core/plugins/org.eclipse.dltk.ui/src/org/eclipse/dltk/internal/ui/wizards/buildpath/EditFilterWizard.java

/*******************************************************************************
 * Copyright (c) 2000, 2017 IBM Corporation and others.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 * 
 * SPDX-License-Identifier: EPL-2.0
 *
 *******************************************************************************/
package org.eclipse.dltk.internal.ui.wizards.buildpath;

import org.eclipse.core.runtime.IPath;
import org.eclipse.dltk.internal.ui.wizards.NewWizardMessages;

public class EditFilterWizard extends BuildPathWizard {

	private SetFilterWizardPage fFilterPage;
	private final IPath[] fOrginalInclusion, fOriginalExclusion;

	public EditFilterWizard(BPListElement[] existingEntries, BPListElement newEntry) {
		super(existingEntries, newEntry, NewWizardMessages.ExclusionInclusionDialog_title, null);

		IPath[] inc= (IPath[])newEntry.getAttribute(BPListElement.INCLUSION);
		fOrginalInclusion= new IPath[inc.length];
		System.arraycopy(inc, 0, fOrginalInclusion, 0, inc.length);

		IPath[] excl= (IPath[])newEntry.getAttribute(BPListElement.EXCLUSION);
		fOriginalExclusion= new IPath[excl.length];
		System.arraycopy(excl, 0, fOriginalExclusion, 0, excl.length);
	}

	@Override
	public void addPages() {
		super.addPages();

		fFilterPage= new SetFilterWizardPage(getEntryToEdit(), getExistingEntries());
		addPage(fFilterPage);
	}

	@Override
	public boolean performFinish() {
		BPListElement entryToEdit= getEntryToEdit();
		entryToEdit.setAttribute(BPListElement.INCLUSION, fFilterPage.getInclusionPattern());
		entryToEdit.setAttribute(BPListElement.EXCLUSION, fFilterPage.getExclusionPattern());

		return super.performFinish();
	}

	@Override
	public void cancel() {
		BPListElement entryToEdit= getEntryToEdit();
		entryToEdit.setAttribute(BPListElement.INCLUSION, fOrginalInclusion);
		entryToEdit.setAttribute(BPListElement.EXCLUSION, fOriginalExclusion);
	}
}