fix: incorrect active link (#281)

* fix scroll issue in IE

* add meta tag for IE browser

* fix link render issue after page refreshing

* fix issue of incorrect active link

Should use both `path` and `id` to identify link, as `id` might not be unique under different paths

src/core/event/index.js

@@ -5,7 +5,7 @@ import { scrollIntoView } from './scroll'
 
 export function eventMixin (proto) {
   proto.$resetEvents = function () {
-    scrollIntoView(this.route.query.id)
+    scrollIntoView(this.route.path, this.route.query.id)
     sidebar.getAndActive(this.router, 'nav')
   }
 }

src/core/event/scroll.js

@@ -68,6 +68,10 @@ function highlight () {
   }
 }
 
+function getNavKey (path, id) {
+  return `${path}?id=${id}`
+}
+
 export function scrollActiveSidebar (router) {
   const cover = dom.find('.cover.show')
   coverHeight = cover ? cover.offsetHeight : 0
@@ -82,7 +86,8 @@ export function scrollActiveSidebar (router) {
     let href = a.getAttribute('href')
 
     if (href !== '/') {
-      href = router.parse(href).query.id
+      const { query: { id }, path } = router.parse(href)
+      if (id) href = getNavKey(path, id)
     }
 
     if (href) nav[decodeURIComponent(href)] = li
@@ -100,13 +105,13 @@ export function scrollActiveSidebar (router) {
   })
 }
 
-export function scrollIntoView (id) {
+export function scrollIntoView (path, id) {
   if (!id) return
 
   const section = dom.find('#' + id)
   section && scrollTo(section)
 
-  const li = nav[id]
+  const li = nav[getNavKey(path, id)]
   const sidebar = dom.getNode('.sidebar')
   const active = dom.find(sidebar, 'li.active')
   active && active.classList.remove('active')

src/core/router/history/hash.js

@@ -55,7 +55,7 @@ export class HashHistory extends History {
     let query = ''
 
     const hashIndex = path.indexOf('#')
-    if (hashIndex) {
+    if (hashIndex >= 0) {
       path = path.slice(hashIndex + 1)
     }