[Bug 1560404] Re: Live session desktop uses to small folder view widget

[Philip Muškovac]

** Description changed:

+ [Impact]
+ Thanks to bad event timing during the size calculation the folderview widget has a very small size when added to the desktop instead of the recommended size. This makes it unusable unless you manually resize it.
+ We use the folderview widget to display the installer icon on the live image, which makes the installer almost invisible as you can see on the screenshot.
+ 
+ [Test Case]
+ This can be tested on any installed system and doesn't require an updated image.
+ - Try adding a folderview widget to your desktop by right clicking on the desktop -> Add Widgets -> select Folder View from the list.
+ - it will have a very small size and usually show part of an icon (see attached screenshot)
+ - install libkf5plasma5 and libkf5plasmaquick5 from proposed
+ - restart plasma using Alt+F2 and running 'kquitapp plasmashell; plasmashell'
+ or by restarting your login session.
+ - Try adding a folderview widget again using above steps
+ - it should now be large enough to show 2 rows, 3 columns of icons.
+ 
+ [Regression potential]
+ The patch has been recommended by upstream, has not caused any direct regressions and no misbehaving widgets have been found by just adding this patch.
+ 
+ [Original Description]
  Description: Ubutnu Xenial Xerus (development branch)
  Release: 16.04
  
  kubuntu-settings-desktop
  Installed: 1:16.04ubuntu2
  Candidate: 1:16.04ubuntu2
  
  I we run live session either from USB or in virtual machine then the
  default Folder View widget with installation icon inside is rendered in
  small size, making the mentioned icon almost invisible (see attached
  screenshot). This widget size should be changed to make the whole icon
  inside visible.

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https://bugs.launchpad.net/bugs/1560404

Title:
  Live session desktop uses to small folder view widget

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