94 lines
3.6 KiB
C++
94 lines
3.6 KiB
C++
/*
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* Copyright (C) 2010 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "FileReaderSync.h"
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#include "Blob.h"
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#include "BlobURL.h"
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#include "FileReaderLoader.h"
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#include <JavaScriptCore/ArrayBuffer.h>
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namespace WebCore {
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FileReaderSync::FileReaderSync()
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{
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}
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ExceptionOr<RefPtr<ArrayBuffer>> FileReaderSync::readAsArrayBuffer(ScriptExecutionContext& scriptExecutionContext, Blob& blob)
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{
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FileReaderLoader loader(FileReaderLoader::ReadAsArrayBuffer, nullptr);
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auto result = startLoading(scriptExecutionContext, loader, blob);
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if (result.hasException())
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return result.releaseException();
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return loader.arrayBufferResult();
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}
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ExceptionOr<String> FileReaderSync::readAsBinaryString(ScriptExecutionContext& scriptExecutionContext, Blob& blob)
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{
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FileReaderLoader loader(FileReaderLoader::ReadAsBinaryString, nullptr);
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return startLoadingString(scriptExecutionContext, loader, blob);
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}
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ExceptionOr<String> FileReaderSync::readAsText(ScriptExecutionContext& scriptExecutionContext, Blob& blob, const String& encoding)
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{
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FileReaderLoader loader(FileReaderLoader::ReadAsText, nullptr);
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loader.setEncoding(encoding);
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return startLoadingString(scriptExecutionContext, loader, blob);
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}
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ExceptionOr<String> FileReaderSync::readAsDataURL(ScriptExecutionContext& scriptExecutionContext, Blob& blob)
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{
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FileReaderLoader loader(FileReaderLoader::ReadAsDataURL, nullptr);
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loader.setDataType(blob.type());
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return startLoadingString(scriptExecutionContext, loader, blob);
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}
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ExceptionOr<void> FileReaderSync::startLoading(ScriptExecutionContext& scriptExecutionContext, FileReaderLoader& loader, Blob& blob)
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{
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loader.start(&scriptExecutionContext, blob);
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auto error = loader.errorCode();
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if (!error)
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return { };
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return Exception { error.value() };
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}
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ExceptionOr<String> FileReaderSync::startLoadingString(ScriptExecutionContext& scriptExecutionContext, FileReaderLoader& loader, Blob& blob)
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{
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auto result = startLoading(scriptExecutionContext, loader, blob);
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if (result.hasException())
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return result.releaseException();
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return loader.stringResult();
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}
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} // namespace WebCore
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