| /* |
| * Copyright (C) 2010 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "third_party/blink/renderer/modules/filesystem/file_writer_sync.h" |
| |
| #include "third_party/blink/public/platform/web_url.h" |
| #include "third_party/blink/renderer/core/fileapi/blob.h" |
| #include "third_party/blink/renderer/modules/filesystem/file_system_dispatcher.h" |
| #include "third_party/blink/renderer/platform/bindings/exception_state.h" |
| #include "third_party/blink/renderer/platform/wtf/functional.h" |
| |
| namespace blink { |
| |
| void FileWriterSync::write(Blob* data, ExceptionState& exception_state) { |
| DCHECK(data); |
| DCHECK(complete_); |
| |
| PrepareForWrite(); |
| Write(position(), data->Uuid()); |
| DCHECK(complete_); |
| if (error_) { |
| file_error::ThrowDOMException(exception_state, error_); |
| return; |
| } |
| SetPosition(position() + data->size()); |
| if (position() > length()) |
| SetLength(position()); |
| } |
| |
| void FileWriterSync::seek(long long position, ExceptionState& exception_state) { |
| DCHECK(complete_); |
| SeekInternal(position); |
| } |
| |
| void FileWriterSync::truncate(long long offset, |
| ExceptionState& exception_state) { |
| DCHECK(complete_); |
| if (offset < 0) { |
| exception_state.ThrowDOMException(DOMExceptionCode::kInvalidStateError, |
| file_error::kInvalidStateErrorMessage); |
| return; |
| } |
| PrepareForWrite(); |
| Truncate(offset); |
| DCHECK(complete_); |
| if (error_) { |
| file_error::ThrowDOMException(exception_state, error_); |
| return; |
| } |
| if (offset < position()) |
| SetPosition(offset); |
| SetLength(offset); |
| } |
| |
| void FileWriterSync::DidWriteImpl(int64_t bytes, bool complete) { |
| DCHECK_EQ(base::File::FILE_OK, error_); |
| DCHECK(!complete_); |
| complete_ = complete; |
| } |
| |
| void FileWriterSync::DidTruncateImpl() { |
| DCHECK_EQ(base::File::FILE_OK, error_); |
| DCHECK(!complete_); |
| complete_ = true; |
| } |
| |
| void FileWriterSync::DidFailImpl(base::File::Error error) { |
| DCHECK_EQ(base::File::FILE_OK, error_); |
| error_ = error; |
| DCHECK(!complete_); |
| complete_ = true; |
| } |
| |
| void FileWriterSync::DoTruncate(const KURL& path, int64_t offset) { |
| if (!GetExecutionContext()) |
| return; |
| FileSystemDispatcher::From(GetExecutionContext()) |
| .TruncateSync( |
| path, offset, |
| WTF::Bind(&FileWriterSync::DidFinish, WrapWeakPersistent(this))); |
| } |
| |
| void FileWriterSync::DoWrite(const KURL& path, |
| const String& blob_id, |
| int64_t offset) { |
| if (!GetExecutionContext()) |
| return; |
| FileSystemDispatcher::From(GetExecutionContext()) |
| .WriteSync( |
| path, blob_id, offset, |
| WTF::BindRepeating(&FileWriterSync::DidWrite, |
| WrapWeakPersistent(this)), |
| WTF::Bind(&FileWriterSync::DidFinish, WrapWeakPersistent(this))); |
| } |
| |
| void FileWriterSync::DoCancel() { |
| NOTREACHED(); |
| } |
| |
| FileWriterSync::FileWriterSync(ExecutionContext* context) |
| : ContextClient(context), error_(base::File::FILE_OK), complete_(true) {} |
| |
| void FileWriterSync::PrepareForWrite() { |
| DCHECK(complete_); |
| error_ = base::File::FILE_OK; |
| complete_ = false; |
| } |
| |
| FileWriterSync::~FileWriterSync() = default; |
| |
| void FileWriterSync::Trace(blink::Visitor* visitor) { |
| ScriptWrappable::Trace(visitor); |
| FileWriterBase::Trace(visitor); |
| ContextClient::Trace(visitor); |
| } |
| |
| } // namespace blink |