AtkSelection

AtkSelection — The ATK interface implemented by container objects whose AtkObject children can be selected.

Synopsis




            AtkSelection;
gboolean    atk_selection_add_selection     (AtkSelection *selection,
                                             gint i);
gboolean    atk_selection_clear_selection   (AtkSelection *selection);
AtkObject*  atk_selection_ref_selection     (AtkSelection *selection,
                                             gint i);
gint        atk_selection_get_selection_count
                                            (AtkSelection *selection);
gboolean    atk_selection_is_child_selected (AtkSelection *selection,
                                             gint i);
gboolean    atk_selection_remove_selection  (AtkSelection *selection,
                                             gint i);
gboolean    atk_selection_select_all_selection
                                            (AtkSelection *selection);

Object Hierarchy


  GInterface
   +----AtkSelection

Known Implementations

AtkSelection is implemented by AtkNoOpObject.

Signals


"selection-changed"
            void        user_function      (AtkSelection *atkselection,
                                            gpointer      user_data)         : Run last

Description

AtkSelection should be implemented by UI components with children which are exposed by atk_object_ref_child and atk_object_get_n_children, if the use of the parent UI component ordinarily involves selection of one or more of the objects corresponding to those AtkObject children - for example, selectable lists.

Note that other types of "selection" (for instance text selection) are accomplished a other ATK interfaces - AtkSelection is limited to the selection/deselection of children.

Details

AtkSelection

typedef struct _AtkSelection AtkSelection;

The AtkAction structure does not contain any fields.

atk_selection_add_selection ()

gboolean    atk_selection_add_selection     (AtkSelection *selection,
                                             gint i);

Adds the specified accessible child of the object to the object's selection.

selection : a GObject instance that implements AtkSelectionIface
i : a gint specifying the child index.
Returns : TRUE if success, FALSE otherwise.

atk_selection_clear_selection ()

gboolean    atk_selection_clear_selection   (AtkSelection *selection);

Clears the selection in the object so that no children in the object are selected.

selection : a GObject instance that implements AtkSelectionIface
Returns : TRUE if success, FALSE otherwise.

atk_selection_ref_selection ()

AtkObject*  atk_selection_ref_selection     (AtkSelection *selection,
                                             gint i);

Gets a reference to the accessible object representing the specified selected child of the object. Note: callers should not rely on NULL or on a zero value for indication of whether AtkSelectionIface is implemented, they should use type checking/interface checking macros or the atk_get_accessible_value() convenience method.

selection : a GObject instance that implements AtkSelectionIface
i : a gint specifying the index in the selection set. (e.g. the ith selection as opposed to the ith child).
Returns : an AtkObject representing the selected accessible , or NULL if selection does not implement this interface.

atk_selection_get_selection_count ()

gint        atk_selection_get_selection_count
                                            (AtkSelection *selection);

Gets the number of accessible children currently selected. Note: callers should not rely on NULL or on a zero value for indication of whether AtkSelectionIface is implemented, they should use type checking/interface checking macros or the atk_get_accessible_value() convenience method.

selection : a GObject instance that implements AtkSelectionIface
Returns : a gint representing the number of items selected, or 0 if selection does not implement this interface.

atk_selection_is_child_selected ()

gboolean    atk_selection_is_child_selected (AtkSelection *selection,
                                             gint i);

Determines if the current child of this object is selected Note: callers should not rely on NULL or on a zero value for indication of whether AtkSelectionIface is implemented, they should use type checking/interface checking macros or the atk_get_accessible_value() convenience method.

selection : a GObject instance that implements AtkSelectionIface
i : a gint specifying the child index.
Returns : a gboolean representing the specified child is selected, or 0 if selection does not implement this interface.

atk_selection_remove_selection ()

gboolean    atk_selection_remove_selection  (AtkSelection *selection,
                                             gint i);

Removes the specified child of the object from the object's selection.

selection : a GObject instance that implements AtkSelectionIface
i : a gint specifying the index in the selection set. (e.g. the ith selection as opposed to the ith child).
Returns : TRUE if success, FALSE otherwise.

atk_selection_select_all_selection ()

gboolean    atk_selection_select_all_selection
                                            (AtkSelection *selection);

Causes every child of the object to be selected if the object supports multiple selections.

selection : a GObject instance that implements AtkSelectionIface
Returns : TRUE if success, FALSE otherwise.

Signal Details

The "selection-changed" signal

void        user_function                  (AtkSelection *atkselection,
                                            gpointer      user_data)         : Run last

The "selection-changed" signal is emitted by an object which implements AtkSelection interface when the selection changes.

atkselection : the object which received the signal.
user_data : user data set when the signal handler was connected.

See Also

AtkText