1 /* 2 Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies) 3 4 This library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Library General Public 6 License as published by the Free Software Foundation; either 7 version 2 of the License, or (at your option) any later version. 8 9 This library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Library General Public License for more details. 13 14 You should have received a copy of the GNU Library General Public License 15 along with this library; see the file COPYING.LIB. If not, write to 16 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 17 Boston, MA 02110-1301, USA. 18 */ 19 #ifndef QNETWORKREPLYHANDLER_H 20 #define QNETWORKREPLYHANDLER_H 21 22 #include <QObject> 23 24 #if QT_VERSION >= 0x040400 25 26 #include <QNetworkRequest> 27 #include <QNetworkAccessManager> 28 29 #include "FormData.h" 30 31 QT_BEGIN_NAMESPACE 32 class QFile; 33 class QNetworkReply; 34 QT_END_NAMESPACE 35 36 namespace WebCore { 37 38 class ResourceHandle; 39 40 class QNetworkReplyHandler : public QObject 41 { 42 Q_OBJECT 43 public: 44 enum LoadMode { 45 LoadNormal, 46 LoadDeferred, 47 LoadResuming 48 }; 49 50 QNetworkReplyHandler(ResourceHandle *handle, LoadMode); 51 void setLoadMode(LoadMode); 52 reply()53 QNetworkReply* reply() const { return m_reply; } 54 55 void abort(); 56 57 QNetworkReply* release(); 58 59 signals: 60 void processQueuedItems(); 61 62 private slots: 63 void finish(); 64 void sendResponseIfNeeded(); 65 void forwardData(); 66 void sendQueuedItems(); 67 68 private: 69 void start(); 70 void resetState(); 71 72 QNetworkReply* m_reply; 73 ResourceHandle* m_resourceHandle; 74 bool m_redirected; 75 bool m_responseSent; 76 LoadMode m_loadMode; 77 QNetworkAccessManager::Operation m_method; 78 QNetworkRequest m_request; 79 80 // defer state holding 81 bool m_shouldStart; 82 bool m_shouldFinish; 83 bool m_shouldSendResponse; 84 bool m_shouldForwardData; 85 }; 86 87 // Self destructing QIODevice for FormData 88 // For QNetworkAccessManager::put we will have to gurantee that the 89 // QIODevice is valid as long finished() of the QNetworkReply has not 90 // been emitted. With the presence of QNetworkReplyHandler::release I do 91 // not want to gurantee this. 92 class FormDataIODevice : public QIODevice { 93 Q_OBJECT 94 public: 95 FormDataIODevice(FormData*); 96 ~FormDataIODevice(); 97 98 void setParent(QNetworkReply*); 99 bool isSequential() const; 100 101 protected: 102 qint64 readData(char*, qint64); 103 qint64 writeData(const char*, qint64); 104 105 private Q_SLOTS: 106 void slotFinished(); 107 108 private: 109 void moveToNextElement(); 110 111 private: 112 Vector<FormDataElement> m_formElements; 113 QFile* m_currentFile; 114 qint64 m_currentDelta; 115 }; 116 117 } 118 119 #endif 120 121 #endif // QNETWORKREPLYHANDLER_H 122