2.2.0

2026-07-17 11:33:44 +08:00 · 2017-10-23 15:47:12 -07:00
22 changed files with 397 additions and 433 deletions
@@ -2,11 +2,11 @@ language: node_js
 node_js:
  - "node" # latest version
 cache:
  yarn: true
  directories:
    - node_modules
 script:
-  - npm run build
+  - yarn build
  - npm test
 deploy:
  provider: releases
  api_key: $GITHUB_OAUTH_TOKEN
@@ -2,12 +2,9 @@
 <head>
  <script src="../dist/template.v2.js"></script>
  <meta name="viewport" content="width=device-width, initial-scale=1" >
  <meta charset="utf8">
 </head>
 <body>
  <distill-header></distill-header>
 <d-front-matter>
  <script id='distill-front-matter' type="text/json">{
    "title": "Why Momentum Really Works",
@@ -61,7 +58,6 @@
  </d-math>
  <a class="marker" href="#section-1.1" id="section-1.1"><span>1.1</span></a>
  <h3>Citations</h3>
  <p><d-slider style="width: 200px;"></d-slider></p>
  <p>We can<d-cite key="mercier2011humans"></d-cite> also cite <d-cite key="gregor2015draw,mercier2011humans"></d-cite> external publications. <d-cite key="dong2014image,dumoulin2016guide,mordvintsev2015inceptionism"></d-cite>. We should also be testing footnotes<d-footnote>This will become a hoverable footnote. This will become a hoverable footnote. This will become a hoverable footnote. This will become a hoverable footnote. This will become a hoverable footnote. This will become a hoverable footnote. This will become a hoverable footnote. This will become a hoverable footnote.</d-footnote>. There are multiple footnotes, and they appear in the appendix<d-footnote>Given I have coded them right. Also, here's math in a footnote: <d-math>c = \sum_0^i{x}</d-math>. Also, a citation. Box-ception<d-cite key='gregor2015draw'></d-cite>!</d-footnote> as well.</p>
  <a class="marker" href="#section-2" id="section-2"><span>2</span></a>
  <h2>Displaying code snippets</h2>
@@ -1,6 +1,6 @@
 {
  "name": "distill-template",
-  "version": "2.2.4",
+  "version": "2.2.0",
  "lockfileVersion": 1,
  "requires": true,
  "dependencies": {
@@ -1,6 +1,6 @@
 {
  "name": "distill-template",
-  "version": "2.2.4",
+  "version": "2.2.0",
  "description": "Template for creating Distill articles.",
  "main": "dist/template.v2.js",
  "bin": {
@@ -16,7 +16,6 @@ import { Code }            from './components/d-code';
 import { Footnote }        from './components/d-footnote';
 import { FootnoteList }    from './components/d-footnote-list';
 import { FrontMatter }     from './components/d-front-matter';
 import { HoverBox }        from './components/d-hover-box';
 import { Title }           from './components/d-title';
 import { DMath }           from './components/d-math';
 import { References }      from './components/d-references';
@@ -54,7 +53,7 @@ const distillMain = function() {
  /* Article will register controller which takes control from there */
  const components = [
    Abstract, Appendix, Article, Bibliography, Byline, Cite, CitationList, Code,
-    Footnote, FootnoteList, FrontMatter, HoverBox, Title, DMath, References, TOC, Figure,
+    Footnote, FootnoteList, FrontMatter, Title, DMath, References, TOC, Figure,
    Slider, Interstitial
  ];
@@ -1,5 +1,6 @@
-// import { Template } from '../mixins/template';
+import { Template } from '../mixins/template';
 import { Controller } from '../controller';
 import style from '../styles/d-article.css';
 const isOnlyWhitespace = /^\s*$/;
@@ -31,7 +32,7 @@ export class Article extends HTMLElement {
  connectedCallback() {
    document.onreadystatechange = function () {
-      console.log('onreadystatechange:');
+      console.log("onreadystatechange:");
      console.log(document.readyState);
    };
    console.info('Article tag connected, we can now listen to controller events.');
@@ -35,12 +35,6 @@ export class Bibliography extends HTMLElement {
    observer.observe(this, options);
  }
  connectedCallback() {
    requestAnimationFrame(() => {
      this.parseIfPossible();
    });
  }
  parseIfPossible() {
    const scriptTag = this.querySelector('script');
    if (!scriptTag) return;
@@ -1,5 +1,6 @@
 import { Template } from '../mixins/template';
 import { hover_cite, bibliography_cite } from '../helpers/citation';
 import { HoverBox } from '../helpers/hover-box';
 const T = Template('d-cite', `
 <style>
@@ -34,13 +35,31 @@ figcaption .citation-number {
  line-height: 1em;
 }
-d-hover-box {
+.container {
-  margin-top: 1.9em;
+  position: fixed;
  width: 100%;
  left: 0;
  z-index: 10000;
  margin-top: 2em;
 }
 .dt-hover-box {
  margin: 0 auto;
  width: 400px;
  max-width: 700px;
  background-color: #FFF;
  opacity: 0.95;
  border: 1px solid rgba(0, 0, 0, 0.25);
  padding: 8px 16px;
  border-radius: 3px;
  box-shadow: 0px 2px 10px 2px rgba(0, 0, 0, 0.2);
 }
 </style>
-<d-hover-box id="hover-box"></d-hover-box>
+<div class="container">
  <div id="hover-box" class="dt-hover-box"></div>
 </div>
 <div id="citation-" class="citation"><slot></slot><span class="citation-number"></span></div>
 `);
@@ -49,23 +68,43 @@ export class Cite extends T(HTMLElement) {
  /* Lifecycle */
  // constructor() {
  //   super();
  //   // Cite.currentId += 1;
  //   // this.citeId = Cite.currentId;
  // }
  connectedCallback() {
    // this.notify();
    this.hoverDiv = this.root.querySelector('.dt-hover-box');
    this.outerSpan = this.root.querySelector('#citation-');
    this.innerSpan = this.root.querySelector('.citation-number');
-    this.hoverBox = this.root.querySelector('d-hover-box');
+    // this.outerSpan.id = `citation-${this.citeId}`;
-    window.customElements.whenDefined('d-hover-box').then(() => {
+    // this.hoverDiv.id = `dt-cite-hover-box-${this.citeId}`;
-      this.hoverBox.listen(this);
+    // console.log(this, this.hoverDiv, this.outerSpan, this.innerSpan);
-    });
+    this.hoverbox = new HoverBox(this.hoverDiv, this.outerSpan);
  }
-  //TODO This causes an infinite loop on firefox with polyfills.
+  disconnectedCallback() {
-  // This is only needed for interactive editing so no priority.
+    const options = { detail: [this, this.keys], bubbles: true };
-  // disconnectedCallback() {
+    const event = new CustomEvent('onCiteKeyRemoved', options);
-    // const options = { detail: [this, this.keys], bubbles: true };
+    document.dispatchEvent(event);
-    // const event = new CustomEvent('onCiteKeyRemoved', options);
+  }
-    // document.dispatchEvent(event);
+
  /* Observed Attributes */
  // renderCitationNumbers(citations) {
  //   const numbers = this._keys.map( (key) => {
  //     const index = citations.indexOf(key);
  //     return index == -1 ? '?' : index + 1 + '';
  //   });
  //   const text = "[" + numbers.join(", ") + "]";
  //   this.innerSpan.textContent = text;
  // }
  /* observe 'key' attribute */
  static get observedAttributes() {
@@ -99,15 +138,40 @@ export class Cite extends T(HTMLElement) {
      return index == -1 ? '?' : index + 1 + '';
    });
    const textContent = '[' + numberStrings.join(', ') + ']';
-    if (this.innerSpan) {
+    const innerSpan = this.root.querySelector('.citation-number');
-      this.innerSpan.textContent = textContent;
+    innerSpan.textContent = textContent;
    }
  }
  set entries(entries) {
-    if (this.hoverBox) {
+    const div = this.root.querySelector('#hover-box');
-      this.hoverBox.innerHTML = entries.map(hover_cite).join('<br><br>');
+    div.innerHTML = entries.map(hover_cite).join('<br><br>');
    }
  }
  // renderContent() {
  //   const bibliography = document.querySelector('d-bibliography');
  //   if (bibliography && bibliography.finishedLoading) {
  //     customElements.whenDefined('d-bibliography').then( () => {
  //       const keys = this.key.split(",");
  //
  //       // set up hidden hover box
  //       const div = this.root.querySelector('.dt-hover-box');
  //       div.innerHTML = keys.map( (key) => {
  //         return bibliography.getEntry(key);
  //       }).map(hover_cite).join('<br><br>');
  //       div.id ='dt-cite-hover-box-' + this.citeId;
  //
  //       // set up visible citation marker
  //       const outerSpan = this.root.querySelector('#citation-');
  //       outerSpan.id = `citation-${this.citeId}`;
  //       // outerSpan.setAttribute('data-hover', dataHoverString); // directly tell HoverBox instead?
  //       const innerSpan = this.root.querySelector('.citation-number');
  //       innerSpan.textContent = inline_cite_short(keys, bibliography);
  //
  //       HoverBox.get_box(div).bind(outerSpan);
  //     });
  //   } else {
  //     console.error(`You used a d-cite tag (${key}) without including a d-bibliography tag in your article. We can't lookup your citation this way.`)
  //   }
  // }
 }
@@ -1,4 +1,5 @@
 import { Template } from '../mixins/template.js';
 import { HoverBox } from '../helpers/hover-box';
 const T = Template('d-footnote', `
 <style>
@@ -8,6 +9,7 @@ d-math[block] {
 }
 :host {
  position: relative;
 }
 sup {
@@ -24,7 +26,7 @@ span {
 }
 .container {
-  position: absolute;
+  position: fixed;
  width: 100%;
  left: 0;
  z-index: 10000;
@@ -32,22 +34,23 @@ span {
 .dt-hover-box {
  margin: 0 auto;
-  width: 704px;
+  width: 400px;
-  max-width: 100vw;
+  max-width: 700px;
  background-color: #FFF;
  opacity: 0.95;
  border: 1px solid rgba(0, 0, 0, 0.25);
  padding: 8px 16px;
  border-radius: 3px;
  box-shadow: 0px 2px 10px 2px rgba(0, 0, 0, 0.2);
  box-sizing: border-box;
 }
 </style>
-<d-hover-box>
+<div class="container">
-  <slot id="slot"></slot>
+  <div id="hover-box" class="dt-hover-box">
-</d-hover-box>
+    <slot id="slot"></slot>
  </div>
 </div>
 <sup>
  <span id="fn-" data-hover-ref=""></span>
@@ -76,24 +79,23 @@ export class Footnote extends T(HTMLElement) {
    // const slot = this.shadowRoot.querySelector('#slot');
    // console.warn(slot.textContent);
    // slot.addEventListener('slotchange', this.notify);
-    this.hoverBox = this.root.querySelector('d-hover-box');
+
    window.customElements.whenDefined('d-hover-box').then(() => {
      this.hoverBox.listen(this);
    });
    // create numeric ID
    Footnote.currentFootnoteId += 1;
    const IdString = Footnote.currentFootnoteId.toString();
    this.root.host.id = 'd-footnote-' + IdString;
    // set up hidden hover box
-    const id = 'dt-fn-hover-box-' + IdString;
+    const div = this.root.querySelector('.dt-hover-box');
-    this.hoverBox.id = id
+    div.id = 'dt-fn-hover-box-' + IdString;
    // set up visible footnote marker
    const span = this.root.querySelector('#fn-');
    span.setAttribute('id', 'fn-' + IdString);
-    span.setAttribute('data-hover-ref', id);
+    span.setAttribute('data-hover-ref', div.id);
    span.textContent = IdString;
    this.hoverbox = new HoverBox(div, span);
  }
 }
@@ -1,132 +0,0 @@
 import { Template } from '../mixins/template.js';
 const T = Template('d-hover-box', `
 <style>
 :host {
  position: absolute;
  width: 100%;
  left: 0;
  z-index: 10000;
  display: none;
 }
 .container {
  position: relative;
  width: 704px;
  max-width: 100vw;
  margin: 0 auto;
 }
 .panel {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  border: 1px solid rgba(0, 0, 0, 0.1);
  background-color: rgb(250, 250, 250);
  box-shadow: 0 0 7px rgba(0, 0, 0, 0.1);
  border-radius: 4px;
  padding: 10px;
  box-sizing: border-box;
 }
 </style>
 <div class="container">
  <div class="panel">
    <slot></slot>
  </div>
 </div>
 `);
 export class HoverBox extends T(HTMLElement) {
  constructor() {
    super();
  }
  connectedCallback() {
  }
  listen(element) {
    console.log(element)
    this.bindDivEvents(this);
    this.bindTriggerEvents(element);
    // this.style.display = "block";
  }
  bindDivEvents(element) {
    // For mice, same behavior as hovering on links
    element.addEventListener('mouseover', () => {
      if (!this.visible) this.showAtNode(element);
      this.stopTimeout();
    });
    element.addEventListener('mouseout', () => {
      this.extendTimeout(500);
    });
    // Don't trigger body touchstart event when touching within box
    element.addEventListener('touchstart', (event) => {
      event.stopPropagation();
    }, {passive: true});
    // Close box when touching outside box
    document.body.addEventListener('touchstart', () => {
      this.hide();
    }, {passive: true});
  }
  bindTriggerEvents(node) {
    node.addEventListener('mouseover', () => {
      if (!this.visible) {
        this.showAtNode(node);
      }
      this.stopTimeout();
    });
    node.addEventListener('mouseout', () => {
      this.extendTimeout(300);
    });
    node.addEventListener('touchstart', (event) => {
      if (this.visible) {
        this.hide();
      } else {
        this.showAtNode(node);
      }
      // Don't trigger body touchstart event when touching link
      event.stopPropagation();
    }, {passive: true});
  }
  show(position) {
    this.visible = true;
    this.style.display = 'block';
  }
  showAtNode(node) {
    const bbox = node.getBoundingClientRect();
    this.show([bbox.right, bbox.bottom]);
  }
  hide() {
    this.visible = false;
    this.style.display = 'none';
    this.stopTimeout();
  }
  stopTimeout() {
    if (this.timeout) {
      clearTimeout(this.timeout);
    }
  }
  extendTimeout(time) {
    this.stopTimeout();
    this.timeout = setTimeout(() => {
      this.hide();
    }, time);
  }
 }
@@ -1,3 +1,50 @@
-export class Title extends HTMLElement {
+import { Template } from '../mixins/template';
-  static get is() { return 'd-title'; }
+
 const T = Template('d-title', `
 <style>
  :host {
    padding: 4rem 0 1.5rem;
    contain: content;
    display: block;
  }
  ::slotted(h1) {
    grid-column: text;
    font-size: 60px;
    font-weight: 600;
    line-height: 1.05em;
    margin: 0 0 1rem;
  }
  ::slotted(p) {
    font-weight: 300;
    font-size: 1.5rem;
    line-height: 1.2em;
    grid-column: text;
  }
  .status {
    margin-top: 0px;
    font-size: 12px;
    color: #009688;
    opacity: 0.8;
    grid-column: kicker;
  }
  .status span {
    line-height: 1;
    display: inline-block;
    padding: 6px 0;
    border-bottom: 1px solid #80cbc4;
    font-size: 11px;
    text-transform: uppercase;
  }
 </style>
 <!-- <div class="status"><span>✓ Peer Reviewed</span></div> -->
 <slot></slot>
 `);
 export class Title extends T(HTMLElement) {
 }
@@ -38,7 +38,7 @@ export const Controller = {
      citeTag.entries = entries;
    },
-    onCiteKeyChanged() {
+    onCiteKeyChanged(event) {
      // const [citeTag, keys] = event.detail;
      // update citations
@@ -71,6 +71,7 @@ export const Controller = {
    },
    onBibliographyChanged(event) {
      console.info('BibliographyChanged');
      const citationListTag = document.querySelector('d-citation-list');
      const bibliography = event.detail;
@@ -145,7 +146,7 @@ export const Controller = {
        return;
      } else {
        Controller.loaded = true;
-        console.log('Controller running DOMContentLoaded');
+        console.log('Controller running DOMContentLoaded')
      }
      const frontMatterTag = document.querySelector('d-front-matter');
@@ -7,7 +7,7 @@ const T = Template('distill-footer', `
 :host {
  color: rgba(255, 255, 255, 0.5);
  font-weight: 300;
-  padding: 2rem 0;
+  padding: 60px 0;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  background-color: hsl(180, 5%, 15%); /*hsl(200, 60%, 15%);*/
  text-align: left;
@@ -0,0 +1,109 @@
 function make_hover_css(target_node, pos) {
  const pretty = window.innerWidth > 600;
  const padding = pretty? 18 : 12;
  const outer_padding = pretty ? 18 : 0;
  // const bbox = document.querySelector('body').getBoundingClientRect();
  const bbox = target_node.offsetParent.getBoundingClientRect();
  let left = pos[0] - bbox.left, top = pos[1] - bbox.top;
  let width = Math.min(window.innerWidth-2*outer_padding, 648);
  left = Math.min(left, window.innerWidth-width-outer_padding);
  width = width - 2 * padding;
  return (`position: absolute;
     background-color: #FFF;
     opacity: 0.95;
     max-width: ${width}px;
     top: ${top}px;
     left: ${left}px;
     border: 1px solid rgba(0, 0, 0, 0.25);
     padding: ${padding}px;
     border-radius: ${pretty? 3 : 0}px;
     box-shadow: 0px 2px 10px 2px rgba(0, 0, 0, 0.2);
     z-index: ${1e6};`);
 }
 export class HoverBox {
  constructor(contentHTML, triggerElement) {
    this.visible = false;
    // div hold teh contents of the box that will become visible
    this.div = contentHTML;
    this.bindDivEvents(this.div);
    // triggerElement holds the element that needs to be hovered etc to show contents
    this.triggerElement = triggerElement;
    this.bindTriggerEvents(this.triggerElement);
    this.hide();
  }
  bindDivEvents(node) {
    // For mice, same behavior as hovering on links
    this.div.addEventListener('mouseover', () => {
      if (!this.visible) this.showAtNode(node);
      this.stopTimeout();
    });
    this.div.addEventListener('mouseout', () => {
      this.extendTimeout(500);
    });
    // Don't trigger body touchstart event when touching within box
    this.div.addEventListener('touchstart', (event) => {
      event.stopPropagation();
    }, {passive: true});
    // Close box when touching outside box
    document.body.addEventListener('touchstart', () => {
      this.hide();
    }, {passive: true});
  }
  bindTriggerEvents(node) {
    node.addEventListener('mouseover', () => {
      if (!this.visible) {
        this.showAtNode(node);
      }
      this.stopTimeout();
    });
    node.addEventListener('mouseout', () => {
      this.extendTimeout(500);
    });
    node.addEventListener('touchstart', (event) => {
      if (this.visible) {
        this.hide();
      } else {
        this.showAtNode(node);
      }
      // Don't trigger body touchstart event when touching link
      event.stopPropagation();
    }, {passive: true});
  }
  show(position) {
    this.visible = true;
    // const css = make_hover_css(this.triggerElement, position);
    this.div.setAttribute('style', 'display: block;' );
  }
  showAtNode(node) {
    const bbox = node.getBoundingClientRect();
    this.show([bbox.right, bbox.bottom]);
  }
  hide() {
    this.visible = false;
    this.div.setAttribute('style', 'display: none;');
    this.stopTimeout();
  }
  stopTimeout() {
    if (this.timeout) {
      clearTimeout(this.timeout);
    }
  }
  extendTimeout(time) {
    this.stopTimeout();
    this.timeout = setTimeout(() => {
      this.hide();
    }, time);
  }
 }
@@ -3,7 +3,6 @@ d-article {
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  padding-top: 2rem;
  color: rgba(0, 0, 0, 0.8);
  overflow: hidden;
 }
 d-article > * {
@@ -18,7 +17,7 @@ d-article > * {
@media(min-width: 1024px) {
  d-article {
-    font-size: 1.06rem;
+    font-size: 1rem;
    line-height: 1.7em;
  }
 }
@@ -103,6 +102,7 @@ d-article blockquote {
  margin-bottom: 1em;
  margin-left: 0;
  margin-right: 0;
  -webkit-font-smoothing: antialiased;
 }
 d-article blockquote {
@@ -132,15 +132,11 @@ d-article ol {
 }
 d-article li {
-  margin-bottom: 1em;
+  margin-bottom: 24px;
  margin-left: 0;
  padding-left: 0;
 }
 d-article li:last-child {
  margin-bottom: 0;
 }
 d-article pre {
  font-size: 14px;
  margin-bottom: 20px;
@@ -169,14 +165,11 @@ d-article span.equation-mimic {
 d-article > d-code,
 d-article section > d-code  {
  display: block;
  overflow-x: scroll;
 }
 d-article > d-math[block],
 d-article section > d-math[block]  {
  display: block;
  overflow-x: scroll;
 }
 d-article .citation {
@@ -7,28 +7,14 @@ d-byline {
  min-height: 1.8em;
 }
 d-byline .byline {
-  grid-template-columns: 1fr 1fr;
+  grid-template-columns: 2fr 1fr 1fr;
  grid-column: text;
 }
@media(min-width: 768px) {
  d-byline .byline {
    grid-template-columns: 1fr 1fr 1fr 1fr;
  }
 }
 d-byline .authors-affiliations {
  grid-column-end: span 2;
  grid-template-columns: 1fr 1fr;
  margin-bottom: 1em;
 }
@media(min-width: 768px) {
  d-byline .authors-affiliations {
    margin-bottom: 0;
  }
 }
 d-byline h3 {
@@ -1,55 +0,0 @@
 d-title {
  padding: 2rem 0 1.5rem;
  contain: content;
  overflow: hidden;
 }
@media(min-width: 768px) {
  d-title {
    padding: 4rem 0 1.5rem;
  }
 }
 d-title h1 {
  grid-column: text;
  font-size: 40px;
  font-weight: 700;
  line-height: 1.05em;
  margin: 0 0 1rem;
 }
@media(min-width: 768px) {
  d-title h1 {
    font-size: 60px;
  }
 }
 d-title p {
  font-weight: 300;
  font-size: 1.2rem;
  line-height: 1.7em;
  grid-column: text;
 }
@media(min-width: 768px) {
  d-title p {
    font-size: 1.5rem;
  }
 }
 d-title .status {
  margin-top: 0px;
  font-size: 12px;
  color: #009688;
  opacity: 0.8;
  grid-column: kicker;
 }
 d-title .status span {
  line-height: 1;
  display: inline-block;
  padding: 6px 0;
  border-bottom: 1px solid #80cbc4;
  font-size: 11px;
  text-transform: uppercase;
 }
@@ -1,5 +1,5 @@
 html {
-  font-size: 14px;
+  font-size: 16px;
 	line-height: 1.6em;
  /* font-family: "Libre Franklin", "Helvetica Neue", sans-serif; */
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Fira Sans", "Droid Sans", "Helvetica Neue", Arial, sans-serif;
@@ -9,12 +9,6 @@ html {
  -webkit-text-size-adjust: 100%;
 }
@media(min-width: 768px) {
  html {
    font-size: 16px;
  }
 }
 body {
  margin: 0;
 }
@@ -3,10 +3,9 @@ import layout from './styles-layout.css';
 import print from './styles-print.css';
 import byline from './d-byline.css';
 import article from './d-article.css';
 import title from './d-title.css';
 import math from './d-math.css';
-export const styles = base + layout + title + byline + article + math + print;
+export const styles = base + layout + byline + article + math + print;
 export function makeStyleTag(dom) {
@@ -37,11 +37,6 @@ export default function(dom, data) {
    <meta property="description"       itemprop="description"   content="${escape(data.description)}" />
    <meta property="article:published" itemprop="datePublished" content="${data.publishedISODateOnly}" />
    <meta property="article:created"   itemprop="dateCreated"   content="${data.publishedISODateOnly}" />
    `);
  }
  if (data.updatedDate) {
    appendHead(`
    <meta property="article:modified"  itemprop="dateModified"  content="${data.updatedDate.toISOString()}" />
    `);
  }
@@ -1,78 +1,47 @@
 const webcomponentPath = 'https://distill.pub/third-party/polyfills/webcomponents-lite.js';
 const intersectionObserverPath = 'https://distill.pub/third-party/polyfills/intersection-observer.js';
-// const template = `
+const template = `
-// if ('IntersectionObserver' in window &&
+if ('IntersectionObserver' in window &&
-//   'IntersectionObserverEntry' in window &&
+  'IntersectionObserverEntry' in window &&
-//   'intersectionRatio' in IntersectionObserverEntry.prototype) {
+  'intersectionRatio' in IntersectionObserverEntry.prototype) {
-//     // Platform supports IntersectionObserver natively! :-)
+    // Platform supports IntersectionObserver natively! :-)
-//     if (!('isIntersecting' in IntersectionObserverEntry.prototype)) {
+    if (!('isIntersecting' in IntersectionObserverEntry.prototype)) {
-//       Object.defineProperty(IntersectionObserverEntry.prototype,
+      Object.defineProperty(IntersectionObserverEntry.prototype,
-//         'isIntersecting', {
+        'isIntersecting', {
-//         get: function () {
+        get: function () {
-//           return this.intersectionRatio > 0;
+          return this.intersectionRatio > 0;
-//         }
+        }
-//       });
+      });
-//     }
+    }
-// } else {
+} else {
-//   // Platform does not support webcomponents--loading polyfills synchronously.
+  // Platform does not support webcomponents--loading polyfills synchronously.
-//   const scriptTag = document.createElement('script');
+  const scriptTag = document.createElement('script');
-//   scriptTag.src = '${intersectionObserverPath}';
+  scriptTag.src = '${intersectionObserverPath}';
-//   scriptTag.async = false;
+  scriptTag.async = false;
-//   document.currentScript.parentNode.insertBefore(scriptTag, document.currentScript.nextSibling);
+  document.currentScript.parentNode.insertBefore(scriptTag, document.currentScript.nextSibling);
-// }
+}
 //
 // if ('registerElement' in document &&
 //     'import' in document.createElement('link') &&
 //     'content' in document.createElement('template')) {
 //   // Platform supports webcomponents natively! :-)
 // } else {
 //   // Platform does not support webcomponents--loading polyfills synchronously.
 //   const scriptTag = document.createElement('script');
 //   scriptTag.src = '${webcomponentPath}';
 //   scriptTag.async = false;
 //   document.currentScript.parentNode.insertBefore(scriptTag, document.currentScript.nextSibling);
 // }
 //
 //
 // `;
-
+if ('registerElement' in document &&
-const addBackIn = `
+    'import' in document.createElement('link') &&
-window.addEventListener('WebComponentsReady', function() {
+    'content' in document.createElement('template')) {
-  console.warn('WebComponentsReady');
+  // Platform supports webcomponents natively! :-)
-  const loaderTag = document.createElement('script');
+} else {
-  loaderTag.src = 'http://localhost:8888/dist/template.v2.js';
+  // Platform does not support webcomponents--loading polyfills synchronously.
-  document.head.insertBefore(loaderTag, document.head.firstChild);
+  const scriptTag = document.createElement('script');
-});
+  scriptTag.src = '${webcomponentPath}';
  scriptTag.async = false;
  document.currentScript.parentNode.insertBefore(scriptTag, document.currentScript.nextSibling);
 }
 `;
 export default function render(dom) {
  // pull out template script tag
  const templateTag = dom.querySelector('script[src*="template.v2.js"]');
  if (templateTag) {
    templateTag.parentNode.removeChild(templateTag);
  } else {
    console.info('FYI: Did not find template tag when trying to remove it. You may not have added it. Be aware that our polyfills will add it.')
  }
  // add loader
  const loaderTag = dom.createElement('script');
  loaderTag.src = 'https://cdnjs.cloudflare.com/ajax/libs/webcomponentsjs/1.0.17/webcomponents-loader.js';
  dom.head.insertBefore(loaderTag, dom.head.firstChild);
  // add loader event listener to add tempalrte back in
  const addTag = dom.createElement('script');
  addTag.innerHTML = addBackIn;
  dom.head.insertBefore(addTag, dom.head.firstChild);
  // create polyfill script tag
-  // const polyfillScriptTag = dom.createElement('script');
+  const polyfillScriptTag = dom.createElement('script');
-  // polyfillScriptTag.innerHTML = template;
+  polyfillScriptTag.innerHTML = template;
-  // polyfillScriptTag.id = 'polyfills';
+  polyfillScriptTag.id = 'polyfills';
  // insert at appropriate position--before any other script tag
-  // const firstScriptTag = dom.head.querySelector('script');
+  const firstScriptTag = dom.head.querySelector('script');
-  // dom.head.insertBefore(polyfillScriptTag, firstScriptTag);
+  dom.head.insertBefore(polyfillScriptTag, firstScriptTag);
 }
@@ -2,7 +2,8 @@ import { Template } from '../mixins/template';
 import { scaleLinear } from 'd3-scale';
 import { range } from 'd3-array';
 import { drag } from 'd3-drag';
-import { select, event as currentEvent } from 'd3-selection';
+import { select } from 'd3-selection';
 import  {event as currentEvent } from 'd3-selection';
 const T = Template('d-slider', `
 <style>
@@ -90,14 +91,14 @@ const T = Template('d-slider', `
 </style>
-  <div class='background'>
+  <div class="background">
-    <div class='track'></div>
+    <div class="track"></div>
-    <div class='track-fill'></div>
+    <div class="track-fill"></div>
-    <div class='knob-container'>
+    <div class="knob-container">
-      <div class='knob-highlight'></div>
+      <div class="knob-highlight"></div>
-      <div class='knob'></div>
+      <div class="knob"></div>
    </div>
-    <div class='ticks'></div>
+    <div class="ticks"></div>
  </div>
 `);
@@ -121,18 +122,18 @@ export class Slider extends T(HTMLElement) {
  connectedCallback() {
    this.connected = true;
-    this.setAttribute('role', 'slider');
+    this.setAttribute("role", "slider");
    // Makes the element tab-able.
-    if (!this.hasAttribute('tabindex')) { this.setAttribute('tabindex', 0); }
+    if (!this.hasAttribute("tabindex")) { this.setAttribute("tabindex", 0); }
    // Keeps track of keyboard vs. mouse interactions for focus rings
    this.mouseEvent = false;
    // Handles to shadow DOM elements
-    this.knob = this.root.querySelector('.knob-container');
+    this.knob = this.root.querySelector(".knob-container");
-    this.background = this.root.querySelector('.background');
+    this.background = this.root.querySelector(".background");
-    this.trackFill = this.root.querySelector('.track-fill');
+    this.trackFill = this.root.querySelector(".track-fill");
-    this.track = this.root.querySelector('.track');
+    this.track = this.root.querySelector(".track");
    // Default values for attributes
    this.min = this.min ? this.min : 0;
@@ -147,109 +148,109 @@ export class Slider extends T(HTMLElement) {
    this.renderTicks();
    this.drag = drag()
-      .container(this.background)
+      .container(this.track)
-      .on('start', () => {
+      .on("start", () => {
        this.mouseEvent = true;
-        this.background.classList.add('mousedown');
+        this.background.classList.add("mousedown");
        this.changeValue = this.value;
        this.dragUpdate();
      })
-      .on('drag', () => {
+      .on("drag", () => {
        this.dragUpdate();
      })
-      .on('end', () => {
+      .on("end", () => {
        this.mouseEvent = false;
-        this.background.classList.remove('mousedown');
+        this.background.classList.remove("mousedown");
        this.dragUpdate();
        if (this.changeValue !== this.value) this.dispatchChange();
        this.changeValue = this.value;
      });
    this.drag(select(this.background));
-    this.addEventListener('focusin', () => {
+    this.addEventListener("focusin", (e) => {
      if(!this.mouseEvent) {
-        this.background.classList.add('focus');
+        this.background.classList.add("focus");
      }
    });
-    this.addEventListener('focusout', () => {
+    this.addEventListener("focusout", (e) => {
-      this.background.classList.remove('focus');
+      this.background.classList.remove("focus");
    });
-    this.addEventListener('keydown', this.onKeyDown);
+    this.addEventListener("keydown", this.onKeyDown);
  }
-  static get observedAttributes() {return ['min', 'max', 'value', 'step', 'ticks', 'origin', 'tickValues', 'tickLabels']; }
+  static get observedAttributes() {return ["min", "max", "value", "step", "ticks", "origin", "tickValues", "tickLabels"]; }
  attributeChangedCallback(attr, oldValue, newValue) {
-    if (attr == 'min') {
+    if (attr == "min") {
      this.min = +newValue;
-      this.setAttribute('aria-valuemin', this.min);
+      this.setAttribute("aria-valuemin", this.min);
    }
-    if (attr == 'max') {
+    if (attr == "max") {
      this.max = +newValue;
-      this.setAttribute('aria-valuemax', this.max);
+      this.setAttribute("aria-valuemax", this.max);
    }
-    if (attr == 'value') {
+    if (attr == "value") {
      this.update(+newValue);
    }
-    if (attr == 'origin') {
+    if (attr == "origin") {
      this.origin = +newValue;
      this.update(this.value);
    }
-    if (attr == 'step') {
+    if (attr == "step") {
      if (newValue > 0) {
        this.step = +newValue;
      }
    }
-    if (attr == 'ticks') {
+    if (attr == "ticks") {
-      this.ticks = (newValue === '' ? true : newValue);
+      this.ticks = (newValue === "" ? true : newValue);
    }
  }
-  onKeyDown(event) {
+  onKeyDown(e) {
    this.changeValue = this.value;
    let stopPropagation = false;
    switch (event.keyCode) {
-    case keyCodes.left:
+      case keyCodes.left:
-    case keyCodes.down:
+      case keyCodes.down:
-      this.update(this.value - this.step);
+        this.update(this.value - this.step)
-      stopPropagation = true;
+        stopPropagation = true;
-      break;
+        break;
-    case keyCodes.right:
+      case keyCodes.right:
-    case keyCodes.up:
+      case keyCodes.up:
-      this.update(this.value + this.step);
+        this.update(this.value + this.step)
-      stopPropagation = true;
+        stopPropagation = true;
-      break;
+        break;
-    case keyCodes.pageUp:
+      case keyCodes.pageUp:
-      this.update(this.value + this.step * 10);
+        this.update(this.value + this.step * 10)
-      stopPropagation = true;
+        stopPropagation = true;
-      break;
+        break;
-    case keyCodes.pageDown:
+      case keyCodes.pageDown:
-      this.update(this.value + this.step * 10);
+        this.update(this.value + this.step * 10)
-      stopPropagation = true;
+        stopPropagation = true;
-      break;
+        break;
-    case keyCodes.home:
+      case keyCodes.home:
-      this.update(this.min);
+        this.update(this.min);
-      stopPropagation = true;
+        stopPropagation = true;
-      break;
+        break;
-    case keyCodes.end:
+      case keyCodes.end:
-      this.update(this.max);
+        this.update(this.max);
-      stopPropagation = true;
+        stopPropagation = true;
-      break;
+        break;
-    default:
+      default:
-      break;
+        break;
    }
    if (stopPropagation) {
-      this.background.classList.add('focus');
+      this.background.classList.add("focus");
-      event.preventDefault();
+      e.preventDefault();
-      event.stopPropagation();
+      e.stopPropagation();
      if (this.changeValue !== this.value) this.dispatchChange();
    }
  }
  validateValueRange(min, max, value) {
-    return Math.max(Math.min(max, value), min);
+    return Math.max(Math.min(max, value), min)
  }
  quantizeValue(value, step) {
@@ -258,60 +259,61 @@ export class Slider extends T(HTMLElement) {
  dragUpdate() {
    const bbox = this.background.getBoundingClientRect();
-    const x = currentEvent.x;
+    const left = bbox.left;
    const x = event.x - left;
    const width = bbox.width;
    this.update(this.scale.invert(x / width));
  }
  update(value) {
    let v = value;
-    if (this.step !== 'any') {
+    if (this.step !== "any") {
      v = this.quantizeValue(value, this.step);
    }
    v = this.validateValueRange(this.min, this.max, v);
    if (this.connected) {
-      this.knob.style.left = this.scale(v) * 100 + '%';
+      this.knob.style.left = this.scale(v) * 100 + "%";
-      this.trackFill.style.width = this.scale(this.min + Math.abs(v - this.origin)) * 100 + '%';
+      this.trackFill.style.width = this.scale(this.min + Math.abs(v - this.origin)) * 100 + "%";
-      this.trackFill.style.left = this.scale(Math.min(v, this.origin)) * 100 + '%';
+      this.trackFill.style.left = this.scale(Math.min(v, this.origin)) * 100 + "%";
    }
    if (this.value !== v) {
      this.value = v;
-      this.setAttribute('aria-valuenow', this.value);
+      this.setAttribute("aria-valuenow", this.value);
      this.dispatchInput();
    }
  }
  // Dispatches only on a committed change (basically only on mouseup).
  dispatchChange() {
-    const e = new Event('change');
+    const e = new Event("change");
    this.dispatchEvent(e, {});
  }
  // Dispatches on each value change.
  dispatchInput() {
-    const e = new Event('input');
+    const e = new Event("input");
    this.dispatchEvent(e, {});
  }
  renderTicks() {
-    const ticksContainer = this.root.querySelector('.ticks');
+    const ticksContainer = this.root.querySelector(".ticks");
    if (this.ticks !== false) {
      let tickData = [];
      if (this.ticks > 0) {
        tickData = this.scale.ticks(this.ticks);
-      } else if (this.step === 'any') {
+      } else if (this.step === "any") {
        tickData = this.scale.ticks();
      } else {
        tickData = range(this.min, this.max + 1e-6, this.step);
      }
      tickData.forEach(d => {
-        const tick = document.createElement('div');
+        const tick = document.createElement("div");
-        tick.classList.add('tick');
+        tick.classList.add("tick");
-        tick.style.left = this.scale(d) * 100 + '%';
+        tick.style.left = this.scale(d) * 100 + "%";
-        ticksContainer.appendChild(tick);
+        ticksContainer.appendChild(tick)
      });
    } else {
-      ticksContainer.style.display = 'none';
+      ticksContainer.style.display = "none";
    }
  }
-}
+}