public void unregisterKeyStroke(KeyStroke ks, JComponent c) {
// component may have already been removed from the hierarchy, we
// need to look up the container using the componentKeyStrokeMap.
ComponentKeyStrokePair ckp = new ComponentKeyStrokePair(c, ks);
Container topContainer = componentKeyStrokeMap.get(ckp);
if (topContainer == null) { // never heard of this pairing, so bail
return;
}
Hashtable keyMap = containerMap.get(topContainer);
if (keyMap == null) { // this should never happen, but I'm being safe
Thread.dumpStack();
return;
}
Object tmp = keyMap.get(ks);
if (tmp == null) { // this should never happen, but I'm being safe
Thread.dumpStack();
return;
}
if (tmp instanceof JComponent && tmp == c) {
keyMap.remove(ks); // remove the KeyStroke from the Map
// System.out.println("removed a stroke" + ks);
} else if (tmp
instanceof Vector) { // this means there is more than one component reg for this key
Vector v = (Vector) tmp;
v.removeElement(c);
if (v.isEmpty()) {
keyMap.remove(ks); // remove the KeyStroke from the Map
// System.out.println("removed a ks vector");
}
}
if (keyMap.isEmpty()) { // if no more bindings in this table
containerMap.remove(topContainer); // remove table to enable GC
// System.out.println("removed a container");
}
componentKeyStrokeMap.remove(ckp);
// Check for EmbeddedFrame case, they know how to process accelerators even
// when focus is not in Java
if (topContainer instanceof EmbeddedFrame) {
((EmbeddedFrame) topContainer).unregisterAccelerator(ks);
}
}
/*
* 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 addNotify() /* */ {
/* 65 */ if (getPeer() == null) {
/* 66 */ XToolkit localXToolkit = (XToolkit) Toolkit.getDefaultToolkit();
/* 67 */ setPeer(localXToolkit.createEmbeddedFrame(this));
/* */ }
/* 69 */ super.addNotify();
/* */ }
/**
* register keystrokes here which are for the WHEN_IN_FOCUSED_WINDOW case. Other types of
* keystrokes will be handled by walking the hierarchy That simplifies some potentially hairy
* stuff.
*/
public void registerKeyStroke(KeyStroke k, JComponent c) {
Container topContainer = getTopAncestor(c);
if (topContainer == null) {
return;
}
Hashtable keyMap = containerMap.get(topContainer);
if (keyMap == null) { // lazy evaluate one
keyMap = registerNewTopContainer(topContainer);
}
Object tmp = keyMap.get(k);
if (tmp == null) {
keyMap.put(k, c);
} else if (tmp instanceof Vector) { // if there's a Vector there then add to it.
Vector v = (Vector) tmp;
if (!v.contains(c)) { // only add if this keystroke isn't registered for this component
v.addElement(c);
}
} else if (tmp instanceof JComponent) {
// if a JComponent is there then remove it and replace it with a vector
// Then add the old compoennt and the new compoent to the vector
// then insert the vector in the table
if (tmp != c) { // this means this is already registered for this component, no need to dup
Vector<JComponent> v = new Vector<JComponent>();
v.addElement((JComponent) tmp);
v.addElement(c);
keyMap.put(k, v);
}
} else {
System.out.println("Unexpected condition in registerKeyStroke");
Thread.dumpStack();
}
componentKeyStrokeMap.put(new ComponentKeyStrokePair(c, k), topContainer);
// Check for EmbeddedFrame case, they know how to process accelerators even
// when focus is not in Java
if (topContainer instanceof EmbeddedFrame) {
((EmbeddedFrame) topContainer).registerAccelerator(k);
}
}
// override XWindowPeer's method to let the embedded frame to block
// the containing window
public void setModalBlocked(Dialog blocker, boolean blocked) {
super.setModalBlocked(blocker, blocked);
EmbeddedFrame frame = (EmbeddedFrame) target;
frame.notifyModalBlocked(blocker, blocked);
}
@Override
public void modalEnable(Dialog blocker) {
super.modalEnable(blocker);
((EmbeddedFrame) target).notifyModalBlocked(blocker, false);
}
@Override
public void modalDisable(Dialog blocker, long blockerHWnd) {
super.modalDisable(blocker, blockerHWnd);
((EmbeddedFrame) target).notifyModalBlocked(blocker, true);
}