1/*
2 * Copyright (C) 2017 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "FileListCreator.h"
28
29#include "FileChooser.h"
30#include "FileList.h"
31#include <wtf/CrossThreadCopier.h>
32#include <wtf/FileMetadata.h>
33#include <wtf/FileSystem.h>
34
35namespace WebCore {
36
37FileListCreator::~FileListCreator()
38{
39 ASSERT(!m_completionHander);
40}
41
42static void appendDirectoryFiles(const String& directory, const String& relativePath, Vector<Ref<File>>& fileObjects)
43{
44 for (auto& childPath : FileSystem::listDirectory(directory, "*")) {
45 auto metadata = FileSystem::fileMetadata(childPath);
46 if (!metadata)
47 continue;
48
49 if (metadata.value().isHidden)
50 continue;
51
52 String childRelativePath = relativePath + "/" + FileSystem::pathGetFileName(childPath);
53 if (metadata.value().type == FileMetadata::Type::Directory)
54 appendDirectoryFiles(childPath, childRelativePath, fileObjects);
55 else if (metadata.value().type == FileMetadata::Type::File)
56 fileObjects.append(File::createWithRelativePath(childPath, childRelativePath));
57 }
58}
59
60FileListCreator::FileListCreator(const Vector<FileChooserFileInfo>& paths, ShouldResolveDirectories shouldResolveDirectories, CompletionHandler&& completionHandler)
61{
62 if (shouldResolveDirectories == ShouldResolveDirectories::No)
63 completionHandler(createFileList<ShouldResolveDirectories::No>(paths));
64 else {
65 // Resolve directories on a background thread to avoid blocking the main thread.
66 m_completionHander = WTFMove(completionHandler);
67 m_workQueue = WorkQueue::create("FileListCreator Work Queue");
68 m_workQueue->dispatch([this, protectedThis = makeRef(*this), paths = crossThreadCopy(paths)]() mutable {
69 auto fileList = createFileList<ShouldResolveDirectories::Yes>(paths);
70 callOnMainThread([this, protectedThis = WTFMove(protectedThis), fileList = WTFMove(fileList)]() mutable {
71 if (auto completionHander = WTFMove(m_completionHander))
72 completionHander(WTFMove(fileList));
73 });
74 });
75 }
76}
77
78template<FileListCreator::ShouldResolveDirectories shouldResolveDirectories>
79Ref<FileList> FileListCreator::createFileList(const Vector<FileChooserFileInfo>& paths)
80{
81 Vector<Ref<File>> fileObjects;
82 for (auto& info : paths) {
83 if (shouldResolveDirectories == ShouldResolveDirectories::Yes && FileSystem::fileIsDirectory(info.path, FileSystem::ShouldFollowSymbolicLinks::No))
84 appendDirectoryFiles(info.path, FileSystem::pathGetFileName(info.path), fileObjects);
85 else
86 fileObjects.append(File::createWithName(info.path, info.displayName));
87 }
88 return FileList::create(WTFMove(fileObjects));
89}
90
91void FileListCreator::cancel()
92{
93 m_completionHander = nullptr;
94 m_workQueue = nullptr;
95}
96
97} // namespace WebCore
98