Refactored header autohiding and split overrides

material/assets/manifest.json

@@ -1,16 +1,18 @@
 {
-  "assets/javascripts/bundle.js": "assets/javascripts/bundle.7e5d1283.min.js",
-  "assets/javascripts/bundle.js.map": "assets/javascripts/bundle.7e5d1283.min.js.map",
-  "assets/javascripts/vendor.js": "assets/javascripts/vendor.9418a44e.min.js",
-  "assets/javascripts/vendor.js.map": "assets/javascripts/vendor.9418a44e.min.js.map",
+  "assets/javascripts/bundle.js": "assets/javascripts/bundle.2bc3a92a.min.js",
+  "assets/javascripts/bundle.js.map": "assets/javascripts/bundle.2bc3a92a.min.js.map",
+  "assets/javascripts/vendor.js": "assets/javascripts/vendor.6b8ac966.min.js",
+  "assets/javascripts/vendor.js.map": "assets/javascripts/vendor.6b8ac966.min.js.map",
   "assets/javascripts/worker/search.js": "assets/javascripts/worker/search.b9424174.min.js",
   "assets/javascripts/worker/search.js.map": "assets/javascripts/worker/search.b9424174.min.js.map",
-  "assets/stylesheets/main.css": "assets/stylesheets/main.c7b58751.min.css",
-  "assets/stylesheets/main.css.map": "assets/stylesheets/main.c7b58751.min.css.map",
-  "assets/stylesheets/palette.css": "assets/stylesheets/palette.d4a7bf42.min.css",
-  "assets/stylesheets/palette.css.map": "assets/stylesheets/palette.d4a7bf42.min.css.map",
-  "overrides/assets/javascripts/bundle.js": "overrides/assets/javascripts/bundle.75e3dcac.min.js",
-  "overrides/assets/javascripts/bundle.js.map": "overrides/assets/javascripts/bundle.75e3dcac.min.js.map",
-  "overrides/assets/stylesheets/main.css": "overrides/assets/stylesheets/main.dadc6109.min.css",
-  "overrides/assets/stylesheets/main.css.map": "overrides/assets/stylesheets/main.dadc6109.min.css.map"
+  "assets/stylesheets/main.css": "assets/stylesheets/main.6ced4fc6.min.css",
+  "assets/stylesheets/main.css.map": "assets/stylesheets/main.6ced4fc6.min.css.map",
+  "assets/stylesheets/palette.css": "assets/stylesheets/palette.e70b70b6.min.css",
+  "assets/stylesheets/palette.css.map": "assets/stylesheets/palette.e70b70b6.min.css.map",
+  "overrides/assets/javascripts/bundle.js": "overrides/assets/javascripts/bundle.b79ba6f2.min.js",
+  "overrides/assets/javascripts/bundle.js.map": "overrides/assets/javascripts/bundle.b79ba6f2.min.js.map",
+  "overrides/assets/javascripts/vendor.js": "overrides/assets/javascripts/vendor.1aa446d9.min.js",
+  "overrides/assets/javascripts/vendor.js.map": "overrides/assets/javascripts/vendor.1aa446d9.min.js.map",
+  "overrides/assets/stylesheets/main.css": "overrides/assets/stylesheets/main.8e98f424.min.css",
+  "overrides/assets/stylesheets/main.css.map": "overrides/assets/stylesheets/main.8e98f424.min.css.map"
 }

material/base.html

@@ -39,10 +39,10 @@
       {% endif %}
     {% endblock %}
     {% block styles %}
-      <link rel="stylesheet" href="{{ 'assets/stylesheets/main.c7b58751.min.css' | url }}">
+      <link rel="stylesheet" href="{{ 'assets/stylesheets/main.6ced4fc6.min.css' | url }}">
       {% if config.theme.palette %}
         {% set palette = config.theme.palette %}
-        <link rel="stylesheet" href="{{ 'assets/stylesheets/palette.d4a7bf42.min.css' | url }}">
+        <link rel="stylesheet" href="{{ 'assets/stylesheets/palette.e70b70b6.min.css' | url }}">
         {% if palette.primary %}
           {% import "partials/palette.html" as map %}
           {% set primary = map.primary(
@@ -191,7 +191,7 @@
         "base": base_url,
         "features": features,
         "translations": {},
-        "search": "assets/javascripts/worker/search.js" | url,
+        "search": "assets/javascripts/worker/search.b9424174.min.js" | url,
       } -%}
       {%- set translations = app.translations -%}
       {%- for key in [
@@ -216,8 +216,8 @@
       </script>
     {% endblock %}
     {% block scripts %}
-      <script src="{{ 'assets/javascripts/vendor.9418a44e.min.js' | url }}"></script>
-      <script src="{{ 'assets/javascripts/bundle.7e5d1283.min.js' | url }}"></script>
+      <script src="{{ 'assets/javascripts/vendor.6b8ac966.min.js' | url }}"></script>
+      <script src="{{ 'assets/javascripts/bundle.2bc3a92a.min.js' | url }}"></script>
       {% for path in config["extra_javascript"] %}
         <script src="{{ path | url }}"></script>
       {% endfor %}

material/overrides/assets/javascripts/bundle.b79ba6f2.min.js

@@ -0,0 +1,2 @@
+!function(e,t){for(var n in t)e[n]=t[n]}(window,function(e){function t(t){for(var r,i,a=t[0],s=t[1],u=t[2],f=0,p=[];f<a.length;f++)i=a[f],Object.prototype.hasOwnProperty.call(o,i)&&o[i]&&p.push(o[i][0]),o[i]=0;for(r in s)Object.prototype.hasOwnProperty.call(s,r)&&(e[r]=s[r]);for(l&&l(t);p.length;)p.shift()();return c.push.apply(c,u||[]),n()}function n(){for(var e,t=0;t<c.length;t++){for(var n=c[t],r=!0,a=1;a<n.length;a++){var s=n[a];0!==o[s]&&(r=!1)}r&&(c.splice(t--,1),e=i(i.s=n[0]))}return e}var r={},o={0:0},c=[];function i(t){if(r[t])return r[t].exports;var n=r[t]={i:t,l:!1,exports:{}};return e[t].call(n.exports,n,n.exports,i),n.l=!0,n.exports}i.m=e,i.c=r,i.d=function(e,t,n){i.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:n})},i.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},i.t=function(e,t){if(1&t&&(e=i(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var n=Object.create(null);if(i.r(n),Object.defineProperty(n,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var r in e)i.d(n,r,function(t){return e[t]}.bind(null,r));return n},i.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return i.d(t,"a",t),t},i.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},i.p="";var a=window.webpackJsonp=window.webpackJsonp||[],s=a.push.bind(a);a.push=t,a=a.slice();for(var u=0;u<a.length;u++)t(a[u]);var l=s;return c.push([37,1]),n()}({37:function(e,t,n){"use strict";n.r(t);var r=n(20),o=n(3),c=n(38),i=n(45),a=n(29),s=n(25);n(32),n(39);function u(e,t=document){return t.querySelector(e)||void 0}function l(e,t=document){const n=u(e,t);if(void 0===n)throw new ReferenceError(`Missing element: expected "${e}" to be present`);return n}n(50);var f=n(51);var p=n(17),d=n(40),b=n(41),g=n(42),h=n(43),v=n(44);n(46);const O=new p.a;Object(d.a)(()=>Object(b.a)(new ResizeObserver(e=>{for(const t of e)O.next(t)}))).pipe(Object(a.a)(e=>g.a.pipe(Object(f.a)(e)).pipe(Object(h.a)(()=>e.disconnect()))),Object(v.a)(1));n(31);n(47);l("[data-md-toggle=drawer]"),l("[data-md-toggle=search]");n(52),n(53);n(48),n(49);function j(e,t){if("string"==typeof t||"number"==typeof t)e.innerHTML+=t.toString();else if(t instanceof Node)e.appendChild(t);else if(Array.isArray(t))for(const n of t)j(e,n)}function m(e,t,...n){const r=document.createElement(e);if(t)for(const e of Object.keys(t))"boolean"!=typeof t[e]?r.setAttribute(e,t[e]):t[e]&&r.setAttribute(e,"");for(const e of n)j(r,e);return r}function y(e,t){return t.length?m("div",{class:""},m("span",null,function(e){if(e>999){return((e+1e-6)/1e3).toFixed(+((e-950)%1e3>99))+"k"}return e.toString()}(e.length)," results"),m("ul",{class:"tx-icon-search__list"},e.slice(0,10).map(e=>m("li",{class:"tx-icon-search__item"},m("span",{class:"twemoji"},m("img",{src:"https://raw.githubusercontent.com/squidfunk/mkdocs-material/master/material/.icons/"+e,style:"width: 18px; height: 18px"}))," – ",m("button",{class:"md-clipboard--inline","data-clipboard-text":":"+e.replace(/\.svg$/,"").replace(/\//g,"-")+":"},m("code",null,function(e,t){return`:${Object(r.wrap)(e.replace(/\.svg$/,"").replace(/\//g,"-"),t,{wrap:{tagOpen:"<b>",tagClose:"</b>"}})}:`}(e,t))))))):m("div",{class:""})}const w=l("#__config"),x=JSON.parse(w.textContent),_=Object(o.a)(fetch(x.base+"/overrides/assets/javascripts/icons.json").then(e=>e.json())),k=u("#icon-search");k&&_.pipe(Object(i.a)(console.log),Object(a.a)(e=>Object(c.a)(k,"keyup").pipe(Object(s.a)(()=>Object(r.filter)(e,k.value))))).subscribe(e=>{const t=l(".tx-icon-result");t.innerHTML="",t.appendChild(y(e,k.value))}),Object(c.a)(document.body,"click").subscribe(e=>{if(e.target instanceof HTMLElement){e.target.closest("a[href^=http]")instanceof HTMLLinkElement&&ga("send","event","outbound","click",w.href)}})}}));
+//# sourceMappingURL=bundle.b79ba6f2.min.js.map

material/overrides/main.html

@@ -22,7 +22,7 @@
   <meta name="twitter:title" content="{{ title }}">
   <meta name="twitter:description" content="{{ config.site_description }}">
   <meta name="twitter:image" content="{{ image }}">
-  <link rel="stylesheet" href="{{ 'overrides/assets/stylesheets/main.dadc6109.min.css' | url }}">
+  <link rel="stylesheet" href="{{ 'overrides/assets/stylesheets/main.8e98f424.min.css' | url }}">
 {% endblock %}
 {% block announce %}
   <a href="https://twitter.com/squidfunk">
@@ -53,14 +53,6 @@
 {% endblock %}
 {% block scripts %}
   {{ super() }}
-  {% block config %}
-    {%- set configuration = {
-      "base": base_url,
-      "features": features
-    } -%}
-    <script id="__config" type="application/json">
-      {{- configuration | tojson -}}
-    </script>
-  {% endblock %}
-  <script src="{{ 'overrides/assets/javascripts/bundle.75e3dcac.min.js' | url }}"></script>
+  <script src="{{ 'overrides/assets/javascripts/vendor.1aa446d9.min.js' | url }}"></script>
+  <script src="{{ 'overrides/assets/javascripts/bundle.b79ba6f2.min.js' | url }}"></script>
 {% endblock %}

src/assets/javascripts/components/header/_/index.ts

@@ -21,23 +21,34 @@
  */
 
 import {
+  NEVER,
   Observable,
   Subject,
   animationFrameScheduler,
+  combineLatest,
   defer,
   of
 } from "rxjs"
 import {
+  bufferCount,
   combineLatestWith,
   distinctUntilChanged,
   distinctUntilKeyChanged,
+  filter,
   map,
   observeOn,
-  shareReplay
+  shareReplay,
+  startWith,
+  switchMap
 } from "rxjs/operators"
 
+import { feature } from "~/_"
 import { resetHeaderState, setHeaderState } from "~/actions"
-import { Viewport, watchElementSize } from "~/browser"
+import {
+  Viewport,
+  watchElementSize,
+  watchToggle
+} from "~/browser"
 
 import { Component } from "../../_"
 import { Main } from "../../main"
@@ -50,14 +61,22 @@ import { Main } from "../../main"
  * Header
  */
 export interface Header {
-  sticky: boolean                      /* Header stickyness */
   height: number                       /* Header visible height */
+  sticky: boolean                      /* Header stickyness */
+  hidden: boolean                      /* User scrolled past threshold */
 }
 
 /* ----------------------------------------------------------------------------
  * Helper types
  * ------------------------------------------------------------------------- */
 
+/**
+ * Watch options
+ */
+interface WatchOptions {
+  viewport$: Observable<Viewport>      /* Viewport observable */
+}
+
 /**
  * Mount options
  */
@@ -67,6 +86,52 @@ interface MountOptions {
   main$: Observable<Main>              /* Main area observable */
 }
 
+/* ----------------------------------------------------------------------------
+ * Helper functions
+ * ------------------------------------------------------------------------- */
+
+/**
+ * Compute whether the header is hidden
+ *
+ * If the user scrolls past a certain threshold, the header can be hidden when
+ * scrolling down, and shown when scrolling up.
+ *
+ * @param options - Options
+ *
+ * @returns Toggle observable
+ */
+function isHidden({ viewport$ }: WatchOptions): Observable<boolean> {
+  if (!feature("header.autohide"))
+    return of(false)
+
+  /* Compute direction and turning point */
+  const direction$ = viewport$
+    .pipe(
+      map(({ offset: { y } }) => y),
+      bufferCount(2, 1),
+      map(([a, b]) => [a < b, b] as const),
+      distinctUntilKeyChanged(0)
+    )
+
+  /* Compute whether header should be hidden */
+  const hidden$ = combineLatest([viewport$, direction$])
+    .pipe(
+      filter(([{ offset }, [, y]]) => Math.abs(y - offset.y) > 100),
+      map(([, [direction]]) => direction),
+      distinctUntilChanged(),
+    )
+
+  /* Compute threshold for autohiding */
+  const search$ = watchToggle("search")
+  return combineLatest([viewport$, search$])
+    .pipe(
+      map(([{ offset }, search]) => offset.y > 400 && !search),
+      distinctUntilChanged(),
+      switchMap(active => active ? hidden$ : NEVER),
+      startWith(false)
+    )
+}
+
 /* ----------------------------------------------------------------------------
  * Functions
  * ------------------------------------------------------------------------- */
@@ -75,11 +140,12 @@ interface MountOptions {
  * Watch header
  *
  * @param el - Header element
+ * @param options - Options
  *
  * @returns Header observable
  */
 export function watchHeader(
-  el: HTMLElement
+  el: HTMLElement, options: WatchOptions
 ): Observable<Header> {
   return defer(() => {
     const styles = getComputedStyle(el)
@@ -89,14 +155,16 @@ export function watchHeader(
     )
   })
     .pipe(
-      combineLatestWith(watchElementSize(el)),
-      map(([sticky, { height }]) => ({
+      combineLatestWith(watchElementSize(el), isHidden(options)),
+      map(([sticky, { height }, hidden]) => ({
+        height: sticky ? height : 0,
         sticky,
-        height: sticky ? height : 0
+        hidden
       })),
       distinctUntilChanged((a, b) => (
         a.sticky === b.sticky &&
-        a.height === b.height
+        a.height === b.height &&
+        a.hidden === b.hidden
       )),
       shareReplay(1)
     )
@@ -122,11 +190,12 @@ export function mountHeader(
   internal$
     .pipe(
       distinctUntilKeyChanged("active"),
+      combineLatestWith(header$),
       observeOn(animationFrameScheduler)
     )
-      .subscribe(({ active }) => {
+      .subscribe(([{ active }, { hidden }]) => {
         if (active)
-          setHeaderState(el, "shadow")
+          setHeaderState(el, hidden ? "hidden" : "shadow")
         else
           resetHeaderState(el)
       })

src/assets/javascripts/index.ts

@@ -88,7 +88,8 @@ if (feature("navigation.instant"))
 
 /* Set up header observable */
 const header$ = watchHeader(
-  getElementOrThrow("[data-md-component=header]")
+  getElementOrThrow("[data-md-component=header]"),
+  { viewport$ }
 )
 
 /* Set up main area observable */
@@ -153,6 +154,8 @@ const component$ = document$
     mergeWith(control$)
   )
 
+component$.subscribe()
+
 /* Export to window */
 export {
   document$,

src/overrides/assets/javascripts/index.ts

@@ -21,7 +21,6 @@
  */
 
 /* eslint-disable */
-
 import { filter } from "fuzzaldrin-plus"
 import { from, fromEvent } from "rxjs"
 import { map, switchMap } from "rxjs/operators"

src/overrides/main.html

@@ -97,6 +97,7 @@
   {{ super() }}
 
   <!-- Extra JavaScript -->
+  <script src="{{ 'overrides/assets/javascripts/vendor.js' | url }}"></script>
   <script src="{{ 'overrides/assets/javascripts/bundle.js' | url }}"></script>
 {% endblock %}
 

webpack.config.ts

@@ -201,13 +201,9 @@ export default (_env: never, args: Configuration): Configuration[] => {
     {
       ...base,
       entry: {
-        "assets/javascripts/bundle":    "src/assets/javascripts",
-        "assets/stylesheets/main":      "src/assets/stylesheets/main.scss",
-        "assets/stylesheets/palette":   "src/assets/stylesheets/palette.scss",
-        "overrides/assets/javascripts/bundle":
-          "src/overrides/assets/javascripts",
-        "overrides/assets/stylesheets/main":
-          "src/overrides/assets/stylesheets/main.scss"
+        "assets/javascripts/bundle":  "src/assets/javascripts",
+        "assets/stylesheets/main":    "src/assets/stylesheets/main.scss",
+        "assets/stylesheets/palette": "src/assets/stylesheets/palette.scss"
       },
       output: {
         path: path.resolve(__dirname, "material"),
@@ -340,7 +336,10 @@ export default (_env: never, args: Configuration): Configuration[] => {
               ]) {
                 const template = toPairs<string>(manifest)
                   .reduce((content, [from, to]) => (
-                    content.replace(new RegExp(`'${from}'`, "g"), `'${to}'`)
+                    content.replace(new RegExp(
+                      `('|")${from}\\1`, "g"),
+                      `$1${to}$1`
+                    )
                   ), fs.readFileSync(file, "utf8"))
 
                 /* Save template with replaced assets */
@@ -395,6 +394,44 @@ export default (_env: never, args: Configuration): Configuration[] => {
         hashDigestLength: 8,
         libraryTarget: "var"
       }
+    },
+
+    /* Overrides */
+    {
+      ...base,
+      entry: {
+        "overrides/assets/javascripts/bundle": "src/overrides/assets/javascripts",
+        "overrides/assets/stylesheets/main":   "src/overrides/assets/stylesheets/main.scss"
+      },
+      output: {
+        path: path.resolve(__dirname, "material"),
+        filename: `[name]${hash}.js`,
+        hashDigestLength: 8,
+        libraryTarget: "window"
+      },
+
+      /* Plugins */
+      plugins: [
+        ...base.plugins || [],
+
+        /* Stylesheets */
+        new MiniCssExtractPlugin({
+          filename: `[name]${hash}.css`
+        }),
+      ],
+
+      /* Optimizations */
+      optimization: {
+        splitChunks: {
+          cacheGroups: {
+            vendor: {
+              test: /[\\/]node_modules[\\/]/,
+              name: "overrides/assets/javascripts/vendor",
+              chunks: "all"
+            }
+          }
+        }
+      }
     }
   ]
 }