diff options
Diffstat (limited to 'libjava/java/awt/List.java')
-rw-r--r-- | libjava/java/awt/List.java | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/libjava/java/awt/List.java b/libjava/java/awt/List.java index 8fbbc07720e..e10cbaeeebf 100644 --- a/libjava/java/awt/List.java +++ b/libjava/java/awt/List.java @@ -47,6 +47,11 @@ import java.util.EventListener; import java.util.Vector; import javax.accessibility.Accessible; +import javax.accessibility.AccessibleContext; +import javax.accessibility.AccessibleRole; +import javax.accessibility.AccessibleSelection; +import javax.accessibility.AccessibleState; +import javax.accessibility.AccessibleStateSet; /** * Class that implements a listbox widget @@ -106,6 +111,7 @@ private ItemListener item_listeners; // The list of ActionListeners for this object. private ActionListener action_listeners; + /*************************************************************************/ /* @@ -1076,4 +1082,182 @@ paramString() { return (ItemListener[]) getListeners (ItemListener.class); } + + // Accessibility internal class + protected class AccessibleAWTList extends AccessibleAWTComponent + implements AccessibleSelection, ItemListener, ActionListener + { + protected class AccessibleAWTListChild extends AccessibleAWTComponent + implements Accessible + { + private int index; + private List parent; + + public AccessibleAWTListChild(List parent, int indexInParent) + { + this.parent = parent; + index = indexInParent; + if (parent == null) + index = -1; + } + + /* (non-Javadoc) + * @see javax.accessibility.Accessible#getAccessibleContext() + */ + public AccessibleContext getAccessibleContext() + { + return this; + } + + public AccessibleRole getAccessibleRole() + { + return AccessibleRole.LIST_ITEM; + } + + public AccessibleStateSet getAccessibleStateSet() + { + AccessibleStateSet states = super.getAccessibleStateSet(); + if (parent.isIndexSelected(index)) + states.add(AccessibleState.SELECTED); + return states; + } + + public int getAccessibleIndexInParent() + { + return index; + } + + } + + public AccessibleAWTList() + { + addItemListener(this); + addActionListener(this); + } + + public AccessibleRole getAccessibleRole() + { + return AccessibleRole.LIST; + } + + public AccessibleStateSet getAccessibleStateSet() + { + AccessibleStateSet states = super.getAccessibleStateSet(); + states.add(AccessibleState.SELECTABLE); + if (isMultipleMode()) + states.add(AccessibleState.MULTISELECTABLE); + return states; + } + + public int getAccessibleChildrenCount() + { + return getItemCount(); + } + + public Accessible getAccessibleChild(int i) + { + if (i >= getItemCount()) + return null; + return new AccessibleAWTListChild(List.this, i); + } + + /* (non-Javadoc) + * @see javax.accessibility.AccessibleSelection#getAccessibleSelectionCount() + */ + public int getAccessibleSelectionCount() + { + return getSelectedIndexes().length; + } + + /* (non-Javadoc) + * @see javax.accessibility.AccessibleSelection#getAccessibleSelection() + */ + public AccessibleSelection getAccessibleSelection() + { + return this; + } + + /* (non-Javadoc) + * @see javax.accessibility.AccessibleSelection#getAccessibleSelection(int) + */ + public Accessible getAccessibleSelection(int i) + { + int[] items = getSelectedIndexes(); + if (i >= items.length) + return null; + return new AccessibleAWTListChild(List.this, items[i]); + } + + /* (non-Javadoc) + * @see javax.accessibility.AccessibleSelection#isAccessibleChildSelected(int) + */ + public boolean isAccessibleChildSelected(int i) + { + return isIndexSelected(i); + } + + /* (non-Javadoc) + * @see javax.accessibility.AccessibleSelection#addAccessibleSelection(int) + */ + public void addAccessibleSelection(int i) + { + select(i); + } + + /* (non-Javadoc) + * @see javax.accessibility.AccessibleSelection#removeAccessibleSelection(int) + */ + public void removeAccessibleSelection(int i) + { + deselect(i); + } + + /* (non-Javadoc) + * @see javax.accessibility.AccessibleSelection#clearAccessibleSelection() + */ + public void clearAccessibleSelection() + { + for (int i = 0; i < getItemCount(); i++) + deselect(i); + } + + /* (non-Javadoc) + * @see javax.accessibility.AccessibleSelection#selectAllAccessibleSelection() + */ + public void selectAllAccessibleSelection() + { + if (isMultipleMode()) + for (int i = 0; i < getItemCount(); i++) + select(i); + } + + /* (non-Javadoc) + * @see java.awt.event.ItemListener#itemStateChanged(java.awt.event.ItemEvent) + */ + public void itemStateChanged(ItemEvent event) + { + } + + /* (non-Javadoc) + * @see java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent) + */ + public void actionPerformed(ActionEvent event) + { + } + + } + + /** + * Gets the AccessibleContext associated with this <code>List</code>. + * The context is created, if necessary. + * + * @return the associated context + */ + public AccessibleContext getAccessibleContext() + { + /* Create the context if this is the first request */ + if (accessibleContext == null) + accessibleContext = new AccessibleAWTList(); + return accessibleContext; + } } // class List |