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gecko-dev/accessible/public/nsIAccessible.idl

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 2003
* the Initial Developer. All Rights Reserved.
*
* Original Author: Eric D Vaughan (evaughan@netscape.com)
* Contributor(s): Aaron Leventhal (aaronl@netscape.com)
* John Gaunt (jgaunt@netscape.com)
* Kyle Yuan (kyle.yuan@sun.com)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsISupports.idl"
#include "nsIDOMNode.idl"
#include "domstubs.idl"
/**
* A cross-platform interface that supports platform-specific
* accessibility APIs like MSAA and ATK. Contains the sum of what's needed
* to support IAccessible as well as ATK's generic accessibility objects.
* Can also be used by in-process accessibility clients to get information
* about objects in the accessible tree. The accessible tree is a subset of
* nodes in the DOM tree -- such as documents, focusable elements and text.
* Mozilla creates the implementations of nsIAccessible on demand.
* See http://www.mozilla.org/projects/ui/accessibility for more information.
*
* @status UNDER_REVIEW
*/
[scriptable, uuid(B26FBE47-9A5F-42a1-822B-082461AE4D6D)]
interface nsIAccessible : nsISupports
{
/**
* Parent node in accessible tree.
*/
readonly attribute nsIAccessible parent;
/**
* Next sibling in accessible tree
*/
readonly attribute nsIAccessible nextSibling;
/**
* Previous sibling in accessible tree
*/
readonly attribute nsIAccessible previousSibling;
/**
* First child in accessible tree
*/
readonly attribute nsIAccessible firstChild;
/**
* Last child in accessible tree
*/
readonly attribute nsIAccessible lastChild;
/**
* Number of accessible children
*/
readonly attribute long childCount;
/**
* Accessible name -- the main text equivalent for this node
*/
attribute AString name;
/**
* Accessible value -- a number or a secondary text equivalent for this node
*/
readonly attribute AString value;
/**
* Accessible description -- long text associated with this node
*/
readonly attribute AString description;
/**
* Provides localized string of accesskey name, such as Alt+D.
* The modifier may be affected by user and platform preferences.
* Usually alt+letter, or just the letter alone for menu items.
*/
readonly attribute AString keyboardShortcut;
/**
* Provides localized string of global keyboard accelerator, such
* as Ctrl+O for Open file
*/
readonly attribute AString keyBinding;
/**
* Enumerated accessible role. The values depend on platform because of variations.
* See the ROLE_* constants defined later in this file.
*/
readonly attribute unsigned long role;
/**
* Accessible states -- bit field which describes boolean properties of node.
* See the STATE_* constants defined later in this file.
*/
readonly attribute unsigned long state;
/**
* Extended accessible states -- second bit field describing node
*/
readonly attribute unsigned long extState;
/**
* Help text associated with node
*/
readonly attribute AString help;
/**
* Focused accessible child of node
*/
readonly attribute nsIAccessible focusedChild;
/**
* Accessible child which contains the coordinate at x,y
*/
nsIAccessible getChildAtPoint(in long x, in long y);
/**
* Nth accessible child using zero-based index
*/
nsIAccessible getChildAt(in long aChildIndex);
/**
* Accessible node geometrically to the right of this one
*/
nsIAccessible getAccessibleToRight();
/**
* Accessible node geometrically to the left of this one
*/
nsIAccessible getAccessibleToLeft();
/**
* Accessible node geometrically above this one
*/
nsIAccessible getAccessibleAbove();
/**
* Accessible node geometrically below this one
*/
nsIAccessible getAccessibleBelow();
void getBounds(out long x,
out long y,
out long width,
out long height);
/**
* Add this accessible to the current selection
*/
void addSelection();
/**
* Remove this accessible from the current selection
*/
void removeSelection();
/**
* Extend the current selection from its current accessible anchor node
* to this accessible
*/
void extendSelection();
/**
* Select this accessible node only
*/
void takeSelection();
/**
* Focus this accessible node,
* The state STATE_FOCUSABLE indicates whether this node is normally focusable.
* It is the callers responsibility to determine whether this node is focusable.
* accTakeFocus on a node that is not normally focusable (such as a table),
* will still set focus on that node, although normally that will not be visually
* indicated in most style sheets.
*/
void takeFocus();
/**
* The number of accessible actions associated with this accessible
*/
readonly attribute PRUint8 numActions;
/**
* The name of the accessible action at the given zero-based index
*/
AString getActionName(in PRUint8 index);
/**
* Perform the accessible action at the given zero-based index
* Action number 0 is the default action
*/
void doAction(in PRUint8 index);
/**
* Get the DOM node described by this accessible node
*/
nsIDOMNode getDOMNode();
/**
* Get a pointer to accessibility interface for this node, which is specific
* to the OS/accessibility toolkit we're running on.
*/
[noscript] void getNativeInterface(out voidPtr aOutAccessible);
/**
* MSAA State flags - used for bitfield. More than 1 allowed.
*/
const unsigned long STATE_UNAVAILABLE = 0x00000001; // Disabled, maps to opposite of Java ENABLED, Gnome/ATK SENSITIVE?
const unsigned long STATE_SELECTED = 0x00000002;
const unsigned long STATE_FOCUSED = 0x00000004;
const unsigned long STATE_PRESSED = 0x00000008;
const unsigned long STATE_CHECKED = 0x00000010;
const unsigned long STATE_MIXED = 0x00000020; // 3-state checkbox or toolbar button
const unsigned long STATE_READONLY = 0x00000040; // Maps to opposite of Java/Gnome/ATK EDITABLE state
const unsigned long STATE_HOTTRACKED = 0x00000080;
const unsigned long STATE_DEFAULT = 0x00000100;
const unsigned long STATE_EXPANDED = 0x00000200;
const unsigned long STATE_COLLAPSED = 0x00000400;
const unsigned long STATE_BUSY = 0x00000800;
const unsigned long STATE_FLOATING = 0x00001000; // Children "owned" not "contained" by parent
const unsigned long STATE_MARQUEED = 0x00002000;
const unsigned long STATE_ANIMATED = 0x00004000;
const unsigned long STATE_INVISIBLE = 0x00008000;
const unsigned long STATE_OFFSCREEN = 0x00010000;
const unsigned long STATE_SIZEABLE = 0x00020000;
const unsigned long STATE_MOVEABLE = 0x00040000;
const unsigned long STATE_SELFVOICING = 0x00080000;
const unsigned long STATE_FOCUSABLE = 0x00100000;
const unsigned long STATE_SELECTABLE = 0x00200000;
const unsigned long STATE_LINKED = 0x00400000;
const unsigned long STATE_TRAVERSED = 0x00800000;
const unsigned long STATE_MULTISELECTABLE = 0x01000000; // Supports multiple selection
const unsigned long STATE_EXTSELECTABLE = 0x02000000; // Supports extended selection
const unsigned long STATE_ALERT_LOW = 0x04000000; // This information is of low priority
const unsigned long STATE_ALERT_MEDIUM = 0x08000000; // This information is of medium priority
const unsigned long STATE_ALERT_HIGH = 0x10000000; // This information is of high priority
const unsigned long STATE_PROTECTED = 0x20000000; // Maps to Gnome's *Role* ATK_ROLE_PASSWD_TEXT, nothing for Java?
const unsigned long STATE_HASPOPUP = 0x40000000; // New in MSAA 2.0
/**
* Extended state flags (for now non-MSAA, for Java and Gnome/ATK support)
* This is only the states that there isn't already a mapping for in MSAA
* See www.accessmozilla.org/article.php?sid=11 for information on the mappings between accessibility API states
*/
const unsigned long STATE_INVALID = 0x00200000; // No explanation given
const unsigned long STATE_ACTIVE = 0x00400000; // This window is currently the active window
const unsigned long STATE_EXPANDABLE = 0x00800000; // An item that can be expanded, such as a tree item with children
const unsigned long STATE_MODAL = 0x01000000; // Must do something with control before leaving it
const unsigned long STATE_MULTI_LINE = 0x02000000; // Edit control that can take multiple lines
const unsigned long STATE_SENSITIVE = 0x04000000; // No explanation given
const unsigned long STATE_RESIZABLE = 0x08000000; // Object can be resized
const unsigned long STATE_SHOWING = 0x10000000; // This object and all of it's ancestors are visible
const unsigned long STATE_SINGLE_LINE = 0x20000000; // This text object can only contain 1 line of text
const unsigned long STATE_TRANSIENT = 0x40000000; // Tells accessibility aid "Don't add event listener - this object doesn't generate any". For example, could be used with higher level containers.
const unsigned long STATE_VERTICAL = 0x80000000; // Especially used for sliders and scrollbars
%{C++
#ifdef MOZ_ACCESSIBILITY_ATK
/**
* The following nsIAccessible roles are translated to ATK_ROLE_UNKNOWN
*
* ROLE_TITLEBAR, ROLE_SOUND, ROLE_CURSOR, ROLE_CARET, ROLE_BORDER,
* ROLE_GROUPING, ROLE_EQUATION, ROLE_COLUMN, ROLE_ROW, ROLE_LINK,
* ROLE_WHITESPACE, ROLE_CLOCK,
* ROLE_IPADDRESS
*
* ROLE_GRIP
* The object represents a special mouse pointer, which allows a user to
* manipulate user interface elements such as windows.
*
* ROLE_HELPBALLOON
* The object displays a Help topic in the form of a ToolTip or Help balloon.
*
* ROLE_PROPERTYPAGE
* The object represents a property sheet.
*
* ROLE_INDICATOR
* The object represents an indicator, such as a pointer graphic pointing to
* the current item.
*
* ROLE_HOTKEYFIELD
* The object represents a hot-key field that allow the user to enter a
* sequence of keystroke.
*
* The following ATK roles have no corresponding nsIAccessible roles. Perhaps
* there are not these types of widget/control in Mozilla, so don't need these
* ATK roles? Or need add some of them?
*
* ATK_ROLE_ARROW
* An arrow in one of the four cardinal directions.
*
* ATK_ROLE_INTERNAL_FRAME
* A frame-like object that is clipped by a desktop pane.
*
* ATK_ROLE_ACCEL_LABEL, ATK_ROLE_CANVAS, ATK_ROLE_CHECK_MENU_ITEM,
* ATK_ROLE_COLOR_CHOOSER, ATK_ROLE_DATE_EDITOR, ATK_ROLE_DESKTOP_ICON,
* ATK_ROLE_DESKTOP_FRAME, ATK_ROLE_DIRECTORY_PANE, ATK_ROLE_FILE_CHOOSER,
* ATK_ROLE_FILLER, ATK_ROLE_FONT_CHOOSER, ATK_ROLE_GLASS_PANE,
* ATK_ROLE_HTML_CONTAINER, ATK_ROLE_ICON, ATK_ROLE_LAYERED_PANE,
* ATK_ROLE_POPUP_MENU, ATK_ROLE_OPTION_PANE, ATK_ROLE_PASSWORD_TEXT,
* ATK_ROLE_RADIO_MENU_ITEM, ATK_ROLE_ROOT_PANE, ATK_ROLE_SCROLL_PANE,
* ATK_ROLE_SPLIT_PANE, ATK_ROLE_TEAR_OFF_MENU_ITEM, ATK_ROLE_TERMINAL,
* ATK_ROLE_TOGGLE_BUTTON, ATK_ROLE_TREE_TABLE, ATK_ROLE_VIEWPORT, ATK_ROLE_LABEL
*
* Important:
* Following value should keep synchronization with the definitions in atk.h
*/
enum { ROLE_TITLEBAR = 66U }; // ATK_ROLE_UNKNOWN
enum { ROLE_MENUBAR = 33U }; // ATK_ROLE_MENU_BAR
enum { ROLE_SCROLLBAR = 47U }; // ATK_ROLE_SCROLL_BAR
enum { ROLE_GRIP = 66U }; // ATK_ROLE_UNKNOWN
enum { ROLE_SOUND = 66U }; // ATK_ROLE_UNKNOWN
enum { ROLE_CURSOR = 66U }; // ATK_ROLE_UNKNOWN
enum { ROLE_CARET = 66U }; // ATK_ROLE_UNKNOWN
enum { ROLE_ALERT = 2U }; // ATK_ROLE_ALERT
enum { ROLE_WINDOW = 68U }; // ATK_ROLE_WINDOW
// An object used for drawing custom user interface elements
enum { ROLE_CLIENT = 18U }; // ATK_ROLE_DRAWING_AREA
enum { ROLE_MENUPOPUP = 32U }; // ATK_ROLE_MENU
enum { ROLE_MENUITEM = 34U }; // ATK_ROLE_MENU_ITEM
enum { ROLE_TOOLTIP = 63U }; // ATK_ROLE_TOOL_TIP
// The object represents a main window for a application
enum { ROLE_APPLICATION = 73U }; // ATK_ROLE_APPLICATION
// The object represents a document window, only for MDI windows
enum { ROLE_DOCUMENT = 68U }; // ATK_ROLE_WINDOW
enum { ROLE_PANE = 38U }; // ATK_ROLE_PANEL
enum { ROLE_CHART = 26U }; // ATK_ROLE_IMAGE
enum { ROLE_DIALOG = 16U }; // ATK_ROLE_DIALOG
enum { ROLE_BORDER = 66U }; // ATK_ROLE_UNKNOWN
enum { ROLE_GROUPING = 66U }; // ATK_ROLE_UNKNOWN
enum { ROLE_SEPARATOR = 49U }; // ATK_ROLE_SEPARATOR
enum { ROLE_TOOLBAR = 62U }; // ATK_ROLE_TOOL_BAR
enum { ROLE_STATUSBAR = 53U }; // ATK_ROLE_STATUSBAR
enum { ROLE_TABLE = 54U }; // ATK_ROLE_TABLE
// Or ATK_ROLE_TABLE_COLUMN_HEADER?
enum { ROLE_COLUMNHEADER = 10U };// ATK_ROLE_COLUMN_HEADER
// Or ATK_ROLE_TABLE_ROW_HEADER ?
enum { ROLE_ROWHEADER = 46U }; // ATK_ROLE_ROW_HEADER
enum { ROLE_COLUMN = 66U }; // ATK_ROLE_UNKNOWN
enum { ROLE_ROW = 66U }; // ATK_ROLE_UNKNOWN
enum { ROLE_CELL = 55U }; // ATK_ROLE_TABLE_CELL
enum { ROLE_LINK = 101U }; // ATK doesn't have such role now
enum { ROLE_HELPBALLOON = 66U }; // ATK_ROLE_UNKNOWN
// The object represents a cartoon-like graphic object
enum { ROLE_CHARACTER = 26U }; // ATK_ROLE_IMAGE
enum { ROLE_LIST = 30U }; // ATK_ROLE_LIST
enum { ROLE_LISTITEM = 31U }; // ATK_ROLE_LIST_ITEM
// The object represents an outline or tree structure
enum { ROLE_OUTLINE = 64U }; // ATK_ROLE_TREE
// The object represents an item in an outline or tree structure
enum { ROLE_OUTLINEITEM = 31U }; // ATK_ROLE_LIST_ITEM
enum { ROLE_PAGETAB = 36U }; // ATK_ROLE_PAGE_TAB
enum { ROLE_PROPERTYPAGE = 66U };// ATK_ROLE_UNKNOWN
enum { ROLE_INDICATOR = 66U }; // ATK_ROLE_UNKNOWN
enum { ROLE_GRAPHIC = 26U }; // ATK_ROLE_IMAGE
// Read-only text, can't be modified or selected
enum { ROLE_STATICTEXT = 60U }; // ATK_ROLE_TEXT
enum { ROLE_TEXT = 60U }; // ATK_ROLE_TEXT
enum { ROLE_PUSHBUTTON = 42U }; // ATK_ROLE_PUSH_BUTTON
enum { ROLE_CHECKBUTTON = 7U }; // ATK_ROLE_CHECK_BOX
enum { ROLE_RADIOBUTTON = 43U }; // ATK_ROLE_RADIO_BUTTON
enum { ROLE_COMBOBOX = 11U }; // ATK_ROLE_COMBO_BOX
// Just represents the calender control
enum { ROLE_DROPLIST = 5U }; // ATK_ROLE_CALENDAR
enum { ROLE_PROGRESSBAR = 41U }; // ATK_ROLE_PROGRESS_BAR
enum { ROLE_DIAL = 15U }; // ATK_ROLE_DIAL
enum { ROLE_HOTKEYFIELD = 66U }; // ATK_ROLE_UNKNOWN
enum { ROLE_SLIDER = 50U }; // ATK_ROLE_SLIDER
enum { ROLE_SPINBUTTON = 52U }; // ATK_ROLE_SPIN_BUTTON
enum { ROLE_DIAGRAM = 26U }; // ATK_ROLE_IMAGE
enum { ROLE_ANIMATION = 3U }; // ATK_ROLE_ANIMATION
enum { ROLE_EQUATION = 66U }; // ATK_ROLE_UNKNOWN
enum { ROLE_BUTTONDROPDOWN = 42U }; // ATK_ROLE_PUSH_BUTTON
enum { ROLE_BUTTONMENU = 42U }; // ATK_ROLE_PUSH_BUTTON
// Represents a button that drops down a grid
enum { ROLE_BUTTONDROPDOWNGRID = 66U }; // ATK_ROLE_UNKNOWN
enum { ROLE_WHITESPACE = 66U }; // ATK_ROLE_UNKNOWN
enum { ROLE_PAGETABLIST = 37U }; // ATK_ROLE_PAGE_TAB_LIST
enum { ROLE_CLOCK = 66U }; // ATK_ROLE_UNKNOWN
// Represents a button on the toolbar that has a drop-down list icon
// directly adjacent to the button
enum { ROLE_SPLITBUTTON = 42U }; // ATK_ROLE_PUSH_BUTTON
enum { ROLE_IPADDRESS = 66U }; // ATK_ROLE_UNKNOWN
enum { ROLE_NOTHING = 0U }; // ATK_ROLE_INVALID
#else
// MSAA Roles - only one per nsIAccessible or IAccessible
enum { ROLE_TITLEBAR = 1U };
enum { ROLE_MENUBAR = 2U };
enum { ROLE_SCROLLBAR = 3U };
enum { ROLE_GRIP = 4U };
enum { ROLE_SOUND = 5U };
enum { ROLE_CURSOR = 6U };
enum { ROLE_CARET = 7U };
enum { ROLE_ALERT = 8U };
enum { ROLE_WINDOW = 9U };
enum { ROLE_CLIENT = 10U };
enum { ROLE_MENUPOPUP = 11U };
enum { ROLE_MENUITEM = 12U };
enum { ROLE_TOOLTIP = 13U };
enum { ROLE_APPLICATION = 14U };
enum { ROLE_DOCUMENT = 15U };
enum { ROLE_PANE = 16U };
enum { ROLE_CHART = 17U };
enum { ROLE_DIALOG = 18U };
enum { ROLE_BORDER = 19U };
enum { ROLE_GROUPING = 20U };
enum { ROLE_SEPARATOR = 21U };
enum { ROLE_TOOLBAR = 22U };
enum { ROLE_STATUSBAR = 23U };
enum { ROLE_TABLE = 24U };
enum { ROLE_COLUMNHEADER = 25U };
enum { ROLE_ROWHEADER = 26U };
enum { ROLE_COLUMN = 27U };
enum { ROLE_ROW = 28U };
enum { ROLE_CELL = 29U };
enum { ROLE_LINK = 30U };
enum { ROLE_HELPBALLOON = 31U };
enum { ROLE_CHARACTER = 32U };
enum { ROLE_LIST = 33U };
enum { ROLE_LISTITEM = 34U };
enum { ROLE_OUTLINE = 35U };
enum { ROLE_OUTLINEITEM = 36U };
enum { ROLE_PAGETAB = 37U };
enum { ROLE_PROPERTYPAGE = 38U };
enum { ROLE_INDICATOR = 39U };
enum { ROLE_GRAPHIC = 40U };
enum { ROLE_STATICTEXT = 41U };
enum { ROLE_TEXT = 42U };
enum { ROLE_PUSHBUTTON = 43U };
enum { ROLE_CHECKBUTTON = 44U };
enum { ROLE_RADIOBUTTON = 45U };
enum { ROLE_COMBOBOX = 46U };
enum { ROLE_DROPLIST = 47U };
enum { ROLE_PROGRESSBAR = 48U };
enum { ROLE_DIAL = 49U };
enum { ROLE_HOTKEYFIELD = 50U };
enum { ROLE_SLIDER = 51U };
enum { ROLE_SPINBUTTON = 52U };
enum { ROLE_DIAGRAM = 53U };
enum { ROLE_ANIMATION = 54U };
enum { ROLE_EQUATION = 55U };
enum { ROLE_BUTTONDROPDOWN = 56U };
enum { ROLE_BUTTONMENU = 57U };
enum { ROLE_BUTTONDROPDOWNGRID = 58U };
enum { ROLE_WHITESPACE = 59U };
enum { ROLE_PAGETABLIST = 60U };
enum { ROLE_CLOCK = 61U };
enum { ROLE_SPLITBUTTON = 62U };
enum { ROLE_IPADDRESS = 63U };
enum { ROLE_NOTHING = 4294967295U };
#endif
%}
};
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