Classic Ember components (i.e. "@ember/component") rely upon "event
delegation" to listen for events at the application root and then dispatch
those events to any event handlers defined on individual Classic components.
This coordination is handled by Ember's EventDispatcher.
In contrast, Glimmer components (i.e. "@glimmer/component") expect event
listeners to be added to elements using modifiers (such as `{{on "click"}}`).
These event listeners are added directly to DOM elements using
`addEventListener`. There is no need for an event dispatcher.
Issues may arise when using Classic and Glimmer components together, since it
requires reconciling the two event handling approaches. For instance, event
propagation may not work as expected when a Classic component is nested
inside a Glimmer component.
`normalizeEmberEventHandling` helps an application standardize upon the
Glimmer event handling approach by eliminating usage of event delegation and
instead rewiring Classic components to directly use `addEventListener`.
Specifically, it performs the following:
- Invokes `eliminateClassicEventDelegation()` to remove all events associated
with Ember's EventDispatcher to reduce its runtime overhead and ensure that
it is effectively not in use.
- Invokes `rewireClassicComponentEvents(app)` to rewire each Classic
component to add its own event listeners for standard event handlers (e.g.
`click`, `mouseDown`, `submit`, etc.).
- Configures an instance initializer that invokes
`rewireActionModifier(appInstance)` to redefine the `action` modifier with
a substitute that uses `addEventListener`.
Additional changes include:
* d-button: only preventDefault / stopPropagation for handled actions
This allows unhandled events to propagate as expected.
* d-editor: avoid adding duplicate event listener for tests
This extra event listener causes duplicate paste events in tests.
* group-manage-email-settings: Monitor `input` instead of `change` event for checkboxes
If there's an error loading a topic, and later you load it successfully - the the stale error message would still briefly show up every time you navigate to that topic
This reverts commit 28be5d3037 and fcb4675415
This caused qunit timeouts in our internal CI environments. Not sure of the exact cause yet, but we're reverting for now while we investigate.
In test mode we reinitialize the Application for every test. We only want to apply the class reopens once to avoid performance regressions and memory leaks in the test suite.
Classic Ember components (i.e. "@ember/component") rely upon "event
delegation" to listen for events at the application root and then dispatch
those events to any event handlers defined on individual Classic components.
This coordination is handled by Ember's EventDispatcher.
In contrast, Glimmer components (i.e. "@glimmer/component") expect event
listeners to be added to elements using modifiers (such as `{{on "click"}}`).
These event listeners are added directly to DOM elements using
`addEventListener`. There is no need for an event dispatcher.
Issues may arise when using Classic and Glimmer components together, since it
requires reconciling the two event handling approaches. For instance, event
propagation may not work as expected when a Classic component is nested
inside a Glimmer component.
`normalizeEmberEventHandling` helps an application standardize upon the
Glimmer event handling approach by eliminating usage of event delegation and
instead rewiring Classic components to directly use `addEventListener`.
Specifically, it performs the following:
- Invokes `eliminateClassicEventDelegation()` to remove all events associated
with Ember's EventDispatcher to reduce its runtime overhead and ensure that
it is effectively not in use.
- Invokes `rewireClassicComponentEvents(app)` to rewire each Classic
component to add its own event listeners for standard event handlers (e.g.
`click`, `mouseDown`, `submit`, etc.).
- Configures an instance initializer that invokes
`rewireActionModifier(appInstance)` to redefine the `action` modifier with
a substitute that uses `addEventListener`.
Additional changes include:
* d-button: only preventDefault / stopPropagation for handled actions
This allows unhandled events to propagate as expected.
* d-editor: avoid adding duplicate event listener for tests
This extra event listener causes duplicate paste events in tests.
* group-manage-email-settings: Monitor `input` instead of `change` event for checkboxes
The complex regex-based detection was based on Ember CLI's implementation, which is necessarily generic and needs to auto-detect the name. In our case, we know the name of the plugin so we can just pass it in - no need for dynamic detection. This resolves issues when there are other files in the `discourse/plugins/{name}` directory which are sorted before `discourse/`
Lone hbs files in the `/components` are automatically assumed to be template-only Glimmer components. The `templateOnly()` stub is only required when templates are in the `/templates/components` directory.
The clientside allowPersonalMessages function introduced
in e62e93f83a sometimes did not
work correctly, because the currentUser.groups property
only contained **visible** groups for the current user, which
could exclude auto groups that had their permissions set to
be owner-only visible.
It was unnecessary to add this anyway since we already have
can_send_private_messages on the CurrentUserSerializer. It's
better the backend does this calculation anyway. Use that
in the clientside code instead and get rid of allowPersonalMessages
Given that the category structure is generally speaking the backbone of most Discourse instances, it makes sense to show the edit button for the category even when the user is in a category/tag intersection route.
Debouncing inline anonymous functions does not work.
This fixes all instances of that error by extracting the function or using the new `@debounce(delay)` decorator
Our theme system injects a magical `settings` object at the top of themes JS modules to allow theme authors to access the settings as configured by admins in the UI. Within this `settings` object, there are a couple of special objects `theme_uploads` and `theme_uploads_local` that contain URLs for all the assets/uploads that the theme has.
For test modules/files, the theme system also injects a `settings` object at the top of tests modules, but it's not the same object as the object that's injected in non-test files. The difference is that in tests we want the settings to have their default values as opposed to any custom values that may exist in the site's database. This ensures that test results are consistent no matter the site that runs them.
However, the `settings` object in tests files currently doesn't have the special objects `theme_uploads` and `theme_uploads_local` which means that if a theme includes an asset that's lazy-loaded, it's not possible to write tests for anything that depends on the lazy-loaded asset because the theme will not be able to load the asset during the tests since `theme_uploads_local` and `theme_uploads` don't exist. This PR adds these special objects inside the `settings` object for test files.
Internal topic: t/71825/52.
Multiple things in the app need the height of the header to be correct (for example, scrolling to a post), so we need the header offset calculation. However, we shouldn't be calculating it on scroll, it's too resource intensive and it causes flickering on iPads (and possible other devices too).
This commit removes header offset calculation on scroll and adds a one-time calculation as soon as the header is first rendered. This ensures that users get scrolled to the correct post even if they open it in a new tab.
This commit adds a new `/hashtag/search` endpoint and both
relevant JS and ruby plugin APIs to handle plugins adding their
own data sources and priority orders for types of things to search
when `#` is pressed.
A `context` param is added to `setupHashtagAutocomplete` which
a corresponding chat PR https://github.com/discourse/discourse-chat/pull/1302
will now use.
The UI calls `registerHashtagSearchParam` for each context that will
require a `#` search (e.g. the topic composer), for each type of record that
the context needs to search for, as well as a priority order for that type. Core
uses this call to add the `category` and `tag` data sources to the topic composer.
The `register_hashtag_data_source` ruby plugin API call is for plugins to
add a new data source for the hashtag searching endpoint, e.g. discourse-chat
may add a `channel` data source.
This functionality is hidden behind the `enable_experimental_hashtag_autocomplete`
flag, except for the change to `setupHashtagAutocomplete` since only core and
discourse-chat are using that function. Note this PR does **not** include required
changes for hashtag lookup or new styling.
Before, `sidebar_list_destination` was an attribute on UserOptionSerializer. The problem was that this attribute was added to user model only when the user entered the preferences panel. We want that attribute to be available all the time, therefore it was moved to CurrentUserSerializer.
