From 288ac0cfef445a91ea99bb61f822fa141bd5b2c9 Mon Sep 17 00:00:00 2001
From: Franck <abgrallkefran@gmail.com>
Date: Thu, 8 Aug 2019 21:11:23 +0200
Subject: [PATCH 1/5] core: add lodash deps

---
 packages/@vuepress/theme-default/package.json | 1 +
 yarn.lock                                     | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/packages/@vuepress/theme-default/package.json b/packages/@vuepress/theme-default/package.json
index 1cd4c534b7..80a4477fa5 100644
--- a/packages/@vuepress/theme-default/package.json
+++ b/packages/@vuepress/theme-default/package.json
@@ -34,6 +34,7 @@
     "@vuepress/plugin-nprogress": "^1.0.3",
     "@vuepress/plugin-search": "^1.0.3",
     "docsearch.js": "^2.5.2",
+    "lodash": "^4.17.15",
     "stylus": "^0.54.5",
     "stylus-loader": "^3.0.2",
     "vuepress-plugin-container": "^2.0.0"
diff --git a/yarn.lock b/yarn.lock
index 64427e911a..e9b7a9c7da 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7316,7 +7316,7 @@ lodash.uniq@^4.5.0:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
 
-lodash@^4.0.0, lodash@^4.11.2, lodash@^4.17.12:
+lodash@^4.0.0, lodash@^4.11.2, lodash@^4.17.12, lodash@^4.17.15:
   version "4.17.15"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
 

From f19dc20df7ea646ce921ef216bdd1ffee38f649f Mon Sep 17 00:00:00 2001
From: Franck <abgrallkefran@gmail.com>
Date: Thu, 8 Aug 2019 21:11:56 +0200
Subject: [PATCH 2/5] core: disable next and prev links from global config

---
 .../theme-default/components/Page.vue         | 49 +++++++++++++------
 1 file changed, 33 insertions(+), 16 deletions(-)

diff --git a/packages/@vuepress/theme-default/components/Page.vue b/packages/@vuepress/theme-default/components/Page.vue
index a89b3b6da7..4278cbd768 100644
--- a/packages/@vuepress/theme-default/components/Page.vue
+++ b/packages/@vuepress/theme-default/components/Page.vue
@@ -62,6 +62,9 @@
 </template>
 
 <script>
+import isString from 'lodash/isString'
+import isNil from 'lodash/isNil'
+
 import { resolvePage, outboundRE, endingSlashRE } from '../util'
 
 export default {
@@ -83,25 +86,11 @@ export default {
     },
 
     prev () {
-      const prev = this.$page.frontmatter.prev
-      if (prev === false) {
-        return
-      } else if (prev) {
-        return resolvePage(this.$site.pages, prev, this.$route.path)
-      } else {
-        return resolvePrev(this.$page, this.sidebarItems)
-      }
+      return resolvePageLink(LINK_TYPES.PREV, this)
     },
 
     next () {
-      const next = this.$page.frontmatter.next
-      if (next === false) {
-        return
-      } else if (next) {
-        return resolvePage(this.$site.pages, next, this.$route.path)
-      } else {
-        return resolveNext(this.$page, this.sidebarItems)
-      }
+      return resolvePageLink(LINK_TYPES.NEXT, this)
     },
 
     editLink () {
@@ -161,6 +150,11 @@ export default {
   }
 }
 
+const LINK_TYPES = {
+  NEXT: 'next',
+  PREV: 'prev'
+}
+
 function resolvePrev (page, items) {
   return find(page, items, -1)
 }
@@ -169,6 +163,29 @@ function resolveNext (page, items) {
   return find(page, items, 1)
 }
 
+function resolvePageLink (linkType, { $themeConfig, $page, $route, $site, sidebarItems }) {
+  const resolveLink = linkType === LINK_TYPES.NEXT ? resolveNext : resolvePrev
+
+  // Get link config from theme
+  const { nextLinks, prevLinks } = $themeConfig
+  const themeLinkConfig = linkType === LINK_TYPES.NEXT ? nextLinks : prevLinks
+
+  // Get link config from current page
+  const { next, prev } = $page.frontmatter
+  const pageLinkConfig = linkType === LINK_TYPES.NEXT ? next : prev
+
+  // Page link config will overwrite global theme link config if defined
+  const link = isNil(pageLinkConfig) ? themeLinkConfig : pageLinkConfig
+
+  if (link === false) {
+    return
+  } else if (isString(link)) {
+    return resolvePage($site.pages, link, $route.path)
+  } else {
+    return resolveLink($page, sidebarItems)
+  }
+}
+
 function find (page, items, offset) {
   const res = []
   flatten(items, res)

From 01f5b0c802f166645db8ac3ca7ccc22b71792698 Mon Sep 17 00:00:00 2001
From: Franck <abgrallkefran@gmail.com>
Date: Thu, 8 Aug 2019 21:12:11 +0200
Subject: [PATCH 3/5] doc: add documentation

---
 packages/docs/docs/theme/default-theme-config.md | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/packages/docs/docs/theme/default-theme-config.md b/packages/docs/docs/theme/default-theme-config.md
index 8e5830d363..615d2b3a01 100644
--- a/packages/docs/docs/theme/default-theme-config.md
+++ b/packages/docs/docs/theme/default-theme-config.md
@@ -409,17 +409,23 @@ module.exports = {
     docsBranch: 'master',
     // defaults to false, set to true to enable
     editLinks: true,
+    // default value is true. Allows to hide next page links on all pages
+    nextLinks: false,
+    // default value is true. Allows to hide prev page links on all pages
+    prevLinks: false,
     // custom text for edit link. Defaults to "Edit this page"
     editLinkText: 'Help us improve this page!'
   }
 }
 ```
 
-You can also hide the edit link on a specific page via `YAML front matter`:
+You can overwrite the following properties on specific pages via `YAML front matter`:
 
 ``` yaml
 ---
-editLink: false
+editLink: false # Will overwrite 'editLinks' from themeConfig
+prev: true # Will overwrite 'prevLinks' property from themeConfig
+next: ./my-next-page # Will overwrite 'nextLinks' property from themeConfig
 ---
 ```
 

From 3e70be895e0057178f19d4f706400d19aafdda74 Mon Sep 17 00:00:00 2001
From: Franck <abgrallkefran@gmail.com>
Date: Sun, 11 Aug 2019 19:23:56 +0200
Subject: [PATCH 4/5] resolvePageLink function refactoring

---
 .../theme-default/components/Page.vue         | 26 ++++++++++++-------
 1 file changed, 16 insertions(+), 10 deletions(-)

diff --git a/packages/@vuepress/theme-default/components/Page.vue b/packages/@vuepress/theme-default/components/Page.vue
index 4278cbd768..cc0efc72fa 100644
--- a/packages/@vuepress/theme-default/components/Page.vue
+++ b/packages/@vuepress/theme-default/components/Page.vue
@@ -150,11 +150,6 @@ export default {
   }
 }
 
-const LINK_TYPES = {
-  NEXT: 'next',
-  PREV: 'prev'
-}
-
 function resolvePrev (page, items) {
   return find(page, items, -1)
 }
@@ -163,16 +158,27 @@ function resolveNext (page, items) {
   return find(page, items, 1)
 }
 
+const LINK_TYPES = {
+  NEXT: {
+    resolveLink: resolveNext,
+    getThemeLinkConfig: ({ nextLinks }) => nextLinks,
+    getPageLinkConfig: ({ frontmatter }) => frontmatter.next
+  },
+  PREV: {
+    resolveLink: resolvePrev,
+    getThemeLinkConfig: ({ prevLinks }) => prevLinks,
+    getPageLinkConfig: ({ frontmatter }) => frontmatter.prev
+  }
+}
+
 function resolvePageLink (linkType, { $themeConfig, $page, $route, $site, sidebarItems }) {
-  const resolveLink = linkType === LINK_TYPES.NEXT ? resolveNext : resolvePrev
+  const { resolveLink, getThemeLinkConfig, getPageLinkConfig } = linkType
 
   // Get link config from theme
-  const { nextLinks, prevLinks } = $themeConfig
-  const themeLinkConfig = linkType === LINK_TYPES.NEXT ? nextLinks : prevLinks
+  const themeLinkConfig = getThemeLinkConfig($themeConfig)
 
   // Get link config from current page
-  const { next, prev } = $page.frontmatter
-  const pageLinkConfig = linkType === LINK_TYPES.NEXT ? next : prev
+  const pageLinkConfig = getPageLinkConfig($page)
 
   // Page link config will overwrite global theme link config if defined
   const link = isNil(pageLinkConfig) ? themeLinkConfig : pageLinkConfig

From d03a3fb6a24e61b922fe875d6af33caca5e8f021 Mon Sep 17 00:00:00 2001
From: Franck <abgrallkefran@gmail.com>
Date: Wed, 28 Aug 2019 16:53:30 +0200
Subject: [PATCH 5/5] docs: Improve Prev 'Next links' section description

---
 packages/docs/docs/theme/default-theme-config.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/docs/docs/theme/default-theme-config.md b/packages/docs/docs/theme/default-theme-config.md
index 615d2b3a01..7da053b361 100644
--- a/packages/docs/docs/theme/default-theme-config.md
+++ b/packages/docs/docs/theme/default-theme-config.md
@@ -376,7 +376,7 @@ Note that it’s `off` by default. If given a `string`, it will be displayed as
 
 ## Prev / Next Links
 
-Prev and next links are automatically inferred based on the sidebar order of the active page. You can also explicitly overwrite or disable them using `YAML front matter`:
+Prev and next links are automatically inferred based on the sidebar order of the active page. You can also explicitly overwrite or disable them globally with [theme config](/theme/default-theme-config.html#git-repository-and-edit-links) or on specific pages using `YAML front matter`:
 
 ``` yaml
 ---