update/org.eclipse.update.ui/src/org/eclipse/update/internal/ui/wizards/TargetPage.java - platform/eclipse.platform - Git at Google

 /*******************************************************************************
  * 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.update.internal.ui.wizards;
 import java.io.*;
 import java.util.*;

 import org.eclipse.core.runtime.*;
 import org.eclipse.jface.dialogs.*;
 import org.eclipse.jface.dialogs.Dialog;
 import org.eclipse.jface.resource.*;
 import org.eclipse.jface.viewers.*;
 import org.eclipse.swt.*;
 import org.eclipse.swt.events.*;
 import org.eclipse.swt.graphics.*;
 import org.eclipse.swt.layout.*;
 import org.eclipse.swt.widgets.*;
 import org.eclipse.ui.help.*;
 import org.eclipse.update.configuration.*;
 import org.eclipse.update.core.*;
 import org.eclipse.update.internal.operations.*;
 import org.eclipse.update.internal.ui.*;
 import org.eclipse.update.internal.ui.parts.*;
 import org.eclipse.update.internal.api.operations.*;

 public class TargetPage extends BannerPage implements IDynamicPage {
 	private TableViewer jobViewer;
 	private TableViewer siteViewer;
 	private IInstallConfiguration config;
 	private ConfigListener configListener;
 	private Label requiredSpaceLabel;
 	private Label availableSpaceLabel;
 	private IInstallFeatureOperation[] jobs;
 	private Button addButton;
 	private Button deleteButton;
 	private HashSet added;
 	private JobTargetSites targetSites;

 	class JobsContentProvider
 		extends DefaultContentProvider
 		implements IStructuredContentProvider {
 		public Object[] getElements(Object parent) {
 			return jobs;
 		}
 	}

 	class TableContentProvider
 		extends DefaultContentProvider
 		implements IStructuredContentProvider {

 		/**
 		 * @see IStructuredContentProvider#getElements(Object)
 		 */
 		public Object[] getElements(Object parent) {
 			return config.getConfiguredSites();
 		}
 	}

 	class TableLabelProvider
 		extends LabelProvider
 		implements ITableLabelProvider {

 		public Image getColumnImage(Object obj, int col) {
 			UpdateLabelProvider provider = UpdateUI.getDefault().getLabelProvider();
 			if (obj instanceof IConfiguredSite)
 				return provider.getLocalSiteImage((IConfiguredSite) obj);
 			if (obj instanceof IInstallFeatureOperation) {
 				IInstallFeatureOperation job = (IInstallFeatureOperation) obj;
 				ImageDescriptor base =
 					job.getFeature().isPatch()
 						? UpdateUIImages.DESC_EFIX_OBJ
 						: UpdateUIImages.DESC_FEATURE_OBJ;
 				int flags = 0;
 				JobTargetSite jobSite = (JobTargetSite) targetSites.get(job);
 				if (jobSite == null || jobSite.targetSite == null)
 					flags = UpdateLabelProvider.F_ERROR;
 				return provider.get(base, flags);
 			}
 			return null;
 		}

 		public String getColumnText(Object obj, int col) {
 			if (obj instanceof IInstallFeatureOperation && col == 0) {
 				IFeature feature = ((IInstallFeatureOperation) obj).getFeature();
 				return feature.getLabel()
 					+ " " //$NON-NLS-1$
 					+ feature.getVersionedIdentifier().getVersion().toString();
 			}
 			if (obj instanceof IConfiguredSite && col == 0) {
 				ISite site = ((IConfiguredSite) obj).getSite();
 				return site.getURL().getFile();

 			}
 			return null;
 		}
 	}

 	class ConfigListener implements IInstallConfigurationChangedListener {
 		public void installSiteAdded(IConfiguredSite csite) {
 			siteViewer.add(csite);
 			if (added == null)
 				added = new HashSet();
 			added.add(csite);
 			siteViewer.setSelection(new StructuredSelection(csite));
 			siteViewer.getControl().setFocus();
 		}

 		public void installSiteRemoved(IConfiguredSite csite) {
 			siteViewer.remove(csite);
 			if (added != null)
 				added.remove(csite);
 			IInstallFeatureOperation job = (IInstallFeatureOperation) siteViewer.getInput();
 			if (job != null) {
 				JobTargetSite jobSite = (JobTargetSite) targetSites.get(job);
 				IConfiguredSite defaultSite = targetSites.computeTargetSite(jobSite);
 				if (defaultSite != null)
 					siteViewer.setSelection(new StructuredSelection(defaultSite));
 			}
 			siteViewer.getControl().setFocus();
 		}
 	}

 	/**
 	 * Constructor for ReviewPage2
 	 */
 	public TargetPage(IInstallConfiguration config) {
 		super("Target"); //$NON-NLS-1$
 		setTitle(UpdateUI.getString("InstallWizard.TargetPage.title")); //$NON-NLS-1$
 		setDescription(UpdateUI.getString("InstallWizard.TargetPage.desc")); //$NON-NLS-1$
 		this.config = config;
 		UpdateUI.getDefault().getLabelProvider().connect(this);
 		configListener = new ConfigListener();
 		targetSites = new JobTargetSites(config);
 	}

 	public void setJobs(IInstallFeatureOperation[] jobs) {
 		this.jobs = jobs;
 		targetSites.setJobs(jobs);
 	}

 	public void dispose() {
 		UpdateUI.getDefault().getLabelProvider().disconnect(this);
 		config.removeInstallConfigurationChangedListener(configListener);
 		super.dispose();
 	}

 	public Control createContents(Composite parent) {
 		Composite client = new Composite(parent, SWT.NULL);
 		GridLayout layout = new GridLayout();
 		layout.numColumns = 3;
 		layout.marginWidth = layout.marginHeight = 0;
 		client.setLayout(layout);

 		Label label = new Label(client, SWT.NULL);
 		label.setText(UpdateUI.getString("InstallWizard.TargetPage.jobsLabel")); //$NON-NLS-1$

 		label = new Label(client, SWT.NULL);
 		label.setText(UpdateUI.getString("InstallWizard.TargetPage.siteLabel")); //$NON-NLS-1$

 		new Label(client, SWT.NULL);

 		createJobViewer(client);
 		createSiteViewer(client);

 		Composite buttonContainer = new Composite(client, SWT.NULL);
 		GridLayout blayout = new GridLayout();
 		blayout.marginWidth = blayout.marginHeight = 0;
 		buttonContainer.setLayout(blayout);
 		buttonContainer.setLayoutData(new GridData(GridData.FILL_VERTICAL));

 		addButton = new Button(buttonContainer, SWT.PUSH);
 		addButton.setText(UpdateUI.getString("InstallWizard.TargetPage.new")); //$NON-NLS-1$
 		addButton.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				addTargetLocation();
 			}
 		});
 		addButton.setEnabled(false);
 		addButton.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_CENTER));
 		SWTUtil.setButtonDimensionHint(addButton);

 		deleteButton = new Button(buttonContainer, SWT.PUSH);
 		deleteButton.setText(UpdateUI.getString("InstallWizard.TargetPage.delete")); //$NON-NLS-1$
 		deleteButton.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				try {
 					removeSelection();
 				}
 				catch (CoreException ex) {
 					UpdateUI.logException(ex);
 				}
 			}
 		});
 		deleteButton.setEnabled(false);
 		deleteButton.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_CENTER));
 		SWTUtil.setButtonDimensionHint(deleteButton);


 		Composite status = new Composite(client, SWT.NULL);
 		GridData gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL);
 		gd.horizontalSpan = 3;
 		status.setLayoutData(gd);
 		layout = new GridLayout();
 		layout.numColumns = 2;
 		status.setLayout(layout);
 		label = new Label(status, SWT.NULL);
 		label.setText(UpdateUI.getString("InstallWizard.TargetPage.requiredSpace")); //$NON-NLS-1$
 		requiredSpaceLabel = new Label(status, SWT.NULL);
 		requiredSpaceLabel.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 		label = new Label(status, SWT.NULL);
 		label.setText(UpdateUI.getString("InstallWizard.TargetPage.availableSpace")); //$NON-NLS-1$
 		availableSpaceLabel = new Label(status, SWT.NULL);
 		availableSpaceLabel.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

 		WorkbenchHelp.setHelp(client, "org.eclipse.update.ui.MultiTargetPage2"); //$NON-NLS-1$

 		Dialog.applyDialogFont(parent);

 		return client;
 	}

 	private void createJobViewer(Composite parent) {
 		jobViewer = new TableViewer(parent, SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER);
 		GridData gd = new GridData(GridData.FILL_BOTH);
 		gd.widthHint = 150;
 		jobViewer.getTable().setLayoutData(gd);
 		jobViewer.setContentProvider(new JobsContentProvider());
 		jobViewer.setLabelProvider(new TableLabelProvider());

 		jobViewer.addSelectionChangedListener(new ISelectionChangedListener() {
 			public void selectionChanged(SelectionChangedEvent event) {
 				handleJobsSelected((IStructuredSelection) event.getSelection());
 			}
 		});
 	}

 	private void handleJobsSelected(IStructuredSelection selection) {
 		IInstallFeatureOperation job =
 			(IInstallFeatureOperation) selection.getFirstElement();
 		if (job != null) {
 			siteViewer.setInput(job);
 			JobTargetSite jobSite = (JobTargetSite) targetSites.get(job);
 			addButton.setEnabled(jobSite.affinitySite == null);
 			if (jobSite.targetSite != null) {
 				siteViewer.setSelection(new StructuredSelection(jobSite.targetSite));
 			}
 		}
 	}


 	private void createSiteViewer(Composite parent) {
 		siteViewer = new TableViewer(parent, SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER);
 		GridData gd = new GridData(GridData.FILL_BOTH);
 		gd.widthHint = 200;
 		siteViewer.getTable().setLayoutData(gd);
 		siteViewer.setContentProvider(new TableContentProvider());
 		siteViewer.setLabelProvider(new TableLabelProvider());
 		siteViewer.addFilter(new ViewerFilter() {
 			public boolean select(Viewer v, Object parent, Object obj) {
 				IInstallFeatureOperation job = (IInstallFeatureOperation) siteViewer.getInput();
 				JobTargetSite jobSite = (JobTargetSite) targetSites.get(job);
 				return targetSites.getSiteVisibility((IConfiguredSite) obj, jobSite);
 			}
 		});
 		siteViewer.addSelectionChangedListener(new ISelectionChangedListener() {
 			public void selectionChanged(SelectionChangedEvent event) {
 				IStructuredSelection ssel = (IStructuredSelection) event.getSelection();
 				selectTargetSite(ssel);
 				updateDeleteButton(ssel);
 			}
 		});

 		if (config != null)
 			config.addInstallConfigurationChangedListener(configListener);
 	}

 	private void updateDeleteButton(IStructuredSelection selection) {
 		boolean enable = added != null && !added.isEmpty();
 		if (enable) {
 			for (Iterator iter = selection.iterator(); iter.hasNext();) {
 				if (!added.contains(iter.next())) {
 					enable = false;
 					break;
 				}
 			}
 		}
 		deleteButton.setEnabled(enable);
 	}

 	public void setVisible(boolean visible) {
 		if (visible) {
 			targetSites.computeDefaultTargetSites();
 			jobViewer.setInput(jobs);
 			if (jobViewer.getSelection().isEmpty() && jobs.length > 0)
 				jobViewer.setSelection(new StructuredSelection(jobs[0]));
 		}

 		super.setVisible(visible);
 	}

 	private void verifyNotEmpty(boolean empty) {
 		String errorMessage = null;
 		if (empty)
 			errorMessage = UpdateUI.getString("InstallWizard.TargetPage.location.empty"); //$NON-NLS-1$
 		setErrorMessage(errorMessage);
 		setPageComplete(!empty);
 	}

 	private void selectTargetSite(IStructuredSelection selection) {
 		IConfiguredSite site = (IConfiguredSite) selection.getFirstElement();
 		IInstallFeatureOperation job = (IInstallFeatureOperation) siteViewer.getInput();
 		if (job != null) {
 			JobTargetSite jobSite = (JobTargetSite) targetSites.get(job);
 			jobSite.targetSite = site;
 			pageChanged();
 		}
 		updateStatus(site);
 	}

 	private void addTargetLocation() {
 		DirectoryDialog dd = new DirectoryDialog(getContainer().getShell());
 		dd.setMessage(UpdateUI.getString("InstallWizard.TargetPage.location.message")); //$NON-NLS-1$
 		String path = dd.open();
 		if (path != null) {
 			addConfiguredSite(getContainer().getShell(), config, new File(path));
 		}
 	}

 	private void removeSelection() throws CoreException {
 		IStructuredSelection selection = (IStructuredSelection) siteViewer.getSelection();
 		for (Iterator iter = selection.iterator(); iter.hasNext();) {
 			config.removeConfiguredSite((IConfiguredSite) iter.next());
 		}
 	}

 	private IConfiguredSite addConfiguredSite(
 		Shell shell,
 		IInstallConfiguration config,
 		File file) {
 		try {
 			IConfiguredSite csite = config.createConfiguredSite(file);
 			IStatus status = csite.verifyUpdatableStatus();
 			if (status.isOK())
 				config.addConfiguredSite(csite);
 			else
 				throw new CoreException(status);

 			return csite;
 		} catch (CoreException e) {
 			String title = UpdateUI.getString("InstallWizard.TargetPage.location.error.title"); //$NON-NLS-1$
 			ErrorDialog.openError(shell, title, null, e.getStatus());
 			UpdateUI.logException(e);
 			return null;
 		}
 	}

 	private void updateStatus(Object element) {
 		if (element == null) {
 			requiredSpaceLabel.setText(""); //$NON-NLS-1$
 			availableSpaceLabel.setText(""); //$NON-NLS-1$
 			return;
 		}
 		IConfiguredSite site = (IConfiguredSite) element;
 		File file = new File(site.getSite().getURL().getFile());
 		long available = LocalSystemInfo.getFreeSpace(file);
 		long required = computeRequiredSizeFor(site);
 		if (required == -1)
 			requiredSpaceLabel.setText(UpdateUI.getString("InstallWizard.TargetPage.unknownSize")); //$NON-NLS-1$
 		else
 			requiredSpaceLabel.setText(
 				UpdateUI.getFormattedMessage("InstallWizard.TargetPage.size", "" + required)); //$NON-NLS-1$ //$NON-NLS-2$

 		if (available == LocalSystemInfo.SIZE_UNKNOWN)
 			availableSpaceLabel.setText(UpdateUI.getString("InstallWizard.TargetPage.unknownSize")); //$NON-NLS-1$
 		else
 			availableSpaceLabel.setText(
 				UpdateUI.getFormattedMessage("InstallWizard.TargetPage.size", "" + available)); //$NON-NLS-1$ //$NON-NLS-2$
 	}

 	private long computeRequiredSizeFor(IConfiguredSite site) {
 		long totalSize = 0;
 		for (int i = 0; i < jobs.length; i++) {
 			JobTargetSite jobSite = (JobTargetSite) targetSites.get(jobs[i]);
 			if (site.equals(jobSite.targetSite)) {
 				long jobSize = site.getSite().getInstallSizeFor(jobs[i].getFeature());
 				if (jobSize == -1)
 					return -1;
 				totalSize += jobSize;
 			}
 		}
 		return totalSize;
 	}

 	private void pageChanged() {
 		boolean empty = false;
 		for (Iterator enum = targetSites.keySet().iterator(); enum.hasNext();) {
 			JobTargetSite jobSite = (JobTargetSite) targetSites.get(enum.next());
 			if (jobSite.targetSite == null) {
 				empty = true;
 				break;
 			}
 			IFeature feature = jobSite.job.getFeature();
 			if (feature.isPatch()) {
 				// Patches must go together with the features
 				// they are patching.
 				JobTargetSite patchedSite = targetSites.findPatchedFeature(feature);
 				if (patchedSite != null
 					&& jobSite.targetSite != null
 					&& patchedSite.targetSite != null
 					&& jobSite.targetSite.equals(patchedSite.targetSite) == false) {
 					UpdateUI.getFormattedMessage(
 						"IntallWizard.TargetPage.patchError", //$NON-NLS-1$
 						new String[] {
 							feature.getLabel(),
 							patchedSite.job.getFeature().getLabel()});
 					setPageComplete(false);
 					return;
 				}
 			}
 		}
 		verifyNotEmpty(empty);
 	}

 	public IConfiguredSite getTargetSite(IInstallFeatureOperation job) {
 		return targetSites.getTargetSite(job);
 	}

 	public JobTargetSite[] getTargetSites() {
 		JobTargetSite[] sites = new JobTargetSite[jobs.length];
 		for (int i = 0; i < jobs.length; i++) {
 			JobTargetSite jobSite = (JobTargetSite) targetSites.get(jobs[i]);
 			sites[i] = jobSite;
 		}
 		return sites;
 	}

 	void removeAddedSites() {
 		if (added != null) {
 			for (Iterator it = added.iterator(); it.hasNext(); )
 				config.removeConfiguredSite((IConfiguredSite) it.next());
 		}

 	}
 }
	/*******************************************************************************
	* 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.update.internal.ui.wizards;
	import java.io.*;
	import java.util.*;

	import org.eclipse.core.runtime.*;
	import org.eclipse.jface.dialogs.*;
	import org.eclipse.jface.dialogs.Dialog;
	import org.eclipse.jface.resource.*;
	import org.eclipse.jface.viewers.*;
	import org.eclipse.swt.*;
	import org.eclipse.swt.events.*;
	import org.eclipse.swt.graphics.*;
	import org.eclipse.swt.layout.*;
	import org.eclipse.swt.widgets.*;
	import org.eclipse.ui.help.*;
	import org.eclipse.update.configuration.*;
	import org.eclipse.update.core.*;
	import org.eclipse.update.internal.operations.*;
	import org.eclipse.update.internal.ui.*;
	import org.eclipse.update.internal.ui.parts.*;
	import org.eclipse.update.internal.api.operations.*;

	public class TargetPage extends BannerPage implements IDynamicPage {
	private TableViewer jobViewer;
	private TableViewer siteViewer;
	private IInstallConfiguration config;
	private ConfigListener configListener;
	private Label requiredSpaceLabel;
	private Label availableSpaceLabel;
	private IInstallFeatureOperation[] jobs;
	private Button addButton;
	private Button deleteButton;
	private HashSet added;
	private JobTargetSites targetSites;

	class JobsContentProvider
	extends DefaultContentProvider
	implements IStructuredContentProvider {
	public Object[] getElements(Object parent) {
	return jobs;
	}
	}

	class TableContentProvider
	extends DefaultContentProvider
	implements IStructuredContentProvider {

	/**
	* @see IStructuredContentProvider#getElements(Object)
	*/
	public Object[] getElements(Object parent) {
	return config.getConfiguredSites();
	}
	}

	class TableLabelProvider
	extends LabelProvider
	implements ITableLabelProvider {

	public Image getColumnImage(Object obj, int col) {
	UpdateLabelProvider provider = UpdateUI.getDefault().getLabelProvider();
	if (obj instanceof IConfiguredSite)
	return provider.getLocalSiteImage((IConfiguredSite) obj);
	if (obj instanceof IInstallFeatureOperation) {
	IInstallFeatureOperation job = (IInstallFeatureOperation) obj;
	ImageDescriptor base =
	job.getFeature().isPatch()
	? UpdateUIImages.DESC_EFIX_OBJ
	: UpdateUIImages.DESC_FEATURE_OBJ;
	int flags = 0;
	JobTargetSite jobSite = (JobTargetSite) targetSites.get(job);
	if (jobSite == null \|\| jobSite.targetSite == null)
	flags = UpdateLabelProvider.F_ERROR;
	return provider.get(base, flags);
	}
	return null;
	}

	public String getColumnText(Object obj, int col) {
	if (obj instanceof IInstallFeatureOperation && col == 0) {
	IFeature feature = ((IInstallFeatureOperation) obj).getFeature();
	return feature.getLabel()
	+ " " //$NON-NLS-1$
	+ feature.getVersionedIdentifier().getVersion().toString();
	}
	if (obj instanceof IConfiguredSite && col == 0) {
	ISite site = ((IConfiguredSite) obj).getSite();
	return site.getURL().getFile();

	}
	return null;
	}
	}

	class ConfigListener implements IInstallConfigurationChangedListener {
	public void installSiteAdded(IConfiguredSite csite) {
	siteViewer.add(csite);
	if (added == null)
	added = new HashSet();
	added.add(csite);
	siteViewer.setSelection(new StructuredSelection(csite));
	siteViewer.getControl().setFocus();
	}

	public void installSiteRemoved(IConfiguredSite csite) {
	siteViewer.remove(csite);
	if (added != null)
	added.remove(csite);
	IInstallFeatureOperation job = (IInstallFeatureOperation) siteViewer.getInput();
	if (job != null) {
	JobTargetSite jobSite = (JobTargetSite) targetSites.get(job);
	IConfiguredSite defaultSite = targetSites.computeTargetSite(jobSite);
	if (defaultSite != null)
	siteViewer.setSelection(new StructuredSelection(defaultSite));
	}
	siteViewer.getControl().setFocus();
	}
	}

	/**
	* Constructor for ReviewPage2
	*/
	public TargetPage(IInstallConfiguration config) {
	super("Target"); //$NON-NLS-1$
	setTitle(UpdateUI.getString("InstallWizard.TargetPage.title")); //$NON-NLS-1$
	setDescription(UpdateUI.getString("InstallWizard.TargetPage.desc")); //$NON-NLS-1$
	this.config = config;
	UpdateUI.getDefault().getLabelProvider().connect(this);
	configListener = new ConfigListener();
	targetSites = new JobTargetSites(config);
	}

	public void setJobs(IInstallFeatureOperation[] jobs) {
	this.jobs = jobs;
	targetSites.setJobs(jobs);
	}

	public void dispose() {
	UpdateUI.getDefault().getLabelProvider().disconnect(this);
	config.removeInstallConfigurationChangedListener(configListener);
	super.dispose();
	}

	public Control createContents(Composite parent) {
	Composite client = new Composite(parent, SWT.NULL);
	GridLayout layout = new GridLayout();
	layout.numColumns = 3;
	layout.marginWidth = layout.marginHeight = 0;
	client.setLayout(layout);

	Label label = new Label(client, SWT.NULL);
	label.setText(UpdateUI.getString("InstallWizard.TargetPage.jobsLabel")); //$NON-NLS-1$

	label = new Label(client, SWT.NULL);
	label.setText(UpdateUI.getString("InstallWizard.TargetPage.siteLabel")); //$NON-NLS-1$

	new Label(client, SWT.NULL);

	createJobViewer(client);
	createSiteViewer(client);

	Composite buttonContainer = new Composite(client, SWT.NULL);
	GridLayout blayout = new GridLayout();
	blayout.marginWidth = blayout.marginHeight = 0;
	buttonContainer.setLayout(blayout);
	buttonContainer.setLayoutData(new GridData(GridData.FILL_VERTICAL));

	addButton = new Button(buttonContainer, SWT.PUSH);
	addButton.setText(UpdateUI.getString("InstallWizard.TargetPage.new")); //$NON-NLS-1$
	addButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	addTargetLocation();
	}
	});
	addButton.setEnabled(false);
	addButton.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_CENTER));
	SWTUtil.setButtonDimensionHint(addButton);

	deleteButton = new Button(buttonContainer, SWT.PUSH);
	deleteButton.setText(UpdateUI.getString("InstallWizard.TargetPage.delete")); //$NON-NLS-1$
	deleteButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	try {
	removeSelection();
	}
	catch (CoreException ex) {
	UpdateUI.logException(ex);
	}
	}
	});
	deleteButton.setEnabled(false);
	deleteButton.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_CENTER));
	SWTUtil.setButtonDimensionHint(deleteButton);


	Composite status = new Composite(client, SWT.NULL);
	GridData gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL);
	gd.horizontalSpan = 3;
	status.setLayoutData(gd);
	layout = new GridLayout();
	layout.numColumns = 2;
	status.setLayout(layout);
	label = new Label(status, SWT.NULL);
	label.setText(UpdateUI.getString("InstallWizard.TargetPage.requiredSpace")); //$NON-NLS-1$
	requiredSpaceLabel = new Label(status, SWT.NULL);
	requiredSpaceLabel.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	label = new Label(status, SWT.NULL);
	label.setText(UpdateUI.getString("InstallWizard.TargetPage.availableSpace")); //$NON-NLS-1$
	availableSpaceLabel = new Label(status, SWT.NULL);
	availableSpaceLabel.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

	WorkbenchHelp.setHelp(client, "org.eclipse.update.ui.MultiTargetPage2"); //$NON-NLS-1$

	Dialog.applyDialogFont(parent);

	return client;
	}

	private void createJobViewer(Composite parent) {
	jobViewer = new TableViewer(parent, SWT.H_SCROLL \| SWT.V_SCROLL \| SWT.BORDER);
	GridData gd = new GridData(GridData.FILL_BOTH);
	gd.widthHint = 150;
	jobViewer.getTable().setLayoutData(gd);
	jobViewer.setContentProvider(new JobsContentProvider());
	jobViewer.setLabelProvider(new TableLabelProvider());

	jobViewer.addSelectionChangedListener(new ISelectionChangedListener() {
	public void selectionChanged(SelectionChangedEvent event) {
	handleJobsSelected((IStructuredSelection) event.getSelection());
	}
	});
	}

	private void handleJobsSelected(IStructuredSelection selection) {
	IInstallFeatureOperation job =
	(IInstallFeatureOperation) selection.getFirstElement();
	if (job != null) {
	siteViewer.setInput(job);
	JobTargetSite jobSite = (JobTargetSite) targetSites.get(job);
	addButton.setEnabled(jobSite.affinitySite == null);
	if (jobSite.targetSite != null) {
	siteViewer.setSelection(new StructuredSelection(jobSite.targetSite));
	}
	}
	}


	private void createSiteViewer(Composite parent) {
	siteViewer = new TableViewer(parent, SWT.H_SCROLL \| SWT.V_SCROLL \| SWT.BORDER);
	GridData gd = new GridData(GridData.FILL_BOTH);
	gd.widthHint = 200;
	siteViewer.getTable().setLayoutData(gd);
	siteViewer.setContentProvider(new TableContentProvider());
	siteViewer.setLabelProvider(new TableLabelProvider());
	siteViewer.addFilter(new ViewerFilter() {
	public boolean select(Viewer v, Object parent, Object obj) {
	IInstallFeatureOperation job = (IInstallFeatureOperation) siteViewer.getInput();
	JobTargetSite jobSite = (JobTargetSite) targetSites.get(job);
	return targetSites.getSiteVisibility((IConfiguredSite) obj, jobSite);
	}
	});
	siteViewer.addSelectionChangedListener(new ISelectionChangedListener() {
	public void selectionChanged(SelectionChangedEvent event) {
	IStructuredSelection ssel = (IStructuredSelection) event.getSelection();
	selectTargetSite(ssel);
	updateDeleteButton(ssel);
	}
	});

	if (config != null)
	config.addInstallConfigurationChangedListener(configListener);
	}

	private void updateDeleteButton(IStructuredSelection selection) {
	boolean enable = added != null && !added.isEmpty();
	if (enable) {
	for (Iterator iter = selection.iterator(); iter.hasNext();) {
	if (!added.contains(iter.next())) {
	enable = false;
	break;
	}
	}
	}
	deleteButton.setEnabled(enable);
	}

	public void setVisible(boolean visible) {
	if (visible) {
	targetSites.computeDefaultTargetSites();
	jobViewer.setInput(jobs);
	if (jobViewer.getSelection().isEmpty() && jobs.length > 0)
	jobViewer.setSelection(new StructuredSelection(jobs[0]));
	}

	super.setVisible(visible);
	}

	private void verifyNotEmpty(boolean empty) {
	String errorMessage = null;
	if (empty)
	errorMessage = UpdateUI.getString("InstallWizard.TargetPage.location.empty"); //$NON-NLS-1$
	setErrorMessage(errorMessage);
	setPageComplete(!empty);
	}

	private void selectTargetSite(IStructuredSelection selection) {
	IConfiguredSite site = (IConfiguredSite) selection.getFirstElement();
	IInstallFeatureOperation job = (IInstallFeatureOperation) siteViewer.getInput();
	if (job != null) {
	JobTargetSite jobSite = (JobTargetSite) targetSites.get(job);
	jobSite.targetSite = site;
	pageChanged();
	}
	updateStatus(site);
	}

	private void addTargetLocation() {
	DirectoryDialog dd = new DirectoryDialog(getContainer().getShell());
	dd.setMessage(UpdateUI.getString("InstallWizard.TargetPage.location.message")); //$NON-NLS-1$
	String path = dd.open();
	if (path != null) {
	addConfiguredSite(getContainer().getShell(), config, new File(path));
	}
	}

	private void removeSelection() throws CoreException {
	IStructuredSelection selection = (IStructuredSelection) siteViewer.getSelection();
	for (Iterator iter = selection.iterator(); iter.hasNext();) {
	config.removeConfiguredSite((IConfiguredSite) iter.next());
	}
	}

	private IConfiguredSite addConfiguredSite(
	Shell shell,
	IInstallConfiguration config,
	File file) {
	try {
	IConfiguredSite csite = config.createConfiguredSite(file);
	IStatus status = csite.verifyUpdatableStatus();
	if (status.isOK())
	config.addConfiguredSite(csite);
	else
	throw new CoreException(status);

	return csite;
	} catch (CoreException e) {
	String title = UpdateUI.getString("InstallWizard.TargetPage.location.error.title"); //$NON-NLS-1$
	ErrorDialog.openError(shell, title, null, e.getStatus());
	UpdateUI.logException(e);
	return null;
	}
	}

	private void updateStatus(Object element) {
	if (element == null) {
	requiredSpaceLabel.setText(""); //$NON-NLS-1$
	availableSpaceLabel.setText(""); //$NON-NLS-1$
	return;
	}
	IConfiguredSite site = (IConfiguredSite) element;
	File file = new File(site.getSite().getURL().getFile());
	long available = LocalSystemInfo.getFreeSpace(file);
	long required = computeRequiredSizeFor(site);
	if (required == -1)
	requiredSpaceLabel.setText(UpdateUI.getString("InstallWizard.TargetPage.unknownSize")); //$NON-NLS-1$
	else
	requiredSpaceLabel.setText(
	UpdateUI.getFormattedMessage("InstallWizard.TargetPage.size", "" + required)); //$NON-NLS-1$ //$NON-NLS-2$

	if (available == LocalSystemInfo.SIZE_UNKNOWN)
	availableSpaceLabel.setText(UpdateUI.getString("InstallWizard.TargetPage.unknownSize")); //$NON-NLS-1$
	else
	availableSpaceLabel.setText(
	UpdateUI.getFormattedMessage("InstallWizard.TargetPage.size", "" + available)); //$NON-NLS-1$ //$NON-NLS-2$
	}

	private long computeRequiredSizeFor(IConfiguredSite site) {
	long totalSize = 0;
	for (int i = 0; i < jobs.length; i++) {
	JobTargetSite jobSite = (JobTargetSite) targetSites.get(jobs[i]);
	if (site.equals(jobSite.targetSite)) {
	long jobSize = site.getSite().getInstallSizeFor(jobs[i].getFeature());
	if (jobSize == -1)
	return -1;
	totalSize += jobSize;
	}
	}
	return totalSize;
	}

	private void pageChanged() {
	boolean empty = false;
	for (Iterator enum = targetSites.keySet().iterator(); enum.hasNext();) {
	JobTargetSite jobSite = (JobTargetSite) targetSites.get(enum.next());
	if (jobSite.targetSite == null) {
	empty = true;
	break;
	}
	IFeature feature = jobSite.job.getFeature();
	if (feature.isPatch()) {
	// Patches must go together with the features
	// they are patching.
	JobTargetSite patchedSite = targetSites.findPatchedFeature(feature);
	if (patchedSite != null
	&& jobSite.targetSite != null
	&& patchedSite.targetSite != null
	&& jobSite.targetSite.equals(patchedSite.targetSite) == false) {
	UpdateUI.getFormattedMessage(
	"IntallWizard.TargetPage.patchError", //$NON-NLS-1$
	new String[] {
	feature.getLabel(),
	patchedSite.job.getFeature().getLabel()});
	setPageComplete(false);
	return;
	}
	}
	}
	verifyNotEmpty(empty);
	}

	public IConfiguredSite getTargetSite(IInstallFeatureOperation job) {
	return targetSites.getTargetSite(job);
	}

	public JobTargetSite[] getTargetSites() {
	JobTargetSite[] sites = new JobTargetSite[jobs.length];
	for (int i = 0; i < jobs.length; i++) {
	JobTargetSite jobSite = (JobTargetSite) targetSites.get(jobs[i]);
	sites[i] = jobSite;
	}
	return sites;
	}

	void removeAddedSites() {
	if (added != null) {
	for (Iterator it = added.iterator(); it.hasNext(); )
	config.removeConfiguredSite((IConfiguredSite) it.next());
	}

	}
	}