tpl: Add a terse pagination template variant to improve performance

These calls are equivalent:

{{ template "_internal/pagination.html" . }}
{{ template "_internal/pagination.html" (dict "page" .) }}
{{ template "_internal/pagination.html" (dict "page" . "format" "default") }}

To use an alternate format:

{{ template "_internal/pagination.html" (dict "page" . "format" "terse") }}

Fixes #8599
This commit is contained in:
Joe Mooring 2021-06-08 01:41:21 -07:00 committed by GitHub
parent 9b5debe4b8
commit 73483d0f9e
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3 changed files with 343 additions and 86 deletions

View file

@ -116,3 +116,42 @@ Disqus:
// Disqus
b.AssertFileContent("public/index.html", "\"disqus_shortname\" + '.disqus.com/embed.js';")
}
func TestEmbeddedPaginationTemplate(t *testing.T) {
t.Parallel()
test := func(variant string, expectedOutput string) {
b := newTestSitesBuilder(t)
b.WithConfigFile("toml", `paginate = 1`)
b.WithContent(
"s1/p01.md", "---\ntitle: p01\n---",
"s1/p02.md", "---\ntitle: p02\n---",
"s1/p03.md", "---\ntitle: p03\n---",
"s1/p04.md", "---\ntitle: p04\n---",
"s1/p05.md", "---\ntitle: p05\n---",
"s1/p06.md", "---\ntitle: p06\n---",
"s1/p07.md", "---\ntitle: p07\n---",
"s1/p08.md", "---\ntitle: p08\n---",
"s1/p09.md", "---\ntitle: p09\n---",
"s1/p10.md", "---\ntitle: p10\n---",
)
b.WithTemplates("index.html", `{{ .Paginate (where site.RegularPages "Section" "s1") }}`+variant)
b.Build(BuildCfg{})
b.AssertFileContent("public/index.html", expectedOutput)
}
expectedOutputDefaultFormat := "Pager 1\n <ul class=\"pagination pagination-default\">\n <li class=\"page-item disabled\">\n <a href=\"#\" aria-disabled=\"true\" aria-label=\"First\" class=\"page-link\" role=\"button\"><span aria-hidden=\"true\">&laquo;&laquo;</span></a>\n </li>\n <li class=\"page-item disabled\">\n <a href=\"#\" aria-disabled=\"true\" aria-label=\"Previous\" class=\"page-link\" role=\"button\"><span aria-hidden=\"true\">&laquo;</span></a>\n </li>\n <li class=\"page-item active\">\n <a href=\"#\" aria-current=\"page\" aria-label=\"Page 1\" class=\"page-link\" role=\"button\">1</a>\n </li>\n <li class=\"page-item\">\n <a href=\"/page/2/\" aria-label=\"Page 2\" class=\"page-link\" role=\"button\">2</a>\n </li>\n <li class=\"page-item\">\n <a href=\"/page/3/\" aria-label=\"Page 3\" class=\"page-link\" role=\"button\">3</a>\n </li>\n <li class=\"page-item\">\n <a href=\"/page/4/\" aria-label=\"Page 4\" class=\"page-link\" role=\"button\">4</a>\n </li>\n <li class=\"page-item\">\n <a href=\"/page/5/\" aria-label=\"Page 5\" class=\"page-link\" role=\"button\">5</a>\n </li>\n <li class=\"page-item\">\n <a href=\"/page/2/\" aria-label=\"Next\" class=\"page-link\" role=\"button\"><span aria-hidden=\"true\">&raquo;</span></a>\n </li>\n <li class=\"page-item\">\n <a href=\"/page/10/\" aria-label=\"Last\" class=\"page-link\" role=\"button\"><span aria-hidden=\"true\">&raquo;&raquo;</span></a>\n </li>\n </ul>"
expectedOutputTerseFormat := "Pager 1\n <ul class=\"pagination pagination-terse\">\n <li class=\"page-item active\">\n <a href=\"#\" aria-current=\"page\" aria-label=\"Page 1\" class=\"page-link\" role=\"button\">1</a>\n </li>\n <li class=\"page-item\">\n <a href=\"/page/2/\" aria-label=\"Page 2\" class=\"page-link\" role=\"button\">2</a>\n </li>\n <li class=\"page-item\">\n <a href=\"/page/3/\" aria-label=\"Page 3\" class=\"page-link\" role=\"button\">3</a>\n </li>\n <li class=\"page-item\">\n <a href=\"/page/2/\" aria-label=\"Next\" class=\"page-link\" role=\"button\"><span aria-hidden=\"true\">&raquo;</span></a>\n </li>\n <li class=\"page-item\">\n <a href=\"/page/10/\" aria-label=\"Last\" class=\"page-link\" role=\"button\"><span aria-hidden=\"true\">&raquo;&raquo;</span></a>\n </li>\n </ul>"
variant := `{{ template "_internal/pagination.html" . }}`
test(variant, expectedOutputDefaultFormat)
variant = `{{ template "_internal/pagination.html" (dict "page" .) }}`
test(variant, expectedOutputDefaultFormat)
variant = `{{ template "_internal/pagination.html" (dict "page" . "format" "default") }}`
test(variant, expectedOutputDefaultFormat)
variant = `{{ template "_internal/pagination.html" (dict "page" . "format" "terse") }}`
test(variant, expectedOutputTerseFormat)
}

View file

@ -248,51 +248,160 @@ if (!doNotTrack) {
{{- /* Facebook Page Admin ID for Domain Insights */}}
{{- with .Site.Social.facebook_admin }}<meta property="fb:admins" content="{{ . }}" />{{ end }}
`},
{`pagination.html`, `{{ $pag := $.Paginator }}
{{ if gt $pag.TotalPages 1 -}}
<ul class="pagination">
{{ with $pag.First -}}
<li class="page-item">
<a href="{{ .URL }}" class="page-link" aria-label="First"><span aria-hidden="true">&laquo;&laquo;</span></a>
</li>
{{ end -}}
<li class="page-item{{ if not $pag.HasPrev }} disabled{{ end }}">
<a {{ if $pag.HasPrev }}href="{{ $pag.Prev.URL }}"{{ end }} class="page-link" aria-label="Previous"><span aria-hidden="true">&laquo;</span></a>
</li>
{{- $ellipsed := false -}}
{{- $shouldEllipse := false -}}
{{- range $pag.Pagers -}}
{{- $right := sub .TotalPages .PageNumber -}}
{{- $showNumber := or (le .PageNumber 3) (eq $right 0) -}}
{{- $showNumber := or $showNumber (le .TotalPages 5) -}}{{/* Issue #7523 */}}
{{- $showNumber := or $showNumber (and (gt .PageNumber (sub $pag.PageNumber 2)) (lt .PageNumber (add $pag.PageNumber 2))) -}}
{{- if $showNumber -}}
{{- $ellipsed = false -}}
{{- $shouldEllipse = false -}}
{{- else -}}
{{- $shouldEllipse = not $ellipsed -}}
{{- $ellipsed = true -}}
{{- end -}}
{{- if $showNumber }}
<li class="page-item{{ if eq . $pag }} active{{ end }}">
<a class="page-link" href="{{ .URL }}">{{ .PageNumber }}</a>
</li>
{{- else if $shouldEllipse }}
<li class="page-item disabled">
<span aria-hidden="true">&nbsp;&hellip;&nbsp;</span>
</li>
{{- end -}}
{`pagination.html`, `{{- $validFormats := slice "default" "terse" }}
{{- $msg1 := "When passing a map to the internal pagination template, one of the elements must be named 'page', and it must be set to the context of the current page." }}
{{- $msg2 := "The 'format' specified in the map passed to the internal pagination template is invalid. Valid choices are: %s." }}
{{- $page := . }}
{{- $format := "default" }}
{{- if reflect.IsMap . }}
{{- with .page }}
{{- $page = . }}
{{- else }}
{{- errorf $msg1 }}
{{- end }}
<li class="page-item{{ if not $pag.HasNext }} disabled{{ end }}">
<a {{ if $pag.HasNext }}href="{{ $pag.Next.URL }}"{{ end }} class="page-link" aria-label="Next"><span aria-hidden="true">&raquo;</span></a>
</li>
{{- with $pag.Last }}
<li class="page-item">
<a href="{{ .URL }}" class="page-link" aria-label="Last"><span aria-hidden="true">&raquo;&raquo;</span></a>
</li>
{{- with .format }}
{{- $format = lower . }}
{{- end }}
</ul>
{{ end }}
{{- end }}
{{- if in $validFormats $format }}
{{- if gt $page.Paginator.TotalPages 1 }}
<ul class="pagination pagination-{{ $format }}">
{{- partial (printf "partials/inline/pagination/%s" $format) $page }}
</ul>
{{- end }}
{{- else }}
{{- errorf $msg2 (delimit $validFormats ", ") }}
{{- end -}}
{{/* Format: default
{{/* --------------------------------------------------------------------- */}}
{{- define "partials/inline/pagination/default" }}
{{- with .Paginator }}
{{- $currentPageNumber := .PageNumber }}
{{- with .First }}
{{- if ne $currentPageNumber .PageNumber }}
<li class="page-item">
<a href="{{ .URL }}" aria-label="First" class="page-link" role="button"><span aria-hidden="true">&laquo;&laquo;</span></a>
</li>
{{- else }}
<li class="page-item disabled">
<a href="#" aria-disabled="true" aria-label="First" class="page-link" role="button"><span aria-hidden="true">&laquo;&laquo;</span></a>
</li>
{{- end }}
{{- end }}
{{- with .Prev }}
<li class="page-item">
<a href="{{ .URL }}" aria-label="Previous" class="page-link" role="button"><span aria-hidden="true">&laquo;</span></a>
</li>
{{- else }}
<li class="page-item disabled">
<a href="#" aria-disabled="true" aria-label="Previous" class="page-link" role="button"><span aria-hidden="true">&laquo;</span></a>
</li>
{{- end }}
{{- $slots := 5 }}
{{- $start := math.Max 1 (sub .PageNumber (math.Floor (div $slots 2))) }}
{{- $end := math.Min .TotalPages (sub (add $start $slots) 1) }}
{{- if lt (add (sub $end $start) 1) $slots }}
{{- $start = math.Max 1 (add (sub $end $slots) 1) }}
{{- end }}
{{- range $k := seq $start $end }}
{{- if eq $.Paginator.PageNumber $k }}
<li class="page-item active">
<a href="#" aria-current="page" aria-label="Page {{ $k }}" class="page-link" role="button">{{ $k }}</a>
</li>
{{- else }}
<li class="page-item">
<a href="{{ (index $.Paginator.Pagers (sub $k 1)).URL }}" aria-label="Page {{ $k }}" class="page-link" role="button">{{ $k }}</a>
</li>
{{- end }}
{{- end }}
{{- with .Next }}
<li class="page-item">
<a href="{{ .URL }}" aria-label="Next" class="page-link" role="button"><span aria-hidden="true">&raquo;</span></a>
</li>
{{- else }}
<li class="page-item disabled">
<a href="#" aria-disabled="true" aria-label="Next" class="page-link" role="button"><span aria-hidden="true">&raquo;</span></a>
</li>
{{- end }}
{{- with .Last }}
{{- if ne $currentPageNumber .PageNumber }}
<li class="page-item">
<a href="{{ .URL }}" aria-label="Last" class="page-link" role="button"><span aria-hidden="true">&raquo;&raquo;</span></a>
</li>
{{- else }}
<li class="page-item disabled">
<a href="#" aria-disabled="true" aria-label="Last" class="page-link" role="button"><span aria-hidden="true">&raquo;&raquo;</span></a>
</li>
{{- end }}
{{- end }}
{{- end }}
{{- end -}}
{{/* Format: terse
{{/* --------------------------------------------------------------------- */}}
{{- define "partials/inline/pagination/terse" }}
{{- with .Paginator }}
{{- $currentPageNumber := .PageNumber }}
{{- with .First }}
{{- if ne $currentPageNumber .PageNumber }}
<li class="page-item">
<a href="{{ .URL }}" aria-label="First" class="page-link" role="button"><span aria-hidden="true">&laquo;&laquo;</span></a>
</li>
{{- end }}
{{- end }}
{{- with .Prev }}
<li class="page-item">
<a href="{{ .URL }}" aria-label="Previous" class="page-link" role="button"><span aria-hidden="true">&laquo;</span></a>
</li>
{{- end }}
{{- $slots := 3 }}
{{- $start := math.Max 1 (sub .PageNumber (math.Floor (div $slots 2))) }}
{{- $end := math.Min .TotalPages (sub (add $start $slots) 1) }}
{{- if lt (add (sub $end $start) 1) $slots }}
{{- $start = math.Max 1 (add (sub $end $slots) 1) }}
{{- end }}
{{- range $k := seq $start $end }}
{{- if eq $.Paginator.PageNumber $k }}
<li class="page-item active">
<a href="#" aria-current="page" aria-label="Page {{ $k }}" class="page-link" role="button">{{ $k }}</a>
</li>
{{- else }}
<li class="page-item">
<a href="{{ (index $.Paginator.Pagers (sub $k 1)).URL }}" aria-label="Page {{ $k }}" class="page-link" role="button">{{ $k }}</a>
</li>
{{- end }}
{{- end }}
{{- with .Next }}
<li class="page-item">
<a href="{{ .URL }}" aria-label="Next" class="page-link" role="button"><span aria-hidden="true">&raquo;</span></a>
</li>
{{- end }}
{{- with .Last }}
{{- if ne $currentPageNumber .PageNumber }}
<li class="page-item">
<a href="{{ .URL }}" aria-label="Last" class="page-link" role="button"><span aria-hidden="true">&raquo;&raquo;</span></a>
</li>
{{- end }}
{{- end }}
{{- end }}
{{- end -}}
`},
{`schema.html`, `<meta itemprop="name" content="{{ .Title }}">
<meta itemprop="description" content="{{ with .Description }}{{ . }}{{ else }}{{if .IsPage}}{{ .Summary }}{{ else }}{{ with .Site.Params.description }}{{ . }}{{ end }}{{ end }}{{ end }}">

View file

@ -1,45 +1,154 @@
{{ $pag := $.Paginator }}
{{ if gt $pag.TotalPages 1 -}}
<ul class="pagination">
{{ with $pag.First -}}
<li class="page-item">
<a href="{{ .URL }}" class="page-link" aria-label="First"><span aria-hidden="true">&laquo;&laquo;</span></a>
</li>
{{ end -}}
<li class="page-item{{ if not $pag.HasPrev }} disabled{{ end }}">
<a {{ if $pag.HasPrev }}href="{{ $pag.Prev.URL }}"{{ end }} class="page-link" aria-label="Previous"><span aria-hidden="true">&laquo;</span></a>
</li>
{{- $ellipsed := false -}}
{{- $shouldEllipse := false -}}
{{- range $pag.Pagers -}}
{{- $right := sub .TotalPages .PageNumber -}}
{{- $showNumber := or (le .PageNumber 3) (eq $right 0) -}}
{{- $showNumber := or $showNumber (le .TotalPages 5) -}}{{/* Issue #7523 */}}
{{- $showNumber := or $showNumber (and (gt .PageNumber (sub $pag.PageNumber 2)) (lt .PageNumber (add $pag.PageNumber 2))) -}}
{{- if $showNumber -}}
{{- $ellipsed = false -}}
{{- $shouldEllipse = false -}}
{{- else -}}
{{- $shouldEllipse = not $ellipsed -}}
{{- $ellipsed = true -}}
{{- end -}}
{{- if $showNumber }}
<li class="page-item{{ if eq . $pag }} active{{ end }}">
<a class="page-link" href="{{ .URL }}">{{ .PageNumber }}</a>
</li>
{{- else if $shouldEllipse }}
<li class="page-item disabled">
<span aria-hidden="true">&nbsp;&hellip;&nbsp;</span>
</li>
{{- end -}}
{{- $validFormats := slice "default" "terse" }}
{{- $msg1 := "When passing a map to the internal pagination template, one of the elements must be named 'page', and it must be set to the context of the current page." }}
{{- $msg2 := "The 'format' specified in the map passed to the internal pagination template is invalid. Valid choices are: %s." }}
{{- $page := . }}
{{- $format := "default" }}
{{- if reflect.IsMap . }}
{{- with .page }}
{{- $page = . }}
{{- else }}
{{- errorf $msg1 }}
{{- end }}
<li class="page-item{{ if not $pag.HasNext }} disabled{{ end }}">
<a {{ if $pag.HasNext }}href="{{ $pag.Next.URL }}"{{ end }} class="page-link" aria-label="Next"><span aria-hidden="true">&raquo;</span></a>
</li>
{{- with $pag.Last }}
<li class="page-item">
<a href="{{ .URL }}" class="page-link" aria-label="Last"><span aria-hidden="true">&raquo;&raquo;</span></a>
</li>
{{- with .format }}
{{- $format = lower . }}
{{- end }}
</ul>
{{ end }}
{{- end }}
{{- if in $validFormats $format }}
{{- if gt $page.Paginator.TotalPages 1 }}
<ul class="pagination pagination-{{ $format }}">
{{- partial (printf "partials/inline/pagination/%s" $format) $page }}
</ul>
{{- end }}
{{- else }}
{{- errorf $msg2 (delimit $validFormats ", ") }}
{{- end -}}
{{/* Format: default
{{/* --------------------------------------------------------------------- */}}
{{- define "partials/inline/pagination/default" }}
{{- with .Paginator }}
{{- $currentPageNumber := .PageNumber }}
{{- with .First }}
{{- if ne $currentPageNumber .PageNumber }}
<li class="page-item">
<a href="{{ .URL }}" aria-label="First" class="page-link" role="button"><span aria-hidden="true">&laquo;&laquo;</span></a>
</li>
{{- else }}
<li class="page-item disabled">
<a href="#" aria-disabled="true" aria-label="First" class="page-link" role="button"><span aria-hidden="true">&laquo;&laquo;</span></a>
</li>
{{- end }}
{{- end }}
{{- with .Prev }}
<li class="page-item">
<a href="{{ .URL }}" aria-label="Previous" class="page-link" role="button"><span aria-hidden="true">&laquo;</span></a>
</li>
{{- else }}
<li class="page-item disabled">
<a href="#" aria-disabled="true" aria-label="Previous" class="page-link" role="button"><span aria-hidden="true">&laquo;</span></a>
</li>
{{- end }}
{{- $slots := 5 }}
{{- $start := math.Max 1 (sub .PageNumber (math.Floor (div $slots 2))) }}
{{- $end := math.Min .TotalPages (sub (add $start $slots) 1) }}
{{- if lt (add (sub $end $start) 1) $slots }}
{{- $start = math.Max 1 (add (sub $end $slots) 1) }}
{{- end }}
{{- range $k := seq $start $end }}
{{- if eq $.Paginator.PageNumber $k }}
<li class="page-item active">
<a href="#" aria-current="page" aria-label="Page {{ $k }}" class="page-link" role="button">{{ $k }}</a>
</li>
{{- else }}
<li class="page-item">
<a href="{{ (index $.Paginator.Pagers (sub $k 1)).URL }}" aria-label="Page {{ $k }}" class="page-link" role="button">{{ $k }}</a>
</li>
{{- end }}
{{- end }}
{{- with .Next }}
<li class="page-item">
<a href="{{ .URL }}" aria-label="Next" class="page-link" role="button"><span aria-hidden="true">&raquo;</span></a>
</li>
{{- else }}
<li class="page-item disabled">
<a href="#" aria-disabled="true" aria-label="Next" class="page-link" role="button"><span aria-hidden="true">&raquo;</span></a>
</li>
{{- end }}
{{- with .Last }}
{{- if ne $currentPageNumber .PageNumber }}
<li class="page-item">
<a href="{{ .URL }}" aria-label="Last" class="page-link" role="button"><span aria-hidden="true">&raquo;&raquo;</span></a>
</li>
{{- else }}
<li class="page-item disabled">
<a href="#" aria-disabled="true" aria-label="Last" class="page-link" role="button"><span aria-hidden="true">&raquo;&raquo;</span></a>
</li>
{{- end }}
{{- end }}
{{- end }}
{{- end -}}
{{/* Format: terse
{{/* --------------------------------------------------------------------- */}}
{{- define "partials/inline/pagination/terse" }}
{{- with .Paginator }}
{{- $currentPageNumber := .PageNumber }}
{{- with .First }}
{{- if ne $currentPageNumber .PageNumber }}
<li class="page-item">
<a href="{{ .URL }}" aria-label="First" class="page-link" role="button"><span aria-hidden="true">&laquo;&laquo;</span></a>
</li>
{{- end }}
{{- end }}
{{- with .Prev }}
<li class="page-item">
<a href="{{ .URL }}" aria-label="Previous" class="page-link" role="button"><span aria-hidden="true">&laquo;</span></a>
</li>
{{- end }}
{{- $slots := 3 }}
{{- $start := math.Max 1 (sub .PageNumber (math.Floor (div $slots 2))) }}
{{- $end := math.Min .TotalPages (sub (add $start $slots) 1) }}
{{- if lt (add (sub $end $start) 1) $slots }}
{{- $start = math.Max 1 (add (sub $end $slots) 1) }}
{{- end }}
{{- range $k := seq $start $end }}
{{- if eq $.Paginator.PageNumber $k }}
<li class="page-item active">
<a href="#" aria-current="page" aria-label="Page {{ $k }}" class="page-link" role="button">{{ $k }}</a>
</li>
{{- else }}
<li class="page-item">
<a href="{{ (index $.Paginator.Pagers (sub $k 1)).URL }}" aria-label="Page {{ $k }}" class="page-link" role="button">{{ $k }}</a>
</li>
{{- end }}
{{- end }}
{{- with .Next }}
<li class="page-item">
<a href="{{ .URL }}" aria-label="Next" class="page-link" role="button"><span aria-hidden="true">&raquo;</span></a>
</li>
{{- end }}
{{- with .Last }}
{{- if ne $currentPageNumber .PageNumber }}
<li class="page-item">
<a href="{{ .URL }}" aria-label="Last" class="page-link" role="button"><span aria-hidden="true">&raquo;&raquo;</span></a>
</li>
{{- end }}
{{- end }}
{{- end }}
{{- end -}}