webfilewriter_base.h revision 3551c9c881056c480085172ff9840cab31610854
13551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)// Copyright 2013 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 53551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)#ifndef CONTENT_CHILD_FILEAPI_WEBFILEWRITER_BASE_H_ 63551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)#define CONTENT_CHILD_FILEAPI_WEBFILEWRITER_BASE_H_ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/platform_file.h" 93551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)#include "content/common/content_export.h" 107d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles)#include "third_party/WebKit/public/web/WebFileWriter.h" 11eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch#include "url/gurl.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace WebKit { 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class WebFileWriterClient; 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class WebURL; 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 183551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)namespace content { 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 203551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)class CONTENT_EXPORT WebFileWriterBase 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : public NON_EXPORTED_BASE(WebKit::WebFileWriter) { 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 233551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) WebFileWriterBase(const GURL& path, WebKit::WebFileWriterClient* client); 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~WebFileWriterBase(); 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // WebFileWriter implementation 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void truncate(long long length); 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void write(long long position, const WebKit::WebURL& blobURL); 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void cancel(); 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) protected: 3290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) // This calls DidSucceed() or DidFail() based on the value of |error_code|. 3390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) void DidFinish(base::PlatformFileError error_code); 3490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 3590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) void DidWrite(int64 bytes, bool complete); 3690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) void DidSucceed(); 3790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) void DidFail(base::PlatformFileError error_code); 3890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Derived classes must provide these methods to asynchronously perform 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // the requested operation, and they must call the appropiate DidSomething 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // method upon completion and as progress is made in the Write case. 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void DoTruncate(const GURL& path, int64 offset) = 0; 433551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) virtual void DoWrite(const GURL& path, 443551c9c881056c480085172ff9840cab31610854Torne (Richard Coles) const GURL& blob_url, 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int64 offset) = 0; 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void DoCancel() = 0; 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enum OperationType { 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) kOperationNone, 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) kOperationWrite, 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) kOperationTruncate 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enum CancelState { 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) kCancelNotInProgress, 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) kCancelSent, 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) kCancelReceivedWriteResponse, 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void FinishCancel(); 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GURL path_; 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) WebKit::WebFileWriterClient* client_; 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) OperationType operation_; 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CancelState cancel_state_; 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 693551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)} // namespace content 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 713551c9c881056c480085172ff9840cab31610854Torne (Richard Coles)#endif // CONTENT_CHILD_FILEAPI_WEBFILEWRITER_BASE_H_ 72