bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/ProductInfoDialog.java - platform/eclipse.platform.ui - 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.ui.internal.ide.dialogs;

 import java.io.IOException;
 import java.util.ArrayList;

 import org.eclipse.jface.dialogs.Dialog;
 import org.eclipse.jface.dialogs.MessageDialog;
 import org.eclipse.jface.resource.JFaceColors;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.custom.StyleRange;
 import org.eclipse.swt.custom.StyledText;
 import org.eclipse.swt.events.*;
 import org.eclipse.swt.graphics.*;
 import org.eclipse.swt.program.Program;
 import org.eclipse.swt.widgets.Display;
 import org.eclipse.swt.widgets.Shell;
 import org.eclipse.ui.internal.ide.AboutItem;
 import org.eclipse.ui.internal.ide.IDEWorkbenchMessages;

 /**
  * Abstract superclass of about dialogs
  */

 public abstract class ProductInfoDialog extends Dialog{
 	private static final String ATT_HTTP = "http://"; //$NON-NLS-1$
 	private AboutItem item;
 	private boolean webBrowserOpened;
 	private String webBrowser = null;
 	private Cursor handCursor;
 	private Cursor busyCursor;
 	private boolean mouseDown = false;
 	private boolean dragEvent = false;

 /**
  * Create an instance of this Dialog
  */
 public ProductInfoDialog(Shell parentShell) {
 	super(parentShell);
 }

 /**
  * Adds listeners to the given styled text
  */
 protected void addListeners(StyledText styledText) {
 	styledText.addMouseListener(new MouseAdapter() {
 		public void mouseDown(MouseEvent e) {
 			if (e.button != 1) {
 				return;
 			}
 			mouseDown = true;
 		}
 		public void mouseUp(MouseEvent e) {
 			mouseDown = false;
 			StyledText text = (StyledText)e.widget;
 			int offset = text.getCaretOffset();
 			if (dragEvent) {
 				// don't activate a link during a drag/mouse up operation
 				dragEvent = false;
 				if (item != null && item.isLinkAt(offset)) {
 					text.setCursor(handCursor);
 				}
 			} else if (item != null && item.isLinkAt(offset)) {
 				text.setCursor(busyCursor);
 				openLink(item.getLinkAt(offset));
 				StyleRange selectionRange = getCurrentRange(text);
 				text.setSelectionRange(selectionRange.start, selectionRange.length);
 				text.setCursor(null);
 			}
 		}
 	});

 	styledText.addMouseMoveListener(new MouseMoveListener() {
 		public void mouseMove(MouseEvent e) {
 			// Do not change cursor on drag events
 			if (mouseDown) {
 				if (!dragEvent) {
 					StyledText text = (StyledText)e.widget;
 					text.setCursor(null);
 				}
 				dragEvent = true;
 				return;
 			}
 			StyledText text = (StyledText)e.widget;
 			int offset = -1;
 			try {
 				offset = text.getOffsetAtLocation(new Point(e.x, e.y));
 			} catch (IllegalArgumentException ex) {
 				// leave value as -1
 			}
 			if (offset == -1)
 				text.setCursor(null);
 			else if (item != null && item.isLinkAt(offset))
 				text.setCursor(handCursor);
 			else
 				text.setCursor(null);
 		}
 	});

 	styledText.addTraverseListener(new TraverseListener() {
 		public void keyTraversed(TraverseEvent e) {
 			StyledText text = (StyledText)e.widget;
 			switch (e.detail) {
 			case SWT.TRAVERSE_ESCAPE:
 				e.doit = true;
 				break;
 			case SWT.TRAVERSE_TAB_NEXT:
 				//Previously traverse out in the backward direction?
 				Point nextSelection = text.getSelection();
 				int charCount = text.getCharCount();
 				if ((nextSelection.x == charCount) && (nextSelection.y == charCount)){
 					text.setSelection(0);
 				}
 				StyleRange nextRange  = findNextRange(text);
 				if (nextRange == null) {
 					// Next time in start at beginning, also used by
 					// TRAVERSE_TAB_PREVIOUS to indicate we traversed out
 					// in the forward direction
 					text.setSelection(0);
 					e.doit = true;
 				} else {
 					text.setSelectionRange(nextRange.start, nextRange.length);
 					e.doit = true;
 					e.detail = SWT.TRAVERSE_NONE;
 				}
 				break;
 			case SWT.TRAVERSE_TAB_PREVIOUS:
 				//Previously traverse out in the forward direction?
 				Point previousSelection = text.getSelection();
 				if ((previousSelection.x == 0) && (previousSelection.y == 0))
 					text.setSelection(text.getCharCount());
 				StyleRange previousRange = findPreviousRange(text);
 				if (previousRange == null) {
 					// Next time in start at the end, also used by
 					// TRAVERSE_TAB_NEXT to indicate we traversed out
 					// in the backward direction
 					text.setSelection(text.getCharCount());
 					e.doit = true;
 				}
 				else {
 					text.setSelectionRange(previousRange.start, previousRange.length);
 					e.doit = true;
 					e.detail = SWT.TRAVERSE_NONE;
 				}
 				break;
 			default:
 				break;
 			}
 		}
 	});

 	//Listen for Tab and Space to allow keyboard navigation
 	styledText.addKeyListener(new KeyAdapter() {
 		public void keyPressed (KeyEvent event){
 			StyledText text = (StyledText)event.widget;
 			if(event.character == ' ' || event.character == SWT.CR){
 				if(item != null){
 					//Be sure we are in the selection
 					int offset = text.getSelection().x + 1;

 					if (item.isLinkAt(offset)) {
 						text.setCursor(busyCursor);
 						openLink(item.getLinkAt(offset));
 						StyleRange selectionRange = getCurrentRange(text);
 						text.setSelectionRange(selectionRange.start, selectionRange.length);
 						text.setCursor(null);
 					}
 				}
 				return;
 			}
 		}
 	});
 }

 /**
  * Gets the busy cursor.
  * @return the busy cursor
  */
 protected Cursor getBusyCursor() {
 	return busyCursor;
 }

 /**
  * Sets the busy cursor.
  * @param busyCursor the busy cursor
  */
 protected void setBusyCursor(Cursor busyCursor) {
 	this.busyCursor = busyCursor;
 }

 /**
  * Gets the hand cursor.
  * @return Returns a hand cursor
  */
 protected Cursor getHandCursor() {
 	return handCursor;
 }

 /**
  * Sets the hand cursor.
  * @param handCursor The hand cursor to set
  */
 protected void setHandCursor(Cursor handCursor) {
 	this.handCursor = handCursor;
 }

 /**
  * Gets the about item.
  * @return the about item
  */
 protected AboutItem getItem() {
 	return item;
 }

 /**
  * Sets the about item.
  * @param item about item
  */
 protected void setItem(AboutItem item) {
 	this.item = item;
 }

 /**
  * Find the range of the current selection.
  */
 protected StyleRange getCurrentRange(StyledText text){
 	StyleRange[] ranges = text.getStyleRanges();
 	int currentSelectionEnd = text.getSelection().y;
 	int currentSelectionStart = text.getSelection().x;

 	for (int i = 0; i < ranges.length; i++) {
 		if((currentSelectionStart >= ranges[i].start) &&
 			(currentSelectionEnd <= (ranges[i].start + ranges[i].length))) {
 			return ranges[i];
 		}
 	}
 	return null;
 }

 /**
  * Find the next range after the current
  * selection.
  */
 protected StyleRange findNextRange(StyledText text){
 	StyleRange[] ranges = text.getStyleRanges();
 	int currentSelectionEnd = text.getSelection().y;

 	for (int i = 0; i < ranges.length; i++) {
 		if(ranges[i].start >= currentSelectionEnd)
 			return ranges[i];
 	}
 	return null;
 }

 /**
  * Find the previous range before the current selection.
  */
 protected StyleRange findPreviousRange(StyledText text){
 	StyleRange[] ranges = text.getStyleRanges();
 	int currentSelectionStart = text.getSelection().x;

 	for (int i = ranges.length - 1; i > -1; i--) {
 		if((ranges[i].start + ranges[i].length - 1) < currentSelectionStart)
 			return ranges[i];
 	}
 	return null;
 }

 //TODO: Move browser support from Help system, remove this method
 private Process openWebBrowser(String href) throws IOException{
 	Process p = null;
 	if (webBrowser == null) {
 		try {
 			webBrowser = "netscape"; //$NON-NLS-1$
 			p = Runtime.getRuntime().exec(webBrowser + "  " + href); //$NON-NLS-1$;
 		} catch (IOException e) {
 			p = null;
 			webBrowser = "mozilla"; //$NON-NLS-1$
 		}
 	}

 	if (p==null) {
 		try {
 			p = Runtime.getRuntime().exec(webBrowser + " " + href); //$NON-NLS-1$;
 		} catch (IOException e) {
 			p = null;
 			throw e;
 		}
 	}
 	return p;
 }

 /**
  * display an error message
  */
 private void openWebBrowserError(Display display) {
 	display.asyncExec(new Runnable() {
 		public void run() {
 			MessageDialog.openError(getShell(), IDEWorkbenchMessages.getString("ProductInfoDialog.errorTitle"), //$NON-NLS-1$
 			IDEWorkbenchMessages.getString("ProductInfoDialog.unableToOpenWebBrowser")); //$NON-NLS-1$
 		}
 	});
 }
 /**
  * Open a link
  */
 protected void openLink(String href) {
 	// format the href for an html file (file:///<filename.html>
 	// required for Mac only.
 	if (href.startsWith("file:")) { //$NON-NLS-1$
 		href = href.substring(5);
 		while (href.startsWith("/")) { //$NON-NLS-1$
 			href = href.substring(1);
 		}
 		href = "file:///" + href; //$NON-NLS-1$
 	}
 	final String localHref = href;

 	final Display d = Display.getCurrent();
 	String platform = SWT.getPlatform();

 	if ("win32".equals(platform)) { //$NON-NLS-1$
 		Program.launch(localHref);
 	} else if ("carbon".equals(platform)) { //$NON-NLS-1$
 		try {
 			Runtime.getRuntime().exec("/usr/bin/open " + localHref); //$NON-NLS-1$
 		} catch (IOException e) {
 			openWebBrowserError(d);
 		}
 	} else {
 		Thread launcher = new Thread("About Link Launcher") {//$NON-NLS-1$
 			public void run() {
 				try {
 					if (webBrowserOpened) {
 						Runtime.getRuntime().exec(webBrowser + " -remote openURL(" + localHref + ")"); //$NON-NLS-1$ //$NON-NLS-2$
 					} else {
 						Process p = openWebBrowser(localHref);
 						webBrowserOpened = true;
 						try {
 							if (p != null)
 								p.waitFor();
 						} catch (InterruptedException e) {
 							openWebBrowserError(d);
 						} finally {
 							webBrowserOpened = false;
 						}
 					}
 				} catch (IOException e) {
 					openWebBrowserError(d);
 				}
 			}
 		};
 		launcher.start();
 	}
 }

 /**
  * Sets the styled text's bold ranges
  */
 protected void setBoldRanges(StyledText styledText, int[][] boldRanges) {
 	for (int i = 0; i < boldRanges.length; i++) {
 		StyleRange r = new StyleRange(boldRanges[i][0], boldRanges[i][1], null, null, SWT.BOLD);
 		styledText.setStyleRange(r);
 	}
 }

 /**
  * Sets the styled text's link (blue) ranges
  */
 protected void setLinkRanges(StyledText styledText, int[][] linkRanges) {
 	Color fg = JFaceColors.getHyperlinkText(styledText.getShell().getDisplay());
 	for (int i = 0; i < linkRanges.length; i++) {
 		StyleRange r = new StyleRange(linkRanges[i][0], linkRanges[i][1], fg, null);
 		styledText.setStyleRange(r);
 	}
 }

 /**
  * Scan the contents of the about text
  */
 protected AboutItem scan(String s) {
 	int max = s.length();
 	int i = s.indexOf(ATT_HTTP);
 	ArrayList linkRanges = new ArrayList();
 	ArrayList links = new ArrayList();
 	while (i != -1) {
 		int start = i;
 		// look for the first whitespace character
 		boolean found = false;
 		i += ATT_HTTP.length();
 		while (!found && i < max) {
 			found = Character.isWhitespace(s.charAt(i++));
 		}
 		if (i!=max) i--;
 		linkRanges.add(new int[] {start, i - start});
 		links.add(s.substring(start, i));
 		i = s.indexOf(ATT_HTTP, i);
 	}
 	return new AboutItem(
 			s,
 			(int[][])linkRanges.toArray(new int[linkRanges.size()][2]),
 			(String[])links.toArray(new String[links.size()]));
 }

 }
	/*******************************************************************************
	* 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 java.io.IOException;
	import java.util.ArrayList;

	import org.eclipse.jface.dialogs.Dialog;
	import org.eclipse.jface.dialogs.MessageDialog;
	import org.eclipse.jface.resource.JFaceColors;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.custom.StyleRange;
	import org.eclipse.swt.custom.StyledText;
	import org.eclipse.swt.events.*;
	import org.eclipse.swt.graphics.*;
	import org.eclipse.swt.program.Program;
	import org.eclipse.swt.widgets.Display;
	import org.eclipse.swt.widgets.Shell;
	import org.eclipse.ui.internal.ide.AboutItem;
	import org.eclipse.ui.internal.ide.IDEWorkbenchMessages;

	/**
	* Abstract superclass of about dialogs
	*/

	public abstract class ProductInfoDialog extends Dialog{
	private static final String ATT_HTTP = "http://"; //$NON-NLS-1$
	private AboutItem item;
	private boolean webBrowserOpened;
	private String webBrowser = null;
	private Cursor handCursor;
	private Cursor busyCursor;
	private boolean mouseDown = false;
	private boolean dragEvent = false;

	/**
	* Create an instance of this Dialog
	*/
	public ProductInfoDialog(Shell parentShell) {
	super(parentShell);
	}

	/**
	* Adds listeners to the given styled text
	*/
	protected void addListeners(StyledText styledText) {
	styledText.addMouseListener(new MouseAdapter() {
	public void mouseDown(MouseEvent e) {
	if (e.button != 1) {
	return;
	}
	mouseDown = true;
	}
	public void mouseUp(MouseEvent e) {
	mouseDown = false;
	StyledText text = (StyledText)e.widget;
	int offset = text.getCaretOffset();
	if (dragEvent) {
	// don't activate a link during a drag/mouse up operation
	dragEvent = false;
	if (item != null && item.isLinkAt(offset)) {
	text.setCursor(handCursor);
	}
	} else if (item != null && item.isLinkAt(offset)) {
	text.setCursor(busyCursor);
	openLink(item.getLinkAt(offset));
	StyleRange selectionRange = getCurrentRange(text);
	text.setSelectionRange(selectionRange.start, selectionRange.length);
	text.setCursor(null);
	}
	}
	});

	styledText.addMouseMoveListener(new MouseMoveListener() {
	public void mouseMove(MouseEvent e) {
	// Do not change cursor on drag events
	if (mouseDown) {
	if (!dragEvent) {
	StyledText text = (StyledText)e.widget;
	text.setCursor(null);
	}
	dragEvent = true;
	return;
	}
	StyledText text = (StyledText)e.widget;
	int offset = -1;
	try {
	offset = text.getOffsetAtLocation(new Point(e.x, e.y));
	} catch (IllegalArgumentException ex) {
	// leave value as -1
	}
	if (offset == -1)
	text.setCursor(null);
	else if (item != null && item.isLinkAt(offset))
	text.setCursor(handCursor);
	else
	text.setCursor(null);
	}
	});

	styledText.addTraverseListener(new TraverseListener() {
	public void keyTraversed(TraverseEvent e) {
	StyledText text = (StyledText)e.widget;
	switch (e.detail) {
	case SWT.TRAVERSE_ESCAPE:
	e.doit = true;
	break;
	case SWT.TRAVERSE_TAB_NEXT:
	//Previously traverse out in the backward direction?
	Point nextSelection = text.getSelection();
	int charCount = text.getCharCount();
	if ((nextSelection.x == charCount) && (nextSelection.y == charCount)){
	text.setSelection(0);
	}
	StyleRange nextRange = findNextRange(text);
	if (nextRange == null) {
	// Next time in start at beginning, also used by
	// TRAVERSE_TAB_PREVIOUS to indicate we traversed out
	// in the forward direction
	text.setSelection(0);
	e.doit = true;
	} else {
	text.setSelectionRange(nextRange.start, nextRange.length);
	e.doit = true;
	e.detail = SWT.TRAVERSE_NONE;
	}
	break;
	case SWT.TRAVERSE_TAB_PREVIOUS:
	//Previously traverse out in the forward direction?
	Point previousSelection = text.getSelection();
	if ((previousSelection.x == 0) && (previousSelection.y == 0))
	text.setSelection(text.getCharCount());
	StyleRange previousRange = findPreviousRange(text);
	if (previousRange == null) {
	// Next time in start at the end, also used by
	// TRAVERSE_TAB_NEXT to indicate we traversed out
	// in the backward direction
	text.setSelection(text.getCharCount());
	e.doit = true;
	}
	else {
	text.setSelectionRange(previousRange.start, previousRange.length);
	e.doit = true;
	e.detail = SWT.TRAVERSE_NONE;
	}
	break;
	default:
	break;
	}
	}
	});

	//Listen for Tab and Space to allow keyboard navigation
	styledText.addKeyListener(new KeyAdapter() {
	public void keyPressed (KeyEvent event){
	StyledText text = (StyledText)event.widget;
	if(event.character == ' ' \|\| event.character == SWT.CR){
	if(item != null){
	//Be sure we are in the selection
	int offset = text.getSelection().x + 1;

	if (item.isLinkAt(offset)) {
	text.setCursor(busyCursor);
	openLink(item.getLinkAt(offset));
	StyleRange selectionRange = getCurrentRange(text);
	text.setSelectionRange(selectionRange.start, selectionRange.length);
	text.setCursor(null);
	}
	}
	return;
	}
	}
	});
	}

	/**
	* Gets the busy cursor.
	* @return the busy cursor
	*/
	protected Cursor getBusyCursor() {
	return busyCursor;
	}

	/**
	* Sets the busy cursor.
	* @param busyCursor the busy cursor
	*/
	protected void setBusyCursor(Cursor busyCursor) {
	this.busyCursor = busyCursor;
	}

	/**
	* Gets the hand cursor.
	* @return Returns a hand cursor
	*/
	protected Cursor getHandCursor() {
	return handCursor;
	}

	/**
	* Sets the hand cursor.
	* @param handCursor The hand cursor to set
	*/
	protected void setHandCursor(Cursor handCursor) {
	this.handCursor = handCursor;
	}

	/**
	* Gets the about item.
	* @return the about item
	*/
	protected AboutItem getItem() {
	return item;
	}

	/**
	* Sets the about item.
	* @param item about item
	*/
	protected void setItem(AboutItem item) {
	this.item = item;
	}

	/**
	* Find the range of the current selection.
	*/
	protected StyleRange getCurrentRange(StyledText text){
	StyleRange[] ranges = text.getStyleRanges();
	int currentSelectionEnd = text.getSelection().y;
	int currentSelectionStart = text.getSelection().x;

	for (int i = 0; i < ranges.length; i++) {
	if((currentSelectionStart >= ranges[i].start) &&
	(currentSelectionEnd <= (ranges[i].start + ranges[i].length))) {
	return ranges[i];
	}
	}
	return null;
	}

	/**
	* Find the next range after the current
	* selection.
	*/
	protected StyleRange findNextRange(StyledText text){
	StyleRange[] ranges = text.getStyleRanges();
	int currentSelectionEnd = text.getSelection().y;

	for (int i = 0; i < ranges.length; i++) {
	if(ranges[i].start >= currentSelectionEnd)
	return ranges[i];
	}
	return null;
	}

	/**
	* Find the previous range before the current selection.
	*/
	protected StyleRange findPreviousRange(StyledText text){
	StyleRange[] ranges = text.getStyleRanges();
	int currentSelectionStart = text.getSelection().x;

	for (int i = ranges.length - 1; i > -1; i--) {
	if((ranges[i].start + ranges[i].length - 1) < currentSelectionStart)
	return ranges[i];
	}
	return null;
	}

	//TODO: Move browser support from Help system, remove this method
	private Process openWebBrowser(String href) throws IOException{
	Process p = null;
	if (webBrowser == null) {
	try {
	webBrowser = "netscape"; //$NON-NLS-1$
	p = Runtime.getRuntime().exec(webBrowser + " " + href); //$NON-NLS-1$;
	} catch (IOException e) {
	p = null;
	webBrowser = "mozilla"; //$NON-NLS-1$
	}
	}

	if (p==null) {
	try {
	p = Runtime.getRuntime().exec(webBrowser + " " + href); //$NON-NLS-1$;
	} catch (IOException e) {
	p = null;
	throw e;
	}
	}
	return p;
	}

	/**
	* display an error message
	*/
	private void openWebBrowserError(Display display) {
	display.asyncExec(new Runnable() {
	public void run() {
	MessageDialog.openError(getShell(), IDEWorkbenchMessages.getString("ProductInfoDialog.errorTitle"), //$NON-NLS-1$
	IDEWorkbenchMessages.getString("ProductInfoDialog.unableToOpenWebBrowser")); //$NON-NLS-1$
	}
	});
	}
	/**
	* Open a link
	*/
	protected void openLink(String href) {
	// format the href for an html file (file:///<filename.html>
	// required for Mac only.
	if (href.startsWith("file:")) { //$NON-NLS-1$
	href = href.substring(5);
	while (href.startsWith("/")) { //$NON-NLS-1$
	href = href.substring(1);
	}
	href = "file:///" + href; //$NON-NLS-1$
	}
	final String localHref = href;

	final Display d = Display.getCurrent();
	String platform = SWT.getPlatform();

	if ("win32".equals(platform)) { //$NON-NLS-1$
	Program.launch(localHref);
	} else if ("carbon".equals(platform)) { //$NON-NLS-1$
	try {
	Runtime.getRuntime().exec("/usr/bin/open " + localHref); //$NON-NLS-1$
	} catch (IOException e) {
	openWebBrowserError(d);
	}
	} else {
	Thread launcher = new Thread("About Link Launcher") {//$NON-NLS-1$
	public void run() {
	try {
	if (webBrowserOpened) {
	Runtime.getRuntime().exec(webBrowser + " -remote openURL(" + localHref + ")"); //$NON-NLS-1$ //$NON-NLS-2$
	} else {
	Process p = openWebBrowser(localHref);
	webBrowserOpened = true;
	try {
	if (p != null)
	p.waitFor();
	} catch (InterruptedException e) {
	openWebBrowserError(d);
	} finally {
	webBrowserOpened = false;
	}
	}
	} catch (IOException e) {
	openWebBrowserError(d);
	}
	}
	};
	launcher.start();
	}
	}

	/**
	* Sets the styled text's bold ranges
	*/
	protected void setBoldRanges(StyledText styledText, int[][] boldRanges) {
	for (int i = 0; i < boldRanges.length; i++) {
	StyleRange r = new StyleRange(boldRanges[i][0], boldRanges[i][1], null, null, SWT.BOLD);
	styledText.setStyleRange(r);
	}
	}

	/**
	* Sets the styled text's link (blue) ranges
	*/
	protected void setLinkRanges(StyledText styledText, int[][] linkRanges) {
	Color fg = JFaceColors.getHyperlinkText(styledText.getShell().getDisplay());
	for (int i = 0; i < linkRanges.length; i++) {
	StyleRange r = new StyleRange(linkRanges[i][0], linkRanges[i][1], fg, null);
	styledText.setStyleRange(r);
	}
	}

	/**
	* Scan the contents of the about text
	*/
	protected AboutItem scan(String s) {
	int max = s.length();
	int i = s.indexOf(ATT_HTTP);
	ArrayList linkRanges = new ArrayList();
	ArrayList links = new ArrayList();
	while (i != -1) {
	int start = i;
	// look for the first whitespace character
	boolean found = false;
	i += ATT_HTTP.length();
	while (!found && i < max) {
	found = Character.isWhitespace(s.charAt(i++));
	}
	if (i!=max) i--;
	linkRanges.add(new int[] {start, i - start});
	links.add(s.substring(start, i));
	i = s.indexOf(ATT_HTTP, i);
	}
	return new AboutItem(
	s,
	(int[][])linkRanges.toArray(new int[linkRanges.size()][2]),
	(String[])links.toArray(new String[links.size()]));
	}

	}