diff options
Diffstat (limited to 'libjava/classpath/javax/swing/JMenu.java')
| -rw-r--r-- | libjava/classpath/javax/swing/JMenu.java | 273 |
1 files changed, 245 insertions, 28 deletions
diff --git a/libjava/classpath/javax/swing/JMenu.java b/libjava/classpath/javax/swing/JMenu.java index 37ed148..02cb20e 100644 --- a/libjava/classpath/javax/swing/JMenu.java +++ b/libjava/classpath/javax/swing/JMenu.java @@ -38,8 +38,6 @@ exception statement from your version. */ package javax.swing; -import gnu.classpath.NotImplementedException; - import java.awt.Component; import java.awt.Point; import java.awt.event.KeyEvent; @@ -48,6 +46,7 @@ import java.awt.event.WindowEvent; import java.beans.PropertyChangeEvent; import java.beans.PropertyChangeListener; import java.io.Serializable; +import java.util.ArrayList; import java.util.EventListener; import javax.accessibility.Accessible; @@ -811,7 +810,9 @@ public class JMenu extends JMenuItem implements Accessible, MenuElement return accessibleContext; } - // FIXME: This inner class is a complete stub and needs to be implemented. + /** + * Implements support for assisitive technologies for <code>JMenu</code>. + */ protected class AccessibleJMenu extends AccessibleJMenuItem implements AccessibleSelection { @@ -822,69 +823,245 @@ public class JMenu extends JMenuItem implements Accessible, MenuElement // Nothing to do here. } + /** + * Returns the number of accessible children of this object. + * + * @return the number of accessible children of this object + */ public int getAccessibleChildrenCount() - throws NotImplementedException { - return 0; + Component[] children = getMenuComponents(); + int count = 0; + for (int i = 0; i < children.length; i++) + { + if (children[i] instanceof Accessible) + count++; + } + return count; } - public Accessible getAccessibleChild(int value0) - throws NotImplementedException + /** + * Returns the accessible child with the specified <code>index</code>. + * + * @param index the index of the child to fetch + * + * @return the accessible child with the specified <code>index</code> + */ + public Accessible getAccessibleChild(int index) { - return null; + Component[] children = getMenuComponents(); + int count = 0; + Accessible found = null; + for (int i = 0; i < children.length; i++) + { + if (children[i] instanceof Accessible) + { + if (count == index) + { + found = (Accessible) children[i]; + break; + } + count++; + } + } + return found; } + /** + * Returns the accessible selection of this object. AccessibleJMenus handle + * their selection themselves, so we always return <code>this</code> here. + * + * @return the accessible selection of this object + */ public AccessibleSelection getAccessibleSelection() - throws NotImplementedException { - return null; + return this; } - public Accessible getAccessibleSelection(int value0) - throws NotImplementedException + /** + * Returns the selected accessible child with the specified + * <code>index</code>. + * + * @param index the index of the accessible selected child to return + * + * @return the selected accessible child with the specified + * <code>index</code> + */ + public Accessible getAccessibleSelection(int index) { - return null; + Accessible selected = null; + // Only one item can be selected, which must therefore have index == 0. + if (index == 0) + { + MenuSelectionManager msm = MenuSelectionManager.defaultManager(); + MenuElement[] me = msm.getSelectedPath(); + if (me != null) + { + for (int i = 0; i < me.length; i++) + { + if (me[i] == JMenu.this) + { + // This JMenu is selected, find and return the next + // JMenuItem in the path. + do + { + if (me[i] instanceof Accessible) + { + selected = (Accessible) me[i]; + break; + } + i++; + } while (i < me.length); + } + if (selected != null) + break; + } + } + } + return selected; } - public boolean isAccessibleChildSelected(int value0) - throws NotImplementedException + /** + * Returns <code>true</code> if the accessible child with the specified + * index is selected, <code>false</code> otherwise. + * + * @param index the index of the accessible child to check + * + * @return <code>true</code> if the accessible child with the specified + * index is selected, <code>false</code> otherwise + */ + public boolean isAccessibleChildSelected(int index) { - return false; + boolean selected = false; + MenuSelectionManager msm = MenuSelectionManager.defaultManager(); + MenuElement[] me = msm.getSelectedPath(); + if (me != null) + { + Accessible toBeFound = getAccessibleChild(index); + for (int i = 0; i < me.length; i++) + { + if (me[i] == toBeFound) + { + selected = true; + break; + } + } + } + return selected; } + /** + * Returns the accessible role of this object, which is + * {@link AccessibleRole#MENU} for the AccessibleJMenu. + * + * @return the accessible role of this object + */ public AccessibleRole getAccessibleRole() { return AccessibleRole.MENU; } + /** + * Returns the number of selected accessible children. This will be + * <code>0</code> if no item is selected, or <code>1</code> if an item + * is selected. AccessibleJMenu can have maximum 1 selected item. + * + * @return the number of selected accessible children + */ public int getAccessibleSelectionCount() - throws NotImplementedException { - return 0; + int count = 0; + MenuSelectionManager msm = MenuSelectionManager.defaultManager(); + MenuElement[] me = msm.getSelectedPath(); + if (me != null) + { + for (int i = 0; i < me.length; i++) + { + if (me[i] == JMenu.this) + { + if (i + 1 < me.length) + { + count = 1; + break; + } + } + } + } + return count; } - public void addAccessibleSelection(int value0) - throws NotImplementedException + /** + * Selects the accessible child with the specified index. + * + * @param index the index of the accessible child to select + */ + public void addAccessibleSelection(int index) { - // TODO: Implement this properly. + Accessible child = getAccessibleChild(index); + if (child != null && child instanceof JMenuItem) + { + JMenuItem mi = (JMenuItem) child; + MenuSelectionManager msm = MenuSelectionManager.defaultManager(); + msm.setSelectedPath(createPath(JMenu.this)); + } } - public void removeAccessibleSelection(int value0) - throws NotImplementedException + /** + * Removes the item with the specified index from the selection. + * + * @param index the index of the selected item to remove from the selection + */ + public void removeAccessibleSelection(int index) { - // TODO: Implement this properly. + Accessible child = getAccessibleChild(index); + if (child != null) + { + MenuSelectionManager msm = MenuSelectionManager.defaultManager(); + MenuElement[] oldSelection = msm.getSelectedPath(); + for (int i = 0; i < oldSelection.length; i++) + { + if (oldSelection[i] == child) + { + // Found the specified child in the selection. Remove it + // from the selection. + MenuElement[] newSel = new MenuElement[i - 1]; + System.arraycopy(oldSelection, 0, newSel, 0, i - 1); + msm.setSelectedPath(newSel); + break; + } + } + } } + /** + * Removes all possibly selected accessible children of this object from + * the selection. + */ public void clearAccessibleSelection() - throws NotImplementedException { - // TODO: Implement this properly. + MenuSelectionManager msm = MenuSelectionManager.defaultManager(); + MenuElement[] oldSelection = msm.getSelectedPath(); + for (int i = 0; i < oldSelection.length; i++) + { + if (oldSelection[i] == JMenu.this) + { + // Found this menu in the selection. Remove all children from + // the selection. + MenuElement[] newSel = new MenuElement[i]; + System.arraycopy(oldSelection, 0, newSel, 0, i); + msm.setSelectedPath(newSel); + break; + } + } } + /** + * AccessibleJMenu don't support multiple selection, so this method + * does nothing. + */ public void selectAllAccessibleSelection() - throws NotImplementedException { - // TODO: Implement this properly. + // Nothing to do here. } } @@ -939,4 +1116,44 @@ public class JMenu extends JMenuItem implements Accessible, MenuElement } } + /** + * Creates an array to be feeded as argument to + * {@link MenuSelectionManager#setSelectedPath(MenuElement[])} for the + * specified element. This has the effect of selecting the specified element + * and all its parents. + * + * @param leaf the leaf element for which to create the selected path + * + * @return the selected path array + */ + MenuElement[] createPath(JMenu leaf) + { + ArrayList path = new ArrayList(); + MenuElement[] array = null; + Component current = leaf.getPopupMenu(); + while (true) + { + if (current instanceof JPopupMenu) + { + JPopupMenu popupMenu = (JPopupMenu) current; + path.add(0, popupMenu); + current = popupMenu.getInvoker(); + } + else if (current instanceof JMenu) + { + JMenu menu = (JMenu) current; + path.add(0, menu); + current = menu.getParent(); + } + else if (current instanceof JMenuBar) + { + JMenuBar menuBar = (JMenuBar) current; + path.add(0, menuBar); + array = new MenuElement[path.size()]; + array = (MenuElement[]) path.toArray(array); + break; + } + } + return array; + } } |