| /* |
| * Copyright 2000-2009 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 com.intellij.refactoring.util; |
| |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.openapi.editor.Document; |
| import com.intellij.openapi.editor.RangeMarker; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.util.TextRange; |
| import com.intellij.psi.*; |
| import com.intellij.usageView.UsageInfo; |
| import org.jetbrains.annotations.Nullable; |
| |
| public class MoveRenameUsageInfo extends UsageInfo{ |
| private static final Logger LOG = Logger.getInstance("#" + MoveRenameUsageInfo.class.getName()); |
| private SmartPsiElementPointer myReferencedElementPointer = null; |
| private PsiElement myReferencedElement; |
| |
| private PsiReference myReference; |
| private RangeMarker myReferenceRangeMarker = null; |
| |
| public MoveRenameUsageInfo(PsiReference reference, PsiElement referencedElement){ |
| this(reference.getElement(), reference, referencedElement); |
| } |
| |
| public MoveRenameUsageInfo(PsiElement element, PsiReference reference, PsiElement referencedElement){ |
| super(element); |
| init(element, reference, referencedElement); |
| |
| } |
| |
| public MoveRenameUsageInfo(PsiElement element, PsiReference reference, int startOffset, int endOffset, PsiElement referencedElement, boolean nonCodeUsage){ |
| super(element, startOffset, endOffset, nonCodeUsage); |
| init(element, reference, referencedElement); |
| } |
| |
| private void init(final PsiElement element, PsiReference reference, final PsiElement referencedElement) { |
| final Project project = element.getProject(); |
| myReferencedElement = referencedElement; |
| if (referencedElement != null) { |
| myReferencedElementPointer = SmartPointerManager.getInstance(project).createSmartPsiElementPointer(referencedElement); |
| } |
| if (reference == null) reference = element.getReference(); |
| PsiFile containingFile = element.getContainingFile(); |
| if (reference == null) { |
| final TextRange textRange = element.getTextRange(); |
| if (textRange != null) { |
| reference = containingFile.findReferenceAt(textRange.getStartOffset()); |
| } |
| } |
| myReference = reference; |
| if (reference != null) { |
| Document document = PsiDocumentManager.getInstance(project).getDocument(containingFile); |
| if (document != null) { |
| final int elementStart = reference.getElement().getTextRange().getStartOffset(); |
| final TextRange rangeInElement = reference.getRangeInElement(); |
| LOG.assertTrue(elementStart + rangeInElement.getEndOffset() <= document.getTextLength(), reference); |
| myReferenceRangeMarker = document.createRangeMarker(elementStart + rangeInElement.getStartOffset(), |
| elementStart + rangeInElement.getEndOffset()); |
| } |
| myDynamicUsage = reference.resolve() == null; |
| } |
| } |
| |
| @Nullable |
| public PsiElement getUpToDateReferencedElement() { |
| return myReferencedElementPointer == null ? null : myReferencedElementPointer.getElement(); |
| } |
| |
| @Nullable |
| public PsiElement getReferencedElement() { |
| return myReferencedElement; |
| } |
| |
| @Override |
| @Nullable |
| public PsiReference getReference() { |
| if (myReference != null) { |
| final PsiElement element = myReference.getElement(); |
| if (element != null && element.isValid()) return myReference; |
| } |
| |
| if (myReferenceRangeMarker == null) return null; |
| final PsiElement element = getElement(); |
| if (element == null) return null; |
| final int start = myReferenceRangeMarker.getStartOffset() - element.getTextRange().getStartOffset(); |
| final int end = myReferenceRangeMarker.getEndOffset() - element.getTextRange().getStartOffset(); |
| final PsiReference reference = element.findReferenceAt(start); |
| if (reference == null) return null; |
| final TextRange rangeInElement = reference.getRangeInElement(); |
| if (rangeInElement.getStartOffset() != start || rangeInElement.getEndOffset() != end) return null; |
| return reference; |
| } |
| } |