| /******************************************************************************* |
| * Copyright (c) 2005, 2006 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - Initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ui.internal.browser; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.ui.browser.BrowserFactory; |
| import org.eclipse.ui.browser.IWebBrowser; |
| /** |
| * @since 1.0 |
| */ |
| public class BrowserExt implements IBrowserExt { |
| private static final String ATTR_FACTORY_CLASS = "factoryclass"; //$NON-NLS-1$ |
| |
| private IConfigurationElement element; |
| |
| private BrowserFactory delegate; |
| |
| /** |
| * BrowserExt constructor comment. |
| */ |
| public BrowserExt(IConfigurationElement element) { |
| super(); |
| this.element = element; |
| } |
| |
| /** |
| * Returns the id of this browser. |
| * |
| * @return java.lang.String |
| */ |
| public String getId() { |
| return element.getAttribute("id"); //$NON-NLS-1$ |
| } |
| |
| public String getName() { |
| String label = element.getAttribute("name"); //$NON-NLS-1$ |
| if (label == null) |
| return "n/a"; //$NON-NLS-1$ |
| return label; |
| } |
| |
| public String getParameters() { |
| return element.getAttribute("parameters"); //$NON-NLS-1$ |
| } |
| |
| public String getExecutable() { |
| return element.getAttribute("executable"); //$NON-NLS-1$ |
| } |
| |
| public String getOS() { |
| String os = element.getAttribute("os"); //$NON-NLS-1$ |
| if (os == null) |
| os = ""; //$NON-NLS-1$ |
| return os; |
| } |
| |
| public String[] getDefaultLocations() { |
| List list = new ArrayList(); |
| IConfigurationElement[] children = element.getChildren("location"); //$NON-NLS-1$ |
| if (children != null) { |
| int size = children.length; |
| for (int i = 0; i < size; i++) { |
| list.add(children[i].getValue()); |
| } |
| } |
| |
| String[] s = new String[list.size()]; |
| list.toArray(s); |
| return s; |
| } |
| |
| protected BrowserFactory getDelegate() { |
| if (delegate == null) { |
| if (element.getAttribute(ATTR_FACTORY_CLASS) == null |
| || element.getAttribute(ATTR_FACTORY_CLASS).length() == 0) |
| return null; |
| |
| try { |
| delegate = (BrowserFactory) element |
| .createExecutableExtension(ATTR_FACTORY_CLASS); |
| } catch (Exception e) { |
| Trace |
| .trace( |
| Trace.SEVERE, |
| "Could not create delegate" + toString() + ": " + e.getMessage()); //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| } |
| return delegate; |
| } |
| |
| /** |
| * Checks whether the factory can work on the user system. |
| * |
| * @return false if the factory cannot work on this system; for example the |
| * required native browser required by browser adapters that it |
| * creates is not installed |
| */ |
| public boolean isAvailable() { |
| if (delegate == null && (element.getAttribute(ATTR_FACTORY_CLASS) == null |
| || element.getAttribute(ATTR_FACTORY_CLASS).length() == 0)) |
| return true; |
| |
| try { |
| return getDelegate().isAvailable(); |
| } catch (Exception e) { |
| Trace |
| .trace( |
| Trace.SEVERE, |
| "Error calling delegate " + toString() + ": " + e.getMessage()); //$NON-NLS-1$ //$NON-NLS-2$ |
| return false; |
| } |
| } |
| |
| /** |
| * Obtains a new instance of a web browser. |
| * |
| * @return instance of IBrowser |
| */ |
| public IWebBrowser createBrowser(String id, String location, |
| String parameters) { |
| try { |
| return getDelegate().createBrowser(id, location, parameters); |
| } catch (Exception e) { |
| Trace |
| .trace( |
| Trace.SEVERE, |
| "Error calling delegate " + toString() + ": " + e.getMessage()); //$NON-NLS-1$ //$NON-NLS-2$ |
| return null; |
| } |
| } |
| |
| /** |
| * Return a string representation of this object. |
| * |
| * @return java.lang.String |
| */ |
| public String toString() { |
| String s = "BrowserExt: " + getId() + ", " + getName() + ", " + getOS() //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$ |
| + ", " + getExecutable() + ", " + getParameters() + ", "; //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$ |
| String[] locations = getDefaultLocations(); |
| if (locations != null) { |
| int size = locations.length; |
| for (int i = 0; i < size; i++) { |
| s += locations[i] + ";"; //$NON-NLS-1$ |
| } |
| } |
| return s; |
| } |
| } |