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/*
* Copyright 2000-2014 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.source.resolve.reference.impl.providers;
import com.intellij.openapi.module.Module;
import com.intellij.openapi.module.ModuleUtilCore;
import com.intellij.openapi.roots.ModuleRootManager;
import com.intellij.openapi.util.Condition;
import com.intellij.openapi.util.TextRange;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.*;
import com.intellij.util.ProcessingContext;
import com.intellij.util.containers.HashSet;
import org.jetbrains.annotations.NotNull;
import java.util.*;
/**
* @author cdr
*/
public class FilePathReferenceProvider extends PsiReferenceProvider {
private final boolean myEndingSlashNotAllowed;
public FilePathReferenceProvider() {
this(true);
}
public FilePathReferenceProvider(boolean endingSlashNotAllowed) {
myEndingSlashNotAllowed = endingSlashNotAllowed;
}
@NotNull
public PsiReference[] getReferencesByElement(@NotNull PsiElement element, String text, int offset, final boolean soft) {
return getReferencesByElement(element, text, offset, soft, Module.EMPTY_ARRAY);
}
@NotNull
public PsiReference[] getReferencesByElement(@NotNull PsiElement element,
String text,
int offset,
final boolean soft,
@NotNull final Module... forModules) {
return new FileReferenceSet(text, element, offset, this, true, myEndingSlashNotAllowed) {
@Override
protected boolean isSoft() {
return soft;
}
@Override
public boolean isAbsolutePathReference() {
return true;
}
@Override
public boolean couldBeConvertedTo(boolean relative) {
return !relative;
}
@Override
public boolean absoluteUrlNeedsStartSlash() {
final String s = getPathString();
return s != null && !s.isEmpty() && s.charAt(0) == '/';
}
@Override
@NotNull
public Collection<PsiFileSystemItem> computeDefaultContexts() {
Set<PsiFileSystemItem> systemItems = new HashSet<PsiFileSystemItem>();
if (forModules.length > 0) {
for (Module forModule : forModules) {
systemItems.addAll(getRoots(forModule, true));
}
} else {
systemItems.addAll(getRoots(ModuleUtilCore.findModuleForPsiElement(getElement()), true));
}
return systemItems;
}
@Override
public FileReference createFileReference(final TextRange range, final int index, final String text) {
return FilePathReferenceProvider.this.createFileReference(this, range, index, text);
}
@Override
protected Condition<PsiFileSystemItem> getReferenceCompletionFilter() {
return new Condition<PsiFileSystemItem>() {
@Override
public boolean value(final PsiFileSystemItem element) {
return isPsiElementAccepted(element);
}
};
}
}.getAllReferences();
}
@Override
public boolean acceptsTarget(@NotNull PsiElement target) {
return target instanceof PsiFileSystemItem;
}
protected boolean isPsiElementAccepted(PsiElement element) {
return !(element instanceof PsiJavaFile && element instanceof PsiCompiledElement);
}
protected FileReference createFileReference(FileReferenceSet referenceSet, final TextRange range, final int index, final String text) {
return new FileReference(referenceSet, range, index, text);
}
@Override
@NotNull
public PsiReference[] getReferencesByElement(@NotNull PsiElement element, @NotNull final ProcessingContext context) {
String text = null;
if (element instanceof PsiLiteralExpression) {
Object value = ((PsiLiteralExpression)element).getValue();
if (value instanceof String) {
text = (String)value;
}
}
//else if (element instanceof XmlAttributeValue) {
// text = ((XmlAttributeValue)element).getValue();
//}
if (text == null) return PsiReference.EMPTY_ARRAY;
return getReferencesByElement(element, text, 1, true);
}
@NotNull
public static Collection<PsiFileSystemItem> getRoots(final Module thisModule, boolean includingClasses) {
if (thisModule == null) return Collections.emptyList();
ModuleRootManager moduleRootManager = ModuleRootManager.getInstance(thisModule);
List<PsiFileSystemItem> result = new ArrayList<PsiFileSystemItem>();
final PsiManager psiManager = PsiManager.getInstance(thisModule.getProject());
if (includingClasses) {
VirtualFile[] libraryUrls = moduleRootManager.orderEntries().getAllLibrariesAndSdkClassesRoots();
for (VirtualFile file : libraryUrls) {
PsiDirectory directory = psiManager.findDirectory(file);
if (directory != null) {
result.add(directory);
}
}
}
VirtualFile[] sourceRoots = moduleRootManager.orderEntries().recursively().withoutSdk().withoutLibraries().getSourceRoots();
for (VirtualFile root : sourceRoots) {
final PsiDirectory directory = psiManager.findDirectory(root);
if (directory != null) {
final PsiPackage aPackage = JavaDirectoryService.getInstance().getPackage(directory);
if (aPackage != null && aPackage.getName() != null) {
// package prefix
result.add(PackagePrefixFileSystemItemImpl.create(directory));
}
else {
result.add(directory);
}
}
}
return result;
}
}
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