bundles/org.eclipse.ui/Eclipse UI/org/eclipse/ui/internal/dialogs/AboutPluginsDialog.java - platform/eclipse.platform.ui - Git at Google

 package org.eclipse.ui.internal.dialogs;

 /*
  * (c) Copyright IBM Corp. 2000, 2001.
  * All Rights Reserved.
  */

 import java.io.IOException;
 import java.net.URL;
 import java.text.Collator;
 import java.util.*;

 import org.eclipse.core.runtime.*;
 import org.eclipse.jface.dialogs.Dialog;
 import org.eclipse.jface.dialogs.IDialogConstants;

 import org.eclipse.jface.dialogs.MessageDialog;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.*;
 import org.eclipse.swt.layout.*;
 import org.eclipse.swt.program.Program;
 import org.eclipse.swt.widgets.*;

 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.help.WorkbenchHelp;
 import org.eclipse.ui.internal.*;

 /**
  * Displays information about the product plugins.
  *
  * @private
  *		This class is internal to the workbench and must not be called outside the workbench
  */
 public class AboutPluginsDialog extends Dialog {

 	/**
 	 * Table height in dialog units (value 200).
 	 */
 	private static final int TABLE_HEIGHT = 200;

 	private static final String PLUGININFO = "about.html";	//$NON-NLS-1$

 	private boolean webBrowserOpened = false;

 	private Table vendorInfo;
 	private Button moreInfo;

 	private String columnTitles[] =
 		{ WorkbenchMessages.getString("AboutPluginsDialog.provider"), //$NON-NLS-1$
 		WorkbenchMessages.getString("AboutPluginsDialog.pluginName"), //$NON-NLS-1$
 		WorkbenchMessages.getString("AboutPluginsDialog.version"), //$NON-NLS-1$
 	};

 	private IPluginDescriptor[] info;

 	private AboutInfo aboutInfo;

 	private int lastColumnChosen = 0;	// initially sort by provider
 	private boolean reverseSort = false;	// initially sort ascending
 	private IPluginDescriptor lastSelection = null;

 	/**
 	 * Constructor for AboutPluginsDialog
 	 */
 	public AboutPluginsDialog(Shell parentShell) {
 		super(parentShell);
 		info = Platform.getPluginRegistry().getPluginDescriptors();
 		sortByProvider();
 		aboutInfo = ((Workbench) PlatformUI.getWorkbench()).getAboutInfo();
 	}

 	/* (non-Javadoc)
 	 * Method declared on Window.
 	 */
 	protected void configureShell(Shell newShell) {
 		super.configureShell(newShell);
 		String title = aboutInfo.getProductName();
 		if (title != null) {
 			newShell.setText(
 				WorkbenchMessages.format(
 					"AboutPluginsDialog.shellTitle",	//$NON-NLS-1$
 					new Object[] {title}));
 		}
 		WorkbenchHelp.setHelp(
 			newShell,
 			IHelpContextIds.ABOUT_PLUGINS_DIALOG);
 	}
 	/**
 	 * Add buttons to the dialog's button bar.
 	 *
 	 * Subclasses should override.
 	 *
 	 * @param parent the button bar composite
 	 */
 	protected void createButtonsForButtonBar(Composite parent) {
 		createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true);
 	}
 	/**
 	 * Create the contents of the dialog (above the button bar).
 	 *
 	 * Subclasses should overide.
 	 *
 	 * @param the parent composite to contain the dialog area
 	 * @return the dialog area control
 	 */
 	protected Control createDialogArea(Composite parent) {

 		Composite outer = (Composite) super.createDialogArea(parent);

 		createTable(outer);
 		createColumns();
 		createMoreButton(outer);

 		GridData gridData =
 			new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL);
 		gridData.grabExcessVerticalSpace = true;
 		gridData.grabExcessHorizontalSpace = true;

 		// suggest a height for the table
 		gridData.heightHint = convertVerticalDLUsToPixels(TABLE_HEIGHT);
 		vendorInfo.setLayoutData(gridData);

 		return outer;
 	}
 	/**
 	 * Create the table part of the dialog.
 	 *
 	 * @param the parent composite to contain the dialog area
 	 */
 	protected void createTable(Composite parent) {
 		vendorInfo =
 			new Table(
 				parent,
 				SWT.H_SCROLL | SWT.V_SCROLL | SWT.SINGLE | SWT.FULL_SELECTION | SWT.BORDER);
 		vendorInfo.setHeaderVisible(true);
 		vendorInfo.setLinesVisible(true);

 		SelectionListener listener = new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				setMoreButtonEnablement(e.item != null);
 			}
 		};
 		vendorInfo.addSelectionListener(listener);
 	}
 	/**
 	 * Populate the table with plugin info obtained from the registry.
 	 *
 	 * @param the parent composite to contain the dialog area
 	 */
 	protected void createColumns() {
 		/* create table headers */
 		int[] columnWidths =
 			{
 				convertHorizontalDLUsToPixels(165),
 				convertHorizontalDLUsToPixels(165),
 				convertHorizontalDLUsToPixels(50)};
 		for (int i = 0; i < columnTitles.length; i++) {
 			TableColumn tableColumn = new TableColumn(vendorInfo, SWT.NULL);
 			tableColumn.setWidth(columnWidths[i]);
 			tableColumn.setText(columnTitles[i]);
 			final int columnIndex = i;
 			tableColumn.addSelectionListener(new SelectionAdapter() {
 				public void widgetSelected(SelectionEvent e) {
 					sort(columnIndex);
 				}
 			});

 		}

 		/* fill each row of the table with plugin registry info */
 		for (int i = 0; i < info.length; i++) {
 			String provider = info[i].getProviderName();
 			String pluginName = info[i].getLabel();
 			String version = info[i].getVersionIdentifier().toString();
 			String[] row = { provider, pluginName, version };
 			TableItem item = new TableItem(vendorInfo, SWT.NULL);
 			item.setText(row);
 		}
 	}
 	/**
 	 * Create the button to provide more info on the selected plugin.
 	 *
 	 * @param the parent composite to contain the dialog area
 	 */
 	protected void createMoreButton(Composite parent) {
 		moreInfo = new Button(parent, SWT.PUSH);
 		moreInfo.setText(WorkbenchMessages.getString("AboutPluginsDialog.moreInfo"));	//$NON-NLS-1$
 		GridData data = new GridData();
 		data.heightHint = convertVerticalDLUsToPixels(IDialogConstants.BUTTON_HEIGHT);
 		int widthHint = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH);
 		data.widthHint =
 			Math.max(widthHint, moreInfo.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x);
 		moreInfo.setLayoutData(data);
 		// set initial enablement
 		moreInfo.setEnabled(tableHasSelection() & selectionHasInfo());

 		SelectionListener listener = new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				handleMoreInfoPressed();
 			}
 		};

 		moreInfo.addSelectionListener(listener);

 	}

 	/**
 	 * Set enablement of moreInfo button based on whether or not
 	 * there is a selection in the table and if there is any additional
 	 * info to show for that plugin.
 	 *
 	 * @param isSelected whether there is a selection in the table
 	 */
 	protected void setMoreButtonEnablement(boolean isSelected) {
 		moreInfo.setEnabled(isSelected && selectionHasInfo());
 	}

 	/**
 	 * Check if the currently selected plugin has additional
 	 * information to show.
 	 *
 	 * @return true if the selected plugin has additional info available to display
 	 */
 	private boolean selectionHasInfo(){
 			TableItem[] items = vendorInfo.getSelection();
 			if (items.length == 0)
 				return false;
 			int i = vendorInfo.getSelectionIndex();
 			IPluginDescriptor desc = info[i];
 			URL infoURL = desc.find(new Path(PLUGININFO));
 			if (infoURL == null && WorkbenchPlugin.DEBUG) {
 				// only report ini problems if the -debug command line argument is used
 				WorkbenchPlugin.log("Problem reading plugin info for: " + desc.getLabel()); //$NON-NLS-1$
 			}
 			return infoURL != null;
 	}

 	/**
 	 * Create the button to provide more info on the selected plugin.
 	 *
 	 * @return true if there is an item selected in the table, false otherwise
 	 */
 	private boolean tableHasSelection() {
 		if (vendorInfo == null)
 			return false;
 		return (vendorInfo.getSelectionCount() > 0);

 	}

 	/**
 	 * Respond to moreInfo button pressed.
 	 *
 	 */
 	protected void handleMoreInfoPressed() {
 		TableItem[] items = vendorInfo.getSelection();
 		if (items.length == 0)
 			return;
 		int i = vendorInfo.getSelectionIndex();
 		IPluginDescriptor desc = info[i];
 		openMoreInfo(desc);
 	}
 	/**
 	 * Open html file containing additional info about the selected
 	 * plugin.
 	 *
 	 */
 	private void openMoreInfo(IPluginDescriptor desc) {
 		URL infoURL = desc.find(new Path(PLUGININFO));
 		if (infoURL == null) {
 			MessageDialog.openError(
 				getShell(),
 				WorkbenchMessages.getString("AboutPluginsDialog.errorTitle"), //$NON-NLS-1$
 				WorkbenchMessages.format("AboutPluginsDialog.unableToOpenFile", new Object[] {PLUGININFO, desc.getUniqueIdentifier()})); //$NON-NLS-1$
 			return;
 		}

 		final URL url = infoURL;
 		if (SWT.getPlatform().equals("win32")) {	//$NON-NLS-1$
 			Program.launch(url.toString());
 		} else {
 			Thread launcher = new Thread("Plugin Info Launcher") {	//$NON-NLS-1$
 				public void run() {
 					try {
 						if (webBrowserOpened) {
 							Runtime.getRuntime().exec("netscape -remote openURL(" + url.toString() + ")");	//$NON-NLS-1$ //$NON-NLS-2$
 						} else {
 							Process p = Runtime.getRuntime().exec("netscape " + url.toString());	//$NON-NLS-1$
 							webBrowserOpened = true;
 							try {
 								if (p != null)
 									p.waitFor();
 							} catch (InterruptedException e) {
 								MessageDialog.openError(AboutPluginsDialog.this.getShell(), WorkbenchMessages.getString("AboutPluginsDialog.errorTitle"), //$NON-NLS-1$
 								e.getMessage());
 							} finally {
 								webBrowserOpened = false;
 							}
 						}
 					} catch (IOException e) {
 						MessageDialog.openError(AboutPluginsDialog.this.getShell(), WorkbenchMessages.getString("AboutPluginsDialog.errorTitle"), //$NON-NLS-1$
 						e.getMessage());

 					}
 				}
 			};
 			launcher.start();
 		}
 	}

 	/**
 	 * Sort the rows of the table based on the selected column.
 	 *
 	 * @param column index of table column selected as sort criteria
 	 */
 	private void sort(int column) {
 		// Choose new sort algorithm
 		if (lastColumnChosen == column){
 			reverseSort = !reverseSort;
 		}
 		else{
 			reverseSort = false;
 			lastColumnChosen = column;
 		}

 		if(vendorInfo.getItemCount() <= 1)	return;

 		// Remember the last selection
 		int idx = vendorInfo.getSelectionIndex();
 		if (idx != -1)
 			lastSelection = info[idx];

 		switch (column){
 			case 0:
 				sortByProvider();
 				break;
 			case 1:
 				sortById();
 				break;
 			case 2:
 				sortByVersion();
 				break;
 		}

 		refreshTable(column);
 	}

 	/**
 	 * Refresh the rows of the table based on the selected column.
 	 * Maintain selection from before sort action request.
 	 *
 	 * @param items the old state table items
 	 */
 	private void refreshTable(int col){
 		TableItem[] items = vendorInfo.getItems();
 		int idx = -1;	// the new index of the selection
 		// Create new order of table items
 		for(int i = 0; i < items.length; i++) {
 			String provider = info[i].getProviderName();
 			String pluginName = info[i].getLabel();
 			String version = info[i].getVersionIdentifier().toString();
 			String [] row = { provider, pluginName, version };
 			items[i].setText(row);
 		}
 		// Maintain the original selection
 		if (lastSelection != null){
 			String oldId = lastSelection.getUniqueIdentifier();
 			for (int k = 0; k < info.length; k++){
 				if (oldId.equalsIgnoreCase(info[k].getUniqueIdentifier()))
 					idx = k;
 			}
 			vendorInfo.setSelection(idx);
 			vendorInfo.showSelection();
 		}

 		moreInfo.setEnabled(tableHasSelection() && selectionHasInfo());
 	}
 	/**
 	 * Sort the rows of the table based on the plugin provider.
 	 * Secondary criteria is unique plugin id.
 	 */
 	private void sortByProvider(){
 		/* If sorting in reverse, info array is already sorted forward by
 		 * key so the info array simply needs to be reversed.
 		 */
 		if (reverseSort){
 			java.util.List infoList = Arrays.asList(info);
 			Collections.reverse(infoList);
 			for (int i=0; i< info.length; i++){
 				info[i] = (IPluginDescriptor)infoList.get(i);
 			}
 		}
 		else {
 			// Sort ascending
 			Arrays.sort(info, new Comparator() {
 				Collator coll = Collator.getInstance(Locale.getDefault());
 				public int compare(Object a, Object b) {
 					IPluginDescriptor d1, d2;
 					String provider1, provider2, pluginId1, pluginId2;
 					d1 = (IPluginDescriptor) a;
 					provider1 = d1.getProviderName();
 					pluginId1 = d1.getLabel();
 					d2 = (IPluginDescriptor) b;
 					provider2 = d2.getProviderName();
 					pluginId2 = d2.getLabel();
 					if (provider1.equals(provider2))
 						return coll.compare(pluginId1, pluginId2);
 					else
 						return coll.compare(provider1, provider2);
 				}
 			});
 		}
 	}
 	/**
 	 * Sort the rows of the table based on unique plugin id.
 	 */
 	private void sortById(){
 		/* If sorting in reverse, info array is already sorted forward by
 		 * key so the info array simply needs to be reversed.
 		 */
 		if (reverseSort){
 			java.util.List infoList = Arrays.asList(info);
 			Collections.reverse(infoList);
 			for (int i=0; i< info.length; i++){
 				info[i] = (IPluginDescriptor)infoList.get(i);
 			}
 		}
 		else {
 			// Sort ascending
 			Arrays.sort(info, new Comparator() {
 				Collator coll = Collator.getInstance(Locale.getDefault());
 				public int compare(Object a, Object b) {
 					IPluginDescriptor d1, d2;
 					String pluginId1, pluginId2;
 					d1 = (IPluginDescriptor) a;
 					pluginId1 = d1.getLabel();
 					d2 = (IPluginDescriptor) b;
 					pluginId2 = d2.getLabel();
 					return coll.compare(pluginId1, pluginId2);
 				}
 			});
 		}

 	}
 	/**
 	 * Sort the rows of the table based on the plugin version.
 	 * Secondary criteria is unique plugin id.
 	 */
 	private void sortByVersion(){
 		/* If sorting in reverse, info array is already sorted forward by
 		 * key so the info array simply needs to be reversed.
 		 */
 		if (reverseSort){
 			java.util.List infoList = Arrays.asList(info);
 			Collections.reverse(infoList);
 			for (int i=0; i< info.length; i++){
 				info[i] = (IPluginDescriptor)infoList.get(i);
 			}
 		}
 		else {
 			// Sort ascending
 			Arrays.sort(info, new Comparator() {
 				Collator coll = Collator.getInstance(Locale.getDefault());
 				public int compare(Object a, Object b) {
 					IPluginDescriptor d1, d2;
 					String version1, version2, pluginId1, pluginId2;
 					d1 = (IPluginDescriptor) a;
 					version1 = d1.getVersionIdentifier().toString();
 					pluginId1 = d1.getLabel();
 					d2 = (IPluginDescriptor) b;
 					version2 = d2.getVersionIdentifier().toString();
 					pluginId2 = d2.getLabel();
 					if (version1.equals(version2))
 						return coll.compare(pluginId1, pluginId2);
 					else
 						return coll.compare(version1, version2);
 				}
 			});
 		}
 	}

 }
	package org.eclipse.ui.internal.dialogs;

	/*
	* (c) Copyright IBM Corp. 2000, 2001.
	* All Rights Reserved.
	*/

	import java.io.IOException;
	import java.net.URL;
	import java.text.Collator;
	import java.util.*;

	import org.eclipse.core.runtime.*;
	import org.eclipse.jface.dialogs.Dialog;
	import org.eclipse.jface.dialogs.IDialogConstants;

	import org.eclipse.jface.dialogs.MessageDialog;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.*;
	import org.eclipse.swt.layout.*;
	import org.eclipse.swt.program.Program;
	import org.eclipse.swt.widgets.*;

	import org.eclipse.ui.PlatformUI;
	import org.eclipse.ui.help.WorkbenchHelp;
	import org.eclipse.ui.internal.*;

	/**
	* Displays information about the product plugins.
	*
	* @private
	* This class is internal to the workbench and must not be called outside the workbench
	*/
	public class AboutPluginsDialog extends Dialog {

	/**
	* Table height in dialog units (value 200).
	*/
	private static final int TABLE_HEIGHT = 200;

	private static final String PLUGININFO = "about.html"; //$NON-NLS-1$

	private boolean webBrowserOpened = false;

	private Table vendorInfo;
	private Button moreInfo;

	private String columnTitles[] =
	{ WorkbenchMessages.getString("AboutPluginsDialog.provider"), //$NON-NLS-1$
	WorkbenchMessages.getString("AboutPluginsDialog.pluginName"), //$NON-NLS-1$
	WorkbenchMessages.getString("AboutPluginsDialog.version"), //$NON-NLS-1$
	};

	private IPluginDescriptor[] info;

	private AboutInfo aboutInfo;

	private int lastColumnChosen = 0; // initially sort by provider
	private boolean reverseSort = false; // initially sort ascending
	private IPluginDescriptor lastSelection = null;

	/**
	* Constructor for AboutPluginsDialog
	*/
	public AboutPluginsDialog(Shell parentShell) {
	super(parentShell);
	info = Platform.getPluginRegistry().getPluginDescriptors();
	sortByProvider();
	aboutInfo = ((Workbench) PlatformUI.getWorkbench()).getAboutInfo();
	}

	/* (non-Javadoc)
	* Method declared on Window.
	*/
	protected void configureShell(Shell newShell) {
	super.configureShell(newShell);
	String title = aboutInfo.getProductName();
	if (title != null) {
	newShell.setText(
	WorkbenchMessages.format(
	"AboutPluginsDialog.shellTitle", //$NON-NLS-1$
	new Object[] {title}));
	}
	WorkbenchHelp.setHelp(
	newShell,
	IHelpContextIds.ABOUT_PLUGINS_DIALOG);
	}
	/**
	* Add buttons to the dialog's button bar.
	*
	* Subclasses should override.
	*
	* @param parent the button bar composite
	*/
	protected void createButtonsForButtonBar(Composite parent) {
	createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true);
	}
	/**
	* Create the contents of the dialog (above the button bar).
	*
	* Subclasses should overide.
	*
	* @param the parent composite to contain the dialog area
	* @return the dialog area control
	*/
	protected Control createDialogArea(Composite parent) {

	Composite outer = (Composite) super.createDialogArea(parent);

	createTable(outer);
	createColumns();
	createMoreButton(outer);

	GridData gridData =
	new GridData(GridData.HORIZONTAL_ALIGN_FILL \| GridData.VERTICAL_ALIGN_FILL);
	gridData.grabExcessVerticalSpace = true;
	gridData.grabExcessHorizontalSpace = true;

	// suggest a height for the table
	gridData.heightHint = convertVerticalDLUsToPixels(TABLE_HEIGHT);
	vendorInfo.setLayoutData(gridData);

	return outer;
	}
	/**
	* Create the table part of the dialog.
	*
	* @param the parent composite to contain the dialog area
	*/
	protected void createTable(Composite parent) {
	vendorInfo =
	new Table(
	parent,
	SWT.H_SCROLL \| SWT.V_SCROLL \| SWT.SINGLE \| SWT.FULL_SELECTION \| SWT.BORDER);
	vendorInfo.setHeaderVisible(true);
	vendorInfo.setLinesVisible(true);

	SelectionListener listener = new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	setMoreButtonEnablement(e.item != null);
	}
	};
	vendorInfo.addSelectionListener(listener);
	}
	/**
	* Populate the table with plugin info obtained from the registry.
	*
	* @param the parent composite to contain the dialog area
	*/
	protected void createColumns() {
	/* create table headers */
	int[] columnWidths =
	{
	convertHorizontalDLUsToPixels(165),
	convertHorizontalDLUsToPixels(165),
	convertHorizontalDLUsToPixels(50)};
	for (int i = 0; i < columnTitles.length; i++) {
	TableColumn tableColumn = new TableColumn(vendorInfo, SWT.NULL);
	tableColumn.setWidth(columnWidths[i]);
	tableColumn.setText(columnTitles[i]);
	final int columnIndex = i;
	tableColumn.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	sort(columnIndex);
	}
	});

	}

	/* fill each row of the table with plugin registry info */
	for (int i = 0; i < info.length; i++) {
	String provider = info[i].getProviderName();
	String pluginName = info[i].getLabel();
	String version = info[i].getVersionIdentifier().toString();
	String[] row = { provider, pluginName, version };
	TableItem item = new TableItem(vendorInfo, SWT.NULL);
	item.setText(row);
	}
	}
	/**
	* Create the button to provide more info on the selected plugin.
	*
	* @param the parent composite to contain the dialog area
	*/
	protected void createMoreButton(Composite parent) {
	moreInfo = new Button(parent, SWT.PUSH);
	moreInfo.setText(WorkbenchMessages.getString("AboutPluginsDialog.moreInfo")); //$NON-NLS-1$
	GridData data = new GridData();
	data.heightHint = convertVerticalDLUsToPixels(IDialogConstants.BUTTON_HEIGHT);
	int widthHint = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH);
	data.widthHint =
	Math.max(widthHint, moreInfo.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x);
	moreInfo.setLayoutData(data);
	// set initial enablement
	moreInfo.setEnabled(tableHasSelection() & selectionHasInfo());

	SelectionListener listener = new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	handleMoreInfoPressed();
	}
	};

	moreInfo.addSelectionListener(listener);

	}

	/**
	* Set enablement of moreInfo button based on whether or not
	* there is a selection in the table and if there is any additional
	* info to show for that plugin.
	*
	* @param isSelected whether there is a selection in the table
	*/
	protected void setMoreButtonEnablement(boolean isSelected) {
	moreInfo.setEnabled(isSelected && selectionHasInfo());
	}

	/**
	* Check if the currently selected plugin has additional
	* information to show.
	*
	* @return true if the selected plugin has additional info available to display
	*/
	private boolean selectionHasInfo(){
	TableItem[] items = vendorInfo.getSelection();
	if (items.length == 0)
	return false;
	int i = vendorInfo.getSelectionIndex();
	IPluginDescriptor desc = info[i];
	URL infoURL = desc.find(new Path(PLUGININFO));
	if (infoURL == null && WorkbenchPlugin.DEBUG) {
	// only report ini problems if the -debug command line argument is used
	WorkbenchPlugin.log("Problem reading plugin info for: " + desc.getLabel()); //$NON-NLS-1$
	}
	return infoURL != null;
	}

	/**
	* Create the button to provide more info on the selected plugin.
	*
	* @return true if there is an item selected in the table, false otherwise
	*/
	private boolean tableHasSelection() {
	if (vendorInfo == null)
	return false;
	return (vendorInfo.getSelectionCount() > 0);

	}

	/**
	* Respond to moreInfo button pressed.
	*
	*/
	protected void handleMoreInfoPressed() {
	TableItem[] items = vendorInfo.getSelection();
	if (items.length == 0)
	return;
	int i = vendorInfo.getSelectionIndex();
	IPluginDescriptor desc = info[i];
	openMoreInfo(desc);
	}
	/**
	* Open html file containing additional info about the selected
	* plugin.
	*
	*/
	private void openMoreInfo(IPluginDescriptor desc) {
	URL infoURL = desc.find(new Path(PLUGININFO));
	if (infoURL == null) {
	MessageDialog.openError(
	getShell(),
	WorkbenchMessages.getString("AboutPluginsDialog.errorTitle"), //$NON-NLS-1$
	WorkbenchMessages.format("AboutPluginsDialog.unableToOpenFile", new Object[] {PLUGININFO, desc.getUniqueIdentifier()})); //$NON-NLS-1$
	return;
	}

	final URL url = infoURL;
	if (SWT.getPlatform().equals("win32")) { //$NON-NLS-1$
	Program.launch(url.toString());
	} else {
	Thread launcher = new Thread("Plugin Info Launcher") { //$NON-NLS-1$
	public void run() {
	try {
	if (webBrowserOpened) {
	Runtime.getRuntime().exec("netscape -remote openURL(" + url.toString() + ")"); //$NON-NLS-1$ //$NON-NLS-2$
	} else {
	Process p = Runtime.getRuntime().exec("netscape " + url.toString()); //$NON-NLS-1$
	webBrowserOpened = true;
	try {
	if (p != null)
	p.waitFor();
	} catch (InterruptedException e) {
	MessageDialog.openError(AboutPluginsDialog.this.getShell(), WorkbenchMessages.getString("AboutPluginsDialog.errorTitle"), //$NON-NLS-1$
	e.getMessage());
	} finally {
	webBrowserOpened = false;
	}
	}
	} catch (IOException e) {
	MessageDialog.openError(AboutPluginsDialog.this.getShell(), WorkbenchMessages.getString("AboutPluginsDialog.errorTitle"), //$NON-NLS-1$
	e.getMessage());

	}
	}
	};
	launcher.start();
	}
	}

	/**
	* Sort the rows of the table based on the selected column.
	*
	* @param column index of table column selected as sort criteria
	*/
	private void sort(int column) {
	// Choose new sort algorithm
	if (lastColumnChosen == column){
	reverseSort = !reverseSort;
	}
	else{
	reverseSort = false;
	lastColumnChosen = column;
	}

	if(vendorInfo.getItemCount() <= 1) return;

	// Remember the last selection
	int idx = vendorInfo.getSelectionIndex();
	if (idx != -1)
	lastSelection = info[idx];

	switch (column){
	case 0:
	sortByProvider();
	break;
	case 1:
	sortById();
	break;
	case 2:
	sortByVersion();
	break;
	}

	refreshTable(column);
	}

	/**
	* Refresh the rows of the table based on the selected column.
	* Maintain selection from before sort action request.
	*
	* @param items the old state table items
	*/
	private void refreshTable(int col){
	TableItem[] items = vendorInfo.getItems();
	int idx = -1; // the new index of the selection
	// Create new order of table items
	for(int i = 0; i < items.length; i++) {
	String provider = info[i].getProviderName();
	String pluginName = info[i].getLabel();
	String version = info[i].getVersionIdentifier().toString();
	String [] row = { provider, pluginName, version };
	items[i].setText(row);
	}
	// Maintain the original selection
	if (lastSelection != null){
	String oldId = lastSelection.getUniqueIdentifier();
	for (int k = 0; k < info.length; k++){
	if (oldId.equalsIgnoreCase(info[k].getUniqueIdentifier()))
	idx = k;
	}
	vendorInfo.setSelection(idx);
	vendorInfo.showSelection();
	}

	moreInfo.setEnabled(tableHasSelection() && selectionHasInfo());
	}
	/**
	* Sort the rows of the table based on the plugin provider.
	* Secondary criteria is unique plugin id.
	*/
	private void sortByProvider(){
	/* If sorting in reverse, info array is already sorted forward by
	* key so the info array simply needs to be reversed.
	*/
	if (reverseSort){
	java.util.List infoList = Arrays.asList(info);
	Collections.reverse(infoList);
	for (int i=0; i< info.length; i++){
	info[i] = (IPluginDescriptor)infoList.get(i);
	}
	}
	else {
	// Sort ascending
	Arrays.sort(info, new Comparator() {
	Collator coll = Collator.getInstance(Locale.getDefault());
	public int compare(Object a, Object b) {
	IPluginDescriptor d1, d2;
	String provider1, provider2, pluginId1, pluginId2;
	d1 = (IPluginDescriptor) a;
	provider1 = d1.getProviderName();
	pluginId1 = d1.getLabel();
	d2 = (IPluginDescriptor) b;
	provider2 = d2.getProviderName();
	pluginId2 = d2.getLabel();
	if (provider1.equals(provider2))
	return coll.compare(pluginId1, pluginId2);
	else
	return coll.compare(provider1, provider2);
	}
	});
	}
	}
	/**
	* Sort the rows of the table based on unique plugin id.
	*/
	private void sortById(){
	/* If sorting in reverse, info array is already sorted forward by
	* key so the info array simply needs to be reversed.
	*/
	if (reverseSort){
	java.util.List infoList = Arrays.asList(info);
	Collections.reverse(infoList);
	for (int i=0; i< info.length; i++){
	info[i] = (IPluginDescriptor)infoList.get(i);
	}
	}
	else {
	// Sort ascending
	Arrays.sort(info, new Comparator() {
	Collator coll = Collator.getInstance(Locale.getDefault());
	public int compare(Object a, Object b) {
	IPluginDescriptor d1, d2;
	String pluginId1, pluginId2;
	d1 = (IPluginDescriptor) a;
	pluginId1 = d1.getLabel();
	d2 = (IPluginDescriptor) b;
	pluginId2 = d2.getLabel();
	return coll.compare(pluginId1, pluginId2);
	}
	});
	}

	}
	/**
	* Sort the rows of the table based on the plugin version.
	* Secondary criteria is unique plugin id.
	*/
	private void sortByVersion(){
	/* If sorting in reverse, info array is already sorted forward by
	* key so the info array simply needs to be reversed.
	*/
	if (reverseSort){
	java.util.List infoList = Arrays.asList(info);
	Collections.reverse(infoList);
	for (int i=0; i< info.length; i++){
	info[i] = (IPluginDescriptor)infoList.get(i);
	}
	}
	else {
	// Sort ascending
	Arrays.sort(info, new Comparator() {
	Collator coll = Collator.getInstance(Locale.getDefault());
	public int compare(Object a, Object b) {
	IPluginDescriptor d1, d2;
	String version1, version2, pluginId1, pluginId2;
	d1 = (IPluginDescriptor) a;
	version1 = d1.getVersionIdentifier().toString();
	pluginId1 = d1.getLabel();
	d2 = (IPluginDescriptor) b;
	version2 = d2.getVersionIdentifier().toString();
	pluginId2 = d2.getLabel();
	if (version1.equals(version2))
	return coll.compare(pluginId1, pluginId2);
	else
	return coll.compare(version1, version2);
	}
	});
	}
	}

	}