/**
* Moves the focus to the specified component.
*
* @param gainer The component gaining focus
*/
protected void moveFocus(OFocusableComponent gainer) {
if (Debug.ON) Logger.dev("@@@ OFocusManager.moveFocus ENTERED");
focusedComponent.setFocus(OFocusEvent.FOCUS_LOST);
gainer.setFocus(OFocusEvent.FOCUS_GAINED);
focusedComponent = gainer;
screen.adjustBodyOffset(gainer);
if (Debug.ON) Logger.dev("OFocusManager.moveFocus EXITTING");
} // moveFocus
/**
* Creates a new <code>OFocusManager</code> instance.
*
* <p><b>This constructor should only be called AFTER all components have been added to the
* screen. The object created by this constructor will not manage focus for any components added
* to the screen AFTER this constructor is called</b>
*
* @param container The container for which this object is to manage focus.
*/
public OFocusManager(OCompositeScreen screen) {
if (Debug.ON) Logger.dev("OFocusManager.ctor.1 ENTERED");
this.screen = screen;
bodyBegin = screen.getBodyRow();
bodyEnd = bodyBegin + screen.getBodyHeight();
// populate a vector of components which can have focus, which may be a
// subset of the components in the screen's container
OComponent[] components = ((OContainer) screen).getComponents();
for (int idx = 0; idx < components.length; idx++) {
OComponent component = components[idx];
if (!(component instanceof OContainer)) {
if (component instanceof OFocusableComponent) {
focusableComponents.addElement(component);
}
} else // component is itself a container, so we need to add its focusable
{ // components to the vector of all focusable components=
OComponent[] subComponents = ((OContainer) component).getComponents();
for (int idx2 = 0; idx2 < subComponents.length; idx2++) {
OComponent subComponent = subComponents[idx2];
if (subComponent instanceof OFocusableComponent) {
focusableComponents.addElement(subComponent);
}
}
}
}
// set the focused component to the first component
if (focusableComponents.size() > 0) {
focusedComponent = (OFocusableComponent) focusableComponents.elementAt(focusedComponentIndex);
focusedComponent.setFocus(OFocusEvent.FOCUS_GAINED);
}
if (Debug.ON) Logger.dev("OFocusManager.ctor.1 EXITTING");
} // constructor