15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 25c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2010 Google Inc. All rights reserved. 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Redistribution and use in source and binary forms, with or without 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * modification, are permitted provided that the following conditions are 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * met: 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Redistributions of source code must retain the above copyright 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer. 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Redistributions in binary form must reproduce the above 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * copyright notice, this list of conditions and the following disclaimer 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * in the documentation and/or other materials provided with the 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * distribution. 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Neither the name of Google Inc. nor the names of its 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * contributors may be used to endorse or promote products derived from 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * this software without specific prior written permission. 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#ifndef FileReader_h 325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#define FileReader_h 335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/dom/ActiveDOMObject.h" 3506f816c7c76bc45a15e452ade8a34e8af077693eTorne (Richard Coles)#include "core/events/EventTarget.h" 3653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/fileapi/FileError.h" 3753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/fileapi/FileReaderLoader.h" 3853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/fileapi/FileReaderLoaderClient.h" 39f91f5fa1608c2cdd9af1842fb5dadbe78275be2aBo Liu#include "platform/heap/Handle.h" 40e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch#include "wtf/Forward.h" 41e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch#include "wtf/RefCounted.h" 42e69819bd8e388ea4ad1636a19aa6b2eed4952191Ben Murdoch#include "wtf/text/WTFString.h" 435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 44c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles)namespace blink { 455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)class Blob; 47df95704c49daea886ddad70775bda23618d6274dBen Murdochclass ExceptionState; 481e202183a5dc46166763171984b285173f8585e5Torne (Richard Coles)class ExecutionContext; 495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 50197021e6b966cfb06891637935ef33fff06433d1Ben Murdochclass FileReader FINAL : public RefCountedWillBeGarbageCollectedFinalized<FileReader>, public ActiveDOMObject, public FileReaderLoaderClient, public EventTargetWithInlineData { 517242dc3dbeb210b5e876a3c42d1ec1a667fc621aPrimiano Tucci DEFINE_WRAPPERTYPEINFO(); 529e12abdf8c3a23d52091ea54ebb6a04d327f9300Torne (Richard Coles) REFCOUNTED_EVENT_TARGET(FileReader); 53d6cdb82654e8f3343a693ca752d5c4cee0324e17Torne (Richard Coles) WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(FileReader); 545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)public: 55d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) static PassRefPtrWillBeRawPtr<FileReader> create(ExecutionContext*); 565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) virtual ~FileReader(); 585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) enum ReadyState { 605c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) EMPTY = 0, 615c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) LOADING = 1, 625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) DONE = 2 635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) }; 645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 65df95704c49daea886ddad70775bda23618d6274dBen Murdoch void readAsArrayBuffer(Blob*, ExceptionState&); 66df95704c49daea886ddad70775bda23618d6274dBen Murdoch void readAsBinaryString(Blob*, ExceptionState&); 67df95704c49daea886ddad70775bda23618d6274dBen Murdoch void readAsText(Blob*, const String& encoding, ExceptionState&); 68df95704c49daea886ddad70775bda23618d6274dBen Murdoch void readAsText(Blob*, ExceptionState&); 69df95704c49daea886ddad70775bda23618d6274dBen Murdoch void readAsDataURL(Blob*, ExceptionState&); 705c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) void abort(); 715c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) void doAbort(); 735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 745c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ReadyState readyState() const { return m_state; } 75d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) PassRefPtrWillBeRawPtr<FileError> error() { return m_error; } 765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) FileReaderLoader::ReadType readType() const { return m_readType; } 775c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) PassRefPtr<ArrayBuffer> arrayBufferResult() const; 785c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) String stringResult(); 795c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 805c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // ActiveDOMObject 8109380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) virtual void stop() OVERRIDE; 82197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch virtual bool hasPendingActivity() const OVERRIDE; 835c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 845c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // EventTarget 851e202183a5dc46166763171984b285173f8585e5Torne (Richard Coles) virtual const AtomicString& interfaceName() const OVERRIDE; 861e202183a5dc46166763171984b285173f8585e5Torne (Richard Coles) virtual ExecutionContext* executionContext() const OVERRIDE { return ActiveDOMObject::executionContext(); } 875c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 885c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // FileReaderLoaderClient 8909380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) virtual void didStartLoading() OVERRIDE; 9009380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) virtual void didReceiveData() OVERRIDE; 9109380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) virtual void didFinishLoading() OVERRIDE; 9209380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) virtual void didFail(FileError::ErrorCode) OVERRIDE; 935c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 945c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) DEFINE_ATTRIBUTE_EVENT_LISTENER(loadstart); 955c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) DEFINE_ATTRIBUTE_EVENT_LISTENER(progress); 965c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) DEFINE_ATTRIBUTE_EVENT_LISTENER(load); 975c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) DEFINE_ATTRIBUTE_EVENT_LISTENER(abort); 985c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) DEFINE_ATTRIBUTE_EVENT_LISTENER(error); 995c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) DEFINE_ATTRIBUTE_EVENT_LISTENER(loadend); 1005c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 101d6cdb82654e8f3343a693ca752d5c4cee0324e17Torne (Richard Coles) virtual void trace(Visitor*) OVERRIDE; 102d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) 1035c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)private: 104197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch explicit FileReader(ExecutionContext*); 105a854de003a23bf3c7f95ec0f8154ada64092ff5cTorne (Richard Coles) 106197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch class ThrottlingController; 1075c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1085c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) void terminate(); 109df95704c49daea886ddad70775bda23618d6274dBen Murdoch void readInternal(Blob*, FileReaderLoader::ReadType, ExceptionState&); 1105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) void fireEvent(const AtomicString& type); 1115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 112a854de003a23bf3c7f95ec0f8154ada64092ff5cTorne (Richard Coles) void executePendingRead(); 113a854de003a23bf3c7f95ec0f8154ada64092ff5cTorne (Richard Coles) 1145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ReadyState m_state; 1158abfc5808a4e34d6e03867af8bc440dee641886fTorne (Richard Coles) 1168abfc5808a4e34d6e03867af8bc440dee641886fTorne (Richard Coles) // Internal loading state, which could differ from ReadyState as it's 1178abfc5808a4e34d6e03867af8bc440dee641886fTorne (Richard Coles) // for script-visible state while this one's for internal state. 1188abfc5808a4e34d6e03867af8bc440dee641886fTorne (Richard Coles) enum LoadingState { 1198abfc5808a4e34d6e03867af8bc440dee641886fTorne (Richard Coles) LoadingStateNone, 120a854de003a23bf3c7f95ec0f8154ada64092ff5cTorne (Richard Coles) LoadingStatePending, 1218abfc5808a4e34d6e03867af8bc440dee641886fTorne (Richard Coles) LoadingStateLoading, 1228abfc5808a4e34d6e03867af8bc440dee641886fTorne (Richard Coles) LoadingStateAborted 1238abfc5808a4e34d6e03867af8bc440dee641886fTorne (Richard Coles) }; 1248abfc5808a4e34d6e03867af8bc440dee641886fTorne (Richard Coles) LoadingState m_loadingState; 1258abfc5808a4e34d6e03867af8bc440dee641886fTorne (Richard Coles) 126d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) String m_blobType; 127d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) RefPtr<BlobDataHandle> m_blobDataHandle; 1285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) FileReaderLoader::ReadType m_readType; 1295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) String m_encoding; 1305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) OwnPtr<FileReaderLoader> m_loader; 132d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) RefPtrWillBeMember<FileError> m_error; 1335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) double m_lastProgressNotificationTimeMS; 134c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles) int m_asyncOperationId; 1355c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)}; 1365c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 137c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles)} // namespace blink 1385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1395c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#endif // FileReader_h 140