Confirmation popup to clear messages

src/qml/Chat/ClearMessagesPopup.qml

@@ -0,0 +1,16 @@
+import QtQuick 2.12
+import "../Base"
+
+HOkCancelPopup {
+    text: qsTr(
+        "Clear this room's messages?\n" +
+        "The messages will only be removed on your side. " +
+        "They will be available again after you restart the application."
+    )
+
+    onOk: py.callClientCoro(userId, "clear_events", [roomId])
+
+
+    property string userId: ""
+    property string roomId: ""
+}

src/qml/Chat/Timeline/EventDelegate.qml

@@ -127,8 +127,10 @@ Column {
         HMenuItem {
             icon.name: "clear-messages"
             text: qsTr("Clear messages")
-            onTriggered: py.callClientCoro(
-                chatPage.userId, "clear_events", [chatPage.roomId],
+            onTriggered: Utils.makePopup(
+                "Chat/ClearMessagesPopup.qml",
+                chatPage,
+                {userId: chatPage.userId, roomId: chatPage.roomId},
             )
         }