bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/RemoveCapabilityStep.java

/*******************************************************************************
 * Copyright (c) 2000, 2003 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.ui.internal.ide.dialogs;

import org.eclipse.core.resources.IProject;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.wizard.IWizard;
import org.eclipse.ui.ICapabilityUninstallWizard;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.internal.ide.IDEWorkbenchMessages;
import org.eclipse.ui.internal.ide.IDEWorkbenchPlugin;
import org.eclipse.ui.internal.ide.registry.Capability;
import org.eclipse.ui.internal.ide.registry.CapabilityRegistry;

/**
 * Represents the removal of a capability step in a multi-step
 * wizard.
 */
public class RemoveCapabilityStep extends WizardStep {
	private Capability capability;
	private String[] natureIds;
	private IProject project;
	private ICapabilityUninstallWizard wizard;
	
	/**
	 * Creates the remove capability step
	 * 
	 * @param number step order number
	 * @param capability the capability to be removed
	 * @param natureIds the list of nature ids to remove on the project
	 * @param project the project to remove the capability from
	 */
	public RemoveCapabilityStep(int number, Capability capability, String[] natureIds, IProject project) {
		super(number);
		this.capability = capability;
		this.natureIds = natureIds;
		this.project = project;
	}

	/* (non-Javadoc)
	 * Method declared on WizardStep.
	 */
	public String getLabel() {
		return IDEWorkbenchMessages.format("RemoveCapabilityStep.label", new Object[] {capability.getName()}); //$NON-NLS-1$
	}

	/* (non-Javadoc)
	 * Method declared on WizardStep.
	 */
	public String getDetails() {
		String details = capability.getUninstallDetails();
		if (details == null) {
			if (natureIds.length == 1) {
				details = IDEWorkbenchMessages.format("RemoveCapabilityStep.defaultDescription0", new Object[] {capability.getName()}); //$NON-NLS-1$
			} else if (natureIds.length == 2) {
				CapabilityRegistry reg = IDEWorkbenchPlugin.getDefault().getCapabilityRegistry();
				Capability otherCapability = reg.getCapabilityForNature(natureIds[1]);
				if (otherCapability == capability)
					otherCapability = reg.getCapabilityForNature(natureIds[0]);
				details = IDEWorkbenchMessages.format("RemoveCapabilityStep.defaultDescription1", new Object[] {capability.getName(), otherCapability.getName()}); //$NON-NLS-1$
			} else {
				StringBuffer msg = new StringBuffer();
				CapabilityRegistry reg = IDEWorkbenchPlugin.getDefault().getCapabilityRegistry();
				for (int i = 0; i < natureIds.length; i++) {
					Capability cap = reg.getCapabilityForNature(natureIds[i]);
					if (cap != capability) {
						msg.append("\n    "); //$NON-NLS-1$
						msg.append(cap.getName());
					}
				}
				details = IDEWorkbenchMessages.format("RemoveCapabilityStep.defaultDescription2", new Object[] {capability.getName(), msg.toString()}); //$NON-NLS-1$
			}
		}
		
		return details;
	}

	/* (non-Javadoc)
	 * Method declared on WizardStep.
	 */
	public IWizard getWizard() {
		if (wizard == null) {
			wizard = capability.getUninstallWizard();
			if (wizard == null)
				wizard = new RemoveCapabilityWizard();
			if (wizard != null) {
				wizard.init(PlatformUI.getWorkbench(), StructuredSelection.EMPTY, project, natureIds);
				wizard.addPages();
			}
		}
		
		return wizard;
	}

}