[Glitch] Move "compose" on mobile to floating action button

Port e72db6d9dd to glitch-soc

app/javascript/flavours/glitch/features/ui/components/columns_area.js

@@ -6,6 +6,7 @@ import ImmutablePureComponent from 'react-immutable-pure-component';
 
 import ReactSwipeableViews from 'react-swipeable-views';
 import { links, getIndex, getLink } from './tabs_bar';
+import { Link } from 'react-router-dom';
 
 import BundleContainer from '../containers/bundle_container';
 import ColumnLoading from './column_loading';
@@ -153,11 +154,19 @@ export default class ColumnsArea extends ImmutablePureComponent {
     this.pendingIndex = null;
 
     if (singleColumn) {
-      return columnIndex !== -1 ? (
-        <ReactSwipeableViews index={columnIndex} onChangeIndex={this.handleSwipe} onTransitionEnd={this.handleAnimationEnd} animateTransitions={shouldAnimate} springConfig={{ duration: '400ms', delay: '0s', easeFunction: 'ease' }} style={{ height: '100%' }}>
+      const floatingActionButton = this.context.router.history.location.pathname === '/statuses/new' ? null : <Link key='floating-action-button' to='/statuses/new' className='floating-action-button'><i className='fa fa-pencil' /></Link>;
+
+      return columnIndex !== -1 ? [
+        <ReactSwipeableViews key='content' index={columnIndex} onChangeIndex={this.handleSwipe} onTransitionEnd={this.handleAnimationEnd} animateTransitions={shouldAnimate} springConfig={{ duration: '400ms', delay: '0s', easeFunction: 'ease' }} style={{ height: '100%' }}>
           {links.map(this.renderView)}
-        </ReactSwipeableViews>
-      ) : <div className='columns-area'>{children}</div>;
+        </ReactSwipeableViews>,
+
+        floatingActionButton,
+      ] : [
+        <div className='columns-area'>{children}</div>,
+
+        floatingActionButton,
+      ];
     }
 
     return (