AtkAction

AtkAction — The ATK interface provided by UI components which the user can activate/interact with,

Synopsis



            AtkAction;
gboolean    atk_action_do_action            (AtkAction *action,
                                             gint i);
gint        atk_action_get_n_actions        (AtkAction *action);
const gchar* atk_action_get_description     (AtkAction *action,
                                             gint i);
const gchar* atk_action_get_name            (AtkAction *action,
                                             gint i);
const gchar* atk_action_get_localized_name  (AtkAction *action,
                                             gint i);
const gchar* atk_action_get_keybinding      (AtkAction *action,
                                             gint i);
gboolean    atk_action_set_description      (AtkAction *action,
                                             gint i,
                                             const gchar *desc);

Object Hierarchy

  GInterface
   +----AtkAction

Known Implementations

AtkAction is implemented by AtkHyperlink and AtkNoOpObject.

Description

AtkAction should be implemented by instances of AtkObject classes with which the user can interact directly, i.e. buttons, checkboxes, scrollbars, e.g. components which are not "passive" providers of UI information.

Exceptions: when the user interaction is already covered by another appropriate interface such as AtkEditableText (insert/delete test, etc.) or AtkValue (set value) then these actions should not be exposed by AtkAction as well.

Also note that the AtkAction API is limited in that parameters may not be passed to the object being activated; thus the action must be self-contained and specifiable via only a single "verb". Concrete examples include "press", "release", "click" for buttons, "drag" (meaning initiate drag) and "drop" for drag sources and drop targets, etc.

Though most UI interactions on components should be invocable via keyboard as well as mouse, there will generally be a close mapping between "mouse actions" that are possible on a component and the AtkActions. Where mouse and keyboard actions are redundant in effect, AtkAction should expose only one action rather than exposing redundant actions if possible. By convention we have been using "mouse centric" terminology for AtkAction names.

Details

AtkAction

typedef struct _AtkAction AtkAction;

The AtkAction structure does not contain any fields.


atk_action_do_action ()

gboolean    atk_action_do_action            (AtkAction *action,
                                             gint i);

Perform the specified action on the object.

action : a GObject instance that implements AtkActionIface
i : the action index corresponding to the action to be performed
Returns : TRUE if success, FALSE otherwise

atk_action_get_n_actions ()

gint        atk_action_get_n_actions        (AtkAction *action);

Gets the number of accessible actions available on the object. If there are more than one, the first one is considered the "default" action of the object.

action : a GObject instance that implements AtkActionIface
Returns : a the number of actions, or 0 if action does not implement this interface.

atk_action_get_description ()

const gchar* atk_action_get_description     (AtkAction *action,
                                             gint i);

Returns a description of the specified action of the object.

action : a GObject instance that implements AtkActionIface
i : the action index corresponding to the action to be performed
Returns :a description string, or NULL if action does not implement this interface.

atk_action_get_name ()

const gchar* atk_action_get_name            (AtkAction *action,
                                             gint i);

Returns the name of the specified action of the object.

action : a GObject instance that implements AtkActionIface
i : the action index corresponding to the action to be performed
Returns :a name string, or NULL if action does not implement this interface.

atk_action_get_localized_name ()

const gchar* atk_action_get_localized_name  (AtkAction *action,
                                             gint i);

Returns the localized name of the specified action of the object.

action : a GObject instance that implements AtkActionIface
i : the action index corresponding to the action to be performed
Returns :a name string, or NULL if action does not implement this interface.

atk_action_get_keybinding ()

const gchar* atk_action_get_keybinding      (AtkAction *action,
                                             gint i);

Returns a keybinding associated with this action, if one exists.

action : a GObject instance that implements AtkActionIface
i : the action index corresponding to the action to be performed
Returns :a string representing the keybinding, or NULL if there is no keybinding for this action.

atk_action_set_description ()

gboolean    atk_action_set_description      (AtkAction *action,
                                             gint i,
                                             const gchar *desc);

Sets a description of the specified action of the object.

action : a GObject instance that implements AtkActionIface
i : the action index corresponding to the action to be performed
desc : the description to be assigned to this action
Returns : a gboolean representing if the description was successfully set;