hugo shortcode_page 源码
hugo shortcode_page 代码
文件路径：/hugolib/shortcode_page.go
// Copyright 2019 The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package hugolib
import (
"html/template"
"github.com/gohugoio/hugo/resources/page"
)
var tocShortcodePlaceholder = createShortcodePlaceholder("TOC", 0)
// This is sent to the shortcodes. They cannot access the content
// they're a part of. It would cause an infinite regress.
//
// Go doesn't support virtual methods, so this careful dance is currently (I think)
// the best we can do.
type pageForShortcode struct {
page.PageWithoutContent
page.ContentProvider
// We need to replace it after we have rendered it, so provide a
// temporary placeholder.
toc template.HTML
p *pageState
}
func newPageForShortcode(p *pageState) page.Page {
return &pageForShortcode{
PageWithoutContent: p,
ContentProvider: page.NopPage,
toc: template.HTML(tocShortcodePlaceholder),
p: p,
}
}
func (p *pageForShortcode) page() page.Page {
return p.PageWithoutContent.(page.Page)
}
func (p *pageForShortcode) TableOfContents() template.HTML {
p.p.enablePlaceholders()
return p.toc
}
// This is what is sent into the content render hooks (link, image).
type pageForRenderHooks struct {
page.PageWithoutContent
page.TableOfContentsProvider
page.ContentProvider
}
func newPageForRenderHook(p *pageState) page.Page {
return &pageForRenderHooks{
PageWithoutContent: p,
ContentProvider: page.NopPage,
TableOfContentsProvider: page.NopPage,
}
}
func (p *pageForRenderHooks) page() page.Page {
return p.PageWithoutContent.(page.Page)
}
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