{{ define "RenderImageSimple" -}} {{ .alt }} {{- end }} {{- define "RenderImageResponsive" -}} {{/* Responsive Image The current setting sizes="(min-width: 768px) 50vw, 65vw" makes the iPhone 16 and 16 Pro select a smaller image, while the iPhone 16 Pro Max selects a larger image. Steps: 1. Check the media queries in the `sizes` property. 2. Find the first matching value. For example, on a mobile device with a CSS pixel width of 390px and DPR = 3 (iPhone 13), given setting sizes="(min-width: 768px) 50vw, 100vw", it matches the `100vw` option. 3. Calculate the optimal image size: 390 × 3 × 100% (100vw) = 1170. 4. Find the corresponding match in the `srcset`. To make the browser select a smaller image on mobile devices override the template and change the `sizes` property to "(min-width: 768px) 50vw, 30vw" The sizes="auto" is valid only when loading="lazy". */}} {{- $imgObj := .imgObj -}} {{- $alt := .alt -}} {{- $originalWidth := $imgObj.Width -}} {{- $img800 := $imgObj -}} {{- $img1280 := $imgObj -}} {{- if gt $originalWidth 800 -}} {{- $img800 = $imgObj.Resize "800x" -}} {{- end -}} {{- if gt $originalWidth 1280 -}} {{- $img1280 = $imgObj.Resize "1280x" -}} {{- end -}} {{- $srcset := printf "%s 800w, %s 1280w" $img800.RelPermalink $img1280.RelPermalink -}} {{ $alt }} {{- end -}} {{ define "RenderImageCaption" -}} {{- with .caption }}
{{ . | markdownify }}
{{- end }} {{- end }} {{- $disableImageOptimizationMD := .Page.Site.Params.disableImageOptimizationMD | default false }} {{- $urlStr := .Destination | safeURL -}} {{- $url := urls.Parse $urlStr -}} {{- $altText := .Text }} {{- $caption := .Title }} {{- $isRemote := findRE "^(https?|data)" $url.Scheme }} {{- $resource := "" }} {{- if not $isRemote }} {{- $resource = or ($.Page.Resources.GetMatch $urlStr) (resources.Get $urlStr) }} {{- end }}
{{- if $isRemote }} {{ template "RenderImageSimple" (dict "src" $urlStr "alt" $altText) }} {{- else if $resource }} {{- $isSVG := eq $resource.MediaType.SubType "svg" }} {{- $shouldOptimize := and (not $disableImageOptimizationMD) (not $isSVG) }} {{- if $shouldOptimize }} {{- template "RenderImageResponsive" (dict "imgObj" $resource "alt" $altText) -}} {{- else }} {{ template "RenderImageSimple" (dict "src" $resource.RelPermalink "alt" $altText) }} {{- end }} {{- else }} {{ template "RenderImageSimple" (dict "src" $urlStr "alt" $altText) }} {{- end }} {{ template "RenderImageCaption" (dict "caption" $caption) }}