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content / browser / file_system_access / file_path_watcher / file_path_watcher_mac.cc [blame]
// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/file_system_access/file_path_watcher/file_path_watcher.h"
#include <memory>
#include "base/memory/ptr_util.h"
#include "build/build_config.h"
#include "content/browser/file_system_access/file_path_watcher/file_path_watcher_kqueue.h"
#if !BUILDFLAG(IS_IOS)
#include "content/browser/file_system_access/file_path_watcher/file_path_watcher_fsevents.h"
#endif
namespace content {
namespace {
class FilePathWatcherImpl : public FilePathWatcher::PlatformDelegate {
public:
FilePathWatcherImpl() = default;
FilePathWatcherImpl(const FilePathWatcherImpl&) = delete;
FilePathWatcherImpl& operator=(const FilePathWatcherImpl&) = delete;
~FilePathWatcherImpl() override = default;
bool Watch(const base::FilePath& path,
Type type,
const FilePathWatcher::Callback& callback) override {
// Use kqueue for non-recursive watches and FSEvents for recursive ones.
DCHECK(!impl_.get());
if (type == Type::kRecursive) {
if (!FilePathWatcher::RecursiveWatchAvailable()) {
return false;
}
#if !BUILDFLAG(IS_IOS)
impl_ = std::make_unique<FilePathWatcherFSEvents>();
#endif // BUILDFLAG(IS_IOS)
} else {
impl_ = std::make_unique<FilePathWatcherKQueue>();
}
DCHECK(impl_.get());
return impl_->Watch(path, type, callback);
}
bool WatchWithChangeInfo(
const base::FilePath& path,
const WatchOptions& options,
const FilePathWatcher::CallbackWithChangeInfo& callback) override {
impl_ = std::make_unique<FilePathWatcherFSEvents>();
return impl_->WatchWithChangeInfo(path, options, callback);
}
void Cancel() override {
if (impl_.get()) {
impl_->Cancel();
}
set_cancelled();
}
private:
std::unique_ptr<PlatformDelegate> impl_;
};
} // namespace
FilePathWatcher::FilePathWatcher()
: FilePathWatcher(std::make_unique<FilePathWatcherImpl>()) {}
} // namespace content