Dat PHAM HOANG
104 lines
2.9 KiB
Dart
104 lines
2.9 KiB
Dart
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import 'dart:collection';
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import 'package:equatable/equatable.dart';
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import 'package:jmap_dart_client/jmap/mail/mailbox/mailbox.dart';
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import 'package:model/mailbox/expand_mode.dart';
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import 'package:model/mailbox/select_mode.dart';
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import 'mailbox_node.dart';
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typedef NodeQuery = bool Function(MailboxNode node);
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class MailboxTree with EquatableMixin {
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MailboxNode root;
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MailboxTree(this.root);
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MailboxNode? findNode(NodeQuery nodeQuery) {
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var result;
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final queue = ListQueue<MailboxNode>();
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queue.addLast(root);
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while (queue.isNotEmpty) {
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final currentNode = queue.removeFirst();
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if (nodeQuery(currentNode)) {
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result = currentNode;
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break;
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}
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currentNode.childrenItems?.forEach((child) {
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queue.addLast(child);
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});
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}
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return result;
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}
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List<MailboxNode> findNodes(NodeQuery nodeQuery) {
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final listResult = List<MailboxNode>.empty(growable: true);
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final queue = ListQueue<MailboxNode>();
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queue.addLast(root);
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while (queue.isNotEmpty) {
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final currentNode = queue.removeFirst();
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if (nodeQuery(currentNode)) {
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listResult.add(currentNode);
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}
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currentNode.childrenItems?.forEach((child) {
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queue.addLast(child);
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});
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}
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return listResult;
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}
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MailboxNode? updateExpandedNode(MailboxNode selectedNode, ExpandMode newExpandMode) {
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var matchedNode = findNode((node) => node.item.id == selectedNode.item.id);
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matchedNode?.expandMode = newExpandMode;
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return matchedNode;
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}
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MailboxNode? updateSelectedNode(MailboxNode selectedNode, SelectMode newSelectMode) {
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var matchedNode = findNode((node) => node.item.id == selectedNode.item.id);
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matchedNode?.selectMode = newSelectMode;
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return matchedNode;
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}
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void updateNodesUIMode(SelectMode? selectMode, ExpandMode? expandMode) {
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if (selectMode == null && expandMode == null) {
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return;
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}
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final queue = ListQueue<MailboxNode>();
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queue.addLast(root);
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while (queue.isNotEmpty) {
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final currentNode = queue.removeFirst();
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if (expandMode != null) {
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currentNode.expandMode = expandMode;
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}
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if (selectMode != null) {
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currentNode.selectMode = selectMode;
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}
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currentNode.childrenItems?.forEach((child) {
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queue.addLast(child);
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});
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}
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}
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String? getNodePath(MailboxId mailboxId) {
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final matchedNode = findNode((node) => node.item.id == mailboxId);
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if (matchedNode == null) {
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return null;
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}
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String path = '${matchedNode.item.name?.name}';
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var parentId = matchedNode.item.parentId;
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while(parentId != null) {
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var parentNode = findNode((node) => node.item.id == parentId);
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if (parentNode == null) {
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break;
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}
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path = '${parentNode.item.name?.name}/$path';
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parentId = parentNode.item.parentId;
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}
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return path;
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}
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@override
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List<Object?> get props => [root];
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} |