qml: enable send for watch-only wallets, show raw tx dialog after finalizing

also use QEAMount setters in qetxfinalizer instead of re-instantiating

electrum/gui/qml/components/ConfirmTxDialog.qml

@@ -224,7 +224,7 @@ ElDialog {
                 }
             }
         }
-        
+
         Rectangle {
             height: 1
             Layout.fillWidth: true
@@ -248,11 +248,13 @@ ElDialog {
 
             Button {
                 id: sendButton
-                text: qsTr('Pay')
+                text: Daemon.currentWallet.isWatchOnly ? qsTr('Finalize') : qsTr('Pay')
                 enabled: finalizer.valid
                 onClicked: {
                     txaccepted()
-                    finalizer.send_onchain()
+                    if (!Daemon.currentWallet.isWatchOnly) {
+                        finalizer.send_onchain()
+                    }
                     dialog.close()
                 }
             }

electrum/gui/qml/components/GenericShareDialog.qml

@@ -13,7 +13,7 @@ ElDialog {
     title: ''
     parent: Overlay.overlay
     modal: true
-    standardButtons: Dialog.Ok
+    standardButtons: Dialog.Close
 
     width: parent.width
     height: parent.height
@@ -86,7 +86,6 @@ ElDialog {
                     onClicked: AppController.textToClipboard(dialog.text)
                 }
                 Button {
-                    //enabled: false
                     text: qsTr('Share')
                     icon.source: '../../icons/share.png'
                     onClicked: {

electrum/gui/qml/components/Send.qml

@@ -18,6 +18,13 @@ Pane {
         is_max.checked = false
     }
 
+    function showUnsignedTx(tx) {
+        var dialog = app.genericShareDialog.createObject(rootItem,
+            { title: qsTr('Raw Transaction'), text: tx }
+        )
+        dialog.open()
+    }
+
     GridLayout {
         id: form
         width: parent.width
@@ -162,6 +169,9 @@ Pane {
                     dialog.txaccepted.connect(function() {
                         userEnteredPayment.clear()
                         rootItem.clear()
+                        if (Daemon.currentWallet.isWatchOnly) {
+                            showUnsignedTx(dialog.finalizer.serializedTx())
+                        }
                     })
                     dialog.open()
                 }
@@ -268,6 +278,11 @@ Pane {
                             'satoshis': invoice.amount,
                             'message': invoice.message
                     })
+                    dialog.txaccepted.connect(function() {
+                        if (Daemon.currentWallet.isWatchOnly) {
+                            showUnsignedTx(dialog.finalizer.serializedTx())
+                        }
+                    })
                     dialog.open()
                 } else if (invoice.invoiceType == Invoice.LightningInvoice) {
                     console.log('About to pay lightning invoice')

electrum/gui/qml/components/WalletMainView.qml

@@ -123,7 +123,6 @@ Item {
 
 
             Item {
-                enabled: !Daemon.currentWallet.isWatchOnly
                 Loader {
                     anchors.fill: parent
                     Send {
@@ -148,7 +147,6 @@ Item {
                 font.pixelSize: constants.fontSizeLarge
             }
             TabButton {
-                enabled: !Daemon.currentWallet.isWatchOnly
                 text: qsTr('Send')
                 font.pixelSize: constants.fontSizeLarge
             }

electrum/gui/qml/components/main.qml

@@ -186,6 +186,14 @@ ApplicationWindow
         }
     }
 
+    property alias genericShareDialog: _genericShareDialog
+    Component {
+        id: _genericShareDialog
+        GenericShareDialog {
+            onClosed: destroy()
+        }
+    }
+
     property alias channelOpenProgressDialog: _channelOpenProgressDialog
     ChannelOpenProgressDialog {
         id: _channelOpenProgressDialog

electrum/gui/qml/qetxfinalizer.py

@@ -273,14 +273,14 @@ class QETxFinalizer(QObject):
 
         amount = self._amount.satsInt if not self._amount.isMax else tx.output_value()
 
-        self._effectiveAmount = QEAmount(amount_sat=amount)
+        self._effectiveAmount.satsInt = amount
         self.effectiveAmountChanged.emit()
 
         tx_size = tx.estimated_size()
         fee = tx.get_fee()
         feerate = Decimal(fee) / tx_size  # sat/byte
 
-        self.fee = QEAmount(amount_sat=fee)
+        self.fee.satsInt = fee
         self.feeRate = f'{feerate:.1f}'
 
         #TODO
@@ -310,3 +310,7 @@ class QETxFinalizer(QObject):
             return
 
         self._wallet.sign_and_broadcast(self._tx)
+
+    @pyqtSlot(result=str)
+    def serializedTx(self):
+        return str(self._tx)