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/*
* Copyright (C) 2017-2020 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "DirectoryFileListCreator.h"
#include "Document.h"
#include "FileChooser.h"
#include "FileList.h"
#include <wtf/CrossThreadCopier.h>
#include <wtf/FileSystem.h>
#include <wtf/text/MakeString.h>
namespace WebCore {
DirectoryFileListCreator::~DirectoryFileListCreator()
{
ASSERT(!m_completionHandler);
}
struct FileInformation {
String path;
String relativePath;
String displayName;
FileInformation isolatedCopy() const & { return { path.isolatedCopy(), relativePath.isolatedCopy(), displayName.isolatedCopy() }; }
FileInformation isolatedCopy() && { return { WTFMove(path).isolatedCopy(), relativePath.isolatedCopy(), WTFMove(displayName).isolatedCopy() }; }
};
static void appendDirectoryFiles(const String& directory, const String& relativePath, Vector<FileInformation>& files)
{
ASSERT(!isMainThread());
for (auto& childName : FileSystem::listDirectory(directory)) {
auto childPath = FileSystem::pathByAppendingComponent(directory, childName);
if (FileSystem::isHiddenFile(childPath))
continue;
auto fileType = FileSystem::fileType(childPath);
if (!fileType)
continue;
auto childRelativePath = makeString(relativePath, '/', childName);
if (*fileType == FileSystem::FileType::Directory)
appendDirectoryFiles(childPath, childRelativePath, files);
else if (*fileType == FileSystem::FileType::Regular)
files.append(FileInformation { childPath, childRelativePath, { } });
}
}
static Vector<FileInformation> gatherFileInformation(const Vector<FileChooserFileInfo>& paths)
{
ASSERT(!isMainThread());
Vector<FileInformation> files;
for (auto& info : paths) {
if (FileSystem::fileType(info.path) == FileSystem::FileType::Directory)
appendDirectoryFiles(info.path, FileSystem::pathFileName(info.path), files);
else
files.append(FileInformation { info.path, { }, info.displayName });
}
return files;
}
static Ref<FileList> toFileList(Document* document, const Vector<FileInformation>& files)
{
ASSERT(isMainThread());
auto fileObjects = files.map([document](auto& file) {
if (file.relativePath.isNull())
return File::create(document, file.path, { }, file.displayName);
return File::createWithRelativePath(document, file.path, file.relativePath);
});
return FileList::create(WTFMove(fileObjects));
}
DirectoryFileListCreator::DirectoryFileListCreator(CompletionHandler&& completionHandler)
: m_workQueue(WorkQueue::create("DirectoryFileListCreator Work Queue"_s))
, m_completionHandler(WTFMove(completionHandler))
{
}
void DirectoryFileListCreator::start(Document* document, const Vector<FileChooserFileInfo>& paths)
{
// Resolve directories on a background thread to avoid blocking the main thread.
m_workQueue->dispatch([this, protectedThis = Ref { *this }, document = RefPtr { document }, paths = crossThreadCopy(paths)]() mutable {
auto files = gatherFileInformation(paths);
callOnMainThread([this, protectedThis = WTFMove(protectedThis), document = WTFMove(document), files = crossThreadCopy(files)]() mutable {
if (auto completionHandler = std::exchange(m_completionHandler, nullptr))
completionHandler(toFileList(document.get(), files));
});
});
}
void DirectoryFileListCreator::cancel()
{
m_completionHandler = nullptr;
m_workQueue = nullptr;
}
} // namespace WebCore
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