mirrored_repositories/startup-name-generator/startup_namer
import 'package:flutter/material.dart';
import 'package:english_words/english_words.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Startup Name Generator',
      theme: new ThemeData(
        primaryColor: Colors.lightBlue,
      ),
      home: new RandomWords(),
      );
  }
}

class RandomWordsState extends State<RandomWords>{

  final _suggestions = <WordPair>[];
  final _biggerFont = const TextStyle(fontSize: 18);
  final _saved = new Set<WordPair>();

  void _pushSaved(){
    Navigator.of(context).push(
      new MaterialPageRoute<void>(
        builder: (BuildContext context) {
          final Iterable<ListTile> tiles = _saved.map((WordPair pair){
            return new ListTile(
              title: new Text(
                pair.asPascalCase,
                style: _biggerFont,
              ),
            );
          },
          );
          final List<Widget> divided = ListTile.divideTiles(
            context: context,
            tiles: tiles,
          ).toList();

          return new Scaffold(
            appBar: new AppBar(
              title: const Text('Saved Suggestions'),
            ),
            body: new ListView(children: divided),
          );
        },
      ),
    );
  }

  Widget _buildSuggestions(){
    return ListView.builder(
      padding: const EdgeInsets.all(16.0),
      itemBuilder: (context, i) {
        if (i.isOdd) return Divider();
        final index = i~/2;
        if (index >= _suggestions.length){
          _suggestions.addAll(generateWordPairs().take(10));
        }
        return _buildRow(_suggestions[index]);
      }
    );
  }

  Widget _buildRow(WordPair pair) {

    final bool alreadySaved = _saved.contains(pair);

    return ListTile(
      title: Text(
        pair.asPascalCase,
        style: _biggerFont,
      ),
      trailing: new Icon(
        alreadySaved ? Icons.favorite : Icons.favorite_border,
        color: alreadySaved ? Colors.red : null,
      ) ,
      onTap: () {
        setState(() {
          if (alreadySaved){
            _saved.remove(pair);
          } else {
            _saved.add(pair);
          }
        });
      },
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: new Text(
          'Startup Name Generator',
          style: TextStyle(color: Colors.white),
        ),
        actions: <Widget>[
          new IconButton(
              icon: const Icon(Icons.list),
              onPressed: _pushSaved,
              color: Colors.white,
            alignment: Alignment.center,
          ),
        ],
      ),
      body: _buildSuggestions(),
    );
  }
}

class RandomWords extends StatefulWidget {
  @override
  RandomWordsState createState() => new RandomWordsState();
}