[Glitch] Rename JSX files with proper .jsx extension

Port 44a7d87cb1 to glitch-soc

Signed-off-by: Claire <claire.github-309c@sitedethib.com>

app/javascript/flavours/glitch/features/compose/components/upload_progress.jsx

@@ -0,0 +1,52 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import Motion from '../../ui/util/optional_motion';
+import spring from 'react-motion/lib/spring';
+import Icon from 'flavours/glitch/components/icon';
+import { FormattedMessage } from 'react-intl';
+
+export default class UploadProgress extends React.PureComponent {
+
+  static propTypes = {
+    active: PropTypes.bool,
+    progress: PropTypes.number,
+    isProcessing: PropTypes.bool,
+  };
+
+  render () {
+    const { active, progress, isProcessing } = this.props;
+
+    if (!active) {
+      return null;
+    }
+
+    let message;
+
+    if (isProcessing) {
+      message = <FormattedMessage id='upload_progress.processing' defaultMessage='Processing…' />;
+    } else {
+      message = <FormattedMessage id='upload_progress.label' defaultMessage='Uploading…' />;
+    }
+
+    return (
+      <div className='upload-progress'>
+        <div className='upload-progress__icon'>
+          <Icon id='upload' />
+        </div>
+
+        <div className='upload-progress__message'>
+          {message}
+
+          <div className='upload-progress__backdrop'>
+            <Motion defaultStyle={{ width: 0 }} style={{ width: spring(progress) }}>
+              {({ width }) =>
+                <div className='upload-progress__tracker' style={{ width: `${width}%` }} />
+              }
+            </Motion>
+          </div>
+        </div>
+      </div>
+    );
+  }
+
+}