qml: add InfoTextArea about PressAndHold

electrum/gui/qml/components/Invoices.qml

@@ -14,6 +14,13 @@ Pane {
     ColumnLayout {
         anchors.fill: parent
 
+        InfoTextArea {
+            Layout.fillWidth: true
+            Layout.bottomMargin: constants.paddingLarge
+            visible: !Daemon.currentWallet.userKnowsPressAndHold
+            text: qsTr('To access this list from the main screen, press and hold the Send button')
+        }
+
         Heading {
             text: qsTr('Saved Invoices')
         }

electrum/gui/qml/components/ReceiveRequests.qml

@@ -17,6 +17,13 @@ Pane {
     ColumnLayout {
         anchors.fill: parent
 
+        InfoTextArea {
+            Layout.fillWidth: true
+            Layout.bottomMargin: constants.paddingLarge
+            visible: !Daemon.currentWallet.userKnowsPressAndHold
+            text: qsTr('To access this list from the main screen, press and hold the Receive button')
+        }
+
         Heading {
             text: qsTr('Pending requests')
         }

electrum/gui/qml/components/WalletMainView.qml

@@ -192,6 +192,7 @@ Item {
                     dialog.open()
                 }
                 onPressAndHold: {
+                    Daemon.currentWallet.userKnowsPressAndHold = true
                     Daemon.currentWallet.delete_expired_requests()
                     app.stack.push(Qt.resolvedUrl('ReceiveRequests.qml'))
                 }
@@ -204,6 +205,7 @@ Item {
                 text: qsTr('Send')
                 onClicked: openSendDialog()
                 onPressAndHold: {
+                    Daemon.currentWallet.userKnowsPressAndHold = true
                     app.stack.push(Qt.resolvedUrl('Invoices.qml'))
                 }
             }

electrum/gui/qml/qewallet.py

@@ -125,9 +125,18 @@ class QEWallet(AuthMixin, QObject, QtEventListener):
 
         self.register_callbacks()
         self.destroyed.connect(lambda: self.on_destroy())
-
+        self._user_knows_press_and_hold = False # maybe save in config?
         self.synchronizing = not wallet.is_up_to_date()
 
+    userKnowsPressAndHoldChanged = pyqtSignal()
+    @pyqtProperty(bool, notify=userKnowsPressAndHoldChanged)
+    def userKnowsPressAndHold(self):
+        return self._user_knows_press_and_hold
+
+    @userKnowsPressAndHold.setter
+    def userKnowsPressAndHold(self, userKnowsPressAndHold):
+        self._user_knows_press_and_hold = userKnowsPressAndHold
+
     synchronizingChanged = pyqtSignal()
     @pyqtProperty(bool, notify=synchronizingChanged)
     def synchronizing(self):
@@ -629,7 +638,6 @@ class QEWallet(AuthMixin, QObject, QtEventListener):
                 elif lightning_only:
                     addr = None
                 else:
-                    has_lightning = self.wallet.has_lightning()
                     msg = [
                         _('No address available.'),
                         _('All your addresses are used in pending requests.'),