add "visit site" link on top left of Wagtail's admin UI (menu / sidebar)

Hello,

Is your proposal related to a problem?

I think there should be a link to return to the site home page from the Wagtail’s admin like there is in a lot of CMS and even in the django-admin !

example in Wordpress :

In order to do that, I usually create a custom wagtail admin template which works great !

But sometimes, Wagtail’s update can “break” some parts of the UI of my custom template : with the latest update (from 2.15 to 2.16) I had to manually update my custom template to add new features of the wagtail UI (ex: the arrow button of the menu).

I know there is the solution to use the register_admin_menu_item hooks but the link will be under the logo and I think it would be better to place the link upper on the UI (top-left is a good place IMO).

https://docs.wagtail.org/en/stable/reference/hooks.html#register-admin-menu-item

Describe the solution you’d like

It would be great to add a link on top left of the Wagtail’s admin

[robmoorman]

@nyleza @gasman we have this link in many applications:

@hooks.register("register_admin_menu_item")
def register_site_menu_item():
    return MenuItem(
        _("Go back to site"), "/?_=cms", classnames="icon icon-fa-globe", order=0,
    )

If you want to link to be multisite dependent (e.g. based on permissions) you can alter the url of the button by making a custom MenuItem and override the def get_context(self, request): method as via the request you’ll have your authenticated user available.

The same method can be used to set the url based on the Site, depending on your needs.

[lb-]

Note. A similar issue was raised a while ago - I have closed it as a duplicate of this one. https://github.com/wagtail/wagtail/issues/2047

I personally think that this feature is useful but could be well served using our existing menu hooks system.

In general - adding links above the bird would be good to be able to add without too much complexity.