| /******************************************************************************* |
| * Copyright (c) 2009, 2015 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.help.internal.webapp.data; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import javax.servlet.ServletContext; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IConfigurationElement; |
| import org.eclipse.core.runtime.IExtensionRegistry; |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.help.internal.webapp.HelpWebappPlugin; |
| import org.eclipse.help.webapp.AbstractButton; |
| |
| public class ButtonData extends RequestData { |
| |
| private static final String BUTTON_EXTENSION_POINT = "org.eclipse.help.webapp.toolbarButton"; //$NON-NLS-1$ |
| private List<AbstractButton> allButtons; |
| |
| public ButtonData(ServletContext context, HttpServletRequest request, |
| HttpServletResponse response) { |
| super(context, request, response); |
| } |
| |
| public AbstractButton[] getButtons() { |
| IExtensionRegistry registry = Platform.getExtensionRegistry(); |
| IConfigurationElement[] elements = registry |
| .getConfigurationElementsFor(BUTTON_EXTENSION_POINT); |
| if (allButtons == null) { |
| allButtons = new ArrayList<AbstractButton>(); |
| for (IConfigurationElement element : elements) { |
| Object obj = null; |
| try { |
| obj = element.createExecutableExtension("class"); //$NON-NLS-1$ |
| } catch (CoreException e) { |
| HelpWebappPlugin.logError("Create extension failed:[" //$NON-NLS-1$ |
| + BUTTON_EXTENSION_POINT + "].", e); //$NON-NLS-1$ |
| } |
| if (obj instanceof AbstractButton) { |
| allButtons.add((AbstractButton) obj); |
| } |
| } |
| Collections.sort(allButtons); |
| } |
| |
| List<AbstractButton> buttonList = new ArrayList<AbstractButton>(); |
| for (AbstractButton button : allButtons) { |
| //if (button.isVisible() && button.getLocation() == location) { |
| buttonList.add(button); |
| //} |
| } |
| AbstractButton[] buttons = buttonList.toArray(new AbstractButton[buttonList.size()]); |
| return buttons; |
| } |
| |
| public String getImageUrl(AbstractButton button) { |
| return request.getContextPath() + button.getImageURL(); |
| } |
| |
| } |