[Icon] Bye bye `tabler_icon` ➡️ Welcome Symfony UX Icon 🎉

[cavasinf]

As already discussed in #17, we've got a gap in how to handle icons in this bundle:

• Lib Tabler icons? not really (as it should because of the theme)
• Lib FontAwesome icon (which version? How to switch to Tabler? ...)
• <svg>? <i>?
• Tabler's 'icon' class that doesn't work at all with FontAwesome

Possible solution

We've been using Symfony Ux icon for the past months and it's been a total game-changer! It works like a charm and the best part is how easy it is to switch between icon sets (Bootstrap, Tabler, FontAwesome). And we can send the search page to our clients and let them find what they like on their own. Furthermore, they can provide us with their SVG icons, which we can incorporate into our Symfony application.

Great feature of today's bundle icons

The best part of tabler_icon today is the shortcut/library of words that are equal to an icon:

tabler:
   icons:
      issue: fas fa-bug

Same concept with UX Icon

But we ended to reproduce this same feature with UX Icon.

1. By "importing" (downloading) the icon:

     php bin/console ux:icons:import tabler:bug

   Downloaded at: assets/icons/tabler/bug.svg

2. Rename it to our "shortcut" and move it to the parent icon folder: assets/icons/issue.svg

3. We can now call it like this:

   • {{ ux_icon('issue') }}
   • Or with twig component: <twig:ux:icon name="issue" />

TablerBundle pros

With that external bundle, we can get out of a tight spot with "custom" code that isn't related to the Tabler theme Plus, we get to remove code to maintain!

TablerBundle cons

• Deprecating tabler_icon 😢

WDYT ?

[cavasinf]

Pinging @tacman as he likes TwigComponent 😉

[tacman]

Indeed! The new UX Icon component is very cool.

[kevinpapst]

Do I understand that correct: the biggest benefit from this bundle perspective is, that the icon class finally works as expected? Thats great, I could remove quite some workarounds.

Even though I fear what might break 😁 but then I could document the required steps for the community.

Yes, I don't mind deprecating it, if there is an "official" replacement and the UX initiative is much better than this bundles code anyway.

The docs need to be adjusted and some deprecation trigger added. Do you want to do it @cavasinf ?

[kevinpapst]

Oh btw: what is your experience performance wise? Dozens small files are better than one large icon font file?

[tacman]

I think that because the ux components integrate with AssetMapper, the icon files are all precached and so there's no performance impact.

[kevinpapst]

I added a first PR draft. Works, but most icons still looks shitty in my app. There is a huge ? for me as of now, concerning the caching of the icons.

[cavasinf]

the biggest benefit from this bundle perspective is, that the icon class finally works as expected?

icon class is made for <svg> not <i> (fontawesome) , this bundle works with <svg> Example with btn:

.btn .icon {
  width: var(--tblr-btn-icon-size);
  height: var(--tblr-btn-icon-size);
  min-width: var(--tblr-btn-icon-size);
  margin: 0 calc(var(--tblr-btn-padding-x)/ 2) 0 calc(var(--tblr-btn-padding-x)/ -4);
  vertical-align: bottom;
  color: inherit;
}

.icon {
  --tblr-icon-size: 1.25rem;
  width: var(--tblr-icon-size);
  height: var(--tblr-icon-size);
  font-size: var(--tblr-icon-size);
  vertical-align: bottom;
  stroke-width: 1.5;
}

Works, but most icons still looks shitty in my app.

Can you share some screenshots?

There is a huge ? for me as of now, concerning the caching of the icons.

~Language barrier, I don't understand this sentence at all 😄~ I get it now, are your cache/size/latency tests done in dev or prod mode?

[kevinpapst]

I get it now, are your cache/size/latency tests done in dev or prod mode?

I haven't done any tests yet, I just read the documentation which states that

Icons that have a name built dynamically will not be cached.

Maybe that is just worded badly, but I don't want to risk 50+ additional disk reads (for tiny SVG files) for every request. Each item of the navigation has a dynamic name and then a lot of other button elements in my UI as well.

[kevinpapst]

Just some examples... these problems are all over the app. But I guess this is just two or three places that need some fixing.

Before with Fontawesome webfont:

With SVGs: