| /******************************************************************************* |
| * 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.AbstractFrame; |
| |
| public class FrameData extends RequestData { |
| |
| private static final String FRAME_EXTENSION_POINT = "org.eclipse.help.webapp.frame"; //$NON-NLS-1$ |
| private List<AbstractFrame> allFrames; |
| |
| public FrameData(ServletContext context, HttpServletRequest request, |
| HttpServletResponse response) { |
| super(context, request, response); |
| } |
| |
| public AbstractFrame[] getFrames(int location) { |
| IExtensionRegistry registry = Platform.getExtensionRegistry(); |
| IConfigurationElement[] elements = registry |
| .getConfigurationElementsFor(FRAME_EXTENSION_POINT); |
| if (allFrames == null) { |
| allFrames = new ArrayList<AbstractFrame>(); |
| for (IConfigurationElement element : elements) { |
| Object obj = null; |
| try { |
| obj = element.createExecutableExtension("class"); //$NON-NLS-1$ |
| } catch (CoreException e) { |
| HelpWebappPlugin.logError("Create extension failed:[" //$NON-NLS-1$ |
| + FRAME_EXTENSION_POINT + "].", e); //$NON-NLS-1$ |
| } |
| if (obj instanceof AbstractFrame) { |
| allFrames.add((AbstractFrame) obj); |
| } |
| } |
| Collections.sort(allFrames); |
| } |
| |
| List<AbstractFrame> frameList = new ArrayList<AbstractFrame>(); |
| for (AbstractFrame frame : allFrames) { |
| if (frame.isVisible() && frame.getLocation() == location) { |
| frameList.add(frame); |
| } |
| } |
| AbstractFrame[] frames = frameList.toArray(new AbstractFrame[frameList.size()]); |
| return frames; |
| } |
| |
| public String getUrl(AbstractFrame frame) { |
| return request.getContextPath() + frame.getURL(); |
| } |
| |
| public String getContentAreaFrameSizes() { |
| String size = "24,*"; //$NON-NLS-1$ |
| AbstractFrame[] frames = getFrames(AbstractFrame.BELOW_CONTENT); |
| for (AbstractFrame frame : frames) { |
| size += ','; |
| size += frame.getSize(); |
| } |
| return size; |
| } |
| |
| /** |
| * Get the additional frame added to the Main Help Toolbar |
| * Considering of the layout and space of Main Help Toolbar, only one extra frame is supported |
| * |
| * @return AbstractFrame or null if not found |
| */ |
| public AbstractFrame getHelpToolbarFrame() { |
| AbstractFrame[] frames = getFrames(AbstractFrame.HELP_TOOLBAR); |
| if(frames.length > 0) { |
| if(frames.length > 1){ |
| HelpWebappPlugin.logWarning("Only one extra frame is supported to be added to Help Toolbar. The first reterived element will be used."); //$NON-NLS-1$ |
| } |
| return frames[0]; |
| }else { |
| return null; |
| } |
| } |
| |
| /** |
| * Get layout(frame sizes) of Main Help Toolbar |
| */ |
| public String getHelpToolbarFrameSizes() { |
| String size = "*"; //$NON-NLS-1$ |
| AbstractFrame frame = getHelpToolbarFrame(); |
| if(null != frame) { |
| boolean isRTL = UrlUtil.isRTL(request, response); |
| if(isRTL) { |
| size = frame.getSize() + ", " + size; //$NON-NLS-1$ |
| }else { |
| size = size + ", " + frame.getSize(); //$NON-NLS-1$ |
| } |
| } |
| return size; |
| } |
| |
| } |