| 1 |
772 |
jeremybenn |
/* AccessibleSelection.java -- aids in accessibly selecting components
|
| 2 |
|
|
Copyright (C) 2000, 2002, 2005 Free Software Foundation, Inc.
|
| 3 |
|
|
|
| 4 |
|
|
This file is part of GNU Classpath.
|
| 5 |
|
|
|
| 6 |
|
|
GNU Classpath is free software; you can redistribute it and/or modify
|
| 7 |
|
|
it under the terms of the GNU General Public License as published by
|
| 8 |
|
|
the Free Software Foundation; either version 2, or (at your option)
|
| 9 |
|
|
any later version.
|
| 10 |
|
|
|
| 11 |
|
|
GNU Classpath is distributed in the hope that it will be useful, but
|
| 12 |
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 13 |
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
| 14 |
|
|
General Public License for more details.
|
| 15 |
|
|
|
| 16 |
|
|
You should have received a copy of the GNU General Public License
|
| 17 |
|
|
along with GNU Classpath; see the file COPYING. If not, write to the
|
| 18 |
|
|
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
| 19 |
|
|
02110-1301 USA.
|
| 20 |
|
|
|
| 21 |
|
|
Linking this library statically or dynamically with other modules is
|
| 22 |
|
|
making a combined work based on this library. Thus, the terms and
|
| 23 |
|
|
conditions of the GNU General Public License cover the whole
|
| 24 |
|
|
combination.
|
| 25 |
|
|
|
| 26 |
|
|
As a special exception, the copyright holders of this library give you
|
| 27 |
|
|
permission to link this library with independent modules to produce an
|
| 28 |
|
|
executable, regardless of the license terms of these independent
|
| 29 |
|
|
modules, and to copy and distribute the resulting executable under
|
| 30 |
|
|
terms of your choice, provided that you also meet, for each linked
|
| 31 |
|
|
independent module, the terms and conditions of the license of that
|
| 32 |
|
|
module. An independent module is a module which is not derived from
|
| 33 |
|
|
or based on this library. If you modify this library, you may extend
|
| 34 |
|
|
this exception to your version of the library, but you are not
|
| 35 |
|
|
obligated to do so. If you do not wish to do so, delete this
|
| 36 |
|
|
exception statement from your version. */
|
| 37 |
|
|
|
| 38 |
|
|
|
| 39 |
|
|
package javax.accessibility;
|
| 40 |
|
|
|
| 41 |
|
|
/**
|
| 42 |
|
|
* If an object implements this interface then it must be able to control
|
| 43 |
|
|
* the selection of its children. Accessibility software can use the
|
| 44 |
|
|
* implementations of this interface to change the selection set of children.
|
| 45 |
|
|
*
|
| 46 |
|
|
* <p>The <code>AccessibleContext.getAccessibleSelection()</code> method should
|
| 47 |
|
|
* return <code>null</code> if an object does not implement this interface.
|
| 48 |
|
|
*
|
| 49 |
|
|
* @author Eric Blake (ebb9@email.byu.edu)
|
| 50 |
|
|
* @see Accessible
|
| 51 |
|
|
* @see AccessibleContext
|
| 52 |
|
|
* @see AccessibleContext#getAccessibleSelection()
|
| 53 |
|
|
* @since 1.2
|
| 54 |
|
|
* @status updated to 1.4
|
| 55 |
|
|
*/
|
| 56 |
|
|
public interface AccessibleSelection
|
| 57 |
|
|
{
|
| 58 |
|
|
/**
|
| 59 |
|
|
* Returns the number of currently selected Accessible children, which may
|
| 60 |
|
|
* be 0 if nothing is selected.
|
| 61 |
|
|
*
|
| 62 |
|
|
* @return the number of selected children
|
| 63 |
|
|
*/
|
| 64 |
|
|
int getAccessibleSelectionCount();
|
| 65 |
|
|
|
| 66 |
|
|
/**
|
| 67 |
|
|
* Returns the i-th selected child (not necessarily the overall i-th child)
|
| 68 |
|
|
* of this Accessible object. If i is out of bounds, null is returned.
|
| 69 |
|
|
*
|
| 70 |
|
|
* @param i zero-based index of selected child objects
|
| 71 |
|
|
* @return the Accessible child, or null
|
| 72 |
|
|
* @see #getAccessibleSelectionCount()
|
| 73 |
|
|
*/
|
| 74 |
|
|
Accessible getAccessibleSelection(int i);
|
| 75 |
|
|
|
| 76 |
|
|
/**
|
| 77 |
|
|
* Determine if i-th overall child of this accessible object is selected.
|
| 78 |
|
|
* If i is out of bounds, false is returned.
|
| 79 |
|
|
*
|
| 80 |
|
|
* @param i zero-based index of child objects
|
| 81 |
|
|
* @return true if specified child exists and is selected
|
| 82 |
|
|
*/
|
| 83 |
|
|
boolean isAccessibleChildSelected(int i);
|
| 84 |
|
|
|
| 85 |
|
|
/**
|
| 86 |
|
|
* Select the specified child if it is not already selected, placing it in
|
| 87 |
|
|
* the object's current selection. If the object does not support multiple
|
| 88 |
|
|
* selections then the new selection replaces the old. If the specified
|
| 89 |
|
|
* child is already selected, or is out of bounds, this method does nothing.
|
| 90 |
|
|
*
|
| 91 |
|
|
* @param i zero-based index of child objects
|
| 92 |
|
|
*/
|
| 93 |
|
|
void addAccessibleSelection(int i);
|
| 94 |
|
|
|
| 95 |
|
|
/**
|
| 96 |
|
|
* Unselect the specified child of this Accessible object. If the specified
|
| 97 |
|
|
* child is not selected, or is out of bounds, this method does nothing.
|
| 98 |
|
|
*
|
| 99 |
|
|
* @param i the zero-based index of the child objects
|
| 100 |
|
|
*/
|
| 101 |
|
|
void removeAccessibleSelection(int i);
|
| 102 |
|
|
|
| 103 |
|
|
/**
|
| 104 |
|
|
* Unselect all children of this Accessible object.
|
| 105 |
|
|
*/
|
| 106 |
|
|
void clearAccessibleSelection();
|
| 107 |
|
|
|
| 108 |
|
|
/**
|
| 109 |
|
|
* Select all children of this Accessible object if the object supports
|
| 110 |
|
|
* multiple selections or has a single child. Otherwise this does nothing.
|
| 111 |
|
|
*/
|
| 112 |
|
|
void selectAllAccessibleSelection();
|
| 113 |
|
|
} // interface AccessibleSelection
|
