manuelcillero/pagetop
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✨ (html): Añade Preload para precarga de recursos

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Nuevo tipo `Preload` (junto a `StyleSheet` y `JavaScript`) que emite
`<link rel="preload">` con soporte para fuentes, estilos, scripts e
imágenes (WebP y AVIF incluidos). Bootsier lo usa para precargar las
fuentes Source Sans 3 y eliminar el FOUT en la carga inicial.
This commit is contained in:
Manuel Cillero 2026-07-07 00:03:36 +02:00
parent 9b2d430d8b
commit c7b680a7f7
6 changed files with 232 additions and 3 deletions
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1
extensions/pagetop-bootsier/assets/_bootsier-custom.scss
View file

@ -2,6 +2,7 @@
// Self-hosted Source Sans 3 (SIL OFL 1.1), served from /bootsier/fonts.
// Required by AdminLTE 4, which declares it as the primary font family in $font-family-sans-serif.
// Font URLs must match the Preload declarations in src/lib.rs; a mismatch causes double downloads.
@font-face {
font-family: "Source Sans 3";
src: url("/bootsier/fonts/bootsier.font.woff2") format("woff2");

12
extensions/pagetop-bootsier/src/lib.rs
View file

@ -155,7 +155,15 @@ impl Theme for Bootsier {
}
fn before_render_page_body(&self, page: &mut Page) {
page.alter_assets(AssetsOp::AddStyleSheet(
// Las URLs de las fuentes deben coincidir exactamente con las declaradas en @font-face de
// _bootsier-custom.scss; cualquier discrepancia hace que el navegador descargue dos veces.
page.alter_assets(AssetsOp::AddPreload(
Preload::font("/bootsier/fonts/bootsier.font.woff2").with_weight(-99),
))
.alter_assets(AssetsOp::AddPreload(
Preload::font("/bootsier/fonts/bootsier.font.italic.woff2").with_weight(-99),
))
.alter_assets(AssetsOp::AddStyleSheet(
StyleSheet::from("/bootsier/css/bootsier.min.css")
.with_version(ADMINLTE_VERSION)
.with_weight(-90),
@ -168,7 +176,7 @@ impl Theme for Bootsier {
.alter_assets(AssetsOp::AddJavaScript(
JavaScript::defer("/bootsier/js/bootsier.extended.min.js")
.with_version(ADMINLTE_VERSION)
.with_weight(-89),
.with_weight(-90),
))
.alter_child_in(
&DefaultRegion::Footer,