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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.editor;
import com.intellij.lang.properties.IProperty;
import com.intellij.lang.properties.ResourceBundle;
import com.intellij.lang.properties.psi.PropertiesFile;
import com.intellij.openapi.actionSystem.CommonDataKeys;
import com.intellij.openapi.actionSystem.DataContext;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.psi.PsiManager;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
/**
* @author Denis Zhdanov
* @since 10/5/11 2:35 PM
*/
public class ResourceBundleUtil {
private ResourceBundleUtil() {
}
/**
* Tries to derive {@link com.intellij.lang.properties.ResourceBundle resource bundle} related to the given context.
*
* @param dataContext target context
* @return {@link com.intellij.lang.properties.ResourceBundle resource bundle} related to the given context if any;
* <code>null</code> otherwise
*/
@Nullable
public static ResourceBundle getResourceBundleFromDataContext(@NotNull DataContext dataContext) {
PsiElement element = CommonDataKeys.PSI_ELEMENT.getData(dataContext);
if (element instanceof IProperty) return null; //rename property
final ResourceBundle[] bundles = ResourceBundle.ARRAY_DATA_KEY.getData(dataContext);
if (bundles != null && bundles.length == 1) return bundles[0];
VirtualFile virtualFile = CommonDataKeys.VIRTUAL_FILE.getData(dataContext);
if (virtualFile == null) {
return null;
}
final Project project = CommonDataKeys.PROJECT.getData(dataContext);
if (virtualFile instanceof ResourceBundleAsVirtualFile && project != null) {
return ((ResourceBundleAsVirtualFile)virtualFile).getResourceBundle(project);
}
if (project != null) {
final PsiFile psiFile = PsiManager.getInstance(project).findFile(virtualFile);
if (psiFile instanceof PropertiesFile) {
return ((PropertiesFile)psiFile).getResourceBundle();
}
}
return null;
}
}
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