file_reader_client.h | Explore in Territory

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#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_FILEAPI_FILE_READER_CLIENT_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_FILEAPI_FILE_READER_CLIENT_H_

#include "base/task/single_thread_task_runner.h"
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/fileapi/file_error.h"
#include "third_party/blink/renderer/core/fileapi/file_reader_data.h"
#include "third_party/blink/renderer/core/typed_arrays/array_buffer/array_buffer_contents.h"
#include "third_party/blink/renderer/platform/blob/blob_data.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"

namespace blink {

enum class FileErrorCode;

// FileReaderClient is used by the FileReaderLoader to read a given blob's raw
// data. For a more convenient way to read blobs that matches the different
// FileReadType's, see FileReaderAccumulator below.
// For more information on how to read Blobs in your specific situation, see:
// https://chromium.googlesource.com/chromium/src/+/HEAD/storage/browser/blob/README.md#how-to-use-blobs-blink-accessing-reading
class CORE_EXPORT FileReaderClient : public GarbageCollectedMixin { … };

// FileReaderAccumulator helps aggregating the data received from
// FileReaderLoader. This class implements a regular FileReaderClient and
// reads the file' chunks until completion. On completion, it provides a
// convenient way to convert the received data to the FileReadType types via
// the FileReaderData class helper.
class CORE_EXPORT FileReaderAccumulator : public FileReaderClient { … };

// The class acts similar to the FileReaderAccumulator, except that it
// works synchronously. This provides a few handy methods to help wait for the
// aggregated result.
class CORE_EXPORT SyncedFileReaderAccumulator
    : public GarbageCollected<SyncedFileReaderAccumulator>,
      public FileReaderAccumulator { … };

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_FILEAPI_FILE_READER_CLIENT_H_
chromium/third_party/blink/renderer/core/fileapi/file_reader_client.h
