/*
* 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();
}
}
/*
* Tab has changed. Focus on saved component for the given tab.
* When there is no saved component, focus on the first component.
*/
public void stateChanged(ChangeEvent e) {
Component key = tabbedPane.getComponentAt(tabbedPane.getSelectedIndex());
if (key == null) return;
Component value = tabFocus.get(key);
// First time selecting this tab or focus policy is RESET_FOCUS
if (value == null) {
key.transferFocus();
tabFocus.put(key, value);
} else // Use the saved component for focusing
{
value.requestFocusInWindow();
}
}
/**
* Sets the help text for the specified component.
*
* @param cont input container
*/
static void focus(final Component cont) {
final GUI gui = gui(cont);
if (gui == null) return;
if (gui.gopts.get(GUIOptions.MOUSEFOCUS) && cont.isEnabled()) cont.requestFocusInWindow();
}