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/*
* Copyright 2000-2014 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jetbrains.plugins.groovy.editor;
import com.intellij.codeInsight.editorActions.CopyPasteReferenceProcessor;
import com.intellij.codeInsight.editorActions.ReferenceData;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.editor.RangeMarker;
import com.intellij.openapi.util.TextRange;
import com.intellij.psi.*;
import com.intellij.util.IncorrectOperationException;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.plugins.groovy.lang.psi.GrReferenceElement;
import org.jetbrains.plugins.groovy.lang.psi.api.GroovyResolveResult;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrReferenceExpression;
import org.jetbrains.plugins.groovy.lang.psi.api.toplevel.imports.GrImportStatement;
import org.jetbrains.plugins.groovy.lang.psi.util.PsiUtil;
import java.util.ArrayList;
/**
* @author peter
*/
public class GroovyReferenceCopyPasteProcessor extends CopyPasteReferenceProcessor<GrReferenceElement> {
private static final Logger LOG = Logger.getInstance(GroovyReferenceCopyPasteProcessor.class);
@Override
protected void addReferenceData(PsiFile file, int startOffset, PsiElement element, ArrayList<ReferenceData> to) {
if (element instanceof GrReferenceElement) {
if (((GrReferenceElement)element).getQualifier() == null) {
final GroovyResolveResult resolveResult = ((GrReferenceElement)element).advancedResolve();
final PsiElement refElement = resolveResult.getElement();
if (refElement != null) {
if (refElement instanceof PsiClass) {
if (refElement.getContainingFile() != element.getContainingFile()) {
final String qName = ((PsiClass)refElement).getQualifiedName();
if (qName != null) {
addReferenceData(element, to, startOffset, qName, null);
}
}
}
else if (resolveResult.getCurrentFileResolveContext() instanceof GrImportStatement &&
((GrImportStatement)resolveResult.getCurrentFileResolveContext()).isStatic()) {
final String classQName = ((PsiMember)refElement).getContainingClass().getQualifiedName();
final String name = ((PsiNamedElement)refElement).getName();
if (classQName != null && name != null) {
addReferenceData(element, to, startOffset, classQName, name);
}
}
}
}
}
}
@Override
protected GrReferenceElement[] findReferencesToRestore(PsiFile file,
RangeMarker bounds,
ReferenceData[] referenceData) {
PsiManager manager = file.getManager();
final JavaPsiFacade facade = JavaPsiFacade.getInstance(manager.getProject());
PsiResolveHelper helper = facade.getResolveHelper();
GrReferenceElement[] refs = new GrReferenceElement[referenceData.length];
for (int i = 0; i < referenceData.length; i++) {
ReferenceData data = referenceData[i];
PsiClass refClass = facade.findClass(data.qClassName, file.getResolveScope());
if (refClass == null) continue;
int startOffset = data.startOffset + bounds.getStartOffset();
int endOffset = data.endOffset + bounds.getStartOffset();
PsiElement element = file.findElementAt(startOffset);
if (element != null && element.getParent() instanceof GrReferenceElement && !PsiUtil.isThisOrSuperRef(element.getParent())) {
GrReferenceElement reference = (GrReferenceElement)element.getParent();
TextRange range = reference.getTextRange();
if (range.getStartOffset() == startOffset && range.getEndOffset() == endOffset) {
if (data.staticMemberName == null) {
PsiClass refClass1 = helper.resolveReferencedClass(reference.getText(), reference);
if (refClass1 == null || !manager.areElementsEquivalent(refClass, refClass1)) {
refs[i] = reference;
}
}
else {
if (reference instanceof GrReferenceExpression) {
PsiElement referent = reference.resolve();
if (!(referent instanceof PsiNamedElement)
|| !data.staticMemberName.equals(((PsiNamedElement)referent).getName())
|| !(referent instanceof PsiMember)
|| ((PsiMember)referent).getContainingClass() == null
|| !data.qClassName.equals(((PsiMember)referent).getContainingClass().getQualifiedName())) {
refs[i] = reference;
}
}
}
}
}
}
return refs;
}
@Override
protected void restoreReferences(ReferenceData[] referenceData,
GrReferenceElement[] refs) {
for (int i = 0; i < refs.length; i++) {
GrReferenceElement reference = refs[i];
if (reference == null) continue;
try {
PsiManager manager = reference.getManager();
ReferenceData refData = referenceData[i];
PsiClass refClass = JavaPsiFacade.getInstance(manager.getProject()).findClass(refData.qClassName, reference.getResolveScope());
if (refClass != null) {
if (refData.staticMemberName == null) {
reference.bindToElement(refClass);
}
else {
LOG.assertTrue(reference instanceof GrReferenceExpression);
PsiMember member = findMember(refData, refClass);
if (member != null) {
((GrReferenceExpression)reference).bindToElementViaStaticImport(member);
}
}
}
}
catch (IncorrectOperationException e) {
LOG.error(e);
}
}
}
@Nullable
private static PsiMember findMember(ReferenceData refData, PsiClass refClass) {
PsiField field = refClass.findFieldByName(refData.staticMemberName, true);
if (field != null) {
return field;
}
PsiMethod[] methods = refClass.findMethodsByName(refData.staticMemberName, true);
if (methods.length != 0) {
return methods[0];
}
return null;
}
}
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