platform/vcs-impl/src/com/intellij/openapi/vcs/update/FileTreeNode.java

/*
 * Copyright 2000-2009 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.openapi.vcs.update;

import com.intellij.openapi.fileTypes.FileTypeManager;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.Pair;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.openapi.vfs.pointers.VirtualFilePointer;
import com.intellij.psi.search.scope.packageSet.NamedScopesHolder;
import com.intellij.psi.search.scope.packageSet.PackageSetBase;
import com.intellij.ui.SimpleTextAttributes;
import com.intellij.util.PlatformIcons;
import org.jetbrains.annotations.NotNull;

import javax.swing.*;
import java.io.File;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;

/**
 * author: lesya
 */
public class FileTreeNode extends FileOrDirectoryTreeNode {
  private static final Collection<VirtualFile> EMPTY_VIRTUAL_FILE_ARRAY = new ArrayList<VirtualFile>();


  public FileTreeNode(@NotNull String path,
                      @NotNull SimpleTextAttributes invalidAttributes,
                      @NotNull Project project,
                      String parentPath) {
    super(path, invalidAttributes, project, parentPath);
  }

  @Override
  public Icon getIcon(boolean expanded) {
    if (myFile.isDirectory()) {
      return PlatformIcons.DIRECTORY_CLOSED_ICON;
    }
    return FileTypeManager.getInstance().getFileTypeByFileName(myFile.getName()).getIcon();
  }

  @Override
  protected boolean acceptFilter(Pair<PackageSetBase, NamedScopesHolder> filter, boolean showOnlyFilteredItems) {
    try {
      VirtualFilePointer filePointer = getFilePointer();
      if (!filePointer.isValid()) {
        return false;
      }
      VirtualFile file = filePointer.getFile();
      if (file != null && file.isValid() && filter.first.contains(file, getProject(), filter.second)) {
        applyFilter(true);
        return true;
      }
    }
    catch (Throwable e) {
      // TODO: catch and ignore exceptions: see to FilePatternPackageSet
      // sometimes for new file DirectoryFileIndex.getContentRootForFile() return random path
    }
    return false;
  }

  @NotNull
  @Override
  public Collection<VirtualFile> getVirtualFiles() {
    VirtualFile virtualFile = getFilePointer().getFile();
    if (virtualFile == null) return EMPTY_VIRTUAL_FILE_ARRAY;
    return Collections.singleton(virtualFile);
  }

  @NotNull
  @Override
  public Collection<File> getFiles() {
    if (getFilePointer().getFile() == null) {
      return Collections.singleton(myFile);
    }
    return EMPTY_FILE_ARRAY;
  }

  @Override
  protected int getItemsCount() {
    return 1;
  }

  @Override
  protected boolean showStatistics() {
    return false;
  }
}