add find-in-files sidebar panel + Ctrl/Cmd+Shift+F

The find-in-files UI on top of the search.grep engine. A
FindInFilesController drives search.grep, accumulates streamed
search.match events (scoped to the active searchId, stale ids
ignored) grouped by file, and opens a match in the editor at its line.
The SearchPanelView contributes a sidebar tab: a debounced query box,
regex + case toggles, include/exclude glob fields, and a grouped
results list with the matched span highlighted.

findInFiles.open (Ctrl/Cmd+Shift+F) reveals and activates the search
tab.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
2026-05-31 20:53:50 +02:00
co-authored by Claude Opus 4.8
parent 399a4d3a3f
commit f96c565acd
13 changed files with 695 additions and 7 deletions
+3
View File
@@ -18,6 +18,9 @@ heading, and (b) bumping `pubspec.yaml` `version:` in the same commit.
### Added
- Find-in-files sidebar panel (Ctrl/Cmd+Shift+F): search the workspace with
regex and case toggles plus include/exclude globs; results stream in grouped
by file and clicking a match opens the editor at that line. (T-52)
- Workspace content-search engine with `search.grep` / `search.cancel` commands:
a pure-Dart, isolate-parallel grep (literal or regex, case + include/exclude
glob filters) that streams matches and honours the `ignore_files:` chain. The
+4
View File
@@ -76,6 +76,10 @@ bindings:
keys: escape
when: quickOpen.open
# -- Find in files ----------------------------------------------------
- intent: findInFiles.open
keys: [ctrl+shift+f, meta+shift+f]
# -- Text scale -------------------------------------------------------
# On most layouts `+` is `shift+equal`; we bind both so users who
# think of it as Ctrl+Plus and users who hit Ctrl+= both work.
+8
View File
@@ -125,6 +125,14 @@ class _RootShellState extends State<_RootShell> {
return null;
},
),
FindInFilesIntent: CallbackAction<FindInFilesIntent>(
onInvoke: (_) {
widget.services.arrangement.setVisible(Slots.sidebar, true);
widget.services.arrangement.setCollapsed(Slots.sidebar, false);
widget.services.panels.activateTab(Slots.sidebar, 'search.findInFiles');
return null;
},
),
FocusNextPanelIntent: CallbackAction<FocusNextPanelIntent>(
onInvoke: (_) {
widget.services.focus.focusNextSlot();
+3
View File
@@ -0,0 +1,3 @@
export 'src/extension.dart';
export 'src/find_in_files_controller.dart';
export 'src/search_panel_view.dart';
+31
View File
@@ -0,0 +1,31 @@
import 'package:clide/builtin/search/src/search_panel_view.dart';
import 'package:clide/extension/extension.dart';
import 'package:clide/kernel/kernel.dart';
import 'package:clide/widgets/widgets.dart';
/// Find-in-files panel. Contributes a sidebar tab that runs workspace
/// content searches through the daemon's `search.*` subsystem (the
/// pure-Dart isolate-pool grep, D-79) and lists matches grouped by
/// file, click-to-open at the line.
class SearchExtension extends ClideExtension {
@override
String get id => 'builtin.search';
@override
String get title => 'Search';
@override
String get version => '0.1.0';
@override
List<String> get dependsOn => const [];
@override
List<ContributionPoint> get contributions => [
TabContribution(
id: 'search.findInFiles',
slot: Slots.sidebar,
title: 'Search',
icon: PhosphorIcons.magnifyingGlass,
priority: -90,
build: (_) => const SearchPanelView(),
),
];
}
@@ -0,0 +1,152 @@
/// State model for the find-in-files panel (T-52, per D-79).
///
/// Holds the query + option state, drives the `search.grep` IPC verb,
/// and accumulates streamed `search.match` events (scoped to the active
/// searchId) into a per-file grouping. Re-running cancels the prior
/// search; results from a stale search id are ignored.
library;
import 'dart:async';
import 'package:clide/kernel/kernel.dart';
import 'package:clide/src/search/match.dart';
import 'package:flutter/foundation.dart';
class FindInFilesController extends ChangeNotifier {
FindInFilesController({required this.ipc, required this.events}) {
_sub = events.on<DaemonEvent>().listen(_onEvent);
}
final DaemonClient ipc;
final DaemonBus events;
StreamSubscription<DaemonEvent>? _sub;
// -- Query state ----------------------------------------------------------
String pattern = '';
bool regex = false;
bool ignoreCase = false;
String includeGlobs = '';
String excludeGlobs = '';
// -- Result state ---------------------------------------------------------
String? _activeSearchId;
final List<SearchMatch> _matches = [];
bool _running = false;
bool _done = false;
String? _error;
List<SearchMatch> get matches => List.unmodifiable(_matches);
bool get running => _running;
bool get done => _done;
String? get error => _error;
int get matchCount => _matches.length;
/// Matches grouped by file path, preserving first-seen file order.
Map<String, List<SearchMatch>> grouped() {
final out = <String, List<SearchMatch>>{};
for (final m in _matches) {
(out[m.path] ??= []).add(m);
}
return out;
}
int get fileCount => grouped().length;
void setRegex(bool v) {
if (regex == v) return;
regex = v;
notifyListeners();
}
void setIgnoreCase(bool v) {
if (ignoreCase == v) return;
ignoreCase = v;
notifyListeners();
}
set include(String v) => includeGlobs = v;
set exclude(String v) => excludeGlobs = v;
/// Start a search with the current query/options. Cancels any
/// in-flight search first and clears prior results.
Future<void> run(String query) async {
pattern = query;
if (_activeSearchId != null) {
unawaited(ipc.request('search.cancel', args: {'searchId': _activeSearchId}));
_activeSearchId = null;
}
_matches.clear();
_error = null;
_done = false;
if (pattern.trim().isEmpty) {
_running = false;
notifyListeners();
return;
}
_running = true;
notifyListeners();
final resp = await ipc.request('search.grep', args: {
'pattern': pattern,
'regex': regex,
'ignoreCase': ignoreCase,
'include': _split(includeGlobs),
'exclude': _split(excludeGlobs),
});
if (!resp.ok) {
_error = resp.error?.message ?? 'search failed';
_running = false;
notifyListeners();
return;
}
_activeSearchId = resp.data['searchId'] as String?;
}
/// Stop the in-flight search, if any.
void cancel() {
if (_activeSearchId != null) {
unawaited(ipc.request('search.cancel', args: {'searchId': _activeSearchId}));
_activeSearchId = null;
}
_running = false;
notifyListeners();
}
/// Open a match in the editor at its line (search always lands on the
/// source line, even for `.md`, which the reader can't position).
void openMatch(SearchMatch m) {
unawaited(ipc.request('editor.open', args: {'path': m.path, 'line': m.line}));
}
void _onEvent(DaemonEvent e) {
if (e.subsystem != 'search') return;
if (e.data['searchId'] != _activeSearchId) return; // stale / cancelled
switch (e.kind) {
case 'search.match':
final raw = (e.data['matches'] as List?) ?? const [];
for (final m in raw.whereType<Map>()) {
_matches.add(SearchMatch.fromJson(m.cast<String, Object?>()));
}
notifyListeners();
case 'search.done':
_running = false;
_done = true;
_activeSearchId = null;
notifyListeners();
case 'search.error':
_error = e.data['message'] as String? ?? 'search error';
_running = false;
_activeSearchId = null;
notifyListeners();
}
}
static List<String> _split(String s) => s.split(RegExp(r'[,\s]+')).where((x) => x.isNotEmpty).toList();
@override
void dispose() {
_sub?.cancel();
_sub = null;
super.dispose();
}
}
@@ -0,0 +1,250 @@
/// The find-in-files sidebar panel (T-52, per D-79). A search input
/// with regex/case toggles + include/exclude glob fields, and a results
/// list grouped by file. Clicking a match opens the editor at its line.
library;
import 'package:clide/builtin/search/src/find_in_files_controller.dart';
import 'package:clide/kernel/kernel.dart';
import 'package:clide/src/search/match.dart';
import 'package:clide/widgets/widgets.dart';
import 'package:flutter/widgets.dart';
class SearchPanelView extends StatefulWidget {
const SearchPanelView({super.key});
@override
State<SearchPanelView> createState() => _SearchPanelViewState();
}
class _SearchPanelViewState extends State<SearchPanelView> {
FindInFilesController? _controller;
@override
void didChangeDependencies() {
super.didChangeDependencies();
if (_controller != null) return;
final kernel = ClideKernel.of(context);
_controller = FindInFilesController(ipc: kernel.ipc, events: kernel.events);
}
@override
void dispose() {
_controller?.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
final tokens = ClideTheme.of(context).surface;
final c = _controller!;
return ListenableBuilder(
listenable: c,
builder: (context, _) {
final groups = c.grouped();
return Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
Padding(
padding: const EdgeInsets.all(8),
child: Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
ClideFilterBox(hint: 'Search', onChanged: c.run, onSubmitted: c.run),
const SizedBox(height: 6),
Row(
children: [
_Toggle(
label: '.*',
tooltip: 'Regular expression',
active: c.regex,
tokens: tokens,
onTap: () {
c.setRegex(!c.regex);
c.run(c.pattern);
},
),
const SizedBox(width: 6),
_Toggle(
label: 'Aa',
tooltip: 'Case insensitive',
active: c.ignoreCase,
tokens: tokens,
onTap: () {
c.setIgnoreCase(!c.ignoreCase);
c.run(c.pattern);
},
),
const Spacer(),
_StatusText(c, tokens),
],
),
const SizedBox(height: 6),
ClideFilterBox(hint: 'files to include (e.g. *.dart)', debounce: Duration.zero, onChanged: (v) => c.include = v),
const SizedBox(height: 4),
ClideFilterBox(hint: 'files to exclude', debounce: Duration.zero, onChanged: (v) => c.exclude = v),
],
),
),
if (c.error != null)
Padding(
padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 4),
child: ClideText(c.error!, color: tokens.globalTextMuted, fontSize: clideFontCaption),
),
Expanded(
child: ListView(
padding: EdgeInsets.zero,
children: [
for (final entry in groups.entries) _FileGroup(path: entry.key, matches: entry.value, tokens: tokens, onTap: c.openMatch),
],
),
),
],
);
},
);
}
}
class _Toggle extends StatelessWidget {
const _Toggle({
required this.label,
required this.tooltip,
required this.active,
required this.tokens,
required this.onTap,
});
final String label;
final String tooltip;
final bool active;
final SurfaceTokens tokens;
final VoidCallback onTap;
@override
Widget build(BuildContext context) {
return Semantics(
button: true,
label: tooltip,
toggled: active,
child: ClideTappable(
onTap: onTap,
builder: (context, hovered, _) => Container(
padding: const EdgeInsets.symmetric(horizontal: 6, vertical: 2),
decoration: BoxDecoration(
color: active ? tokens.listItemSelectedBackground : (hovered ? tokens.sidebarItemHover : null),
border: Border.all(color: active ? tokens.globalFocus : tokens.buttonBorder),
borderRadius: BorderRadius.circular(3),
),
child: ClideText(
label,
fontFamily: clideMonoFamily,
fontSize: clideFontCaption,
color: active ? tokens.listItemSelectedForeground : tokens.sidebarForeground,
),
),
),
);
}
}
class _StatusText extends StatelessWidget {
const _StatusText(this.c, this.tokens);
final FindInFilesController c;
final SurfaceTokens tokens;
@override
Widget build(BuildContext context) {
final String text;
if (c.running) {
text = 'Searching…';
} else if (c.matchCount == 0 && c.done) {
text = 'No results';
} else if (c.matchCount > 0) {
text = '${c.matchCount} in ${c.fileCount}';
} else {
text = '';
}
return ClideText(text, color: tokens.globalTextMuted, fontSize: clideFontCaption);
}
}
class _FileGroup extends StatelessWidget {
const _FileGroup({required this.path, required this.matches, required this.tokens, required this.onTap});
final String path;
final List<SearchMatch> matches;
final SurfaceTokens tokens;
final void Function(SearchMatch) onTap;
@override
Widget build(BuildContext context) {
return Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
Container(
color: tokens.panelHeader,
padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 3),
child: Row(
children: [
Expanded(
child: ClideText(path, maxLines: 1, overflow: TextOverflow.ellipsis, color: tokens.panelHeaderForeground),
),
ClideText('${matches.length}', fontSize: clideFontCaption, color: tokens.globalTextMuted),
],
),
),
for (final m in matches) _MatchRow(match: m, tokens: tokens, onTap: () => onTap(m)),
],
);
}
}
class _MatchRow extends StatelessWidget {
const _MatchRow({required this.match, required this.tokens, required this.onTap});
final SearchMatch match;
final SurfaceTokens tokens;
final VoidCallback onTap;
@override
Widget build(BuildContext context) {
return Semantics(
button: true,
label: 'Open ${match.path} line ${match.line}',
onTap: onTap,
child: ClideTappable(
onTap: onTap,
builder: (context, hovered, _) => Container(
color: hovered ? tokens.listItemHoverBackground : null,
padding: const EdgeInsets.only(left: 18, right: 8, top: 2, bottom: 2),
child: Row(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
SizedBox(
width: 36,
child: ClideText('${match.line}', fontSize: clideFontCaption, fontFamily: clideMonoFamily, color: tokens.globalTextMuted),
),
Expanded(child: _highlighted()),
],
),
),
),
);
}
Widget _highlighted() {
final line = match.preview;
final start = match.matchStart.clamp(0, line.length);
final end = match.matchEnd.clamp(start, line.length);
final base = TextStyle(fontFamily: clideMonoFamily, fontSize: clideFontCaption, color: tokens.sidebarForeground);
return RichText(
maxLines: 1,
overflow: TextOverflow.ellipsis,
text: TextSpan(style: base, children: [
TextSpan(text: line.substring(0, start)),
TextSpan(text: line.substring(start, end), style: base.copyWith(color: tokens.globalFocus, fontWeight: FontWeight.bold)),
TextSpan(text: line.substring(end)),
]),
);
}
}
+8
View File
@@ -77,6 +77,13 @@ class QuickOpenAcceptIntent extends Intent {
const QuickOpenAcceptIntent();
}
// -- Find in files ----------------------------------------------------------
/// Reveal the find-in-files search panel in the sidebar.
class FindInFilesIntent extends Intent {
const FindInFilesIntent();
}
// -- Text scale -------------------------------------------------------------
class TextScaleIncreaseIntent extends Intent {
@@ -122,6 +129,7 @@ final Map<String, Intent Function()> builtinIntents = {
'quickOpen.selectNext': () => const QuickOpenSelectNextIntent(),
'quickOpen.selectPrevious': () => const QuickOpenSelectPreviousIntent(),
'quickOpen.accept': () => const QuickOpenAcceptIntent(),
'findInFiles.open': () => const FindInFilesIntent(),
'text.scaleIncrease': () => const TextScaleIncreaseIntent(),
'text.scaleDecrease': () => const TextScaleDecreaseIntent(),
'text.scaleReset': () => const TextScaleResetIntent(),
+2
View File
@@ -12,6 +12,7 @@ import 'package:clide/builtin/editor/editor.dart';
import 'package:clide/builtin/extensions_ui/extensions_ui.dart';
import 'package:clide/builtin/files/files.dart';
import 'package:clide/builtin/git/git.dart';
import 'package:clide/builtin/search/search.dart';
import 'package:clide/builtin/grammars_core/grammars_core.dart';
import 'package:clide/builtin/graph/graph.dart';
import 'package:clide/builtin/ipc_status/ipc_status.dart';
@@ -246,6 +247,7 @@ Future<void> main() async {
..register(TicketsExtension())
..register(DecisionsExtension())
..register(FilesExtension())
..register(SearchExtension())
..register(GitExtension())
..register(PqlExtension())
..register(ProblemsExtension())
@@ -0,0 +1,151 @@
/// Unit tests for [FindInFilesController] — query state, streamed match
/// accumulation, grouping, stale-id filtering, cancel, and open (T-52).
library;
import 'package:clide/builtin/search/src/find_in_files_controller.dart';
import 'package:clide/clide.dart';
import 'package:clide/kernel/kernel.dart';
import 'package:clide/src/search/match.dart';
import 'package:flutter_test/flutter_test.dart';
import '../../helpers/kernel_fixture.dart';
IpcResponse _ok(Map<String, Object?> data) => IpcResponse.ok(id: '', data: data);
void main() {
late KernelFixture f;
FindInFilesController? ctrl;
setUp(() async {
f = await KernelFixture.create();
f.ipc.stub('search.grep', (_) async => _ok({'searchId': 's1'}));
f.ipc.stub('search.cancel', (_) async => _ok(const {}));
f.ipc.stub('editor.open', (_) async => _ok(const {}));
});
tearDown(() async {
ctrl?.dispose();
ctrl = null;
await f.dispose();
});
FindInFilesController make() => ctrl = FindInFilesController(ipc: f.ipc, events: f.services.events);
void emitMatch(String id, List<Map<String, Object?>> matches) {
f.services.events.emit(DaemonEvent(
subsystem: 'search',
kind: 'search.match',
data: {'searchId': id, 'matches': matches},
ts: DateTime.now().toUtc(),
));
}
Map<String, Object?> m(String path, int line) => {'path': path, 'line': line, 'matchStart': 0, 'matchEnd': 3, 'preview': 'foo bar'};
test('run sends search.grep with the current options and sets running', () async {
Map<String, Object?>? sent;
f.ipc.stub('search.grep', (args) async {
sent = args;
return _ok({'searchId': 's1'});
});
final c = make()
..setRegex(true)
..setIgnoreCase(true);
c.include = '*.dart';
await c.run('foo');
expect(sent!['pattern'], 'foo');
expect(sent!['regex'], isTrue);
expect(sent!['ignoreCase'], isTrue);
expect(sent!['include'], ['*.dart']);
});
test('empty pattern clears without dispatching a search', () async {
var called = false;
f.ipc.stub('search.grep', (_) async {
called = true;
return _ok({'searchId': 's1'});
});
final c = make();
await c.run(' ');
expect(called, isFalse);
expect(c.running, isFalse);
});
test('streamed matches accumulate and group by file', () async {
final c = make();
await c.run('foo');
emitMatch('s1', [m('a.dart', 1), m('a.dart', 5), m('b.dart', 2)]);
await Future<void>.delayed(Duration.zero);
expect(c.matchCount, 3);
final g = c.grouped();
expect(g.keys, containsAll(['a.dart', 'b.dart']));
expect(g['a.dart'], hasLength(2));
expect(c.fileCount, 2);
});
test('matches from a stale search id are ignored', () async {
final c = make();
await c.run('foo'); // activeSearchId == s1
emitMatch('OLD', [m('z.dart', 9)]);
await Future<void>.delayed(Duration.zero);
expect(c.matchCount, 0);
});
test('search.done clears running', () async {
final c = make();
await c.run('foo');
f.services.events.emit(DaemonEvent(
subsystem: 'search',
kind: 'search.done',
data: const {'searchId': 's1', 'cancelled': false},
ts: DateTime.now().toUtc(),
));
await Future<void>.delayed(Duration.zero);
expect(c.running, isFalse);
expect(c.done, isTrue);
});
test('search.error surfaces the message', () async {
final c = make();
await c.run('(bad');
f.services.events.emit(DaemonEvent(
subsystem: 'search',
kind: 'search.error',
data: const {'searchId': 's1', 'message': 'invalid regex: x'},
ts: DateTime.now().toUtc(),
));
await Future<void>.delayed(Duration.zero);
expect(c.error, contains('invalid regex'));
expect(c.running, isFalse);
});
test('re-running clears prior results', () async {
final c = make();
await c.run('foo');
emitMatch('s1', [m('a.dart', 1)]);
await Future<void>.delayed(Duration.zero);
expect(c.matchCount, 1);
await c.run('bar');
expect(c.matchCount, 0); // cleared on new run
});
test('openMatch issues editor.open with the line', () async {
Map<String, Object?>? sent;
f.ipc.stub('editor.open', (args) async {
sent = args;
return _ok(const {});
});
final c = make();
c.openMatch(const SearchMatch(path: 'a.dart', line: 7, matchStart: 0, matchEnd: 3, preview: 'foo'));
await Future<void>.delayed(Duration.zero);
expect(sent!['path'], 'a.dart');
expect(sent!['line'], 7);
});
test('cancel stops running', () async {
final c = make();
await c.run('foo');
expect(c.running, isTrue);
c.cancel();
expect(c.running, isFalse);
});
}
@@ -0,0 +1,72 @@
/// Widget test for [SearchPanelView] — searching renders streamed
/// matches grouped by file and clicking a match opens it (T-52).
library;
import 'package:clide/builtin/search/src/search_panel_view.dart';
import 'package:clide/clide.dart';
import 'package:clide/kernel/kernel.dart';
import 'package:flutter/widgets.dart';
import 'package:flutter_test/flutter_test.dart';
import '../../helpers/kernel_fixture.dart';
import '../../helpers/widget_harness.dart';
IpcResponse _ok(Map<String, Object?> data) => IpcResponse.ok(id: '', data: data);
void main() {
late KernelFixture f;
setUp(() async {
f = await KernelFixture.create();
f.ipc.stub('search.grep', (_) async => _ok({'searchId': 's1'}));
f.ipc.stub('search.cancel', (_) async => _ok(const {}));
});
tearDown(() => f.dispose());
void emitMatches() {
f.services.events.emit(DaemonEvent(
subsystem: 'search',
kind: 'search.match',
data: const {
'searchId': 's1',
'matches': [
{'path': 'lib/a.dart', 'line': 12, 'matchStart': 6, 'matchEnd': 9, 'preview': 'final foo = 1;'},
],
},
ts: DateTime.now().toUtc(),
));
}
testWidgets('search renders matches grouped by file', (tester) async {
await tester.pumpWidget(harness(f, const SearchPanelView()));
await tester.enterText(find.byType(EditableText).first, 'foo');
await tester.pump(const Duration(milliseconds: 250)); // debounce → run()
await pumpAsync(tester); // search.grep resolves; activeSearchId set
emitMatches();
await pumpAsync(tester);
expect(find.text('lib/a.dart'), findsOneWidget); // file group header
expect(find.text('12'), findsOneWidget); // line number
});
testWidgets('tapping a match opens the editor at its line', (tester) async {
Map<String, Object?>? opened;
f.ipc.stub('editor.open', (args) async {
opened = args;
return _ok(const {});
});
await tester.pumpWidget(harness(f, const SearchPanelView()));
await tester.enterText(find.byType(EditableText).first, 'foo');
await tester.pump(const Duration(milliseconds: 250));
await pumpAsync(tester);
emitMatches();
await pumpAsync(tester);
await tester.tap(find.text('12')); // the match row's line number
await pumpAsync(tester);
expect(opened, isNotNull);
expect(opened!['path'], 'lib/a.dart');
expect(opened!['line'], 12);
});
}
+4
View File
@@ -35,6 +35,10 @@ void main() {
expect(parseIntentId('quickOpen.accept'), isA<QuickOpenAcceptIntent>());
});
test('returns the findInFiles.open intent', () {
expect(parseIntentId('findInFiles.open'), isA<FindInFilesIntent>());
});
test('returns the text.scale* intents', () {
expect(parseIntentId('text.scaleIncrease'), isA<TextScaleIncreaseIntent>());
expect(parseIntentId('text.scaleDecrease'), isA<TextScaleDecreaseIntent>());
+7 -7
View File
@@ -18,10 +18,12 @@ void main() {
setUp(() async {
f = await KernelFixture.create();
f.ipc.stub('files.walk', (_) async => IpcResponse.ok(id: '1', data: const {
'files': ['lib/main.dart', 'lib/app.dart', 'README.md'],
'truncated': false,
}));
f.ipc.stub(
'files.walk',
(_) async => IpcResponse.ok(id: '1', data: const {
'files': ['lib/main.dart', 'lib/app.dart', 'README.md'],
'truncated': false,
}));
f.ipc.stub('editor.open', (args) async => IpcResponse.ok(id: '1', data: {'path': args['path']}));
});
tearDown(() => f.dispose());
@@ -63,9 +65,7 @@ void main() {
testWidgets('tapping an md result publishes to the markdown reader bus', (tester) async {
final published = <Message>[];
final sub = f.services.messages
.subscribe(publisher: 'builtin.markdown', channel: 'selection')
.listen(published.add);
final sub = f.services.messages.subscribe(publisher: 'builtin.markdown', channel: 'selection').listen(published.add);
addTearDown(sub.cancel);
await tester.pumpWidget(harness(f, const QuickOpenOverlay()));