cake_wallet/lib/src/screens/seed/wallet_seed_page.dart

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:provider/provider.dart';
import 'package:esys_flutter_share/esys_flutter_share.dart';
import 'package:flutter_mobx/flutter_mobx.dart';
import 'package:cake_wallet/generated/i18n.dart';
import 'package:cake_wallet/src/widgets/primary_button.dart';
import 'package:cake_wallet/src/screens/base_page.dart';
import 'package:cake_wallet/themes.dart';
import 'package:cake_wallet/theme_changer.dart';
import 'package:cake_wallet/view_model/wallet_seed_view_model.dart';

class WalletSeedPage extends BasePage {
  WalletSeedPage(this.walletSeedViewModel, {this.onCloseCallback});

  static final imageLight = Image.asset('assets/images/crypto_lock_light.png');
  static final imageDark = Image.asset('assets/images/crypto_lock.png');

  @override
  String get title => S.current.seed_title;

  final VoidCallback onCloseCallback;
  final WalletSeedViewModel walletSeedViewModel;

  @override
  void onClose(BuildContext context) =>
      onCloseCallback != null ? onCloseCallback() : Navigator.of(context).pop();

  @override
  Widget leading(BuildContext context) =>
      onCloseCallback != null ? Offstage() : super.leading(context);

  @override
  Widget trailing(BuildContext context) {
    return onCloseCallback != null
        ? GestureDetector(
            onTap: () => onClose(context),
            child: Container(
              width: 100,
              height: 42,
              alignment: Alignment.center,
              margin: EdgeInsets.only(left: 10),
              decoration: BoxDecoration(
                  borderRadius: BorderRadius.all(Radius.circular(16)),
                  color: Theme.of(context).accentTextTheme.title.color),
              child: Text(
                S.of(context).seed_language_next,
                style: TextStyle(
                    fontSize: 14,
                    fontWeight: FontWeight.w600,
                    color: Colors.blue),
              ),
            ),
          )
        : Offstage();
  }

  @override
  Widget body(BuildContext context) {
    final _themeChanger = Provider.of<ThemeChanger>(context);
    final image =
        _themeChanger.getTheme() == Themes.darkTheme ? imageDark : imageLight;

    return Container(
        padding: EdgeInsets.all(24),
        child: Column(
          children: <Widget>[
            Flexible(
                flex: 2,
                child: AspectRatio(
                    aspectRatio: 1,
                    child: FittedBox(child: image, fit: BoxFit.fill))),
            Flexible(
                flex: 3,
                child: Column(
                  mainAxisAlignment: MainAxisAlignment.spaceBetween,
                  children: <Widget>[
                    Padding(
                      padding: EdgeInsets.only(top: 33),
                      child: Observer(builder: (_) {
                        return Column(
                          crossAxisAlignment: CrossAxisAlignment.center,
                          children: <Widget>[
                            Text(
                              walletSeedViewModel.name,
                              style: TextStyle(
                                  fontSize: 20,
                                  fontWeight: FontWeight.bold,
                                  color: Theme.of(context)
                                      .primaryTextTheme
                                      .title
                                      .color),
                            ),
                            Padding(
                              padding: EdgeInsets.only(top: 20),
                              child: Text(
                                walletSeedViewModel.seed,
                                textAlign: TextAlign.center,
                                style: TextStyle(
                                    fontSize: 14,
                                    color: Theme.of(context)
                                        .primaryTextTheme
                                        .caption
                                        .color),
                              ),
                            )
                          ],
                        );
                      }),
                    ),
                    Row(
                      mainAxisSize: MainAxisSize.max,
                      children: <Widget>[
                        Flexible(
                            child: Container(
                          padding: EdgeInsets.only(right: 8.0),
                          child: PrimaryButton(
                              onPressed: () => Share.text(
                                  S.of(context).seed_share,
                                  walletSeedViewModel.seed,
                                  'text/plain'),
                              text: S.of(context).save,
                              color: Colors.green,
                              textColor: Colors.white),
                        )),
                        Flexible(
                            child: Container(
                          padding: EdgeInsets.only(left: 8.0),
                          child: Builder(
                              builder: (context) => PrimaryButton(
                                  onPressed: () {
                                    Clipboard.setData(ClipboardData(
                                        text: walletSeedViewModel.seed));
                                    Scaffold.of(context).showSnackBar(
                                      SnackBar(
                                        content: Text(
                                            S.of(context).copied_to_clipboard),
                                        backgroundColor: Colors.green,
                                        duration: Duration(milliseconds: 1500),
                                      ),
                                    );
                                  },
                                  text: S.of(context).copy,
                                  color: Colors.blue,
                                  textColor: Colors.white)),
                        ))
                      ],
                    )
                  ],
                ))
          ],
        ));
  }
}