Module java.desktop
Package java.awt

Class List.AccessibleAWTList

java.lang.Object
javax.accessibility.AccessibleContext
java.awt.Component.AccessibleAWTComponent
java.awt.List.AccessibleAWTList
All Implemented Interfaces:
ActionListener, ItemListener, Serializable, EventListener, AccessibleComponent, AccessibleSelection
Enclosing class:
List
protected class List.AccessibleAWTList extends Component.AccessibleAWTComponent implements AccessibleSelection, ItemListener, ActionListener
This class implements accessibility support for the List class. It provides an implementation of the Java Accessibility API appropriate to list user-interface elements.
Since:
1.3
See Also:
Serialized Form

  • Constructor Details

    • AccessibleAWTList

      public AccessibleAWTList()
      Constructs new AccessibleAWTList

  • Method Details

    • actionPerformed

      public void actionPerformed​(ActionEvent event)
      Description copied from interface: ActionListener
      Invoked when an action occurs.
      Specified by:
      actionPerformed in interface ActionListener
      Parameters:
      event - the event to be processed

    • itemStateChanged

      public void itemStateChanged​(ItemEvent event)
      Description copied from interface: ItemListener
      Invoked when an item has been selected or deselected by the user. The code written for this method performs the operations that need to occur when an item is selected (or deselected).
      Specified by:
      itemStateChanged in interface ItemListener
      Parameters:
      event - the event to be processed

    • getAccessibleStateSet

      public AccessibleStateSet getAccessibleStateSet()
      Get the state set of this object.
      Overrides:
      getAccessibleStateSet in class Component.AccessibleAWTComponent
      Returns:
      an instance of AccessibleState containing the current state of the object
      See Also:
      AccessibleState

    • getAccessibleRole

      public AccessibleRole getAccessibleRole()
      Get the role of this object.
      Overrides:
      getAccessibleRole in class Component.AccessibleAWTComponent
      Returns:
      an instance of AccessibleRole describing the role of the object
      See Also:
      AccessibleRole

    • getAccessibleAt

      public Accessible getAccessibleAt​(Point p)
      Returns the Accessible child contained at the local coordinate Point, if one exists.
      Specified by:
      getAccessibleAt in interface AccessibleComponent
      Overrides:
      getAccessibleAt in class Component.AccessibleAWTComponent
      Parameters:
      p - the point defining the top-left corner of the Accessible, given in the coordinate space of the object's parent
      Returns:
      the Accessible at the specified location, if it exists

    • getAccessibleChildrenCount

      public int getAccessibleChildrenCount()
      Returns the number of accessible children in the object. If all of the children of this object implement Accessible, than this method should return the number of children of this object.
      Overrides:
      getAccessibleChildrenCount in class Component.AccessibleAWTComponent
      Returns:
      the number of accessible children in the object.

    • getAccessibleChild

      public Accessible getAccessibleChild​(int i)
      Return the nth Accessible child of the object.
      Overrides:
      getAccessibleChild in class Component.AccessibleAWTComponent
      Parameters:
      i - zero-based index of child
      Returns:
      the nth Accessible child of the object
      See Also:
      AccessibleContext.getAccessibleChildrenCount()

    • getAccessibleSelection

      public AccessibleSelection getAccessibleSelection()
      Get the AccessibleSelection associated with this object. In the implementation of the Java Accessibility API for this class, return this object, which is responsible for implementing the AccessibleSelection interface on behalf of itself.
      Overrides:
      getAccessibleSelection in class AccessibleContext
      Returns:
      this object
      See Also:
      AccessibleSelection

    • getAccessibleSelectionCount

      public int getAccessibleSelectionCount()
      Returns the number of items currently selected. If no items are selected, the return value will be 0.
      Specified by:
      getAccessibleSelectionCount in interface AccessibleSelection
      Returns:
      the number of items currently selected.

    • getAccessibleSelection

      public Accessible getAccessibleSelection​(int i)
      Returns an Accessible representing the specified selected item in the object. If there isn't a selection, or there are fewer items selected than the integer passed in, the return value will be null.
      Specified by:
      getAccessibleSelection in interface AccessibleSelection
      Parameters:
      i - the zero-based index of selected items
      Returns:
      an Accessible containing the selected item
      See Also:
      AccessibleSelection.getAccessibleSelectionCount()

    • isAccessibleChildSelected

      public boolean isAccessibleChildSelected​(int i)
      Returns true if the current child of this object is selected.
      Specified by:
      isAccessibleChildSelected in interface AccessibleSelection
      Parameters:
      i - the zero-based index of the child in this Accessible object.
      Returns:
      true if the current child of this object is selected; else false
      See Also:
      AccessibleContext.getAccessibleChild(int)

    • addAccessibleSelection

      public void addAccessibleSelection​(int i)
      Adds the specified selected item in the object to the object's selection. If the object supports multiple selections, the specified item is added to any existing selection, otherwise it replaces any existing selection in the object. If the specified item is already selected, this method has no effect.
      Specified by:
      addAccessibleSelection in interface AccessibleSelection
      Parameters:
      i - the zero-based index of selectable items
      See Also:
      AccessibleContext.getAccessibleChild(int)

    • removeAccessibleSelection

      public void removeAccessibleSelection​(int i)
      Removes the specified selected item in the object from the object's selection. If the specified item isn't currently selected, this method has no effect.
      Specified by:
      removeAccessibleSelection in interface AccessibleSelection
      Parameters:
      i - the zero-based index of selectable items
      See Also:
      AccessibleContext.getAccessibleChild(int)

    • clearAccessibleSelection

      public void clearAccessibleSelection()
      Clears the selection in the object, so that nothing in the object is selected.
      Specified by:
      clearAccessibleSelection in interface AccessibleSelection

    • selectAllAccessibleSelection

      public void selectAllAccessibleSelection()
      Causes every selected item in the object to be selected if the object supports multiple selections.
      Specified by:
      selectAllAccessibleSelection in interface AccessibleSelection