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/*******************************************************************************
* 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.help.internal.browser;
import java.util.*;
import org.eclipse.core.boot.*;
import org.eclipse.help.browser.*;
import org.eclipse.help.internal.*;
import org.eclipse.help.internal.util.*;
/**
*
*/
public class CustomBrowser implements IBrowser {
public static final String CUSTOM_BROWSER_PATH_KEY = "custom_browser_path";
/**
* @see org.eclipse.help.ui.browser.IBrowser#close()
*/
public void close() {
}
/**
* @see org.eclipse.help.ui.browser.IBrowser#isCloseSupported()
*/
public boolean isCloseSupported() {
return false;
}
/**
* @see org.eclipse.help.ui.browser.IBrowser#displayURL(java.lang.String)
*/
public void displayURL(String url) throws Exception {
String path =
HelpBasePlugin.getDefault().getPluginPreferences().getString(
CustomBrowser.CUSTOM_BROWSER_PATH_KEY);
String[] command = prepareCommand(path, url);
try {
Process pr = Runtime.getRuntime().exec(command);
Thread outConsumer = new StreamConsumer(pr.getInputStream());
outConsumer.setName("Custom browser adapter output reader");
outConsumer.start();
Thread errConsumer = new StreamConsumer(pr.getErrorStream());
errConsumer.setName("Custom browser adapter error reader");
errConsumer.start();
} catch (Exception e) {
HelpBasePlugin.logError(
Resources.getString("CustomBrowser.errorLaunching", url, path),
e);
throw new Exception(
Resources.getString("CustomBrowser.errorLaunching", url, path));
}
}
/**
* @see org.eclipse.help.ui.browser.IBrowser#isSetLocationSupported()
*/
public boolean isSetLocationSupported() {
return false;
}
/**
* @see org.eclipse.help.ui.browser.IBrowser#isSetSizeSupported()
*/
public boolean isSetSizeSupported() {
return false;
}
/**
* @see org.eclipse.help.ui.browser.IBrowser#setLocation(int, int)
*/
public void setLocation(int x, int y) {
}
/**
* @see org.eclipse.help.ui.browser.IBrowser#setSize(int, int)
*/
public void setSize(int width, int height) {
}
/**
* Creates the final command to launch.
* @param path
* @param url
* @return String[]
*/
private String[] prepareCommand(String path, String url) {
ArrayList tokenList = new ArrayList();
//Divide along quotation marks
StringTokenizer qTokenizer =
new StringTokenizer(path.trim(), "\"", true);
boolean withinQuotation = false;
String quotedString = "";
while (qTokenizer.hasMoreTokens()) {
String curToken = qTokenizer.nextToken();
if (curToken.equals("\"")) {
if (withinQuotation) {
if (BootLoader
.OS_WIN32
.equalsIgnoreCase(BootLoader.getOS())) {
// need to quote URLs on Windows
tokenList.add("\"" + quotedString + "\"");
} else {
// qotes prevent launching on Unix 35673
tokenList.add(quotedString);
}
} else {
quotedString = "";
}
withinQuotation = !withinQuotation;
continue;
} else if (withinQuotation) {
quotedString = curToken;
continue;
} else {
//divide unquoted strings along white space
StringTokenizer parser = new StringTokenizer(curToken.trim());
while (parser.hasMoreTokens()) {
tokenList.add(parser.nextToken());
}
}
}
// substitute %1 by url
boolean substituted = false;
for (int i = 0; i < tokenList.size(); i++) {
String token = (String) tokenList.get(i);
if ("%1".equals(token)) {
tokenList.set(i, url);
substituted = true;
} else if ("\"%1\"".equals(token)) {
tokenList.set(i, "\"" + url + "\"");
substituted = true;
}
}
// add the url if not substituted already
if (!substituted)
tokenList.add(url);
String[] command = new String[tokenList.size()];
tokenList.toArray(command);
return command;
}
}
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