[Bug 796525] [NEW] Checking/unchecking any add-on checkbox moves them all

[Matthew Paul Thomas]

Public bug reported:

Binary package hint: software-center

Ubuntu Software Center 4.0.3, Ubuntu 11.04

1. Navigate to any item that has add-ons, e.g. Inkscape.
2. Check or uncheck any of the add-ons.
3. Uncheck or check it to return it to its previous state.

What happens:
2. The checkbox, and all the other add-on checkboxes, jump downwards.
3. All the add-on checkboxes jump upwards again.

What should happen: All the checkboxes stay in the same place.

This is because the "Apply Changes" bar appears above the checkboxes. So that bar needs to do one of these:
- always be present
- have space reserved for it, even when it isn't present
- appear only below the list of add-ons, not above
- make the page expand upwards when it appears, not downwards, with the checkboxes staying in their current position.

** Affects: software-center (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/796525

Title:
  Checking/unchecking any add-on checkbox moves them all

Status in “software-center” package in Ubuntu:
  New

Bug description:
  Binary package hint: software-center

  Ubuntu Software Center 4.0.3, Ubuntu 11.04

  1. Navigate to any item that has add-ons, e.g. Inkscape.
  2. Check or uncheck any of the add-ons.
  3. Uncheck or check it to return it to its previous state.

  What happens:
  2. The checkbox, and all the other add-on checkboxes, jump downwards.
  3. All the add-on checkboxes jump upwards again.

  What should happen: All the checkboxes stay in the same place.

  This is because the "Apply Changes" bar appears above the checkboxes. So that bar needs to do one of these:
  - always be present
  - have space reserved for it, even when it isn't present
  - appear only below the list of add-ons, not above
  - make the page expand upwards when it appears, not downwards, with the checkboxes staying in their current position.

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