/*******************************************************************************
* Copyright (c) 2009 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
* Zend Technologies
*******************************************************************************/
package org.eclipse.php.internal.core.codeassist.strategies;
import java.util.LinkedList;
import java.util.List;
import org.eclipse.dltk.core.IType;
import org.eclipse.dltk.core.ModelException;
import org.eclipse.dltk.internal.core.ModelElement;
import org.eclipse.dltk.internal.core.SourceRange;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.php.core.codeassist.ICompletionContext;
import org.eclipse.php.core.codeassist.IElementFilter;
import org.eclipse.php.internal.core.PHPCorePlugin;
import org.eclipse.php.internal.core.codeassist.AliasType;
import org.eclipse.php.internal.core.codeassist.CodeAssistUtils;
import org.eclipse.php.internal.core.codeassist.ICompletionReporter;
import org.eclipse.php.internal.core.codeassist.ProposalExtraInfo;
import org.eclipse.php.internal.core.codeassist.contexts.NamespacePHPDocVarStartContext;
import org.eclipse.php.internal.core.compiler.ast.nodes.NamespaceReference;
/**
* This strategy completes namespace classes and interfaces
*
* @author michael
*/
public class NamespaceDocTypesStrategy extends AbstractCompletionStrategy {
public NamespaceDocTypesStrategy(ICompletionContext context,
IElementFilter elementFilter) {
super(context, elementFilter);
}
public NamespaceDocTypesStrategy(ICompletionContext context) {
super(context);
}
public void apply(ICompletionReporter reporter) throws BadLocationException {
ICompletionContext context = getContext();
if (!(context instanceof NamespacePHPDocVarStartContext)) {
return;
}
NamespacePHPDocVarStartContext concreteContext = (NamespacePHPDocVarStartContext) context;
// now we compute type suffix in PHPCompletionProposalCollector
String suffix = "";//$NON-NLS-1$
SourceRange replaceRange = getReplacementRange(concreteContext);
for (IType type : getTypes(concreteContext)) {
reporter.reportType(type, suffix, replaceRange, getExtraInfo());
}
}
public IType[] getTypes(NamespacePHPDocVarStartContext context)
throws BadLocationException {
String prefix = context.getPrefix();
List<IType> result = new LinkedList<IType>();
for (IType ns : context.getNamespaces()) {
try {
for (IType type : ns.getTypes()) {
if (CodeAssistUtils.startsWithIgnoreCase(
type.getElementName(), prefix)) {
result.add(type);
}
}
} catch (ModelException e) {
PHPCorePlugin.log(e);
}
}
for (IType ns : context.getPossibleNamespaces()) {
if (context.getNsPrefix() == null) {
result.add(ns);
} else {
String fullName = ns.getElementName();
String alias = getAlias(ns, context.getNsPrefix());
if (alias == null) {
result.add(ns);
} else {
result.add(new AliasType((ModelElement) ns, fullName, alias));
}
}
}
return (IType[]) result.toArray(new IType[result.size()]);
}
private String getAlias(IType ns, String currentNSName) {
String result = ns.getElementName();
currentNSName = currentNSName + NamespaceReference.NAMESPACE_SEPARATOR;
if (result.startsWith(currentNSName)) {
result = result.substring(currentNSName.length());
} else {
result = null;
}
return result;
}
public SourceRange getReplacementRange(ICompletionContext context)
throws BadLocationException {
SourceRange replacementRange = super.getReplacementRange(context);
if (replacementRange.getLength() > 0) {
return new SourceRange(replacementRange.getOffset(),
replacementRange.getLength() - 1);
}
return replacementRange;
}
protected Object getExtraInfo() {
return ProposalExtraInfo.TYPE_ONLY;
}
}