Review Request: wetter.com Weather Ion

[Thilo-Alexander Ginkel]

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http://reviewboard.kde.org/r/2026/
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Review request for kdelibs, Plasma and Shawn Starr.


Summary
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This change brings support for wetter.com (a weather forecast web site especially popular in Germany) as a weather data source to KDE.
The Ion makes use of wetter.com's officially-supported REST API. The API supports forecasts for up to three days, so the Ion does not supply any information about the current weather conditions. The forecast for the current day is split between night and day whereas the following two days are provided as an aggregated value for the whole day, respectively. 

Any feedback is much appreciated!


This addresses bug 204219.
    https://bugs.kde.org/show_bug.cgi?id=204219


Diffs
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  /trunk/kdereview/plasma/dataengines/CMakeLists.txt 1043003 
  /trunk/kdereview/plasma/dataengines/weather/CMakeLists.txt PRE-CREATION 
  /trunk/kdereview/plasma/dataengines/weather/ions/CMakeLists.txt PRE-CREATION 
  /trunk/kdereview/plasma/dataengines/weather/ions/ion-wettercom.desktop PRE-CREATION 
  /trunk/kdereview/plasma/dataengines/weather/ions/ion_wettercom.h PRE-CREATION 
  /trunk/kdereview/plasma/dataengines/weather/ions/ion_wettercom.cpp PRE-CREATION 

Diff: http://reviewboard.kde.org/r/2026/diff


Testing
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Tested the Ion under a current KDE installation from trunk, fixed all Krazy warnings before the move to kdereview. Profiled it for memory leaks using Valgrind, which did not bring up any leaks in the control of the Ion. Those two still look somewhat suspicious, so I'd like to get your opinion about them:

42 bytes in 1 blocks are definitely lost in loss record 372 of 1,156
   at 0x4C25153: malloc (vg_replace_malloc.c:195)
   by 0x60EDCB4: QString::QString(int, Qt::Initialization) (qstring.cpp:1027)
   by 0x61BD5EE: QUtf8::convertToUnicode(char const*, int, QTextCodec::ConverterState*) (qutfcodec.cpp:169)
   by 0x60EFDFA: QString::fromUtf8(char const*, int) (qstring.cpp:3850)
   by 0x614C052: fromPercentEncodingMutable(QByteArray*) (qurl.cpp:223)
   by 0x614EFB3: QUrlPrivate::parse(QUrlPrivate::ParseOptions) const (qurl.cpp:3781)
   by 0x61534FE: QUrl::isValid() const (qurl.cpp:4124)
   by 0x5A23B5A: KUrl::_setEncodedUrl(QByteArray const&) (kurl.cpp:1538)
   by 0x5A23F19: KUrl::KUrl(QString const&) (kurl.cpp:411)
   by 0x1FAE37D6: WetterComIon::getForecast(QString const&) (ion_wettercom.cpp:504)
   by 0x1FAE5BAA: WetterComIon::updateIonSource(QString const&) (ion_wettercom.cpp:320)
   by 0x1F267CBE: IonInterface::sourceRequestEvent(QString const&) (ion.cpp:47)

176 (32 direct, 144 indirect) bytes in 1 blocks are definitely lost in loss record 882 of 1,156
   at 0x4C2596C: operator new(unsigned long) (vg_replace_malloc.c:220)
   by 0x1F267795: IonInterface::IonInterface(QObject*, QList<QVariant> const&) (ion.cpp:36)
   by 0x1FAE151D: WetterComIon::WetterComIon(QObject*, QList<QVariant> const&) (ion_wettercom.cpp:68)
   by 0x1FAEE366: QObject* KPluginFactory::createInstance<WetterComIon, QObject>(QWidget*, QObject*, QList<QVariant> const&) (kpluginfactory.h:461)
   by 0x5B3367B: KPluginFactory::create(char const*, QWidget*, QObject*, QList<QVariant> const&, QString const&) (kpluginfactory.cpp:191)
   by 0x5594EB5: Plasma::DataEngineManager::loadEngine(QString const&) (kpluginfactory.h:515)
   by 0x1F6C813F: WeatherEngine::loadIon(QString const&) (weatherengine.cpp:92)
   by 0x1F6C8C7C: WeatherEngine::sourceRequestEvent(QString const&) (weatherengine.cpp:226)
   by 0x55913AC: Plasma::DataEnginePrivate::requestSource(QString const&, bool*) (dataengine.cpp:670)
   by 0x5591421: Plasma::DataEngine::connectSource(QString const&, QObject*, unsigned int, Plasma::IntervalAlignment) const (dataengine.cpp:89)
   by 0x1F05608D: WeatherPopupApplet::connectToEngine() (weatherpopupapplet.cpp:234)
   by 0x1F05815E: WeatherPopupApplet::init() (weatherpopupapplet.cpp:223)


Thanks,

Thilo-Alexander