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multiple size variants for images

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Tienson Qin
2025-12-29 09:15:58 +08:00
parent e77690b45b
commit a3d7178124
2 changed files with 213 additions and 18 deletions
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47
deps/publish/src/logseq/publish/render.cljs vendored
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@@ -287,15 +287,58 @@
(str "/asset/" graph-uuid "/" asset-uuid "." asset-type)
:else nil)))
(def ^:private publish-image-variant-sizes
[1024 1600])
(def ^:private publish-image-variant-types
#{"png" "jpg" "jpeg" "webp"})
(def ^:private publish-image-sizes-attr
"(max-width: 640px) 92vw, (max-width: 1024px) 88vw, 920px")
(defn- asset-variant-url
[graph-uuid asset-uuid asset-type variant]
(str "/asset/" graph-uuid "/" asset-uuid "@" variant "." asset-type))
(defn- variant-width
[block size]
(let [asset-width (:logseq.property.asset/width block)
asset-height (:logseq.property.asset/height block)]
(if (and (number? asset-width)
(number? asset-height)
(pos? asset-width)
(pos? asset-height))
(let [max-dim (max asset-width asset-height)
scale (min 1 (/ size max-dim))]
(js/Math.round (* asset-width scale)))
size)))
(defn- asset-node [block ctx]
(let [asset-type (:logseq.property.asset/type block)
asset-url (asset-url block ctx)
external-url (:logseq.property.asset/external-url block)
title (or (:block/title block) (str asset-type))
ext (string/lower-case (or asset-type ""))]
ext (string/lower-case (or asset-type ""))
graph-uuid (:graph-uuid ctx)
asset-uuid (:block/uuid block)
variant? (and (not (string? external-url))
graph-uuid
asset-uuid
(contains? publish-image-variant-types ext))
srcset (when variant?
(->> publish-image-variant-sizes
(map (fn [size]
(let [width (variant-width block size)]
(str (asset-variant-url graph-uuid asset-uuid asset-type size)
" "
width
"w"))))
(string/join ", ")))]
(when asset-url
(cond
(contains? #{"png" "jpg" "jpeg" "gif" "webp" "svg" "bmp" "avif"} ext)
[:img.asset-image {:src asset-url :alt title}]
[:img.asset-image (cond-> {:src asset-url :alt title}
srcset (assoc :srcset srcset :sizes publish-image-sizes-attr))]
(contains? #{"mp4" "webm" "mov"} ext)
[:video.asset-video {:src asset-url :controls true}]