The main change made is to use `pointerdown` and `touchstart` for detecting click outside in `FloatKit`, the problem of using `click` is that it will trigger on `mouseup` which is not working well with `FloatKit` shown using `mousedown` (when we change selection with the `mousedown` for example) as the release will be interpreted as a click outside and close the menu. To solve this issue the previous code in `post-text-selection` was going through various hacks for detecting state of mouse which are not always very reliable.
The second fix is to exit earlier when selection didn't change.
This has been tested on chrome/firefox and safari (mobile) and seems to work reliably.
<!-- NOTE: All pull requests should have tests (rspec in Ruby, qunit in JavaScript). If your code does not include test coverage, please include an explanation of why it was omitted. -->
1. Removes accidental bold from `text` and `multiselect` labels/placeholders
2. Adds the animated label/placeholder combo to `multiselect`
3. Makes the `multiselect` placeholder lighter to match other fields
4. Makes the `dropdown` values darker to match other fields
5. Removes the extra 5px spacing before `confirmation` fields
`@ember/jquery` was necessary to automate the `app.import()` but
that is no longer necessary with `ember-auto-import`. A secondary
thing it does is bringing back the `this.$` feature, but with a
deprecation. It is my understanding that the deprecation has long
be fully absorbed into both core and plugins so we shouldn't need
this package anymore.
No plugins or themes rely on anonymous_posting_min_trust_level so we
can just switch straight over to anonymous_posting_allowed_groups
This also adds an AUTO_GROUPS const which can be imported in JS
tests which is analogous to the one defined in group.rb. This can be used
to set the current user's groups where JS tests call for checking these groups
against site settings.
Finally a AtLeastOneGroupValidator validator is added for group_list site
settings which ensures that at least one group is always selected, since if
you want to allow all users to use a feature in this way you can just use
the everyone group.
Back in c31772879b we introduced
SiteSetting.composer_ios_media_optimisation_image_enabled and
disabled media optimization on safari iOS because of performance
issues when rendering to canvas, and OffscreenCanvas support
was not yet available.
Safari now supports OffscreenCanvas, so now we can give this
another go, and also use OffscreenCanvas everywhere it is supported.
This fixes a similar issue to 8b3eca0 where an Errno::ETXTBSY error was raised because the minio_runner gem was trying to install the binary across multiple processes in rspec. If we just make sure the latest version is installed before the tests run, this shouldn't happen, since MinioRunner.start will not do any further attempts at installation if the latest version is installed.
Running addonPostprocessTree manually was causing ember-auto-import's postprocess hook to run and generate extra unnecessary chunks. The only reason called addonPostprocessTree directly was to allow the terser plugin to run on the extra public trees. We can do the terser postprocessing manually instead.
This commit is approximately the inverse of e1d27400f5.
This commit also removes ember-auto-import as dependencies of admin/wizard/discourse-plugins because they are not 'real' ember addons, and so it isn't serving any useful purpose. (see also https://github.com/discourse/discourse/pull/23974)
As much as possible I would like us to avoid having to go the with a global event listener on click/mouseover. For now I have removed all cases of `data-tooltip`, if we clearly identify a use case of a global event listener we might reconsider this.
The following changes are also included:
- by default tooltips won't attempt to focus first focusable element anymore
- tooltip will now use `cursor: pointer` by default
- a new service has been introduced: `InternalTooltip` which is responsible to track the current instance displayed by a `<DTooltip />`. Portal elements when replaced are not properly cleaned and I couldn't figure out a way to have a proper hook to ensure the previous `DTooltipInstance` is properly set as not expanded; this problem was very visible when using a tooltip as interactive and hovering another tooltip, which would replace the interactive tooltip as not closed.
This allows users to see their passkeys recommended by the browser as they type their username.
There's a small refactor here, to make sure the same action is used by both the conditional UI and the passkey login button. The webauthn API only supports one auth attempt at a time, so in this PR we need to add a service singleton to manage the navigator.credentials.get promise so that it can be cancelled and reused as the user picks the conditional UI (i.e. the username login input) or the dedicated passkey login button.
This commit adds a loading spinner that appears immediately after
clicking the play button on a video placeholder and will go away once
the "onCanPlay" event fires for the video.
This prevents a completely empty (no play button) placeholder from
appearing for some amount of time while the video is loading enough to
start playing.
- more subtle animation when showing a toast
- resumes auto close when removing the mouse from the toast
- correctly follows reduced motion
- uses output with role status as element: https://web.dev/articles/building/a-toast-component
- shows toasts inside a section element
- prevents toast to all have the same width
- fixes a bug on mobile where we would limit the width and the close button wouldn't show correctly aligned
I would prefer to have tests for this, but the conjunction of css/animations and our helper changing `discourseLater` to 0 in tests is making it quite challenging for a rather low value. We have system specs using toasts ensuring they show when they should.
Why this change?
When we're in the midst of loading more tags, the filter dropdown
is still enabled and may result in us firing off multiple requests to
the server to load more tags. This makes the loading hard to reason
about in the tests environment and has led to flaky tests.
What does this change do?
This changes disables the filter dropdown when more tags are being
loading.
This commit fixes a bug in which the dark category logo would be used in a light theme if the system preference was set to dark and the user forced the use of a light theme in Discourse
This PR addresses the push to unify the icon representing AI throughout Discourse, by using the discourse-sparkles icon.
The icon is being moved to core to make changes with dependencies included in core that were using the "magic" icon instead.
In 2 places "magic" -> "discourse-sparkles,
1. topic summaries
2. (unreleased) chat summaries example
This widget is no longer used. It's better to remove it completely, so that `decorateWidget` and `reopenWidget` calls print a warning to the console rather than failing silently.
* FIX: Don't lose SummaryBox state through widget re-renders.
The <SummaryBox /> component state will get lost when scrolling to the bottom of a topic. Due to the widget being re-rendered, it will go back to the collapsed state, and we need to fetch the summary again.
This change moves all the state updates to the postStream model, which also refreshes the widget to keep it updated.
* Reify topic summary using a pojo
Now that core has a file structure and default imports, Ember's resolver can load helpers lazily. So we can remove the lazy loading, and helpers in ember templates will continue to work. This should provide a slight performance improvement for initial boot.
However, there is a slight complication: some of our helpers are also registered with our Raw Handlebars system as a side-effect of loading the module. Therefore, this commit adds a `helperMissing` helper to our RawHandlebars system. This looks up the helper by name in the ember resolver, which triggers the relevant module to be evaluated, and the raw helper to be registered as a side effect.
For backwards-compatibility, plugin and theme helpers continue to be eagerly evaluated. Once the `discourse.register-unbound` deprecation is resolved, we can safely remove this eager loading.
`registerUnbound` was present for legacy reasons when using helpers in raw-hbs and has been replaced by `registerRawHelper`.
For new helpers used only in classic ember template, exporting a default function from `helpers/*.js` is recommended.
This change also means that all existing helpers will be available to import in `gjs` files.
Co-authored-by: David Taylor <david@taylorhq.com>
This commit adds a new admin UI under the route `/admin-revamp`, which is
only accessible if the user is in a group defined by the new `enable_experimental_admin_ui_groups` site setting. It
also adds a special `admin` sidebar panel that is shown instead of the `main`
forum one when the admin is in this area.
![image](https://github.com/discourse/discourse/assets/920448/fa0f25e1-e178-4d94-aa5f-472fd3efd787)
We also add an "Admin Revamp" sidebar link to the community section, which
will only appear if the user is in the setting group:
![image](https://github.com/discourse/discourse/assets/920448/ec05ca8b-5a54-442b-ba89-6af35695c104)
Within this there are subroutes defined like `/admin-revamp/config/:area`,
these areas could contain any UI imaginable, this is just laying down an
initial idea of the structure and how the sidebar will work. Sidebar links are
currently hardcoded.
Some other changes:
* Changed the `main` and `chat` panels sidebar panel keys to use exported const values for reuse
* Allowed custom sidebar sections to hide their headers with the `hideSectionHeader` option
* Add a `groupSettingArray` setting on `this.siteSettings` in JS, which accepts a group site setting name
and splits it by `|` then converts the items in the array to integers, similar to the `_map` magic for ruby
group site settings
* Adds a `hidden` option for sidebar panels which prevents them from showing in separated mode and prevents
the switch button from being shown
---------
Co-authored-by: Krzysztof Kotlarek <kotlarek.krzysztof@gmail.com>
* UX: add static confetti bacgkround image on wizard steps
* DEV: slow down speed animation for confetti
* DEV: compress image file size
* UX: use an image that has transparent background
* DEV: use correct image file name
- don't try to guess the name of the manager (too many options)
- improve error message when registration is not allowed
- output error in console when registration fails
- minor fix to rename dialog layout
- hides action buttons in DiscourseHub (because adding passkeys there is not possible)
- adds acceptance test to ensure action buttons are hidden for admins seeing another user's profile
This API came from a time when themes had to define JS and templates inside `<script>` tags. Nowadays, it's rarely used, and much better patterns are available for registering connectors.
These updates significantly improve IDE tooling for imports across the Discourse core codebase, and also for framework packages. The `@types/ember-*` packages are a temporary solution until we get onto Ember 5, which ships its types in the main package.
The previous approach of having jsconfig files in each package directory did work, but once you start adding all the possible interlinks between them, we hit the file count limit of VSCode's tooling (because it counts every file for every jsconfig its referenced in). Having one file at the root means that a single file can apply to all core packages and plugins.
Long-term, to get the same functionality for all themes/plugins, we may need to look at building/publishing a Discourse types package which can be added to theme/plugin package.json files for development purposes.
As of #23867 this is now a real package, so updating the imports to
use the real package name, rather than relying on the alias. The
name change in the package name is because `I18n` is not a valid
name as NPM packages must be all lowercase.
This commit also introduces an eslint rule to prevent importing from
the old I18n path.
For themes/plugins, the old 'i18n' name remains functional.
Why this change?
In 38d3208027, the position of the
`headerBelowTitle` outlet was changed causing the deselect text in the
edit sidebar catgegory/tag modals to appear inline with the title which
we do not want.
What does this change do?
This change introduces the `belowModalTitle` outlet in `DModal` which is
where the `headerBelowTitle` outlet was located before it was changed.
This reverts commit 5f0bc4557f.
Through extensive internal discussion we have decided to revert
this change, as it significantly impacted moderation flow for
some Discourse site moderators, especially around "something else"
flags. We need to re-approach how flags are counted holistically,
so to that end this change is being reverted.
This commit introduces a new endpoint to search categories and uses it
instead of the categories map that is preloaded using SiteSerializer.
This feature is enabled only when the hidden site setting
lazy_load_categories is enabled and should be used only on sites with
many categories.
At this moment, this feature is under a site setting named
lazy_load_categories.
In the future, categories will no longer be preloaded through site data.
This commit add information about categories in topic list and ensures
that data is used to display topic list items.
Parent categories are serialized too because they are necessary to
render {{category-link}}.
We'll probably have to keep the globals around for compatibility, but we should always import it ourselves. We'll followup with an updated eslint config to enforce this.
PERF: improve touch, swipe, panning performance on mobile menus
---
* stop event propagation on swipe events: other touch events were stealing a huge amount of time here. Stop event
propagation when handling pan events.
* animate with [web animations api](https://developer.mozilla.org/en-US/docs/Web/API/Web_Animations_API/Using_the_Web_Animations_API)
* prefer translate3d to hint for gpu rendering.
* query document for elements only on start move event, not on subsequent move
events
* remove unused calculations for directioned velocity and distance: all swipe/pan elements function in x/y direction only.
* re-implement scroll locking behavior.
re-implemented scroll lock behavior
---
With stop event propagation, we need to re-implement scroll locking on menu swipes.
Previously, this was using onTouchMove which was costly.
We may now use styling with overflow-y:hidden to lock scroll behavior.
overflow:hidden on html/body elements is now supported by iOS as of 2022
https://bugs.webkit.org/show_bug.cgi?id=153852https://bugs.webkit.org/show_bug.cgi?id=220908
UX: improve swipe
---
Some improvements to get gestures and swipes feeling a little more polished.
This focuses on end gesture, and how we transfer it to a css animation to
complete a menu open/close action.
Multitouch: events may pan, scroll, and zoom - especially on iOS safari.
Cancelling the swipe event allows for a more pleasant zooming experience.
* ease-out on menus opening, linear on close
* calculate animation duration for opening and closing,
attempt to better transfer user swipe velocity to css animation.
* more timely close/open and cleanup from calculated animation timing.
* add animation to closing menus on cloak tap
* correctly animate menus with ease-in and ease-out
* add swipe cancel event on multitouch event
DEV
---
* lean on promises
js animations api gives us promises to listen to. Update test waiters
to use waitForPromise from @ember/test-waiters instead of reigster/unregister.
* convert swipe mixin to its own class.
Convert swipe callbacks to custom events on the element.
Move shared functions for max animation time and close logic to
new shared class.
swipe-events lib uses custom events to trigger callbacks, rather than assuming
implemented hard coded function from the mixin's base class. Custom events are
triggered from the bound element as swipestart, swipeend, swipe
Add shared convenience functions for swipe events so they can be more easily
shared.
A client receives an initial swipe event and can check some state to see if it
wants to handle the swipe event and if it doesn't, calling
`event.preventDefault();` will prevent `swipe` and `swipeend` events from firing
until another distinct swipestart event is fired. Swipe events will auto-cancel on multitouch.
The scroll lock has also exposed as its own utility class.
Adds UI elements for registering a passkey and logging in with it. The feature is still in an early stage, interested parties that want to try it can use the `experimental_passkeys` site setting (via Rails console).
See PR for more details.
---------
Co-authored-by: Joffrey JAFFEUX <j.jaffeux@gmail.com>
Previously this logic was only checking the post number. That meant that navigating between the first post of two topics would not trigger the event.
In the past, the event would be triggered anyway because the ScrollingPostStream would be destroyed/re-created when navigating between topics. But now that we use the 'loading slider' technique, the same component instance is re-used.
The motivation for this commit is to fix the 'DiscoToc' theme component, which relies on the event firing when navigating between topics.
This commit adds a new Revise... action that can be taken
for queued post reviewables. This will open a modal where
the user can select a Reason from a preconfigured list
(or by choosing Other..., a custom reason) and provide feedback
to the user about their post.
The post will be rejected still, but a PM will also be sent to
the user so they have an opportunity to improve their post when
they resubmit it.
Preloading just metadata is not always respected by browsers, and
sometimes the whole video will be downloaded. This switches to using a
placeholder image for the video and only loads the video when the play
button is clicked.
Currently, `window.I18n` is defined in an old school hand written
script, inlined into locale/*.js by the Rails asset pipeline, and
then the global variable is shimmed into a pseudo AMD module later
in `module-shims.js`.
This approach has some problems – for one thing, when we add a new
V2 addon (e.g. in #23859), Embroider/Webpack is stricter about its
dependencies and won't let you `import from "I18n";` when `"I18n"`
isn't listed as one of its `dependencies` or `peerDependencies`.
This moves `I18n` into a real package – `discourse-i18n`. (I was
originally planning to keep the `I18n` name since it's a private
package anyway, but NPM packages are supposed to have lower case
names and that may cause problems with other tools.)
This package defines and exports a regular class, but also defines
the default global instance for backwards compatibility. We should
use the exported class in tests to make one-off instances without
mutating the global instance and having to clean it up after the
test run. However, I did not attempt that refactor in this PR.
Since `discourse-i18n` is now included by the app, the locale
scripts needs to be loaded after the app chunks. Since no "real"
work happens until later on when we kick things off in the boot
script, the order in which the script tags appear shouldn't be a
problem. Alternatively, we can rework the locale bundles to be more
lazy like everything else, and require/import them into the app.
I avoided renaming the imports in this commit since that would be
quite noisy and drowns out the actual changes here. Instead, I used
a Webpack alias to redirect the current `"I18n"` import to the new
package for the time being. In a separate commit later on, I'll
rename all the imports in oneshot and remove the alias. As always,
plugins and the legacy bundles (admin/wizard) still relies on the
runtime AMD shims regardless.
For the most part, I avoided refactoring the actual I18n code too
much other than making it a class, and some light stuff like `var`
into `let`.
However, now that it is in a reasonable format to work with (no
longer inside the global script context!) it may also be a good
opportunity to refactor and make clear what is intended to be
public API vs internal implementation details.
Speaking of, I took the librety to make `PLACEHOLDER`, `SEPARATOR`
and `I18nMissingInterpolationArgument` actual constants since it
seemed pretty clear to me those were just previously stashed on to
the `I18n` global to avoid polluting the global namespace, rather
than something we expect the consumers to set/replace.
We run the ember-this-fallback transformation on plugin and theme code so that they can continue omitting `this.` in `.hbs` templates. A bug in the implementation meant that it was incorrectly transforming things like `{{dir/some-component}}` into `<DirSomeComponent />` (rather than `<Dir::SomeComponent />`).
This commit uses patch-package to apply the fix from https://github.com/tildeio/ember-this-fallback/pull/56
`escape` from `pretty-text/sanitizer` is a re-export of the same
function defined in `discourse-common`. Updating the import paths
across the codebase to use the `discourse-common` import path.
`escape` is a rather simple function that can be accomplished with
a regular expression in `discourse-common`.
On the other hand, the remaining parts in `pretty-text/sanitizer`
has a lot of code, PLUS it depend on the rather heavy "xss" NPM
library.
Currently, most of the consumers of `pretty-text/sanitizer` are of
the `{ escape }` varient. This is resolved by this PR.
The remaining usages are either:
1. via/through `PrettyText` which is essentially gated behind
loading the markdown-it bundle, OR
2. via `sanitize` from `discourse/lib/text`
I believe we may ultimately be able to move all the usages to behind
the markdown-it bundle (or, equivilantly, set up another lazy bundle
for `sanitize`) and be able to shed the sanitization code and the
"xss" library from the initial page load.
`discourse/lib/text` also defines a `sanitizeAsync` which is gated
behind loading the markdown-it bundle.
Looking through the usages of `sanitize`, I believe most of these
can be safely switched to use `sanitizeAsync`, in that they are
already in an asynchrnous path that handles a server response. Most
of them are actually rendering a piece of server-generated HTML
message as flash message, so I am not sure there really is value in
sanitizing (we should be able to trust our own server?), but in any
case, code-wise, they should already be able to absorb the async
just fine.
I am not sure if `sanitize` and `sanitizeAsync` are actually API
compatible – they both take `options` but I think those `options` do
pretty different things. This is somethign for another person to
investigate down the road in another PR.
According to `all-the-plugins`, `discourse-graphviz` also import
from this location, so perhaps we should PR to update. That being
said, it doesn't really hurt anything to keep the alias around for
a while.
This started out as a seemingly benign refactor to replace the
`require` for `withPluginApi` to an actual import. However, it
broke the test in seemingly random places.
It turns out that in serveral places, we are calling `isTesting()`
in module scope and assigning the result to a constant. For example
we do that in the composer service to disable checking drafts when
testing.
This is problematic because `isTesting` doesn't really set until
the `discourse-bootstrap` initializer is run, and so any modules
that are evaluated before then will have locked in the wrong value
for `isTesting()`.
If we are going to use and treat `isTesting()` like a constant then
we will have to make sure we set it sufficiently early before any
code-loading happens.
Previously, the `user-tips` service included a couple of calls to `next()`. These were introduced to work around errors like
```
You attempted to update `availableTips` on `<UserTips:ember659>`, but it had already been used previously in the same computation
```
These errors come from the fact that various `<UserTip>` components are rendering at slightly different times in the runloop and stepping on each other. Normally this doesn't happen in Ember, but the implementation details of our 'Widget' system and its 'RenderGlimmer' helper mean that RenderGlimmer components are rendered later than normal Ember components. Using `next()` avoids the problem because it means that all the updates are scheduled together in the following runloop interation.
However, the use of `next()` can create some subtle timing issues, which have been evident in the recent flakiness of some qunit tests. This commit makes a few changes to improve the situation:
1. Use a TrackedMap to provide fine-grained `shouldRender()` reactivity for each user-tip id. That means that different user tips will not be trying to update the same piece of tracked state (previously the entire `availableTips` array was `@tracked`, and was completely re-assigned every time a new `<UserTip>` was rendered
2. Avoid reassigning any tracked state unless the value has actually changed
3. Remove the `next()` workarounds
- Introduces a `deepFreeze` helper to block any mutations to the current-user fixture
- Add `cloneJSON` to any places which were previously causing mutations
Currently, the UI section that contains the title+category+tags of a topic list item (the mobile version) has only one and very generic CSS class, `.right`. Plugins and themes that need to target this section for styling would have to use awkward/very specific CSS selectors in order to avoid incorrectly styling other elements that happen to have the same generic CSS class.
This commit adds an additional class `.topic-item-metadata` to the section to allow easier and more maintainable styling for it.
See https://github.com/discourse/discourse-clickable-topic/pull/4 for a theme that will benefit from this change.
Normally, modules defined under `blah/index` can be imported as `blah`. This is also true of Ember resolver lookups - `<MyComponent />` should resolve to the same as `<MyComponent::Index />`. This was working as expected in Discourse core, but we had not implemented the same in our custom resolver logic for themes/plugins.
This commit implements the `/index` fallback, and adds a test for the behaviour.
This fixes an issue where, on a textarea with a lot of text, the cursor
would jump when adding a new line. See video in PR for a repro.
This is a Chrome bug with scroll anchoring.
Refs: https://bugs.chromium.org/p/chromium/issues/detail?id=997266
The fix here disables `overflow-anchor` on the composer textarea. There
should be no side effects to this change, as scroll anchoring is likely
not needed for the composer textarea element.
The 'create topic' entry in the dropdown was incorrectly using the 'reply as new topic' description. This fixes the logic to use a separate locale key for the description.
This commit does a couple of things:
1. Add a new plugin outlet, `above-topic-list-item`, to the `topic-list-item` component
2. Pass the topic in question as an outlet argument for the (existing) `above-latest-topic-list-item` outlet in the `latest-topic-list-item` component.
For the admin plugin list we want to be able to link to
a meta topic for plugins, but we have no standard way to
do this at the moment. This adds support for meta_topic_id
alongside other plugin metadata like authors, URL etc,
that gets built into a Meta topic URL in the serializer.
Some time ago, we introduced the `cookAsync` instead of the existing
`cook` function, and planned to migrate everything to it. Then after
migrating, we wanted to raname the function to simply `cook`.
I've checked Core and plugins, and currently we call `cookAsync` everywhere,
there are no calls to the `cook` function anymore. So we're good
to proceed with this refactoring.
This PR makes the first step by making current cookAsync and cook functions
do the same thing. Effectively now the `cook` function becomes an alias
for the `cookAsync` function.
This PR is a first step towards private groups. It redesigns settings/members area of a channel and also drops the "about" page which is now mixed into settings.
This commit is also:
- introducing chat-form, a small DSL to create forms, ideally I would want something in core for this
- introducing a DToggleSwitch page object component to simplify testing toggles
- migrating various components to gjs
Why this change?
Back in May 17 2023 along with the release of Discourse 3.1, we announced
on meta that the legacy hamburger dropdown navigation menu is
deprecated and will be dropped in Discourse 3.2. This is the link to the announcement
on meta: https://meta.discourse.org/t/removing-the-legacy-hamburger-navigation-menu-option/265274
## What does this change do?
This change removes the `legacy` option from the `navigation_menu` site
setting and migrates existing sites on the `legacy` option to the
`header dropdown` option.
All references to the `legacy` option in code and tests have been
removed as well.
Currently, if you set an integer site setting in the admin interface and include thousands separators, you will silently configure the wrong value.
This PR replaces TextField inputs for integer site settings with NumberField. It also cleans the numeric input of any non-digits in the backend in case any separators make it through.
The custom html elements we were using for bootstraping were causing Embroider to end the `<head>` tag and immediately start `<body>`. As a result most of `<meta>` tags ended up in the `<body>`.
That mean (among possibly other issues) that the app did not have CSRF token set properly on launch (in the development env)
Why this change?
Previously just using the `addToolbarPopupMenuOptionsCallback` plugin
API itself was insufficient because it required the return object to
include an `action` key which only accepted a name of the action
function as a string. This was highly problematic because the action
function had to be defined on the `composer` service which means using
the `modifyClass` API to add the action function. This made the API
awkward to use leading to poor developer experiencec.
What does this change do?
This commit introduces a couple of improvemnts to the API.
1. First the API has been renamed to `addComposerToolbarPopupMenuOption` because
the API no longer accepts a callback function which was quite
redundant. Instead, it now accepts an Object. The
`addToolbarPopupMenuOptionsCallback` API function is deprecated and
will be dropped in Discourse 3.3. Note that passing the API a
function is still supported but will be dropped when the `addToolbarPopupMenuOptionsCallback`
is removed.
2. The `action` key in the Object passed to the function can now be a
function and is passed the `toolbarEvent` object when called.
3. The `condition` on key in the Object passed to the function can now be a
function and is passed the `composer` service when called.
It's a special case widget - its constructor has different contructor arguments:
```js
export default class PostCooked {
constructor(attrs, decoratorHelper, currentUser) {
...
```
vs
```js
export default class Widget {
constructor(attrs, register, opts) {
...
```