Hi folks,

I just wanted to highlight some new Royale compiler options that I added
recently.

-js-include-script+=path/to/script.js
-js-include-css+=path/to/styles.css
-js-include-asset+=path/to/file.ext

If you're building a library with compc, these options include the files
into the .swc binary. They're stored in such a way that mxmlc will know
that they need special processing.

If you're building an app with mxmlc, these options copy the files to the
output directory and add appropriate <script> or <link> tags to the
generated .html file. Without requiring a custom HTML template!

When using -js-include-script, the .js files go into bin/js-debug/scripts/
or bin/js-release/scripts/

When using -js-include-css, the .css files go into bin/js-debug/css/ or
bin/js-release/css/

When using -js-include-asset, the files go into bin/js-debug/assets/ or
bin/js-release/assets/

So, as example, if you want to combine -js-include-css and
-js-include-asset together, you'd need to use appropriate relative paths
from your .css file:

background: url("../assets/image.png");

Before this change, we have mainly been using <inject_script> in asdoc
comments for similar purposes. This allowed us to reference .js or .css
files from web URLs. For example, FontAwesomeIcon.as has an <inject_script>
that inserts the stylesheet from the following URL using
document.createElement("link"):

https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css

There really wasn't a good way to bundle font-awesome.min.css into
FontAwesome.swc to avoid requiring that third-party CDN or to support
offline use, though.

However, these new options now make that possible.

There is one difference from <inject_script> that is worth noting.
<inject_script> was associated with a specific class. If you didn't use
that class in your app, the script wasn't injected.

These options associate the script/css/asset with an entire .swc instead of
specific classes in the .swc. The idea is to use them when all classes from
the library require the script/css, and you don't need to annotate every
single class separately. In other words, it's particularly useful for
creating typedef/externs .swc files.

I'm definitely open to adding a way to associate a script/css/asset with a
specific class only, but I think that this is already a big improvement
over the status quo.

--
Josh Tynjala
Bowler Hat LLC
https://bowlerhat.dev/

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