Editor embeds (#680)

- [x] Make deleting an embed easier
- [x] Add document level ability to disable embeds
- [x] Add team level ability to disable embeds
- [x] GitHub
- [x] Numeracy
- [x] Mode Analytics
- [x] Figma
- [x] Airtable
- [x] Vimeo
- [x] RealtimeBoard
- [x] Loom
- [x] Lucidcharts
- [x] Framer
- [x] InVision
- [x] Typeform
- [x] Marvel
- [x] Spotify
- [x] Codepen
- [x] Trello

app/components/Editor/Editor.js

@@ -0,0 +1,90 @@
+// @flow
+import * as React from 'react';
+import RichMarkdownEditor from 'rich-markdown-editor';
+import { uploadFile } from 'utils/uploadFile';
+import isInternalUrl from 'utils/isInternalUrl';
+import Embed from './Embed';
+import embeds from '../../embeds';
+
+type Props = {
+  titlePlaceholder?: string,
+  bodyPlaceholder?: string,
+  defaultValue?: string,
+  readOnly?: boolean,
+  disableEmbeds?: boolean,
+  forwardedRef: *,
+  history: *,
+  ui: *,
+};
+
+class Editor extends React.Component<Props> {
+  onUploadImage = async (file: File) => {
+    const result = await uploadFile(file);
+    return result.url;
+  };
+
+  onClickLink = (href: string) => {
+    // on page hash
+    if (href[0] === '#') {
+      window.location.href = href;
+      return;
+    }
+
+    if (isInternalUrl(href)) {
+      // relative
+      let navigateTo = href;
+
+      // probably absolute
+      if (href[0] !== '/') {
+        try {
+          const url = new URL(href);
+          navigateTo = url.pathname + url.hash;
+        } catch (err) {
+          navigateTo = href;
+        }
+      }
+
+      this.props.history.push(navigateTo);
+    } else {
+      window.open(href, '_blank');
+    }
+  };
+
+  onShowToast = (message: string) => {
+    this.props.ui.showToast(message, 'success');
+  };
+
+  getLinkComponent = node => {
+    if (this.props.disableEmbeds) return;
+
+    const url = node.data.get('href');
+    const keys = Object.keys(embeds);
+
+    for (const key of keys) {
+      const component = embeds[key];
+
+      for (const host of component.ENABLED) {
+        const matches = url.match(host);
+        if (matches) return Embed;
+      }
+    }
+  };
+
+  render() {
+    return (
+      <RichMarkdownEditor
+        ref={this.props.forwardedRef}
+        uploadImage={this.onUploadImage}
+        onClickLink={this.onClickLink}
+        onShowToast={this.onShowToast}
+        getLinkComponent={this.getLinkComponent}
+        {...this.props}
+      />
+    );
+  }
+}
+
+// $FlowIssue - https://github.com/facebook/flow/issues/6103
+export default React.forwardRef((props, ref) => (
+  <Editor {...props} forwardedRef={ref} />
+));