Commit Graph

4 Commits

Author SHA1 Message Date
ade1f08c89 web: fix value handling inside controlled components (cherry-pick #9648) (#9685)
web: fix value handling inside controlled components (#9648)

* web: fix esbuild issue with style sheets

Getting ESBuild, Lit, and Storybook to all agree on how to read and parse stylesheets is a serious
pain. This fix better identifies the value types (instances) being passed from various sources in
the repo to the three *different* kinds of style processors we're using (the native one, the
polyfill one, and whatever the heck Storybook does internally).

Falling back to using older CSS instantiating techniques one era at a time seems to do the trick.
It's ugly, but in the face of the aggressive styling we use to avoid Flashes of Unstyled Content
(FLoUC), it's the logic with which we're left.

In standard mode, the following warning appears on the console when running a Flow:

```
Autofocus processing was blocked because a document already has a focused element.
```

In compatibility mode, the following **error** appears on the console when running a Flow:

```
crawler-inject.js:1106 Uncaught TypeError: Failed to execute 'observe' on 'MutationObserver': parameter 1 is not of type 'Node'.
    at initDomMutationObservers (crawler-inject.js:1106:18)
    at crawler-inject.js:1114:24
    at Array.forEach (<anonymous>)
    at initDomMutationObservers (crawler-inject.js:1114:10)
    at crawler-inject.js:1549:1
initDomMutationObservers @ crawler-inject.js:1106
(anonymous) @ crawler-inject.js:1114
initDomMutationObservers @ crawler-inject.js:1114
(anonymous) @ crawler-inject.js:1549
```

Despite this error, nothing seems to be broken and flows work as anticipated.

* web: fix value handling inside controlled components

This is one of those stupid bugs that drive web developers crazy. The basics are straightforward:
when you cause a higher-level component to have a "big enough re-render," for some unknown
definition of "big enough," it will re-render the sub-components. In traditional web interaction,
those components should never be re-rendered while the user is interacting with the form, but in
frameworks where there's dynamic re-arrangement, part or all of the form could get re-rendered at
any mmoment. Since neither the form nor any of its intermediaries is tracking the values as they're
changed, it's up to the components themselves to keep the user's input-- and to be hardened against
property changes coming from the outside world.

So static memoization of the initial value passed in, and aggressively walling off the values the
customer generates from that field, are needed to protect the user's work from any framework's
dynamic DOM management. I remember struggling with this in React; I had hoped Lit was better, but in
this case, not better enough.

The protocol for "is it an ak-data-control" is "it has a `json()` method that returns the data ready
to be sent to the authentik server."  I missed that in one place, so that's on me.

* Eslint had opinions.

* Added comments to explain something.

Co-authored-by: Ken Sternberg <133134217+kensternberg-authentik@users.noreply.github.com>
2024-05-13 12:26:20 +02:00
0bfce6e29d web: preserve selected list when provider updates (#9200)
* web: fix esbuild issue with style sheets

Getting ESBuild, Lit, and Storybook to all agree on how to read and parse stylesheets is a serious
pain. This fix better identifies the value types (instances) being passed from various sources in
the repo to the three *different* kinds of style processors we're using (the native one, the
polyfill one, and whatever the heck Storybook does internally).

Falling back to using older CSS instantiating techniques one era at a time seems to do the trick.
It's ugly, but in the face of the aggressive styling we use to avoid Flashes of Unstyled Content
(FLoUC), it's the logic with which we're left.

In standard mode, the following warning appears on the console when running a Flow:

```
Autofocus processing was blocked because a document already has a focused element.
```

In compatibility mode, the following **error** appears on the console when running a Flow:

```
crawler-inject.js:1106 Uncaught TypeError: Failed to execute 'observe' on 'MutationObserver': parameter 1 is not of type 'Node'.
    at initDomMutationObservers (crawler-inject.js:1106:18)
    at crawler-inject.js:1114:24
    at Array.forEach (<anonymous>)
    at initDomMutationObservers (crawler-inject.js:1114:10)
    at crawler-inject.js:1549:1
initDomMutationObservers @ crawler-inject.js:1106
(anonymous) @ crawler-inject.js:1114
initDomMutationObservers @ crawler-inject.js:1114
(anonymous) @ crawler-inject.js:1549
```

Despite this error, nothing seems to be broken and flows work as anticipated.

* web: preserve selected list when provider updates

The impulse to preserve the functionality of the system given a change of provider was... admirable,
but unnecessary in this case. A premature optimization that doesn't make a difference. Observations:

1. change from the client will bring a new `selected`. But changes from the outside shouldn't happen
   once the interactive experience is "settled."
2. the client is perfectly capable of listening to the `change` event and reading the content of the
   value list for selecteds. If the client is going to change the provider, it should provide the
   most up-to-date copy of selecteds as well.
3. We set the selecteds from two locations: from the client on start-up, and from the "selected"
   pane during user interaction.  Anything more is risk.  I shouldn't have taken that risk.
2024-04-10 00:12:33 +02:00
2ba66f4f91 web: upgrade to lit 3 (#8781)
* Holding for a moment...

* web: replace rollup with esbuild

This commit replaces rollup with esbuild.

The biggest fix was to alter the way CSS is imported into our system;
esbuild delivers it to the browser as text, rather than as a bundle
with metadata that, frankly, we never use.  ESBuild will bundle the
CSS for us just fine, and interpreting those strings *as* CSS turned
out to be a small hurdle.  Code has been added to AKElement and
Interface to ensure that all CSS referenced by an element has been
converted to a Browser CSSStyleSheet before being presented to the
browser.

A similar fix has been provided for the markdown imports.  The
biggest headache there was that the re-arrangement of our documentation
broke Jen's existing parser for fixing relative links.  I've provided
a corresponding hack that provides the necessary detail, but since
the Markdown is being presented to the browser as text, we have to
provide a hint in the markdown component for where any relative
links should go, and we're importing and processing the markdown
at runtime.  This doesn't seem to be a big performance hit.

The entire build process is driven by the new build script, `build.mjs`,
which starts the esbuild process as a service connected to the build
script and then runs the commands sent to it as fast as possible.
The biggest "hack" in it is actually the replacement for rollup's
`rollup-copy-plugin`, which is clever enough I'm surprised it doesn't
exist as a standalone file-copy package in its own right.

I've also used a filesystem watch library to encode a "watcher"
mechanism into the build script.  `node build.mjs --watch` will
work on MacOS; I haven't tested it elsewhere, at least not yet.

`node build.mjs --proxy` does what the old rollup.proxy.js script
did.

The savings are substantial.  It takes less than two seconds to build
the whole UI, a huge savings off the older ~45-50 seconds I routinely
saw on my old Mac.  It's also about 9% smaller.

The trade-offs appear to be small: processing the CSS as StyleSheets,
and the Markdown as HTML, at run-time is a small performance hit,
but I didn't notice it in amongst everything else the UI does as
it starts up.

Manual chunking is gone; esbuild's support for that is quite difficult
to get right compared to Rollup's, although there's been a bit of
yelling at ESbuild over it.  Codemirror is built into its own chunk;
it's just not _named_ distinctly anymore.

The one thing I haven't been able to test yet is whether or not the
polyfills and runtim shims work as expected on older browsers.

* web: continue with performance and build fixes

This commit introduces a couple of fixes enabled by esbuild and other
features.

1. build-locales

`build-locales` is a new NodeJS script in the `./scripts` folder
that does pretty much what it says in the name: it translates Xliff
files into `.ts` files.  It has two DevExp advantages over the old
build system.

First, it will check the build times of the xlf files and
their ts equivalents, and will only run the actual build-locales
command if the XLF files are newer than their TS equivalents.

Second, it captures the stderr output from the build-locales command
and summarizes it.  Instead of the thousands of lines of "this
string has no translation equivalent," now it just reports the
number of missed translations per locale.

2. check-spelling

This is a simple wrapper around the `codespell` command, mostly
just to reduce the visual clutter of `package.json`, but also to
permit it to run just about anywhere without needed hard-coded
paths to the dictionaries, using a fairly classic trick with git.

3. pseudolocalize and import-maps

These scripts were in TypeScript, but for our purposes I've
saved their constructed equivalents instead.  This saves on
visual clutter in the `package.json` script, and reduced the
time they have to run during full builds.  They're small enough
I feel confident they won't need too much looking over.

Also, two lint bugs in Markdown.ts have been fixed.

* Removed a few lines that weren't in use.

* build-locales was sufficiently complex it needed some comments.

* web: formalize that horrible unixy git status checker into a proper function.

* Added types for , the Markdown processor for in-line documentation.

* web: upgrade to Lit3

This commit replaces our Lit2 implementation with a Lit3 implementation.

This upgrade required two major shifts within our code, both of them consequential.

First, the restructuring of the way the get/set decorators for properties and states meant that a
lot of the code we were using needed to be refactored. More than that, a lot of those custom
accessors were implemented to trigger side-effects, such as when a providerID is set or changed
triggering the ProviderView to fetch the requsted Provider. The Lit2 and Lit3 documentation both say
[there is a better way to handle
this](https://lit.dev/docs/v2/components/properties/#:~:text=In%20most%20cases%2C%20you%20do%20not%20need%20to%20create%20custom%20property%20accessors)
by detecting the change in the `willUpdate()` point of an elements Lifecycle and triggering the side
effect there instead. I've done this in several places with a pattern of detecting the change, and
then naming the corresponding change as `fetchRequestedThing()`. The resulting code is cleaner and
uses fewer controversial features.

The other is that the type signature for `LitElement.createRenderRoot()` has changed to be either an
HTMLElement or a DocumentFragment. This required some serious refactoring of type changes through
Base and Interface codes. Noteably, the custom `AdoptedStyleSheetsElement` interface has been
superseded by the supplied and standardized
[DocumentOrShadowRoot](aa2b2352e1/src/lib/dom.generated.d.ts (L4715))
interface. Unfortunately, that interface is a mixin, and casting or instance checking are still in
place to make sure the objects being manipulated are typed "correctly."

Three files I touched during the course of this triggered SonarJS, so there are some minor fixes,
replacing some awkward syntax with more idiomatic code.  These are very minor, such as replacing:

```
const result = someFunction();
return result;

/* with */

return someFunction();

```

and

```
const result = x();
if (!result) { return true } else { return false }

/* with */

return !x();

```

* fix package lock

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* don't use hardcoded magic values

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

---------

Signed-off-by: Jens Langhammer <jens@goauthentik.io>
Co-authored-by: Jens Langhammer <jens@goauthentik.io>
2024-03-11 17:47:57 +00:00
5f1ba45966 web: provide dual-list multiselect with pagination (#8004)
* web: revise css-import-maps to need only a single entry, rather than dual-entry

Given that the difference Vite/Storybook cares about is whether or not there's a
sigil at the end of the CSS string, it seemed silly to require devs to enter
both the raw and sigiled string; just do an in-line text-and-replace.

* web: provide a "select / select all" tool for the dual list multiselect

**This commit**

Provides one of several of the sub-controls needed to make the multi-list multi-select thing work.
This is the simplest control, and I decided to go with it first because it's all presentation; all
it does is show the buttons and send events from those buttons.

A Storybook component is provided to show how well it works.

* web: provide a "select / select all" tool for the dual list multiselect

**This commit**

This commit provides the following new features for dual list multiselect:

- The "available" pane, which has all of the entries that are available to be selected.  Items that
  are already selected will remain, but they're marked with a checkmark and can neither be selected
  or moved.
- The "selected" pane, which has *all* of the entries that have been selected.
- The Pagination control, which in this case only sends an event upstream.

**Plan**:

The plan is to have a master control that marries the available-pane, selected-pane,
select-controls, and pagination-controls into a single component that receives the list of
"currently visible" available entries and keeps the list of "currently selected" entries, as well as
a pass-through for the pagination value that allows it to hide the pagination control if there is
only one page.

A master component *above that* will provide the list of currently visible entries and, at need,
read the value of the master control object for the "selected" list. That component will mostly be
data-only; it's render will probably just be `<slot></slot>`; its duty will be only to map entries
to string keys Lit can use, and to provide the lists we want to provide and the pagination ranges we
want to show.

Some judicious use of grid will allow me size the controls properly with/without the pagination
control.

Status and Title are going to be in the master control.

A <slot> will be provided for Search, but I have no plans to integrate that into this control as of
yet.

There is already a planned fallback control; the multi-select experience on mobile is actually
excellent, and we should exploit that appropriately.

* web: provide a "select / select all" tool for the dual list multiselect

**This commit**

1. Re-arrange the contents of the folder so that the sub-components are in their own folder. This
   reduces the clutter and makes it easier to understand where to look for certain things.
2. Re-arranges the contents of the folder so that all the Storybook stories are in their own folder.
   Again, this reduces the clutter; it also helps the compiler understand what not to compile.
3. Strips down the "Available items pane" to a minimal amount of interactivity and annotates the
   passed-in properties as `readonly`, since the purpose of this component is to display those. The
   only internal state kept is the list of items marked-to-move.
4. Does the same thing with the "Selected items pane".
5. Added comments to help guide future maintainers.
6. Restructured the CSS, taking a _lot_ of it into our own hands. Patternfly continues to act as if
   all components are fully available all the time, and that's simply not true in a shadowDOM
   environment. By separating out the global CSS Custom Properties from the grid and style
   definitions of `pf-c-dual-list-selector`, I was able to construct a more simple and
   straightforward grid (with nested grids for the columns inside).
7. Added "Delete ALL Selected" to the controls
8. Added "double-click" as a "move this one NOW" feature.

* web: provide a "select / select all" tool for the dual list multiselect

**This commit**

- Fixes the bug whereby pagination would leave the 'some moves available' state visible by clearing
  the 'to-move' state when the list of options changes.
- Fixes the bug whereby a change of 'options' in available would also cause an update to
  `selectedKeys`, causing the entire selected field to clear. Fixed by making `selectedKeys` a
  static object updated only when `selected` is generated rather than generating it anew with each
  re-rerender. (Hey, kids, can you say "functional programming and immutability" five time fast? I
  knew you could!)
- Fixes the bug whereby the change of outpost type would not cause an update of the `options`
  collection.
- Fixes the bug whereby the CSS was not creating enough whitespace separation between the whole
  component and its siblings. Host components are coded `span:static` unless otherwise styled to be
  `block`; we want `block` most of the time.
- Fixes the bug whereby the list of existing objects wasn't being passed to the handler correctly.
- Updates the Form Handler to recognize this new input object.
- Fixes the bug whereby changing outpost type doesn't handle the list of selected applications well.
- Fixes the bug whereby the identity of the outpost type's associated `fetch()` function loses
  identity -- necessary to maintain the selected outpost type switch.
- Fixes the CSS bug whereby horizontal scrolling would not enable correctly when the application's
  name overflows the listbox.
- Completes this assignment.  :-)

* web: last-minute pre-commit cleanup.

* running localize extract

* web: codeql found an issue with one of my tests.

* web: multi-select

Modified the display so that if it's a template we display it
correctly opposite the text, and provide classes that can be used
in the display to differentiate between the main label and the
descriptive label.

Added a sort key, so the select can sort the right-hand pane correctly.

Fixed the `this.selected` setters to use Arrays instead of maps.
Theoretically, this is terribly inefficient, as it makes it
theoretically O(n^2) rather than O(1), but in practice even if both
lists were 10,000 elements long a modern desktop could perform the
entire scan in 150ms or so.

* fix lint error

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* update strings slightly

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* start on dark theme support

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

* web: Add searchbar and enable it for "selected"

"Available" requires a round-trip to the provider level, so that's next.

* web: provide a search for the dual list multiselect

**This commit**

- Includes a new widget that represents the basic, Patternfly-designed search bar.  It just emits
  events of search request updates.
- Changes the definition of a data provider to take an optional search string.
- Changes the handler in the *independent* layer so that it catches search requests and those
  requests work on the "selected" collection.
- Changes the handler of the `authentik` interface layer so that it catches search requests and
  those requests are sent to the data provider.
- Provides a debounce function for the `authentik` interface layer to not hammer the Django instance
  too much.
- Updates the data providers in the example for `OutpostForm` to handle search requests.
- Provides a property in the `authentik` interface layer so that the debounce can be tuned.

* web: always trim the search string passed.

* web: code quality pass, extra comments, pre-commit check.

* Serious (and bizarre) merge bug.  I guess it doesn't like XML that much.

* Attempting to reason with whatever eslint GitHub is using.

* Prettier has opinions.

* Enable better dark mode.

There were two issues: the dark mode didn't reach into the "search"
bar, and there were several hover states that weren't handled well.

This commit handles both.  The color scheme mirrors the one we
currently use, but it's a bit backwards from Patternfly 5.  Dunno
how we're gonna reconcile all that.

* Prettier fixes and locale extraction

* web: update pagination type to use generic, provided type

* web: fixed a few comment typos

* Discordant version numbers for @go-authentik/api were causing build failures.

* What is up with CI/CD?

* web: missed a lint issue that prevented the build from running successfully

---------

Signed-off-by: Jens Langhammer <jens@goauthentik.io>
Co-authored-by: Jens Langhammer <jens@goauthentik.io>
2024-01-25 10:08:00 -08:00