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/tooling/tests/inspection.rs

@@ -120,7 +120,7 @@ fn tab_passes_through_the_panel(cx: &mut TestAppContext) {
         )
     });
     cx.update(|window, cx| {
-        window.focus(&root);
+        window.focus(&root, cx);
         window.toggle_inspector(cx);
     });
     cx.run_until_parked();
@@ -227,7 +227,7 @@ fn the_logger_lists_events(cx: &mut TestAppContext) {
         field: cx.new(|cx| TextInput::new(window, cx)),
     });
     let target = view.read_with(cx, |logged, _| logged.target.clone());
-    cx.update(|window, _| window.focus(&target));
+    cx.update(|window, cx| window.focus(&target, cx));
     cx.run_until_parked();
     assert!(shown("event-logger-empty", cx));
     cx.simulate_mouse_move(point(px(20.0), px(20.0)), None, Modifiers::none());
@@ -257,10 +257,16 @@ fn the_logger_lists_events(cx: &mut TestAppContext) {
     assert!(shown("event-key up a", cx));
     cx.simulate_modifiers_change(Modifiers::shift());
     assert!(shown("event-modifiers shift", cx));
+    cx.simulate_modifiers_change(Modifiers::none());
+    assert!(shown("event-modifiers none", cx));
+    assert!(
+        !shown("event-key down shift", cx),
+        "a lone modifier is no key"
+    );
     let (field, root) = view.read_with(cx, |logged, cx| {
         (logged.field.focus_handle(cx), logged.root.clone())
     });
-    cx.update(|window, _| window.focus(&field));
+    cx.update(|window, cx| window.focus(&field, cx));
     for key in ["b", "c", "backspace", "left", "enter"] {
         press(key, cx);
     }
@@ -273,7 +279,7 @@ fn the_logger_lists_events(cx: &mut TestAppContext) {
     ] {
         assert!(shown(row, cx), "{row}: a key the field's bindings take");
     }
-    cx.update(|window, _| window.focus(&root));
+    cx.update(|window, cx| window.focus(&root, cx));
     press("z", cx);
     assert!(
         !shown("event-key down z", cx),

src/tooling/tests/mod.rs

@@ -93,7 +93,7 @@ fn knobs_redraw_the_preview(cx: &mut TestAppContext) {
         root: cx.focus_handle(),
     });
     let root = view.read_with(cx, |stage, _| stage.root.clone());
-    cx.update(|window, _| window.focus(&root));
+    cx.update(|window, cx| window.focus(&root, cx));
     settle(cx);
     let shown =
         |selector: &'static str, cx: &mut VisualTestContext| cx.debug_bounds(selector).is_some();