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 "modules/filesystem/FileWriterSync.h" 34 35#include "bindings/core/v8/ExceptionState.h" 36#include "core/dom/ExceptionCode.h" 37#include "core/fileapi/Blob.h" 38#include "public/platform/WebFileWriter.h" 39#include "public/platform/WebURL.h" 40 41namespace blink { 42 43void FileWriterSync::write(Blob* data, ExceptionState& exceptionState) 44{ 45 ASSERT(writer()); 46 ASSERT(m_complete); 47 if (!data) { 48 exceptionState.throwDOMException(TypeMismatchError, FileError::typeMismatchErrorMessage); 49 return; 50 } 51 52 prepareForWrite(); 53 writer()->write(position(), data->uuid()); 54 ASSERT(m_complete); 55 if (m_error) { 56 FileError::throwDOMException(exceptionState, m_error); 57 return; 58 } 59 setPosition(position() + data->size()); 60 if (position() > length()) 61 setLength(position()); 62} 63 64void FileWriterSync::seek(long long position, ExceptionState& exceptionState) 65{ 66 ASSERT(writer()); 67 ASSERT(m_complete); 68 seekInternal(position); 69} 70 71void FileWriterSync::truncate(long long offset, ExceptionState& exceptionState) 72{ 73 ASSERT(writer()); 74 ASSERT(m_complete); 75 if (offset < 0) { 76 exceptionState.throwDOMException(InvalidStateError, FileError::invalidStateErrorMessage); 77 return; 78 } 79 prepareForWrite(); 80 writer()->truncate(offset); 81 ASSERT(m_complete); 82 if (m_error) { 83 FileError::throwDOMException(exceptionState, m_error); 84 return; 85 } 86 if (offset < position()) 87 setPosition(offset); 88 setLength(offset); 89} 90 91void FileWriterSync::didWrite(long long bytes, bool complete) 92{ 93 ASSERT(m_error == FileError::OK); 94 ASSERT(!m_complete); 95#if ENABLE(ASSERT) 96 m_complete = complete; 97#else 98 ASSERT_UNUSED(complete, complete); 99#endif 100} 101 102void FileWriterSync::didTruncate() 103{ 104 ASSERT(m_error == FileError::OK); 105 ASSERT(!m_complete); 106#if ENABLE(ASSERT) 107 m_complete = true; 108#endif 109} 110 111void FileWriterSync::didFail(WebFileError error) 112{ 113 ASSERT(m_error == FileError::OK); 114 m_error = static_cast<FileError::ErrorCode>(error); 115 ASSERT(!m_complete); 116#if ENABLE(ASSERT) 117 m_complete = true; 118#endif 119} 120 121FileWriterSync::FileWriterSync() 122 : m_error(FileError::OK) 123#if ENABLE(ASSERT) 124 , m_complete(true) 125#endif 126{ 127} 128 129void FileWriterSync::prepareForWrite() 130{ 131 ASSERT(m_complete); 132 m_error = FileError::OK; 133#if ENABLE(ASSERT) 134 m_complete = false; 135#endif 136} 137 138FileWriterSync::~FileWriterSync() 139{ 140} 141 142 143} // namespace blink 144