Can't use panel without page widget

[jzaefferer]

Trying to use the panel widget without pages fails since panel depends on a parent [data-role='page'] to be present, and expects it to have a mobilePage data object with an options object attached. All the access for that just assume those exist, instead of checking if the page element is actually there.

For now I'm working around this by adding a <div data-role="page"> and making it a fake widget:

$("div[data-role='page']").data("mobilePage", {
    options: {}
})

To add insult to injury, panel ends up adding a class of ui-body-c to that page element. I have no idea why it does that, but I don't want that to happen.

[arschmitz]

@jzaefferer working on this is branch panels they are currently functional outside of pages but need to tweak some css and update a few more things.

[jaspermdegroot]

There was already a ticket for this. Closing as duplicate of #5741.