Problem/Motivation
This is a followup to #1741498-39: Add a mobile preview bar to Drupal core.
Currently, the responsive preview feature only allows for a page to be previewed in portrait mode of a device.
This feature should be extended so that a user can toggle between portrait and landscape previews.
Proposed resolution
Design a control (button toggle) that will trigger an orientation change in the preview. Update the code to swap the width/height dimensions when the toggle is activated. Put in a nice transition animation.
Remaining tasks
- Design
- Implementation
User interface changes
The current preview UI will be extended with an orientation toggle.
API changes
None