/******************************************************************************* * Copyright (c) 2007-2012 Red Hat, Inc. * Distributed under license by Red Hat, Inc. All rights reserved. * This program is 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: * Red Hat, Inc. - initial API and implementation ******************************************************************************/ package org.jboss.tools.jsf.text.ext.hyperlink; import org.eclipse.jface.text.BadLocationException; import org.eclipse.jface.text.IDocument; import org.jboss.tools.common.text.ext.hyperlink.AbstractHyperlinkPartitioner; import org.jboss.tools.common.text.ext.hyperlink.HyperlinkRegion; import org.jboss.tools.common.text.ext.hyperlink.IHyperlinkRegion; import org.jboss.tools.common.text.ext.util.StructuredModelWrapper; import org.jboss.tools.common.text.ext.util.Utils; import org.jboss.tools.jsf.text.ext.JSFExtensionsPlugin; import org.jboss.tools.jst.web.ui.internal.text.ext.hyperlink.jsp.JSPRootHyperlinkPartitioner; import org.w3c.dom.Attr; import org.w3c.dom.Document; import org.w3c.dom.Node; /** * @author Jeremy */ public class JSPForIDHyperlinkPartitioner extends AbstractHyperlinkPartitioner /*implements IHyperlinkPartitionRecognizer */{ public static final String JSP_FOR_ID_PARTITION = "org.jboss.tools.common.text.ext.jsp.JSP_FOR_ID"; //$NON-NLS-1$ /** * @see com.ibm.sse.editor.hyperlink.AbstractHyperlinkPartitioner#parse(org.eclipse.jface.text.IDocument, com.ibm.sse.editor.extensions.hyperlink.IHyperlinkRegion) */ protected IHyperlinkRegion parse(IDocument document, int offset, IHyperlinkRegion superRegion) { StructuredModelWrapper smw = new StructuredModelWrapper(); smw.init(document); try { Document xmlDocument = smw.getDocument(); if (xmlDocument == null) return null; Utils.findNodeForOffset(xmlDocument, offset); IHyperlinkRegion r = getRegion(document, offset); if (r == null) return null; String axis = getAxis(document, offset); String contentType = superRegion.getContentType(); String type = JSP_FOR_ID_PARTITION; return new HyperlinkRegion(r.getOffset(), r.getLength(), axis, contentType, type); } finally { smw.dispose(); } } protected String getAxis(IDocument document, int offset) { return JSPRootHyperlinkPartitioner.computeAxis(document, offset) + "/"; //$NON-NLS-1$ } public static IHyperlinkRegion getRegion(IDocument document, final int offset) { StructuredModelWrapper smw = new StructuredModelWrapper(); smw.init(document); try { Document xmlDocument = smw.getDocument(); if (xmlDocument == null) return null; Node n = Utils.findNodeForOffset(xmlDocument, offset); if (n == null || !(n instanceof Attr)) return null; int start = Utils.getValueStart(n); int end = Utils.getValueEnd(n); if (start > offset) return null; String attrText = document.get(start, end - start); StringBuffer sb = new StringBuffer(attrText); //find start and end of path property int bStart = 0; int bEnd = attrText.length() - 1; while (bStart < bEnd && (sb.charAt(bStart) == '\'' || sb.charAt(bStart) == '\"' || Character.isWhitespace(sb.charAt(bStart)))) { bStart++; } while (bEnd > bStart && (sb.charAt(bEnd) == '\'' || sb.charAt(bEnd) == '\"' || Character.isWhitespace(sb.charAt(bEnd)))) { bEnd--; } bEnd++; int propStart = bStart + start; int propLength = bEnd - bStart; if (propStart > offset || propStart + propLength < offset) return null; // Find an ID (suppose that there may be a list of commas-separated IDs) int bIdStart = offset; int bIdEnd = offset; //find start of bean property while (bIdStart >= propStart) { if (!Character.isJavaIdentifierPart(sb.charAt(bIdStart - start)) && sb.charAt(bIdStart - start) != ' ') { bIdStart++; break; } if (bIdStart == 0) break; bIdStart--; } // find end of bean property while (bIdEnd < propStart + propLength) { if (!Character.isJavaIdentifierPart(sb.charAt(bIdEnd - start)) && sb.charAt(bIdEnd - start) != ' ') break; bIdEnd++; } // Skip leading spaces while (bIdStart < bIdEnd) { if (Character.isJavaIdentifierPart(sb.charAt(bIdStart - start))) { break; } bIdStart++; } // Skip trailing spaces while (bIdEnd > bIdStart) { if (Character.isJavaIdentifierPart(sb.charAt(bIdEnd - 1 - start))) { break; } bIdEnd--; } int idStart = bIdStart; int idLength = bIdEnd - bIdStart; if (idStart > offset || idStart + idLength < offset) return null; return new HyperlinkRegion(idStart, idLength, null, null, null); } catch (BadLocationException x) { JSFExtensionsPlugin.log("", x); //$NON-NLS-1$ return null; } finally { smw.dispose(); } } }