logiguard fork: GPUI xdg-activation keyboard-focus serial fix

Single-commit orphan branch: full zed-industries/zed @ 8c74db0 source tree
with a 3-file patch applied (no upstream history).

Patch (crates/gpui_linux/src/linux/wayland/):
  - serial.rs: add SerialKind::KeyboardEnter
  - client.rs: store wl_keyboard.enter serial; add latest_serial_of()
  - window.rs: activate() uses keyboard-enter serial (Mutter focus gate)

Mutter honors window activation only when the token carries the keyboard-
focus serial from wl_keyboard.enter; GPUI used a stale mouse-press serial.
See docs/tray-window-focus-wayland.md in logiguard.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

crates/editor/benches/editor_render.rs

@@ -0,0 +1,167 @@
+use criterion::{Bencher, BenchmarkId};
+use editor::{
+    Editor, EditorMode, MultiBuffer,
+    actions::{DeleteToPreviousWordStart, SelectAll, SplitSelectionIntoLines},
+};
+use gpui::{AppContext, Focusable as _, TestAppContext, TestDispatcher};
+use rand::{Rng as _, SeedableRng as _, rngs::StdRng};
+use settings::SettingsStore;
+use ui::IntoElement;
+use util::RandomCharIter;
+
+fn editor_input_with_1000_cursors(bencher: &mut Bencher<'_>, cx: &TestAppContext) {
+    let mut cx = cx.clone();
+    let text = String::from_iter(["line:\n"; 1000]);
+    let buffer = cx.update(|cx| MultiBuffer::build_simple(&text, cx));
+
+    let cx = cx.add_empty_window();
+    let editor = cx.update(|window, cx| {
+        let editor = cx.new(|cx| {
+            let mut editor = Editor::new(EditorMode::full(), buffer, None, window, cx);
+            editor.set_style(editor::EditorStyle::default(), window, cx);
+            editor.select_all(&SelectAll, window, cx);
+            editor.split_selection_into_lines(
+                &SplitSelectionIntoLines {
+                    keep_selections: true,
+                },
+                window,
+                cx,
+            );
+            editor
+        });
+        window.focus(&editor.focus_handle(cx), cx);
+        editor
+    });
+
+    bencher.iter(|| {
+        cx.update(|window, cx| {
+            editor.update(cx, |editor, cx| {
+                editor.handle_input("hello world", window, cx);
+                editor.delete_to_previous_word_start(
+                    &DeleteToPreviousWordStart {
+                        ignore_newlines: false,
+                        ignore_brackets: false,
+                    },
+                    window,
+                    cx,
+                );
+                editor.delete_to_previous_word_start(
+                    &DeleteToPreviousWordStart {
+                        ignore_newlines: false,
+                        ignore_brackets: false,
+                    },
+                    window,
+                    cx,
+                );
+            });
+        })
+    });
+}
+
+fn open_editor_with_one_long_line(bencher: &mut Bencher<'_>, args: &(String, TestAppContext)) {
+    let (text, cx) = args;
+    let mut cx = cx.clone();
+
+    bencher.iter(|| {
+        let buffer = cx.update(|cx| MultiBuffer::build_simple(&text, cx));
+
+        let cx = cx.add_empty_window();
+        let _ = cx.update(|window, cx| {
+            let editor = cx.new(|cx| {
+                let mut editor = Editor::new(EditorMode::full(), buffer, None, window, cx);
+                editor.set_style(editor::EditorStyle::default(), window, cx);
+                editor
+            });
+            window.focus(&editor.focus_handle(cx), cx);
+            editor
+        });
+    });
+}
+
+fn editor_render(bencher: &mut Bencher<'_>, cx: &TestAppContext) {
+    let mut cx = cx.clone();
+    let buffer = cx.update(|cx| {
+        let mut rng = StdRng::seed_from_u64(1);
+        let text_len = rng.random_range(10000..90000);
+        if rng.random() {
+            let text = RandomCharIter::new(&mut rng)
+                .take(text_len)
+                .collect::<String>();
+            MultiBuffer::build_simple(&text, cx)
+        } else {
+            MultiBuffer::build_random(&mut rng, cx)
+        }
+    });
+
+    let cx = cx.add_empty_window();
+    let editor = cx.update(|window, cx| {
+        let editor = cx.new(|cx| {
+            let mut editor = Editor::new(EditorMode::full(), buffer, None, window, cx);
+            editor.set_style(editor::EditorStyle::default(), window, cx);
+            editor
+        });
+        window.focus(&editor.focus_handle(cx), cx);
+        editor
+    });
+
+    bencher.iter(|| {
+        cx.update(|window, cx| {
+            // editor.update(cx, |editor, cx| editor.move_down(&MoveDown, window, cx));
+            let mut view = editor.clone().into_any_element();
+            let _ = view.request_layout(window, cx);
+            let _ = view.prepaint(window, cx);
+            view.paint(window, cx);
+        });
+    })
+}
+
+pub fn benches() {
+    let dispatcher = TestDispatcher::new(1);
+    let cx = gpui::TestAppContext::build(dispatcher, None);
+    cx.update(|cx| {
+        let store = SettingsStore::test(cx);
+        cx.set_global(store);
+        assets::Assets.load_test_fonts(cx);
+        theme_settings::init(theme::LoadThemes::JustBase, cx);
+        // release_channel::init(semver::Version::new(0,0,0), cx);
+        editor::init(cx);
+    });
+
+    let mut criterion: criterion::Criterion<_> =
+        (criterion::Criterion::default()).configure_from_args();
+
+    // setup app context
+    let mut group = criterion.benchmark_group("Time to render");
+    group.bench_with_input(
+        BenchmarkId::new("editor_render", "TestAppContext"),
+        &cx,
+        editor_render,
+    );
+
+    group.finish();
+
+    let text = String::from_iter(["char"; 1000]);
+    let mut group = criterion.benchmark_group("Build buffer with one long line");
+    group.bench_with_input(
+        BenchmarkId::new("editor_with_one_long_line", "(String, TestAppContext )"),
+        &(text, cx.clone()),
+        open_editor_with_one_long_line,
+    );
+
+    group.finish();
+
+    let mut group = criterion.benchmark_group("multi cursor edits");
+    group.bench_with_input(
+        BenchmarkId::new("editor_input_with_1000_cursors", "TestAppContext"),
+        &cx,
+        editor_input_with_1000_cursors,
+    );
+    group.finish();
+}
+
+fn main() {
+    benches();
+    criterion::Criterion::default()
+        .configure_from_args()
+        .final_summary();
+}