Scroll to the bottom of the conversation when receive new messages.

data/conversationmessageslist.h

@@ -17,7 +17,7 @@ public:
     ConversationMessagesList();
 
     /**
-     * Get the ID of the oldest message of
+     * Get the ID of the newest message of
      * the conversation
      *
      * @return The ID of the message / -1 in case of failure

widgets/conversationwidget.cpp

@@ -2,6 +2,7 @@
 #include <algorithm>
 #include <QTimer>
 #include <QFileDialog>
+#include <QScrollBar>
 
 #include "conversationwidget.h"
 #include "ui_conversationwidget.h"
@@ -136,6 +137,16 @@ void ConversationWidget::getMessagesCallback(bool success, QList<ConversationMes
 
         it++;
     }
+
+    //Scroll to the end of the widget if required
+    if(list.at(list.count()-1).iD() == mMessages.getLastMessageID())
+        QTimer::singleShot(1000, this, &ConversationWidget::scrollToBottom);
+}
+
+void ConversationWidget::scrollToBottom()
+{
+    ui->scrollArea->verticalScrollBar()->setValue(
+                ui->scrollArea->verticalScrollBar()->maximum());
 }
 
 void ConversationWidget::sendMessageCallback(bool success)

widgets/conversationwidget.h

@@ -59,6 +59,11 @@ private slots:
      */
     void getMessagesCallback(bool success, QList<ConversationMessage> list);
 
+    /**
+     * Scroll to the bottom of the conversation
+     */
+    void scrollToBottom();
+
     /**
      * Method called once the server replied to a send conversation
      * message request