chat: add expandable youtube embed messages

YouTube links now have a [embed] link that expands an inline embed of
the video. Embeds don't load until clicked, so don't fear the tracker.

pkg/interface/chat/src/css/custom.css

@@ -99,6 +99,21 @@ h2 {
   word-break: break-all;
 }
 
+/* embeds */
+.embed-container {
+  position: relative;
+  height: 0;
+  overflow: hidden;
+}
+
+.embed-container iframe, .embed-container object, .embed-container embed {
+  position: absolute;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+}
+
 /* responsive */
 
 @media all and (max-width: 34.375em) {
@@ -114,6 +129,9 @@ h2 {
   .h-100-minus-96-s {
     height: calc(100% - 96px);
   }
+  .embed-container {
+    padding-bottom: 56.25%;
+  }
 }
 
 @media all and (min-width: 34.375em) and (max-width: 46.875em) {
@@ -123,6 +141,9 @@ h2 {
   .h-100-minus-48-m {
     height: calc(100% - 48px);
   }
+  .embed-container {
+    padding-bottom: 56.25%;
+  }
 }
 
 @media all and (min-width: 46.875em) and (max-width: 60em) {
@@ -132,6 +153,9 @@ h2 {
   .h-100-minus-48-l {
     height: calc(100% - 48px);
   }
+  .embed-container {
+    padding-bottom: 37.5%;
+  }
 }
 
 @media all and (min-width: 60em) {
@@ -141,4 +165,7 @@ h2 {
   .h-100-minus-48-xl {
     height: calc(100% - 48px);
   }
+  .embed-container {
+    padding-bottom: 28.125%;
+  }
 }

pkg/interface/chat/src/js/components/lib/message.js

@@ -8,6 +8,21 @@ import _ from 'lodash';
 
 
 export class Message extends Component {
+  constructor() {
+    super();
+    this.state = {
+      unfold: false
+    };
+    this.unFoldEmbed = this.unFoldEmbed.bind(this);
+  }
+
+  unFoldEmbed(id) {
+    let unfoldState = this.state.unfold;
+    unfoldState = !unfoldState;
+    this.setState({unfold: unfoldState});
+    let iframe = this.refs.iframe;
+    iframe.setAttribute('src', iframe.getAttribute('data-src'));
+  }
 
   renderContent() {
     const { props } = this;
@@ -34,6 +49,15 @@ export class Message extends Component {
       let imgMatch =
         /(jpg|img|png|gif|tiff|jpeg|JPG|IMG|PNG|TIFF|GIF|webp|WEBP|webm|WEBM)$/
         .exec(letter.url);
+      // this is jank
+      // TODO do we know ID lenght?
+      let youTubeRegex = new RegExp(''
+      + /(?:https?:\/\/(?:[a-z]+.)?)/.source // protocol
+      + /(?:youtu\.?be(?:\.com)?\/)(?:embed\/)?/.source // short and long-links
+      + /(?:(?:(?:(?:watch\?)?(?:time_continue=(?:[0-9]+))?.+v=)?([a-zA-Z0-9_-]+))(?:\?t\=(?:[0-9a-zA-Z]+))?)/.source // id
+      )
+      let ytMatch =
+      youTubeRegex.exec(letter.url);
       let contents = letter.url;
       if (imgMatch) {
         contents = (
@@ -45,7 +69,46 @@ export class Message extends Component {
             }}
           ></img>
         );
-      }
+        return (
+          <a className="f7 lh-copy v-top bb word-break-all"
+            href={letter.url}
+            target="_blank"
+            rel="noopener noreferrer">
+            {contents}
+          </a>
+        );
+      } else if (ytMatch) {
+        contents = (
+          <div className={'embed-container mb2 w-100 w-75-l w-50-xl ' +
+          ((this.state.unfold === true)
+          ? "db"
+          : "dn")}>
+          <iframe
+            ref="iframe"
+            width="560"
+            height="315"
+            data-src={`https://www.youtube.com/embed/${ytMatch[1]}`}
+            frameBorder="0" allow="picture-in-picture, fullscreen">
+          </iframe>
+          </div>
+        )
+        return (
+          <div>
+          <a href={letter.url}
+          className="f7 lh-copy v-top bb word-break-all"
+          href={letter.url}
+          target="_blank"
+          rel="noopener noreferrer">
+            {letter.url}
+        </a>
+        <a className="f7 pointer pl2 lh-copy v-top word-break-all"
+        onClick={e => this.unFoldEmbed()}>
+          [embed]
+          </a>
+        {contents}
+        </div>
+        )
+      } else {
         return (
           <a className="f7 lh-copy v-top bb b--black word-break-all"
             href={letter.url}
@@ -54,6 +117,7 @@ export class Message extends Component {
             {contents}
           </a>
         );
+      }
     } else if ('me' in letter) {
       return (
         <p className='f7 lh-copy v-top'>
@@ -139,7 +203,7 @@ export class Message extends Component {
             minHeight: "min-content"
           }}>
           <p className="child pt2 pl2 pr1 mono f9 gray dib">{timestamp}</p>
-          <div className="fr f7 clamp-message" style={{ flexGrow: 1 }}>
+          <div className="fr f7 clamp-message pr3" style={{ flexGrow: 1 }}>
             {this.renderContent()}
           </div>
         </div>