D18497: Disable KCMs while downloading file

[Kai Uwe Broulik]

broulik created this revision.
broulik added a reviewer: Plasma.
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REVISION SUMMARY
  When dropping or choosing a remote file, it is downloaded to a temporary location for installation.
  Disable the KCM while this is in progress to avoid confusion as to what is happening.
  A job is spawned in notification area which is why no additional busy indicator is added to the KCM UI.

TEST PLAN
  Copied from color KCM

REPOSITORY
  R119 Plasma Desktop

REVISION DETAIL
  https://phabricator.kde.org/D18497

AFFECTED FILES
  kcms/cursortheme/kcmcursortheme.cpp
  kcms/cursortheme/kcmcursortheme.h
  kcms/cursortheme/package/contents/ui/main.qml
  kcms/icons/main.cpp
  kcms/icons/main.h
  kcms/icons/package/contents/ui/main.qml

To: broulik, #plasma
Cc: plasma-devel, jraleigh, GB_2, ragreen, Pitel, ZrenBot, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart
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