android/src/com/android/tools/idea/fileTypes/AndroidIconProvider.java

/*
 * Copyright (C) 2014 The Android Open Source Project
 *
 * 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.android.tools.idea.fileTypes;

import com.android.ide.common.resources.configuration.FolderConfiguration;
import com.android.resources.ResourceFolderType;
import com.android.tools.idea.rendering.FlagManager;
import com.intellij.ide.IconProvider;
import com.intellij.openapi.util.Iconable;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.PsiElement;
import com.intellij.psi.xml.XmlFile;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import javax.swing.*;

import static com.android.SdkConstants.FN_ANDROID_MANIFEST_XML;

public class AndroidIconProvider extends IconProvider {
  @Nullable
  @Override
  public Icon getIcon(@NotNull PsiElement element, @Iconable.IconFlags int flags) {
    if (element instanceof XmlFile) {
      final VirtualFile file = ((XmlFile)element).getVirtualFile();
      if (file != null && !FN_ANDROID_MANIFEST_XML.equals(file.getName())) {
        VirtualFile parent = file.getParent();
        if (parent != null) {
          String parentName = parent.getName();
          int index = parentName.indexOf('-');
          if (index != -1) {
            FolderConfiguration config = FolderConfiguration.getConfigForFolder(parentName);
            if (config != null && config.getLocaleQualifier() != null && ResourceFolderType.getFolderType(parentName) != null) {
              return FlagManager.get().getFlag(config);
            }
          }
        }
      }
    }

    return null;
  }
}