finalise tx with signing wallet and sighash

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

@@ -28,6 +28,7 @@ import javafx.animation.*;
 import javafx.application.Platform;
 import javafx.beans.property.BooleanProperty;
 import javafx.beans.property.SimpleBooleanProperty;
+import javafx.collections.ListChangeListener;
 import javafx.concurrent.Worker;
 import javafx.event.ActionEvent;
 import javafx.fxml.FXML;
@@ -158,6 +159,13 @@ public class AppController implements Initializable {
             }
         });
 
+        tabs.setTabDragPolicy(TabPane.TabDragPolicy.REORDER);
+        tabs.getTabs().addListener((ListChangeListener<Tab>) c -> {
+            if(c.next() && (c.wasAdded() || c.wasRemoved())) {
+                EventManager.get().post(new OpenWalletsEvent(getOpenWallets()));
+            }
+        });
+
         BitcoinUnit unit = Config.get().getBitcoinUnit();
         if(unit == null) {
             unit = BitcoinUnit.AUTO;
@@ -401,6 +409,20 @@ public class AppController implements Initializable {
         return fiatCurrencyExchangeRate;
     }
 
+    public List<Wallet> getOpenWallets() {
+        List<Wallet> openWallets = new ArrayList<>();
+
+        for(Tab tab : tabs.getTabs()) {
+            TabData tabData = (TabData)tab.getUserData();
+            if(tabData.getType() == TabData.TabType.WALLET) {
+                WalletTabData walletTabData = (WalletTabData) tabData;
+                openWallets.add(walletTabData.getWallet());
+            }
+        }
+
+        return openWallets;
+    }
+
     public static void showErrorDialog(String title, String content) {
         Alert alert = new Alert(Alert.AlertType.ERROR);
         alert.setTitle(title);
@@ -887,4 +909,14 @@ public class AppController implements Initializable {
     public void exchangeRatesUpdated(ExchangeRatesUpdatedEvent event) {
         fiatCurrencyExchangeRate = event.getCurrencyRate();
     }
+
+    @Subscribe
+    public void requestOpenWallets(RequestOpenWalletsEvent event) {
+        EventManager.get().post(new OpenWalletsEvent(getOpenWallets()));
+    }
+
+    @Subscribe
+    public void requestWalletOpen(RequestWalletOpenEvent event) {
+        openWallet(null);
+    }
 }

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

@@ -0,0 +1,22 @@
+package com.sparrowwallet.sparrow.event;
+
+import com.sparrowwallet.drongo.psbt.PSBT;
+import com.sparrowwallet.drongo.wallet.Wallet;
+
+public class FinalizePSBTEvent {
+    private final PSBT psbt;
+    private final Wallet signingWallet;
+
+    public FinalizePSBTEvent(PSBT psbt, Wallet signingWallet) {
+        this.psbt = psbt;
+        this.signingWallet = signingWallet;
+    }
+
+    public PSBT getPsbt() {
+        return psbt;
+    }
+
+    public Wallet getSigningWallet() {
+        return signingWallet;
+    }
+}

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

@@ -0,0 +1,17 @@
+package com.sparrowwallet.sparrow.event;
+
+import com.sparrowwallet.drongo.wallet.Wallet;
+
+import java.util.List;
+
+public class OpenWalletsEvent {
+    private final List<Wallet> wallets;
+
+    public OpenWalletsEvent(List<Wallet> wallets) {
+        this.wallets = wallets;
+    }
+
+    public List<Wallet> getWallets() {
+        return wallets;
+    }
+}

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

@@ -0,0 +1,5 @@
+package com.sparrowwallet.sparrow.event;
+
+public class RequestOpenWalletsEvent {
+    //Empty event class used to request a List of opened wallets
+}

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

@@ -0,0 +1,5 @@
+package com.sparrowwallet.sparrow.event;
+
+public class RequestWalletOpenEvent {
+    //Empty event class used to request the wallet open dialog
+}

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

@@ -26,6 +26,7 @@ public class FontAwesome5 extends GlyphFont {
         LAPTOP('\uf109'),
         LOCK('\uf023'),
         LOCK_OPEN('\uf3c1'),
+        PEN_FANCY('\uf5ac'),
         QUESTION_CIRCLE('\uf059'),
         SD_CARD('\uf7c2'),
         SEARCH('\uf002'),

src/main/java/com/sparrowwallet/sparrow/transaction/HeadersController.java

@@ -1,19 +1,17 @@
 package com.sparrowwallet.sparrow.transaction;
 
-import com.sparrowwallet.drongo.protocol.Sha256Hash;
-import com.sparrowwallet.drongo.protocol.Transaction;
-import com.sparrowwallet.drongo.protocol.TransactionInput;
-import com.sparrowwallet.drongo.protocol.TransactionOutput;
+import com.sparrowwallet.drongo.protocol.*;
+import com.sparrowwallet.drongo.psbt.PSBT;
+import com.sparrowwallet.drongo.psbt.PSBTInput;
 import com.sparrowwallet.drongo.wallet.BlockTransaction;
+import com.sparrowwallet.drongo.wallet.Wallet;
 import com.sparrowwallet.sparrow.AppController;
 import com.sparrowwallet.sparrow.EventManager;
 import com.sparrowwallet.sparrow.control.CoinLabel;
 import com.sparrowwallet.sparrow.control.IdLabel;
 import com.sparrowwallet.sparrow.control.CopyableLabel;
-import com.sparrowwallet.sparrow.event.BitcoinUnitChangedEvent;
-import com.sparrowwallet.sparrow.event.BlockTransactionFetchedEvent;
-import com.sparrowwallet.sparrow.event.TransactionChangedEvent;
-import com.sparrowwallet.sparrow.event.TransactionLocktimeChangedEvent;
+import com.sparrowwallet.sparrow.event.*;
+import javafx.collections.FXCollections;
 import javafx.event.ActionEvent;
 import javafx.fxml.FXML;
 import javafx.fxml.Initializable;
@@ -29,8 +27,10 @@ import tornadofx.control.Form;
 import java.net.URL;
 import java.text.SimpleDateFormat;
 import java.time.*;
+import java.util.List;
 import java.util.Map;
 import java.util.ResourceBundle;
+import java.util.stream.Collectors;
 
 public class HeadersController extends TransactionFormController implements Initializable {
     public static final String LOCKTIME_DATE_FORMAT = "yyyy-MM-dd HH:mm:ss";
@@ -107,6 +107,30 @@ public class HeadersController extends TransactionFormController implements Init
     @FXML
     private IdLabel blockHash;
 
+    @FXML
+    private Form finalizeForm;
+
+    @FXML
+    private ComboBox<Wallet> signingWallet;
+
+    @FXML
+    private Label noWalletsWarning;
+
+    @FXML
+    private Hyperlink noWalletsWarningLink;
+
+    @FXML
+    private ComboBox<SigHash> sigHash;
+
+    @FXML
+    private Button finalizeTransaction;
+
+    @FXML
+    private Form signaturesForm;
+
+    @FXML
+    private Form broadcastForm;
+
     @Override
     public void initialize(URL location, ResourceBundle resources) {
         EventManager.get().register(this);
@@ -237,10 +261,49 @@ public class HeadersController extends TransactionFormController implements Init
         }
 
         blockchainForm.managedProperty().bind(blockchainForm.visibleProperty());
+        finalizeForm.managedProperty().bind(finalizeForm.visibleProperty());
+        signaturesForm.managedProperty().bind(signaturesForm.visibleProperty());
+        broadcastForm.managedProperty().bind(broadcastForm.visibleProperty());
+
+        blockchainForm.setVisible(false);
+        finalizeForm.setVisible(false);
+        signaturesForm.setVisible(false);
+        broadcastForm.setVisible(false);
+
         if(headersForm.getBlockTransaction() != null) {
+            blockchainForm.setVisible(true);
             updateBlockchainForm(headersForm.getBlockTransaction());
-        } else {
-            blockchainForm.setVisible(false);
+        } else if(headersForm.getPsbt() != null) {
+            PSBT psbt = headersForm.getPsbt();
+
+            if(headersForm.isEditable()) {
+                finalizeForm.setVisible(true);
+            } else if(headersForm.getPsbt().isSigned()) {
+                broadcastForm.setVisible(true);
+            } else {
+                signaturesForm.setVisible(true);
+            }
+
+            signingWallet.valueProperty().addListener((observable, oldValue, newValue) -> headersForm.setSigningWallet(newValue));
+            EventManager.get().post(new RequestOpenWalletsEvent());
+
+            signingWallet.managedProperty().bind(signingWallet.visibleProperty());
+            noWalletsWarning.managedProperty().bind(noWalletsWarning.visibleProperty());
+            noWalletsWarningLink.managedProperty().bind(noWalletsWarningLink.visibleProperty());
+            noWalletsWarningLink.visibleProperty().bind(noWalletsWarning.visibleProperty());
+
+            SigHash psbtSigHash = SigHash.ALL;
+            for(PSBTInput psbtInput : psbt.getPsbtInputs()) {
+                if(psbtInput.getSigHash() != null) {
+                    psbtSigHash = psbtInput.getSigHash();
+                }
+            }
+            sigHash.setValue(psbtSigHash);
+            sigHash.valueProperty().addListener((observable, oldValue, newValue) -> {
+                for(PSBTInput psbtInput : psbt.getPsbtInputs()) {
+                    psbtInput.setSigHash(newValue);
+                }
+            });
         }
     }
 
@@ -331,6 +394,14 @@ public class HeadersController extends TransactionFormController implements Init
         Clipboard.getSystemClipboard().setContent(content);
     }
 
+    public void openWallet(ActionEvent event) {
+        EventManager.get().post(new RequestWalletOpenEvent());
+    }
+
+    public void finalizeTransaction(ActionEvent event) {
+        EventManager.get().post(new FinalizePSBTEvent(headersForm.getPsbt(), headersForm.getSigningWallet()));
+    }
+
     @Subscribe
     public void transactionChanged(TransactionChangedEvent event) {
         if(headersForm.getTransaction().equals(event.getTransaction())) {
@@ -362,4 +433,41 @@ public class HeadersController extends TransactionFormController implements Init
     public void bitcoinUnitChanged(BitcoinUnitChangedEvent event) {
         fee.refresh(event.getBitcoinUnit());
     }
+
+    @Subscribe
+    public void openWallets(OpenWalletsEvent event) {
+        if(headersForm.getPsbt() != null && headersForm.isEditable()) {
+            List<Wallet> availableWallets = event.getWallets().stream().filter(wallet -> wallet.canSign(headersForm.getPsbt())).collect(Collectors.toList());
+            signingWallet.setItems(FXCollections.observableList(availableWallets));
+            if(!availableWallets.isEmpty()) {
+                if(availableWallets.contains(headersForm.getSigningWallet())) {
+                    signingWallet.setValue(headersForm.getSigningWallet());
+                } else {
+                    signingWallet.setValue(availableWallets.get(0));
+                }
+                noWalletsWarning.setVisible(false);
+                signingWallet.setVisible(true);
+                finalizeTransaction.setDisable(false);
+            } else {
+                noWalletsWarning.setVisible(true);
+                signingWallet.setVisible(false);
+                finalizeTransaction.setDisable(true);
+            }
+        }
+    }
+
+    @Subscribe
+    public void finalizePSBT(FinalizePSBTEvent event) {
+        if(headersForm.getPsbt() == event.getPsbt()) {
+            version.setDisable(true);
+            locktimeNoneType.setDisable(true);
+            locktimeBlockType.setDisable(true);
+            locktimeDateType.setDisable(true);
+            locktimeBlock.setDisable(true);
+            locktimeDate.setDisable(true);
+
+            finalizeForm.setVisible(false);
+            signaturesForm.setVisible(true);
+        }
+    }
 }

src/main/java/com/sparrowwallet/sparrow/transaction/InputController.java

@@ -500,4 +500,17 @@ public class InputController extends TransactionFormController implements Initia
     public void bitcoinUnitChanged(BitcoinUnitChangedEvent event) {
         spends.refresh(event.getBitcoinUnit());
     }
+
+    @Subscribe
+    public void finalizePSBT(FinalizePSBTEvent event) {
+        if(inputForm.getPsbt() == event.getPsbt()) {
+            rbf.setDisable(true);
+            locktimeNoneType.setDisable(true);
+            locktimeAbsoluteType.setDisable(true);
+            locktimeRelativeType.setDisable(true);
+            locktimeRelativeBlocks.setDisable(true);
+            locktimeRelativeSeconds.setDisable(true);
+            locktimeRelativeCombo.setDisable(true);
+        }
+    }
 }

src/main/java/com/sparrowwallet/sparrow/transaction/TransactionData.java

@@ -4,6 +4,7 @@ import com.sparrowwallet.drongo.protocol.Sha256Hash;
 import com.sparrowwallet.drongo.protocol.Transaction;
 import com.sparrowwallet.drongo.psbt.PSBT;
 import com.sparrowwallet.drongo.wallet.BlockTransaction;
+import com.sparrowwallet.drongo.wallet.Wallet;
 
 import java.util.List;
 import java.util.Map;
@@ -20,6 +21,8 @@ public class TransactionData {
     private int minOutputFetched;
     private int maxOutputFetched;
 
+    private Wallet signingWallet;
+
     public TransactionData(PSBT psbt) {
         this.transaction = psbt.getTransaction();
         this.psbt = psbt;
@@ -109,4 +112,12 @@ public class TransactionData {
     public boolean allOutputsFetched() {
         return minOutputFetched == 0 && maxOutputFetched == transaction.getOutputs().size();
     }
+
+    public Wallet getSigningWallet() {
+        return signingWallet;
+    }
+
+    public void setSigningWallet(Wallet signingWallet) {
+        this.signingWallet = signingWallet;
+    }
 }

src/main/java/com/sparrowwallet/sparrow/transaction/TransactionForm.java

@@ -4,6 +4,7 @@ import com.sparrowwallet.drongo.protocol.Sha256Hash;
 import com.sparrowwallet.drongo.protocol.Transaction;
 import com.sparrowwallet.drongo.psbt.PSBT;
 import com.sparrowwallet.drongo.wallet.BlockTransaction;
+import com.sparrowwallet.drongo.wallet.Wallet;
 import javafx.scene.Node;
 
 import java.io.IOException;
@@ -53,8 +54,27 @@ public abstract class TransactionForm {
         return txdata.allOutputsFetched();
     }
 
+    public Wallet getSigningWallet() {
+        return txdata.getSigningWallet();
+    }
+
+    public void setSigningWallet(Wallet signingWallet) {
+        txdata.setSigningWallet(signingWallet);
+    }
+
     public boolean isEditable() {
-        return txdata.getBlockTransaction() == null;
+        if(getBlockTransaction() != null) {
+            return false;
+        }
+
+        if(getPsbt() != null) {
+            if(getPsbt().hasSignatures() || getPsbt().isSigned()) {
+                return false;
+            }
+            return txdata.getSigningWallet() == null;
+        }
+
+        return true;
     }
 
     public abstract Node getContents() throws IOException;