[Bug 954312] Re: crash in toggle_top_level()

[Stéphane Graber]

Right, it's actually not an ubiquity bug, marking as Invalid.

You can't use gobject or gst in an ubiquity plugin because they won't mix with pygi.
Instead you should use "from gi.repository import Gst, Gobject" or something along those lines.

Also, PageGtk should only be doing the initialisation of the UI, not run anything at this point.
You should instead move the code actually starting the video and doing the toggle_top_level to the Prepare() function of the "Page" class.

self.page of PageGtk also needs to be set to the UI of your step or
it'll be skipped.

I tend to use ubi-prepare.py as an example for other steps.

** Changed in: ubiquity (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/954312

Title:
  crash in toggle_top_level()

Status in “ubiquity” package in Ubuntu:
  Invalid

Bug description:
  ubiquity-2.9.27

  I am working on a ubiquity plugin for oem-config and I ran into a
  problem when calling "self.controller.toggle_top_level()"

  The installer will crash and  message I get from the oem-config.log
  is:

    File "/usr/lib/ubiquity/ubiquity/frontend/gtk_ui.py", line 126, in toggle_top_level
      if self._wizard.live_installer.get_property('visible'):
  AttributeError: Wizard instance has no attribute 'live_installer'

  The plugin is supposed play a video during oem-config at first boot,
  and it was recommended to use toggle_top_level before and after the
  video plays.  I can't tell if the plugin works due to the crash above.

  I was told that this might have been something that broke in ubiquity
  when converting to GTK3 that wasn't noticed since no plugins are
  currently taking advantage of that function (except this one).

  I will attach my plugin sample code as well as the oem-config log.

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