mirrored_repositories/apps-with-flutter/propornome
import 'package:flutter/material.dart';
import 'package:english_words/english_words.dart';

void main() => runApp(new ProporNome());

class ProporNome extends StatelessWidget{
  
  @override
  Widget build(BuildContext context){

    return new MaterialApp(
      title: 'Startup Gerador de Nome',
      theme: new ThemeData(
        primaryColor: Colors.red,
      ),
      home: new PalavraAleatoria()
    );
  }
}

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

class RandomWordsState extends State<PalavraAleatoria>{
  final _suggestions = <WordPair>[];
  final _biggerFont = const TextStyle(fontSize: 18.0);
  final _saved = new Set<WordPair>();

  Widget _buildSuggestions() {
    return new ListView.builder(
      padding: const EdgeInsets.all(16.0),
      itemBuilder: (context, i) {
        if (i.isOdd) {
          return new Divider();
        }

        final index = i ~/ 2;
        if (index >= _suggestions.length){
          _suggestions.addAll(generateWordPairs().take(10));
        }

        return _buildRow(_suggestions[index]);
      }
    );
  }

  Widget _buildRow(WordPair pair) {
    final alreadySaved = _saved.contains(pair);

    return new ListTile(
      title: new ListTile(
        title: new 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);
            }
          });
        },
      ),
    );
  }

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

          return new Scaffold(
            appBar: new AppBar(
              title: new Text('Sugestões salvas'),
            ),
            body: new ListView(children: divided),
          );
        }
      )
    );
  }

  @override
  Widget build (BuildContext context){
    return new Scaffold(
      appBar: new AppBar(
        title: new Text('Sugestoes de nome'),
        actions: <Widget>[
          new IconButton(
            icon: new Icon(Icons.list), onPressed: _pushSaved),
        ],
      ),
      body: _buildSuggestions(),
    );
  }
}
