/*
* Copyright 2003-2013 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 jetbrains.mps.idea.core.navbar;
import com.intellij.ide.navigationToolbar.NavBarModelExtension;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import jetbrains.mps.fileTypes.MPSFileTypeFactory;
import jetbrains.mps.idea.core.psi.impl.MPSPsiModel;
import jetbrains.mps.idea.core.psi.impl.MPSPsiNodeBase;
import jetbrains.mps.idea.core.psi.impl.MPSPsiProvider;
import jetbrains.mps.idea.core.psi.impl.MPSPsiRootNode;
import jetbrains.mps.idea.core.psi.impl.file.FileSourcePsiFile;
import org.jetbrains.mps.openapi.model.SModelReference;
import org.jetbrains.annotations.Nullable;
import java.util.Collection;
import java.util.Collections;
/**
* User: fyodor
* Date: 2/6/13
*/
public class MPSNavBarExtension implements NavBarModelExtension{
@Nullable
@Override
public String getPresentableText(Object object) {
return null;
}
@Nullable
@Override
public PsiElement getParent(PsiElement psiElement) {
if (psiElement instanceof MPSPsiModel) {
VirtualFile virtualFile = ((MPSPsiModel) psiElement).getSourceVirtualFile();
if (!virtualFile.isValid()) return null;
PsiFile file = psiElement.getManager().findFile(virtualFile);
if (file == null) return null;
return file.getParent();
}
if(psiElement instanceof MPSPsiRootNode
&& ((MPSPsiRootNode) psiElement).getVirtualFile() != null
&& ((MPSPsiRootNode) psiElement).getVirtualFile().getFileType().equals(MPSFileTypeFactory.MPS_ROOT_FILE_TYPE)) {
return psiElement.getParent().getParent();
}
if (psiElement instanceof MPSPsiNodeBase) {
return psiElement.getParent();
}
return null;
}
@Nullable
@Override
public PsiElement adjustElement(PsiElement psiElement) {
if (psiElement instanceof FileSourcePsiFile) {
SModelReference modelReference = ((FileSourcePsiFile) psiElement).getModelReference();
return MPSPsiProvider.getInstance(psiElement.getProject()).getPsi(modelReference);
}
return psiElement;
}
@Override
public Collection<VirtualFile> additionalRoots(Project project) {
return Collections.emptyList();
}
}