This uses a new nav style with the heirarchy:
```
Breadcrumbs
|- Title
|- Description
|- Third-Level Navigation
```
The navigation bar uses the transparent red-underlined
buttons similar to the user activity page.
Over time all admin pages will use this, but this starts
with the new plugin show page.
---------
Co-authored-by: Ella <ella.estigoy@gmail.com>
This commit introduces the following components:
* DBreadcrumbsContainer - The wrapper template-only component,
which renders all DBreadcrumbsItem components on the page.
* DBreadcrumbsItem - The component that registers a LinkTo
for the breadcrumb trail. The breadcrumb > trail > will
show based on the order these items are rendered on the page.
* BreadcrumbsService - Manages the DBreadcrumbsContainer elements
on the page via DBreadcrumbsContainerModifier.
* DBreadcrumbsContainerModifier - Handles registering DBreadcrumbsContainer
elements with the BreadcrumbsService and deregistering them.
For now, we will only use these breadcrumbs in the admin section
of Discourse, and this initial commit only uses them in admin/plugins.
This is heavily based off of
https://github.com/Bagaar/ember-breadcrumbs,
but will be further modified for our needs.
* Simplify config nav link generation to always inject the Settings
tab
* Auto-redirect to the first non-settings config link (if there is one)
when the user lands on /admin/plugins/:plugin_id
* Add `extras` to admin plugin serializer so plugins can add more
data on first load
* Add PikadayCalendar page object for system specs, extracted from the
CalendarDateTimePicker to make it more generic.
This commit changes the API for registering the plugin config
page nav configuration from a server-side to a JS one;
there is no need for it to be server-side.
It also makes some changes to allow for 2 different ways of displaying
navigation for plugin pages, depending on complexity:
* TOP - This is the best mode for simple plugins without a lot of different
custom configuration pages, and it reuses the grey horizontal nav bar
already used for admins.
* SIDEBAR - This is better for more complex plugins; likely this won't
be used in the near future, but it's readily available if needed
There is a new AdminPluginConfigNavManager service too to manage which
plugin the admin is actively viewing, otherwise we would have trouble
hiding the main plugin nav for admins when viewing a single plugin.
This commit adds new plugin show routes (`/admin/plugins/:plugin_id`) as we move
towards every plugin having a consistent UI/landing page.
As part of this, we are introducing a consistent way for plugins
to show an inner sidebar in their config page, via a new plugin
API `register_admin_config_nav_routes`
This accepts an array of links with a label/text, and an
ember route. Once this commit is merged we can start the process
of conforming other plugins to follow this pattern, as well
as supporting a single-page version of this for simpler plugins
that don't require an inner sidebar.
Part of /t/122841 internally
