D6615: Simplify Alternatives Dialog code

[David Edmundson]

davidedmundson created this revision.
Restricted Application added a project: Plasma.
Restricted Application added a subscriber: plasma-devel.

REVISION SUMMARY
  Replace QObject::sender() and tracking objects in a list with a simple lambda.

TEST PLAN
  Opened and closed dialog.

REPOSITORY
  R120 Plasma Workspace

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D6615

AFFECTED FILES
  shell/shellcorona.cpp
  shell/shellcorona.h

To: davidedmundson, #plasma
Cc: plasma-devel, ZrenBot, progwolff, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart, lukas
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