[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/ui/components/upload_area.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 { FormattedMessage } from 'react-intl';
+
+export default class UploadArea extends React.PureComponent {
+
+  static propTypes = {
+    active: PropTypes.bool,
+    onClose: PropTypes.func,
+  };
+
+  handleKeyUp = (e) => {
+    const keyCode = e.keyCode;
+    if (this.props.active) {
+      switch(keyCode) {
+      case 27:
+        e.preventDefault();
+        e.stopPropagation();
+        this.props.onClose();
+        break;
+      }
+    }
+  };
+
+  componentDidMount () {
+    window.addEventListener('keyup', this.handleKeyUp, false);
+  }
+
+  componentWillUnmount () {
+    window.removeEventListener('keyup', this.handleKeyUp);
+  }
+
+  render () {
+    const { active } = this.props;
+
+    return (
+      <Motion defaultStyle={{ backgroundOpacity: 0, backgroundScale: 0.95 }} style={{ backgroundOpacity: spring(active ? 1 : 0, { stiffness: 150, damping: 15 }), backgroundScale: spring(active ? 1 : 0.95, { stiffness: 200, damping: 3 }) }}>
+        {({ backgroundOpacity, backgroundScale }) =>
+          (<div className='upload-area' style={{ visibility: active ? 'visible' : 'hidden', opacity: backgroundOpacity }}>
+            <div className='upload-area__drop'>
+              <div className='upload-area__background' style={{ transform: `scale(${backgroundScale})` }} />
+              <div className='upload-area__content'><FormattedMessage id='upload_area.title' defaultMessage='Drag & drop to upload' /></div>
+            </div>
+          </div>)
+        }
+      </Motion>
+    );
+  }
+
+}