32 lines
1 KiB
Dart
32 lines
1 KiB
Dart
import 'package:aves/model/entry/entry.dart';
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import 'package:aves/widgets/viewer/multipage/controller.dart';
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import 'package:collection/collection.dart';
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class MultiPageConductor {
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final List<MultiPageController> _controllers = [];
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static const maxControllerCount = 3;
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Future<void> dispose() async {
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await Future.forEach<MultiPageController>(_controllers, (controller) => controller.dispose());
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_controllers.clear();
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}
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MultiPageController getOrCreateController(AvesEntry entry) {
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var controller = getController(entry);
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if (controller != null) {
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_controllers.remove(controller);
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} else {
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controller = MultiPageController(entry);
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}
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_controllers.insert(0, controller);
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while (_controllers.length > maxControllerCount) {
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_controllers.removeLast().dispose();
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}
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return controller;
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}
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MultiPageController? getController(AvesEntry entry) {
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return _controllers.firstWhereOrNull((c) => c.entry.uri == entry.uri && c.entry.pageId == entry.pageId);
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}
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}
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