/*******************************************************************************
* 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.jface.fieldassist.ContentProposalAdapter;
import org.eclipse.jface.fieldassist.IContentProposal;
import org.eclipse.jface.fieldassist.IContentProposalProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.swt.graphics.Image;
import org.jboss.tools.common.meta.XAttribute;
import org.jboss.tools.common.meta.action.XEntityData;
import org.jboss.tools.common.model.*;
import org.jboss.tools.common.model.ui.attribute.AttributeContentProposalProviderFactory;
import org.jboss.tools.common.model.ui.attribute.IAttributeContentProposalProvider;
import org.jboss.tools.common.model.util.EclipseResourceUtil;
public class DefaultTreeSelectionContentAssistProvider implements IAttributeContentProposalProvider {
XModelObject object;
XAttribute attribute;
DefaultXAttributeTreeContentProvider treeProvider;
public DefaultTreeSelectionContentAssistProvider() {}
public boolean isRelevant(XModelObject object, XAttribute attribute) {
if(object == null) {
//TODO it looks like we need to pass model, if we do not have object
return false;
}
String editor = attribute.getEditor().getName();
return editor != null && editor.startsWith("Tree"); //$NON-NLS-1$
}
void addAttributeValueProposals(List<IContentProposal> 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];
if(text.startsWith(replacementString)) {
// replacementString = "";
}
IContentProposal proposal = AttributeContentProposalProviderFactory.makeContentProposal(replacementString, replacementString, null);
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);
}
public IContentProposalProvider getContentProposalProvider() {
return new ContentProposalProvider();
}
public int getProposalAcceptanceStyle() {
return ContentProposalAdapter.PROPOSAL_REPLACE;
}
public void init(XModelObject object, XEntityData data, XAttribute attribute) {
this.object = object;
this.attribute = attribute;
treeProvider = new DefaultXAttributeTreeContentProvider(attribute, object.getModel(), object);
}
public LabelProvider getCustomLabelProbider() {
return null;
}
public void dispose() {
object = null;
attribute = null;
treeProvider = null;
}
class ContentProposalProvider implements IContentProposalProvider {
public IContentProposal[] getProposals(String contents, int position) {
List<IContentProposal> proposalsList = new ArrayList<IContentProposal>();
addAttributeValueProposals(proposalsList, contents, position);
return proposalsList.toArray(new IContentProposal[0]);
}
}
}