platform/lang-api/src/com/intellij/ide/util/TreeFileChooser.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.ide.util;

import com.intellij.psi.PsiFile;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

/**
 * Shows dialog with two tabs: Project View-like tree and Goto symbol-like list with quick search capability
 * Allows to quickly locate and choose PsiFile among all files inside project
 * (optionally filtered based on file type or general file filter(see PsiFileFilter))
 * @see TreeFileChooserFactory#createFileChooser(String, com.intellij.psi.PsiFile, com.intellij.openapi.fileTypes.FileType, com.intellij.ide.util.TreeFileChooser.PsiFileFilter)
 * @see PsiFileFilter
 */
public interface TreeFileChooser {
  /**
   * @return null when no files were selected or dialog has been canceled
   */
  @Nullable PsiFile getSelectedFile();

  /**
   * @param file to be selected in tree view tab of this dialog
   */
  void selectFile(@NotNull PsiFile file);

  void showDialog();

  interface PsiFileFilter {
    boolean accept(PsiFile file);
  }
}