gecko-dev/other-licenses/ia2/AccessibleStates.idl

/*************************************************************************
 *
 *  File Name (AccessibleStates.idl)
 * 
 *  IAccessible2 IDL Specification 
 * 
 *  Copyright (c) 2007, 2010 Linux Foundation 
 *  Copyright (c) 2006 IBM Corporation 
 *  Copyright (c) 2000, 2006 Sun Microsystems, Inc. 
 *  All rights reserved. 
 *   
 *   
 *  Redistribution and use in source and binary forms, with or without 
 *  modification, are permitted provided that the following conditions 
 *  are met: 
 *   
 *   1. Redistributions of source code must retain the above copyright 
 *      notice, this list of conditions and the following disclaimer. 
 *   
 *   2. Redistributions in binary form must reproduce the above 
 *      copyright notice, this list of conditions and the following 
 *      disclaimer in the documentation and/or other materials 
 *      provided with the distribution. 
 *
 *   3. Neither the name of the Linux Foundation nor the names of its 
 *      contributors may be used to endorse or promote products 
 *      derived from this software without specific prior written 
 *      permission. 
 *   
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
 *  CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
 *  INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
 *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
 *  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 
 *  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
 *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
 *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
 *  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
 *  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
 *  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 
 *  EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 *   
 *  This BSD License conforms to the Open Source Initiative "Simplified 
 *  BSD License" as published at: 
 *  http://www.opensource.org/licenses/bsd-license.php 
 *   
 *  IAccessible2 is a trademark of the Linux Foundation. The IAccessible2 
 *  mark may be used in accordance with the Linux Foundation Trademark 
 *  Policy to indicate compliance with the IAccessible2 specification. 
 * 
 ************************************************************************/ 

import "objidl.idl";

typedef long AccessibleStates;

/** %IAccessible2 specific state bit constants

  This enum defines the state bits returned by IAccessible2::states.  The 
  %IAccessible2 state bits are in addition to those returned by MSAA.
*/
enum IA2States {

/** Indicates a window is currently the active window, or is an active subelement 
  within a container or table.

 This state can be used to indicate the current active item in a container, even 
  if the container itself is not currently active. In other words this would indicate
  the item that will get focus if you tab to the container.

 This information is important for knowing what to report for trees and potentially 
  other containers in a virtual buffer.

 Also, see ::IA2_STATE_MANAGES_DESCENDANTS for more information.
*/
IA2_STATE_ACTIVE =					0x1,

/** Indicates that the object is armed.

 Used to indicate that the control is "pressed" and will be invoked when the 
  actuator, e.g. a mouse button, is "released".  An AT which either monitors the 
  mouse or synthesizes mouse events might need to know that, and possibly a talking
  interface would even let the user know about it.  It could also potentially be
  useful to on screen keyboards or test tools since the information does indicate
  something about the state of the interface, for example, code operating asynchronously
  might need to wait for the armed state to change before doing something else.

*/
IA2_STATE_ARMED =					0x2,

/** Indicates the user interface object corresponding to this object no longer exists. */
IA2_STATE_DEFUNCT =					0x4,

/** An object with this state has a caret and implements the IAccessibleText interface.
  
 Such fields may be read-only, so STATE_SYSTEM_READONLY is valid in combination
  with IA2_STATE_EDITABLE.

*/
IA2_STATE_EDITABLE =				0x8,

/** Indicates the orientation of this object is horizontal. */
IA2_STATE_HORIZONTAL =				0x10,

/** Indicates this object is minimized and is represented only by an icon. */
IA2_STATE_ICONIFIED =				0x20,

/** Indicates an input validation failure. */
IA2_STATE_INVALID_ENTRY =			0x40,

/** Indicates that this object manages its children.

 Note: Due to the fact that MSAA's WinEvents don't allow the active child index
  to be passed on the IA2_EVENT_ACTIVE_DESCENDANT_CHANGED event, the manages
  descendants	scheme can't be used.  Instead the active child object has to fire
  MSAA's EVENT_OBJECT_FOCUS.  In a future release a new event mechanism may be
  added to provide for event specific data to be passed with the event.  At that
  time the IA2_EVENT_ACTIVE_DECENDENT_CHANGED event and
  IA2_STATE_MANAGES_DESCENDANTS state would be useful.
*/
IA2_STATE_MANAGES_DESCENDANTS =		0x80,

/** Indicates that an object is modal.

 Modal objects have the behavior that something must be done with the object 
  before the user can interact with an object in a different window.
*/
IA2_STATE_MODAL =					0x100,

/** Indicates this text object can contain multiple lines of text. */
IA2_STATE_MULTI_LINE =				0x200,

/** Indicates this object paints every pixel within its rectangular region. */
IA2_STATE_OPAQUE =					0x400,

/** Indicates that user interaction is required.

 An example of when this state is used is when a field in a form must be filled 
  before a form can be processed.
*/
IA2_STATE_REQUIRED =				0x800,

/** Indicates an object which supports text selection.

 Note: This is different than MSAA STATE_SYSTEM_SELECTABLE.
*/
IA2_STATE_SELECTABLE_TEXT =			0x1000,

/** Indicates that this text object can contain only a single line of text. */
IA2_STATE_SINGLE_LINE =				0x2000,

/** Indicates that the accessible object is stale.

 This state is used when the accessible object no longer accurately 
  represents the state of the object which it is representing such as when an
  object is transient or when an object has been or is in the process of being
  destroyed or when the object's index in its parent has changed.
*/
IA2_STATE_STALE =					0x4000,

/** Indicates that the object implements autocompletion.

 This state indicates that a text control will respond to the input of 
 one ore more characters and cause a sub-item to become selected.  The 
 selection may also result in events fired on the parent object.
*/
IA2_STATE_SUPPORTS_AUTOCOMPLETION =	0x8000,

/** Indicates this object is transient.

 An object has this state when its parent object has the state ::IA2_STATE_MANAGES_DESCENDANTS.
 For example, a list item object may be managed by its parent list object and may only 
 exist as long as the object is actually rendered.  Similarly a table cell's accessible 
 object may exist only while the cell has focus.  However, from the perspective of an 
 assistive technology a transient object behaves like a non-transient object.  As a 
 result it is likely that this state is not of use to an assistive technology, but it 
 is provided in case an assistive technology determines that knowledge of the transient 
 nature of the object is useful and also for harmony with the Linux accessibility API.

 Also, see ::IA2_STATE_MANAGES_DESCENDANTS for more information.
 */
IA2_STATE_TRANSIENT =				0x10000,

/** Indicates the orientation of this object is vertical. */
IA2_STATE_VERTICAL =				0x20000,

/** Indicates this object is checkable.

 The standard checkable objects are check boxes, radio buttons, check box menu
 items, radio menu items, and toggle buttons.  Since assistive technology will
 determine that these objects are checkable via the object's role the checkable
 state is not required.  However, this state is necessary in those cases where
 an object has a role which is not one of the previously mentioned roles.  An
 example is a table cell which indicates whether or not an email has an attachment,
 whether or not an mail is considered spam, and whether or not an email has been read.
 */
IA2_STATE_CHECKABLE =				0x40000,

/** Indicates this object is pinned.

 This state indicates that an object is fixed at a certain location.  One example
 is a browser tab that when pinned cannot be moved until unpinned.  Another example
 is a movable or floating object that when pinned remains in its pinned location
 until being unpinned.
 */
IA2_STATE_PINNED =					0x80000

};