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"                              : 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

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