| /******************************************************************************* |
| * Copyright (c) 2006 Sybase, Inc. 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: |
| * Sybase, Inc. - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jst.pagedesigner.converter.jsp; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.IProject; |
| import org.eclipse.core.resources.IWorkspaceRoot; |
| import org.eclipse.core.resources.ResourcesPlugin; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.core.runtime.Path; |
| import org.eclipse.jst.jsf.common.ui.internal.logging.Logger; |
| import org.eclipse.jst.pagedesigner.IHTMLConstants; |
| import org.eclipse.jst.pagedesigner.PDPlugin; |
| import org.eclipse.jst.pagedesigner.converter.AbstractTagConverter; |
| import org.eclipse.jst.pagedesigner.jsp.core.internal.pagevar.DocumentPageVariableAdapter; |
| import org.eclipse.jst.pagedesigner.jsp.core.pagevar.adapter.PageVariableAdapterFactory; |
| import org.eclipse.jst.pagedesigner.preview.PageExpressionContext; |
| import org.eclipse.jst.pagedesigner.preview.PreviewConvertContext; |
| import org.eclipse.wst.sse.core.StructuredModelManager; |
| import org.eclipse.wst.sse.core.internal.util.URIResolver; |
| import org.eclipse.wst.xml.core.internal.provisional.document.IDOMDocument; |
| import org.eclipse.wst.xml.core.internal.provisional.document.IDOMModel; |
| import org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Node; |
| |
| /** |
| * This is the tag converter for preview. |
| * |
| * @author mengbo |
| * @version 1.5 |
| */ |
| public class IncludeTagConverterPreview extends AbstractTagConverter { |
| private static Logger _log = PDPlugin |
| .getLogger(IncludeTagConverterPreview.class); |
| |
| private String _fileAttrName; |
| |
| /** |
| * @param host |
| * @param fileAttrname |
| */ |
| public IncludeTagConverterPreview(Element host, String fileAttrname) { |
| super(host); |
| this._fileAttrName = fileAttrname; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jst.pagedesigner.converter.AbstractTagConverter#doConvertRefresh() |
| */ |
| protected Element doConvertRefresh() { |
| String fileName = getResolvedURL(getHostElement(), this._fileAttrName); |
| if (fileName == null || fileName.length() == 0) { |
| return null; |
| } |
| IPath includedPath = new Path(fileName); |
| includedPath.makeAbsolute(); |
| |
| IFile file = getFile(includedPath); |
| if (file == null) { |
| return null; |
| } |
| return previewFile(file); |
| } |
| |
| /** |
| * @param includedPath |
| * @return the IFile corresponding to the IPath |
| */ |
| public IFile getFile(IPath includedPath) { |
| IWorkspaceRoot workspaceRoot = ResourcesPlugin.getWorkspace().getRoot(); |
| IProject[] projects = workspaceRoot.getProjects(); |
| |
| for (int i = 0, length = projects.length; i < length; i++) { |
| IPath path = projects[i].getLocation(); |
| path = path.makeAbsolute(); |
| if (path != null && path.isPrefixOf(includedPath)) { |
| // -1 so we still have the project path |
| includedPath = includedPath.removeFirstSegments(path |
| .segmentCount() - 1); |
| return ResourcesPlugin.getWorkspace().getRoot().getFile( |
| includedPath); |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * @param file |
| * @return the Element |
| */ |
| public Element previewFile(IFile file) { |
| IDOMModel xmlModel = null; |
| DocumentPageVariableAdapter provider = null; |
| boolean pushedPageVarProvider = false; |
| try { |
| |
| xmlModel = (IDOMModel) StructuredModelManager.getModelManager().getModelForRead( |
| file); |
| if (xmlModel != null) { |
| IDOMDocument doc = xmlModel.getDocument(); |
| |
| // XXX: need to also register page variable adapters. In the |
| // future, this should go to some |
| // SSE system registry mechanism. |
| xmlModel.getFactoryRegistry().addFactory( |
| new PageVariableAdapterFactory()); |
| provider = new DocumentPageVariableAdapter(doc); |
| doc.addAdapter(provider); |
| |
| provider.refresh(); |
| PageExpressionContext.getCurrent() |
| .pushPageVarProvider(provider); |
| |
| Node child = xmlModel.getDocument().getFirstChild(); |
| PreviewConvertContext context = new PreviewConvertContext(this |
| .getDestDocument()); |
| List results = new ArrayList(); |
| while (child != null) { |
| Node node = context.previewConvert(child); |
| if (node != null) { |
| results.add(node); |
| } |
| child = child.getNextSibling(); |
| } |
| |
| if (results.size() == 0) { |
| return null; |
| } else if (results.size() == 1 |
| && results.get(0) instanceof Element) { |
| return (Element) results.get(0); |
| } else { |
| Element ret = createElement(IHTMLConstants.TAG_SPAN); |
| for (int i = 0, n = results.size(); i < n; i++) { |
| ret.appendChild((Node) results.get(i)); |
| } |
| return ret; |
| } |
| } |
| } catch (CoreException e) { |
| _log.error("PreviewUtil.previewFile.CoreException", e); //$NON-NLS-1$ |
| } catch (IOException e) { |
| _log.error("PreviewUtil.previewFile.IOException", e); //$NON-NLS-1$ |
| } catch (Exception ex) { |
| _log.error("PreviewUtil.previewFile.CoreException", ex); //$NON-NLS-1$ |
| } finally { |
| if (pushedPageVarProvider) { |
| PageExpressionContext.getCurrent().popPageVarProvider(provider); |
| } |
| if (xmlModel != null) { |
| xmlModel.releaseFromRead(); |
| } |
| } |
| return null; |
| } |
| |
| static String getResolvedURL(Element element, String attrName) { |
| URIResolver resolver = null; |
| if (element instanceof IDOMNode) { |
| // TODO: the new URI resolver is not available on the IStructuredModel |
| resolver = ((IDOMNode) element).getModel().getResolver(); |
| } |
| if (null == resolver) { |
| return null; |
| } |
| String src = element.getAttribute(attrName); |
| if (src != null && src.length() > 0) { |
| return resolver.getLocationByURI(src); |
| } |
| return null; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jst.pagedesigner.converter.ITagConverter#isMultiLevel() |
| */ |
| public boolean isMultiLevel() { |
| return false; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jst.pagedesigner.css2.style.ITagEditInfo#isWidget() |
| */ |
| public boolean isWidget() { |
| return false; |
| } |
| } |