qml: add save Tx option

electrum/gui/qml/components/TxDetails.qml

@@ -353,8 +353,10 @@ Pane {
             }
         }
 
+        RowLayout {
             FlatButton {
                 Layout.fillWidth: true
+                Layout.preferredWidth: 1
                 text: qsTr('Export')
                 onClicked: {
                     var dialog = exportTxDialog.createObject(root, { txdetails: txdetails })
@@ -364,20 +366,30 @@ Pane {
 
             FlatButton {
                 Layout.fillWidth: true
-            text: qsTr('Bump fee')
-            visible: txdetails.canBump
-            onClicked: {
-                var dialog = bumpFeeDialog.createObject(root, { txid: root.txid })
-                dialog.open()
-            }
+                Layout.preferredWidth: 1
+                text: qsTr('Save')
+                visible: txdetails.canSaveAsLocal
+                onClicked: txdetails.save()
             }
 
             FlatButton {
                 Layout.fillWidth: true
+                Layout.preferredWidth: 1
                 text: qsTr('Remove')
                 visible: txdetails.canRemove
                 onClicked: txdetails.removeLocalTx()
             }
+        }
+
+        FlatButton {
+            Layout.fillWidth: true
+            text: qsTr('Bump fee')
+            visible: txdetails.canBump
+            onClicked: {
+                var dialog = bumpFeeDialog.createObject(root, { txid: root.txid })
+                dialog.open()
+            }
+        }
 
     }
 
@@ -397,6 +409,19 @@ Pane {
             })
             dialog.open()
         }
+        onSaveTxSuccess: {
+            var dialog = app.messageDialog.createObject(app, {
+                'text': qsTr('Transaction added to wallet history.') + '\n\n' +
+                        qsTr('Note: this is an offline transaction, if you want the network to see it, you need to broadcast it.')
+            })
+            dialog.open()
+        }
+        onSaveTxError: {
+            var dialog = app.messageDialog.createObject(app, {
+                'text': message
+            })
+            dialog.open()
+        }
     }
 
     Component {

electrum/gui/qml/qetxdetails.py

@@ -49,6 +49,8 @@ class QETxDetails(QObject):
     _header_hash = ''
 
     confirmRemoveLocalTx = pyqtSignal([str], arguments=['message'])
+    saveTxError = pyqtSignal([str,str], arguments=['code', 'message'])
+    saveTxSuccess = pyqtSignal()
 
     detailsChanged = pyqtSignal()
 
@@ -89,9 +91,9 @@ class QETxDetails(QObject):
                 return
             try:
                 self._tx = tx_from_any(rawtx, deserialize=True)
-                self._logger.debug('tx type is %s' % str(type(self._tx)))
                 self.txid = self._tx.txid() # triggers update()
             except Exception as e:
+                self._tx = None
                 self._logger.error(repr(e))
 
     labelChanged = pyqtSignal()
@@ -209,6 +211,9 @@ class QETxDetails(QObject):
 
         #self._logger.debug(repr(self._tx.to_json()))
 
+        self._logger.debug('adding info from wallet')
+        self._tx.add_info_from_wallet(self._wallet.wallet)
+
         self._inputs = list(map(lambda x: x.to_json(), self._tx.inputs()))
         self._outputs = list(map(lambda x: {
             'address': x.get_ui_address_str(),
@@ -251,7 +256,7 @@ class QETxDetails(QObject):
         self._can_dscancel = txinfo.can_dscancel
         self._can_broadcast = txinfo.can_broadcast
         self._can_cpfp = txinfo.can_cpfp
-        self._can_save_as_local = txinfo.can_save_as_local
+        self._can_save_as_local = txinfo.can_save_as_local and not txinfo.can_remove
         self._can_remove = txinfo.can_remove
         self._can_sign = not self._is_complete and self._wallet.wallet.can_sign(self._tx)
 
@@ -332,6 +337,25 @@ class QETxDetails(QObject):
         self._wallet.wallet.adb.remove_transaction(txid)
         self._wallet.wallet.save_db()
 
+    @pyqtSlot()
+    def save(self):
+        if not self._tx:
+            return
+
+        try:
+            if not self._wallet.wallet.adb.add_transaction(self._tx):
+                self.saveTxError.emit('conflict',
+                        _("Transaction could not be saved.") + "\n" + _("It conflicts with current history."))
+                return
+            self._wallet.wallet.save_db()
+            self.saveTxSuccess.emit()
+        except AddTransactionException as e:
+            self.saveTxError.emit('error', str(e))
+        finally:
+            self._can_save_as_local = False
+            self._can_remove = True
+            self.detailsChanged.emit()
+
     @pyqtSlot(result=str)
     @pyqtSlot(bool, result=str)
     def serializedTx(self, for_qr=False):