Issue 18: add PSBT operations page with import/sign/finalize/broadcast

Author: johnny9

doc/test-automation-selectors.md

@@ -22,7 +22,8 @@ It supports the parity backlog Definition of Done (`DefinitionOfDone.md`) requir
 ## Current Examples
 
 - Receive flow: `receiveAmountInput`, `receiveLabelInput`, `receiveContactSelectButton`, `receiveContactsPopup`, `receiveContactsSearchInput`, `receiveContactRow`, `receiveContactSelectFirstActionButton`, `receiveContactUseButton`, `receiveCreateAddressButton`, `receiveCopySelectedUriButton`, `receiveQrImage`
-- Send flow: `sendAddressInput`, `sendOpenContactsButton`, `sendContactsPopup`, `sendContactsSearchInput`, `sendContactLabelInput`, `sendContactAddressInput`, `sendContactSaveButton`, `sendContactDeleteButton`, `sendContactUseButton`, `sendContinueButton`, `sendReviewCopyPsbtButton`, `sendReviewSavePsbtButton`, `sendReviewSavePsbtFileDialog`, `sendReviewPsbtStatusText`, `multipleSendReviewCopyPsbtButton`, `multipleSendReviewSavePsbtButton`, `multipleSendReviewSavePsbtFileDialog`, `multipleSendReviewPsbtStatusText`, `sendResultPopup`
+- Send flow: `sendAddressInput`, `sendOpenContactsButton`, `sendContactsPopup`, `sendContactsSearchInput`, `sendContactLabelInput`, `sendContactAddressInput`, `sendContactSaveButton`, `sendContactDeleteButton`, `sendContactUseButton`, `sendContinueButton`, `sendOptionsPsbtOperationsButton`, `sendReviewCopyPsbtButton`, `sendReviewSavePsbtButton`, `sendReviewSavePsbtFileDialog`, `sendReviewPsbtStatusText`, `multipleSendReviewCopyPsbtButton`, `multipleSendReviewSavePsbtButton`, `multipleSendReviewSavePsbtFileDialog`, `multipleSendReviewPsbtStatusText`, `sendResultPopup`
+- PSBT operations flow: `psbtOperationsPage`, `psbtOperationsBackButton`, `psbtImportClipboardButton`, `psbtImportFileButton`, `psbtImportFileDialog`, `psbtWorkflowStatusText`, `psbtInputSummaryText`, `psbtSignButton`, `psbtFinalizeButton`, `psbtBroadcastButton`, `psbtCopyButton`, `psbtSaveButton`, `psbtSaveFileDialog`, `psbtStatusText`, `psbtBroadcastTxidText`
 - Wallet tabs/pages: `walletSendPage`, `walletRequestPaymentPage`, `activityListView`, `activityOpenFirstRowActionButton`, `activityOpenRowAddressInput`, `activityOpenRowByAddressActionButton`, `activityDetailsPage`, `activityDetailsBackButton`
 - Activity RBF actions: `activityDetailsBumpButton`, `activityDetailsBumpPopup`, `activityDetailsBumpPreviewButton`, `activityDetailsBumpConfirmPopup`, `activityDetailsBumpConfirmButton`, `activityDetailsBumpDisabledReasonText`, `activityDetailsCancelButton`, `activityDetailsCancelPopup`, `activityDetailsCancelConfirmButton`, `activityDetailsRbfStatusText`, `activityDetailsReplacementTxidText`
 - Onboarding storage flow: `onboardingStorageAmountDetailedSettingsButton`, `storageSettingsPruneTargetInput`, `storageLocationDefaultOption`

qml/bitcoin_qml.qrc

@@ -40,6 +40,7 @@
         <file>controls/LabeledTextInput.qml</file>
         <file>controls/LabeledCoinControlButton.qml</file>
         <file>controls/EllipsisMenuToggleItem.qml</file>
+        <file>controls/EllipsisMenuActionItem.qml</file>
         <file>controls/NavButton.qml</file>
         <file>controls/NavigationBar.qml</file>
         <file>controls/NavigationBar2.qml</file>
@@ -101,6 +102,7 @@
         <file>pages/wallet/CreateWalletWizard.qml</file>
         <file>pages/wallet/DesktopWallets.qml</file>
         <file>pages/wallet/MultipleSendReview.qml</file>
+        <file>pages/wallet/PsbtOperations.qml</file>
         <file>pages/wallet/RequestPayment.qml</file>
         <file>pages/wallet/Send.qml</file>
         <file>pages/wallet/SendResult.qml</file>

qml/controls/EllipsisMenuActionItem.qml

@@ -0,0 +1,63 @@
+// Copyright (c) 2026 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+import QtQuick 2.15
+import QtQuick.Controls 2.15
+import QtQuick.Layouts 1.15
+import org.bitcoincore.qt 1.0
+
+Button {
+    property int bgRadius: 5
+    property color bgDefaultColor: "transparent"
+    property color bgHoverColor: Theme.color.neutral2
+    property color textColor: Theme.color.neutral7
+    property color textHoverColor: Theme.color.neutral9
+
+    id: root
+    hoverEnabled: AppMode.isDesktop
+
+    implicitWidth: 280
+
+    MouseArea {
+        anchors.fill: parent
+        enabled: false
+        hoverEnabled: true
+        cursorShape: Qt.PointingHandCursor
+    }
+
+    contentItem: RowLayout {
+        spacing: 7
+        anchors.fill: parent
+        anchors.centerIn: parent
+        anchors.margins: 10
+
+        CoreText {
+            id: buttonText
+            Layout.fillWidth: true
+            Layout.alignment: Qt.AlignVCenter
+            horizontalAlignment: Text.AlignLeft
+            font.pixelSize: 15
+            text: root.text
+            color: root.textColor
+        }
+    }
+
+    background: Rectangle {
+        id: bg
+        color: root.bgDefaultColor
+        radius: root.bgRadius
+
+        Behavior on color {
+            ColorAnimation { duration: 150 }
+        }
+    }
+
+    states: [
+        State {
+            name: "HOVER"; when: root.hovered
+            PropertyChanges { target: bg; color: root.bgHoverColor }
+            PropertyChanges { target: buttonText; color: root.textHoverColor }
+        }
+    ]
+}

qml/controls/SendOptionsPopup.qml

@@ -13,12 +13,14 @@ OptionPopup {
     id: root
     objectName: "sendOptionsPopup"
 
+    signal psbtOperationsRequested()
+
     property alias coinControlEnabled: coinControlToggle.checked
     property alias multipleRecipientsEnabled: multipleRecipientsToggle.checked
     property alias customFeeEnabled: customFeeToggle.checked
 
     implicitWidth: 300
-    implicitHeight: 145
+    implicitHeight: 190
 
     clip: true
     modal: true
@@ -59,5 +61,19 @@ OptionPopup {
             Layout.fillWidth: true
             text: qsTr("Enable custom fee")
         }
+
+        Separator {
+            Layout.fillWidth: true
+        }
+
+        EllipsisMenuActionItem {
+            objectName: "sendOptionsPsbtOperationsButton"
+            Layout.fillWidth: true
+            text: qsTr("PSBT operations")
+            onClicked: {
+                root.close()
+                root.psbtOperationsRequested()
+            }
+        }
     }
 }

qml/models/nodemodel.cpp

@@ -7,7 +7,11 @@
 #include <interfaces/node.h>
 #include <net.h>
 #include <node/interface_ui.h>
+#include <node/types.h>
+#include <qml/models/psbtoperationsadapter.h>
+#include <psbt.h>
 #include <validation.h>
+#include <common/messages.h>
 
 #include <cassert>
 #include <chrono>
@@ -190,3 +194,46 @@ QString NodeModel::defaultProxyAddress()
 {
     return QString::fromStdString(std::string(DEFAULT_PROXY_HOST) + ":" + util::ToString(DEFAULT_PROXY_PORT));
 }
+
+QVariantMap NodeModel::broadcastSignedPsbt(const QString& psbt_base64)
+{
+    QVariantMap payload;
+
+    const PsbtDecodeResult decoded = PsbtOperationsAdapter::DecodeClipboardBase64(psbt_base64);
+    if (!decoded.success || !decoded.psbt.has_value()) {
+        payload[QStringLiteral("success")] = false;
+        payload[QStringLiteral("message")] = decoded.message;
+        return payload;
+    }
+
+    PartiallySignedTransaction psbt = *decoded.psbt;
+    CMutableTransaction mtx;
+    if (!FinalizeAndExtractPSBT(psbt, mtx)) {
+        payload[QStringLiteral("success")] = false;
+        payload[QStringLiteral("message")] = tr("Unknown error processing transaction.");
+        return payload;
+    }
+
+    const CTransactionRef tx = MakeTransactionRef(mtx);
+    std::string err_string;
+    const node::TransactionError error = m_node.broadcastTransaction(
+        tx,
+        node::DEFAULT_MAX_RAW_TX_FEE_RATE.GetFeePerK(),
+        err_string);
+
+    if (error == node::TransactionError::OK) {
+        payload[QStringLiteral("success")] = true;
+        payload[QStringLiteral("message")] = tr("Transaction broadcast successfully! Transaction ID: %1")
+            .arg(QString::fromStdString(tx->GetHash().GetHex()));
+        payload[QStringLiteral("txid")] = QString::fromStdString(tx->GetHash().GetHex());
+        return payload;
+    }
+
+    payload[QStringLiteral("success")] = false;
+    payload[QStringLiteral("message")] = tr("Transaction broadcast failed: %1")
+        .arg(QString::fromStdString(common::TransactionErrorString(error).translated));
+    if (!err_string.empty()) {
+        payload[QStringLiteral("details")] = QString::fromStdString(err_string);
+    }
+    return payload;
+}

qml/models/nodemodel.h

@@ -13,6 +13,7 @@
 
 #include <QObject>
 #include <QString>
+#include <QVariantMap>
 
 const char DEFAULT_PROXY_HOST[] = "127.0.0.1";
 constexpr uint16_t DEFAULT_PROXY_PORT = 9050;
@@ -67,6 +68,7 @@ class NodeModel : public QObject
 
     Q_INVOKABLE bool validateProxyAddress(QString addr_port);
     Q_INVOKABLE QString defaultProxyAddress();
+    Q_INVOKABLE QVariantMap broadcastSignedPsbt(const QString& psbt_base64);
 
 public Q_SLOTS:
     void initializeResult(bool success, interfaces::BlockAndHeaderTipInfo tip_info);