[Bug 1187762] Re: [ubiquity-frontend-kde] language drop down list closes on first click

[Eike Hein]

Hi,

I had a look, and it appears that this is due to a rather complex race
condition in QComboBox' mouse handling code. The attached patch manages
to avoid this race condition by vastly reducing the amount of work the
UI has to do to layout its popup by informing the list view that it can
assume all its items to be of uniform size.

** Patch added: "Fix open on initial click by avoiding race condition"
   https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1187762/+attachment/3697796/+files/ubiquity-language-plugin-fix-combobox-open-on-initial-click.patch

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https://bugs.launchpad.net/bugs/1187762

Title:
  [ubiquity-frontend-kde] language drop down list closes on first click

Status in “ubiquity” package in Ubuntu:
  New

Bug description:
  [ Steps to Reproduce ]

  * Boot Kubuntu ISO ( Raring / Latest Saucy )
  * Hit "Try Kubuntu" to boot to the live session
  * Start the installer
  * Click on the language dropdown list, list appears and disappears quickly
  * Click on list again, list appears fine.

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