Fixed a bug where the alarm wouldnt stop, even after answering the card.

[pedro-volpi]

Description

The default audio for Speed Focus Mode addon is very short. Trying out larger files, a problem arises: the audio keeps playing for a while, even after you have pressed any of the buttons (e.g. again, etc).

The problema was the play() function from the anki.sound package. The fix is simple: replace the play() function with an AVPlayer instance (which is what 'play' calls) and call its stop_and_clear_queue() method when the question timeouts are cleared (i.e. inside clearQuestionTimeouts).

Checklist:

Please replace the space inside the brackets with an x and fill out the ellipses if the following items apply:

• I've read and understood the contribution guidelines
• I've tested my changes against at least one of the following Anki builds:
  • Latest standard Anki 2.1 binary build [required for Anki-compatible 2.1 add-ons]
  • Latest alternative Anki 2.1 binary build
  • Latest Anki 2.0 binary build [required for Anki 2.0-compatible add-ons]
• I've tested my changes on at least one of the following platforms:
  • Linux, version:
  • Windows, version: 10
  • macOS, version:
• My changes potentially affect non-desktop platforms, of which I've tested:
  • AnkiMobile, version:
  • AnkiDroid, version:
  • AnkiWeb