mirror of
https://github.com/cake-tech/cake_wallet.git
synced 2024-11-01 09:57:46 +00:00
409 lines
14 KiB
Dart
409 lines
14 KiB
Dart
import 'package:flutter/cupertino.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:cake_wallet/palette.dart';
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import 'package:cake_wallet/core/seed_validator.dart';
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import 'package:cake_wallet/src/widgets/primary_button.dart';
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import 'package:cake_wallet/src/domain/common/mnemonic_item.dart';
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import 'package:cake_wallet/generated/i18n.dart';
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class SeedWidget extends StatefulWidget {
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SeedWidget(
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{Key key,
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this.maxLength,
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this.onMnemonicChange,
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this.onFinish,
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this.validator})
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: super(key: key);
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final int maxLength;
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final Function(List<MnemonicItem>) onMnemonicChange;
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final Function() onFinish;
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final SeedValidator validator;
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@override
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SeedWidgetState createState() => SeedWidgetState(maxLength: maxLength);
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}
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class SeedWidgetState extends State<SeedWidget> {
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SeedWidgetState({this.maxLength});
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List<MnemonicItem> items = <MnemonicItem>[];
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final int maxLength;
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final _seedController = TextEditingController();
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final _seedTextFieldKey = GlobalKey();
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MnemonicItem selectedItem;
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bool isValid;
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String errorMessage;
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List<MnemonicItem> currentMnemonics;
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bool isCurrentMnemonicValid;
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String _errorMessage;
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@override
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void initState() {
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super.initState();
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isValid = false;
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isCurrentMnemonicValid = false;
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_seedController
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.addListener(() => changeCurrentMnemonic(_seedController.text));
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}
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void addMnemonic(String text) {
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setState(() => items.add(MnemonicItem(text: text.trim().toLowerCase())));
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_seedController.text = '';
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if (widget.onMnemonicChange != null) {
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widget.onMnemonicChange(items);
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}
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}
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void mnemonicFromText(String text) {
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final splitted = text.split(' ');
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if (splitted.length >= 2) {
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for (final text in splitted) {
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if (text == ' ' || text.isEmpty) {
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continue;
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}
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if (selectedItem != null) {
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editTextOfSelectedMnemonic(text);
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} else {
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addMnemonic(text);
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}
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}
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}
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}
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void selectMnemonic(MnemonicItem item) {
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setState(() {
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selectedItem = item;
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currentMnemonics = [item];
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_seedController
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..text = item.text
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..selection = TextSelection.collapsed(offset: item.text.length);
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});
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}
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void onMnemonicTap(MnemonicItem item) {
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if (selectedItem == item) {
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setState(() => selectedItem = null);
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_seedController.text = '';
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return;
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}
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selectMnemonic(item);
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}
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void editTextOfSelectedMnemonic(String text) {
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setState(() => selectedItem.changeText(text));
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selectedItem = null;
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_seedController.text = '';
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if (widget.onMnemonicChange != null) {
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widget.onMnemonicChange(items);
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}
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}
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void clear() {
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setState(() {
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items = [];
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selectedItem = null;
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_seedController.text = '';
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if (widget.onMnemonicChange != null) {
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widget.onMnemonicChange(items);
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}
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});
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}
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void invalidate() => setState(() => isValid = false);
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void validated() => setState(() => isValid = true);
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void setErrorMessage(String errorMessage) =>
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setState(() => this.errorMessage = errorMessage);
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void replaceText(String text) {
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setState(() => items = []);
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mnemonicFromText(text);
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}
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void changeCurrentMnemonic(String text) {
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setState(() {
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final trimmedText = text.trim();
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final splitted = trimmedText.split(' ');
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_errorMessage = null;
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if (text == null) {
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currentMnemonics = [];
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isCurrentMnemonicValid = false;
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return;
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}
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currentMnemonics =
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splitted.map((text) => MnemonicItem(text: text)).toList();
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var isValid = true;
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for (final word in currentMnemonics) {
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isValid = widget.validator.isValid(word);
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if (!isValid) {
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break;
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}
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}
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isCurrentMnemonicValid = isValid;
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});
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}
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void saveCurrentMnemonicToItems() {
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setState(() {
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if (selectedItem != null) {
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selectedItem.changeText(currentMnemonics.first.text.trim());
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selectedItem = null;
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} else {
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items.addAll(currentMnemonics);
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}
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currentMnemonics = [];
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_seedController.text = '';
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});
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}
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void showErrorIfExist() {
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setState(() => _errorMessage =
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!isCurrentMnemonicValid ? S.current.incorrect_seed : null);
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}
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bool isSeedValid() {
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bool isValid;
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for (final item in items) {
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isValid = widget.validator.isValid(item);
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if (!isValid) {
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break;
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}
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}
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return isValid;
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}
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@override
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Widget build(BuildContext context) {
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return Container(
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child: Column(children: [
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Flexible(
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fit: FlexFit.tight,
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flex: 1,
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child: Container(
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width: double.infinity,
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height: double.infinity,
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padding: EdgeInsets.all(24),
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decoration: BoxDecoration(
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borderRadius: BorderRadius.only(
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bottomLeft: Radius.circular(24),
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bottomRight: Radius.circular(24)),
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color: Theme.of(context).accentTextTheme.title.backgroundColor),
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child: SingleChildScrollView(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.start,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: <Widget>[
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Text(
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S.of(context).restore_active_seed,
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style: TextStyle(
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fontSize: 14,
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color:
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Theme.of(context).primaryTextTheme.caption.color),
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),
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Padding(
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padding: EdgeInsets.only(top: 5),
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child: Wrap(
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children: items.map((item) {
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final isValid = widget.validator.isValid(item);
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final isSelected = selectedItem == item;
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return InkWell(
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onTap: () => onMnemonicTap(item),
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child: Container(
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decoration: BoxDecoration(
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color: isValid
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? Colors.transparent
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: Palette.red),
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margin: EdgeInsets.only(right: 7, bottom: 8),
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child: Text(
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item.toString(),
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style: TextStyle(
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color: isValid
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? Theme.of(context)
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.primaryTextTheme
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.title
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.color
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: Theme.of(context)
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.primaryTextTheme
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.caption
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.color,
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fontSize: 16,
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fontWeight: isSelected
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? FontWeight.w900
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: FontWeight.w400,
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decoration: isSelected
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? TextDecoration.underline
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: TextDecoration.none),
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)),
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);
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}).toList(),
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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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Flexible(
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fit: FlexFit.tight,
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flex: 2,
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child: Padding(
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padding:
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EdgeInsets.only(left: 24, top: 48, right: 24, bottom: 24),
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child: Column(
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mainAxisAlignment: MainAxisAlignment.start,
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crossAxisAlignment: CrossAxisAlignment.center,
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children: <Widget>[
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Text(
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S.of(context).restore_new_seed,
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style: TextStyle(
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fontSize: 18,
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fontWeight: FontWeight.bold,
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color:
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Theme.of(context).primaryTextTheme.title.color),
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),
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Padding(
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padding: EdgeInsets.only(top: 24),
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child: TextFormField(
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key: _seedTextFieldKey,
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onFieldSubmitted: (text) => isCurrentMnemonicValid
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? saveCurrentMnemonicToItems()
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: null,
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style: TextStyle(
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fontSize: 16.0,
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color:
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Theme.of(context).primaryTextTheme.title.color),
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controller: _seedController,
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textInputAction: TextInputAction.done,
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decoration: InputDecoration(
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suffixIcon: GestureDetector(
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behavior: HitTestBehavior.opaque,
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child: ConstrainedBox(
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constraints: BoxConstraints(maxWidth: 145),
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child: Row(
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mainAxisAlignment: MainAxisAlignment.end,
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children: <Widget>[
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Text('${items.length}/$maxLength',
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style: TextStyle(
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color: Theme.of(context)
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.primaryTextTheme
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.caption
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.color,
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fontSize: 14)),
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SizedBox(width: 10),
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InkWell(
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onTap: () async =>
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Clipboard.getData('text/plain').then(
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(clipboard) =>
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replaceText(clipboard.text)),
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child: Container(
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height: 35,
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padding: EdgeInsets.all(7),
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decoration: BoxDecoration(
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color: Theme.of(context)
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.accentTextTheme
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.title
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.backgroundColor,
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borderRadius:
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BorderRadius.circular(10.0)),
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child: Text(
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S.of(context).paste,
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style: TextStyle(
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color: Theme.of(context)
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.primaryTextTheme
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.title
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.color),
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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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hintStyle: TextStyle(
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color: Theme.of(context)
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.primaryTextTheme
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.caption
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.color,
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fontSize: 16),
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hintText:
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S.of(context).restore_from_seed_placeholder,
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errorText: _errorMessage,
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focusedBorder: UnderlineInputBorder(
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borderSide: BorderSide(
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color: Theme.of(context).dividerColor,
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width: 1.0)),
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enabledBorder: UnderlineInputBorder(
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borderSide: BorderSide(
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color: Theme.of(context).dividerColor,
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width: 1.0))),
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enableInteractiveSelection: false,
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),
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)
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]),
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)),
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Padding(
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padding: EdgeInsets.only(left: 24, right: 24, bottom: 24),
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child: Row(
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children: <Widget>[
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Flexible(
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child: Padding(
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padding: EdgeInsets.only(right: 8),
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child: PrimaryButton(
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onPressed: clear,
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text: S.of(context).clear,
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color: Colors.red,
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textColor: Colors.white,
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isDisabled: items.isEmpty,
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),
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)),
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Flexible(
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child: Padding(
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padding: EdgeInsets.only(left: 8),
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child: (selectedItem == null && items.length == maxLength)
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? PrimaryButton(
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text: S.of(context).restore_next,
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isDisabled: !isSeedValid(),
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onPressed: () => widget.onFinish != null
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? widget.onFinish()
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: null,
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color: Colors.green,
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textColor: Colors.white)
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: PrimaryButton(
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text: selectedItem != null
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? S.of(context).save
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: S.of(context).add_new_word,
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onPressed: () => isCurrentMnemonicValid
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? saveCurrentMnemonicToItems()
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: null,
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onDisabledPressed: () => showErrorIfExist(),
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isDisabled: !isCurrentMnemonicValid,
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color: Colors.green,
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textColor: Colors.white),
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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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