From f095eb888f59c6a1210ba563acbe1fd6cb73be34 Mon Sep 17 00:00:00 2001
From: "qingwei.li" <cinwell.li@gmail.com>
Date: Mon, 29 May 2017 21:32:03 +0800
Subject: [PATCH] feat: support history mode

---
 src/core/render/compiler.js      |  8 ++--
 src/core/router/history/base.js  |  8 ++--
 src/core/router/history/html5.js | 75 ++++++++++++++++++++++++++++++++
 src/core/util/env.js             | 21 ++++-----
 4 files changed, 92 insertions(+), 20 deletions(-)

diff --git a/src/core/render/compiler.js b/src/core/render/compiler.js
index 914d4793e..b6000bef5 100644
--- a/src/core/render/compiler.js
+++ b/src/core/render/compiler.js
@@ -14,7 +14,7 @@ export class Compiler {
     this.cacheTree = {}
     this.toc = []
     this.linkTarget = config.externalLinkTarget || '_blank'
-    this.contentBase = getBasePath(config.base)
+    this.contentBase = getBasePath(config.basePath)
 
     const renderer = this._initRenderer()
     let compile
@@ -44,7 +44,7 @@ export class Compiler {
 
   _initRenderer () {
     const renderer = new marked.Renderer()
-    const { linkTarget, router, toc } = this
+    const { linkTarget, router, toc, contentBase } = this
     /**
      * render anchor tag
      * @link https://github.com/chjj/marked#overriding-renderer-methods
@@ -102,7 +102,7 @@ export class Compiler {
       const titleHTML = title ? ` title="${title}"` : ''
 
       if (!isAbsolutePath(href)) {
-        url = getPath(this.contentBase, href)
+        url = getPath(contentBase, href)
       }
 
       return `<img src="${url}" data-origin="${href}" alt="${text}"${titleHTML}>`
@@ -120,7 +120,7 @@ export class Compiler {
 
     if (text) {
       html = this.compile(text)
-      html = html.match(/<ul[^>]*>([\s\S]+)<\/ul>/g)[0]
+      html = html && html.match(/<ul[^>]*>([\s\S]+)<\/ul>/g)[0]
     } else {
       const tree = this.cacheTree[currentPath] || genTree(this.toc, level)
       html = treeTpl(tree, '<ul>')
diff --git a/src/core/router/history/base.js b/src/core/router/history/base.js
index 6f68c563f..ff798666b 100644
--- a/src/core/router/history/base.js
+++ b/src/core/router/history/base.js
@@ -18,10 +18,6 @@ export class History {
     this.config = config
   }
 
-  onchange (cb = noop) {
-    cb()
-  }
-
   getFile (path) {
     const { config } = this
     const base = getBasePath(config.basePath)
@@ -34,6 +30,10 @@ export class History {
     return path
   }
 
+  onchange (cb = noop) {
+    cb()
+  }
+
   getCurrentPath () {}
 
   normalize () {}
diff --git a/src/core/router/history/html5.js b/src/core/router/history/html5.js
index b1818a37b..9b7c1ab17 100644
--- a/src/core/router/history/html5.js
+++ b/src/core/router/history/html5.js
@@ -1,8 +1,83 @@
 import { History } from './base'
+import { merge, noop } from '../../util/core'
+import { on } from '../../util/dom'
+import { parseQuery, stringifyQuery, cleanPath } from '../util'
 
 export class HTML5History extends History {
   constructor (config) {
     super(config)
     this.mode = 'history'
   }
+
+  getCurrentPath () {
+    const base = this.config.base
+    let path = window.location.pathname
+
+    if (base && path.indexOf(base) === 0) {
+      path = path.slice(base.length)
+    }
+
+    return (path || '/') + window.location.search + window.location.hash
+  }
+
+  onchange (cb = noop) {
+    on('click', e => {
+      const el = e.target.tagName === 'A'
+        ? e.target
+        : e.target.parentNode
+
+      if (el.tagName === 'A' && !/_blank/.test(el.target)) {
+        e.preventDefault()
+        const url = el.href
+        window.history.pushState({ key: url }, '', url)
+        cb()
+      }
+    })
+
+    on('popstate', cb)
+  }
+
+  normalize () {
+    let path = this.getCurrentPath()
+
+    path = path.replace('#', '?id=')
+    window.history.pushState({ key: path }, '', path)
+
+    return path
+  }
+
+  /**
+   * Parse the url
+   * @param {string} [path=location.href]
+   * @return {object} { path, query }
+   */
+  parse (path = location.href) {
+    let query = ''
+
+    const queryIndex = path.indexOf('?')
+    if (queryIndex >= 0) {
+      query = path.slice(queryIndex + 1)
+      path = path.slice(0, queryIndex)
+    }
+
+    const baseIndex = path.indexOf(location.origin)
+    if (baseIndex > -1) {
+      path = path.slice(baseIndex + location.origin.length)
+    }
+
+    return { path, query: parseQuery(query) }
+  }
+
+  toURL (path, params, currentRoute) {
+    const local = currentRoute && path[0] === '#'
+    const route = this.parse(path)
+
+    route.query = merge({}, route.query, params)
+    path = route.path + stringifyQuery(route.query)
+    path = path.replace(/\.md(\?)|\.md$/, '$1')
+
+    if (local) path = currentRoute + path
+
+    return cleanPath('/' + path)
+  }
 }
diff --git a/src/core/util/env.js b/src/core/util/env.js
index 11dfbf305..5d143c95a 100644
--- a/src/core/util/env.js
+++ b/src/core/util/env.js
@@ -6,17 +6,14 @@ export const isMobile = document.body.clientWidth <= 600
 
 export const inBrowser = typeof window !== 'undefined'
 
+/**
+ * @see https://github.com/MoOx/pjax/blob/master/lib/is-supported.js
+ */
 export const supportsPushState = inBrowser && (function () {
-  const ua = window.navigator.userAgent
-
-  if (
-    (ua.indexOf('Android 2.') !== -1 || ua.indexOf('Android 4.0') !== -1) &&
-    ua.indexOf('Mobile Safari') !== -1 &&
-    ua.indexOf('Chrome') === -1 &&
-    ua.indexOf('Windows Phone') === -1
-  ) {
-    return false
-  }
-
-  return window.history && 'pushState' in window.history
+  // Borrowed wholesale from https://github.com/defunkt/jquery-pjax
+  return window.history &&
+    window.history.pushState &&
+    window.history.replaceState &&
+    // pushState isn’t reliable on iOS until 5.
+    !navigator.userAgent.match(/((iPod|iPhone|iPad).+\bOS\s+[1-4]\D|WebApps\/.+CFNetwork)/)
 })()