[network/ruqola] src/widgets/room: Prepare to add new message indicator

Git commit ca78e6299f1ab30fb739e9c5b5635e0af31888a5 by Laurent Montel.
Committed on 29/07/2026 at 21:09.
Pushed by mlaurent into branch 'master'.

Prepare to add new message indicator

M  +46   -0    src/widgets/room/messagelistview.cpp
M  +5    -0    src/widgets/room/messagelistview.h

https://invent.kde.org/network/ruqola/-/commit/ca78e6299f1ab30fb739e9c5b5635e0af31888a5

diff --git a/src/widgets/room/messagelistview.cpp b/src/widgets/room/messagelistview.cpp
index 7fca584552..a98a57a462 100644
--- a/src/widgets/room/messagelistview.cpp
+++ b/src/widgets/room/messagelistview.cpp
@@ -56,6 +56,7 @@
 #include <QPainter>
 #include <QScrollBar>
 
+#include "newmessageindicator.h"
 #include "ruqolaglobalconfig.h"
 
 #include "config-ruqola.h"
@@ -81,6 +82,9 @@ MessageListView::MessageListView(RocketChatAccount *account, Mode mode, QWidget
     }
     connect(mActionButtonsGenerator, &ActionButtonsGenerator::uiInteractionRequested, this, &MessageListView::uiInteractionRequested);
 
+    mNewMessageIndicator = new NewMessageIndicator(viewport());
+    mNewMessageIndicator->hide();
+
     mMessageListDelegate->setShowThreadContext(mMode != Mode::ThreadEditing);
     mMessageListDelegate->setEnableEmojiMenu(mMode != Mode::Moderation);
     setItemDelegate(mMessageListDelegate);
@@ -120,6 +124,12 @@ void MessageListView::wheelEvent(QWheelEvent *e)
     MessageListViewBase::wheelEvent(e);
 }
 
+void MessageListView::resizeEvent(QResizeEvent *e)
+{
+    MessageListViewBase::resizeEvent(e);
+    repositionNewMessageIndicator();
+}
+
 void MessageListView::paintEvent(QPaintEvent *e)
 {
     if (mRoom && (mRoom->numberMessages() == 0)) {
@@ -166,12 +176,15 @@ void MessageListView::setRoom(Room *room)
 {
     if (mRoom) {
         disconnect(mRoom, &Room::lastSeenChanged, this, &MessageListView::slotLastSeenChanged);
+        disconnect(mRoom, &Room::unreadChanged, this, &MessageListView::updateNewMessageIndicatorVisibility);
         mMessageListDelegate->clearSelection();
     }
     mRoom = room;
     if (mRoom) {
         connect(mRoom, &Room::lastSeenChanged, this, &MessageListView::slotLastSeenChanged);
+        connect(mRoom, &Room::unreadChanged, this, &MessageListView::updateNewMessageIndicatorVisibility);
     }
+    updateNewMessageIndicatorVisibility();
 }
 
 void MessageListView::slotVerticalScrollbarChanged(int value)
@@ -181,6 +194,39 @@ void MessageListView::slotVerticalScrollbarChanged(int value)
         // Perhaps finding a better method.
         verticalScrollBar()->setValue(1); // If we are at 0 we can't continue to load history
     }
+    updateNewMessageIndicatorVisibility();
+}
+
+void MessageListView::updateNewMessageIndicatorVisibility()
+{
+    if (!mNewMessageIndicator) {
+        return;
+    }
+    const auto *vbar = verticalScrollBar();
+    const bool notAtBottom = vbar->value() < vbar->maximum();
+    const bool hasUnread = mRoom && (mRoom->unread() > 0);
+    const bool shouldShow = notAtBottom && hasUnread;
+    if (shouldShow && !mNewMessageIndicator->isVisible()) {
+        repositionNewMessageIndicator();
+        mNewMessageIndicator->showNewMessageIndicator(true);
+        mNewMessageIndicator->raise();
+    } else if (!shouldShow && mNewMessageIndicator->isVisible()) {
+        mNewMessageIndicator->showNewMessageIndicator(false);
+    }
+}
+
+void MessageListView::repositionNewMessageIndicator()
+{
+    if (!mNewMessageIndicator) {
+        return;
+    }
+    mNewMessageIndicator->adjustSize();
+    const QSize vSize = viewport()->size();
+    const QSize iSize = mNewMessageIndicator->sizeHint();
+    const int margin = 8;
+    const int x = (vSize.width() - iSize.width()) / 2;
+    const int y = vSize.height() - iSize.height() - margin;
+    mNewMessageIndicator->move(x, y);
 }
 
 void MessageListView::goToMessage(const QByteArray &messageId)
diff --git a/src/widgets/room/messagelistview.h b/src/widgets/room/messagelistview.h
index 28fe3b4198..22f625a1ba 100644
--- a/src/widgets/room/messagelistview.h
+++ b/src/widgets/room/messagelistview.h
@@ -14,6 +14,7 @@ class MessageListDelegate;
 class RocketChatAccount;
 class Room;
 class ActionButtonsGenerator;
+class NewMessageIndicator;
 namespace TextTranslator
 {
 class TranslatorMenu;
@@ -55,6 +56,7 @@ public:
 
 protected:
     void paintEvent(QPaintEvent *e) override;
+    void resizeEvent(QResizeEvent *e) override;
     void contextMenuEvent(QContextMenuEvent *event) override;
 
     bool mouseEvent(QMouseEvent *event, const QStyleOptionViewItem &option, const QModelIndex &index) override;
@@ -107,10 +109,13 @@ private:
     LIBRUQOLAWIDGETS_NO_EXPORT void createEmojiWidgetAction(QMenu *menu, const QModelIndex &index);
     LIBRUQOLAWIDGETS_NO_EXPORT void slotShowGeneratedMessage(const QModelIndex &index);
     LIBRUQOLAWIDGETS_NO_EXPORT void slotReadReceiptsMessage(const QModelIndex &index);
+    LIBRUQOLAWIDGETS_NO_EXPORT void updateNewMessageIndicatorVisibility();
+    LIBRUQOLAWIDGETS_NO_EXPORT void repositionNewMessageIndicator();
     QPointer<Room> mRoom;
     const MessageListView::Mode mMode = MessageListView::Mode::Editing;
     MessageListDelegate *const mMessageListDelegate;
     TextTranslator::TranslatorMenu *mTranslatorMenu = nullptr;
     QPointer<RocketChatAccount> mCurrentRocketChatAccount;
     ActionButtonsGenerator *const mActionButtonsGenerator;
+    NewMessageIndicator *mNewMessageIndicator = nullptr;
 };