/*************************************************************************
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 *  $RCSfile: XFilePickerListener.idl,v $
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 *  Sun Microsystems Inc., October, 2000
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 *  Sun Industry Standards Source License Version 1.1
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#ifndef __com_sun_star_ui_dialogs_XFilePickerListener_idl__
#define __com_sun_star_ui_dialogs_XFilePickerListener_idl__

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

#ifndef __com_sun_star_ui_dialogs_FilePickerEvent_idl__
#include <com/sun/star/ui/dialogs/FilePickerEvent.idl>
#endif

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

module com { module sun { module star { module ui { module dialogs {

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

//=============================================================================
/** Interface to be implemented by a FilePicker listener.

	<p> The <type>XFilePickerListener</type> interface must be implemented by
	the clients of the FilePicker service which need to be informed about
	events while the FilePicker service is displayed.</p>
*/

interface XFilePickerListener: com::sun::star::lang::XEventListener
{
	//-------------------------------------------------------------------------
	/** A client receives this event if the file selection within the 
		FilePicker service dialog changes.

		@param aEvent
		of type <type>FilePickerEvent</type> that describes the event

		@see com::sun::star::ui::dialogs::FilePickerEvent
	*/
	void fileSelectionChanged( [in] FilePickerEvent aEvent );


	//-------------------------------------------------------------------------
	/** A client receives this event if the directory selection within the 
		FilePicker dialog changes.

		@param aEvent
		Of type <type>FilePickerEvent</type> that describes the event.

		@see com::sun::star::ui::dialogs::FilePickerEvent
	*/
	void directoryChanged( [in] FilePickerEvent aEvent );

	//-------------------------------------------------------------------------
	/** A client receives this event if the F1 key or the help button was
	    pressed.

		@param aEvent
		of type <type>FilePickerEvent</type> that describes the event

		@returns 
		A help string which the FilePicker dialog should use to display
		a help for a specific control. If the returned string is empty it is
		undefined how the FilePicker implementation will behave.
		It may show a message 'no help available' or may show no
		help at all. 

		@see com::sun::star::ui::dialogs::FilePickerEvent
	*/
	string helpRequested( [in] FilePickerEvent aEvent );

	//-------------------------------------------------------------------------
	/** A client receives this event if the state of a control within the 
		FilePicker service dialog changes.

		@param aEvent
		of type <type>FilePickerEvent</type> that describes the event.

		@see com::sun::star::ui::dialogs::FilePickerEvent
	*/
	void controlStateChanged( [in] FilePickerEvent aEvent );

	//-------------------------------------------------------------------------
	/** A client receives this event if the size of the FilePicker dialog
		has changed. If the FilePicker dialog contains a preview the client
		may ask for the new dimension of the preview area. 
	*/
	void dialogSizeChanged( );
};

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

}; }; }; }; };


#endif
