| /* |
| * 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.psi; |
| |
| import com.intellij.lang.Language; |
| import com.intellij.openapi.editor.Document; |
| import com.intellij.openapi.fileEditor.FileDocumentManager; |
| import com.intellij.openapi.util.UserDataHolderBase; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.psi.impl.PsiManagerEx; |
| import com.intellij.psi.impl.SharedPsiElementImplUtil; |
| import com.intellij.psi.impl.source.DummyHolder; |
| import com.intellij.psi.impl.source.PsiFileImpl; |
| import com.intellij.psi.impl.source.tree.LeafElement; |
| import com.intellij.testFramework.LightVirtualFile; |
| import com.intellij.util.LocalTimeCounter; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Set; |
| |
| public class DummyHolderViewProvider extends UserDataHolderBase implements FileViewProvider{ |
| private DummyHolder myHolder; |
| private final PsiManager myManager; |
| private final long myModificationStamp; |
| private final LightVirtualFile myLightVirtualFile = new LightVirtualFile("DummyHolder"); |
| |
| public DummyHolderViewProvider(@NotNull PsiManager manager) { |
| myManager = manager; |
| myModificationStamp = LocalTimeCounter.currentTime(); |
| } |
| |
| @Override |
| @NotNull |
| public PsiManager getManager() { |
| return myManager; |
| } |
| |
| @Override |
| @Nullable |
| public Document getDocument() { |
| return FileDocumentManager.getInstance().getDocument(getVirtualFile()); |
| } |
| |
| @Override |
| @NotNull |
| public CharSequence getContents() { |
| return myHolder != null ? myHolder.getNode().getText() : ""; |
| } |
| |
| @Override |
| @NotNull |
| public VirtualFile getVirtualFile() { |
| return myLightVirtualFile; |
| } |
| |
| @Override |
| @NotNull |
| public Language getBaseLanguage() { |
| return myHolder.getLanguage(); |
| } |
| |
| @Override |
| @NotNull |
| public Set<Language> getLanguages() { |
| return Collections.singleton(getBaseLanguage()); |
| } |
| |
| @Override |
| public PsiFile getPsi(@NotNull Language target) { |
| ((PsiManagerEx)myManager).getFileManager().setViewProvider(getVirtualFile(), this); |
| return target == getBaseLanguage() ? myHolder : null; |
| } |
| |
| @Override |
| @NotNull |
| public List<PsiFile> getAllFiles() { |
| return Collections.singletonList(getPsi(getBaseLanguage())); |
| } |
| |
| @Override |
| public void beforeContentsSynchronized() {} |
| |
| @Override |
| public void contentsSynchronized() {} |
| |
| @Override |
| public boolean isEventSystemEnabled() { |
| return false; |
| } |
| |
| @Override |
| public boolean isPhysical() { |
| return false; |
| } |
| |
| @Override |
| public long getModificationStamp() { |
| return myModificationStamp; |
| } |
| |
| @Override |
| public boolean supportsIncrementalReparse(@NotNull final Language rootLanguage) { |
| return true; |
| } |
| |
| @Override |
| public void rootChanged(@NotNull PsiFile psiFile) { |
| } |
| |
| public void setDummyHolder(@NotNull DummyHolder dummyHolder) { |
| myHolder = dummyHolder; |
| myLightVirtualFile.setFileType(dummyHolder.getFileType()); |
| } |
| |
| @Override |
| public FileViewProvider clone(){ |
| throw new RuntimeException("Clone is not supported for DummyHolderProviders. Use DummyHolder clone directly."); |
| } |
| |
| @Override |
| public PsiReference findReferenceAt(final int offset) { |
| return SharedPsiElementImplUtil.findReferenceAt(getPsi(getBaseLanguage()), offset); |
| } |
| |
| @Override |
| @Nullable |
| public PsiElement findElementAt(final int offset, @NotNull final Language language) { |
| return language == getBaseLanguage() ? findElementAt(offset) : null; |
| } |
| |
| |
| @Override |
| public PsiElement findElementAt(int offset, @NotNull Class<? extends Language> lang) { |
| if (!lang.isAssignableFrom(getBaseLanguage().getClass())) return null; |
| return findElementAt(offset); |
| } |
| |
| @Override |
| public PsiReference findReferenceAt(final int offsetInElement, @NotNull final Language language) { |
| return language == getBaseLanguage() ? findReferenceAt(offsetInElement) : null; |
| } |
| |
| @NotNull |
| @Override |
| public FileViewProvider createCopy(@NotNull final VirtualFile copy) { |
| throw new RuntimeException("Clone is not supported for DummyHolderProviders. Use DummyHolder clone directly."); |
| } |
| |
| @NotNull |
| @Override |
| public PsiFile getStubBindingRoot() { |
| return getPsi(getBaseLanguage()); |
| } |
| |
| @Override |
| public PsiElement findElementAt(final int offset) { |
| final LeafElement element = ((PsiFileImpl)getPsi(getBaseLanguage())).calcTreeElement().findLeafElementAt(offset); |
| return element != null ? element.getPsi() : null; |
| } |
| } |