hapticsplayer: Audio does not pause when pressing Play/Pause during playing.

https://qtrequirements.nokia.troll.no/browse/MOBILITY-3078

How to reproduce
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1.Launch hapticsplayer application.
2.Open an audio file.
3.Press "Play/pause" button. (Audio is playing)
4.Press "Play/pause" button again before the audio is completed.

Expected result
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The playing audio should be paused.

Actual result
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Nothing happens and the audio is still playing.

Other info
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Exit hapticsplayer application when the audio is playing, but we hear the audio is continue to play although there's no open applications.