D23773: Observe title tag only if there actually is a player

[Kai Uwe Broulik]

broulik created this revision.
broulik added reviewers: Plasma, fvogt, ognarb.
Herald added a project: Plasma.
Herald added a subscriber: plasma-devel.
broulik requested review of this revision.

TEST PLAN
  Noticed that I got title changes sent to the extension every time
  
  - Opened an ajax-navigating website, didnt get any title changes notified
  - Opened a player, title change observer was connected once. Player dsappeared, observer disappered
  - Verified that title change with player (e.g. spotify web player) still propagates correctly

REPOSITORY
  R856 Plasma Browser Integration

REVISION DETAIL
  https://phabricator.kde.org/D23773

AFFECTED FILES
  extension/content-script.js

To: broulik, #plasma, fvogt, ognarb
Cc: plasma-devel, LeGast00n, The-Feren-OS-Dev, jraleigh, fbampaloukas, GB_2, ragreen, Pitel, ZrenBot, himcesjf, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart
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