qml TxDetails: show short_id instead of block height and txpos

The "TX index" (txpos) item I think was confusing.

electrum/gui/qml/components/TxDetails.qml

@@ -207,24 +207,13 @@ Pane {
 
                     Label {
                         visible: txdetails.isMined
-                        text: qsTr('Height')
+                        text: qsTr('Mined at')
                         color: Material.accentColor
                     }
 
                     Label {
                         visible: txdetails.isMined
-                        text: txdetails.height
-                    }
-
-                    Label {
-                        visible: txdetails.isMined
-                        text: qsTr('TX index')
-                        color: Material.accentColor
-                    }
-
-                    Label {
-                        visible: txdetails.isMined
-                        text: txdetails.txpos
+                        text: txdetails.shortId
                     }
 
                     Label {

electrum/gui/qml/qetxdetails.py

@@ -4,7 +4,7 @@ from PyQt5.QtCore import pyqtProperty, pyqtSignal, pyqtSlot, QObject
 
 from electrum.i18n import _
 from electrum.logging import get_logger
-from electrum.util import format_time, AddTransactionException
+from electrum.util import format_time, AddTransactionException, TxMinedInfo
 from electrum.transaction import tx_from_any
 from electrum.network import Network
 
@@ -56,10 +56,9 @@ class QETxDetails(QObject, QtEventListener):
         self._mempool_depth = ''
 
         self._date = ''
-        self._height = 0
         self._confirmations = 0
-        self._txpos = -1
         self._header_hash = ''
+        self._short_id = ""
 
     def on_destroy(self):
         self.unregister_callbacks()
@@ -166,17 +165,13 @@ class QETxDetails(QObject, QtEventListener):
     def date(self):
         return self._date
 
-    @pyqtProperty(int, notify=detailsChanged)
-    def height(self):
-        return self._height
-
     @pyqtProperty(int, notify=detailsChanged)
     def confirmations(self):
         return self._confirmations
 
-    @pyqtProperty(int, notify=detailsChanged)
-    def txpos(self):
-        return self._txpos
+    @pyqtProperty(str, notify=detailsChanged)
+    def shortId(self):
+        return self._short_id
 
     @pyqtProperty(str, notify=detailsChanged)
     def headerHash(self):
@@ -296,13 +291,12 @@ class QETxDetails(QObject, QtEventListener):
             self._label = txinfo.label
             self.labelChanged.emit()
 
-    def update_mined_status(self, tx_mined_info):
+    def update_mined_status(self, tx_mined_info: TxMinedInfo):
         self._mempool_depth = ''
         self._date = format_time(tx_mined_info.timestamp)
-        self._height = tx_mined_info.height
         self._confirmations = tx_mined_info.conf
-        self._txpos = tx_mined_info.txpos
         self._header_hash = tx_mined_info.header_hash
+        self._short_id = tx_mined_info.short_id() or ""
 
     @pyqtSlot()
     @pyqtSlot(bool)

electrum/util.py

@@ -1299,6 +1299,12 @@ class TxMinedInfo(NamedTuple):
     header_hash: Optional[str] = None  # hash of block that mined tx
     wanted_height: Optional[int] = None  # in case of timelock, min abs block height
 
+    def short_id(self) -> Optional[str]:
+        if self.txpos is not None and self.txpos >= 0:
+            assert self.height > 0
+            return f"{self.height}x{self.txpos}"
+        return None
+
 
 class ShortID(bytes):