[WIP] Initial status work

app/javascript/glitch/components/status/header/index.js

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+//  <StatusHeader>
+//  ==============
+
+//  For code documentation, please see:
+//  https://glitch-soc.github.io/docs/javascript/glitch/status/header
+
+//  For more information, please contact:
+//  @kibi@glitch.social
+
+//  * * * * * * *  //
+
+//  Imports:
+//  --------
+
+//  Package imports.
+import React from 'react';
+import PropTypes from 'prop-types';
+import ImmutablePropTypes from 'react-immutable-proptypes';
+import ImmutablePureComponent from 'react-immutable-pure-component';
+
+//  Our imports.
+import CommonAvatar from 'glitch/components/common/avatar';
+import CommonLink from 'glitch/components/common/link';
+
+//  Stylesheet imports.
+import './style';
+
+//  * * * * * * *  //
+
+//  The component:
+//  --------------
+
+export default class StatusHeader extends ImmutablePureComponent {
+
+  //  Props.
+  static propTypes = {
+    account: ImmutablePropTypes.map.isRequired,
+    comrade: ImmutablePropTypes.map,
+    history: PropTypes.object,
+  };
+
+  //  Renders our component.
+  render () {
+    const {
+      account,
+      comrade,
+      history,
+    } = this.props;
+
+    //  This displays our header.
+    return (
+      <header className='glitch glitch__status__header'>
+        <CommonLink
+          className='header\link'
+          destination={`/accounts/${account.get('id')}`}
+          history={history}
+          href={account.get('url')}
+        >
+          <CommonAvatar
+            account={account}
+            className='header\avatar'
+            comrade={comrade}
+          />
+        </CommonLink>
+        <b
+          className='header\display-name'
+          dangerouslySetInnerHTML={{
+            __html: account.get('display_name_html'),
+          }}
+        />
+        <code className='header\account'>@{account.get('acct')}</code>
+      </header>
+    );
+  }
+
+}

app/javascript/glitch/components/status/header/style.scss

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+@import 'variables';
+
+.glitch.glitch__status__header {
+  display: block;
+  height: 3.35em;
+
+  /*
+  Note that the computed value of `em` changes for `.account`, since it
+  has a different font-size.
+  */
+  .header\\account,
+  .header\\display-name {
+    display: block;
+    border: none;  //  masto compat.
+    padding: 0;  //  masto compat.
+    max-width: none;  //  masto compat.
+    height: 1.35em;
+    overflow: hidden;
+    font-size: inherit;
+    font-family: inherit;
+    font-weight: inherit;
+    line-height: inherit;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+  }
+
+  /*
+  This means that the heights of the account and display name together
+  are 2.6em.
+  */
+  .header\\account {
+    font-size: (1.25em / 1.35);  //  approx. .925em
+  }
+
+  .header\\avatar {
+    float: left;
+    margin-right: .75em;
+    width: 3.35em;
+    height: 3.35em;
+  }
+
+  .header\\display-name {
+    padding-top: .75em;
+  }
+}