92 lines
3.2 KiB
Typst
92 lines
3.2 KiB
Typst
#import "./custom_html.typ" as chtml
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#import "./html_utils.typ": get-css
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/// Generate the html <head> element for the page.
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#let html_head(
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/// Page url,
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url,
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/// Title of the page
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title,
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/// Path to the icon (TODO: /!\ must be an url, typst image not yet supported)
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icon,
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/// Type of the page for open-graph data
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og-type: "website",
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/// Name of the site for metadata of the page
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site-name: none,
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/// Description of the site for metadata, default to document.description
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description: none,
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/// Author of the site for metadata, default to document.author
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author: none,
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/// Additional stylesheet for the page: must be a list of url
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stylesheets: (),
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/// List of related sites for metadata
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me-links: (),
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) = {
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html.head({
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html.meta(charset: "utf-8")
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if title != none {
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html.title(title)
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} else { context {
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html.title(document.title)
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}}
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// html.meta(http-equiv: "Content-Language", content: "en") Obsolet, now use the html tag attr "lang" instead
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// The width=device-width part sets the width of the page to follow the screen-width of the device (which will vary depending on the device).
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// The initial-scale=1.0 part sets the initial zoom level when the page is first loaded by the browser.
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html.meta(name: "viewport", content: "width=device-width, initial-scale=1.0")
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// Only set the Referer header for out request to the same origin
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html.meta(name: "referrer", content: "same-origin")
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if icon != none {
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html.link(rel: "icon", type: "image/png", href: icon)
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}
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// Open Graph (https://ogp.me/), used by social media for link previsualisation
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if title != none {
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chtml.meta-og(property: "og:title", content: title)
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} else { context {
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if document.title != none {
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assert(document.title.has("text"), message: "document.title must be a string")
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chtml.meta-og(property: "og:title", content: document.title.at("text"))
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}
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}}
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chtml.meta-og(property: "og:type", content: og-type)
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chtml.meta-og(property: "og:url", content: url)
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if icon != none {
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chtml.meta-og(property: "og:image", content: icon) // TODO: right now the logo need to be the full URL
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}
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if site-name != none {
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chtml.meta-og(property: "og:site_name", content: site-name)
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}
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if description != none {
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chtml.meta-og(property: "og:description", content: description)
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}
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// Check https://www.w3schools.com/tags/att_link_rel.asp for other interesting link rel
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for stylesheet in stylesheets {
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html.link(rel: "stylesheet", type: "text/css", href: stylesheet)
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}
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for me-link in me-links {
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html.elem("link", attrs: (rel: "me", href: me-link))
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}
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if description != none {
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html.meta(name: "description", content: description)
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} else { context {
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if document.description != none {
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assert(document.description.has("text"), message: "document.description must be a string")
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html.meta(name: "description", content: document.description.at("text"))
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}
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}}
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if author != none {
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html.meta(name: "author", content: author)
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} else { context {
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if document.author != () {
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html.meta(name: "author", content: document.author.join(", "))
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}
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}}
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html.style(get-css())
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})
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}
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