Changed way for validation of seed phrase. Added multi words to text field on restore from seed screen.

lib/generated/i18n.dart

@@ -289,6 +289,7 @@ class S implements WidgetsLocalizations {
   String get paste => "Paste";
   String get restore_from_seed_placeholder => "Please enter or paste your seed here";
   String get add_new_word => "Add new word";
+  String get incorrect_seed => 'The text entered is not valid.';
 }
 
 class $de extends S {
@@ -833,6 +834,8 @@ class $de extends S {
   String get restore_from_seed_placeholder => "Bitte geben Sie hier Ihren Code ein";
   @override
   String get add_new_word => "Neues Wort hinzufügen";
+  @override
+  String get incorrect_seed => 'Der eingegebene Text ist ungültig.';
 }
 
 class $hi extends S {
@@ -1377,6 +1380,8 @@ class $hi extends S {
   String get restore_from_seed_placeholder => "कृपया अपना कोड वाक्यांश यहां दर्ज करें या पेस्ट करें";
   @override
   String get add_new_word => "नया शब्द जोड़ें";
+  @override
+  String get incorrect_seed => 'दर्ज किया गया पाठ मान्य नहीं है।';
 }
 
 class $ru extends S {
@@ -1921,6 +1926,8 @@ class $ru extends S {
   String get restore_from_seed_placeholder => "Введите или вставте код фразу вашего кошелька";
   @override
   String get add_new_word => "Добавить новое слово";
+  @override
+  String get incorrect_seed => 'Введенный текст некорректный.';
 }
 
 class $ko extends S {
@@ -2465,6 +2472,8 @@ class $ko extends S {
   String get restore_from_seed_placeholder => "여기에 코드 문구를 입력하거나 붙여 넣으십시오.";
   @override
   String get add_new_word => "새로운 단어 추가";
+  @override
+  String get incorrect_seed => '입력하신 텍스트가 유효하지 않습니다.';
 }
 
 class $pt extends S {
@@ -3009,6 +3018,8 @@ class $pt extends S {
   String get restore_from_seed_placeholder => "Digite ou cole sua frase de código aqui";
   @override
   String get add_new_word => "Adicionar nova palavra";
+  @override
+  String get incorrect_seed => 'O texto digitado não é válido.';
 }
 
 class $ja extends S {
@@ -3553,6 +3564,8 @@ class $ja extends S {
   String get restore_from_seed_placeholder => "ここにコードフレーズを入力または貼り付けてください";
   @override
   String get add_new_word => "新しい単語を追加";
+  @override
+  String get incorrect_seed => '入力されたテキストは無効です。';
 }
 
 class $en extends S {
@@ -4101,6 +4114,8 @@ class $pl extends S {
   String get restore_from_seed_placeholder => "Wpisz lub wklej tutaj swoją frazę kodową";
   @override
   String get add_new_word => "Dodaj nowe słowo";
+  @override
+  String get incorrect_seed => 'Wprowadzony tekst jest nieprawidłowy.';
 }
 
 class $es extends S {
@@ -4645,6 +4660,8 @@ class $es extends S {
   String get restore_from_seed_placeholder => "Ingrese o pegue su frase de código aquí";
   @override
   String get add_new_word => "Agregar palabra nueva";
+  @override
+  String get incorrect_seed => 'El texto ingresado no es válido.';
 }
 
 class $nl extends S {
@@ -5189,6 +5206,8 @@ class $nl extends S {
   String get restore_from_seed_placeholder => "Voer hier uw codefrase in of plak deze";
   @override
   String get add_new_word => "Nieuw woord toevoegen";
+  @override
+  String get incorrect_seed => 'De ingevoerde tekst is niet geldig.';
 }
 
 class $zh extends S {
@@ -5733,6 +5752,8 @@ class $zh extends S {
   String get restore_from_seed_placeholder => "请在此处输入或粘贴您的代码短语";
   @override
   String get add_new_word => "添加新词";
+  @override
+  String get incorrect_seed => '输入的文字无效。';
 }
 
 class GeneratedLocalizationsDelegate extends LocalizationsDelegate<S> {

lib/src/screens/restore/restore_wallet_from_seed_page.dart

@@ -48,17 +48,12 @@ class RestoreFromSeedForm extends StatefulWidget {
 
 class _RestoreFromSeedFormState extends State<RestoreFromSeedForm> {
   final _seedKey = GlobalKey<SeedWidgetState>();
-  bool _reactionSet = false;
-
   void clear() => _seedKey.currentState.clear();
 
   @override
   Widget build(BuildContext context) {
     final walletRestorationStore = Provider.of<WalletRestorationStore>(context);
 
-    WidgetsBinding.instance.addPostFrameCallback(
-        (_) => _setReactions(context, walletRestorationStore));
-
     return GestureDetector(
       onTap: () =>
           SystemChannels.textInput.invokeMethod<void>('TextInput.hide'),
@@ -74,22 +69,4 @@ class _RestoreFromSeedFormState extends State<RestoreFromSeedForm> {
       ),
     );
   }
-
-  void _setReactions(BuildContext context, WalletRestorationStore store) {
-    if (_reactionSet) {
-      return;
-    }
-
-    reaction((_) => store.errorMessage, (String errorMessage) {
-      if (errorMessage == null || errorMessage.isEmpty) {
-        _seedKey.currentState.validated();
-      } else {
-        _seedKey.currentState.invalidate();
-      }
-
-      _seedKey.currentState.setErrorMessage(errorMessage);
-    });
-
-    _reactionSet = true;
-  }
 }

lib/src/widgets/primary_button.dart

@@ -8,10 +8,11 @@ class PrimaryButton extends StatelessWidget {
       @required this.text,
       @required this.color,
       @required this.borderColor,
-      
+      this.isDisabled = false,
-      this.isDisabled = false});
+      this.onDisabledPressed});
 
   final VoidCallback onPressed;
+  final VoidCallback onDisabledPressed;
   final Color color;
   final Color borderColor;
   final String text;
@@ -23,15 +24,19 @@ class PrimaryButton extends StatelessWidget {
         minWidth: double.infinity,
         height: 56.0,
         child: FlatButton(
-          onPressed: isDisabled ? null : onPressed,
+          onPressed: isDisabled
-          color: isDisabled ? Colors.grey : color,
+              ? (onDisabledPressed != null ? onDisabledPressed : null)
+              : onPressed,
+          color: isDisabled ? Colors.transparent : color,
           shape: RoundedRectangleBorder(
               side: BorderSide(color: borderColor),
               borderRadius: BorderRadius.circular(10.0)),
           child: Text(text,
               style: TextStyle(
                   fontSize: 16.0,
-                  color: isDisabled ? Palette.darkGrey :  Theme.of(context).primaryTextTheme.button.color)),
+                  color: isDisabled
+                      ? Palette.darkGrey
+                      : Theme.of(context).primaryTextTheme.button.color)),
         ));
   }
 }

lib/src/widgets/seed_widget.dart

@@ -27,8 +27,9 @@ class SeedWidgetState extends State<SeedWidget> {
   bool isValid;
   String errorMessage;
 
-  MnemoticItem currentMnemotic;
+  List<MnemoticItem> currentMnemotics;
   bool isCurrentMnemoticValid;
+  String _errorMessage;
 
   @override
   void initState() {
@@ -49,14 +50,6 @@ class SeedWidgetState extends State<SeedWidget> {
     }
   }
 
-  void deleteMnemotic(MnemoticItem item) {
-    setState(() => items.remove(item));
-
-    if (widget.onMnemoticChange != null) {
-      widget.onMnemoticChange(items);
-    }
-  }
-
   void mnemoticFromText(String text) {
     final splitted = text.split(' ');
 
@@ -78,7 +71,7 @@ class SeedWidgetState extends State<SeedWidget> {
   void selectMnemotic(MnemoticItem item) {
     setState(() {
       selectedItem = item;
-      currentMnemotic = item;
+      currentMnemotics = [item];
 
       _seedController
         ..text = item.text
@@ -106,18 +99,6 @@ class SeedWidgetState extends State<SeedWidget> {
     }
   }
 
-  void onFieldSubmitted(String text) {
-    if (text.isEmpty || text == null) {
-      return;
-    }
-
-    if (selectedItem != null) {
-      editTextOfSelectedMnemotic(text);
-    } else {
-      addMnemotic(text);
-    }
-  }
-
   void clear() {
     setState(() {
       items = [];
@@ -149,31 +130,68 @@ class SeedWidgetState extends State<SeedWidget> {
 
   void changeCurrentMnemotic(String text) {
     setState(() {
+      final trimmedText = text.trim();
+      final splitted = trimmedText.split(' ');
+      _errorMessage = null;
+
       if (text == null) {
-        currentMnemotic = null;
+        currentMnemotics = [];
         isCurrentMnemoticValid = false;
         return;
       }
 
-      currentMnemotic = MnemoticItem(text: text, dic: EnglishMnemonics.words);
+      currentMnemotics = splitted
-      isCurrentMnemoticValid = currentMnemotic.isCorrect();
+          .map((text) => MnemoticItem(text: text, dic: EnglishMnemonics.words))
+          .toList();
+
+      bool isValid = true;
+
+      for (final word in currentMnemotics) {
+        print('word ${word.text}');
+        isValid = word.isCorrect();
+
+        if (!isValid) {
+          break;
+        }
+      }
+
+      isCurrentMnemoticValid = isValid;
     });
   }
 
   void saveCurrentMnemoticToItems() {
     setState(() {
       if (selectedItem != null) {
-        selectedItem.changeText(currentMnemotic.text);
+        selectedItem.changeText(currentMnemotics.first.text.trim());
         selectedItem = null;
       } else {
-        items.add(currentMnemotic);
+        items.addAll(currentMnemotics);
       }
 
-      currentMnemotic = null;
+      currentMnemotics = [];
       _seedController.text = '';
     });
   }
 
+  void showErrorIfExist() {
+    setState(() => _errorMessage =
+        !isCurrentMnemoticValid ? S.current.incorrect_seed : null);
+  }
+
+  bool isSeedValid() {
+    bool isValid;
+
+    for (final item in items) {
+      isValid = item.isCorrect();
+
+      if (!isValid) {
+        break;
+      }
+    }
+
+    return isValid;
+  }
+
   @override
   Widget build(BuildContext context) {
     return Container(
@@ -258,6 +276,7 @@ class SeedWidgetState extends State<SeedWidget> {
                           hintStyle:
                               TextStyle(color: Theme.of(context).hintColor),
                           hintText: S.of(context).restore_from_seed_placeholder,
+                          errorText: _errorMessage,
                           focusedBorder: UnderlineInputBorder(
                               borderSide: BorderSide(
                                   color: Palette.cakeGreen, width: 2.0)),
@@ -273,6 +292,7 @@ class SeedWidgetState extends State<SeedWidget> {
                       child: (selectedItem == null && items.length == maxLength)
                           ? PrimaryButton(
                               text: S.of(context).restore_next,
+                              isDisabled: !isSeedValid(),
                               onPressed: () => widget.onFinish != null
                                   ? widget.onFinish()
                                   : null,
@@ -291,6 +311,7 @@ class SeedWidgetState extends State<SeedWidget> {
                               onPressed: () => isCurrentMnemoticValid
                                   ? saveCurrentMnemoticToItems()
                                   : null,
+                              onDisabledPressed: () => showErrorIfExist(),
                               isDisabled: !isCurrentMnemoticValid,
                               color: PaletteDark.darkThemeBlueButton,
                               borderColor: Palette.brightBlue))

res/values/strings_de.arb

@@ -335,5 +335,6 @@
   
   "paste" : "Einfügen",
   "restore_from_seed_placeholder" : "Bitte geben Sie hier Ihren Code ein",
-  "add_new_word" : "Neues Wort hinzufügen"
+  "add_new_word" : "Neues Wort hinzufügen",
+  "incorrect_seed" : "Der eingegebene Text ist ungültig."
 }

res/values/strings_en.arb

@@ -335,5 +335,6 @@
 
   "paste" : ""paste"",
   "restore_from_seed_placeholder" : "Please enter or "paste" your seed here",
-  "add_new_word" : "Add new word"
+  "add_new_word" : "Add new word",
+  "incorrect_seed" : "The text entered is not valid."
 }

res/values/strings_es.arb

@@ -335,5 +335,6 @@
 
   "paste" : "Pegar",
   "restore_from_seed_placeholder" : "Ingrese o pegue su frase de código aquí",
-  "add_new_word" : "Agregar palabra nueva"
+  "add_new_word" : "Agregar palabra nueva",
+  "incorrect_seed" : "El texto ingresado no es válido."
 }

res/values/strings_hi.arb

@@ -335,5 +335,6 @@
 
   "paste" : "पेस्ट करें",
   "restore_from_seed_placeholder" : "कृपया अपना कोड वाक्यांश यहां दर्ज करें या पेस्ट करें",
-  "add_new_word" : "नया शब्द जोड़ें"
+  "add_new_word" : "नया शब्द जोड़ें",
+  "incorrect_seed" : "दर्ज किया गया पाठ मान्य नहीं है।"
 }

res/values/strings_ja.arb

@@ -336,5 +336,6 @@
   "paste" : "ペースト",
   "restore_from_seed_placeholder" : "ここにコードフレーズを入力または貼り付けてください",
   "add_new_word" : "新しい単語を追加",
-  "add_new_word" : "새로운 단어 추가"
+  "add_new_word" : "새로운 단어 추가",
+  "incorrect_seed" : "入力されたテキストは無効です。"
 }

res/values/strings_ko.arb

@@ -334,5 +334,6 @@
   "change_language_to" : "언어를로 변경 ${language}?",
 
    "paste" : "풀",
-  "restore_from_seed_placeholder" : "여기에 코드 문구를 입력하거나 붙여 넣으십시오."
+  "restore_from_seed_placeholder" : "여기에 코드 문구를 입력하거나 붙여 넣으십시오.",
+  "incorrect_seed" : "입력하신 텍스트가 유효하지 않습니다."
 }

res/values/strings_nl.arb

@@ -335,5 +335,6 @@
   
   "paste" : "Plakken",
   "restore_from_seed_placeholder" : "Voer hier uw codefrase in of plak deze",
-  "add_new_word" : "Nieuw woord toevoegen"
+  "add_new_word" : "Nieuw woord toevoegen",
+  "incorrect_seed" : "De ingevoerde tekst is niet geldig."
 }

res/values/strings_pl.arb

@@ -335,5 +335,6 @@
 
   "paste" : "Pasta",
   "restore_from_seed_placeholder" : "Wpisz lub wklej tutaj swoją frazę kodową",
-  "add_new_word" : "Dodaj nowe słowo"
+  "add_new_word" : "Dodaj nowe słowo",
+  "incorrect_seed" : "Wprowadzony tekst jest nieprawidłowy."
 }

res/values/strings_pt.arb

@@ -335,5 +335,6 @@
   
   "paste" : "Colar",
   "restore_from_seed_placeholder" : "Digite ou cole sua frase de código aqui",
-  "add_new_word" : "Adicionar nova palavra"
+  "add_new_word" : "Adicionar nova palavra",
+  "incorrect_seed" : "O texto digitado não é válido."
 }

res/values/strings_ru.arb

@@ -335,5 +335,6 @@
 
   "paste" : "Вставить",
   "restore_from_seed_placeholder" : "Введите или вставте код фразу вашего кошелька",
-  "add_new_word" : "Добавить новое слово"
+  "add_new_word" : "Добавить новое слово",
+  "incorrect_seed" : "Введенный текст некорректный."
 }

res/values/strings_zh.arb

@@ -335,5 +335,6 @@
   
   "paste" : "糊",
   "restore_from_seed_placeholder" : "请在此处输入或粘贴您的代码短语",
-  "add_new_word" : "添加新词"
+  "add_new_word" : "添加新词",
+  "incorrect_seed" : "输入的文字无效。"
 }