qml: txdetails: add lockDelay property when height is TX_HEIGHT_FUTURE and add mempool depth for height TX_HEIGHT_UNCONF_PARENT

electrum/gui/qml/components/TxDetails.qml

@@ -58,7 +58,9 @@ Pane {
                         text: txdetails.isUnrelated
                             ? qsTr('Transaction is unrelated to this wallet')
                             : txdetails.canRemove
-                                ? qsTr('This transaction is local to your wallet. It has not been published yet.')
+                                ? txdetails.lockDelay
+                                    ? qsTr('This transaction is local to your wallet and locked for the next %1 blocks.').arg(txdetails.lockDelay)
+                                    : qsTr('This transaction is local to your wallet. It has not been published yet.')
                                 : qsTr('This transaction is still unconfirmed.') + '\n' + (txdetails.canCancel
                                     ? qsTr('You can bump its fee to speed up its confirmation, or cancel this transaction')
                                     : qsTr('You can bump its fee to speed up its confirmation'))
@@ -343,6 +345,7 @@ Pane {
                 icon.source: '../../icons/microphone.png'
                 text: qsTr('Broadcast')
                 visible: txdetails.canBroadcast
+                enabled: !txdetails.lockDelay
                 onClicked: txdetails.broadcast()
             }
 
@@ -356,9 +359,13 @@ Pane {
                     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')
+                            if (txdetails.lockDelay) {
+                                msg = qsTr('This transaction is fully signed, but can only be broadcast after %1 blocks.').arg(txdetails.lockDelay)
+                            } else {
+                                // TODO: iff offline wallet?
+                                // TODO: or also if just temporarily offline?
+                                msg = qsTr('This transaction is fully signed, but has not been broadcast yet.')
+                            }
                     } else if (txdetails.wallet.isWatchOnly) {
                         msg = qsTr('This transaction should be signed. Present this QR code to the signing device')
                     } else if (txdetails.wallet.isMultisig && txdetails.wallet.walletType != '2fa') {

electrum/gui/qml/qetxdetails.py

@@ -7,6 +7,7 @@ from electrum.logging import get_logger
 from electrum.util import format_time, TxMinedInfo
 from electrum.transaction import tx_from_any, Transaction
 from electrum.network import Network
+from electrum.address_synchronizer import TX_HEIGHT_UNCONF_PARENT, TX_HEIGHT_UNCONFIRMED, TX_HEIGHT_FUTURE
 
 from .qewallet import QEWallet
 from .qetypes import QEAmount
@@ -54,6 +55,7 @@ class QETxDetails(QObject, QtEventListener):
         self._is_complete = False
         self._is_mined = False
         self._is_final = False
+        self._lock_delay = 0
 
         self._mempool_depth = ''
 
@@ -234,6 +236,10 @@ class QETxDetails(QObject, QtEventListener):
     def isFinal(self):
         return self._is_final
 
+    @pyqtProperty(int, notify=detailsChanged)
+    def lockDelay(self):
+        return self._lock_delay
+
     def update(self, from_txid: bool = False):
         assert self._wallet
 
@@ -278,11 +284,15 @@ class QETxDetails(QObject, QtEventListener):
             fee_per_kb = txinfo.fee / size * 1000
             self._feerate_str = self._wallet.wallet.config.format_fee_rate(fee_per_kb)
 
+        self._lock_delay = 0
         self._is_mined = False if not txinfo.tx_mined_status else txinfo.tx_mined_status.height > 0
         if self._is_mined:
             self.update_mined_status(txinfo.tx_mined_status)
-        elif txinfo.tx_mined_status.height == 0:
-            self._mempool_depth = self._wallet.wallet.config.depth_tooltip(txinfo.mempool_depth_bytes)
+        else:
+            if txinfo.tx_mined_status.height in [TX_HEIGHT_UNCONFIRMED, TX_HEIGHT_UNCONF_PARENT]:
+                self._mempool_depth = self._wallet.wallet.config.depth_tooltip(txinfo.mempool_depth_bytes)
+            elif txinfo.tx_mined_status.height == TX_HEIGHT_FUTURE:
+                self._lock_delay = txinfo.tx_mined_status.wanted_height - self._wallet.wallet.adb.get_local_height()
 
         if self._wallet.wallet.lnworker:
             # Calling lnworker.get_onchain_history and wallet.get_full_history here