/*******************************************************************************
* Copyright (c) 2007 Exadel, Inc. and 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:
* Exadel, Inc. and Red Hat, Inc. - initial API and implementation
******************************************************************************/
package org.jboss.tools.common.model.ui.attribute.adapter;
import java.util.*;
import org.eclipse.jdt.internal.ui.refactoring.contentassist.*;
import org.eclipse.jface.contentassist.*;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.contentassist.ICompletionProposal;
import org.eclipse.swt.graphics.Image;
import org.eclipse.wst.sse.ui.internal.contentassist.*;
import org.eclipse.wst.xml.ui.internal.contentassist.*;
import org.jboss.tools.common.model.*;
import org.jboss.tools.common.model.util.EclipseResourceUtil;
public class DefaultTreeSelectionContentAssistProcessor extends JavaPackageCompletionProcessor implements ISubjectControlContentAssistProcessor {
DefaultXAttributeTreeContentProvider treeProvider;
public DefaultTreeSelectionContentAssistProcessor() {}
public void setTreeProvider(DefaultXAttributeTreeContentProvider treeProvider) {
this.treeProvider = treeProvider;
}
public ICompletionProposal[] computeCompletionProposals(IContentAssistSubjectControl contentAssistSubjectControl, int documentOffset) {
List<ICompletionProposal> proposals = new ArrayList<ICompletionProposal>();
IDocument document = contentAssistSubjectControl.getDocument();
String text = document.get();
addAttributeValueProposals(proposals, text, documentOffset);
return proposals.toArray(new ICompletionProposal[0]);
}
public void addAttributeValueProposals(List<ICompletionProposal> proposalsList, String text, int offset) {
if(treeProvider == null) return;
XFilteredTree tree = treeProvider.getFilteredTree();
if(tree == null) {
treeProvider.getElements(null);
tree = treeProvider.getFilteredTree();
}
if(tree == null) return;
XModelObject root = tree.getRoot();
if(root == null) return;
String startText = text.substring(0, offset);
Map<String,Image> pathsMap = new TreeMap<String,Image>();
collectPaths(startText, root, tree, pathsMap);
String[] paths = pathsMap.keySet().toArray(new String[0]);
if(paths.length == 1 && text.startsWith(paths[0])) {
pathsMap = new TreeMap<String,Image>();
collectPaths(paths[0], root, tree, pathsMap);
paths = (String[])pathsMap.keySet().toArray(new String[0]);
}
for (int i = 0; i < paths.length; i++) {
String label = paths[i];
String replacementString = paths[i];
int replacementBeginPosition = 0;
int replacementLength = text.length();
int cursorPosition = replacementString.length();
if(text.startsWith(replacementString)) {
replacementString = ""; //$NON-NLS-1$
replacementLength = 0;
}
CustomCompletionProposal proposal = new CustomCompletionProposal(
// autoactivation,
replacementString,
replacementBeginPosition,
replacementLength,
cursorPosition,
pathsMap.get(paths[i]),
label,
null,
null, //contextInfo
XMLRelevanceConstants.R_XML_ATTRIBUTE_VALUE);
proposalsList.add(proposal);
}
}
void collectPaths(String startText, XModelObject object, XFilteredTree tree, Map<String,Image> map) {
String value = tree.getValue(object);
if(value != null && value.startsWith(startText)) {
if(value.length() > 0) {
if(value.equals(startText) && value.endsWith("/")) { //$NON-NLS-1$
//skip this value
} else {
map.put(value, EclipseResourceUtil.getImage(object));
}
}
if(value.length() > startText.length()) return;
} else if(value != null && !startText.startsWith(value)) {
return;
}
XModelObject[] cs = tree.getChildren(object);
for (int i = 0; i < cs.length; i++) collectPaths(startText, cs[i], tree, map);
}
}