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/*
* Copyright (C) 2010 Google 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:
*
* * 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.
* * Neither the name of Google Inc. nor the names of its
* 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
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR 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 "third_party/blink/renderer/modules/filesystem/directory_reader_sync.h"
#include "third_party/blink/renderer/modules/filesystem/directory_entry.h"
#include "third_party/blink/renderer/modules/filesystem/directory_entry_sync.h"
#include "third_party/blink/renderer/modules/filesystem/entry_sync.h"
#include "third_party/blink/renderer/modules/filesystem/file_entry_sync.h"
#include "third_party/blink/renderer/modules/filesystem/file_system_callbacks.h"
#include "third_party/blink/renderer/platform/bindings/exception_state.h"
namespace blink {
class DirectoryReaderSync::EntriesCallbackHelper final
: public EntriesCallbacks::OnDidGetEntriesCallback {
public:
static EntriesCallbackHelper* Create(DirectoryReaderSync* reader) {
return MakeGarbageCollected<EntriesCallbackHelper>(reader);
}
explicit EntriesCallbackHelper(DirectoryReaderSync* reader)
: reader_(reader) {}
void Trace(blink::Visitor* visitor) override {
visitor->Trace(reader_);
EntriesCallbacks::OnDidGetEntriesCallback::Trace(visitor);
}
void OnSuccess(EntryHeapVector* entries) override {
reader_->entries_.ReserveCapacity(reader_->entries_.size() +
entries->size());
for (const auto& entry : *entries) {
reader_->entries_.UncheckedAppend(EntrySync::Create(entry.Get()));
}
}
private:
Member<DirectoryReaderSync> reader_;
};
class DirectoryReaderSync::ErrorCallbackHelper final
: public ErrorCallbackBase {
public:
static ErrorCallbackHelper* Create(DirectoryReaderSync* reader) {
return MakeGarbageCollected<ErrorCallbackHelper>(reader);
}
explicit ErrorCallbackHelper(DirectoryReaderSync* reader) : reader_(reader) {}
void Trace(blink::Visitor* visitor) override {
visitor->Trace(reader_);
ErrorCallbackBase::Trace(visitor);
}
void Invoke(base::File::Error error) override {
reader_->error_code_ = error;
}
private:
Member<DirectoryReaderSync> reader_;
};
DirectoryReaderSync::DirectoryReaderSync(DOMFileSystemBase* file_system,
const String& full_path)
: DirectoryReaderBase(file_system, full_path) {}
EntrySyncHeapVector DirectoryReaderSync::readEntries(
ExceptionState& exception_state) {
if (!has_called_read_directory_) {
Filesystem()->ReadDirectory(
this, full_path_, EntriesCallbackHelper::Create(this),
ErrorCallbackHelper::Create(this), DOMFileSystemBase::kSynchronous);
has_called_read_directory_ = true;
}
DCHECK(!has_more_entries_);
if (error_code_ != base::File::FILE_OK) {
file_error::ThrowDOMException(exception_state, error_code_);
return EntrySyncHeapVector();
}
EntrySyncHeapVector result;
result.swap(entries_);
return result;
}
void DirectoryReaderSync::Trace(blink::Visitor* visitor) {
visitor->Trace(entries_);
DirectoryReaderBase::Trace(visitor);
}
} // namespace blink
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