wallet export, settings fixes

drongo

@@ -1 +1 @@
-Subproject commit 766a986abb72ea84317a405b93055abc3d1eaf22
+Subproject commit f6414a447550eb87a871c54c7e376713cae8eb9c

src/main/java/com/sparrowwallet/sparrow/AppController.java

@@ -13,13 +13,8 @@ import com.sparrowwallet.drongo.protocol.Transaction;
 import com.sparrowwallet.drongo.psbt.PSBT;
 import com.sparrowwallet.drongo.psbt.PSBTParseException;
 import com.sparrowwallet.drongo.wallet.Wallet;
-import com.sparrowwallet.sparrow.control.TextAreaDialog;
+import com.sparrowwallet.sparrow.control.*;
-import com.sparrowwallet.sparrow.control.WalletImportDialog;
+import com.sparrowwallet.sparrow.event.*;
-import com.sparrowwallet.sparrow.control.WalletNameDialog;
-import com.sparrowwallet.sparrow.control.WalletPasswordDialog;
-import com.sparrowwallet.sparrow.event.TabEvent;
-import com.sparrowwallet.sparrow.event.TransactionTabChangedEvent;
-import com.sparrowwallet.sparrow.event.TransactionTabSelectedEvent;
 import com.sparrowwallet.sparrow.io.FileType;
 import com.sparrowwallet.sparrow.io.IOUtils;
 import com.sparrowwallet.sparrow.io.Storage;
@@ -46,6 +41,9 @@ public class AppController implements Initializable {
     private static final String TRANSACTION_TAB_TYPE = "transaction";
     public static final String DRAG_OVER_CLASS = "drag-over";
 
+    @FXML
+    private MenuItem exportWallet;
+
     @FXML
     private CheckMenuItem showTxHex;
 
@@ -96,12 +94,19 @@ public class AppController implements Initializable {
                 TabData tabData = (TabData)selectedTab.getUserData();
                 if(tabData.getType() == TabData.TabType.TRANSACTION) {
                     EventManager.get().post(new TransactionTabSelectedEvent(selectedTab));
+                    exportWallet.setDisable(true);
+                    showTxHex.setDisable(false);
+                } else if(tabData.getType() == TabData.TabType.WALLET) {
+                    EventManager.get().post(new WalletTabSelectedEvent(selectedTab));
+                    exportWallet.setDisable(false);
+                    showTxHex.setDisable(true);
                 }
             }
         });
 
         showTxHex.setSelected(true);
         showTxHexProperty = true;
+        exportWallet.setDisable(true);
 
         //addWalletTab("newWallet", new Wallet(PolicyType.SINGLE, ScriptType.P2WPKH));
     }
@@ -269,6 +274,19 @@ public class AppController implements Initializable {
         }
     }
 
+    public void exportWallet(ActionEvent event) {
+        Tab selectedTab = tabs.getSelectionModel().getSelectedItem();
+        TabData tabData = (TabData)selectedTab.getUserData();
+        if(tabData.getType() == TabData.TabType.WALLET) {
+            WalletTabData walletTabData = (WalletTabData)tabData;
+            WalletExportDialog dlg = new WalletExportDialog(walletTabData.getWallet());
+            Optional<Wallet> wallet = dlg.showAndWait();
+            if(wallet.isPresent()) {
+                //Successful export
+            }
+        }
+    }
+
     public Tab addWalletTab(File walletFile, ECKey encryptionPubKey, Wallet wallet) {
         try {
             String name = walletFile.getName();
@@ -276,7 +294,7 @@ public class AppController implements Initializable {
                 name = name.substring(0, name.lastIndexOf('.'));
             }
             Tab tab = new Tab(name);
-            TabData tabData = new TabData(TabData.TabType.WALLET);
+            TabData tabData = new WalletTabData(TabData.TabType.WALLET, wallet, walletFile);
             tab.setUserData(tabData);
             tab.setContextMenu(getTabContextMenu(tab));
             tab.setClosable(true);
@@ -351,7 +369,7 @@ public class AppController implements Initializable {
             }
 
             Tab tab = new Tab(tabName);
-            TabData tabData = new TabData(TabData.TabType.TRANSACTION);
+            TabData tabData = new TransactionTabData(TabData.TabType.TRANSACTION, transaction);
             tab.setUserData(tabData);
             tab.setContextMenu(getTabContextMenu(tab));
             tab.setClosable(true);
@@ -397,7 +415,7 @@ public class AppController implements Initializable {
     }
 
     @Subscribe
-    public void tabSelected(TabEvent event) {
+    public void tabSelected(TabSelectedEvent event) {
         Tab selectedTab = event.getTab();
         String tabType = (String)selectedTab.getUserData();
 

src/main/java/com/sparrowwallet/sparrow/TransactionTabData.java

@@ -0,0 +1,16 @@
+package com.sparrowwallet.sparrow;
+
+import com.sparrowwallet.drongo.protocol.Transaction;
+
+public class TransactionTabData extends TabData {
+    private Transaction transaction;
+
+    public TransactionTabData(TabType type, Transaction transaction) {
+        super(type);
+        this.transaction = transaction;
+    }
+
+    public Transaction getTransaction() {
+        return transaction;
+    }
+}

src/main/java/com/sparrowwallet/sparrow/WalletTabData.java

@@ -0,0 +1,35 @@
+package com.sparrowwallet.sparrow;
+
+import com.google.common.eventbus.Subscribe;
+import com.sparrowwallet.drongo.wallet.Wallet;
+import com.sparrowwallet.sparrow.event.WalletChangedEvent;
+
+import java.io.File;
+
+public class WalletTabData extends TabData {
+    private Wallet wallet;
+    private final File walletFile;
+
+    public WalletTabData(TabType type, Wallet wallet, File walletFile) {
+        super(type);
+        this.wallet = wallet;
+        this.walletFile = walletFile;
+
+        EventManager.get().register(this);
+    }
+
+    public Wallet getWallet() {
+        return wallet;
+    }
+
+    public File getWalletFile() {
+        return walletFile;
+    }
+
+    @Subscribe
+    public void walletChanged(WalletChangedEvent event) {
+        if(event.getWalletFile().equals(walletFile)) {
+            wallet = event.getWallet();
+        }
+    }
+}

src/main/java/com/sparrowwallet/sparrow/control/FileImportPane.java

@@ -51,7 +51,7 @@ public abstract class FileImportPane extends TitledDescriptionPane {
         Stage window = new Stage();
 
         FileChooser fileChooser = new FileChooser();
-        fileChooser.setTitle("Open " + importer.getWalletModel().toDisplayString() + " keystore");
+        fileChooser.setTitle("Open " + importer.getWalletModel().toDisplayString() + " File");
         fileChooser.getExtensionFilters().addAll(
                 new FileChooser.ExtensionFilter("All Files", "*.*"),
                 new FileChooser.ExtensionFilter("JSON", "*.json")

src/main/java/com/sparrowwallet/sparrow/control/FileWalletExportPane.java

@@ -0,0 +1,88 @@
+package com.sparrowwallet.sparrow.control;
+
+import com.sparrowwallet.drongo.wallet.Keystore;
+import com.sparrowwallet.drongo.wallet.Wallet;
+import com.sparrowwallet.sparrow.EventManager;
+import com.sparrowwallet.sparrow.event.WalletExportEvent;
+import com.sparrowwallet.sparrow.io.WalletExport;
+import javafx.geometry.Pos;
+import javafx.scene.control.Button;
+import javafx.scene.control.Control;
+import javafx.stage.FileChooser;
+import javafx.stage.Stage;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.OutputStream;
+import java.util.Optional;
+
+public class FileWalletExportPane extends TitledDescriptionPane {
+    private final Wallet wallet;
+    private final WalletExport exporter;
+
+    public FileWalletExportPane(Wallet wallet, WalletExport exporter) {
+        super(exporter.getName(), "Wallet file export", exporter.getWalletExportDescription(), "image/" + exporter.getWalletModel().getType() + ".png");
+        this.wallet = wallet;
+        this.exporter = exporter;
+    }
+
+    @Override
+    protected Control createButton() {
+        Button exportButton = new Button("Export Wallet...");
+        exportButton.setAlignment(Pos.CENTER_RIGHT);
+        exportButton.setOnAction(event -> {
+            exportWallet();
+        });
+        return exportButton;
+    }
+
+    private void exportWallet() {
+        Stage window = new Stage();
+
+        FileChooser fileChooser = new FileChooser();
+        fileChooser.setTitle("Export " + exporter.getWalletModel().toDisplayString() + " File");
+
+        File file = fileChooser.showSaveDialog(window);
+        if(file != null) {
+            exportWallet(file);
+        }
+    }
+
+    private void exportWallet(File file) {
+        Wallet copy = wallet.copy();
+
+        if(copy.isEncrypted()) {
+            WalletPasswordDialog dlg = new WalletPasswordDialog(WalletPasswordDialog.PasswordRequirement.LOAD);
+            Optional<String> password = dlg.showAndWait();
+            if(password.isPresent()) {
+               copy.decrypt(password.get(), "");
+
+               for(Keystore keystore : copy.getKeystores()) {
+                   if(keystore.hasSeed() && keystore.getSeed().needPassphrase()) {
+                       KeystorePassphraseDialog passphraseDialog = new KeystorePassphraseDialog(keystore);
+                       Optional<String> passphrase = passphraseDialog.showAndWait();
+                       if(passphrase.isPresent()) {
+                           keystore.setPassphrase(passphrase.get());
+                       } else {
+                           return;
+                       }
+                   }
+               }
+            } else {
+                return;
+            }
+        }
+
+        try {
+            OutputStream outputStream = new FileOutputStream(file);
+            exporter.exportWallet(copy, outputStream);
+            EventManager.get().post(new WalletExportEvent(copy));
+        } catch(Exception e) {
+            String errorMessage = e.getMessage();
+            if(e.getCause() != null && e.getCause().getMessage() != null && !e.getCause().getMessage().isEmpty()) {
+                errorMessage = e.getCause().getMessage();
+            }
+            setError("Export Error", errorMessage);
+        }
+    }
+}

src/main/java/com/sparrowwallet/sparrow/control/KeystorePassphraseDialog.java

@@ -0,0 +1,41 @@
+package com.sparrowwallet.sparrow.control;
+
+import com.sparrowwallet.drongo.wallet.Keystore;
+import com.sparrowwallet.sparrow.AppController;
+import com.sparrowwallet.sparrow.glyphfont.FontAwesome5;
+import javafx.scene.control.ButtonType;
+import javafx.scene.control.Dialog;
+import javafx.scene.control.DialogPane;
+import javafx.scene.layout.VBox;
+import org.controlsfx.control.textfield.CustomPasswordField;
+import org.controlsfx.control.textfield.TextFields;
+import org.controlsfx.glyphfont.Glyph;
+
+public class KeystorePassphraseDialog extends Dialog<String> {
+    private final CustomPasswordField passphrase;
+
+    public KeystorePassphraseDialog(Keystore keystore) {
+        this.passphrase = (CustomPasswordField) TextFields.createClearablePasswordField();
+
+        final DialogPane dialogPane = getDialogPane();
+        setTitle("Keystore Passphrase");
+        dialogPane.setHeaderText("Please enter the passphrase for keystore: " + keystore.getLabel());
+        dialogPane.getStylesheets().add(AppController.class.getResource("general.css").toExternalForm());
+        dialogPane.getButtonTypes().addAll(ButtonType.CANCEL, ButtonType.OK);
+        dialogPane.setPrefWidth(380);
+        dialogPane.setPrefHeight(200);
+
+        Glyph lock = new Glyph("FontAwesome5", FontAwesome5.Glyph.KEY);
+        lock.setFontSize(50);
+        dialogPane.setGraphic(lock);
+
+        final VBox content = new VBox(10);
+        content.setPrefHeight(50);
+        content.getChildren().add(passphrase);
+
+        dialogPane.setContent(content);
+        passphrase.requestFocus();
+
+        setResultConverter(dialogButton -> dialogButton == ButtonType.OK ? passphrase.getText() : null);
+    }
+}

src/main/java/com/sparrowwallet/sparrow/control/WalletExportDialog.java

@@ -0,0 +1,71 @@
+package com.sparrowwallet.sparrow.control;
+
+import com.google.common.eventbus.Subscribe;
+import com.sparrowwallet.drongo.policy.PolicyType;
+import com.sparrowwallet.drongo.wallet.Wallet;
+import com.sparrowwallet.sparrow.EventManager;
+import com.sparrowwallet.sparrow.event.WalletExportEvent;
+import com.sparrowwallet.sparrow.event.WalletImportEvent;
+import com.sparrowwallet.sparrow.io.ColdcardMultisig;
+import com.sparrowwallet.sparrow.io.Electrum;
+import com.sparrowwallet.sparrow.io.WalletExport;
+import com.sparrowwallet.sparrow.io.WalletImport;
+import javafx.scene.control.*;
+import javafx.scene.layout.AnchorPane;
+import javafx.scene.layout.StackPane;
+
+import java.util.List;
+
+public class WalletExportDialog extends Dialog<Wallet> {
+    private Wallet wallet;
+
+    public WalletExportDialog(Wallet wallet) {
+        EventManager.get().register(this);
+
+        final DialogPane dialogPane = getDialogPane();
+
+        StackPane stackPane = new StackPane();
+        dialogPane.setContent(stackPane);
+
+        AnchorPane anchorPane = new AnchorPane();
+        stackPane.getChildren().add(anchorPane);
+
+        ScrollPane scrollPane = new ScrollPane();
+        scrollPane.setPrefHeight(280);
+        scrollPane.setHbarPolicy(ScrollPane.ScrollBarPolicy.NEVER);
+        anchorPane.getChildren().add(scrollPane);
+        scrollPane.setFitToWidth(true);
+        AnchorPane.setLeftAnchor(scrollPane, 0.0);
+        AnchorPane.setRightAnchor(scrollPane, 0.0);
+
+        List<WalletExport> exporters;
+        if(wallet.getPolicyType() == PolicyType.SINGLE) {
+            exporters = List.of(new Electrum());
+        } else if(wallet.getPolicyType() == PolicyType.MULTI) {
+            exporters = List.of(new ColdcardMultisig(), new Electrum());
+        } else {
+            throw new UnsupportedOperationException("Cannot export wallet with policy type " + wallet.getPolicyType());
+        }
+
+        Accordion exportAccordion = new Accordion();
+        for (WalletExport exporter : exporters) {
+            FileWalletExportPane exportPane = new FileWalletExportPane(wallet, exporter);
+            exportAccordion.getPanes().add(exportPane);
+        }
+        scrollPane.setContent(exportAccordion);
+
+        final ButtonType cancelButtonType = new javafx.scene.control.ButtonType("Cancel", ButtonBar.ButtonData.CANCEL_CLOSE);
+        dialogPane.getButtonTypes().addAll(cancelButtonType);
+        dialogPane.setPrefWidth(500);
+        dialogPane.setPrefHeight(360);
+
+        setResultConverter(dialogButton -> dialogButton != cancelButtonType ? wallet : null);
+    }
+
+    @Subscribe
+    public void walletExported(WalletExportEvent event) {
+        wallet = event.getWallet();
+        setResult(wallet);
+        this.close();
+    }
+}

src/main/java/com/sparrowwallet/sparrow/event/TabSelectedEvent.java

@@ -0,0 +1,9 @@
+package com.sparrowwallet.sparrow.event;
+
+import javafx.scene.control.Tab;
+
+public class TabSelectedEvent extends TabEvent {
+    public TabSelectedEvent(Tab tab) {
+        super(tab);
+    }
+}

src/main/java/com/sparrowwallet/sparrow/event/TransactionTabSelectedEvent.java

@@ -2,7 +2,7 @@ package com.sparrowwallet.sparrow.event;
 
 import javafx.scene.control.Tab;
 
-public class TransactionTabSelectedEvent extends TabEvent {
+public class TransactionTabSelectedEvent extends TabSelectedEvent {
     public TransactionTabSelectedEvent(Tab tab) {
         super(tab);
     }

src/main/java/com/sparrowwallet/sparrow/event/WalletChangedEvent.java

@@ -2,14 +2,22 @@ package com.sparrowwallet.sparrow.event;
 
 import com.sparrowwallet.drongo.wallet.Wallet;
 
-public class WalletChangedEvent {
+import java.io.File;
-    private Wallet wallet;
 
-    public WalletChangedEvent(Wallet wallet) {
+public class WalletChangedEvent {
+    private final Wallet wallet;
+    private final File walletFile;
+
+    public WalletChangedEvent(Wallet wallet, File walletFile) {
         this.wallet = wallet;
+        this.walletFile = walletFile;
     }
 
     public Wallet getWallet() {
         return wallet;
     }
+
+    public File getWalletFile() {
+        return walletFile;
+    }
 }

src/main/java/com/sparrowwallet/sparrow/event/WalletExportEvent.java

@@ -0,0 +1,15 @@
+package com.sparrowwallet.sparrow.event;
+
+import com.sparrowwallet.drongo.wallet.Wallet;
+
+public class WalletExportEvent {
+    private Wallet wallet;
+
+    public WalletExportEvent(Wallet wallet) {
+        this.wallet = wallet;
+    }
+
+    public Wallet getWallet() {
+        return wallet;
+    }
+}

src/main/java/com/sparrowwallet/sparrow/event/WalletTabSelectedEvent.java

@@ -0,0 +1,9 @@
+package com.sparrowwallet.sparrow.event;
+
+import javafx.scene.control.Tab;
+
+public class WalletTabSelectedEvent extends TabSelectedEvent {
+    public WalletTabSelectedEvent(Tab tab) {
+        super(tab);
+    }
+}

src/main/java/com/sparrowwallet/sparrow/glyphfont/FontAwesome5.java

@@ -18,6 +18,7 @@ public class FontAwesome5 extends GlyphFont {
         CIRCLE('\uf111'),
         EXCLAMATION_CIRCLE('\uf06a'),
         EYE('\uf06e'),
+        KEY('\uf084'),
         LAPTOP('\uf109'),
         SD_CARD('\uf7c2'),
         WALLET('\uf555');

src/main/java/com/sparrowwallet/sparrow/io/Electrum.java

@@ -157,15 +157,36 @@ public class Electrum implements KeystoreFileImport, WalletImport, WalletExport
                 throw new ExportException("Could not export a wallet with a " + wallet.getPolicyType() + " policy");
             }
 
-            ExtendedKey.Header xpubHeader = ExtendedKey.Header.fromScriptType(wallet.getScriptType());
+            ExtendedKey.Header xpubHeader = ExtendedKey.Header.fromScriptType(wallet.getScriptType(), false);
+            ExtendedKey.Header xprvHeader = ExtendedKey.Header.fromScriptType(wallet.getScriptType(), true);
 
             int index = 1;
             for(Keystore keystore : wallet.getKeystores()) {
                 ElectrumKeystore ek = new ElectrumKeystore();
-                ek.xpub = keystore.getExtendedPublicKey().toString(xpubHeader);
+
-                ek.derivation = keystore.getKeyDerivation().getDerivationPath();
+                if(keystore.getSource() == KeystoreSource.HW_USB || keystore.getSource() == KeystoreSource.HW_AIRGAPPED) {
-                ek.root_fingerprint = keystore.getKeyDerivation().getMasterFingerprint();
+                    ek.label = keystore.getLabel();
-                ek.label = keystore.getLabel();
+                    ek.derivation = keystore.getKeyDerivation().getDerivationPath();
+                    ek.root_fingerprint = keystore.getKeyDerivation().getMasterFingerprint();
+                    ek.xpub = keystore.getExtendedPublicKey().toString(xpubHeader);
+                    ek.type = "hardware";
+                    ek.hw_type = keystore.getWalletModel().getType();
+                    ew.use_encryption = false;
+                } else if(keystore.getSource() == KeystoreSource.SW_SEED) {
+                    ek.type = "bip32";
+                    ek.xpub = keystore.getExtendedPublicKey().toString(xpubHeader);
+                    ek.xprv = keystore.getExtendedPrivateKey().toString(xprvHeader);
+                    ek.pw_hash_version = 1;
+                    ew.seed_type = "bip39";
+                    ew.use_encryption = false;
+                } else if(keystore.getSource() == KeystoreSource.SW_WATCH) {
+                    ek.type = "bip32";
+                    ek.xpub = keystore.getExtendedPublicKey().toString(xpubHeader);
+                    ek.pw_hash_version = 1;
+                    ew.use_encryption = false;
+                } else {
+                    throw new ExportException("Cannot export a keystore of source " + keystore.getSource());
+                }
 
                 if(wallet.getPolicyType().equals(PolicyType.SINGLE)) {
                     ew.keystores.put("keystore", ek);
@@ -179,6 +200,12 @@ public class Electrum implements KeystoreFileImport, WalletImport, WalletExport
             Gson gson = new Gson();
             JsonObject eJson = gson.toJsonTree(ew.keystores).getAsJsonObject();
             eJson.addProperty("wallet_type", ew.wallet_type);
+            if(ew.use_encryption != null) {
+                eJson.addProperty("use_encryption", ew.use_encryption);
+            }
+            if(ew.seed_type != null) {
+                eJson.addProperty("seed_type", ew.seed_type);
+            }
 
             gson = new GsonBuilder().setPrettyPrinting().disableHtmlEscaping().create();
             String json = gson.toJson(eJson);
@@ -203,6 +230,8 @@ public class Electrum implements KeystoreFileImport, WalletImport, WalletExport
     private static class ElectrumJsonWallet {
         public Map<String, ElectrumKeystore> keystores = new LinkedHashMap<>();
         public String wallet_type;
+        public String seed_type;
+        public Boolean use_encryption;
     }
 
     public static class ElectrumKeystore {
@@ -216,5 +245,6 @@ public class Electrum implements KeystoreFileImport, WalletImport, WalletExport
         public String type;
         public String derivation;
         public String seed;
+        public Integer pw_hash_version;
     }
 }

src/main/java/com/sparrowwallet/sparrow/io/Export.java

@@ -1,5 +1,8 @@
 package com.sparrowwallet.sparrow.io;
 
+import com.sparrowwallet.drongo.wallet.WalletModel;
+
 public interface Export {
     String getName();
+    WalletModel getWalletModel();
 }

src/main/java/com/sparrowwallet/sparrow/io/ExportException.java

@@ -1,6 +1,6 @@
 package com.sparrowwallet.sparrow.io;
 
-public class ExportException extends Throwable {
+public class ExportException extends Exception {
     public ExportException() {
         super();
     }

src/main/java/com/sparrowwallet/sparrow/wallet/KeystoreController.java

@@ -4,7 +4,6 @@ import com.google.common.eventbus.Subscribe;
 import com.sparrowwallet.drongo.ExtendedKey;
 import com.sparrowwallet.drongo.KeyDerivation;
 import com.sparrowwallet.drongo.Utils;
-import com.sparrowwallet.drongo.protocol.ScriptType;
 import com.sparrowwallet.drongo.wallet.Keystore;
 import com.sparrowwallet.drongo.wallet.KeystoreSource;
 import com.sparrowwallet.sparrow.EventManager;
@@ -20,10 +19,8 @@ import org.controlsfx.validation.ValidationResult;
 import org.controlsfx.validation.ValidationSupport;
 import org.controlsfx.validation.Validator;
 import org.controlsfx.validation.decoration.StyleClassValidationDecoration;
-import tornadofx.control.Form;
 
 import java.net.URL;
-import java.util.Arrays;
 import java.util.Optional;
 import java.util.ResourceBundle;
 import java.util.stream.Collectors;
@@ -94,7 +91,7 @@ public class KeystoreController extends WalletFormController implements Initiali
             EventManager.get().post(new SettingsChangedEvent(walletForm.getWallet(), SettingsChangedEvent.Type.KEYSTORE_FINGERPRINT));
         });
         derivation.textProperty().addListener((observable, oldValue, newValue) -> {
-            if(KeyDerivation.isValid(newValue) && !matchesAnotherScriptType(newValue)) {
+            if(KeyDerivation.isValid(newValue) && !walletForm.getWallet().derivationMatchesAnotherScriptType(newValue)) {
                 keystore.setKeyDerivation(new KeyDerivation(keystore.getKeyDerivation().getMasterFingerprint(), newValue));
                 EventManager.get().post(new SettingsChangedEvent(walletForm.getWallet(), SettingsChangedEvent.Type.KEYSTORE_DERIVATION));
             }
@@ -140,7 +137,7 @@ public class KeystoreController extends WalletFormController implements Initiali
         validationSupport.registerValidator(derivation, Validator.combine(
                 Validator.createEmptyValidator("Derivation is required"),
                 (Control c, String newValue) -> ValidationResult.fromErrorIf( c, "Derivation is invalid", !KeyDerivation.isValid(newValue)),
-                (Control c, String newValue) -> ValidationResult.fromErrorIf( c, "Derivation matches another script type", matchesAnotherScriptType(newValue))
+                (Control c, String newValue) -> ValidationResult.fromErrorIf( c, "Derivation matches another script type", walletForm.getWallet().derivationMatchesAnotherScriptType(newValue))
         ));
 
         validationSupport.registerValidator(fingerprint, Validator.combine(
@@ -151,14 +148,6 @@ public class KeystoreController extends WalletFormController implements Initiali
         validationSupport.setValidationDecorator(new StyleClassValidationDecoration());
     }
 
-    private boolean matchesAnotherScriptType(String derivationPath) {
-        if(walletForm.getWallet().getScriptType() != null && walletForm.getWallet().getScriptType().getAccount(derivationPath) > -1) {
-            return false;
-        }
-
-        return Arrays.stream(ScriptType.values()).anyMatch(scriptType -> !scriptType.equals(walletForm.getWallet().getScriptType()) && scriptType.getAccount(derivationPath) > -1);
-    }
-
     private void updateType() {
         type.setText(getTypeLabel(keystore));
 
@@ -211,9 +200,9 @@ public class KeystoreController extends WalletFormController implements Initiali
 
     @Subscribe
     public void update(SettingsChangedEvent event) {
-        if(event.getType().equals(SettingsChangedEvent.Type.SCRIPT_TYPE) && !derivation.getText().isEmpty()) {
+        if(walletForm.getWallet().equals(event.getWallet()) && event.getType().equals(SettingsChangedEvent.Type.SCRIPT_TYPE) && !derivation.getText().isEmpty()) {
             String derivationPath = derivation.getText();
-            derivation.setText("");
+            derivation.setText(derivationPath + " ");
             derivation.setText(derivationPath);
         }
     }

src/main/java/com/sparrowwallet/sparrow/wallet/SettingsController.java

@@ -165,7 +165,7 @@ public class SettingsController extends WalletFormController implements Initiali
                     walletForm.save();
                     revert.setDisable(true);
                     apply.setDisable(true);
-                    EventManager.get().post(new WalletChangedEvent(walletForm.getWallet()));
+                    EventManager.get().post(new WalletChangedEvent(walletForm.getWallet(), walletForm.getWalletFile()));
                 }
             } catch (IOException e) {
                 AppController.showErrorDialog("Error saving file", e.getMessage());
@@ -226,13 +226,11 @@ public class SettingsController extends WalletFormController implements Initiali
                 if(result.getErrors().isEmpty()) {
                     tab.getStyleClass().remove("tab-error");
                     tab.setTooltip(null);
-                    apply.setDisable(false);
                 } else {
                     if(!tab.getStyleClass().contains("tab-error")) {
                         tab.getStyleClass().add("tab-error");
                     }
                     tab.setTooltip(new Tooltip(result.getErrors().iterator().next().getText()));
-                    apply.setDisable(true);
                 }
             });
 
@@ -242,28 +240,20 @@ public class SettingsController extends WalletFormController implements Initiali
         }
     }
 
-    private boolean tabsValidate() {
-        for(Tab tab : keystoreTabs.getTabs()) {
-            if(tab.getStyleClass().contains("tab-error")) {
-                return false;
-            }
-        }
-
-        return true;
-    }
-
     @Subscribe
     public void update(SettingsChangedEvent event) {
         Wallet wallet = event.getWallet();
-        if(wallet.getPolicyType() == PolicyType.SINGLE) {
+        if(walletForm.getWallet().equals(wallet)) {
-            wallet.setDefaultPolicy(Policy.getPolicy(wallet.getPolicyType(), wallet.getScriptType(), wallet.getKeystores(), 1));
+            if(wallet.getPolicyType() == PolicyType.SINGLE) {
-        } else if(wallet.getPolicyType() == PolicyType.MULTI) {
+                wallet.setDefaultPolicy(Policy.getPolicy(wallet.getPolicyType(), wallet.getScriptType(), wallet.getKeystores(), 1));
-            wallet.setDefaultPolicy(Policy.getPolicy(wallet.getPolicyType(), wallet.getScriptType(), wallet.getKeystores(), (int)multisigControl.getLowValue()));
+            } else if(wallet.getPolicyType() == PolicyType.MULTI) {
-        }
+                wallet.setDefaultPolicy(Policy.getPolicy(wallet.getPolicyType(), wallet.getScriptType(), wallet.getKeystores(), (int)multisigControl.getLowValue()));
+            }
 
-        spendingMiniscript.setText(event.getWallet().getDefaultPolicy().getMiniscript().getScript());
+            spendingMiniscript.setText(wallet.getDefaultPolicy().getMiniscript().getScript());
-        revert.setDisable(false);
+            revert.setDisable(false);
-        Platform.runLater(() -> apply.setDisable(!tabsValidate()));
+            apply.setDisable(!wallet.isValid());
+        }
     }
 
     private Optional<ECKey> requestEncryption(ECKey existingPubKey) {

src/main/java/com/sparrowwallet/sparrow/wallet/WalletForm.java

@@ -11,7 +11,7 @@ import java.io.IOException;
 public class WalletForm {
     public static final ECKey NO_PASSWORD_KEY = ECKey.fromPublicOnly(ECIESKeyCrypter.deriveECKey(""));
 
-    private File walletFile;
+    private final File walletFile;
     private ECKey encryptionPubKey;
     private Wallet oldWallet;
     private Wallet wallet;
@@ -27,6 +27,10 @@ public class WalletForm {
         return wallet;
     }
 
+    public File getWalletFile() {
+        return walletFile;
+    }
+
     public ECKey getEncryptionPubKey() {
         return encryptionPubKey;
     }

src/main/resources/com/sparrowwallet/sparrow/app.fxml

@@ -22,6 +22,7 @@
                             </items>
                         </Menu>
                         <MenuItem mnemonicParsing="false" text="Import Wallet..." onAction="#importWallet"/>
+                        <MenuItem fx:id="exportWallet" mnemonicParsing="false" text="Export Wallet..." onAction="#exportWallet"/>
                         <MenuItem mnemonicParsing="false" text="Close" onAction="#closeTab"/>
                     </items>
                 </Menu>