bunteshaus.de/themes/buha/layouts/partials/snippets/banner.html

{{ $title := .Title }}
{{ $title = singularize $title }}
{{ $title = i18n $title }}
{{ if not $title }}
    {{ $title = .Title }}
{{ end }}
{{ $good_w := "1920"}}
{{ $good_h := "850"}}
{{ $what := "none" }}
{{ $missing := "" }}
{{ $banner := "" }}
{{ $img := "none" }}
{{ if eq .Kind "home" }}
    {{ $what = "home" }}
    {{ $banner = "home" }}
{{ else if eq .Kind "page" }}
    {{ with .File }}
        {{ $what = .File.ContentBaseName }}
        {{ $banner = $what }}
    {{ end }}
{{ else if or (eq .Kind "term") (eq .Kind "taxonomy") }}
        {{ if (eq .Kind "taxonomy") }}
            {{ $what = .Data.Singular | lower }}
        {{ else }}
            {{ $what = .Name | lower }}
        {{ end }}
        {{ $banner = string (printf "/images/banner/%s/%s*" .Kind $what) }}
{{ end }}
{{ $missing := $banner }}
{{ $title_class := safeCSS "title" }}
{{ $css := safeCSS "b" }}
{{ if .IsHome }}
    {{ $css = safeCSS "b_index" }}
    {{ $title_class = safeCSS "title_index" }}
{{ end }}

{{ if resources.GetMatch $banner }}
    {{  $img = resources.GetMatch $banner }}
{{ end }}
{{ $single := false }}
{{ if and (in .File "news/") (not (in .File "_index"))}}
    {{ $single = true }}
{{ end }}
{{ if and (ne $img "none") (ne .Params.banner false) }}
    <div style="background-image: url({{- $img.Permalink -}})" class="banner {{ $css }}">
        {{ if not .IsHome }}<h1 class="{{ $title_class }}">{{ $title }}</h1> {{ end }}
        {{ if eq hugo.Environment "development" }}
            <div style="color: red;">
                {{ $w := (resources.GetMatch $banner).Width }}
                {{ $h := (resources.GetMatch $banner).Height }}
                {{ if lt (int $w) $good_w }}
                    {{ if eq hugo.Environment "development" }}
                        Width: {{ $w }}px: too small, must be {{ $good_w -}}px in width<br>
                    {{ end }}
                {{ else if gt (int $w) $good_w }}
                    {{ if eq hugo.Environment "development" }}
                        Width: {{ $w }}px: too big, must be {{ $good_w -}}px in width<br>
                    {{ end }}
                {{ end }}
                {{ if lt (int $h) $good_h }}
                    {{ if eq hugo.Environment "development" }}
                        Height: {{ $h }}px: too small, must be {{ $good_h -}}px in height<br>
                    {{ end }}
                {{ else if gt (int $h) $good_h }}
                    {{ if eq hugo.Environment "development" }}
                        Height: {{ $h }}px: too big, must be {{ $good_h -}}px in height<br>
                    {{ end }}
                {{ end }}
            </div>
        {{ end }}
    </div>
{{ else if and (.Resources.Match "banner*") (ne .Params.banner false) }}
        {{ $img = .Resources.GetMatch "banner*" }}
    <div style="background-image:url({{- $img.Permalink -}})" class="banner {{ $css }}">
        {{ if not .IsHome }}<h1 class="{{ $title_class }}">{{ $title }}</h1> {{ end }}
        {{ if eq hugo.Environment "development" }}
            <div style="color: red;">
                {{ $w :=  (index (.Resources.Match "banner*") 0).Width }}
                {{ $h := (index (.Resources.Match "banner*") 0).Height }}
                {{ if lt (int $w) $good_w }}
                    {{ if eq hugo.Environment "development" }}
                        Width: {{ $w }}px: too small, must be {{ $good_w -}}px in width<br>
                    {{ end }}
                {{ else if gt (int $w) $good_w }}
                    {{ if eq hugo.Environment "development" }}
                        Width: {{ $w }}px: too big, must be {{ $good_w -}}px in width<br>
                    {{ end }}
                {{ end }}
                {{ if lt (int $h) $good_h }}
                    {{ if eq hugo.Environment "development" }}
                        Height: {{ $h }}px: too small, must be {{ $good_h -}}px in height<br>
                    {{ end }}
                {{ else if gt (int $h) $good_h }}
                    {{ if eq hugo.Environment "development" }}
                        Height: {{ $h }}px: too big, must be {{ $good_h -}}px in height<br>
                    {{ end }}
                {{ end }}
            </div>
        {{ end }}
    </div>
{{ else }}
    <div class="banner non_banner_height">
        {{ if not .IsHome }}<h1 class="{{ $title_class }}">{{ $title }}</h1> {{ end }}
        {{ if eq hugo.Environment "development" }}
            {{ $str1 := printf "assets%s missing.." $missing }}
            {{ $str2 := "" }}
            {{ with .File }}
                {{ $str2 = printf "content/%sbanner* missing.." .Dir }}
            {{ end }}
            <p>
                {{ if eq .Params.banner false }}
                    banner is off
                {{ else }}
                    {{ if eq $single true }}
                        {{ $str2 }}
                    {{ else if eq $single false }}
                        {{ $str1 }}
                    {{ end }}
                {{ end }}
            </p>
        {{ end }}
    </div>
{{ end }}