Improve conversation unread status detection

libdino/src/service/chat_interaction.vala

@@ -31,6 +31,43 @@ public class ChatInteraction : StreamInteractionModule, Object {
         stream_interactor.get_module(MessageProcessor.IDENTITY).message_sent.connect(on_message_sent);
     }
 
+    public bool has_unread(Conversation conversation) {
+        ContentItem? last_content_item = stream_interactor.get_module(ContentItemStore.IDENTITY).get_latest(conversation);
+        if (last_content_item == null) return false;
+
+        MessageItem? message_item = last_content_item as MessageItem;
+        if (message_item != null) {
+            Message last_message = message_item.message;
+
+            // We are the message sender
+            if (last_message.from.equals_bare(conversation.account.bare_jid)) return false;
+            // We read up to the message
+            if (conversation.read_up_to != null && last_message.equals(conversation.read_up_to)) return false;
+
+            return true;
+        }
+
+        FileItem? file_item = last_content_item as FileItem;
+        if (file_item != null) {
+            FileTransfer file_transfer = file_item.file_transfer;
+
+            // We are the file sender
+            if (file_transfer.from.equals_bare(conversation.account.bare_jid)) return false;
+
+            if (file_transfer.provider == 0) {
+                // HTTP file transfer: Check if the associated message is the last one
+                Message? message = stream_interactor.get_module(MessageStorage.IDENTITY).get_message_by_id(int.parse(file_transfer.info), conversation);
+                if (message == null) return false;
+                if (message.equals(conversation.read_up_to)) return false;
+            }
+            if (file_transfer.provider == 1) {
+                if (file_transfer.state == FileTransfer.State.COMPLETE) return false;
+            }
+            return true;
+        }
+        return false;
+    }
+
     public bool is_active_focus(Conversation? conversation = null) {
         if (conversation != null) {
             return focus_in && conversation.equals(this.selected_conversation);

libdino/src/service/counterpart_interaction_manager.vala

@@ -89,6 +89,8 @@ public class CounterpartInteractionManager : StreamInteractionModule, Object {
             if (conversation == null) return;
             Entities.Message? message = stream_interactor.get_module(MessageStorage.IDENTITY).get_message_by_stanza_id(stanza_id, conversation);
             if (message == null) return;
+            // Don't move read marker backwards because we get old info from another client
+            if (conversation.read_up_to.local_time.compare(message.local_time) > 0) return;
             conversation.read_up_to = message;
         } else {
             // We received a marker from someone else. Search the respective message and mark it.

main/src/ui/conversation_selector/conversation_selector_row.vala

@@ -166,13 +166,10 @@ public class ConversationSelectorRow : ListBoxRow {
     }
 
     protected void update_read() {
-        MessageItem? message_item = last_content_item as MessageItem;
+        bool current_read_status = !stream_interactor.get_module(ChatInteraction.IDENTITY).has_unread(conversation);
-        if (message_item == null) return;
+        if (read == current_read_status) return;
-        Message last_message = message_item.message;
+        read = current_read_status;
 
-        bool read_was = read;
-        read = last_message == null || (conversation.read_up_to != null && last_message.equals(conversation.read_up_to));
-        if (read == read_was) return;
         if (read) {
             name_label.attributes.filter((attr) => attr.equal(attr_weight_new(Weight.BOLD)));
             time_label.attributes.filter((attr) => attr.equal(attr_weight_new(Weight.BOLD)));