FileReaderSync.cpp [plain text]
#include "config.h"
#include "FileReaderSync.h"
#include "Blob.h"
#include "BlobURL.h"
#include "FileReaderLoader.h"
#include <JavaScriptCore/ArrayBuffer.h>
namespace WebCore {
FileReaderSync::FileReaderSync()
{
}
ExceptionOr<RefPtr<ArrayBuffer>> FileReaderSync::readAsArrayBuffer(ScriptExecutionContext& scriptExecutionContext, Blob& blob)
{
FileReaderLoader loader(FileReaderLoader::ReadAsArrayBuffer, nullptr);
auto result = startLoading(scriptExecutionContext, loader, blob);
if (result.hasException())
return result.releaseException();
return loader.arrayBufferResult();
}
ExceptionOr<String> FileReaderSync::readAsBinaryString(ScriptExecutionContext& scriptExecutionContext, Blob& blob)
{
FileReaderLoader loader(FileReaderLoader::ReadAsBinaryString, nullptr);
return startLoadingString(scriptExecutionContext, loader, blob);
}
ExceptionOr<String> FileReaderSync::readAsText(ScriptExecutionContext& scriptExecutionContext, Blob& blob, const String& encoding)
{
FileReaderLoader loader(FileReaderLoader::ReadAsText, nullptr);
loader.setEncoding(encoding);
return startLoadingString(scriptExecutionContext, loader, blob);
}
ExceptionOr<String> FileReaderSync::readAsDataURL(ScriptExecutionContext& scriptExecutionContext, Blob& blob)
{
FileReaderLoader loader(FileReaderLoader::ReadAsDataURL, nullptr);
loader.setDataType(blob.type());
return startLoadingString(scriptExecutionContext, loader, blob);
}
ExceptionOr<void> FileReaderSync::startLoading(ScriptExecutionContext& scriptExecutionContext, FileReaderLoader& loader, Blob& blob)
{
loader.start(&scriptExecutionContext, blob);
auto error = loader.errorCode();
if (!error)
return { };
return Exception { error.value() };
}
ExceptionOr<String> FileReaderSync::startLoadingString(ScriptExecutionContext& scriptExecutionContext, FileReaderLoader& loader, Blob& blob)
{
auto result = startLoading(scriptExecutionContext, loader, blob);
if (result.hasException())
return result.releaseException();
return loader.stringResult();
}
}