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/*******************************************************************************
* Copyright (c) 2005, 2006 committers of openArchitectureWare 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:
* committers of openArchitectureWare - initial API and implementation
*******************************************************************************/
package org.eclipse.xtend.shared.ui.expression.editor.codeassist;
import java.util.List;
import java.util.Set;
import org.eclipse.internal.xtend.expression.codeassist.ProposalFactory;
import org.eclipse.internal.xtend.xtend.ast.Extension;
import org.eclipse.jface.text.contentassist.CompletionProposal;
import org.eclipse.swt.graphics.Image;
import org.eclipse.xpand2.XpandUtil;
import org.eclipse.xtend.expression.TypeNameUtil;
import org.eclipse.xtend.shared.ui.expression.editor.EditorImages;
import org.eclipse.xtend.typesystem.Operation;
import org.eclipse.xtend.typesystem.ParameterizedType;
import org.eclipse.xtend.typesystem.Property;
import org.eclipse.xtend.typesystem.StaticProperty;
import org.eclipse.xtend.typesystem.Type;
public class ProposalFactoryEclipseImpl implements ProposalFactory {
public int offset;
public ProposalFactoryEclipseImpl(final int offset) {
this.offset = offset;
}
public Object createCollectionSpecificOperationProposal(final String insertString, final String displayString,
final String prefix, final int cursor, final int marked) {
final String displayStr = displayString;
final String insertStr = insertString;
final Image img = EditorImages.getImage(EditorImages.OPERATION);
return new TextSelectingProposal(insertStr, offset - prefix.length(), prefix.length(), cursor, marked, img,
displayStr, null, null);
}
public Object createPropertyProposal(final Property p, final String prefix, final boolean onOperation) {
final String returnType = computeReturnType(p.getReturnType(), onOperation);
final String displayStr = p.getName() + " " + returnType + " - "
+ TypeNameUtil.getSimpleName(p.getOwner().getName());
final String insertStr = p.getName();
final Image img = EditorImages.getImage(EditorImages.PROPERTY);
return new CompletionProposal(insertStr, offset - prefix.length(), prefix.length(), insertStr.length(), img,
displayStr, null, null);
}
/**
* @see ProposalFactory#createStaticPropertyProposal(StaticProperty, String,
* boolean)
*/
public Object createStaticPropertyProposal(final StaticProperty p, final String prefix, final boolean onOperation) {
final String returnType = computeReturnType(p.getReturnType(), onOperation);
final String displayStr = p.getName() + " " + returnType + " - "
+ TypeNameUtil.getSimpleName(p.getOwner().getName());
final String insertStr = p.getName();
final Image img = EditorImages.getImage(EditorImages.STATICPROPERTY);
return new CompletionProposal(insertStr, offset - prefix.length(), prefix.length(), insertStr.length(), img,
displayStr, null, null);
}
private String computeReturnType(Type returnType, final boolean onOperation) {
if (returnType == null)
return "unknown";
if (onOperation) {
if (returnType instanceof ParameterizedType) {
returnType = ((ParameterizedType) returnType).getInnerType();
}
return "List[" + XpandUtil.getLastSegment(returnType.getName()) + "]";
}
return TypeNameUtil.getSimpleName(returnType.getName());
}
public Object createOperationProposal(final Operation p, final String prefix, final boolean onOperation) {
final String returnType = computeReturnType(p.getReturnType(), onOperation);
final String displayStr = p.getName() + toParamString(p.getParameterTypes()) + " " + returnType + " - "
+ TypeNameUtil.getSimpleName(p.getOwner().getName());
final String insertStr = p.getName() + "()";
int x = insertStr.length();
if (p.getParameterTypes().size() > 0) {
x--;
}
final Image img = EditorImages.getImage(EditorImages.OPERATION);
return new CompletionProposal(insertStr, offset - prefix.length(), prefix.length(), x, img, displayStr, null,
null);
}
public Object createExtensionProposal(final Extension p, final String prefix) {
final String displayStr = p.getName() + toParamString(p, false);
final String insertStr = p.getName() + "()";
int x = insertStr.length();
if (p.getFormalParameters().size() > 0) {
x--;
}
final Image img = EditorImages.getImage(EditorImages.EXTENSION);
return new CompletionProposal(insertStr, offset - prefix.length(), prefix.length(), x, img, displayStr, null,
null);
}
public Object createExtensionOnMemberPositionProposal(final Extension p, final String prefix,
final boolean onOperation) {
final String displayStr = p.getName() + toParamString(p, true) + " - "
+ (p.getFormalParameters().get(0)).getType();
final String insertStr = p.getName() + "()";
int x = insertStr.length();
if (p.getFormalParameters().size() > 1) {
x--;
}
final Image img = EditorImages.getImage(EditorImages.EXTENSION);
return new CompletionProposal(insertStr, offset - prefix.length(), prefix.length(), x, img, displayStr, null,
null);
}
private String toParamString(final List<Type> parameterTypes) {
final StringBuffer b = new StringBuffer("(");
for (int i = 0, x = parameterTypes.size(); i < x; i++) {
b.append(TypeNameUtil.getSimpleName(parameterTypes.get(i).getName()));
if (i + 1 < x) {
b.append(",");
}
}
b.append(")");
return b.toString();
}
private String toParamString(final Extension p, final boolean member) {
final StringBuffer b = new StringBuffer("(");
int i = member ? 1 : 0;
for (final int x = p.getFormalParameters().size(); i < x; i++) {
b.append((p.getFormalParameters().get(i)).toString());
if (i + 1 < x) {
b.append(",");
}
}
b.append(")");
return b.toString();
}
public Object createVariableProposal(final String name, final Type t, final String prefix) {
final String displayStr = name + " " + computeReturnType(t, false);
final String insertStr = name;
final Image img = EditorImages.getImage(EditorImages.VARIABLE);
return new CompletionProposal(insertStr, offset - prefix.length(), prefix.length(), insertStr.length(), img,
displayStr, null, null);
}
public Object createTypeProposal(final String insertString, final Type type, final String prefix) {
String displayStr = TypeNameUtil.getSimpleName(type.getName());
final String packName = TypeNameUtil.withoutLastSegment(type.getName());
if (packName != null) {
displayStr += " - " + packName;
}
final String insertStr = insertString;
final Image img = EditorImages.getImage(EditorImages.TYPE);
return new CompletionProposal(insertStr, offset - prefix.length(), prefix.length(), insertStr.length(), img,
displayStr, null, null);
}
public Object createExtensionImportProposal(final String insertStr, final String displayStr, final String prefix,
final int cursor, final int marked) {
final Image img = EditorImages.getImage(EditorImages.EXT_IMPORT);
return new CompletionProposal(insertStr, offset - prefix.length(), prefix.length(), insertStr.length(), img,
displayStr, null, null);
}
public Object createNamespaceProposal(final String insertStr, final String displayStr, final String prefix) {
final Image img = EditorImages.getImage(EditorImages.PACKAGE);
return new CompletionProposal(insertStr, offset - prefix.length(), prefix.length(), insertStr.length(), img,
displayStr, null, null);
}
public Object createDefinitionProposal(final String insertStr, final String displayStr, final String prefix) {
final Image img = EditorImages.getImage(EditorImages.XPAND_DEFINE);
return new CompletionProposal(insertStr, offset - prefix.length(), prefix.length(), insertStr.length(), img,
displayStr, null, null);
}
public Object createStatementProposal(final String insertStr, final String displayStr, final String prefix,
final int cursor, final int marked) {
final Image img = EditorImages.getImage(EditorImages.EXT_IMPORT);
return new CompletionProposal(insertStr, offset - prefix.length(), prefix.length(), insertStr.length(), img,
displayStr, null, null);
}
public Object createStatementProposal(final String insertString, final String displayString, final String prefix) {
throw new UnsupportedOperationException();
}
public Object createKeywordProposal(final String insertString, final String displayString, final String prefix) {
throw new UnsupportedOperationException();
}
public boolean isDuplicate(Set<String> nameCache, Object proposal) {
if (nameCache == null || proposal == null)
throw new IllegalArgumentException();
CompletionProposal p = castToProposal(proposal);
if (p != null) {
if (nameCache.contains(p.getDisplayString()))
return true;
else
return false;
}
return true;
}
public void addToCache(Set<String> nameCache, Object proposal) {
CompletionProposal p = castToProposal(proposal);
if (p != null) {
nameCache.add(p.getDisplayString());
}
}
private CompletionProposal castToProposal(Object obj) {
if (obj instanceof CompletionProposal)
return (CompletionProposal) obj;
return null;
}
}
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