/*******************************************************************************
* Copyright (c) 2004 Vlad Dumitrescu and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Vlad Dumitrescu
*******************************************************************************/
package org.erlide.ui.editors.erl.outline;
import org.eclipse.swt.widgets.Display;
import org.erlide.engine.model.ElementChangedEvent;
import org.erlide.engine.model.IElementChangedListener;
import org.erlide.engine.model.root.IErlElementDelta;
class ElementChangedListener implements IElementChangedListener {
/**
*
*/
private final ErlangOutlinePage page;
/**
* @param page
*/
ElementChangedListener(final ErlangOutlinePage page) {
this.page = page;
}
@Override
public void elementChanged(final ElementChangedEvent e) {
if (page.getControl() == null) {
return;
}
final Display d = page.getControl().getDisplay();
if (d != null) {
d.asyncExec(new Runnable() {
@Override
public void run() {
// IErlModule cu = (IErlModule) fInput;
// IErlElement base = cu;
// base = getMainType(cu);
// if (base == null)
// {
// if (fOutlineViewer != null)
// fOutlineViewer.refresh(true);
// return;
// }
// IErlElementDelta delta = findElement(base,
// e.getDelta());
// if (delta != null && fOutlineViewer != null)
// {
// fOutlineViewer.reconcile(delta);
// }
}
});
}
}
protected boolean isPossibleStructuralChange(final IErlElementDelta cuDelta) {
if (cuDelta.getKind() != IErlElementDelta.CHANGED) {
return true; // add or remove
}
final int flags = cuDelta.getFlags();
if ((flags & IErlElementDelta.F_CHILDREN) != 0) {
return true;
}
return (flags & (IErlElementDelta.F_CONTENT | IErlElementDelta.F_FINE_GRAINED)) == IErlElementDelta.F_CONTENT;
}
}