core/plugins/org.eclipse.dltk.ui/src/org/eclipse/dltk/internal/ui/wizards/buildpath/BuildPathWizard.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 java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import org.eclipse.core.resources.IFolder;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.dltk.core.IModelElement;
import org.eclipse.dltk.core.IProjectFragment;
import org.eclipse.dltk.core.IScriptProject;
import org.eclipse.dltk.ui.DLTKUIPlugin;
import org.eclipse.dltk.ui.wizards.BuildpathsBlock;
import org.eclipse.dltk.ui.wizards.NewElementWizard;
import org.eclipse.jface.resource.ImageDescriptor;

public abstract class BuildPathWizard extends NewElementWizard {

	private boolean fDoFlushChange;
	private final BPListElement fEntryToEdit;
	private IProjectFragment fProjectFragment;
	private final ArrayList fExistingEntries;

	public BuildPathWizard(BPListElement[] existingEntries, BPListElement newEntry, String titel, ImageDescriptor image) {
		if (image != null)
			setDefaultPageImageDescriptor(image);

		setDialogSettings(DLTKUIPlugin.getDefault().getDialogSettings());
		setWindowTitle(titel);

		fEntryToEdit= newEntry;
		fExistingEntries= new ArrayList(Arrays.asList(existingEntries));
		fDoFlushChange= true;
	}

	@Override
	protected void finishPage(IProgressMonitor monitor) throws InterruptedException, CoreException {
		if (fDoFlushChange) {
			IScriptProject scriptProject= getEntryToEdit().getScriptProject();

			BuildpathsBlock.flush(getExistingEntries(), scriptProject, monitor);

			IProject project= scriptProject.getProject();
			IPath projPath= project.getFullPath();
			IPath path= getEntryToEdit().getPath();

			if (!projPath.equals(path) && projPath.isPrefixOf(path)) {
				path= path.removeFirstSegments(projPath.segmentCount());
			}

			IFolder folder= project.getFolder(path);
			fProjectFragment= scriptProject.getProjectFragment(folder);
		}
	}

	@Override
	public IModelElement getCreatedElement() {
		return fProjectFragment;
	}

	public void setDoFlushChange(boolean b) {
		fDoFlushChange= b;
	}

	public ArrayList getExistingEntries() {
		return fExistingEntries;
	}


	protected BPListElement getEntryToEdit() {
		return fEntryToEdit;
	}

	public List/*<BPListElement>*/ getInsertedElements() {
		return new ArrayList();
	}

	public List/*<BPListElement>*/ getRemovedElements() {
		return new ArrayList();
	}

	public List/*<BPListElement>*/ getModifiedElements() {
		ArrayList result= new ArrayList(1);
		result.add(fEntryToEdit);
		return result;
	}

	public abstract void cancel();

}