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authorAndrei Karas <akaras@inbox.ru>2011-01-02 01:48:38 +0200
committerAndrei Karas <akaras@inbox.ru>2011-01-02 02:41:24 +0200
commit3eeae12c498d1a4dbe969462d2ba841f77ee3ccb (patch)
treeff8eab35e732bc0749fc11677c8873a7b3a58704 /src/gui/focushandler.h
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Initial commit.
This code based on mana client http://www.gitorious.org/mana/mana and my private repository.
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+/*
+ * The Mana Client
+ * Copyright (C) 2004-2009 The Mana World Development Team
+ * Copyright (C) 2009-2010 The Mana Developers
+ *
+ * This file is part of The Mana Client.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef FOCUSHANDLER_H
+#define FOCUSHANDLER_H
+
+#include <guichan/focushandler.hpp>
+
+#include <list>
+
+/**
+ * The focus handler. This focus handler does exactly the same as the Guichan
+ * focus handler, but keeps a stack of modal widgets to be able to handle
+ * multiple modal focus requests.
+ */
+class FocusHandler : public gcn::FocusHandler
+{
+ public:
+ /**
+ * Sets modal focus to a widget. When there is already a modal widget
+ * then that widget loses modal focus and will regain it after this
+ * widget releases his modal focus.
+ */
+ void requestModalFocus(gcn::Widget *widget);
+
+ /**
+ * Releases modal focus of a widget. When this widget had modal focus
+ * and there are other widgets that had also requested modal focus,
+ * then modal focus will be transfered to the last of those.
+ */
+ void releaseModalFocus(gcn::Widget *widget);
+
+ /**
+ * Removes a widget from the focus handler. Also makes sure no dangling
+ * pointers remain in modal focus stack.
+ */
+ void remove(gcn::Widget *widget);
+
+ /**
+ * Overloaded to allow windows to move to the top when one of their
+ * widgets is tabbed to when tabbing through focusable elements.
+ */
+ void tabNext();
+ void tabPrevious();
+
+ private:
+ /**
+ * Checks to see if the widget tabbed to is in a window, and if it is,
+ * it requests the window be moved to the top.
+ */
+ void checkForWindow();
+
+ /**
+ * Stack of widgets that have requested modal forcus.
+ */
+ std::list<gcn::Widget*> mModalStack;
+};
+
+#endif