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// Copyright 2017 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"
"sync"
"github.com/spf13/hugo/output"
)
// PageOutput represents one of potentially many output formats of a given
// Page.
type PageOutput struct {
*Page
// Pagination
paginator *Pager
paginatorInit sync.Once
// Keep this to create URL/path variations, i.e. paginators.
targetPathDescriptor targetPathDescriptor
outputFormat output.Format
}
func (p *PageOutput) targetPath(addends ...string) (string, error) {
tp, err := p.createTargetPath(p.outputFormat, addends...)
if err != nil {
return "", err
}
return tp, nil
}
func newPageOutput(p *Page, createCopy bool, f output.Format) (*PageOutput, error) {
// For tests
// TODO(bep) output get rid of this
if p.targetPathDescriptorPrototype == nil {
if err := p.initTargetPathDescriptor(); err != nil {
return nil, err
}
if err := p.initURLs(); err != nil {
return nil, err
}
}
if createCopy {
p = p.copy()
}
td, err := p.createTargetPathDescriptor(f)
if err != nil {
return nil, err
}
return &PageOutput{
Page: p,
outputFormat: f,
targetPathDescriptor: td,
}, nil
}
// copy creates a copy of this PageOutput with the lazy sync.Once vars reset
// so they will be evaluated again, for word count calculations etc.
func (p *PageOutput) copy() *PageOutput {
c, err := newPageOutput(p.Page, true, p.outputFormat)
if err != nil {
panic(err)
}
return c
}
func (p *PageOutput) layouts(layouts ...string) []string {
// TODO(bep) output the logic here needs to be redone.
if len(layouts) == 0 && len(p.layoutsCalculated) > 0 {
return p.layoutsCalculated
}
layoutOverride := ""
if len(layouts) > 0 {
layoutOverride = layouts[0]
}
return p.s.layoutHandler.For(
p.layoutDescriptor,
layoutOverride,
p.outputFormat)
}
func (p *PageOutput) Render(layout ...string) template.HTML {
l := p.layouts(layout...)
return p.s.Tmpl.ExecuteTemplateToHTML(p, l...)
}
// TODO(bep) output
func (p *Page) Render(layout ...string) template.HTML {
return p.mainPageOutput.Render(layout...)
}
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