bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/dialogs/RemoveCapabilityStep.java

package org.eclipse.ui.internal.dialogs;

/**********************************************************************
Copyright (c) 2002 IBM Corp. and others.
All rights reserved.   This program and the accompanying materials
are made available under the terms of the Common Public License v0.5
which accompanies this distribution, and is available at
http://www.eclipse.org/legal/cpl-v05.html
 
Contributors:
**********************************************************************/
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.WorkbenchMessages;
import org.eclipse.ui.internal.WorkbenchPlugin;
import org.eclipse.ui.internal.registry.Capability;
import org.eclipse.ui.internal.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 WorkbenchMessages.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 = WorkbenchMessages.format("RemoveCapabilityStep.defaultDescription0", new Object[] {capability.getName()}); //$NON-NLS-1$
			} else if (natureIds.length == 2) {
				CapabilityRegistry reg = WorkbenchPlugin.getDefault().getCapabilityRegistry();
				Capability otherCapability = reg.getCapabilityForNature(natureIds[1]);
				if (otherCapability == capability)
					otherCapability = reg.getCapabilityForNature(natureIds[0]);
				details = WorkbenchMessages.format("RemoveCapabilityStep.defaultDescription1", new Object[] {capability.getName(), otherCapability.getName()}); //$NON-NLS-1$
			} else {
				StringBuffer msg = new StringBuffer();
				CapabilityRegistry reg = WorkbenchPlugin.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 = WorkbenchMessages.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;
	}

}