This removes the modal container named-outlet/controller/template and replaces it with a component. Named outlets will be removed in Ember 4.x, so this change is part of that upgrade project.
Smaller changes include:
- update some of the computed values to be getters rather than calculated during `show()`.
- update tests which were previously depending on the modal class persisting after the modal was closed
Much of the logic in the service will be deprecated once we introduce component-based modals.
This work is split out from https://github.com/discourse/discourse/pull/21304
Previously merged in 80b77b2e and then reverted due to issues with the PM invite modal. This PR fixes the issue, and introduces a test which would have caught the issue.
Context of the problem
When viewing the topic list for either the personal inbox or the group
PM inbox, we store a cache of the topic list if the user has loaded more
topics in the topic list. This cache is used to improve the experience
for users so that navigating to a topic and then back would not make
them lose their "last read" position in the topic list. Without this
cache, users will have to start from the top of the topic list each time
they navigate back after reading a topic.
What is the problem?
After archiving a PM, the user is redirected to either the personal
inbox or the group PM inbox. The problem is that if a topic list cache
exists, we will render the topic list using the cache. However, this
means that the archived PM will still appear in the list leading to
confusion for our users.
What is the fix?
To fix this, we will simply clear the topic list cache after a user
archives a topic.
Regular users should be redirected to the homepage after the topic is
no longer accessible by them (only staff members can view deleted
topics). There was a problem with permission checking for category
moderators which stopped the redirect from happening.
Using arrow functions changes `this` context, which is undesired in tests, e.g. it makes it impossible to setup things like pretender (`this.server`) in `beforeEach` hooks.
Ember guides always use classic functions in examples (e.g. https://guides.emberjs.com/release/testing/test-types/), and that's what it uses in its own test suite, as do various addons and ember apps.
It was also already used in Discourse where `this` was required. Moving forward, it will be needed in more places as we migrate toward ember-cli.
(I might later add a custom rule to eslint-discourse-ember to enforce this)
In newer Embers jQuery is removed. There is a `find` but it only returns
one element and not a jQuery selector. This patch migrates our code to a
new helper `queryAll` which allows us to remove the global.
We used many global functions to handle tests when they should be
imported like other libraries in our application. This also gets us
closer to the way Ember CLI prefers our tests to be laid out.
This is where they should be as far as ember is concerned. Note this is
a huge commit and we should be really careful everything continues to
work properly.
