/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#ifndef __com_sun_star_awt_XKeyHandler_idl__
#define __com_sun_star_awt_XKeyHandler_idl__

#include <com/sun/star/lang/XEventListener.idl>

#include <com/sun/star/awt/KeyEvent.idl>


module com {  module sun {  module star {  module awt {

/** This key handler is similar to
    ::com::sun::star::awt::XKeyListener but allows the
    consumption of key events.  If a key event is consumed by one
    handler both the following handlers, with respect to the list of key
    handlers of the broadcaster, and a following handling by the
    broadcaster will not take place.

    @since OOo 1.1.2
*/
published interface XKeyHandler : ::com::sun::star::lang::XEventListener
{
    /** This function is called by the broadcaster, an
        ::com::sun::star::awt::XExtendedToolkit for
        instance, after a key has been pressed but before it is released.
        The return value decides about whether other handlers will be
        called and a handling by the broadcaster will take place.

        <p>Consume the event if the action performed by the implementation
        is mutually exclusive with the default action of the broadcaster or,
        when known, with that of other handlers.</p>

        <p>Consuming this event does not prevent the pending key-release
        event from being broadcasted.</p>

        @param aEvent
            The key event informs about the pressed key.
        @return
            When `FALSE` is returned the other handlers are called and a
            following handling of the event by the broadcaster takes place.
            Otherwise, when `TRUE` is returned, no other handler will be
            called and the broadcaster will take no further actions
            regarding the event.
    */
    boolean keyPressed ([in] com::sun::star::awt::KeyEvent aEvent);

    /** This function is called by the broadcaster, an
        ::com::sun::star::awt::XExtendedToolkit for
        instance, after a key has been pressed and released.  The return
        value decides about whether other handlers will be called and a
        handling by the broadcaster will take place.

        <p>Consume the event if the action performed by the implementation
        is mutually exclusive with the default action of the broadcaster or,
        when known, with that of other handlers.</p>

        @param aEvent
            The key event informs about the pressed key.
        @return
            When `FALSE` is returned the other handlers are called and a
            following handling of the event by the broadcaster takes place.
            Otherwise, when `TRUE` is returned, no other handler will be
            called and the broadcaster will take no further actions
            regarding the event.
    */
    boolean keyReleased ([in] com::sun::star::awt::KeyEvent aEvent);
};

}; }; }; };

#endif

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */