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// 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 (
"fmt"
"github.com/gohugoio/hugo/identity"
"github.com/gohugoio/hugo/output"
"github.com/gohugoio/hugo/resources/page"
"github.com/gohugoio/hugo/resources/resource"
)
func newPageOutput(
ps *pageState,
pp pagePaths,
f output.Format,
render bool,
) *pageOutput {
var targetPathsProvider targetPathsHolder
var linksProvider resource.ResourceLinksProvider
ft, found := pp.targetPaths[f.Name]
if !found {
// Link to the main output format
ft = pp.targetPaths[pp.firstOutputFormat.Format.Name]
}
targetPathsProvider = ft
linksProvider = ft
var paginatorProvider page.PaginatorProvider
var pag *pagePaginator
if render && ps.IsNode() {
pag = newPagePaginator(ps)
paginatorProvider = pag
} else {
paginatorProvider = page.PaginatorNotSupportedFunc(func() error {
return fmt.Errorf("pagination not supported for pages of kind %q", ps.Kind())
})
}
var dependencyManager identity.Manager = identity.NopManager
if ps.s.conf.Internal.Watch {
dependencyManager = identity.NewManager(ps.Path() + "/" + f.Name)
}
providers := struct {
page.PaginatorProvider
resource.ResourceLinksProvider
targetPather
}{
paginatorProvider,
linksProvider,
targetPathsProvider,
}
po := &pageOutput{
p: ps,
f: f,
pagePerOutputProviders: providers,
ContentProvider: page.NopPage,
PageRenderProvider: page.NopPage,
TableOfContentsProvider: page.NopPage,
render: render,
paginator: pag,
dependencyManagerOutput: dependencyManager,
}
return po
}
// We create a pageOutput for every output format combination, even if this
// particular page isn't configured to be rendered to that format.
type pageOutput struct {
p *pageState
// Set if this page isn't configured to be rendered to this format.
render bool
f output.Format
// Only set if render is set.
// Note that this will be lazily initialized, so only used if actually
// used in template(s).
paginator *pagePaginator
// These interface provides the functionality that is specific for this
// output format.
contentRenderer page.ContentRenderer
pagePerOutputProviders
page.ContentProvider
page.PageRenderProvider
page.TableOfContentsProvider
page.RenderShortcodesProvider
// May be nil.
pco *pageContentOutput
dependencyManagerOutput identity.Manager
renderState int // Reset when it needs to be rendered again.
renderOnce bool // To make sure we at least try to render it once.
}
func (po *pageOutput) incrRenderState() {
po.renderState++
po.renderOnce = true
}
// isRendered reports whether this output format or its content has been rendered.
func (po *pageOutput) isRendered() bool {
if po.renderState > 0 {
return true
}
if po.pco != nil && po.pco.contentRendered {
return true
}
return false
}
func (po *pageOutput) IdentifierBase() string {
return po.p.f.Name
}
func (po *pageOutput) GetDependencyManager() identity.Manager {
return po.dependencyManagerOutput
}
func (p *pageOutput) setContentProvider(cp *pageContentOutput) {
if cp == nil {
return
}
p.contentRenderer = cp
p.ContentProvider = cp
p.PageRenderProvider = cp
p.TableOfContentsProvider = cp
p.RenderShortcodesProvider = cp
p.pco = cp
}
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