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Add reference to parent shortcode

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Fixes #1936
This commit is contained in:
Bjørn Erik Pedersen 2016-03-08 20:56:24 +01:00
parent 866176be97
commit 9896cd0030
3 changed files with 18 additions and 4 deletions
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2
docs/content/extras/shortcodes.md
View file

@ -273,6 +273,8 @@ such as `{{ if .IsNamedParams }}...{{ else }}...{{ end }}`. See the
You can also use the variable `.Page` to access all the normal [Page Variables](/templates/variables/).
A shortcodes can be nested. In a nested shortcode you can access the parent shortcode context with `.Parent`. This can be very useful for inheritance of common shortcode parameters from the root.
## Single Positional Example: youtube
{{</* youtube 09jf3ow9jfw */>}}

9
hugolib/shortcode.go
View file

@ -34,6 +34,7 @@ type ShortcodeWithPage struct {
Params interface{}
Inner template.HTML
Page *Page
Parent *ShortcodeWithPage
IsNamedParams bool
}
@ -189,7 +190,7 @@ const innerNewlineRegexp = "\n"
const innerCleanupRegexp = `\A<p>(.*)</p>\n\z`
const innerCleanupExpand = "$1"
func renderShortcode(sc shortcode, p *Page, t tpl.Template) string {
func renderShortcode(sc shortcode, parent *ShortcodeWithPage, p *Page, t tpl.Template) string {
tmpl := getShortcodeTemplate(sc.name, t)
if tmpl == nil {
@ -197,7 +198,7 @@ func renderShortcode(sc shortcode, p *Page, t tpl.Template) string {
return ""
}
data := &ShortcodeWithPage{Params: sc.params, Page: p}
data := &ShortcodeWithPage{Params: sc.params, Page: p, Parent: parent}
if sc.params != nil {
data.IsNamedParams = reflect.TypeOf(sc.params).Kind() == reflect.Map
}
@ -209,7 +210,7 @@ func renderShortcode(sc shortcode, p *Page, t tpl.Template) string {
case string:
inner += innerData.(string)
case shortcode:
inner += renderShortcode(innerData.(shortcode), p, t)
inner += renderShortcode(innerData.(shortcode), data, p, t)
default:
jww.ERROR.Printf("Illegal state on shortcode rendering of '%s' in page %s. Illegal type in inner data: %s ",
sc.name, p.BaseFileName(), reflect.TypeOf(innerData))
@ -271,7 +272,7 @@ func extractAndRenderShortcodes(stringToParse string, p *Page, t tpl.Template) (
// need to have something to replace with
renderedShortcodes[key] = ""
} else {
renderedShortcodes[key] = renderShortcode(sc, p, t)
renderedShortcodes[key] = renderShortcode(sc, nil, p, t)
}
}

11
hugolib/shortcode_test.go
View file

@ -232,6 +232,17 @@ func TestNestedComplexSC(t *testing.T) {
"-row-1-s-col-2-<strong>s</strong>-aside-3-<strong>s</strong>-asideStop-4-s-colStop-5-s-rowStop-6-s", tem)
}
func TestParentShortcode(t *testing.T) {
tem := tpl.New()
tem.AddInternalShortcode("r1.html", `1: {{ .Get "pr1" }} {{ .Inner }}`)
tem.AddInternalShortcode("r2.html", `2: {{ .Parent.Get "pr1" }}{{ .Get "pr2" }} {{ .Inner }}`)
tem.AddInternalShortcode("r3.html", `3: {{ .Parent.Parent.Get "pr1" }}{{ .Parent.Get "pr2" }}{{ .Get "pr3" }} {{ .Inner }}`)
CheckShortCodeMatch(t, `{{< r1 pr1="p1" >}}1: {{< r2 pr2="p2" >}}2: {{< r3 pr3="p3" >}}{{< /r3 >}}{{< /r2 >}}{{< /r1 >}}`,
"1: p1 1: 2: p1p2 2: 3: p1p2p3 ", tem)
}
func TestFigureImgWidth(t *testing.T) {
tem := tpl.New()
CheckShortCodeMatch(t, `{{% figure src="/found/here" class="bananas orange" alt="apple" width="100px" %}}`, "\n<figure class=\"bananas orange\">\n \n <img src=\"/found/here\" alt=\"apple\" width=\"100px\" />\n \n \n</figure>\n", tem)