java/java-impl/src/com/intellij/ide/projectView/impl/JavaProjectViewDirectoryHelper.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 /*
  18  * User: anna
  19  * Date: 23-Jan-2008
  20  */
  21 package com.intellij.ide.projectView.impl;
  22
  23 import com.intellij.ide.projectView.ViewSettings;
  24 import com.intellij.ide.projectView.impl.nodes.PackageElement;
  25 import com.intellij.ide.projectView.impl.nodes.PackageUtil;
  26 import com.intellij.ide.projectView.impl.nodes.ProjectViewDirectoryHelper;
  27 import com.intellij.ide.util.treeView.TreeViewUtil;
  28 import com.intellij.openapi.project.Project;
  29 import com.intellij.openapi.roots.FileIndexUtil;
  30 import com.intellij.openapi.roots.impl.DirectoryIndex;
  31 import com.intellij.openapi.vfs.VirtualFile;
  32 import com.intellij.psi.JavaDirectoryService;
  33 import com.intellij.psi.PsiDirectory;
  34 import com.intellij.psi.PsiPackage;
  35 import org.jetbrains.annotations.NotNull;
  36 import org.jetbrains.annotations.Nullable;
  37
  38 import java.util.Arrays;
  39
  40 public class JavaProjectViewDirectoryHelper extends ProjectViewDirectoryHelper {
  41   public JavaProjectViewDirectoryHelper(Project project, DirectoryIndex index) {
  42     super(project, index);
  43   }
  44
  45   @Override
  46   public String getLocationString(@NotNull final PsiDirectory directory) {
  47     PsiPackage aPackage = JavaDirectoryService.getInstance().getPackage(directory);
  48     if (ProjectRootsUtil.isSourceRoot(directory) && aPackage != null) {   //package prefix
  49       return aPackage.getQualifiedName();
  50     }
  51     return super.getLocationString(directory);
  52   }
  53
  54   @Override
  55   public boolean isShowFQName(final ViewSettings settings, final Object parentValue, final PsiDirectory value) {
  56     PsiPackage aPackage;
  57         return value != null
  58                && !(parentValue instanceof Project)
  59                && settings.isFlattenPackages()
  60                && (aPackage = JavaDirectoryService.getInstance().getPackage(value)) != null
  61                && aPackage.getQualifiedName().length() > 0;
  62
  63   }
  64
  65   @Nullable
  66   @Override
  67   public String getNodeName(final ViewSettings settings, final Object parentValue, final PsiDirectory directory) {
  68     PsiPackage aPackage = JavaDirectoryService.getInstance().getPackage(directory);
  69
  70     PsiPackage parentPackage;
  71     if (!ProjectRootsUtil.isSourceRoot(directory) && aPackage != null && aPackage.getQualifiedName().length() > 0 &&
  72                               parentValue instanceof PsiDirectory) {
  73
  74       parentPackage = JavaDirectoryService.getInstance().getPackage(((PsiDirectory)parentValue));
  75     }
  76     else {
  77       parentPackage = null;
  78     }
  79
  80     return PackageUtil.getNodeName(settings, aPackage, parentPackage, directory.getName(), isShowFQName(settings, parentValue, directory));
  81
  82   }
  83
  84   @Override
  85   public boolean skipDirectory(final PsiDirectory directory) {
  86     return JavaDirectoryService.getInstance().getPackage(directory) == null;
  87   }
  88
  89   @Override
  90   public boolean showFileInLibClasses(final VirtualFile vFile) {
  91     return !FileIndexUtil.isJavaSourceFile(getProject(), vFile);
  92   }
  93
  94   @Override
  95   public boolean isEmptyMiddleDirectory(final PsiDirectory directory, final boolean strictlyEmpty) {
  96     return JavaDirectoryService.getInstance().getPackage(directory) != null && TreeViewUtil.isEmptyMiddlePackage(directory, strictlyEmpty);
  97   }
  98
  99   @Override
 100   public boolean supportsFlattenPackages() {
 101     return true;
 102   }
 103
 104   @Override
 105   public boolean supportsHideEmptyMiddlePackages() {
 106     return true;
 107   }
 108
 109   @Override
 110   public boolean canRepresent(final Object element, final PsiDirectory directory) {
 111     if (super.canRepresent(element, directory)) return true;
 112     if (element instanceof PackageElement) {
 113       final PackageElement packageElement = (PackageElement)element;
 114       return Arrays.asList(packageElement.getPackage().getDirectories()).contains(directory);
 115     }
 116     return false;
 117   }
 118 }