114 lines
3.7 KiB
Dart
114 lines
3.7 KiB
Dart
import 'dart:async';
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import 'package:flutter/material.dart';
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import 'package:provider/provider.dart';
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import 'package:vikunja_app/components/AddDialog.dart';
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import 'package:vikunja_app/components/TaskTile.dart';
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import 'package:vikunja_app/models/list.dart';
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import 'package:vikunja_app/pages/list/list_edit.dart';
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import 'package:vikunja_app/stores/list_store.dart';
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class ListPage extends StatefulWidget {
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final TaskList taskList;
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ListPage({this.taskList}) : super(key: Key(taskList.id.toString()));
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@override
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_ListPageState createState() => _ListPageState();
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}
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class _ListPageState extends State<ListPage> {
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TaskList _list;
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int _currentPage = 1;
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@override
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void initState() {
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_list = TaskList(id: widget.taskList.id, title: widget.taskList.title);
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Future.microtask(() => _loadList());
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super.initState();
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}
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@override
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Widget build(BuildContext context) {
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final taskState = Provider.of<ListProvider>(context);
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return Scaffold(
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appBar: AppBar(
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title: new Text(_list.title),
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actions: <Widget>[
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IconButton(
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icon: Icon(Icons.edit),
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onPressed: () => Navigator.push(
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context,
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MaterialPageRoute(
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builder: (context) => ListEditPage(
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list: _list,
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))))
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],
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),
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body: !taskState.isLoading
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? RefreshIndicator(
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child: taskState.tasks.length > 0
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? ListView.builder(
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padding: EdgeInsets.symmetric(vertical: 8.0),
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itemBuilder: (context, i) {
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if (i.isOdd) return Divider();
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final index = i ~/ 2;
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// This handles the case if there are no more elements in the list left which can be provided by the api
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if (taskState.maxPages == _currentPage &&
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index == taskState.tasks.length - 1) return null;
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if (index >= taskState.tasks.length &&
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_currentPage < taskState.maxPages) {
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_currentPage++;
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_loadTasksForPage(_currentPage);
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}
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return index < taskState.tasks.length
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? TaskTile(
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task: taskState.tasks[index],
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)
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: null;
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})
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: Center(child: Text('This list is empty.')),
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onRefresh: _loadList,
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)
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: Center(child: CircularProgressIndicator()),
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floatingActionButton: Builder(
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builder: (context) => FloatingActionButton(
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onPressed: () => _addItemDialog(context), child: Icon(Icons.add)),
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));
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}
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Future<void> _loadList() async {
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_loadTasksForPage(1);
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}
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void _loadTasksForPage(int page) {
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Provider.of<ListProvider>(context, listen: false).loadTasks(
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context: context,
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listId: _list.id,
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page: page,
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);
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}
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_addItemDialog(BuildContext context) {
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showDialog(
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context: context,
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builder: (_) => AddDialog(
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onAdd: (title) => _addItem(title, context),
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decoration: new InputDecoration(
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labelText: 'Task Name', hintText: 'eg. Milk')));
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}
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_addItem(String title, BuildContext context) {
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Provider.of<ListProvider>(context, listen: false)
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.addTask(context: context, title: title, listId: _list.id)
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.then((_) {
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Scaffold.of(context).showSnackBar(SnackBar(
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content: Text('The task was added successfully!'),
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));
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});
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}
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}
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