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authorGareth Stockwell <ext-gareth.stockwell@nokia.com>2010-09-28 10:01:20 (GMT)
committerGareth Stockwell <ext-gareth.stockwell@nokia.com>2010-10-08 08:55:54 (GMT)
commitfcf4b598a169b336344393958f67320f5f9652ce (patch)
tree03f50eec59537d8c760151c4bd2fe53878c8e0e6 /src/3rdparty
parent46822d7091ef05e64e363e7209ea3e613e4d386d (diff)
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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.cpp194
-rw-r--r--src/3rdparty/phonon/mmf/download.h111
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