2dc8c5e686
The [downsides of icon fonts] are well-documented, and also, why ship all of the icons when it only uses 14? [downsides of icon fonts]: https://speakerdeck.com/ninjanails/death-to-icon-fonts
53 lines
1.5 KiB
Rust
53 lines
1.5 KiB
Rust
use font_awesome_as_a_crate as fa;
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use handlebars::{
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Context, Handlebars, Helper, Output, RenderContext, RenderError, RenderErrorReason,
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};
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use log::trace;
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use std::str::FromStr;
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pub(crate) fn fa_helper(
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h: &Helper<'_>,
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_r: &Handlebars<'_>,
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_ctx: &Context,
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_rc: &mut RenderContext<'_, '_>,
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out: &mut dyn Output,
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) -> Result<(), RenderError> {
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trace!("fa_helper (handlebars helper)");
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let type_ = h
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.param(0)
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.and_then(|v| v.value().as_str())
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.and_then(|v| fa::Type::from_str(v).ok())
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.ok_or_else(|| {
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RenderErrorReason::Other(
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"Param 0 with String type is required for fontawesome helper.".to_owned(),
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)
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})?;
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let name = h.param(1).and_then(|v| v.value().as_str()).ok_or_else(|| {
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RenderErrorReason::Other(
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"Param 1 with String type is required for fontawesome helper.".to_owned(),
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)
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})?;
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trace!("fa_helper: {} {}", type_, name);
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let name = name
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.strip_prefix("fa-")
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.or_else(|| name.strip_prefix("fab-"))
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.or_else(|| name.strip_prefix("fas-"))
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.unwrap_or(name);
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if let Some(id) = h.param(2).and_then(|v| v.value().as_str()) {
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out.write(&format!("<span class=fa-svg id=\"{}\">", id))?;
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} else {
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out.write("<span class=fa-svg>")?;
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}
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out.write(
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fa::svg(type_, name)
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.map_err(|_| RenderErrorReason::Other(format!("Missing font {}", name)))?,
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)?;
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out.write("</span>")?;
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Ok(())
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}
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