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author | Gareth Stockwell <ext-gareth.stockwell@nokia.com> | 2010-09-28 10:01:20 (GMT) |
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committer | Gareth Stockwell <ext-gareth.stockwell@nokia.com> | 2010-10-01 10:33:24 (GMT) |
commit | 1f14df23bf0e593c31efc846c13f11afb0fad6b8 (patch) | |
tree | 54e67b5497ed1b61b3c597e821c7d3ca2cb61f3a /src/3rdparty | |
parent | 55bf3ab3fb5591544e1f6a7996d5fdedb8e699c9 (diff) | |
download | Qt-1f14df23bf0e593c31efc846c13f11afb0fad6b8.zip Qt-1f14df23bf0e593c31efc846c13f11afb0fad6b8.tar.gz Qt-1f14df23bf0e593c31efc846c13f11afb0fad6b8.tar.bz2 |
Progressive download in Phonon MMF backend: added download managers
This patch adds a Download class which uses the RHttpDownloadMgr
API to download a media clip over HTTP.
Task-number: QTBUG-10769
Reviewed-by: Derick Hawcroft
Diffstat (limited to 'src/3rdparty')
-rw-r--r-- | src/3rdparty/phonon/mmf/download.cpp | 194 | ||||
-rw-r--r-- | src/3rdparty/phonon/mmf/download.h | 111 |
2 files changed, 305 insertions, 0 deletions
diff --git a/src/3rdparty/phonon/mmf/download.cpp b/src/3rdparty/phonon/mmf/download.cpp new file mode 100644 index 0000000..7b80e4a --- /dev/null +++ b/src/3rdparty/phonon/mmf/download.cpp @@ -0,0 +1,194 @@ +/* This file is part of the KDE project. + +Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). + +This library is free software: you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation, either version 2.1 or 3 of the License. + +This library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License +along with this library. If not, see <http://www.gnu.org/licenses/>. + +*/ + +#include "download.h" +#include "utils.h" +#include <QtCore/QDir> +#include <QtCore/private/qcore_symbian_p.h> + +QT_BEGIN_NAMESPACE + +using namespace Phonon; +using namespace Phonon::MMF; + +static const TBool InheritDownloads = EFalse; + +DownloadPrivate::DownloadPrivate(Download *parent) + : QObject(parent) + , m_parent(parent) + , m_download(0) + , m_length(0) +{ + +} + +DownloadPrivate::~DownloadPrivate() +{ + m_downloadManager.Disconnect(); + m_downloadManager.Close(); +} + +bool DownloadPrivate::start() +{ + TRACE_CONTEXT(DownloadPrivate::start, EVideoApi); + Q_ASSERT(!m_download); + // Connect to download manager + RProcess process; + const TUid uid3 = process.SecureId(); + TRAPD(err, m_downloadManager.ConnectL(uid3, *this, InheritDownloads)); + TRACE("connect err %d", err); + if (KErrNone == err) { + // Start download + QHBufC url(m_parent->sourceUrl().toString()); + TPtr8 url8 = url->Des().Collapse(); + TRAP(err, m_download = &m_downloadManager.CreateDownloadL(url8)); + TRACE("start err %d", err); + if (KErrNone == err) + m_download->Start(); + } + return (KErrNone == err); +} + +void DownloadPrivate::resume() +{ + +} + +void DownloadPrivate::HandleDMgrEventL(RHttpDownload &aDownload, THttpDownloadEvent aEvent) +{ + TRACE_CONTEXT(DownloadPrivate::HandleDMgrEventL, EVideoApi); + Q_ASSERT(&aDownload == m_download); + switch (aEvent.iDownloadState) { + case EHttpDlPaused: + if (EHttpContentTypeReceived == aEvent.iProgressState) { + TRACE_0("paused, content type received"); + m_download->Start(); + } + break; + case EHttpDlInprogress: + switch (aEvent.iProgressState) { + case EHttpProgResponseHeaderReceived: + { + TFileName fileName; + m_download->GetStringAttribute(EDlAttrDestFilename, fileName); + TRACE("in progress, response header received, filename %S", &fileName); + const QString fileNameQt = QDir::fromNativeSeparators(qt_TDesC2QString(fileName)); + m_parent->downloadStarted(fileNameQt); + } + break; + case EHttpProgResponseBodyReceived: + { + TInt32 length = 0; + m_download->GetIntAttribute(EDlAttrDownloadedSize, length); + if (length != m_length) { + TRACE("in progress, length %d", length); + m_length = length; + emit lengthChanged(m_length); + } + } + break; + } + break; + case EHttpDlCompleted: + TRACE_0("complete"); + m_parent->complete(); + break; + case EHttpDlFailed: + TRACE_0("failed"); + m_parent->error(); + break; + } +} + +Download::Download(const QUrl &url, QObject *parent) + : QObject(parent) + , m_private(new DownloadPrivate(this)) + , m_sourceUrl(url) + , m_state(Idle) +{ + qRegisterMetaType<Download::State>(); + connect(m_private, SIGNAL(lengthChanged(qint64)), this, SIGNAL(lengthChanged(qint64))); +} + +Download::~Download() +{ + +} + +const QUrl &Download::sourceUrl() const +{ + return m_sourceUrl; +} + +const QString &Download::targetFileName() const +{ + return m_targetFileName; +} + +void Download::start() +{ + TRACE_CONTEXT(Download::start, EVideoApi); + TRACE_ENTRY_0(); + Q_ASSERT(Idle == m_state); + const bool ok = m_private->start(); + setState(ok ? Initializing : Error); + TRACE_EXIT_0(); +} + +void Download::resume() +{ + TRACE_CONTEXT(Download::resume, EVideoApi); + TRACE_ENTRY_0(); + m_private->resume(); + TRACE_EXIT_0(); +} + +void Download::setState(State state) +{ + TRACE_CONTEXT(Download::setState, EVideoApi); + TRACE("oldState %d newState %d", m_state, state); + const State oldState = m_state; + m_state = state; + if (oldState != m_state) + emit stateChanged(m_state); +} + +void Download::error() +{ + TRACE_CONTEXT(Download::error, EVideoApi); + TRACE_0(""); + setState(Error); +} + +void Download::downloadStarted(const QString &targetFileName) +{ + TRACE_CONTEXT(Download::downloadStarted, EVideoApi); + TRACE_0("downloadStarted"); + m_targetFileName = targetFileName; + setState(Downloading); +} + +void Download::complete() +{ + TRACE_CONTEXT(Download::complete, EVideoApi); + TRACE_0(""); + setState(Complete); +} + +QT_END_NAMESPACE + diff --git a/src/3rdparty/phonon/mmf/download.h b/src/3rdparty/phonon/mmf/download.h new file mode 100644 index 0000000..b57348b --- /dev/null +++ b/src/3rdparty/phonon/mmf/download.h @@ -0,0 +1,111 @@ +/* This file is part of the KDE project. + +Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). + +This library is free software: you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation, either version 2.1 or 3 of the License. + +This library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License +along with this library. If not, see <http://www.gnu.org/licenses/>. + +*/ + +#ifndef PHONON_MMF_DOWNLOAD_H +#define PHONON_MMF_DOWNLOAD_H + +#include <QtCore/QMetaType> +#include <QtCore/QString> +#include <QtCore/QUrl> +#include <downloadmgrclient.h> + +QT_FORWARD_DECLARE_CLASS(QByteArray) +QT_FORWARD_DECLARE_CLASS(QFile) + +QT_BEGIN_NAMESPACE + +namespace Phonon +{ +namespace MMF +{ + +class Download; + +class DownloadPrivate : public QObject + , public MHttpDownloadMgrObserver +{ + Q_OBJECT +public: + DownloadPrivate(Download *parent); + ~DownloadPrivate(); + bool start(); + void resume(); +signals: + void error(); + void targetFileNameChanged(); + void lengthChanged(qint64 length); + void complete(); +private: + // MHttpDownloadMgrObserver + void HandleDMgrEventL(RHttpDownload &aDownload, THttpDownloadEvent aEvent); +private: + Download *m_parent; + RHttpDownloadMgr m_downloadManager; + RHttpDownload *m_download; + qint64 m_length; +}; + +class Download : public QObject +{ + Q_OBJECT + friend class DownloadPrivate; +public: + Download(const QUrl &url, QObject *parent = 0); + ~Download(); + const QUrl &sourceUrl() const; + const QString &targetFileName() const; + void start(); + + // Only has effect when QT_PHONON_MMF_DOWNLOAD_DUMMY is defined + void resume(); + + enum State { + Idle, + Initializing, + Downloading, + Complete, + Error + }; + +signals: + void lengthChanged(qint64 length); + void stateChanged(Download::State state); + +private: + void setState(State state); + + // Called by DownloadPrivate + void error(); + void downloadStarted(const QString &targetFileName); + void complete(); + +private: + DownloadPrivate *m_private; + QUrl m_sourceUrl; + QString m_targetFileName; + State m_state; +}; + +} +} + +QT_END_NAMESPACE + +Q_DECLARE_METATYPE(Phonon::MMF::Download::State) + +#endif |