestAppContext)
     select(&editor, 0, 0, 1..1, cx);
     cx.update(|window, cx| {
         let field = editor.read(cx).blocks[0].fields[1].clone();
-        window.focus(&field.focus_handle(cx));
+        window.focus(&field.focus_handle(cx), cx);
     });
     settle(cx);
     cx.simulate_keystrokes("down");

src/documents/link.rs

@@ -105,7 +105,7 @@ impl RenderOnce for LinkEditor {
             log::info!("link editor: open over {:?}", linking.range);
             let written = linking.address.clone().unwrap_or_default();
             address.update(cx, |field, cx| field.set_text(written, cx));
-            window.focus(&address.focus_handle(cx));
+            window.focus(&address.focus_handle(cx), cx);
             editing.update(cx, |editing, _| editing.seeded = true);
         }
         let focus = takeover.read(cx).focus.clone();

src/documents/modes.rs

@@ -135,7 +135,7 @@ fn open(
             input.select(0..0, cx);
         }
     });
-    window.focus(&input.focus_handle(cx));
+    window.focus(&input.focus_handle(cx), cx);
     let blur = {
         let (state, field) = (state.clone(), field.clone());
         cx.subscribe(&input, move |_, event: &InputEvent, cx| {

src/documents/reading.rs

@@ -214,7 +214,7 @@ impl RenderOnce for ReadingProgress {
                 move |bounds, _, window, _| {
                     let share = read_share(
                         f32::from(scroll.offset().y),
-                        f32::from(scroll.max_offset().height),
+                        f32::from(scroll.max_offset().y),
                     );
                     let filled = Bounds::new(
                         bounds.origin,

src/documents/tests.rs

@@ -239,7 +239,7 @@ fn escape_leaves_zen_turned_on_from_outside_and_hands_focus_back(cx: &mut TestAp
     cx.update(|window, cx| {
         window.activate_window();
         let outside = zen.read(cx).outside.focus_handle(cx);
-        window.focus(&outside);
+        window.focus(&outside, cx);
     });
     settle(cx);
     zen.update(cx, |zen, cx| {