Focus current chat widget text input when window is activated or empty window space clicked.

src/widget/widget.cpp

@@ -1577,6 +1577,10 @@ bool Widget::event(QEvent * e)
 {
     switch (e->type())
     {
+        case QEvent::MouseButtonPress:
+        case QEvent::MouseButtonDblClick:
+            focusChatInput();
+            break;
         case QEvent::WindowActivate:
             if (activeChatroomWidget != nullptr)
             {
@@ -1584,6 +1588,7 @@ bool Widget::event(QEvent * e)
                 activeChatroomWidget->updateStatusLight();
                 setWindowTitle(activeChatroomWidget->getTitle());
             }
+
             if (eventFlag)
             {
                 eventFlag = false;
@@ -1591,13 +1596,15 @@ bool Widget::event(QEvent * e)
                 updateIcons();
             }
 
+            focusChatInput();
+
 #ifdef Q_OS_MAC
             emit windowStateChanged(windowState());
 
         case QEvent::WindowStateChange:
             Nexus::getInstance().updateWindowsStates();
 #endif
-
+            break;
         default:
             break;
     }
@@ -2080,3 +2087,14 @@ void Widget::retranslateUi()
     previousConversationAction->setText(tr("Previous Conversation"));
 #endif
 }
+
+void Widget::focusChatInput()
+{
+    if (activeChatroomWidget)
+    {
+        if (Friend* f = activeChatroomWidget->getFriend())
+            f->getChatForm()->focusInput();
+        else if (Group* g = activeChatroomWidget->getGroup())
+            g->getChatForm()->focusInput();
+    }
+}

src/widget/widget.h

@@ -221,6 +221,7 @@ private:
     static bool filterOnline(int index);
     static bool filterOffline(int index);
     void retranslateUi();
+    void focusChatInput();
 
 private:
     SystemTrayIcon *icon;