[Differential] [Request, 24 lines] D4344: Delay setting the model on the view until listing is finished.

[Eike Hein]

hein created this revision.
hein added a reviewer: Plasma.
hein added a subscriber: plasma-devel.
hein added a dependency: D4343: Greatly improve Folder View performance and mem usage..
Restricted Application added a project: Plasma.

REVISION SUMMARY
  This massively cuts down on churn when instanciating a Folder View
  configured to a large folder as the changing data set causes the
  view to do a large amount of costly work.
  
  A 7x6 Folder View pointed at /usr/bin would block Plasma during
  startup for anywhere between 1-4 seconds depending on disk caches
  (on a SSD). Now startup is hitch free, and even listing completes
  much faster without the view slowing things down.
  
  The widget is set to busy while listing.
  
  Depends on https://phabricator.kde.org/D4343.

REPOSITORY
  R119 Plasma Desktop

BRANCH
  hein/fastFolders

REVISION DETAIL
  https://phabricator.kde.org/D4344

AFFECTED FILES
  containments/desktop/package/contents/ui/AppletAppearance.qml
  containments/desktop/package/contents/ui/FolderView.qml
  containments/desktop/plugins/folder/foldermodel.cpp
  containments/desktop/plugins/folder/foldermodel.h

EMAIL PREFERENCES
  https://phabricator.kde.org/settings/panel/emailpreferences/

To: hein, #plasma
Cc: plasma-devel, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas
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