| /* |
| * Copyright 2000-2014 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.codeInsight.actions; |
| |
| import com.intellij.openapi.module.Module; |
| import com.intellij.openapi.module.ModuleManager; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.roots.ModuleRootManager; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.psi.PsiDirectory; |
| import com.intellij.psi.PsiFile; |
| import com.intellij.psi.PsiManager; |
| import com.intellij.util.containers.ContainerUtil; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.*; |
| |
| public class FileTreeIterator { |
| private Queue<PsiFile> myCurrentFiles = new LinkedList<PsiFile>(); |
| private Queue<PsiDirectory> myCurrentDirectories = new LinkedList<PsiDirectory>(); |
| |
| public FileTreeIterator(@NotNull List<PsiFile> files) { |
| myCurrentFiles.addAll(files); |
| } |
| |
| public FileTreeIterator(@NotNull Module module) { |
| myCurrentDirectories.addAll(collectModuleDirectories(module)); |
| expandDirectoriesUntilFilesNotEmpty(); |
| } |
| |
| public FileTreeIterator(@NotNull Project project) { |
| myCurrentDirectories.addAll(collectProjectDirectories(project)); |
| expandDirectoriesUntilFilesNotEmpty(); |
| } |
| |
| @NotNull |
| public static List<PsiDirectory> collectProjectDirectories(@NotNull Project project) { |
| List<PsiDirectory> directories = ContainerUtil.newArrayList(); |
| |
| Module[] modules = ModuleManager.getInstance(project).getModules(); |
| for (Module module : modules) { |
| directories.addAll(collectModuleDirectories(module)); |
| } |
| |
| return directories; |
| } |
| |
| public FileTreeIterator(@NotNull PsiDirectory directory) { |
| myCurrentDirectories.add(directory); |
| expandDirectoriesUntilFilesNotEmpty(); |
| } |
| |
| public FileTreeIterator(@NotNull FileTreeIterator fileTreeIterator) { |
| myCurrentFiles = new LinkedList<PsiFile>(fileTreeIterator.myCurrentFiles); |
| myCurrentDirectories = new LinkedList<PsiDirectory>(fileTreeIterator.myCurrentDirectories); |
| } |
| |
| @NotNull |
| public PsiFile next() { |
| if (myCurrentFiles.isEmpty()) { |
| throw new NoSuchElementException(); |
| } |
| PsiFile current = myCurrentFiles.poll(); |
| expandDirectoriesUntilFilesNotEmpty(); |
| return current; |
| } |
| |
| public boolean hasNext() { |
| return !myCurrentFiles.isEmpty(); |
| } |
| |
| private void expandDirectoriesUntilFilesNotEmpty() { |
| while (myCurrentFiles.isEmpty() && !myCurrentDirectories.isEmpty()) { |
| PsiDirectory dir = myCurrentDirectories.poll(); |
| expandDirectory(dir); |
| } |
| } |
| |
| private void expandDirectory(@NotNull PsiDirectory dir) { |
| Collections.addAll(myCurrentFiles, dir.getFiles()); |
| Collections.addAll(myCurrentDirectories, dir.getSubdirectories()); |
| } |
| |
| @NotNull |
| public static List<PsiDirectory> collectModuleDirectories(Module module) { |
| List<PsiDirectory> dirs = ContainerUtil.newArrayList(); |
| |
| VirtualFile[] contentRoots = ModuleRootManager.getInstance(module).getContentRoots(); |
| for (VirtualFile root : contentRoots) { |
| PsiDirectory dir = PsiManager.getInstance(module.getProject()).findDirectory(root); |
| if (dir != null) { |
| dirs.add(dir); |
| } |
| } |
| |
| return dirs; |
| } |
| } |