Use AdaptivePageLayout instead of PageStack in the GUI

I looked into this for a bit and didn't have much luck. The API for AdaptivePageLayout seems immature. Unlike in PageStack, APL requires much more manual maintenance of the historical pages. I've seen other applications handle this by keeping an array or pages called "FakePageStack" inside their APL implementation. Creating a chain of more than 2 pages seems to be quite difficult, though now impossible. For some reason, APL removes all Back buttons that Stack was able to auto-detect. APL does not deal very well with listviews that are side by side, and ends up with icons overlaying one another. APL also prevents the page parents from having appropriate heights set, which causes the need to reevaluate all of our heights.

The attachment "My work on this as a patch" seems to be a patch. If it isn't, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are a member of the ~ubuntu-reviewers, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issues please contact him.]

Fix committed into lp:libertine at revision 402, scheduled for release in libertine, milestone Unknown

This bug was fixed in the package libertine - 1.7+17.04.20170308-0ubuntu1

---------------
libertine (1.7+17.04.20170308-0ubuntu1) zesty; urgency=medium

  [ Chris Townsend ]
  * Fix libertined such that it can probe for currently running X apps and
    rebuild application running state. (LP: #1637579)
  * Gracefully handle the case where an application does not start.
    (LP: #1666177)
  * Kill the libertined service during the libertined package removal and
    upgrades (LP: #1667368)
  * Refactor package operation details into container operation details.
  * Allowing specifying multiple packages to be installed or removed.
    (LP: #1665647)
  * Show the current container state in the 'Status' section of the
    Container Info page in the UI. (LP: #1667726)
  * Add ability to configure stopping or freezing a container from within
    the UI. (LP: #1667717)
  * Bump version to 1.7.

  [ Larry Price ]
  * Prevent rewriting existing data in ContainersConfig. (LP: #1659115)
  * Prevent staging libertine files when installing dependencies and fix
    deprecations for the snap.
  * Use AdaptivePageLayout instead of PageStack for app navigation.
    (LP: #1550365) (LP: #1659076)
  * Refactor ContainersConfig handling from the GUI.
  * Prevent removing container from the database when destroy fails.
  * Various fixes for getting the confined snap working with libertined.
  * Remove /Progress objects from d-bus connection during cleanup.
  * LXD container status will override d-bus result during destroy only.
  * Implement GUI for adding and removing bind-mounts in containers.
  * Use a decorator to refresh the database during any libertined operations
    involving ContainersConfig.
  * Fix any broken symlinks in the local lxd rootfs during update and package
    installation. (LP: #1659646)
  * Update the default container type to lxd. (LP: #1665645)
  * Properly remove bind-mounted files in local rootfs during lxd destroy.
  * Add container hostname to /etc/hosts in lxd containers.
  * Add a force option for destroying running containers.

 -- Christopher Townsend <email address hidden> Wed, 08 Mar 2017 14:53:46 +0000