add addres bar auto focus

2026-01-04 10:57:38 +01:00
parent 65e8c2c323
commit ef4913a23e
3 changed files with 153 additions and 43 deletions
@@ -1,32 +0,0 @@
-/*
- * Copyright (c) 2024-2025 Fabian Freund.
- *
- * This file is part of WebLibre
- * (see https://weblibre.eu).
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-import 'package:flutter/foundation.dart';
-import 'package:flutter_hooks/flutter_hooks.dart';
-
-void useListenableCallback(
-  Listenable? listenable,
-  void Function() callback, [
-  List<Object?>? keys,
-]) {
-  useEffect(() {
-    listenable?.addListener(callback);
-    return () => listenable?.removeListener(callback);
-  }, keys ?? [listenable]);
-}
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2024-2025 Fabian Freund.
+ *
+ * This file is part of WebLibre
+ * (see https://weblibre.eu).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+import 'package:flutter/material.dart';
+import 'package:flutter_hooks/flutter_hooks.dart';
+
+/// Adds a given [listener] to a [Listenable] and removes it when the hook is
+/// disposed. The listener is only called when the [selector] result changes.
+///
+/// As opposed to `useListenable`, this hook does not mark the widget as needing
+/// build when the listener is called. Use this for side effects that do not
+/// require a rebuild.
+///
+/// See also:
+///  * [Listenable]
+///  * [ValueListenable]
+///  * [useOnListenableChange]
+void useOnListenableChangeSelector<R>(
+  Listenable? listenable,
+  R Function() selector,
+  VoidCallback listener,
+) {
+  return use(_OnListenableChangeSelectorHook(listenable, selector, listener));
+}
+
+class _OnListenableChangeSelectorHook<R> extends Hook<void> {
+  const _OnListenableChangeSelectorHook(
+    this.listenable,
+    this.selector,
+    this.listener,
+  );
+
+  final Listenable? listenable;
+  final R Function() selector;
+  final VoidCallback listener;
+
+  @override
+  _OnListenableChangeSelectorHookState<R> createState() =>
+      _OnListenableChangeSelectorHookState<R>();
+}
+
+class _OnListenableChangeSelectorHookState<R>
+    extends HookState<void, _OnListenableChangeSelectorHook<R>> {
+  late R _selectorResult = hook.selector();
+
+  @override
+  void initHook() {
+    super.initHook();
+    hook.listenable?.addListener(_listener);
+  }
+
+  @override
+  void didUpdateHook(_OnListenableChangeSelectorHook<R> oldHook) {
+    super.didUpdateHook(oldHook);
+
+    if (hook.selector != oldHook.selector) {
+      _selectorResult = hook.selector();
+    }
+
+    if (hook.listenable != oldHook.listenable) {
+      oldHook.listenable?.removeListener(_listener);
+      hook.listenable?.addListener(_listener);
+      _selectorResult = hook.selector();
+    }
+  }
+
+  @override
+  void build(BuildContext context) {}
+
+  void _listener() {
+    final latestSelectorResult = hook.selector();
+    if (_selectorResult != latestSelectorResult) {
+      _selectorResult = latestSelectorResult;
+      hook.listener();
+    }
+  }
+
+  @override
+  void dispose() {
+    hook.listenable?.removeListener(_listener);
+  }
+
+  @override
+  String get debugLabel => 'useOnListenableChangeSelector<$R>';
+
+  @override
+  Object? get debugValue => hook.listenable;
+}