various minor ui improvements

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

@@ -75,6 +75,7 @@ public class AppController implements Initializable {
     public static final String DRAG_OVER_CLASS = "drag-over";
     public static final double TAB_LABEL_GRAPHIC_OPACITY_INACTIVE = 0.8;
     public static final double TAB_LABEL_GRAPHIC_OPACITY_ACTIVE = 0.95;
+    public static final String LOADING_TRANSACTIONS_MESSAGE = "Loading wallet, select Transactions tab to view...";
 
     @FXML
     private MenuItem saveTransaction;
@@ -1356,6 +1357,7 @@ public class AppController implements Initializable {
     @Subscribe
     public void versionUpdated(VersionUpdatedEvent event) {
         Hyperlink versionUpdateLabel = new Hyperlink("Sparrow " + event.getVersion() + " available");
+        versionUpdateLabel.getStyleClass().add("version-hyperlink");
         versionUpdateLabel.setOnAction(event1 -> {
             AppServices.get().getApplication().getHostServices().showDocument("https://www.sparrowwallet.com/download");
         });
@@ -1449,7 +1451,7 @@ public class AppController implements Initializable {
     @Subscribe
     public void walletTabsClosed(WalletTabsClosedEvent event) {
         if(event.getClosedWalletTabData().stream().map(WalletTabData::getWallet).anyMatch(loadingWallets::remove) && loadingWallets.isEmpty()) {
-            if(statusBar.getText().equals("Loading transactions...")) {
+            if(statusBar.getText().equals(LOADING_TRANSACTIONS_MESSAGE)) {
                 statusBar.setText("");
             }
             if(statusTimeline == null || statusTimeline.getStatus() != Animation.Status.RUNNING) {
@@ -1471,7 +1473,7 @@ public class AppController implements Initializable {
     public void walletHistoryStarted(WalletHistoryStartedEvent event) {
         if(AppServices.isConnected() && getOpenWallets().containsKey(event.getWallet())) {
             if(event.getWalletNode() == null && event.getWallet().getTransactions().isEmpty()) {
-                statusUpdated(new StatusEvent("Loading transactions...", 120));
+                statusUpdated(new StatusEvent(LOADING_TRANSACTIONS_MESSAGE, 120));
                 if(statusTimeline == null || statusTimeline.getStatus() != Animation.Status.RUNNING) {
                     statusBar.setProgress(-1);
                     loadingWallets.add(event.getWallet());
@@ -1484,7 +1486,7 @@ public class AppController implements Initializable {
     @Subscribe
     public void walletHistoryFinished(WalletHistoryFinishedEvent event) {
         if(getOpenWallets().containsKey(event.getWallet())) {
-            if(statusBar.getText().equals("Loading transactions...")) {
+            if(statusBar.getText().equals(LOADING_TRANSACTIONS_MESSAGE)) {
                 statusBar.setText("");
             }
             if(statusTimeline == null || statusTimeline.getStatus() != Animation.Status.RUNNING) {

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

@@ -392,6 +392,19 @@ public class MnemonicKeystoreImportPane extends TitledDescriptionPane {
             label.setAlignment(Pos.CENTER_RIGHT);
             wordField = new TextField();
             wordField.setMaxWidth(100);
+            TextFormatter<?> formatter = new TextFormatter<>((TextFormatter.Change change) -> {
+                String text = change.getText();
+                // if text was added, fix the text to fit the requirements
+                if(!text.isEmpty()) {
+                    String newText = text.replace(" ", "").toLowerCase();
+                    int carretPos = change.getCaretPosition() - text.length() + newText.length();
+                    change.setText(newText);
+                    // fix caret position based on difference in originally added text and fixed text
+                    change.selectRange(carretPos, carretPos);
+                }
+                return change;
+            });
+            wordField.setTextFormatter(formatter);
 
             wordList = Bip39MnemonicCode.INSTANCE.getWordList();
             AutoCompletionBinding<String> autoCompletionBinding = TextFields.bindAutoCompletion(wordField, new WordlistSuggestionProvider(wordList));

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

@@ -4,6 +4,8 @@ import com.sparrowwallet.sparrow.AppServices;
 import javafx.application.Platform;
 import javafx.beans.NamedArg;
 import javafx.scene.control.*;
+import javafx.scene.image.Image;
+import javafx.scene.image.ImageView;
 import javafx.scene.layout.HBox;
 import javafx.scene.layout.Priority;
 
@@ -18,6 +20,9 @@ public class TextAreaDialog extends Dialog<String> {
     public TextAreaDialog(@NamedArg("defaultValue") String defaultValue) {
         final DialogPane dialogPane = getDialogPane();
 
+        Image image = new Image("/image/sparrow-small.png");
+        dialogPane.setGraphic(new ImageView(image));
+
         HBox hbox = new HBox();
         this.textArea = new TextArea(defaultValue);
         this.textArea.setMaxWidth(Double.MAX_VALUE);

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

@@ -252,12 +252,21 @@ public class KeystoreController extends WalletFormController implements Initiali
         importButton.setTooltip(new Tooltip(keystore.getSource() == KeystoreSource.SW_WATCH ? "Import a keystore from an external source" : "Replace this keystore with another source"));
 
         boolean editable = (keystore.getSource() == KeystoreSource.SW_WATCH);
-        fingerprint.setEditable(editable);
-        derivation.setEditable(editable);
-        xpub.setEditable(editable);
+        setEditable(fingerprint, editable);
+        setEditable(derivation, editable);
+        setEditable(xpub, editable);
         scanXpubQR.setVisible(editable);
     }
 
+    private void setEditable(TextInputControl textInputControl, boolean editable) {
+        textInputControl.setEditable(editable);
+        if(!editable && !textInputControl.getStyleClass().contains("readonly")) {
+            textInputControl.getStyleClass().add("readonly");
+        } else if(editable) {
+            textInputControl.getStyleClass().remove("readonly");
+        }
+    }
+
     private String getTypeLabel(Keystore keystore) {
         switch (keystore.getSource()) {
             case HW_USB:

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

@@ -276,7 +276,7 @@ public class SettingsController extends WalletFormController implements Initiali
 
         TextAreaDialog dialog = new TextAreaDialog(outputDescriptorString);
         dialog.setTitle("Edit wallet output descriptor");
-        dialog.getDialogPane().setHeaderText("Wallet output descriptor:");
+        dialog.getDialogPane().setHeaderText("The wallet configuration is specified in the output descriptor.\nChanges to the output descriptor will modify the wallet configuration.");
         Optional<String> text = dialog.showAndWait();
         if(text.isPresent() && !text.get().isEmpty() && !text.get().equals(outputDescriptorString)) {
             setDescriptorText(text.get());