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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.lang.properties;
import com.intellij.codeInsight.completion.PrioritizedLookupElement;
import com.intellij.codeInsight.lookup.LookupElement;
import com.intellij.codeInsight.lookup.LookupElementBuilder;
import com.intellij.icons.AllIcons;
import com.intellij.lang.properties.psi.PropertiesFile;
import com.intellij.openapi.roots.ProjectFileIndex;
import com.intellij.openapi.util.text.StringUtil;
import com.intellij.psi.*;
import com.intellij.util.Function;
import com.intellij.util.IncorrectOperationException;
import com.intellij.util.SmartList;
import com.intellij.util.containers.ContainerUtil;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
/**
* @author yole
*/
public class ResourceBundleReference extends PsiReferenceBase<PsiElement> implements PsiPolyVariantReference, BundleNameEvaluator {
private static final Function<PropertiesFile, PsiElement> PROPERTIES_FILE_PSI_ELEMENT_FUNCTION =
new Function<PropertiesFile, PsiElement>() {
@Override
public PsiElement fun(PropertiesFile propertiesFile) {
return propertiesFile.getContainingFile();
}
};
private final String myBundleName;
public ResourceBundleReference(final PsiElement element) {
this(element, false);
}
public ResourceBundleReference(final PsiElement element, boolean soft) {
super(element, soft);
myBundleName = StringUtil.replaceChar(getValue(), '/', '.');
}
@Nullable
public PsiElement resolve() {
ResolveResult[] resolveResults = multiResolve(false);
return resolveResults.length == 1 ? resolveResults[0].getElement() : null;
}
@NotNull
public ResolveResult[] multiResolve(final boolean incompleteCode) {
PropertiesReferenceManager referenceManager = PropertiesReferenceManager.getInstance(myElement.getProject());
List<PropertiesFile> propertiesFiles = referenceManager.findPropertiesFiles(myElement.getResolveScope(), myBundleName, this);
return PsiElementResolveResult.createResults(ContainerUtil.map(propertiesFiles, PROPERTIES_FILE_PSI_ELEMENT_FUNCTION));
}
@NotNull
public String getCanonicalText() {
return myBundleName;
}
public PsiElement handleElementRename(String newElementName) throws IncorrectOperationException {
if (newElementName.endsWith(PropertiesFileType.DOT_DEFAULT_EXTENSION)) {
newElementName = newElementName.substring(0, newElementName.lastIndexOf(PropertiesFileType.DOT_DEFAULT_EXTENSION));
}
final String currentValue = getValue();
final char packageDelimiter = getPackageDelimiter();
final int index = currentValue.lastIndexOf(packageDelimiter);
if (index != -1) {
newElementName = currentValue.substring(0, index) + packageDelimiter + newElementName;
}
return super.handleElementRename(newElementName);
}
private char getPackageDelimiter() {
return StringUtil.indexOf(getValue(), '/') != -1 ? '/' : '.';
}
public PsiElement bindToElement(@NotNull final PsiElement element) throws IncorrectOperationException {
if (!(element instanceof PropertiesFile)) {
throw new IncorrectOperationException();
}
final String name = ResourceBundleManager.getInstance(element.getProject()).getFullName((PropertiesFile)element);
return super.handleElementRename(name);
}
public boolean isReferenceTo(PsiElement element) {
if (element instanceof PropertiesFile) {
final String name = ResourceBundleManager.getInstance(element.getProject()).getFullName((PropertiesFile)element);
if (name != null && name.equals(myBundleName)) {
return true;
}
}
return false;
}
@NotNull
public Object[] getVariants() {
final ProjectFileIndex projectFileIndex = ProjectFileIndex.SERVICE.getInstance(getElement().getProject());
final PropertiesReferenceManager referenceManager = PropertiesReferenceManager.getInstance(getElement().getProject());
final Set<String> bundleNames = new HashSet<String>();
final List<LookupElement> variants = new SmartList<LookupElement>();
PropertiesFileProcessor processor = new PropertiesFileProcessor() {
@Override
public boolean process(String baseName, PropertiesFile propertiesFile) {
if (!bundleNames.add(baseName)) return true;
final LookupElementBuilder builder =
LookupElementBuilder.create(baseName)
.withIcon(AllIcons.Nodes.ResourceBundle);
boolean isInContent = projectFileIndex.isInContent(propertiesFile.getVirtualFile());
variants.add(isInContent ? PrioritizedLookupElement.withPriority(builder, Double.MAX_VALUE) : builder);
return true;
}
};
referenceManager.processPropertiesFiles(myElement.getResolveScope(), processor, this);
return variants.toArray(new LookupElement[variants.size()]);
}
public String evaluateBundleName(final PsiFile psiFile) {
return BundleNameEvaluator.DEFAULT.evaluateBundleName(psiFile);
}
}
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