From 256514e55d72f0cddc926b7c3e504cc4f9d40f72 Mon Sep 17 00:00:00 2001
From: Slava Monich <slava@monich.com>
Date: Tue, 21 Nov 2023 22:34:10 +0200
Subject: [PATCH] Added "unread mention" indicator to the chat list (#530)

It's displayed in place of the "unread reaction" indicator. In case
if there are both unread mentions and reactions, "unread mention"
takes precedence.
---
 qml/components/PhotoTextsListItem.qml | 33 ++++++++++++++++++---------
 src/tdlibreceiver.cpp                 |  3 +++
 2 files changed, 25 insertions(+), 11 deletions(-)

diff --git a/qml/components/PhotoTextsListItem.qml b/qml/components/PhotoTextsListItem.qml
index 959fdd5..344e25e 100644
--- a/qml/components/PhotoTextsListItem.qml
+++ b/qml/components/PhotoTextsListItem.qml
@@ -108,27 +108,38 @@ ListItem {
             }
 
             Rectangle {
-                id: chatUnreadReactionCountBackground
                 color: isMuted ? ((Theme.colorScheme === Theme.DarkOnLight) ? "lightgray" : "dimgray") : Theme.highlightBackgroundColor
                 width: Theme.fontSizeLarge
                 height: Theme.fontSizeLarge
                 anchors.right: parent.right
                 anchors.top: parent.top
                 radius: parent.width / 2
-                visible: chatListViewItem.unreadReactionCount > 0
-            }
+                visible: chatListViewItem.unreadReactionCount > 0 || chatListViewItem.unreadMentionCount > 0
 
-            Icon {
-                source: "image://theme/icon-s-favorite"
-                height: Theme.iconSizeExtraSmall
-                width: Theme.iconSizeExtraSmall
-                highlighted: chatListViewItem.highlighted
-                anchors.centerIn: chatUnreadReactionCountBackground
-                visible: chatListViewItem.unreadReactionCount > 0
-            }
+                Icon {
+                    source: "image://theme/icon-s-favorite"
+                    height: Theme.iconSizeExtraSmall
+                    width: Theme.iconSizeExtraSmall
+                    highlighted: chatListViewItem.highlighted
+                    anchors.centerIn: parent
+                    visible: chatListViewItem.unreadReactionCount > 0 && !chatListViewItem.unreadMentionCount
+                }
 
+                Text {
+                    font {
+                        pixelSize: Theme.iconSizeExtraSmall
+                        bold: true
+                    }
+                    color: Theme.primaryColor
+                    anchors.centerIn: parent
+                    visible: chatListViewItem.unreadMentionCount > 0
+                    opacity: isMuted ? Theme.opacityHigh : 1.0
+                    text: "@"
+                }
+            }
         }
     }
+
     Column {
         id: contentColumn
         anchors {
diff --git a/src/tdlibreceiver.cpp b/src/tdlibreceiver.cpp
index 8f65952..abd9d03 100644
--- a/src/tdlibreceiver.cpp
+++ b/src/tdlibreceiver.cpp
@@ -175,6 +175,7 @@ TDLibReceiver::TDLibReceiver(void *tdLibClient, QObject *parent) : QThread(paren
     handlers.insert("updateMessageInteractionInfo", &TDLibReceiver::processUpdateMessageInteractionInfo);
     handlers.insert("sessions", &TDLibReceiver::processSessions);
     handlers.insert("availableReactions", &TDLibReceiver::processAvailableReactions);
+    handlers.insert("updateMessageMentionRead", &TDLibReceiver::processUpdateChatUnreadMentionCount);
     handlers.insert("updateChatUnreadMentionCount", &TDLibReceiver::processUpdateChatUnreadMentionCount);
     handlers.insert("updateChatUnreadReactionCount", &TDLibReceiver::processUpdateChatUnreadReactionCount);
     handlers.insert("updateActiveEmojiReactions", &TDLibReceiver::processUpdateActiveEmojiReactions);
@@ -736,6 +737,8 @@ void TDLibReceiver::processAvailableReactions(const QVariantMap &receivedInforma
 
 void TDLibReceiver::processUpdateChatUnreadMentionCount(const QVariantMap &receivedInformation)
 {
+    // Handles both updateMessageMentionRead and updateChatUnreadMentionCount
+    // They both have chat_id and unread_mention_count which is all we need
     const qlonglong chatId = receivedInformation.value(CHAT_ID).toLongLong();
     const int unreadMentionCount = receivedInformation.value(UNREAD_MENTION_COUNT).toInt();
     LOG("Chat unread mention count updated" << chatId << unreadMentionCount);