platform/lang-impl/src/com/intellij/ide/todo/ScopeBasedTodosTreeStructure.java

/*
 * Copyright 2000-2012 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.
 */

/*
 * User: anna
 * Date: 27-Jul-2007
 */
package com.intellij.ide.todo;

import com.intellij.ide.todo.nodes.ToDoRootNode;
import com.intellij.ide.util.scopeChooser.ScopeChooserCombo;
import com.intellij.ide.util.treeView.AbstractTreeNode;
import com.intellij.openapi.project.Project;
import com.intellij.psi.PsiFile;
import com.intellij.psi.search.GlobalSearchScope;
import com.intellij.psi.search.SearchScope;

public class ScopeBasedTodosTreeStructure extends TodoTreeStructure {
  private final ScopeChooserCombo myScopes;

  public ScopeBasedTodosTreeStructure(Project project, ScopeChooserCombo scopes) {
    super(project);
    myScopes = scopes;
  }

  @Override
  public boolean accept(final PsiFile psiFile) {
    if (!psiFile.isValid()) return false;
    boolean isAffected = false;
    SearchScope scope = myScopes.getSelectedScope();
    if (scope instanceof GlobalSearchScope) {
      isAffected = ((GlobalSearchScope)scope).contains(psiFile.getVirtualFile());
    }
    return isAffected && (myTodoFilter != null && myTodoFilter.accept(mySearchHelper, psiFile) ||
                          (myTodoFilter == null && mySearchHelper.getTodoItemsCount(psiFile) > 0));
  }

  @Override
  public boolean getIsPackagesShown() {
    return myArePackagesShown;
  }

  @Override
  Object getFirstSelectableElement() {
    return ((ToDoRootNode)myRootElement).getSummaryNode();
  }

  @Override
  protected AbstractTreeNode createRootElement() {
    return new ToDoRootNode(myProject, new Object(), myBuilder, mySummaryElement);
  }
}