/*************************************************************************
 *
 *  $RCSfile: XDesktop.idl,v $
 *
 *  $Revision: 1.8 $
 *
 *  last change: $Author: mi $ $Date: 2002/10/03 13:05:22 $
 *
 *  The Contents of this file are made available subject to the terms of
 *  either of the following licenses
 *
 *         - GNU Lesser General Public License Version 2.1
 *         - Sun Industry Standards Source License Version 1.1
 *
 *  Sun Microsystems Inc., October, 2000
 *
 *  GNU Lesser General Public License Version 2.1
 *  =============================================
 *  Copyright 2000 by Sun Microsystems, Inc.
 *  901 San Antonio Road, Palo Alto, CA 94303, USA
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License version 2.1, as published by the Free Software Foundation.
 *
 *  This library 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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *  MA  02111-1307  USA
 *
 *
 *  Sun Industry Standards Source License Version 1.1
 *  =================================================
 *  The contents of this file are subject to the Sun Industry Standards
 *  Source License Version 1.1 (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.openoffice.org/license.html.
 *
 *  Software provided under this License is provided on an "AS IS" basis,
 *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
 *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
 *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
 *  See the License for the specific provisions governing your rights and
 *  obligations concerning the Software.
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 *  The Initial Developer of the Original Code is: Sun Microsystems, Inc.
 *
 *  Copyright: 2000 by Sun Microsystems, Inc.
 *
 *  All Rights Reserved.
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 *  Contributor(s): _______________________________________
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 *
 ************************************************************************/
#ifndef __com_sun_star_frame_XDesktop_idl__
#define __com_sun_star_frame_XDesktop_idl__

#ifndef __com_sun_star_uno_XInterface_idl__
#include <com/sun/star/uno/XInterface.idl>
#endif

#ifndef __com_sun_star_frame_XTerminateListener_idl__
#include <com/sun/star/frame/XTerminateListener.idl>
#endif

#ifndef __com_sun_star_container_XEnumerationAccess_idl__
#include <com/sun/star/container/XEnumerationAccess.idl>
#endif

#ifndef __com_sun_star_lang_XComponent_idl__
#include <com/sun/star/lang/XComponent.idl>
#endif

#ifndef __com_sun_star_frame_XFrame_idl__
#include <com/sun/star/frame/XFrame.idl>
#endif


//=============================================================================

 module com {  module sun {  module star {  module frame {

//=============================================================================
/** This is the main interface of a desktop service.

    <p>
    A desktop is an environment for components which can be viewed in
	frames. Frames are like frames in HTML framesets. This does not imply
	that a desktop can handle framesets; the frames may be top frames
	only.
    </p>

    @see Desktop
 */
interface XDesktop: com::sun::star::uno::XInterface
{
	//-------------------------------------------------------------------------
	/** tries to terminate the desktop.

        <p>
        First, every terminate listener is called by his <member>XTerminateListener::queryTermination()</member> method.
        Throwing of a <type>TerminationVetoException</type> can break the termination process and the listener how has
        done that will be the new "controller" of the desktop lifetime. He should try to terminate it by himself after
        his own processes will be finished.
        If nobody disagree with the termination request, every listener will be called by his
        <member>XTerminateListener::notifyTermination()</member> method.
        </p>

        @return
            <TRUE/>if all listener agree with this request
            <br>
            <FALSE/>otherwise

        @see XTerminateListener
        @see TerminationVetoException
	 */
	boolean terminate();

	//-------------------------------------------------------------------------
	/** registers an event listener to the desktop, which is called
		when the desktop is queried to terminate, and when it really
		terminates.

        @param Listener
            listener for termination events

        @see XDesktop::removeTerminateListener()
	 */
    [oneway] void addTerminateListener( [in] XTerminateListener Listener );

	//-------------------------------------------------------------------------
    /** unregisters an event listener for termination events.

        @param Listener
            listener which wish to be deregistered

        @see XDesktop::addTerminateListener()
	 */
    [oneway] void removeTerminateListener( [in] XTerminateListener Listener );

	//-------------------------------------------------------------------------
    /** provides read access to collection of all currently loaded components
        inside the frame tree

        <p>
        The component is, by definition, the model of the control which
        is loaded into a frame, or if no model exists, into the control
        itself.
        The service <type>Components</type> which is available from this
        method is a collection of all components of the desktop which are open
        within a frame of the desktop.
        </p>

        @returns
            the collection of all components

        @see Components
	 */
	com::sun::star::container::XEnumerationAccess getComponents();

	//-------------------------------------------------------------------------
    /** provides read access to the component inside the tree which has the UI focus

        <p>
        Normally, the component is the model part of the
        active component. If no model exists it is the active controller
        (view) itself.
        </p>

        @returns
            the component within the desktop environment which has the UI focus.

        @see XDesktop::getCurrentFrame()
	 */
	com::sun::star::lang::XComponent getCurrentComponent();

	//-------------------------------------------------------------------------
    /** provides read access to the frame wich contains the current component

        @returns
            the frame of the component which has the
            UI focus within this desktop enviroment

        @see XDesktop::getCurrentComponent()
	 */
    XFrame getCurrentFrame();
};

//=============================================================================

}; }; }; };

#endif
