FileReaderSync.cpp [plain text]
#include "config.h"
#if ENABLE(BLOB)
#include "FileReaderSync.h"
#include "Blob.h"
#include "BlobURL.h"
#include "FileException.h"
#include "FileReaderLoader.h"
#include <wtf/ArrayBuffer.h>
#include <wtf/PassRefPtr.h>
namespace WebCore {
FileReaderSync::FileReaderSync()
{
}
PassRefPtr<ArrayBuffer> FileReaderSync::readAsArrayBuffer(ScriptExecutionContext* scriptExecutionContext, Blob* blob, ExceptionCode& ec)
{
if (!blob) {
ec = NOT_FOUND_ERR;
return 0;
}
FileReaderLoader loader(FileReaderLoader::ReadAsArrayBuffer, 0);
startLoading(scriptExecutionContext, loader, blob, ec);
return loader.arrayBufferResult();
}
String FileReaderSync::readAsBinaryString(ScriptExecutionContext* scriptExecutionContext, Blob* blob, ExceptionCode& ec)
{
if (!blob) {
ec = NOT_FOUND_ERR;
return String();
}
FileReaderLoader loader(FileReaderLoader::ReadAsBinaryString, 0);
startLoading(scriptExecutionContext, loader, blob, ec);
return loader.stringResult();
}
String FileReaderSync::readAsText(ScriptExecutionContext* scriptExecutionContext, Blob* blob, const String& encoding, ExceptionCode& ec)
{
if (!blob) {
ec = NOT_FOUND_ERR;
return String();
}
FileReaderLoader loader(FileReaderLoader::ReadAsText, 0);
loader.setEncoding(encoding);
startLoading(scriptExecutionContext, loader, blob, ec);
return loader.stringResult();
}
String FileReaderSync::readAsDataURL(ScriptExecutionContext* scriptExecutionContext, Blob* blob, ExceptionCode& ec)
{
if (!blob) {
ec = NOT_FOUND_ERR;
return String();
}
FileReaderLoader loader(FileReaderLoader::ReadAsDataURL, 0);
loader.setDataType(blob->type());
startLoading(scriptExecutionContext, loader, blob, ec);
return loader.stringResult();
}
void FileReaderSync::startLoading(ScriptExecutionContext* scriptExecutionContext, FileReaderLoader& loader, Blob* blob, ExceptionCode& ec)
{
loader.start(scriptExecutionContext, blob);
ec = FileException::ErrorCodeToExceptionCode(loader.errorCode());
}
}
#endif // ENABLE(BLOB)