mirror of
https://github.com/foss42/apidash.git
synced 2025-06-04 09:16:02 +08:00
412 lines
14 KiB
Dart
412 lines
14 KiB
Dart
import 'dart:convert';
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import 'package:flutter/material.dart';
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import 'package:google_fonts/google_fonts.dart';
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import 'package:http/http.dart' as http;
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import 'package:json_explorer/json_explorer.dart';
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import 'package:provider/provider.dart';
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import 'package:scrollable_positioned_list/scrollable_positioned_list.dart';
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import 'package:url_launcher/url_launcher_string.dart';
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void main() => runApp(const MyApp());
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class MyApp extends StatelessWidget {
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const MyApp({Key? key}) : super(key: key);
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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title: 'Json Explorer',
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theme: ThemeData(
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primarySwatch: Colors.blue,
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),
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home: const MyHomePage(),
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);
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}
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}
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class MyHomePage extends StatelessWidget {
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const MyHomePage({Key? key}) : super(key: key);
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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title: const Text('Test Json Explorer'),
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),
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body: ListView(
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padding: const EdgeInsets.all(16),
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children: [
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Text(
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'Small JSON',
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style: Theme.of(context).textTheme.bodyMedium,
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),
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const _OpenJsonButton(
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title: 'ISS current location',
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url: 'http://api.open-notify.org/iss-now.json',
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padding: EdgeInsets.symmetric(vertical: 8.0),
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),
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const _OpenJsonButton(
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title: 'Country List',
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url: 'https://api.foss42.com/country/codes',
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padding: EdgeInsets.symmetric(vertical: 8.0),
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),
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Text(
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'Medium JSON',
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style: Theme.of(context).textTheme.bodyMedium,
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),
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const _OpenJsonButton(
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title: 'Nobel prizes country',
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url: 'http://api.nobelprize.org/v1/country.json',
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padding: EdgeInsets.symmetric(vertical: 8.0),
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),
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const _OpenJsonButton(
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title: 'Australia ABC Local Stations',
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url:
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'https://data.gov.au/geoserver/abc-local-stations/wfs?request=GetFeature&typeName=ckan_d534c0e9_a9bf_487b_ac8f_b7877a09d162&outputFormat=json',
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),
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Text(
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'Large JSON',
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style: Theme.of(context).textTheme.bodyMedium,
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),
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const _OpenJsonButton(
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title: 'Pokémon',
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url: 'https://pokeapi.co/api/v2/pokemon/?offset=0&limit=2000',
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padding: EdgeInsets.symmetric(vertical: 8.0),
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),
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const _OpenJsonButton(
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title: 'Earth Meteorite Landings',
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url: 'https://data.nasa.gov/resource/y77d-th95.json',
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),
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const _OpenJsonButton(
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title: 'Reddit r/all',
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url: 'https://www.reddit.com/r/all.json',
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),
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Text(
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'Exploding JSON',
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style: Theme.of(context).textTheme.bodyMedium,
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),
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const _OpenJsonButton(
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title: '25MB GitHub Json',
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url:
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'https://raw.githubusercontent.com/json-iterator/test-data/master/large-file.json',
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padding: EdgeInsets.only(top: 8.0, bottom: 32.0),
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),
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Text(
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'More datasets at https://awesomeopensource.com/project/jdorfman/awesome-json-datasets',
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style: Theme.of(context).textTheme.bodySmall,
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),
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],
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),
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);
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}
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}
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class JsonExplorerPage extends StatefulWidget {
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final String jsonUrl;
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final String title;
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const JsonExplorerPage({
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Key? key,
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required this.jsonUrl,
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required this.title,
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}) : super(key: key);
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@override
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_JsonExplorerPageState createState() => _JsonExplorerPageState();
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}
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class _JsonExplorerPageState extends State<JsonExplorerPage> {
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final searchController = TextEditingController();
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final itemScrollController = ItemScrollController();
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final JsonExplorerStore store = JsonExplorerStore();
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@override
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void initState() {
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_loadJsonDataFrom(widget.jsonUrl);
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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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return Scaffold(
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appBar: AppBar(
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title: Text(widget.title),
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),
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body: SafeArea(
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minimum: const EdgeInsets.all(16),
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child: ChangeNotifierProvider.value(
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value: store,
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child: Consumer<JsonExplorerStore>(
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builder: (context, state, child) => Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Row(
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children: [
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Expanded(
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child: TextField(
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controller: searchController,
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/// Delegates the search to [JsonExplorerStore] when
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/// the text field changes.
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onChanged: (term) => state.search(term),
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decoration: const InputDecoration(
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hintText: 'Search',
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),
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),
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),
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const SizedBox(
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width: 8,
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),
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if (state.searchResults.isNotEmpty)
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Text(_searchFocusText()),
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if (state.searchResults.isNotEmpty)
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IconButton(
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onPressed: () {
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store.focusPreviousSearchResult();
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_scrollToSearchMatch();
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},
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icon: const Icon(Icons.arrow_drop_up),
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),
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if (state.searchResults.isNotEmpty)
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IconButton(
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onPressed: () {
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store.focusNextSearchResult();
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_scrollToSearchMatch();
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},
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icon: const Icon(Icons.arrow_drop_down),
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),
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],
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),
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const SizedBox(
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height: 16.0,
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),
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Row(
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children: [
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TextButton(
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onPressed:
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state.areAllExpanded() ? null : state.expandAll,
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child: const Text('Expand All'),
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),
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const SizedBox(
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width: 8.0,
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),
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TextButton(
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onPressed:
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state.areAllCollapsed() ? null : state.collapseAll,
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child: const Text('Collapse All'),
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),
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],
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),
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const SizedBox(
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height: 16.0,
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),
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Expanded(
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child: JsonExplorer(
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nodes: state.displayNodes,
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itemScrollController: itemScrollController,
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itemSpacing: 4,
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maxRootNodeWidth: 200,
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/// Builds a widget after each root node displaying the
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/// number of children nodes that it has. Displays `{x}`
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/// if it is a class or `[x]` in case of arrays.
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rootInformationBuilder: (context, node) => DecoratedBox(
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decoration: const BoxDecoration(
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color: Color(0x80E1E1E1),
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borderRadius: BorderRadius.all(Radius.circular(2)),
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),
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child: Padding(
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padding: const EdgeInsets.symmetric(
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horizontal: 4,
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vertical: 2,
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),
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child: Text(
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node.isClass
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? '{${node.childrenCount}}'
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: '[${node.childrenCount}]',
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style: GoogleFonts.inconsolata(
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fontSize: 12,
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color: const Color(0xFF6F6F6F),
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),
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),
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),
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),
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/// Build an animated collapse/expand indicator. Implicitly
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/// animates the indicator when
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/// [NodeViewModelState.isCollapsed] changes.
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collapsableToggleBuilder: (context, node) =>
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AnimatedRotation(
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turns: node.isCollapsed ? -0.25 : 0,
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duration: const Duration(milliseconds: 300),
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child: const Icon(Icons.arrow_drop_down),
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),
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/// Builds a trailing widget that copies the node key: value
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///
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/// Uses [NodeViewModelState.isFocused] to display the
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/// widget only in focused widgets.
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trailingBuilder: (context, node) => node.isFocused
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? IconButton(
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padding: EdgeInsets.zero,
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constraints: const BoxConstraints(maxHeight: 18),
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icon: const Icon(
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Icons.copy,
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size: 18,
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),
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onPressed: () => _printNode(node),
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)
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: const SizedBox(),
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/// Creates a custom format for classes and array names.
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rootNameFormatter: (dynamic name) => '$name',
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/// Dynamically changes the property value style and
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/// interaction when an URL is detected.
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valueStyleBuilder: (dynamic value, style) {
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final isUrl = _valueIsUrl(value);
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return PropertyOverrides(
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style: isUrl
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? style.copyWith(
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decoration: TextDecoration.underline,
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)
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: style,
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onTap: isUrl ? () => _launchUrl(value as String) : null,
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);
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},
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/// Theme definitions of the json explorer
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theme: JsonExplorerTheme(
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rootKeyTextStyle: GoogleFonts.inconsolata(
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color: Colors.black,
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fontWeight: FontWeight.bold,
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fontSize: 16,
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),
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propertyKeyTextStyle: GoogleFonts.inconsolata(
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color: Colors.black.withOpacity(0.7),
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fontWeight: FontWeight.bold,
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fontSize: 16,
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),
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keySearchHighlightTextStyle: GoogleFonts.inconsolata(
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color: Colors.black,
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backgroundColor: const Color(0xFFFFEDAD),
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fontWeight: FontWeight.bold,
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fontSize: 16,
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),
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focusedKeySearchHighlightTextStyle:
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GoogleFonts.inconsolata(
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color: Colors.black,
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backgroundColor: const Color(0xFFF29D0B),
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fontWeight: FontWeight.bold,
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fontSize: 16,
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),
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valueTextStyle: GoogleFonts.inconsolata(
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color: const Color(0xFFCA442C),
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fontSize: 16,
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),
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valueSearchHighlightTextStyle: GoogleFonts.inconsolata(
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color: const Color(0xFFCA442C),
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backgroundColor: const Color(0xFFFFEDAD),
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fontWeight: FontWeight.bold,
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fontSize: 16,
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),
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focusedValueSearchHighlightTextStyle:
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GoogleFonts.inconsolata(
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color: Colors.black,
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backgroundColor: const Color(0xFFF29D0B),
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fontWeight: FontWeight.bold,
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fontSize: 16,
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),
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indentationLineColor: const Color(0xFFE1E1E1),
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highlightColor: const Color(0xFFF1F1F1),
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),
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),
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),
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],
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),
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),
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),
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),
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);
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}
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String _searchFocusText() =>
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'${store.focusedSearchResultIndex + 1} of ${store.searchResults.length}';
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Future _loadJsonDataFrom(String url) async {
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debugPrint('Calling Json API');
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final data = await http.read(Uri.parse(url));
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debugPrint('Done!');
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final dynamic decoded = json.decode(data);
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store.buildNodes(decoded, areAllCollapsed: true);
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}
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void _printNode(NodeViewModelState node) {
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if (node.isRoot) {
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final value = node.isClass ? 'class' : 'array';
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debugPrint('${node.key}: $value');
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return;
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}
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debugPrint('${node.key}: ${node.value}');
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}
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void _scrollToSearchMatch() {
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final index = store.displayNodes.indexOf(store.focusedSearchResult.node);
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if (index != -1) {
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itemScrollController.scrollTo(
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index: index,
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duration: const Duration(milliseconds: 300),
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curve: Curves.easeInOutCubic,
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);
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}
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}
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bool _valueIsUrl(dynamic value) {
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if (value is String) {
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return Uri.tryParse(value)?.hasAbsolutePath ?? false;
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}
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return false;
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}
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Future _launchUrl(String url) {
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return launchUrlString(url);
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}
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@override
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void dispose() {
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searchController.dispose();
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super.dispose();
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}
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}
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/// A button that navigates to the data explorer page on pressed.
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class _OpenJsonButton extends StatelessWidget {
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final String url;
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final String title;
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final EdgeInsets padding;
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const _OpenJsonButton({
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Key? key,
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required this.url,
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required this.title,
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this.padding = const EdgeInsets.only(bottom: 8.0),
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}) : super(key: key);
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@override
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Widget build(BuildContext context) => Padding(
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padding: padding,
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child: ElevatedButton(
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child: Text(title),
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onPressed: () => Navigator.of(context).push<MaterialPageRoute>(
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MaterialPageRoute(
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builder: (ctx) => JsonExplorerPage(
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jsonUrl: url,
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title: title,
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),
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),
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),
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),
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);
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}
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