Add edited flag to edited messages

Fix #206

imports/NeoChat/Component/Timeline/TextDelegate.qml

@@ -15,7 +15,7 @@ TextEdit {
 
     property bool isEmote: false
 
-    text: "<style>pre {white-space: pre-wrap} a{color: " + Kirigami.Theme.linkColor + ";} .user-pill{}</style>" + (isEmote ? "* <a href='https://matrix.to/#/" + author.id + "' style='color: " + author.color + "'>" + author.displayName + "</a> " : "") + display
+    text: "<style>pre {white-space: pre-wrap} a{color: " + Kirigami.Theme.linkColor + ";} .user-pill{}</style>" + (isEmote ? "* <a href='https://matrix.to/#/" + author.id + "' style='color: " + author.color + "'>" + author.displayName + "</a> " : "") + display + (isEdited ? (" <span style=\"color: " + Kirigami.Theme.disabledTextColor + "\">" + i18n("(edited)") + "</span>") : "")
 
     color: Kirigami.Theme.textColor
     font.pointSize: isEmoji.test(display) ? Kirigami.Theme.defaultFont.pointSize * 4 : Kirigami.Theme.defaultFont.pointSize

src/messageeventmodel.cpp

@@ -45,6 +45,7 @@ QHash<int, QByteArray> MessageEventModel::roleNames() const
     roles[ShowAuthorRole] = "showAuthor";
     roles[ShowSectionRole] = "showSection";
     roles[ReactionRole] = "reaction";
+    roles[IsEditedRole] = "isEdited";
     return roles;
 }
 
@@ -453,6 +454,13 @@ QVariant MessageEventModel::data(const QModelIndex &idx, int role) const
         return EventStatus::Normal;
     }
 
+    if (role == IsEditedRole) {
+        if (auto e = eventCast<const RoomMessageEvent>(&evt)) {
+            return !e->unsignedJson().isEmpty() && e->unsignedJson().contains("m.relations") && e->unsignedJson()["m.relations"].toObject().contains("m.replace");
+        }
+        return false;
+    }
+
     if (role == EventIdRole) {
         return !evt.id().isEmpty() ? evt.id() : evt.transactionId();
     }

src/messageeventmodel.h

@@ -40,6 +40,8 @@ public:
 
         ReactionRole,
 
+        IsEditedRole,
+
         // For debugging
         EventResolvedTypeRole,
     };