gtk: mark current chat as read when application gains focus

gtk/chat.c

@@ -460,6 +460,17 @@ static gboolean copy_uri_into_clipboard_handler(GtkMenuItem *menuitem, gpointer
 	return FALSE;
 }
 
+static void linphone_gtk_window_focused(void) {
+	// if we are in a chat, mark it as read
+	GtkWidget *main_window=linphone_gtk_get_main_window();
+	GtkWidget *friendlist=linphone_gtk_get_widget(main_window,"contact_list");
+	GtkWidget *w=(GtkWidget*)g_object_get_data(G_OBJECT(friendlist),"chatview");
+	LinphoneChatRoom *cr=w?g_object_get_data(G_OBJECT(w),"cr"):NULL;
+	if (cr) {
+		linphone_gtk_mark_chat_read(cr);
+	}
+}
+
 GtkWidget* linphone_gtk_init_chatroom(LinphoneChatRoom *cr, const LinphoneAddress *with){
 	GtkWidget *chat_view=linphone_gtk_create_widget("chatroom_frame");
 	GtkWidget *main_window=linphone_gtk_get_main_window();
@@ -536,6 +547,9 @@ GtkWidget* linphone_gtk_init_chatroom(LinphoneChatRoom *cr, const LinphoneAddres
 	g_signal_connect_swapped(G_OBJECT(entry),"activate",(GCallback)linphone_gtk_send_text,NULL);
 	g_signal_connect_swapped(G_OBJECT(entry),"changed",(GCallback)linphone_gtk_compose_text,NULL);
 	g_signal_connect(G_OBJECT(notebook),"switch_page",(GCallback)linphone_gtk_notebook_tab_select,NULL);
+
+	g_signal_connect(G_OBJECT(main_window), "focus-in-event", G_CALLBACK(linphone_gtk_window_focused), NULL);
+
 	return chat_view;
 }