diff main/Surveyer.cpp @ 333:faff9cd8f663

* Offer the user a chance to answer our survey (only once, and only after
  several runs of the program, and only if the survey is known to be live on
  the website)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main/Surveyer.cpp	Thu Aug 27 16:31:45 2009 +0000
@@ -0,0 +1,146 @@
+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Sonic Visualiser
+    An audio file viewer and annotation editor.
+    Centre for Digital Music, Queen Mary, University of London.
+    
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+    published by the Free Software Foundation; either version 2 of the
+    License, or (at your option) any later version.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+/*
+   This is a modified version of a source file from the 
+   Rosegarden MIDI and audio sequencer and notation editor.
+   This file copyright 2000-2009 Chris Cannam.
+*/
+
+#include "Surveyer.h"
+
+#include <iostream>
+
+#include <QHttp>
+
+#include <QSettings>
+#include <QMessageBox>
+#include <QDesktopServices>
+#include <QPushButton>
+#include <QUrl>
+
+#include "version.h"
+
+#include "transform/TransformFactory.h"
+#include "plugin/PluginIdentifier.h"
+
+Surveyer::Surveyer(QObject *parent) :
+    QObject(parent),
+    m_httpFailed(false)
+{
+    QSettings settings;
+    settings.beginGroup("Survey");
+    if (!settings.contains("countdown")) {
+        settings.setValue("countdown", 5);
+        settings.endGroup();
+        return;
+    }
+    int countdown = settings.value("countdown").toInt();
+    if (countdown == 0) {
+        // The countdown value will now remain 0 until we have
+        // successfully tested for a survey and offered it to the
+        // user.  If the survey doesn't exist any more, then we'll
+        // simply never present it to the user and the countdown will
+        // remain 0 forever.  If the survey does exist, then we offer
+        // the user the chance to respond to it and (regardless of
+        // whether they want to or not) set the countdown to -1 so
+        // that it is never offered again.
+        QHttp *http = new QHttp();
+        connect(http, SIGNAL(responseHeaderReceived(const QHttpResponseHeader &)),
+                this, SLOT(httpResponseHeaderReceived(const QHttpResponseHeader &)));
+        connect(http, SIGNAL(done(bool)),
+                this, SLOT(httpDone(bool)));
+        http->setHost("sonicvisualiser.org");
+        http->get("/survey16-present.txt");
+    } else if (countdown > 0) {
+        settings.setValue("countdown", countdown-1);
+    }
+    settings.endGroup();
+}
+
+Surveyer::~Surveyer()
+{
+}
+
+void
+Surveyer::httpResponseHeaderReceived(const QHttpResponseHeader &h)
+{
+    if (h.statusCode() / 100 != 2) m_httpFailed = true;
+}
+
+void
+Surveyer::httpDone(bool error)
+{
+    QHttp *http = const_cast<QHttp *>(dynamic_cast<const QHttp *>(sender()));
+    if (!http) return;
+    http->deleteLater();
+//    if (error || m_httpFailed) return;
+
+    QByteArray responseData = http->readAll();
+    QString str = QString::fromUtf8(responseData.data());
+    QStringList lines = str.split('\n', QString::SkipEmptyParts);
+    if (lines.empty()) return;
+
+    QString response = lines[0];
+//    if (response != "yes") return;
+
+    QString title = "Sonic Visualiser - User Survey";
+    QString text = "<h3>Sonic Visualiser: Take part in our survey!</h3><p>We at Queen Mary, University of London are running a short survey for users of Sonic Visualiser.  We are trying to find out how useful Sonic Visualiser is to people, and what we can do to improve it.</p><p>We do not ask for any personal information, and there's absolutely nothing commercial about it, and it should only take five minutes!</p><p>Would you like to take part?</p>";
+
+    QMessageBox mb(dynamic_cast<QWidget *>(parent()));
+    mb.setWindowTitle(title);
+    mb.setText(text);
+
+    QPushButton *yes = mb.addButton(tr("Yes! Take me to the survey"), QMessageBox::ActionRole);
+    mb.addButton(tr("No thanks"), QMessageBox::RejectRole);
+
+    mb.exec();
+
+    if (mb.clickedButton() == yes) {
+        QString svarg = SV_VERSION;
+        QString platformarg = "unknown";
+#ifdef _WIN32
+        platformarg = "win32";
+#else
+#ifdef __APPLE__
+        platformarg = "osx";
+#else
+        platformarg = "posix";
+#endif
+#endif
+        QString plugsarg;
+        TransformFactory *tf = TransformFactory::getInstance();
+        if (tf) {
+            TransformList tl = tf->getAllTransformDescriptions();
+            std::set<QString> packages;
+            for (size_t i = 0; i < tl.size(); ++i) {
+                TransformId id = tl[i].identifier;
+                Transform t;
+                t.setIdentifier(id);
+                QString plugid = t.getPluginIdentifier();
+                QString type, soname, label;
+                PluginIdentifier::parseIdentifier(plugid, type, soname, label);
+                packages.insert(soname);
+            }
+            for (std::set<QString>::const_iterator i = packages.begin();
+                 i != packages.end(); ++i) {
+                if (plugsarg != "") plugsarg = plugsarg + ",";
+                plugsarg = plugsarg + *i;
+            }
+        }
+        QDesktopServices::openUrl(QUrl(QString("http://sonicvisualiser.org/survey16.php?sv=%1&plugs=%2&platform=%3").arg(svarg).arg(plugsarg).arg(platformarg)));
+    }
+}
+
+