github.com/neohugo/neohugo@v0.123.8/hugolib/page__position.go (about) 1 // Copyright 2019 The Hugo Authors. All rights reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // http://www.apache.org/licenses/LICENSE-2.0 7 // 8 // Unless required by applicable law or agreed to in writing, software 9 // distributed under the License is distributed on an "AS IS" BASIS, 10 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 11 // See the License for the specific language governing permissions and 12 // limitations under the License. 13 14 package hugolib 15 16 import ( 17 "context" 18 19 "github.com/neohugo/neohugo/common/neohugo" 20 "github.com/neohugo/neohugo/lazy" 21 "github.com/neohugo/neohugo/resources/page" 22 ) 23 24 func newPagePosition(n *nextPrev) pagePosition { 25 return pagePosition{nextPrev: n} 26 } 27 28 func newPagePositionInSection(n *nextPrev) pagePositionInSection { 29 return pagePositionInSection{nextPrev: n} 30 } 31 32 type nextPrev struct { 33 init *lazy.Init 34 prevPage page.Page 35 nextPage page.Page 36 } 37 38 func (n *nextPrev) next() page.Page { 39 // TODO may check error 40 //nolint 41 n.init.Do(context.Background()) 42 return n.nextPage 43 } 44 45 func (n *nextPrev) prev() page.Page { 46 // TODO may check error 47 //nolint 48 n.init.Do(context.Background()) 49 return n.prevPage 50 } 51 52 type pagePosition struct { 53 *nextPrev 54 } 55 56 func (p pagePosition) Next() page.Page { 57 return p.next() 58 } 59 60 // Deprecated: Use Next instead. 61 func (p pagePosition) NextPage() page.Page { 62 neohugo.Deprecate(".Page.NextPage", "Use .Page.Next instead.", "v0.123.0") 63 return p.Next() 64 } 65 66 func (p pagePosition) Prev() page.Page { 67 return p.prev() 68 } 69 70 // Deprecated: Use Prev instead. 71 func (p pagePosition) PrevPage() page.Page { 72 neohugo.Deprecate(".Page.PrevPage", "Use .Page.Prev instead.", "v0.123.0") 73 return p.Prev() 74 } 75 76 type pagePositionInSection struct { 77 *nextPrev 78 } 79 80 func (p pagePositionInSection) NextInSection() page.Page { 81 return p.next() 82 } 83 84 func (p pagePositionInSection) PrevInSection() page.Page { 85 return p.prev() 86 }