chromium/src/third_party/blink/renderer/modules/filesystem/directory_entry_sync.cc

/*
 * Copyright (C) 2010 Google Inc. All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * 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.
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 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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#include "third_party/blink/renderer/modules/filesystem/directory_entry_sync.h"

#include "third_party/blink/renderer/bindings/modules/v8/v8_file_system_flags.h"
#include "third_party/blink/renderer/modules/filesystem/directory_reader_sync.h"
#include "third_party/blink/renderer/modules/filesystem/entry.h"
#include "third_party/blink/renderer/modules/filesystem/file_entry_sync.h"
#include "third_party/blink/renderer/modules/filesystem/sync_callback_helper.h"
#include "third_party/blink/renderer/platform/bindings/exception_state.h"
#include "third_party/blink/renderer/platform/wtf/casting.h"

namespace blink {

DirectoryEntrySync::DirectoryEntrySync(DOMFileSystemBase* file_system,
                                       const String& full_path)
    : EntrySync(file_system, full_path) {}

DirectoryReaderSync* DirectoryEntrySync::createReader() {
  return MakeGarbageCollected<DirectoryReaderSync>(file_system_, full_path_);
}

FileEntrySync* DirectoryEntrySync::getFile(const String& path,
                                           const FileSystemFlags* options,
                                           ExceptionState& exception_state) {
  auto* sync_helper = MakeGarbageCollected<EntryCallbacksSyncHelper>();

  auto success_callback_wrapper =
      WTF::Bind(&EntryCallbacksSyncHelper::OnSuccess,
                WrapPersistentIfNeeded(sync_helper));
  auto error_callback_wrapper = WTF::Bind(&EntryCallbacksSyncHelper::OnError,
                                          WrapPersistentIfNeeded(sync_helper));

  file_system_->GetFile(
      this, path, options, std::move(success_callback_wrapper),
      std::move(error_callback_wrapper), DOMFileSystemBase::kSynchronous);
  Entry* entry = sync_helper->GetResultOrThrow(exception_state);
  return entry ? To<FileEntrySync>(EntrySync::Create(entry)) : nullptr;
}

DirectoryEntrySync* DirectoryEntrySync::getDirectory(
    const String& path,
    const FileSystemFlags* options,
    ExceptionState& exception_state) {
  auto* sync_helper = MakeGarbageCollected<EntryCallbacksSyncHelper>();

  auto success_callback_wrapper =
      WTF::Bind(&EntryCallbacksSyncHelper::OnSuccess,
                WrapPersistentIfNeeded(sync_helper));
  auto error_callback_wrapper = WTF::Bind(&EntryCallbacksSyncHelper::OnError,
                                          WrapPersistentIfNeeded(sync_helper));

  file_system_->GetDirectory(
      this, path, options, std::move(success_callback_wrapper),
      std::move(error_callback_wrapper), DOMFileSystemBase::kSynchronous);

  Entry* entry = sync_helper->GetResultOrThrow(exception_state);
  return entry ? To<DirectoryEntrySync>(EntrySync::Create(entry)) : nullptr;
}

void DirectoryEntrySync::removeRecursively(ExceptionState& exception_state) {
  auto* sync_helper = MakeGarbageCollected<VoidCallbacksSyncHelper>();

  auto error_callback_wrapper = WTF::Bind(&VoidCallbacksSyncHelper::OnError,
                                          WrapPersistentIfNeeded(sync_helper));

  file_system_->RemoveRecursively(this, VoidCallbacks::SuccessCallback(),
                                  std::move(error_callback_wrapper),
                                  DOMFileSystemBase::kSynchronous);
  sync_helper->GetResultOrThrow(exception_state);
}

void DirectoryEntrySync::Trace(Visitor* visitor) const {
  EntrySync::Trace(visitor);
}

}  // namespace blink