/* Copyright 2008 Edward Yakop.
*
* 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.qi4j.ide.plugin.idea.common.vfs;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.psi.PsiFileSystemItem;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
/**
* @author edward.yakop@gmail.com
* @since 0.1
*/
public final class VirtualFileUtil
{
/**
* @param element element to process.
* @return The containing virtual file of the element.
* @since 0.1
*/
@Nullable
public static VirtualFile getVirtualFile( @NotNull PsiElement element )
{
if( element instanceof PsiFileSystemItem )
{
PsiFileSystemItem fileSystemItem = (PsiFileSystemItem) element;
return fileSystemItem.getVirtualFile();
}
// If it's not a file system, assume that this is an element within a file
PsiFile containingFile = element.getContainingFile();
if( containingFile == null )
{
return null;
}
VirtualFile virtualFile = containingFile.getVirtualFile();
if( virtualFile != null )
{
return virtualFile;
}
PsiFile originalFile = containingFile.getOriginalFile();
if( originalFile == null )
{
return null;
}
return originalFile.getVirtualFile();
}
private VirtualFileUtil()
{
}
}