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#ifndef WebFileSystemCallbacksImpl_h 32#define WebFileSystemCallbacksImpl_h 33 34#include "modules/filesystem/FileSystemType.h" 35#include "public/platform/WebFileSystem.h" 36#include "public/platform/WebFileSystemCallbacks.h" 37#include "public/platform/WebVector.h" 38#include "wtf/OwnPtr.h" 39#include "wtf/PassOwnPtr.h" 40 41namespace WebCore { 42class AsyncFileSystemCallbacks; 43class AsyncFileWriterChromium; 44class BlobDataHandle; 45class ScriptExecutionContext; 46} 47 48namespace WebKit { 49 50struct WebFileInfo; 51struct WebFileSystemEntry; 52class WebString; 53class WebURL; 54 55class WebFileSystemCallbacksImpl : public WebFileSystemCallbacks { 56public: 57 WebFileSystemCallbacksImpl(PassOwnPtr<WebCore::AsyncFileSystemCallbacks>, WebCore::ScriptExecutionContext* = 0, WebCore::FileSystemSynchronousType = WebCore::AsynchronousFileSystem); 58 WebFileSystemCallbacksImpl(PassOwnPtr<WebCore::AsyncFileSystemCallbacks>, PassOwnPtr<WebCore::AsyncFileWriterChromium>); 59 virtual ~WebFileSystemCallbacksImpl(); 60 61 virtual void didSucceed(); 62 virtual void didReadMetadata(const WebFileInfo&); 63 virtual void didCreateSnapshotFile(const WebFileInfo&); 64 virtual void didReadDirectory(const WebVector<WebFileSystemEntry>& entries, bool hasMore); 65 virtual void didOpenFileSystem(const WebString& name, const WebURL& rootURL); 66 virtual void didCreateFileWriter(WebFileWriter*, long long length); 67 virtual void didFail(WebFileError error); 68 virtual bool shouldBlockUntilCompletion() const; 69 70 // This internal overload is used by WorkerFileSystemCallbacksBridge to deliver a blob data handle 71 // created on the main thread to an AsyncFileSystemCallback on a background worker thread. The other 72 // virtual method is invoked by the embedder. 73 void didCreateSnapshotFile(const WebFileInfo&, PassRefPtr<WebCore::BlobDataHandle> snapshot); 74 75private: 76 OwnPtr<WebCore::AsyncFileSystemCallbacks> m_callbacks; 77 78 // Used for worker's openFileSystem callbacks. 79 WebCore::ScriptExecutionContext* m_context; 80 WebCore::FileSystemSynchronousType m_synchronousType; 81 82 // Used for createFileWriter callbacks. 83 OwnPtr<WebCore::AsyncFileWriterChromium> m_writer; 84}; 85 86} // namespace WebKit 87 88#endif // WebFileSystemCallbacksImpl_h 89