/*******************************************************************************
* Copyright (c) 2000, 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
*******************************************************************************/
package org.eclipse.wst.jsdt.internal.ui.text.java;
import java.util.Collection;
import java.util.Set;
import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.TextUtilities;
import org.eclipse.jface.text.contentassist.ICompletionProposalExtension4;
import org.eclipse.wst.jsdt.core.Flags;
import org.eclipse.wst.jsdt.core.IField;
import org.eclipse.wst.jsdt.core.IFunction;
import org.eclipse.wst.jsdt.core.IType;
import org.eclipse.wst.jsdt.core.JavaScriptModelException;
import org.eclipse.wst.jsdt.core.Signature;
import org.eclipse.wst.jsdt.core.dom.rewrite.ImportRewrite;
import org.eclipse.wst.jsdt.core.formatter.CodeFormatter;
import org.eclipse.wst.jsdt.internal.corext.codemanipulation.CodeGenerationSettings;
import org.eclipse.wst.jsdt.internal.corext.codemanipulation.GetterSetterUtil;
import org.eclipse.wst.jsdt.internal.corext.util.CodeFormatterUtil;
import org.eclipse.wst.jsdt.internal.corext.util.Messages;
import org.eclipse.wst.jsdt.internal.corext.util.Strings;
import org.eclipse.wst.jsdt.internal.ui.JavaPluginImages;
import org.eclipse.wst.jsdt.internal.ui.preferences.JavaPreferencesSettings;
public class GetterSetterCompletionProposal extends JavaTypeCompletionProposal implements ICompletionProposalExtension4 {
public static void evaluateProposals(IType type, String prefix, int offset, int length, int relevance, Set suggestedMethods, Collection result) throws CoreException {
if (prefix.length() == 0) {
relevance--;
}
IField[] fields= type.getFields();
IFunction[] methods= type.getFunctions();
for (int i= 0; i < fields.length; i++) {
IField curr= fields[i];
String getterName= GetterSetterUtil.getGetterName(curr, null);
if (getterName.startsWith(prefix) && !hasMethod(methods, getterName) && suggestedMethods.add(getterName)) {
result.add(new GetterSetterCompletionProposal(curr, offset, length, true, relevance));
}
String setterName= GetterSetterUtil.getSetterName(curr, null);
if (setterName.startsWith(prefix) && !hasMethod(methods, setterName) && suggestedMethods.add(setterName)) {
result.add(new GetterSetterCompletionProposal(curr, offset, length, false, relevance));
}
}
}
private static boolean hasMethod(IFunction[] methods, String name) {
for (int i= 0; i < methods.length; i++) {
if (methods[i].getElementName().equals(name)) {
return true;
}
}
return false;
}
private final IField fField;
private final boolean fIsGetter;
public GetterSetterCompletionProposal(IField field, int start, int length, boolean isGetter, int relevance) throws JavaScriptModelException {
super("", field.getJavaScriptUnit(), start, length, JavaPluginImages.get(JavaPluginImages.IMG_MISC_PUBLIC), getDisplayName(field, isGetter), relevance); //$NON-NLS-1$
Assert.isNotNull(field);
fField= field;
fIsGetter= isGetter;
setProposalInfo(new ProposalInfo(field));
}
private static String getDisplayName(IField field, boolean isGetter) throws JavaScriptModelException {
StringBuffer buf= new StringBuffer();
if (isGetter) {
buf.append(GetterSetterUtil.getGetterName(field, null));
buf.append("() "); //$NON-NLS-1$
buf.append(Signature.toString(field.getTypeSignature()));
buf.append(" - "); //$NON-NLS-1$
buf.append(Messages.format(JavaTextMessages.GetterSetterCompletionProposal_getter_label, field.getElementName()));
} else {
buf.append(GetterSetterUtil.getSetterName(field, null));
buf.append('(').append(Signature.toString(field.getTypeSignature())).append(')');
buf.append(" "); //$NON-NLS-1$
buf.append(Signature.toString(Signature.SIG_VOID));
buf.append(" - "); //$NON-NLS-1$
buf.append(Messages.format(JavaTextMessages.GetterSetterCompletionProposal_setter_label, field.getElementName()));
}
return buf.toString();
}
/* (non-Javadoc)
* @see JavaTypeCompletionProposal#updateReplacementString(IDocument, char, int, ImportRewrite)
*/
protected boolean updateReplacementString(IDocument document, char trigger, int offset, ImportRewrite impRewrite) throws CoreException, BadLocationException {
CodeGenerationSettings settings= JavaPreferencesSettings.getCodeGenerationSettings(fField.getJavaScriptProject());
boolean addComments= settings.createComments;
int flags= Flags.AccPublic | (fField.getFlags() & Flags.AccStatic);
String stub;
if (fIsGetter) {
String getterName= GetterSetterUtil.getGetterName(fField, null);
stub= GetterSetterUtil.getGetterStub(fField, getterName, addComments, flags);
} else {
String setterName= GetterSetterUtil.getSetterName(fField, null);
stub= GetterSetterUtil.getSetterStub(fField, setterName, addComments, flags);
}
// use the code formatter
String lineDelim= TextUtilities.getDefaultLineDelimiter(document);
IRegion region= document.getLineInformationOfOffset(getReplacementOffset());
int lineStart= region.getOffset();
int indent= Strings.computeIndentUnits(document.get(lineStart, getReplacementOffset() - lineStart), settings.tabWidth, settings.indentWidth);
String replacement= CodeFormatterUtil.format(CodeFormatter.K_CLASS_BODY_DECLARATIONS, stub, indent, null, lineDelim, fField.getJavaScriptProject());
if (replacement.endsWith(lineDelim)) {
replacement= replacement.substring(0, replacement.length() - lineDelim.length());
}
setReplacementString(Strings.trimLeadingTabsAndSpaces(replacement));
return true;
}
/*
* @see org.eclipse.jface.text.contentassist.ICompletionProposalExtension4#isAutoInsertable()
*/
public boolean isAutoInsertable() {
return false;
}
}