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/* ATK - Accessibility Toolkit
* Copyright 2001 Sun Microsystems Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __ATK_OBJECT_H__
#define __ATK_OBJECT_H__
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#include <glib-object.h>
#include <atk/atkstate.h>
#include <atk/atkrelationtype.h>
/*
* AtkObject represents the minimum information all accessible objects
* return. This information includes accessible name, accessible
* description, role and state of the object, as well information about
* its parent and children. It is also possible to obtain more specific
* accessibility information about a component if it supports one or more
* of the following interfaces:
*/
/**
*AtkRole:
*@ATK_ROLE_INVALID: Invalid role
*@ATK_ROLE_ACCEL_LABEL: A label which represents an accelerator
*@ATK_ROLE_ALERT: An object which is an alert to the user. Assistive
*Technologies typically respond to ATK_ROLE_ALERT by reading the entire
*onscreen contents of containers advertising this role. Should be used for
*warning dialogs, etc.
*@ATK_ROLE_ANIMATION: An object which is an animated image
*@ATK_ROLE_ARROW: An arrow in one of the four cardinal directions
*@ATK_ROLE_CALENDAR: An object that displays a calendar and allows the user to
*select a date
*@ATK_ROLE_CANVAS: An object that can be drawn into and is used to trap events
*@ATK_ROLE_CHECK_BOX: A choice that can be checked or unchecked and provides a
*separate indicator for the current state
*@ATK_ROLE_CHECK_MENU_ITEM: A menu item with a check box
*@ATK_ROLE_COLOR_CHOOSER: A specialized dialog that lets the user choose a
*color
*@ATK_ROLE_COLUMN_HEADER: The header for a column of data
*@ATK_ROLE_COMBO_BOX: A collapsible list of choices the user can select from
*@ATK_ROLE_DATE_EDITOR: An object whose purpose is to allow a user to edit a
*date
*@ATK_ROLE_DESKTOP_ICON: An inconifed internal frame within a DESKTOP_PANE
*@ATK_ROLE_DESKTOP_FRAME: A pane that supports internal frames and iconified
*versions of those internal frames
*@ATK_ROLE_DIAL: An object whose purpose is to allow a user to set a value
*@ATK_ROLE_DIALOG: A top level window with title bar and a border
*@ATK_ROLE_DIRECTORY_PANE: A pane that allows the user to navigate through and
*select the contents of a directory
*@ATK_ROLE_DRAWING_AREA: An object used for drawing custom user interface
*elements
*@ATK_ROLE_FILE_CHOOSER: A specialized dialog that lets the user choose a file
*@ATK_ROLE_FILLER: A object that fills up space in a user interface
*@ATK_ROLE_FONT_CHOOSER: A specialized dialog that lets the user choose a font
*@ATK_ROLE_FRAME: A top level window with a title bar, border, menubar, etc.
*@ATK_ROLE_GLASS_PANE: A pane that is guaranteed to be painted on top of all
*panes beneath it
*@ATK_ROLE_HTML_CONTAINER: A document container for HTML, whose children
*represent the document content
*@ATK_ROLE_ICON: A small fixed size picture, typically used to decorate
*components
*@ATK_ROLE_IMAGE: An object whose primary purpose is to display an image
*@ATK_ROLE_INTERNAL_FRAME: A frame-like object that is clipped by a desktop
*pane
*@ATK_ROLE_LABEL: An object used to present an icon or short string in an
*interface
*@ATK_ROLE_LAYERED_PANE: A specialized pane that allows its children to be
*drawn in layers, providing a form of stacking order
*@ATK_ROLE_LIST: An object that presents a list of objects to the user and
*allows the user to select one or more of them
*@ATK_ROLE_LIST_ITEM: An object that represents an element of a list
*@ATK_ROLE_MENU: An object usually found inside a menu bar that contains a list
*of actions the user can choose from
*@ATK_ROLE_MENU_BAR: An object usually drawn at the top of the primary dialog
*box of an application that contains a list of menus the user can choose from
*@ATK_ROLE_MENU_ITEM: An object usually contained in a menu that presents an
*action the user can choose
*@ATK_ROLE_OPTION_PANE: A specialized pane whose primary use is inside a DIALOG
*@ATK_ROLE_PAGE_TAB: An object that is a child of a page tab list
*@ATK_ROLE_PAGE_TAB_LIST: An object that presents a series of panels (or page
*tabs), one at a time, through some mechanism provided by the object
*@ATK_ROLE_PANEL: A generic container that is often used to group objects
*@ATK_ROLE_PASSWORD_TEXT: A text object uses for passwords, or other places
*where the text content is not shown visibly to the user
*@ATK_ROLE_POPUP_MENU: A temporary window that is usually used to offer the
*user a list of choices, and then hides when the user selects one of those
*choices
*@ATK_ROLE_PROGRESS_BAR: An object used to indicate how much of a task has been
*completed
*@ATK_ROLE_PUSH_BUTTON: An object the user can manipulate to tell the
*application to do something
*@ATK_ROLE_RADIO_BUTTON: A specialized check box that will cause other radio
*buttons in the same group to become unchecked when this one is checked
*@ATK_ROLE_RADIO_MENU_ITEM: A check menu item which belongs to a group. At each
*instant exactly one of the radio menu items from a group is selected
*@ATK_ROLE_ROOT_PANE: A specialized pane that has a glass pane and a layered
*pane as its children
*@ATK_ROLE_ROW_HEADER: The header for a row of data
*@ATK_ROLE_SCROLL_BAR: An object usually used to allow a user to incrementally
*view a large amount of data.
*@ATK_ROLE_SCROLL_PANE: An object that allows a user to incrementally view a
*large amount of information
*@ATK_ROLE_SEPARATOR: An object usually contained in a menu to provide a
*visible and logical separation of the contents in a menu
*@ATK_ROLE_SLIDER: An object that allows the user to select from a bounded
*range
*@ATK_ROLE_SPLIT_PANE: A specialized panel that presents two other panels at
*the same time
*@ATK_ROLE_SPIN_BUTTON: An object used to get an integer or floating point
*number from the user
*@ATK_ROLE_STATUSBAR: An object which reports messages of minor importance to
*the user
*@ATK_ROLE_TABLE: An object used to represent information in terms of rows and
*columns
*@ATK_ROLE_TABLE_CELL: A cell in a table
*@ATK_ROLE_TABLE_COLUMN_HEADER: The header for a column of a table
*@ATK_ROLE_TABLE_ROW_HEADER: The header for a row of a table
*@ATK_ROLE_TEAR_OFF_MENU_ITEM: A menu item used to tear off and reattach its
*menu
*@ATK_ROLE_TERMINAL: An object that represents an accessible terminal. @Since:
*ATK-0.6
*@ATK_ROLE_TEXT: An interactive widget that supports multiple lines of text and
* optionally accepts user input, but whose purpose is not to solicit user
*input. Thus ATK_ROLE_TEXT is appropriate for the text view in a plain text
*editor but inappropriate for an input field in a dialog box or web form. For
*widgets whose purpose is to solicit input from the user, see ATK_ROLE_ENTRY
*and ATK_ROLE_PASSWORD_TEXT. For generic objects which display a brief amount
*of textual information, see ATK_ROLE_STATIC.
*@ATK_ROLE_TOGGLE_BUTTON: A specialized push button that can be checked or
*unchecked, but does not provide a separate indicator for the current state
*@ATK_ROLE_TOOL_BAR: A bar or palette usually composed of push buttons or
*toggle buttons
*@ATK_ROLE_TOOL_TIP: An object that provides information about another object
*@ATK_ROLE_TREE: An object used to represent hierarchical information to the
*user
*@ATK_ROLE_TREE_TABLE: An object capable of expanding and collapsing rows as
*well as showing multiple columns of data. @Since: ATK-0.7
*@ATK_ROLE_UNKNOWN: The object contains some Accessible information, but its
*role is not known
*@ATK_ROLE_VIEWPORT: An object usually used in a scroll pane
*@ATK_ROLE_WINDOW: A top level window with no title or border.
*@ATK_ROLE_HEADER: An object that serves as a document header. @Since:
*ATK-1.1.1
*@ATK_ROLE_FOOTER: An object that serves as a document footer. @Since:
*ATK-1.1.1
*@ATK_ROLE_PARAGRAPH: An object which is contains a paragraph of text content.
*@Since: ATK-1.1.1
*@ATK_ROLE_RULER: An object which describes margins and tab stops, etc. for
*text objects which it controls (should have CONTROLLER_FOR relation to such).
*@Since: ATK-1.1.1
*@ATK_ROLE_APPLICATION: The object is an application object, which may contain
*@ATK_ROLE_FRAME objects or other types of accessibles. The root accessible of
*any application's ATK hierarchy should have ATK_ROLE_APPLICATION. @Since:
*ATK-1.1.4
*@ATK_ROLE_AUTOCOMPLETE: The object is a dialog or list containing items for
*insertion into an entry widget, for instance a list of words for completion of
*a text entry. @Since: ATK-1.3
*@ATK_ROLE_EDITBAR: The object is an editable text object in a toolbar. @Since:
*ATK-1.5
*@ATK_ROLE_EMBEDDED: The object is an embedded container within a document or
*panel. This role is a grouping "hint" indicating that the contained objects
*share a context. @Since: ATK-1.7.2
*@ATK_ROLE_ENTRY: The object is a component whose textual content may be
*entered or modified by the user, provided @ATK_STATE_EDITABLE is present.
*@Since: ATK-1.11
*@ATK_ROLE_CHART: The object is a graphical depiction of quantitative data. It
*may contain multiple subelements whose attributes and/or description may be
*queried to obtain both the quantitative data and information about how the
*data is being presented. The LABELLED_BY relation is particularly important in
*interpreting objects of this type, as is the accessible-description property.
*@Since: ATK-1.11
*@ATK_ROLE_CAPTION: The object contains descriptive information, usually
*textual, about another user interface element such as a table, chart, or
*image. @Since: ATK-1.11
*@ATK_ROLE_DOCUMENT_FRAME: The object is a visual frame or container which
*contains a view of document content. Document frames may occur within another
*Document instance, in which case the second document may be said to be
*embedded in the containing instance. HTML frames are often
*ROLE_DOCUMENT_FRAME. Either this object, or a singleton descendant, should
*implement the Document interface. @Since: ATK-1.11
*@ATK_ROLE_HEADING: The object serves as a heading for content which follows it
*in a document. The 'heading level' of the heading, if availabe, may be
*obtained by querying the object's attributes.
*@ATK_ROLE_PAGE: The object is a containing instance which encapsulates a page
*of information. @ATK_ROLE_PAGE is used in documents and content which support
*a paginated navigation model. @Since: ATK-1.11
*@ATK_ROLE_SECTION: The object is a containing instance of document content
*which constitutes a particular 'logical' section of the document. The type of
*content within a section, and the nature of the section division itself, may
*be obtained by querying the object's attributes. Sections may be nested.
*@Since: ATK-1.11
*@ATK_ROLE_REDUNDANT_OBJECT: The object is redundant with another object in the
*hierarchy, and is exposed for purely technical reasons. Objects of this role
*should normally be ignored by clients. @Since: ATK-1.11
*@ATK_ROLE_FORM: The object is a container for form controls, for instance as
*part of a web form or user-input form within a document. This role is
*primarily a tag/convenience for clients when navigating complex documents, it
*is not expected that ordinary GUI containers will always have ATK_ROLE_FORM.
*@Since: ATK-1.12.0
*@ATK_ROLE_LINK: The object is a hypertext anchor, i.e. a "link" in a
* hypertext document. Such objects are distinct from 'inline'
* content which may also use the Hypertext/Hyperlink interfaces
* to indicate the range/location within a text object where
* an inline or embedded object lies. @Since: ATK-1.12.1
*@ATK_ROLE_INPUT_METHOD_WINDOW: The object is a window or similar viewport
* which is used to allow composition or input of a 'complex character',
* in other words it is an "input method window." @Since: ATK-1.12.1
*@ATK_ROLE_TABLE_ROW: A row in a table. @Since: ATK-2.1.0
*@ATK_ROLE_TREE_ITEM: An object that represents an element of a tree. @Since:
*ATK-2.1.0
*@ATK_ROLE_DOCUMENT_SPREADSHEET: A document frame which contains a spreadsheet.
*@Since: ATK-2.1.0
*@ATK_ROLE_DOCUMENT_PRESENTATION: A document frame which contains a
*presentation or slide content. @Since: ATK-2.1.0
*@ATK_ROLE_DOCUMENT_TEXT: A document frame which contains textual content, such
*as found in a word processing application. @Since: ATK-2.1.0
*@ATK_ROLE_DOCUMENT_WEB: A document frame which contains HTML or other markup
*suitable for display in a web browser. @Since: ATK-2.1.0
*@ATK_ROLE_DOCUMENT_EMAIL: A document frame which contains email content to be
*displayed or composed either in plain text or HTML. @Since: ATK-2.1.0
*@ATK_ROLE_COMMENT: An object found within a document and designed to present a
*comment, note, or other annotation. In some cases, this object might not be
*visible until activated. @Since: ATK-2.1.0
*@ATK_ROLE_LIST_BOX: A non-collapsible list of choices the user can select
*from. @Since: ATK-2.1.0
*@ATK_ROLE_GROUPING: A group of related widgets. This group typically has a
*label. @Since: ATK-2.1.0
*@ATK_ROLE_IMAGE_MAP: An image map object. Usually a graphic with multiple
*hotspots, where each hotspot can be activated resulting in the loading of
*another document or section of a document. @Since: ATK-2.1.0
*@ATK_ROLE_NOTIFICATION: A transitory object designed to present a message to
*the user, typically at the desktop level rather than inside a particular
*application. @Since: ATK-2.1.0
*@ATK_ROLE_INFO_BAR: An object designed to present a message to the user within
*an existing window. @Since: ATK-2.1.0
*@ATK_ROLE_LEVEL_BAR: A bar that serves as a level indicator to, for instance,
*show the strength of a password or the state of a battery. @Since: ATK-2.7.3
*@ATK_ROLE_TITLE_BAR: A bar that serves as the title of a window or a
* dialog. @Since: ATK-2.12
*@ATK_ROLE_BLOCK_QUOTE: An object which contains a text section
* that is quoted from another source. @Since: ATK-2.12
*@ATK_ROLE_AUDIO: An object which represents an audio element. @Since: ATK-2.12
*@ATK_ROLE_VIDEO: An object which represents a video element. @Since: ATK-2.12
*@ATK_ROLE_DEFINITION: A definition of a term or concept. @Since: ATK-2.12
*@ATK_ROLE_ARTICLE: A section of a page that consists of a
* composition that forms an independent part of a document, page, or
* site. Examples: A blog entry, a news story, a forum post. @Since:
* ATK-2.12
*@ATK_ROLE_LANDMARK: A region of a web page intended as a
* navigational landmark. This is designed to allow Assistive
* Technologies to provide quick navigation among key regions within a
* document. @Since: ATK-2.12
*@ATK_ROLE_LOG: A text widget or container holding log content, such
* as chat history and error logs. In this role there is a
* relationship between the arrival of new items in the log and the
* reading order. The log contains a meaningful sequence and new
* information is added only to the end of the log, not at arbitrary
* points. @Since: ATK-2.12
*@ATK_ROLE_MARQUEE: A container where non-essential information
* changes frequently. Common usages of marquee include stock tickers
* and ad banners. The primary difference between a marquee and a log
* is that logs usually have a meaningful order or sequence of
* important content changes. @Since: ATK-2.12
*@ATK_ROLE_MATH: A text widget or container that holds a mathematical
* expression. @Since: ATK-2.12
*@ATK_ROLE_RATING: A widget whose purpose is to display a rating,
* such as the number of stars associated with a song in a media
* player. Objects of this role should also implement
* AtkValue. @Since: ATK-2.12
*@ATK_ROLE_TIMER: An object containing a numerical counter which
* indicates an amount of elapsed time from a start point, or the time
* remaining until an end point. @Since: ATK-2.12
*@ATK_ROLE_DESCRIPTION_LIST: An object that represents a list of
* term-value groups. A term-value group represents a individual
* description and consist of one or more names
* (ATK_ROLE_DESCRIPTION_TERM) followed by one or more values
* (ATK_ROLE_DESCRIPTION_VALUE). For each list, there should not be
* more than one group with the same term name. @Since: ATK-2.12
*@ATK_ROLE_DESCRIPTION_TERM: An object that represents the term, or
* name, part of a term-description group in a description
* list. @Since: ATK-2.12
*@ATK_ROLE_DESCRIPTION_VALUE: An object that represents the
* description, definition or value of a term-description group in a
* description list. The values within a group are alternatives,
* meaning that you can have several ATK_ROLE_DESCRIPTION_VALUE for a
* given ATK_ROLE_DESCRIPTION_TERM. @Since: ATK-2.12
*@ATK_ROLE_STATIC: A generic non-container object whose purpose is to display a
* brief amount of information to the user and whose role is known by the
* implementor but lacks semantic value for the user. Examples in which
* ATK_ROLE_STATIC is appropriate include the message displayed in a message box
* and an image used as an alternative means to display text. ATK_ROLE_STATIC
* should not be applied to widgets which are traditionally interactive, objects
* which display a significant amount of content, or any object which has an
* accessible relation pointing to another object. Implementors should expose
*the displayed information through the accessible name of the object. If doing
*so seems inappropriate, it may indicate that a different role should be used.
*For labels which describe another widget, see ATK_ROLE_LABEL. For text views,
*see ATK_ROLE_TEXT. For generic containers, see ATK_ROLE_PANEL. For objects
*whose role is not known by the implementor, see ATK_ROLE_UNKNOWN. @Since:
*ATK-2.16.
*@ATK_ROLE_MATH_FRACTION: An object that represents a mathematical fraction.
* @Since: ATK-2.16.
*@ATK_ROLE_MATH_ROOT: An object that represents a mathematical expression
* displayed with a radical. @Since: ATK-2.16.
*@ATK_ROLE_SUBSCRIPT: An object that contains text that is displayed as a
* subscript. @Since: ATK-2.16.
*@ATK_ROLE_SUPERSCRIPT: An object that contains text that is displayed as a
* superscript. @Since: ATK-2.16.
*@ATK_ROLE_FOOTNOTE: An object that contains the text of a footnote. @Since:
*ATK-2.26.
*@ATK_ROLE_CONTENT_DELETION: Content previously deleted or proposed to be
* deleted, e.g. in revision history or a content view providing suggestions
* from reviewers. (Since: 2.34)
*@ATK_ROLE_CONTENT_INSERTION: Content previously inserted or proposed to be
* inserted, e.g. in revision history or a content view providing suggestions
* from reviewers. (Since: 2.34)
*@ATK_ROLE_MARK: A run of content that is marked or highlighted, such as for
* reference purposes, or to call it out as having a special purpose. If the
* marked content has an associated section in the document elaborating on the
* reason for the mark, then %ATK_RELATION_DETAILS should be used on the mark
* to point to that associated section. In addition, the reciprocal relation
* %ATK_RELATION_DETAILS_FOR should be used on the associated content section
* to point back to the mark. (Since: 2.36)
*@ATK_ROLE_SUGGESTION: A container for content that is called out as a proposed
* change from the current version of the document, such as by a reviewer of the
* content. This role should include either %ATK_ROLE_CONTENT_DELETION and/or
* %ATK_ROLE_CONTENT_INSERTION children, in any order, to indicate what the
* actual change is. (Since: 2.36)
*@ATK_ROLE_LAST_DEFINED: not a valid role, used for finding end of the
*enumeration
*
* Describes the role of an object
*
* These are the built-in enumerated roles that UI components can have in
* ATK. Other roles may be added at runtime, so an AtkRole >=
* ATK_ROLE_LAST_DEFINED is not necessarily an error.
**/
typedef enum {
ATK_ROLE_INVALID = 0,
ATK_ROLE_ACCEL_LABEL, /*<nick=accelerator-label>*/
ATK_ROLE_ALERT,
ATK_ROLE_ANIMATION,
ATK_ROLE_ARROW,
ATK_ROLE_CALENDAR,
ATK_ROLE_CANVAS,
ATK_ROLE_CHECK_BOX,
ATK_ROLE_CHECK_MENU_ITEM,
ATK_ROLE_COLOR_CHOOSER,
ATK_ROLE_COLUMN_HEADER,
ATK_ROLE_COMBO_BOX,
ATK_ROLE_DATE_EDITOR,
ATK_ROLE_DESKTOP_ICON,
ATK_ROLE_DESKTOP_FRAME,
ATK_ROLE_DIAL,
ATK_ROLE_DIALOG,
ATK_ROLE_DIRECTORY_PANE,
ATK_ROLE_DRAWING_AREA,
ATK_ROLE_FILE_CHOOSER,
ATK_ROLE_FILLER,
ATK_ROLE_FONT_CHOOSER,
ATK_ROLE_FRAME,
ATK_ROLE_GLASS_PANE,
ATK_ROLE_HTML_CONTAINER,
ATK_ROLE_ICON,
ATK_ROLE_IMAGE,
ATK_ROLE_INTERNAL_FRAME,
ATK_ROLE_LABEL,
ATK_ROLE_LAYERED_PANE,
ATK_ROLE_LIST,
ATK_ROLE_LIST_ITEM,
ATK_ROLE_MENU,
ATK_ROLE_MENU_BAR,
ATK_ROLE_MENU_ITEM,
ATK_ROLE_OPTION_PANE,
ATK_ROLE_PAGE_TAB,
ATK_ROLE_PAGE_TAB_LIST,
ATK_ROLE_PANEL,
ATK_ROLE_PASSWORD_TEXT,
ATK_ROLE_POPUP_MENU,
ATK_ROLE_PROGRESS_BAR,
ATK_ROLE_PUSH_BUTTON,
ATK_ROLE_RADIO_BUTTON,
ATK_ROLE_RADIO_MENU_ITEM,
ATK_ROLE_ROOT_PANE,
ATK_ROLE_ROW_HEADER,
ATK_ROLE_SCROLL_BAR,
ATK_ROLE_SCROLL_PANE,
ATK_ROLE_SEPARATOR,
ATK_ROLE_SLIDER,
ATK_ROLE_SPLIT_PANE,
ATK_ROLE_SPIN_BUTTON,
ATK_ROLE_STATUSBAR,
ATK_ROLE_TABLE,
ATK_ROLE_TABLE_CELL,
ATK_ROLE_TABLE_COLUMN_HEADER,
ATK_ROLE_TABLE_ROW_HEADER,
ATK_ROLE_TEAR_OFF_MENU_ITEM,
ATK_ROLE_TERMINAL,
ATK_ROLE_TEXT,
ATK_ROLE_TOGGLE_BUTTON,
ATK_ROLE_TOOL_BAR,
ATK_ROLE_TOOL_TIP,
ATK_ROLE_TREE,
ATK_ROLE_TREE_TABLE,
ATK_ROLE_UNKNOWN,
ATK_ROLE_VIEWPORT,
ATK_ROLE_WINDOW,
ATK_ROLE_HEADER,
ATK_ROLE_FOOTER,
ATK_ROLE_PARAGRAPH,
ATK_ROLE_RULER,
ATK_ROLE_APPLICATION,
ATK_ROLE_AUTOCOMPLETE,
ATK_ROLE_EDITBAR,
ATK_ROLE_EMBEDDED,
ATK_ROLE_ENTRY,
ATK_ROLE_CHART,
ATK_ROLE_CAPTION,
ATK_ROLE_DOCUMENT_FRAME,
ATK_ROLE_HEADING,
ATK_ROLE_PAGE,
ATK_ROLE_SECTION,
ATK_ROLE_REDUNDANT_OBJECT,
ATK_ROLE_FORM,
ATK_ROLE_LINK,
ATK_ROLE_INPUT_METHOD_WINDOW,
ATK_ROLE_TABLE_ROW,
ATK_ROLE_TREE_ITEM,
ATK_ROLE_DOCUMENT_SPREADSHEET,
ATK_ROLE_DOCUMENT_PRESENTATION,
ATK_ROLE_DOCUMENT_TEXT,
ATK_ROLE_DOCUMENT_WEB,
ATK_ROLE_DOCUMENT_EMAIL,
ATK_ROLE_COMMENT,
ATK_ROLE_LIST_BOX,
ATK_ROLE_GROUPING,
ATK_ROLE_IMAGE_MAP,
ATK_ROLE_NOTIFICATION,
ATK_ROLE_INFO_BAR,
ATK_ROLE_LEVEL_BAR,
ATK_ROLE_TITLE_BAR,
ATK_ROLE_BLOCK_QUOTE,
ATK_ROLE_AUDIO,
ATK_ROLE_VIDEO,
ATK_ROLE_DEFINITION,
ATK_ROLE_ARTICLE,
ATK_ROLE_LANDMARK,
ATK_ROLE_LOG,
ATK_ROLE_MARQUEE,
ATK_ROLE_MATH,
ATK_ROLE_RATING,
ATK_ROLE_TIMER,
ATK_ROLE_DESCRIPTION_LIST,
ATK_ROLE_DESCRIPTION_TERM,
ATK_ROLE_DESCRIPTION_VALUE,
ATK_ROLE_STATIC,
ATK_ROLE_MATH_FRACTION,
ATK_ROLE_MATH_ROOT,
ATK_ROLE_SUBSCRIPT,
ATK_ROLE_SUPERSCRIPT,
ATK_ROLE_FOOTNOTE,
ATK_ROLE_CONTENT_DELETION,
ATK_ROLE_CONTENT_INSERTION,
ATK_ROLE_MARK,
ATK_ROLE_SUGGESTION,
ATK_ROLE_LAST_DEFINED
} AtkRole;
AtkRole atk_role_register(const gchar* name);
/**
*AtkLayer:
*@ATK_LAYER_INVALID: The object does not have a layer
*@ATK_LAYER_BACKGROUND: This layer is reserved for the desktop background
*@ATK_LAYER_CANVAS: This layer is used for Canvas components
*@ATK_LAYER_WIDGET: This layer is normally used for components
*@ATK_LAYER_MDI: This layer is used for layered components
*@ATK_LAYER_POPUP: This layer is used for popup components, such as menus
*@ATK_LAYER_OVERLAY: This layer is reserved for future use.
*@ATK_LAYER_WINDOW: This layer is used for toplevel windows.
*
* Describes the layer of a component
*
* These enumerated "layer values" are used when determining which UI
* rendering layer a component is drawn into, which can help in making
* determinations of when components occlude one another.
**/
typedef enum {
ATK_LAYER_INVALID,
ATK_LAYER_BACKGROUND,
ATK_LAYER_CANVAS,
ATK_LAYER_WIDGET,
ATK_LAYER_MDI,
ATK_LAYER_POPUP,
ATK_LAYER_OVERLAY,
ATK_LAYER_WINDOW
} AtkLayer;
/**
* AtkAttributeSet:
*
* This is a singly-linked list (a #GSList) of #AtkAttribute. It is
* used by atk_text_get_run_attributes(), atk_text_get_default_attributes()
* and atk_editable_text_set_run_attributes()
**/
typedef GSList AtkAttributeSet;
/**
* AtkAttribute:
* @name: The attribute name. Call atk_text_attr_get_name()
* @value: the value of the attribute, represented as a string.
* Call atk_text_attr_get_value() for those which are strings.
* For values which are numbers, the string representation of the number
* is in value.
*
* A string name/value pair representing a text attribute.
**/
typedef struct _AtkAttribute AtkAttribute;
struct _AtkAttribute {
gchar* name;
gchar* value;
};
#define ATK_TYPE_OBJECT (atk_object_get_type())
#define ATK_OBJECT(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj), ATK_TYPE_OBJECT, AtkObject))
#define ATK_OBJECT_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass), ATK_TYPE_OBJECT, AtkObjectClass))
#define ATK_IS_OBJECT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), ATK_TYPE_OBJECT))
#define ATK_IS_OBJECT_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass), ATK_TYPE_OBJECT))
#define ATK_OBJECT_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj), ATK_TYPE_OBJECT, AtkObjectClass))
#define ATK_TYPE_IMPLEMENTOR (atk_implementor_get_type())
#define ATK_IS_IMPLEMENTOR(obj) \
G_TYPE_CHECK_INSTANCE_TYPE((obj), ATK_TYPE_IMPLEMENTOR)
#define ATK_IMPLEMENTOR(obj) \
G_TYPE_CHECK_INSTANCE_CAST((obj), ATK_TYPE_IMPLEMENTOR, AtkImplementor)
#define ATK_IMPLEMENTOR_GET_IFACE(obj) \
(G_TYPE_INSTANCE_GET_INTERFACE((obj), ATK_TYPE_IMPLEMENTOR, \
AtkImplementorIface))
typedef struct _AtkImplementor AtkImplementor; /* dummy typedef */
typedef struct _AtkImplementorIface AtkImplementorIface;
typedef struct _AtkObject AtkObject;
typedef struct _AtkObjectClass AtkObjectClass;
typedef struct _AtkRelationSet AtkRelationSet;
typedef struct _AtkStateSet AtkStateSet;
/**
* AtkPropertyValues:
* @property_name: The name of the ATK property which is being presented or
*which has been changed.
* @old_value: The old property value, NULL; in some contexts this value is
*undefined (see note below).
* @new_value: The new value of the named property.
*
* @note: For most properties the old_value field of AtkPropertyValues will
* not contain a valid value.
*
* Currently, the only property for which old_value is used is
* accessible-state; for instance if there is a focus state the
* property change handler will be called for the object which lost the focus
* with the old_value containing an AtkState value corresponding to focused
* and the property change handler will be called for the object which
* received the focus with the new_value containing an AtkState value
* corresponding to focused.
*
**/
struct _AtkPropertyValues {
const gchar* property_name;
GValue old_value;
GValue new_value;
};
typedef struct _AtkPropertyValues AtkPropertyValues;
typedef gboolean (*AtkFunction)(gpointer data);
/*
* For most properties the old_value field of AtkPropertyValues will
* not contain a valid value.
*
* Currently, the only property for which old_value is used is
* accessible-state; for instance if there is a focus state the
* property change handler will be called for the object which lost the focus
* with the old_value containing an AtkState value corresponding to focused
* and the property change handler will be called for the object which
* received the focus with the new_value containing an AtkState value
* corresponding to focused.
*/
typedef void (*AtkPropertyChangeHandler)(AtkObject*, AtkPropertyValues*);
struct _AtkObject {
GObject parent;
gchar* description;
gchar* name;
AtkObject* accessible_parent;
AtkRole role;
AtkRelationSet* relation_set;
AtkLayer layer;
};
struct _AtkObjectClass {
GObjectClass parent;
/*
* Gets the accessible name of the object
*/
G_CONST_RETURN gchar* (*get_name)(AtkObject* accessible);
/*
* Gets the accessible description of the object
*/
G_CONST_RETURN gchar* (*get_description)(AtkObject* accessible);
/*
* Gets the accessible parent of the object
*/
AtkObject* (*get_parent)(AtkObject* accessible);
/*
* Gets the number of accessible children of the object
*/
gint (*get_n_children)(AtkObject* accessible);
/*
* Returns a reference to the specified accessible child of the object.
* The accessible children are 0-based so the first accessible child is
* at index 0, the second at index 1 and so on.
*/
AtkObject* (*ref_child)(AtkObject* accessible, gint i);
/*
* Gets the 0-based index of this object in its parent; returns -1 if the
* object does not have an accessible parent.
*/
gint (*get_index_in_parent)(AtkObject* accessible);
/*
* Gets the RelationSet associated with the object
*/
AtkRelationSet* (*ref_relation_set)(AtkObject* accessible);
/*
* Gets the role of the object
*/
AtkRole (*get_role)(AtkObject* accessible);
AtkLayer (*get_layer)(AtkObject* accessible);
gint (*get_mdi_zorder)(AtkObject* accessible);
/*
* Gets the state set of the object
*/
AtkStateSet* (*ref_state_set)(AtkObject* accessible);
/*
* Sets the accessible name of the object
*/
void (*set_name)(AtkObject* accessible, const gchar* name);
/*
* Sets the accessible description of the object
*/
void (*set_description)(AtkObject* accessible, const gchar* description);
/*
* Sets the accessible parent of the object
*/
void (*set_parent)(AtkObject* accessible, AtkObject* parent);
/*
* Sets the accessible role of the object
*/
void (*set_role)(AtkObject* accessible, AtkRole role);
/*
* Specifies a function to be called when a property changes value
*/
guint (*connect_property_change_handler)(AtkObject* accessible,
AtkPropertyChangeHandler* handler);
/*
* Removes a property change handler which was specified using
* connect_property_change_handler
*/
void (*remove_property_change_handler)(AtkObject* accessible,
guint handler_id);
void (*initialize)(AtkObject* accessible, gpointer data);
/*
* The signal handler which is executed when there is a change in the
* children of the object
*/
void (*children_changed)(AtkObject* accessible, guint change_index,
gpointer changed_child);
/*
* The signal handler which is executed when there is a focus event
* for an object.
*/
void (*focus_event)(AtkObject* accessible, gboolean focus_in);
/*
* The signal handler which is executed when there is a property_change
* signal for an object.
*/
void (*property_change)(AtkObject* accessible, AtkPropertyValues* values);
/*
* The signal handler which is executed when there is a state_change
* signal for an object.
*/
void (*state_change)(AtkObject* accessible, const gchar* name,
gboolean state_set);
/*
* The signal handler which is executed when there is a change in the
* visible data for an object
*/
void (*visible_data_changed)(AtkObject* accessible);
/*
* The signal handler which is executed when there is a change in the
* 'active' child or children of the object, for instance when
* interior focus changes in a table or list. This signal should be emitted
* by objects whose state includes ATK_STATE_MANAGES_DESCENDANTS.
*/
void (*active_descendant_changed)(AtkObject* accessible, gpointer* child);
/*
* Gets a list of properties applied to this object as a whole, as an
* #AtkAttributeSet consisting of name-value pairs. Since ATK 1.12
*/
AtkAttributeSet* (*get_attributes)(AtkObject* accessible);
const gchar* (*get_object_locale)(AtkObject* accessible);
AtkFunction pad1;
};
GType atk_object_get_type(void);
struct _AtkImplementorIface {
GTypeInterface parent;
AtkObject* (*ref_accessible)(AtkImplementor* implementor);
};
GType atk_implementor_get_type(void);
/*
* This method uses the ref_accessible method in AtkImplementorIface,
* if the object's class implements AtkImplementorIface.
* Otherwise it returns %NULL.
*
* IMPORTANT:
* Note also that because this method may return flyweight objects,
* it increments the returned AtkObject's reference count.
* Therefore it is the responsibility of the calling
* program to unreference the object when no longer needed.
* (c.f. gtk_widget_get_accessible() where this is not the case).
*/
AtkObject* atk_implementor_ref_accessible(AtkImplementor* implementor);
/*
* Properties directly supported by AtkObject
*/
G_CONST_RETURN gchar* atk_object_get_name(AtkObject* accessible);
G_CONST_RETURN gchar* atk_object_get_description(AtkObject* accessible);
AtkObject* atk_object_get_parent(AtkObject* accessible);
gint atk_object_get_n_accessible_children(AtkObject* accessible);
AtkObject* atk_object_ref_accessible_child(AtkObject* accessible, gint i);
AtkRelationSet* atk_object_ref_relation_set(AtkObject* accessible);
AtkRole atk_object_get_role(AtkObject* accessible);
AtkLayer atk_object_get_layer(AtkObject* accessible);
gint atk_object_get_mdi_zorder(AtkObject* accessible);
AtkAttributeSet* atk_object_get_attributes(AtkObject* accessible);
AtkStateSet* atk_object_ref_state_set(AtkObject* accessible);
gint atk_object_get_index_in_parent(AtkObject* accessible);
void atk_object_set_name(AtkObject* accessible, const gchar* name);
void atk_object_set_description(AtkObject* accessible,
const gchar* description);
void atk_object_set_parent(AtkObject* accessible, AtkObject* parent);
void atk_object_set_role(AtkObject* accessible, AtkRole role);
guint atk_object_connect_property_change_handler(
AtkObject* accessible, AtkPropertyChangeHandler* handler);
void atk_object_remove_property_change_handler(AtkObject* accessible,
guint handler_id);
void atk_object_notify_state_change(AtkObject* accessible, AtkState state,
gboolean value);
void atk_object_initialize(AtkObject* accessible, gpointer data);
G_CONST_RETURN gchar* atk_role_get_name(AtkRole role);
AtkRole atk_role_for_name(const gchar* name);
/* NEW in 1.1: convenience API */
gboolean atk_object_add_relationship(AtkObject* object,
AtkRelationType relationship,
AtkObject* target);
gboolean atk_object_remove_relationship(AtkObject* object,
AtkRelationType relationship,
AtkObject* target);
G_CONST_RETURN gchar* atk_role_get_localized_name(AtkRole role);
/* */
/*
* Note: the properties which are registered with the GType
* property registry, for type ATK_TYPE_OBJECT, are as follows:
*
* "accessible-name"
* "accessible-description"
* "accessible-parent"
* "accessible-role"
* "accessible-value"
* "accessible-component-layer"
* "accessible-component-zorder"
* "accessible-table-caption"
* "accessible-table-column-description"
* "accessible-table-column-header"
* "accessible-table-row-description"
* "accessible-table-row-header"
* "accessible-table-summary"
* "accessible-model"
*
* accessibility property change listeners should use the
* normal GObject property interfaces and "property-change"
* signal handler semantics to interpret the property change
* information relayed from AtkObject.
* (AtkObject instances will connect to the "notify"
* signal in their host objects, and relay the signals when appropriate).
*/
/* For other signals, see related interfaces
*
* AtkActionIface,
* AtkComponentIface,
* AtkHypertextIface,
* AtkImageIface,
* AtkSelectionIface,
* AtkTableIface,
* AtkTextIface,
* AtkValueIface.
*
* The usage model for obtaining these interface instances is:
* ATK_<interfacename>_GET_IFACE(GObject *accessible),
* where accessible, though specified as a GObject, is
* the AtkObject instance being queried.
* More usually, the interface will be used via a cast to the
* interface's corresponding "type":
*
* AtkText textImpl = ATK_TEXT(accessible);
* if (textImpl)
* {
* cpos = atk_text_get_caret_position(textImpl);
* }
*
* If it's known in advance that accessible implements AtkTextIface,
* this is shortened to:
*
* cpos = atk_text_get_caret_position (ATK_TEXT (accessible));
*/
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __ATK_OBJECT_H__ */