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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 "modules/filesystem/DirectoryReaderSync.h"
#include "bindings/core/v8/ExceptionState.h"
#include "modules/filesystem/DirectoryEntry.h"
#include "modules/filesystem/DirectoryEntrySync.h"
#include "modules/filesystem/EntriesCallback.h"
#include "modules/filesystem/EntrySync.h"
#include "modules/filesystem/ErrorCallback.h"
#include "modules/filesystem/FileEntrySync.h"
#include "modules/filesystem/FileSystemCallbacks.h"
namespace blink {
class DirectoryReaderSync::EntriesCallbackHelper final
: public EntriesCallback {
public:
explicit EntriesCallbackHelper(DirectoryReaderSync* reader)
: m_reader(reader) {}
void handleEvent(const EntryHeapVector& entries) override {
EntrySyncHeapVector syncEntries;
syncEntries.reserveInitialCapacity(entries.size());
for (size_t i = 0; i < entries.size(); ++i)
syncEntries.uncheckedAppend(EntrySync::create(entries[i].get()));
m_reader->addEntries(syncEntries);
}
DEFINE_INLINE_VIRTUAL_TRACE() {
visitor->trace(m_reader);
EntriesCallback::trace(visitor);
}
private:
Member<DirectoryReaderSync> m_reader;
};
class DirectoryReaderSync::ErrorCallbackHelper final
: public ErrorCallbackBase {
public:
explicit ErrorCallbackHelper(DirectoryReaderSync* reader)
: m_reader(reader) {}
void invoke(FileError::ErrorCode error) override {
m_reader->setError(error);
}
DEFINE_INLINE_VIRTUAL_TRACE() {
visitor->trace(m_reader);
ErrorCallbackBase::trace(visitor);
}
private:
Member<DirectoryReaderSync> m_reader;
};
DirectoryReaderSync::DirectoryReaderSync(DOMFileSystemBase* fileSystem,
const String& fullPath)
: DirectoryReaderBase(fileSystem, fullPath),
m_callbacksId(0),
m_errorCode(FileError::kOK) {}
DirectoryReaderSync::~DirectoryReaderSync() {}
EntrySyncHeapVector DirectoryReaderSync::readEntries(
ExceptionState& exceptionState) {
if (!m_callbacksId) {
m_callbacksId = filesystem()->readDirectory(
this, m_fullPath, new EntriesCallbackHelper(this),
new ErrorCallbackHelper(this), DOMFileSystemBase::Synchronous);
}
if (m_errorCode == FileError::kOK && m_hasMoreEntries && m_entries.isEmpty())
m_fileSystem->waitForAdditionalResult(m_callbacksId);
if (m_errorCode != FileError::kOK) {
FileError::throwDOMException(exceptionState, m_errorCode);
return EntrySyncHeapVector();
}
EntrySyncHeapVector result;
result.swap(m_entries);
return result;
}
DEFINE_TRACE(DirectoryReaderSync) {
visitor->trace(m_entries);
DirectoryReaderBase::trace(visitor);
}
} // namespace blink
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