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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/extensions/api/file_handlers/directory_util.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/thread_task_runner_handle.h"
#include "chrome/browser/profiles/profile.h"
#include "content/public/browser/browser_thread.h"
#include "net/base/filename_util.h"
#include "storage/browser/fileapi/file_system_url.h"
#if defined(OS_CHROMEOS)
#include "chrome/browser/chromeos/file_manager/filesystem_api_util.h"
#endif
namespace extensions {
namespace app_file_handler_util {
namespace {
void GetIsDirectoryFromFileInfo(const base::FilePath& path,
bool* is_directory) {
base::File::Info file_info;
*is_directory = GetFileInfo(path, &file_info) && file_info.is_directory;
}
void OnGetIsDirectoryFromFileInfoCompleted(
scoped_ptr<bool> is_directory,
const base::Callback<void(bool)>& callback) {
callback.Run(*is_directory);
}
// The callback parameter contains the result and is required to support
// both native local directories to avoid UI thread and non native local
// path directories for the IsNonNativeLocalPathDirectory API.
void EntryIsDirectory(Profile* profile,
const base::FilePath& path,
const base::Callback<void(bool)>& callback) {
#if defined(OS_CHROMEOS)
if (file_manager::util::IsUnderNonNativeLocalPath(profile, path)) {
file_manager::util::IsNonNativeLocalPathDirectory(profile, path, callback);
return;
}
#endif
scoped_ptr<bool> is_directory(new bool);
bool* const is_directory_ptr = is_directory.get();
content::BrowserThread::PostBlockingPoolTaskAndReply(
FROM_HERE,
base::Bind(&GetIsDirectoryFromFileInfo, path, is_directory_ptr),
base::Bind(&OnGetIsDirectoryFromFileInfoCompleted,
base::Passed(&is_directory), callback));
}
} // namespace
IsDirectoryCollector::IsDirectoryCollector(Profile* profile)
: profile_(profile), left_(0), weak_ptr_factory_(this) {}
IsDirectoryCollector::~IsDirectoryCollector() {}
void IsDirectoryCollector::CollectForEntriesPaths(
const std::vector<base::FilePath>& paths,
const CompletionCallback& callback) {
DCHECK(!callback.is_null());
paths_ = paths;
callback_ = callback;
DCHECK(!result_.get());
result_.reset(new std::set<base::FilePath>());
left_ = paths.size();
if (!left_) {
// Nothing to process.
base::ThreadTaskRunnerHandle::Get()->PostTask(
FROM_HERE, base::Bind(callback_, base::Passed(&result_)));
callback_ = CompletionCallback();
return;
}
for (size_t i = 0; i < paths.size(); ++i) {
EntryIsDirectory(profile_, paths[i],
base::Bind(&IsDirectoryCollector::OnIsDirectoryCollected,
weak_ptr_factory_.GetWeakPtr(), i));
}
}
void IsDirectoryCollector::OnIsDirectoryCollected(size_t index,
bool is_directory) {
if (is_directory)
result_->insert(paths_[index]);
if (!--left_) {
base::ThreadTaskRunnerHandle::Get()->PostTask(
FROM_HERE, base::Bind(callback_, base::Passed(&result_)));
// Release the callback to avoid a circullar reference in case an instance
// of this class is a member of a ref counted class, which instance is bound
// to this callback.
callback_ = CompletionCallback();
}
}
} // namespace app_file_handler_util
} // namespace extensions
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