feat: custom sidebar, #4 (#5)

* feat: custom sidebar, #4

* fix dev html

* fix doc

* fix doc

docs/README.md

@@ -121,3 +121,26 @@ Root element.
 <script src="//unpkg.com/docsify" data-el="#app"></script>
 ```
 
+#### sidebar
+
+Custom sidebar. if it'set, the TOC will be disabeld. Bind global variables on the `data-sidebar`.
+
+![image](https://cloud.githubusercontent.com/assets/7565692/20647425/de5ab1c2-b4ce-11e6-863a-135868f2f9b4.png)
+
+```html
+<script>
+  window.sidebar = [
+    { slug: '/', title: 'Home' },
+    {
+      slug: '/pageA',
+      title: 'page A',
+      children: [
+        { slug: '/pageA/childrenB', title: 'children B' }
+      ]
+    },
+    { slug: '/PageC', title: 'Page C' }
+  ]
+</script>
+<script src="/lib/docsify.js" data-sidebar="sidebar"></script>
+```
+

docs/zh-cn.md

@@ -119,4 +119,26 @@ docsify serve docs
 <script src="//unpkg.com/docsify" data-el="#app"></script>
 ```
 
+#### sidebar
+
+设置后 TOC 功能将不可用，适合导航较多的文档，`data-sidebar` 传入全局变量名。
+
+![image](https://cloud.githubusercontent.com/assets/7565692/20647425/de5ab1c2-b4ce-11e6-863a-135868f2f9b4.png)
+
+```html
+<script>
+  window.sidebar = [
+    { slug: '/', title: 'Home' },
+    {
+      slug: '/pageA',
+      title: 'page A',
+      children: [
+        { slug: '/pageA/childrenB', title: 'children B' }
+      ]
+    },
+    { slug: '/PageC', title: 'Page C' }
+  ]
+</script>
+<script src="/lib/docsify.js" data-sidebar="sidebar"></script>
+```
 

src/bind-event.js

@@ -1,5 +1,5 @@
-function scrollActiveSidebar () {
-  if (/mobile/i.test(navigator.userAgent)) return
+function scrollActiveSidebar (isCustom) {
+  if (/mobile/i.test(navigator.userAgent) || isCustom) return
 
   const anchors = document.querySelectorAll('.anchor')
   const nav = {}
@@ -48,6 +48,6 @@ function scrollActiveSidebar () {
   scrollIntoView()
 }
 
-export default function () {
-  scrollActiveSidebar()
+export default function (isCustom) {
+  scrollActiveSidebar(isCustom)
 }

src/gen-toc.js

@@ -25,8 +25,8 @@ const tocToTree = function (toc, maxLevel) {
 const buildHeadlinesTree = function (tree, tpl = '') {
   if (!tree || !tree.length) return ''
 
-  tree.forEach((node) => {
-    tpl += `<li><a class="section-link" href="#${node.slug}">${node.title}</a></li>`
+  tree.forEach(node => {
+    tpl += `<li><a class="section-link" href="${node.slug}">${node.title}</a></li>`
     if (node.children) {
       tpl += `<li><ul class="children">${buildHeadlinesTree(node.children)}</li></ul>`
     }
@@ -35,7 +35,10 @@ const buildHeadlinesTree = function (tree, tpl = '') {
   return tpl
 }
 
-export default function (toc, maxLevel) {
-  var tree = tocToTree(toc, maxLevel)
+export default function (toc, opts) {
+  var tree = Array.isArray(opts.sidebar)
+    ? opts.sidebar
+    : tocToTree(toc, opts['max-level'])
+
   return buildHeadlinesTree(tree, '<ul>')
 }

src/index.js

@@ -5,7 +5,8 @@ import bindEvent from './bind-event'
 const DEFAULT_OPTS = {
   el: '#app',
   repo: '',
-  'max-level': 6
+  'max-level': 6,
+  sidebar: ''
 }
 
 const script = document.currentScript || [].slice.call(document.getElementsByTagName('script')).pop()
@@ -21,15 +22,17 @@ class Docsify {
     Docsify.installed = true
 
     this.opts = Object.assign({}, opts, DEFAULT_OPTS)
-
     this.replace = true
     this.dom = document.querySelector(this.opts.el)
     if (!this.dom) {
       this.dom = document.body
       this.replace = false
     }
+    if (this.opts.sidebar) this.opts.sidebar = window[this.opts.sidebar]
+
     this.loc = document.location.pathname
     if (/\/$/.test(this.loc)) this.loc += 'README'
+
     this.load()
 
     const nav = document.querySelector('nav')
@@ -43,7 +46,10 @@ class Docsify {
         this.render('not found')
       } else {
         this.render(res.target.response)
-        bindEvent()
+        bindEvent(!!this.opts.sidebar)
+        if (this.opts.sidebar) {
+          this.activeNav(document.querySelector('aside.sidebar'), true)
+        }
       }
     })
   }
@@ -52,12 +58,14 @@ class Docsify {
     this.dom[this.replace ? 'outerHTML' : 'innerHTML'] = render(content, this.opts)
   }
 
-  activeNav (elm) {
+  activeNav (elm, activeParentNode) {
     const host = document.location.origin + document.location.pathname
 
     ;[].slice.call(elm.querySelectorAll('a')).forEach(node => {
       if (node.href === host) {
-        node.setAttribute('class', 'active')
+        activeParentNode
+          ? node.parentNode.setAttribute('class', 'active')
+          : node.setAttribute('class', 'active')
       }
     })
   }

src/render.js

@@ -21,7 +21,7 @@ const renderer = new marked.Renderer()
 renderer.heading = function (text, level) {
   const slug = text.replace(/<(?:.|\n)*?>/gm, '').toLowerCase().replace(/[\s\n\t]+/g, '-')
 
-  toc.push({ level, slug, title: text })
+  toc.push({ level, slug: '#' + slug, title: text })
 
   return `<h${level} id="${slug}"><a href="#${slug}" class="anchor"></a>${text}</h${level}>`
 }
@@ -45,7 +45,7 @@ export default function (content, opts = {}) {
   const section = `<section class="content">
     <article class="markdown-section">${marked(content)}</article>
   </section>`
-  const sidebar = `<aside class="sidebar">${genToc(toc, opts['max-level'])}</aside>`
+  const sidebar = `<aside class="sidebar">${genToc(toc, opts)}</aside>`
 
   return `${corner}<main>${sidebar}${section}</main>`
 }