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nsIAccessibleRelation.idl

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 *   Alexander Surkov <surkov.alexander@gmail.com> (original author)
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#include "nsISupports.idl"
#include "nsIArray.idl"

interface nsIAccessible;

/**
 * This interface gives access to an accessible's set of relations.
 * Be carefull, do not change constants until ATK has a structure to map gecko
 * constants into ATK constants.
 */
[scriptable, uuid(f42a1589-70ab-4704-877f-4a9162bbe188)]
00050 interface nsIAccessibleRelation : nsISupports
{

  const unsigned long RELATION_NUL = 0x00;

  /**
   * Some attribute of this object is affected by a target object.
   */
00058   const unsigned long RELATION_CONTROLLED_BY = 0x01;

  // First relation
  const unsigned long RELATION_FIRST = RELATION_CONTROLLED_BY;

  /**
   * This object is interactive and controls some attribute of a target object.
   */
00066   const unsigned long RELATION_CONTROLLER_FOR = 0x02;

  /**
   * This object is label for a target object.
   */
00071   const unsigned long RELATION_LABEL_FOR = 0x03;

  /**
   * This object is labelled by a target object.
   */
00076   const unsigned long RELATION_LABELLED_BY = 0x04;

  /**
   * This object is a member of a group of one or more objects. When there is
   * more than one object in the group each member may have one and the same
   * target, e.g. a grouping object.  It is also possible that each member has
   * multiple additional targets, e.g. one for every other member in the group.
   */
00084   const unsigned long RELATION_MEMBER_OF = 0x05;

  /**
   * This object is a child of a target object.
   */
00089   const unsigned long RELATION_NODE_CHILD_OF = 0x06;

  /**
   * Content flows from this object to a target object, i.e. has content that
   * flows logically to another object in a sequential way, e.g. text flow.
   */
00095   const unsigned long RELATION_FLOWS_TO = 0x07;

  /**
   * Content flows to this object from a target object, i.e. has content that
   * flows logically from another object in a sequential way, e.g. text flow.
   */
00101   const unsigned long RELATION_FLOWS_FROM = 0x08;

  /**
   * This object is a sub window of a target object.
   */
00106   const unsigned long RELATION_SUBWINDOW_OF = 0x09;

  /**
   * This object embeds a target object. This relation can be used on the
   * OBJID_CLIENT accessible for a top level window to show where the content
   * areas are.
   */
00113   const unsigned long RELATION_EMBEDS = 0x0a;

  /**
   * This object is embedded by a target object.
   */
00118   const unsigned long RELATION_EMBEDDED_BY = 0x0b;

  /**
   * This object is a transient component related to the target object. When
   * this object is activated the target object doesn't loose focus.
   */
00124   const unsigned long RELATION_POPUP_FOR = 0x0c;

  /**
   * This object is a parent window of the target object.
   */
00129   const unsigned long RELATION_PARENT_WINDOW_OF = 0x0d;

  /**
   * This object is described by the target object.
   */
00134   const unsigned long RELATION_DESCRIBED_BY = 0x0e;

  /**
   * This object is describes the target object.
   */
00139   const unsigned long RELATION_DESCRIPTION_FOR = 0x0f;

  // Last relation that is standard to desktop accessibility APIs
  const unsigned long RELATION_LAST = RELATION_DESCRIPTION_FOR;

  /**
   * Part of a form/dialog with a related default button. It is used for
   * MSAA only, no for IA2 nor ATK.
   */
00148   const unsigned long RELATION_DEFAULT_BUTTON = 0x4000;

  /**
   * Returns the type of the relation.
   */
00153   readonly attribute unsigned long relationType;

  /**
   * Returns the number of targets for this relation.
   */
00158   readonly attribute unsigned long targetsCount;

  /**
   * Returns one accessible relation target.
   * @param index - 0 based index of relation target.
   */
  nsIAccessible getTarget(in unsigned long index);

  /**
   * Returns multiple accessible relation targets.
   */
  nsIArray getTargets();
};

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