/*
* Fix for BugTraq ID 4041703.
* Set the focus to a reasonable default for an Applet.
*/
private void setDefaultFocus() {
Component toFocus = null;
Container parent = getParent();
if (parent != null) {
if (parent instanceof Window) {
toFocus = getMostRecentFocusOwnerForWindow((Window) parent);
if (toFocus == parent || toFocus == null) {
toFocus = parent.getFocusTraversalPolicy().getInitialComponent((Window) parent);
}
} else if (parent.isFocusCycleRoot()) {
toFocus = parent.getFocusTraversalPolicy().getDefaultComponent(parent);
}
}
if (toFocus != null) {
if (parent instanceof EmbeddedFrame) {
((EmbeddedFrame) parent).synthesizeWindowActivation(true);
}
// EmbeddedFrame might have focus before the applet was added.
// Thus after its activation the most recent focus owner will be
// restored. We need the applet's initial focusabled component to
// be focused here.
toFocus.requestFocusInWindow();
}
}
public void actionPerformed(ActionEvent e) {
int selIndexBefore = getSelectedIndex();
myDefaultAction.actionPerformed(e);
int selIndexCurrent = getSelectedIndex();
if (selIndexBefore != selIndexCurrent) {
return;
}
if (myFocusNext && selIndexCurrent == 0) {
return;
}
KeyboardFocusManager kfm = KeyboardFocusManager.getCurrentKeyboardFocusManager();
Container container = kfm.getCurrentFocusCycleRoot();
FocusTraversalPolicy policy = container.getFocusTraversalPolicy();
if (policy == null) {
policy = kfm.getDefaultFocusTraversalPolicy();
}
Component next =
myFocusNext
? policy.getComponentAfter(container, PaletteItemsComponent.this)
: policy.getComponentBefore(container, PaletteItemsComponent.this);
if (next instanceof PaletteGroupComponent) {
clearSelection();
next.requestFocus();
((PaletteGroupComponent) next).scrollRectToVisible(next.getBounds());
}
}
public void actionPerformed(ActionEvent e) {
KeyboardFocusManager kfm = KeyboardFocusManager.getCurrentKeyboardFocusManager();
Container container = kfm.getCurrentFocusCycleRoot();
FocusTraversalPolicy policy = container.getFocusTraversalPolicy();
if (null == policy) policy = kfm.getDefaultFocusTraversalPolicy();
Component next =
moveDown
? policy.getComponentAfter(container, PaletteGroupHeader.this)
: policy.getComponentBefore(container, PaletteGroupHeader.this);
if (null != next && next instanceof PaletteComponentList) {
final PaletteComponentList list = (PaletteComponentList) next;
if (list.getModel().getSize() != 0) {
list.takeFocusFrom(PaletteGroupHeader.this, list == myComponentList ? 0 : -1);
return;
} else {
next =
moveDown
? policy.getComponentAfter(container, next)
: policy.getComponentBefore(container, next);
}
}
if (null != next && next instanceof PaletteGroupHeader) {
next.requestFocus();
}
}
// By default the GridBagLayout stuffs up tab ordering for the
// borrow book and return book panes, so I need this to ensure it's all
// the right way round.
private void initFocusTraversalPolicy() {
Container nearestRoot = (isFocusCycleRoot()) ? this : getFocusCycleRootAncestor();
final FocusTraversalPolicy defaultPolicy = nearestRoot.getFocusTraversalPolicy();
MapFocusTraversalPolicy mine = new MapFocusTraversalPolicy(defaultPolicy, tabbedPane);
mine.putAfter(retISBN, retCustID);
mine.putAfter(retCustID, returnButton);
mine.putAfter(returnButton, tabbedPane);
mine.putAfter(borISBN, borCustID);
mine.putAfter(borCustID, borDay);
mine.putAfter(borDay, borMonth);
mine.putAfter(borMonth, borYear);
mine.putAfter(borYear, borrowButton);
mine.putAfter(borrowButton, tabbedPane);
mine.putBefore(retCustID, retISBN);
mine.putBefore(returnButton, retCustID);
mine.putBefore(borCustID, borISBN);
mine.putBefore(borDay, borCustID);
mine.putBefore(borMonth, borDay);
mine.putBefore(borYear, borMonth);
mine.putBefore(borrowButton, borYear);
mine.putTabBefore("Borrow Book", borrowButton);
mine.putTabBefore("Return Book", returnButton);
nearestRoot.setFocusTraversalPolicy(mine);
}
public Component findNextFocus() {
// Find focus owner
Component c = KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner();
Container root = c == null ? null : c.getFocusCycleRootAncestor();
if (root != null) {
FocusTraversalPolicy policy = root.getFocusTraversalPolicy();
Component nextFocus = policy.getComponentAfter(root, c);
if (nextFocus == null) {
nextFocus = policy.getDefaultComponent(root);
}
return nextFocus;
}
return null;
}
/**
* Traverse to the next forward or backward component using the container's FocusTraversalPolicy.
*
* @param comp the assumed current focuse component
* @param forward if true, returns the next focus component, otherwise the previous one.
* @return
*/
public static Component getNextFocus(Component comp, boolean forward) {
Container focusContainer = comp.getFocusCycleRootAncestor();
while (focusContainer != null
&& (!focusContainer.isShowing()
|| !focusContainer.isFocusable()
|| !focusContainer.isEnabled())) {
comp = focusContainer;
focusContainer = comp.getFocusCycleRootAncestor();
}
Component next = null;
if (focusContainer != null) {
final FocusTraversalPolicy policy = focusContainer.getFocusTraversalPolicy();
next =
forward
? policy.getComponentAfter(focusContainer, comp)
: policy.getComponentBefore(focusContainer, comp);
if (next == null) {
next = policy.getDefaultComponent(focusContainer);
}
}
return next;
}
public void actionPerformed(ActionEvent e) {
JDesktopPane dp = (JDesktopPane) e.getSource();
String key = getName();
if (CLOSE == key || MAXIMIZE == key || MINIMIZE == key || RESTORE == key) {
setState(dp, key);
} else if (ESCAPE == key) {
if (sourceFrame == dp.getSelectedFrame() && focusOwner != null) {
focusOwner.requestFocus();
}
moving = false;
resizing = false;
sourceFrame = null;
focusOwner = null;
} else if (MOVE == key || RESIZE == key) {
sourceFrame = dp.getSelectedFrame();
if (sourceFrame == null) {
return;
}
moving = (key == MOVE) ? true : false;
resizing = (key == RESIZE) ? true : false;
focusOwner = KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner();
if (!SwingUtilities.isDescendingFrom(focusOwner, sourceFrame)) {
focusOwner = null;
}
sourceFrame.requestFocus();
} else if (LEFT == key
|| RIGHT == key
|| UP == key
|| DOWN == key
|| SHRINK_RIGHT == key
|| SHRINK_LEFT == key
|| SHRINK_UP == key
|| SHRINK_DOWN == key) {
JInternalFrame c = dp.getSelectedFrame();
if (sourceFrame == null
|| c != sourceFrame
|| KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner()
!= sourceFrame) {
return;
}
Insets minOnScreenInsets = UIManager.getInsets("Desktop.minOnScreenInsets");
Dimension size = c.getSize();
Dimension minSize = c.getMinimumSize();
int dpWidth = dp.getWidth();
int dpHeight = dp.getHeight();
int delta;
Point loc = c.getLocation();
if (LEFT == key) {
if (moving) {
c.setLocation(
loc.x + size.width - MOVE_RESIZE_INCREMENT < minOnScreenInsets.right
? -size.width + minOnScreenInsets.right
: loc.x - MOVE_RESIZE_INCREMENT,
loc.y);
} else if (resizing) {
c.setLocation(loc.x - MOVE_RESIZE_INCREMENT, loc.y);
c.setSize(size.width + MOVE_RESIZE_INCREMENT, size.height);
}
} else if (RIGHT == key) {
if (moving) {
c.setLocation(
loc.x + MOVE_RESIZE_INCREMENT > dpWidth - minOnScreenInsets.left
? dpWidth - minOnScreenInsets.left
: loc.x + MOVE_RESIZE_INCREMENT,
loc.y);
} else if (resizing) {
c.setSize(size.width + MOVE_RESIZE_INCREMENT, size.height);
}
} else if (UP == key) {
if (moving) {
c.setLocation(
loc.x,
loc.y + size.height - MOVE_RESIZE_INCREMENT < minOnScreenInsets.bottom
? -size.height + minOnScreenInsets.bottom
: loc.y - MOVE_RESIZE_INCREMENT);
} else if (resizing) {
c.setLocation(loc.x, loc.y - MOVE_RESIZE_INCREMENT);
c.setSize(size.width, size.height + MOVE_RESIZE_INCREMENT);
}
} else if (DOWN == key) {
if (moving) {
c.setLocation(
loc.x,
loc.y + MOVE_RESIZE_INCREMENT > dpHeight - minOnScreenInsets.top
? dpHeight - minOnScreenInsets.top
: loc.y + MOVE_RESIZE_INCREMENT);
} else if (resizing) {
c.setSize(size.width, size.height + MOVE_RESIZE_INCREMENT);
}
} else if (SHRINK_LEFT == key && resizing) {
// Make sure we don't resize less than minimum size.
if (minSize.width < (size.width - MOVE_RESIZE_INCREMENT)) {
delta = MOVE_RESIZE_INCREMENT;
} else {
delta = size.width - minSize.width;
}
// Ensure that we keep the internal frame on the desktop.
if (loc.x + size.width - delta < minOnScreenInsets.left) {
delta = loc.x + size.width - minOnScreenInsets.left;
}
c.setSize(size.width - delta, size.height);
} else if (SHRINK_RIGHT == key && resizing) {
// Make sure we don't resize less than minimum size.
if (minSize.width < (size.width - MOVE_RESIZE_INCREMENT)) {
delta = MOVE_RESIZE_INCREMENT;
} else {
delta = size.width - minSize.width;
}
// Ensure that we keep the internal frame on the desktop.
if (loc.x + delta > dpWidth - minOnScreenInsets.right) {
delta = (dpWidth - minOnScreenInsets.right) - loc.x;
}
c.setLocation(loc.x + delta, loc.y);
c.setSize(size.width - delta, size.height);
} else if (SHRINK_UP == key && resizing) {
// Make sure we don't resize less than minimum size.
if (minSize.height < (size.height - MOVE_RESIZE_INCREMENT)) {
delta = MOVE_RESIZE_INCREMENT;
} else {
delta = size.height - minSize.height;
}
// Ensure that we keep the internal frame on the desktop.
if (loc.y + size.height - delta < minOnScreenInsets.bottom) {
delta = loc.y + size.height - minOnScreenInsets.bottom;
}
c.setSize(size.width, size.height - delta);
} else if (SHRINK_DOWN == key && resizing) {
// Make sure we don't resize less than minimum size.
if (minSize.height < (size.height - MOVE_RESIZE_INCREMENT)) {
delta = MOVE_RESIZE_INCREMENT;
} else {
delta = size.height - minSize.height;
}
// Ensure that we keep the internal frame on the desktop.
if (loc.y + delta > dpHeight - minOnScreenInsets.top) {
delta = (dpHeight - minOnScreenInsets.top) - loc.y;
}
c.setLocation(loc.x, loc.y + delta);
c.setSize(size.width, size.height - delta);
}
} else if (NEXT_FRAME == key || PREVIOUS_FRAME == key) {
dp.selectFrame((key == NEXT_FRAME) ? true : false);
} else if (NAVIGATE_NEXT == key || NAVIGATE_PREVIOUS == key) {
boolean moveForward = true;
if (NAVIGATE_PREVIOUS == key) {
moveForward = false;
}
Container cycleRoot = dp.getFocusCycleRootAncestor();
if (cycleRoot != null) {
FocusTraversalPolicy policy = cycleRoot.getFocusTraversalPolicy();
if (policy != null && policy instanceof SortingFocusTraversalPolicy) {
SortingFocusTraversalPolicy sPolicy = (SortingFocusTraversalPolicy) policy;
boolean idc = sPolicy.getImplicitDownCycleTraversal();
try {
sPolicy.setImplicitDownCycleTraversal(false);
if (moveForward) {
KeyboardFocusManager.getCurrentKeyboardFocusManager().focusNextComponent(dp);
} else {
KeyboardFocusManager.getCurrentKeyboardFocusManager().focusPreviousComponent(dp);
}
} finally {
sPolicy.setImplicitDownCycleTraversal(idc);
}
}
}
}
}
