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#ifndef __com_sun_star_accessibility_XAccessibleSelection_idl__
#define __com_sun_star_accessibility_XAccessibleSelection_idl__

#include <com/sun/star/uno/XInterface.idl>
#include <com/sun/star/lang/IndexOutOfBoundsException.idl>

module com { module sun { module star { module accessibility {

 interface XAccessible;

/** Implement this interface to represent a selection of accessible objects.

    <p>This interface is the standard mechanism to obtain and modify the
    currently selected children.  Every object that has children that can be
    selected should support this interface.</p>

    <p>The <type>XAccessibleSelection</type> interface has to be implemented
    in conjunction with the <type>XAccessibleContext</type> interface that
    provides the children on which the first operates.</p>

    <p>It depends on the class implementing this interface, whether it
    supports single or multi selection.</p>

    @since OOo 1.1.2
*/
interface XAccessibleSelection : ::com::sun::star::uno::XInterface
{
    /** Selects the specified <type>Accessible</type> child of the
        object.

        <p>Depending on the implementing class the child is added to the
        current set a selected children (multi selection) or a previously
        selected child is deselected first (single selection).</p>

        @param nChildIndex
            Index of the child which is to add to the selection.  This index
            refers to all the children of this object.
        @throws ::com::sun::star::lang::IndexOutOfBoundsException
            if the given index does not lie in the valid range of 0 up to
            the result of
            <member>XAccessibleContext::getAccessibleChildCount()</member>-1.
    */
    void selectAccessibleChild ([in] long nChildIndex)
        raises (::com::sun::star::lang::IndexOutOfBoundsException);

    /** Determines if the specified child of this object is selected.

        @param nChildIndex
            Index of the child for which to detect whether it is selected.
            This index refers to all the children of this object.

        @return
            Returns <TRUE/> if the specified child is selected and <FALSE/>
            if it is not selected.
        @throws ::com::sun::star::lang::IndexOutOfBoundsException
            if the given index does not lie in the valid range of 0 up to
            the result of
            <member>XAccessibleContext::getAccessibleChildCount()</member>-1.
    */
    boolean isAccessibleChildSelected ([in] long nChildIndex)
        raises (::com::sun::star::lang::IndexOutOfBoundsException);

    /** Clears the selection, so that no children of the
        object are selected.
    */
    void clearAccessibleSelection ();

    /** Select all children.

        <p>Causes every child of the object to be selected if the object
        supports multiple selections.  If multiple selection is not
        supported then the first child, if it exists, is selected and all
        other children are deselected.</p>
    */
    void selectAllAccessibleChildren ();

    /** Returns the number of Accessible children that are currently
        selected.

        <p>This number specifies the valid interval of indices that can be
        used as arguments for the methods
        <member>XAccessibleSelection::getSelectedChild</member> and
        <member>XAccessibleSelection::deselectSelectedChild</member>.</p>

        @return
            Returns the number of selected children of this object or 0 if
            no child is selected.
    */
    long getSelectedAccessibleChildCount ();

    /** Returns the specified selected Accessible child.

        @param nSelectedChildIndex
            This index refers only to the selected children, not to all the
            children of this object.  Even if all children are selected, the
            indices enumerating the selected children need not be the same
            as those enumerating all children.  If only single selection is
            supported the only valid value is 0.

        @return
            If the index is valid, i.e. not negative and lower than the
            number of selected children, then a valid reference to the
            corresponding <type>XAccessible</type> child is returned.
            Otherwise an exception is thrown.
        @throws ::com::sun::star::lang::IndexOutOfBoundsException
            if the given index does not lie in the valid range of 0 up to
            the result of
            <member>XAccessibleRelationSet::getAccessibleChildCount()</member>-1.
    */
    XAccessible getSelectedAccessibleChild ([in] long nSelectedChildIndex)
        raises (::com::sun::star::lang::IndexOutOfBoundsException);

    /** Removes the specified child from the set of this object's
        selected children.  Note that not all applications support
        deselection: calls to this method may be silently ignored.

        @param nChildIndex
            This index refers to all children not just the selected ones.
            If the specified child is not selected or it can not be
            deselected for any reason then the method call is silently
            ignored.
        @throws ::com::sun::star::lang::IndexOutOfBoundsException
            if the given index does not lie in the valid range of 0 up to,
            but not including, the result of
            <member scope="XAccessibleContext">getAccessibleChildCount()</member>.
    */
    void deselectAccessibleChild ([in] long nChildIndex)
        raises (::com::sun::star::lang::IndexOutOfBoundsException);
};

}; }; }; };

#endif

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