D7181: [Task Manager] Elide context menu entries

[Kai Uwe Broulik]

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

REVISION SUMMARY
  QMenu doesn't really support maximumWidth. The window's size would be limited but its content just cut off rather than nicely elided.
  Instead, we manually elide in a crude way using TextMetrics.

TEST PLAN
  Superseds https://phabricator.kde.org/D4281
  
  Opened a file with a super long file name in kwrite, no longer caused the menu to become huge

REPOSITORY
  R119 Plasma Desktop

REVISION DETAIL
  https://phabricator.kde.org/D7181

AFFECTED FILES
  applets/taskmanager/package/contents/code/layout.js
  applets/taskmanager/package/contents/ui/ContextMenu.qml

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