qml: port over 'show_qr to warn if QR code is missing data'

electrum/gui/qml/components/ExportTxDialog.qml

@@ -12,6 +12,7 @@ ElDialog {
     property string text_qr
     // if text_qr is undefined text will be used
     property string text_help
+    property string text_warn
 
     title: qsTr('Share Transaction')
 
@@ -55,6 +56,17 @@ ElDialog {
                     visible: dialog.text_help
                     text: dialog.text_help
                 }
+
+                InfoTextArea {
+                    Layout.fillWidth: true
+                    Layout.margins: constants.paddingLarge
+                    Layout.topMargin: dialog.text_help
+                        ? 0
+                        : constants.paddingLarge
+                    visible: dialog.text_warn
+                    text: dialog.text_warn
+                    iconStyle: InfoTextArea.IconStyle.Warn
+                }
             }
         }
 

electrum/gui/qml/components/TxDetails.qml

@@ -374,6 +374,7 @@ Pane {
                 onClicked: {
                     var msg = ''
                     if (txdetails.isComplete) {
+                        if (!txdetails.isMined && !txdetails.mempoolDepth) // local
                             // TODO: iff offline wallet?
                             // TODO: or also if just temporarily offline?
                             msg = qsTr('This transaction is complete. Please share it with an online device')
@@ -387,7 +388,7 @@ Pane {
                         }
                     }
 
-                    app.stack.getRoot().showExport(txdetails.getSerializedTx(false), txdetails.getSerializedTx(true), msg)
+                    app.stack.getRoot().showExport(txdetails.getSerializedTx(), msg)
                 }
             }
 

electrum/gui/qml/components/WalletMainView.qml

@@ -51,14 +51,17 @@ Item {
     }
 
     function showExportByTxid(txid, helptext) {
-        showExport(Daemon.currentWallet.getSerializedTx(txid, false), Daemon.currentWallet.getSerializedTx(txid, true), helptext)
+        showExport(Daemon.currentWallet.getSerializedTx(txid), helptext)
     }
 
-    function showExport(data, data_qr, helptext) {
+    function showExport(data, helptext) {
         var dialog = exportTxDialog.createObject(app, {
-            text: data,
-            text_qr: data_qr,
-            text_help: helptext
+            text: data[0],
+            text_qr: data[1],
+            text_help: helptext,
+            text_warn: data[2]
+                ? ''
+                : qsTr('Warning: Some data (prev txs / "full utxos") was left out of the QR code as it would not fit. This might cause issues if signing offline. As a workaround, try exporting the tx as file or text instead.')
         })
         dialog.open()
     }

electrum/gui/qml/qetxdetails.py

@@ -391,11 +391,7 @@ class QETxDetails(QObject, QtEventListener):
             self._can_remove = True
             self.detailsChanged.emit()
 
-    @pyqtSlot(result=str)
-    @pyqtSlot(bool, result=str)
-    def getSerializedTx(self, for_qr=False):
-        tx = self._tx
-        if for_qr:
-            return tx.to_qr_data()[0]
-        else:
-            return str(tx)
+    @pyqtSlot(result='QVariantList')
+    def getSerializedTx(self):
+        txqr = self._tx.to_qr_data()
+        return [str(self._tx), txqr[0], txqr[1]]

electrum/gui/qml/qewallet.py

@@ -728,11 +728,8 @@ class QEWallet(AuthMixin, QObject, QtEventListener):
 
         self.dataChanged.emit()
 
-    @pyqtSlot(str, result=str)
-    @pyqtSlot(str, bool, result=str)
-    def getSerializedTx(self, txid, for_qr=False):
+    @pyqtSlot(str, result='QVariantList')
+    def getSerializedTx(self, txid):
         tx = self.wallet.db.get_transaction(txid)
-        if for_qr:
-            return tx.to_qr_data()[0]
-        else:
-            return str(tx)
+        txqr = tx.to_qr_data()
+        return [str(tx), txqr[0], txqr[1]]