1/*
2 * Copyright (C) 2010 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include "config.h"
32
33#include "FileReaderSync.h"
34
35#include "Blob.h"
36#include "BlobURL.h"
37#include "FileReaderLoader.h"
38#include <JavaScriptCore/ArrayBuffer.h>
39
40namespace WebCore {
41
42FileReaderSync::FileReaderSync()
43{
44}
45
46ExceptionOr<RefPtr<ArrayBuffer>> FileReaderSync::readAsArrayBuffer(ScriptExecutionContext& scriptExecutionContext, Blob& blob)
47{
48 FileReaderLoader loader(FileReaderLoader::ReadAsArrayBuffer, 0);
49 auto result = startLoading(scriptExecutionContext, loader, blob);
50 if (result.hasException())
51 return result.releaseException();
52 return loader.arrayBufferResult();
53}
54
55ExceptionOr<String> FileReaderSync::readAsBinaryString(ScriptExecutionContext& scriptExecutionContext, Blob& blob)
56{
57 FileReaderLoader loader(FileReaderLoader::ReadAsBinaryString, 0);
58 return startLoadingString(scriptExecutionContext, loader, blob);
59}
60
61ExceptionOr<String> FileReaderSync::readAsText(ScriptExecutionContext& scriptExecutionContext, Blob& blob, const String& encoding)
62{
63 FileReaderLoader loader(FileReaderLoader::ReadAsText, 0);
64 loader.setEncoding(encoding);
65 return startLoadingString(scriptExecutionContext, loader, blob);
66}
67
68ExceptionOr<String> FileReaderSync::readAsDataURL(ScriptExecutionContext& scriptExecutionContext, Blob& blob)
69{
70 FileReaderLoader loader(FileReaderLoader::ReadAsDataURL, 0);
71 loader.setDataType(blob.type());
72 return startLoadingString(scriptExecutionContext, loader, blob);
73}
74
75static ExceptionOr<void> errorCodeToException(FileError::ErrorCode errorCode)
76{
77 switch (errorCode) {
78 case FileError::OK:
79 return { };
80 case FileError::NOT_FOUND_ERR:
81 return Exception { NotFoundError };
82 case FileError::SECURITY_ERR:
83 return Exception { SecurityError };
84 case FileError::ABORT_ERR:
85 return Exception { AbortError };
86 case FileError::NOT_READABLE_ERR:
87 return Exception { NotReadableError };
88 case FileError::ENCODING_ERR:
89 return Exception { EncodingError };
90 case FileError::NO_MODIFICATION_ALLOWED_ERR:
91 return Exception { NoModificationAllowedError };
92 case FileError::INVALID_STATE_ERR:
93 return Exception { InvalidStateError };
94 case FileError::SYNTAX_ERR:
95 return Exception { SyntaxError };
96 case FileError::INVALID_MODIFICATION_ERR:
97 return Exception { InvalidModificationError };
98 case FileError::QUOTA_EXCEEDED_ERR:
99 return Exception { QuotaExceededError };
100 case FileError::TYPE_MISMATCH_ERR:
101 return Exception { TypeMismatchError };
102 case FileError::PATH_EXISTS_ERR:
103 return Exception { NoModificationAllowedError };
104 }
105 return Exception { UnknownError };
106}
107
108ExceptionOr<void> FileReaderSync::startLoading(ScriptExecutionContext& scriptExecutionContext, FileReaderLoader& loader, Blob& blob)
109{
110 loader.start(&scriptExecutionContext, blob);
111 return errorCodeToException(loader.errorCode());
112}
113
114ExceptionOr<String> FileReaderSync::startLoadingString(ScriptExecutionContext& scriptExecutionContext, FileReaderLoader& loader, Blob& blob)
115{
116 auto result = startLoading(scriptExecutionContext, loader, blob);
117 if (result.hasException())
118 return result.releaseException();
119 return loader.stringResult();
120}
121
122} // namespace WebCore
123