| /* |
| * Copyright 2000-2010 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.psi.impl.smartPointers; |
| |
| import com.intellij.lang.Language; |
| import com.intellij.openapi.editor.Document; |
| import com.intellij.openapi.editor.RangeMarker; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.util.Comparing; |
| import com.intellij.openapi.util.Segment; |
| import com.intellij.openapi.util.TextRange; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiFile; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * User: cdr |
| */ |
| class FileElementInfo implements SmartPointerElementInfo { |
| protected final VirtualFile myVirtualFile; |
| protected final Project myProject; |
| protected final Language myLanguage; |
| |
| public FileElementInfo(@NotNull PsiFile file) { |
| this(file.getProject(), file.getVirtualFile(), file.getLanguage()); |
| } |
| protected FileElementInfo(@NotNull Project project, VirtualFile virtualFile) { |
| this(project, virtualFile, null); |
| } |
| |
| protected FileElementInfo(@NotNull Project project, VirtualFile virtualFile, Language lang) { |
| myVirtualFile = virtualFile; |
| myProject = project; |
| myLanguage = lang; |
| } |
| |
| @Override |
| public Document getDocumentToSynchronize() { |
| return null; |
| } |
| |
| @Override |
| public void fastenBelt(int offset, RangeMarker[] cachedRangeMarker) { |
| } |
| |
| @Override |
| public void unfastenBelt(int offset) { |
| } |
| |
| @Override |
| public PsiElement restoreElement() { |
| return SelfElementInfo.restoreFileFromVirtual(myVirtualFile, myProject, myLanguage); |
| } |
| |
| @Override |
| public PsiFile restoreFile() { |
| PsiElement element = restoreElement(); |
| return element == null ? null : element.getContainingFile(); // can be directory |
| } |
| |
| @Override |
| public int elementHashCode() { |
| return myVirtualFile.hashCode(); |
| } |
| |
| @Override |
| public boolean pointsToTheSameElementAs(@NotNull SmartPointerElementInfo other) { |
| if (other instanceof FileElementInfo) { |
| return Comparing.equal(myVirtualFile, ((FileElementInfo)other).myVirtualFile); |
| } |
| if (other instanceof SelfElementInfo || other instanceof ClsElementInfo) { |
| // optimisation: SelfElementInfo need psi (parsing) for element restoration and apriori could not reference psi file |
| return false; |
| } |
| return Comparing.equal(restoreElement(), other.restoreElement()); |
| } |
| |
| @Override |
| public VirtualFile getVirtualFile() { |
| return myVirtualFile; |
| } |
| |
| @Override |
| public Segment getRange() { |
| return new TextRange(0, (int)myVirtualFile.getLength()); |
| } |
| |
| @NotNull |
| @Override |
| public Project getProject() { |
| return myProject; |
| } |
| |
| @Override |
| public void cleanup() { |
| |
| } |
| } |