* web: basic cleanup of buttons
This commit adds Storybook features to the Authentik four-stage button.
The four-stage button is used to:
- trigger an action
- show that the action is running
- show when the action has succeeded, then reset
- show when the action has failed, then reset
It is used mostly for fetching data from the server. The variants are:
- ak-spinner-button: The basic form takes a single property argument, `callAction` a function that
returns a Promise (an asynchronous function).
- ak-action-button: Takes an API request function (which are all asynchronous) and adapts it to the
`callAction`. The only difference in behavior with the Spinner button is that on failure the error
message will be displayed by a notification.
- ak-token-copy-button: A specialized button that, on success, pushes the content of the retrieved
object into the clipboard.
Cleanup consisted of:
- removing a lot of the in-line code from the HTML, decluttering it and making more explicit what
the behaviors of each button type are on success and on failure.
- Replacing the ad-hoc Promise management with Lit's own `Task` handler. The `Task` handler knows
how to notify a Lit-Element of its own internal state change, making it ideal for objects like
this button that need to change their appearance as a Promise'd task progresses from idle →
running → (success or failure).
- Providing JSDoc strings for all of the properties, slots, attributes, elements, and events.
- Adding 'pointer-events: none' during the running phases of the action, to prevent the user from
clicking the button multiple times and launching multiple queries.
- Emitting an event for every stage of the operation:
- `ak-button-click` when the button is clicked.
- `ak-button-success` when the action completes. The payload is included in `Event.detail.result`
- `ak-button-failure` when the action fails. The error message is included in `Event.detail.error`
- `ak-button-reset` when the button completes a notification and goes back to idle
**Storybook**
Since the API requests for both `ak-spinner-button` and `ak-action-button` require only that a
promise be returned, Storybooking them was straightforward. `ak-token-copy-button` is a
special-purpose derivative with an internal functionality that can't be easily mocked (yet), so
there's no Storybook for it.
All of the stories provide the required asynchronous function, in this cose one that waits three
seconds before emitting either a `response` or `reject` Promise.
`ak-action-button`'s Story has event handler code so that pressing on the button will result in a
message being written to a display block under the button.
I've added a new pair of class mixins, `CustomEmitterElement` and `CustomListenerElement`. These
each add an additional method to the classes they're mixed into; one provides a very easy way to
emit a custom event and one provides a way to receive the custom event while sweeping all of the
custom event type handling under the rug.
`emitCustomEvent` replaces this:
``` JavaScript
this.dispatchEvent(
new CustomEvent('ak-button-click', {
composed: true,
bubbles: true,
detail: {
target: this,
result: "Some result, huh?"
},
})
);
```
... with this:
``` JavaScript
this.dispatchCustomEvent('ak-button-click', { result: "Some result, huh?" });
```
The `CustomListenerElement` handler just ensures that the handler being passed to it takes a
CustomEvent, and then makes sure that any actual event passed to the handler has been type-guarded
to ensure it is a custom event.
**Observations**
*Composition vs Inheritance, Part 1*
The four-state button has three implementations. All three inherit from `BaseTaskButton`:
- `spinner`
- provides a default `callAction()`
- `action`
- provides a different name for `callAction`
- overrides `onError` to display a Notification.
- `token-copy`
- provides a custom `callAction`
- overrides `onSuccess` to copy the results to the keyboard
- overrides `onError` to display a Notification, with special handling for asynchronous
processing.
The *results* of all of these could be handled higher up as event handlers, and the button could be
just a thing that displays the states. As it is, the BaseStateToken has only one reason to change
(the Promise changes its state), so I'm satisfied that this is a suitable evolution of the product,
and that it does what it says it does.
*Developer Ergonomics*
The one thing that stands out to me time and again is just how *confusing* all of the Patternfly
stuff tends to be; not because it's not logical, but because it overwhelms the human 7±2 ability to
remember details like this without any imperative to memorize all of them. I would like to get them
under control by marshalling them under a semantic CSS regime, but I'm blocked by some basic
disconnects in the current development environment. We can't shake out the CSS as much as we'd like
because there's no ESPrima equivalent for Typescript, and the smallest bundle purgeCSS is capable of
making for just *one* button is about 55KB. That's a bit too much. It's a great system for getting
off the ground, but long-term it needs more love than we (can) give it.
* Prettier has opinions.
* Removed extraneous debugging code.
* Added comments to the BaseTaskButton parent class.
* web: fixed two build errors (typing) in the stories.
* web: prettier's got opinions
* web: refactor the buttons
This commit adds URL mocking to Storybook, which in turn allows us to
commit a Story for ak-token-copy-button.
I have confirmed that the button's algorithm for writing to the
clipboard works on Safari, Chrome, and Firefox. I don't know
what's up with IE.
* ONE BYTE in .storybook/main blocked integration.
With the repair of lit-analyze, it's time to fix the rule set
to at least let us pass for the moment.
* Still looking for the list of exceptions in lit-analyze that will let us pass once more.
* web: repair error in EnterpriseLicenseForm
This commit continues to find the right configuration for
lit-analyze. During the course of this repair, I discovered
a bug in the EnterpriseLicenseForm; the original usage could
result in the _string_ `undefined` being passed back as a
value. To handle the case where the value truly is undefined,
the `ifDefined()` directive must be used in the HTML template.
I have also instituted a case-by-case stylistic decision to allow
the HTML, and only the HTML, to be longer that 100 characters
when doing so reduces the visual "noise" of a function.
Ken Sternberg