accessible/public/nsIAccessibleSelectable.idl

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  20  * the Initial Developer. All Rights Reserved.
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  22  * Contributor(s):
  23  *   Marc Mulcahy (marc.mulcahy@sun.com)
  24  *   Paul Sandoz (paul.sandoz@sun.com)
  25  *   Bill Haneman (bill.haneman@sun.com)
  26  *   Kyle Yuan (kyle.yuan@sun.com)
  27  *   Aaron Leventhal (aaronl@netscape.com)
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  41  * ***** END LICENSE BLOCK ***** */
  42 #include "nsISupports.idl"
  43 #include "nsIAccessible.idl"
  44 #include "nsIArray.idl"
  45
  46 /**
  47  * An interface for the accessibility module and in-process accessibility clients
  48  * for dealing with getting and changing the selection of accessible nodes.
  49  *
  50  * @status UNDER_REVIEW
  51  */
  52 [scriptable, uuid(34d268d6-1dd2-11b2-9d63-83a5e0ada290)]
  53 interface nsIAccessibleSelectable : nsISupports
  54 {
  55     const unsigned long eSelection_Add = 0;
  56     const unsigned long eSelection_Remove = 1;
  57     const unsigned long eSelection_GetState = 2;
  58
  59     /**
  60      * Return an nsIArray of selected nsIAccessible children
  61      */
  62     nsIArray GetSelectedChildren();
  63
  64     /**
  65      * Returns the number of accessible children currently selected.
  66      */
  67     readonly attribute long selectionCount;
  68
  69     /**
  70      * Adds the specified accessible child of the object to the
  71      * object's selection.
  72      * If the specified object is already selected, then it does nothing.
  73      * @throws NS_ERROR_FAILURE if the specified object is not selectable.
  74      */
  75     void addChildToSelection(in long index);
  76
  77     /**
  78      * Removes the specified child of the object from the object's selection.
  79      * If the specified object was not selected, then it does nothing.
  80      * @throws NS_ERROR_FAILURE if the specified object is not selectable.
  81      */
  82     void removeChildFromSelection(in long index);
  83
  84     /**
  85      * Clears the selection in the object so that no children in the object
  86      * are selected.
  87      */
  88     void clearSelection();
  89
  90     /**
  91      * Returns a reference to the accessible object representing the specified
  92      * selected child of the object.
  93      * @param index Zero-based selected accessible child index
  94      * @return The nth selected accessible child
  95      */
  96     nsIAccessible refSelection(in long index);
  97
  98     /**
  99       * Determines if the current child of this object is selected
 100       * @param The zero-based accessible child index
 101       * @return Returns true if the child is selected, false if not.
 102       */
 103     boolean isChildSelected(in long index);
 104
 105     /**
 106      * Select all children
 107      * @return If the object does not accept multiple selection, return false.
 108      *         Otherwise, returns true.
 109      */
 110     boolean selectAllSelection();
 111 };