mirror of
https://github.com/gohugoio/hugo.git
synced 2024-11-14 20:37:55 -05:00
124 lines
3.3 KiB
Go
124 lines
3.3 KiB
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 page
|
|
|
|
import (
|
|
"html/template"
|
|
|
|
"github.com/gohugoio/hugo/lazy"
|
|
)
|
|
|
|
// OutputFormatContentProvider represents the method set that is "outputFormat aware" and that we
|
|
// provide lazy initialization for in case they get invoked outside of their normal rendering context, e.g. via .Translations.
|
|
// Note that this set is currently not complete, but should cover the most common use cases.
|
|
// For the others, the implementation will be from the page.NoopPage.
|
|
type OutputFormatContentProvider interface {
|
|
ContentProvider
|
|
TableOfContentsProvider
|
|
PageRenderProvider
|
|
}
|
|
|
|
// LazyContentProvider initializes itself when read. Each method of the
|
|
// ContentProvider interface initializes a content provider and shares it
|
|
// with other methods.
|
|
//
|
|
// Used in cases where we cannot guarantee whether the content provider
|
|
// will be needed. Must create via NewLazyContentProvider.
|
|
type LazyContentProvider struct {
|
|
init *lazy.Init
|
|
cp OutputFormatContentProvider
|
|
}
|
|
|
|
// NewLazyContentProvider returns a LazyContentProvider initialized with
|
|
// function f. The resulting LazyContentProvider calls f in order to
|
|
// retrieve a ContentProvider
|
|
func NewLazyContentProvider(f func() (OutputFormatContentProvider, error)) *LazyContentProvider {
|
|
lcp := LazyContentProvider{
|
|
init: lazy.New(),
|
|
cp: NopPage,
|
|
}
|
|
lcp.init.Add(func() (interface{}, error) {
|
|
cp, err := f()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
lcp.cp = cp
|
|
return nil, nil
|
|
})
|
|
return &lcp
|
|
}
|
|
|
|
func (lcp *LazyContentProvider) Reset() {
|
|
lcp.init.Reset()
|
|
}
|
|
|
|
func (lcp *LazyContentProvider) Content() (interface{}, error) {
|
|
lcp.init.Do()
|
|
return lcp.cp.Content()
|
|
}
|
|
|
|
func (lcp *LazyContentProvider) Plain() string {
|
|
lcp.init.Do()
|
|
return lcp.cp.Plain()
|
|
}
|
|
|
|
func (lcp *LazyContentProvider) PlainWords() []string {
|
|
lcp.init.Do()
|
|
return lcp.cp.PlainWords()
|
|
}
|
|
|
|
func (lcp *LazyContentProvider) Summary() template.HTML {
|
|
lcp.init.Do()
|
|
return lcp.cp.Summary()
|
|
}
|
|
|
|
func (lcp *LazyContentProvider) Truncated() bool {
|
|
lcp.init.Do()
|
|
return lcp.cp.Truncated()
|
|
}
|
|
|
|
func (lcp *LazyContentProvider) FuzzyWordCount() int {
|
|
lcp.init.Do()
|
|
return lcp.cp.FuzzyWordCount()
|
|
}
|
|
|
|
func (lcp *LazyContentProvider) WordCount() int {
|
|
lcp.init.Do()
|
|
return lcp.cp.WordCount()
|
|
}
|
|
|
|
func (lcp *LazyContentProvider) ReadingTime() int {
|
|
lcp.init.Do()
|
|
return lcp.cp.ReadingTime()
|
|
}
|
|
|
|
func (lcp *LazyContentProvider) Len() int {
|
|
lcp.init.Do()
|
|
return lcp.cp.Len()
|
|
}
|
|
|
|
func (lcp *LazyContentProvider) Render(layout ...string) (template.HTML, error) {
|
|
lcp.init.Do()
|
|
return lcp.cp.Render(layout...)
|
|
}
|
|
|
|
func (lcp *LazyContentProvider) RenderString(args ...interface{}) (template.HTML, error) {
|
|
lcp.init.Do()
|
|
return lcp.cp.RenderString(args...)
|
|
}
|
|
|
|
func (lcp *LazyContentProvider) TableOfContents() template.HTML {
|
|
lcp.init.Do()
|
|
return lcp.cp.TableOfContents()
|
|
}
|