/**
* Internal call back for frame action events, triggered by the used OnewayExecutor thread we
* started in frameAction(). We use it to update our interception on the internal saved frame.
*
* @param aEvent describes the action
*/
private void impl_frameAction(/*IN*/ com.sun.star.frame.FrameActionEvent aEvent) {
synchronized (this) {
if (m_bDead) return;
}
// deregistration will be done every time...
// But may it's not necessary to establish a new registration!
// Don't look for ignoring actions - it was done already inside original frameAction() call!
boolean bRegister = false;
// analyze the event and decide which reaction is useful
switch (aEvent.Action.getValue()) {
case com.sun.star.frame.FrameAction.COMPONENT_ATTACHED_value:
bRegister = true;
break;
case com.sun.star.frame.FrameAction.COMPONENT_REATTACHED_value:
bRegister = true;
break;
case com.sun.star.frame.FrameAction.COMPONENT_DETACHING_value:
bRegister = false;
break;
}
com.sun.star.frame.XFrame xFrame = null;
boolean bIsRegistered = false;
synchronized (this) {
bIsRegistered = m_bIsRegistered;
m_bIsRegistered = false;
xFrame = m_xFrame;
}
com.sun.star.frame.XDispatchProviderInterception xRegistration =
UnoRuntime.queryInterface(com.sun.star.frame.XDispatchProviderInterception.class, xFrame);
if (xRegistration == null) return;
if (bIsRegistered) xRegistration.releaseDispatchProviderInterceptor(this);
if (!bRegister) return;
xRegistration.registerDispatchProviderInterceptor(this);
synchronized (this) {
m_bIsRegistered = true;
}
}
/**
* call back for frame action events We use it to update our interception. Because if a new
* component was loaded into the frame or another interceptor was registered, we should refresh
* our connection to the frame. Otherwhise we can't guarantee full functionality here.
*
* <p>Note: Don't react synchronous in an asynchronous listener callback. So use a thread here to
* update anything.
*
* @seealso impl_frameAction()
* @param aEvent describes the action
*/
public /*ONEWAY*/ void frameAction(/*IN*/ com.sun.star.frame.FrameActionEvent aEvent) {
synchronized (this) {
if (m_bDead) return;
}
boolean bHandle = false;
switch (aEvent.Action.getValue()) {
case com.sun.star.frame.FrameAction.COMPONENT_ATTACHED_value:
bHandle = true;
break;
case com.sun.star.frame.FrameAction.COMPONENT_DETACHING_value:
bHandle = true;
break;
case com.sun.star.frame.FrameAction.COMPONENT_REATTACHED_value:
bHandle = true;
break;
// Don't react for CONTEXT_CHANGED here. Ok it indicates, that may another interceptor
// was registered at the frame ... but if we register ourself there - we get a context
// changed too :-( Best way to produce a never ending recursion ...
// May be that somewhere find a safe mechanism to detect own produced frame action events
// and ignore it.
case com.sun.star.frame.FrameAction.CONTEXT_CHANGED_value:
System.out.println(
"Time to update interception ... but may it will start a recursion. So I let it :-(");
bHandle = false;
break;
}
// ignore some events
if (!bHandle) return;
// pack the event and start thread - which call us back later
ArrayList<Object> lOutParams = new ArrayList<Object>();
lOutParams.add(aEvent);
OnewayExecutor aExecutor =
new OnewayExecutor(this, OnewayExecutor.REQUEST_FRAMEACTION, lOutParams);
aExecutor.start();
}