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| 1 // Copyright 2011, Google Inc. | |
| 2 // 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 #include "config.h" | |
| 31 #include "bindings/core/dart/DartBlob.h" | |
| 32 | |
| 33 #include "bindings/core/dart/DartFile.h" | |
| 34 #include "core/dom/ExecutionContext.h" | |
| 35 | |
| 36 namespace blink { | |
| 37 | |
| 38 namespace DartBlobInternal { | |
| 39 | |
| 40 void constructorCallback(Dart_NativeArguments args) | |
| 41 { | |
| 42 Dart_Handle exception = 0; | |
| 43 { | |
| 44 ExecutionContext* context = DartUtilities::scriptExecutionContext(); | |
| 45 if (!context) { | |
| 46 exception = Dart_NewStringFromCString("Blob constructor associated d
ocument is unavailable"); | |
| 47 goto fail; | |
| 48 } | |
| 49 | |
| 50 Vector<Dart_Handle> blobParts; | |
| 51 DartUtilities::extractListElements(Dart_GetNativeArgument(args, 0), exce
ption, blobParts); | |
| 52 if (exception) | |
| 53 goto fail; | |
| 54 | |
| 55 String type = DartUtilities::dartToStringWithNullCheck(args, 1, exceptio
n); | |
| 56 if (exception) | |
| 57 goto fail; | |
| 58 | |
| 59 String endings = DartUtilities::dartToStringWithNullCheck(args, 2, excep
tion); | |
| 60 if (exception) | |
| 61 goto fail; | |
| 62 if (endings.isNull()) | |
| 63 endings = "transparent"; | |
| 64 if (endings != "transparent" && endings != "native") { | |
| 65 exception = Dart_NewStringFromCString("The endings property must be
either \"transparent\" or \"native\""); | |
| 66 goto fail; | |
| 67 } | |
| 68 | |
| 69 // FIXMEDART: we could optimize when/where we compute this bool. | |
| 70 bool normalizeLineEndingsToNative = endings == "native"; | |
| 71 | |
| 72 OwnPtr<BlobData> blobData = BlobData::create(); | |
| 73 blobData->setContentType(type); | |
| 74 | |
| 75 uint32_t length = blobParts.size(); | |
| 76 | |
| 77 for (uint32_t i = 0; i < length; ++i) { | |
| 78 Dart_Handle item = blobParts[i]; | |
| 79 if (Dart_IsByteBuffer(item) || Dart_IsTypedData(item)) { | |
| 80 RefPtr<ArrayBuffer> arrayBuffer = DartUtilities::dartToArrayBuff
er(item, exception); | |
| 81 if (exception) | |
| 82 goto fail; | |
| 83 ASSERT(arrayBuffer); | |
| 84 blobData->appendArrayBuffer(arrayBuffer.get()); | |
| 85 } else if (DartDOMWrapper::subtypeOf(item, DartBlob::dartClassId)) { | |
| 86 Blob* blob = DartBlob::toNative(item, exception); | |
| 87 if (exception) | |
| 88 goto fail; | |
| 89 ASSERT(blob); | |
| 90 blobData->appendBlob(blob->blobDataHandle(), 0, blob->size()); | |
| 91 } else { | |
| 92 String stringValue = DartUtilities::dartToString(item, exception
); | |
| 93 if (exception) | |
| 94 goto fail; | |
| 95 blobData->appendText(stringValue, normalizeLineEndingsToNative); | |
| 96 } | |
| 97 } | |
| 98 | |
| 99 long long blobSize = blobData->length(); | |
| 100 RefPtr<Blob> blob = Blob::create(BlobDataHandle::create(blobData.release
(), blobSize)); | |
| 101 DartDOMWrapper::returnToDart<DartBlob>(args, blob.release()); | |
| 102 return; | |
| 103 } | |
| 104 | |
| 105 fail: | |
| 106 Dart_ThrowException(exception); | |
| 107 ASSERT_NOT_REACHED(); | |
| 108 } | |
| 109 | |
| 110 } | |
| 111 | |
| 112 Dart_Handle DartBlob::createWrapper(DartDOMData* domData, Blob* blob) | |
| 113 { | |
| 114 if (!blob) | |
| 115 return Dart_Null(); | |
| 116 | |
| 117 if (blob->isFile()) | |
| 118 return DartFile::createWrapper(domData, static_cast<File*>(blob)); | |
| 119 | |
| 120 return DartDOMWrapper::createWrapper<DartBlob>(domData, blob); | |
| 121 } | |
| 122 | |
| 123 } | |
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