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-rw-r--r--app/javascript/mastodon/components/column.js15
-rw-r--r--app/javascript/mastodon/components/column_back_button.js15
-rw-r--r--app/javascript/mastodon/components/column_header.js12
-rw-r--r--app/javascript/mastodon/features/account_gallery/index.js5
-rw-r--r--app/javascript/mastodon/features/account_timeline/index.js2
-rw-r--r--app/javascript/mastodon/features/blocks/index.js2
-rw-r--r--app/javascript/mastodon/features/community_timeline/index.js2
-rw-r--r--app/javascript/mastodon/features/compose/components/text_icon_button.js15
-rw-r--r--app/javascript/mastodon/features/direct_timeline/index.js2
-rw-r--r--app/javascript/mastodon/features/domain_blocks/index.js2
-rw-r--r--app/javascript/mastodon/features/favourited_statuses/index.js2
-rw-r--r--app/javascript/mastodon/features/favourites/index.js2
-rw-r--r--app/javascript/mastodon/features/follow_requests/index.js2
-rw-r--r--app/javascript/mastodon/features/followers/index.js2
-rw-r--r--app/javascript/mastodon/features/following/index.js2
-rw-r--r--app/javascript/mastodon/features/getting_started/index.js2
-rw-r--r--app/javascript/mastodon/features/hashtag_timeline/index.js2
-rw-r--r--app/javascript/mastodon/features/home_timeline/index.js2
-rw-r--r--app/javascript/mastodon/features/keyboard_shortcuts/index.js4
-rw-r--r--app/javascript/mastodon/features/list_editor/components/edit_list_form.js2
-rw-r--r--app/javascript/mastodon/features/list_timeline/index.js4
-rw-r--r--app/javascript/mastodon/features/lists/components/new_list_form.js2
-rw-r--r--app/javascript/mastodon/features/lists/index.js2
-rw-r--r--app/javascript/mastodon/features/mutes/index.js2
-rw-r--r--app/javascript/mastodon/features/notifications/index.js2
-rw-r--r--app/javascript/mastodon/features/pinned_statuses/index.js2
-rw-r--r--app/javascript/mastodon/features/public_timeline/index.js2
-rw-r--r--app/javascript/mastodon/features/reblogs/index.js2
-rw-r--r--app/javascript/mastodon/features/status/index.js8
-rw-r--r--app/javascript/mastodon/features/ui/components/column_loading.js2
-rw-r--r--app/javascript/mastodon/features/ui/components/tabs_bar.js10
-rw-r--r--app/javascript/mastodon/reducers/compose.js4
-rw-r--r--app/javascript/styles/mastodon/basics.scss2
-rw-r--r--app/javascript/styles/mastodon/components.scss75
34 files changed, 157 insertions, 56 deletions
diff --git a/app/javascript/mastodon/components/column.js b/app/javascript/mastodon/components/column.js
index d45387463..55e3bfd5e 100644
--- a/app/javascript/mastodon/components/column.js
+++ b/app/javascript/mastodon/components/column.js
@@ -8,10 +8,11 @@ export default class Column extends React.PureComponent {
   static propTypes = {
     children: PropTypes.node,
     label: PropTypes.string,
+    bindToDocument: PropTypes.bool,
   };
 
   scrollTop () {
-    const scrollable = this.node.querySelector('.scrollable');
+    const scrollable = this.props.bindToDocument ? document.scrollingElement : this.node.querySelector('.scrollable');
 
     if (!scrollable) {
       return;
@@ -33,11 +34,19 @@ export default class Column extends React.PureComponent {
   }
 
   componentDidMount () {
-    this.node.addEventListener('wheel', this.handleWheel,  detectPassiveEvents.hasSupport ? { passive: true } : false);
+    if (this.props.bindToDocument) {
+      document.addEventListener('wheel', this.handleWheel,  detectPassiveEvents.hasSupport ? { passive: true } : false);
+    } else {
+      this.node.addEventListener('wheel', this.handleWheel,  detectPassiveEvents.hasSupport ? { passive: true } : false);
+    }
   }
 
   componentWillUnmount () {
-    this.node.removeEventListener('wheel', this.handleWheel);
+    if (this.props.bindToDocument) {
+      document.removeEventListener('wheel', this.handleWheel);
+    } else {
+      this.node.removeEventListener('wheel', this.handleWheel);
+    }
   }
 
   render () {
diff --git a/app/javascript/mastodon/components/column_back_button.js b/app/javascript/mastodon/components/column_back_button.js
index f41045787..cc0e5c07c 100644
--- a/app/javascript/mastodon/components/column_back_button.js
+++ b/app/javascript/mastodon/components/column_back_button.js
@@ -2,6 +2,7 @@ import React from 'react';
 import { FormattedMessage } from 'react-intl';
 import PropTypes from 'prop-types';
 import Icon from 'mastodon/components/icon';
+import { createPortal } from 'react-dom';
 
 export default class ColumnBackButton extends React.PureComponent {
 
@@ -9,6 +10,10 @@ export default class ColumnBackButton extends React.PureComponent {
     router: PropTypes.object,
   };
 
+  static propTypes = {
+    multiColumn: PropTypes.bool,
+  };
+
   handleClick = () => {
     if (window.history && window.history.length === 1) {
       this.context.router.history.push('/');
@@ -18,12 +23,20 @@ export default class ColumnBackButton extends React.PureComponent {
   }
 
   render () {
-    return (
+    const { multiColumn } = this.props;
+
+    const component = (
       <button onClick={this.handleClick} className='column-back-button'>
         <Icon id='chevron-left' className='column-back-button__icon' fixedWidth />
         <FormattedMessage id='column_back_button.label' defaultMessage='Back' />
       </button>
     );
+
+    if (multiColumn) {
+      return component;
+    } else {
+      return createPortal(component, document.getElementById('tabs-bar__portal'));
+    }
   }
 
 }
diff --git a/app/javascript/mastodon/components/column_header.js b/app/javascript/mastodon/components/column_header.js
index f33c689e7..89c5fe723 100644
--- a/app/javascript/mastodon/components/column_header.js
+++ b/app/javascript/mastodon/components/column_header.js
@@ -1,5 +1,6 @@
 import React from 'react';
 import PropTypes from 'prop-types';
+import { createPortal } from 'react-dom';
 import classNames from 'classnames';
 import { FormattedMessage, injectIntl, defineMessages } from 'react-intl';
 import Icon from 'mastodon/components/icon';
@@ -28,6 +29,7 @@ class ColumnHeader extends React.PureComponent {
     showBackButton: PropTypes.bool,
     children: PropTypes.node,
     pinned: PropTypes.bool,
+    placeholder: PropTypes.bool,
     onPin: PropTypes.func,
     onMove: PropTypes.func,
     onClick: PropTypes.func,
@@ -79,7 +81,7 @@ class ColumnHeader extends React.PureComponent {
   }
 
   render () {
-    const { title, icon, active, children, pinned, multiColumn, extraButton, showBackButton, intl: { formatMessage } } = this.props;
+    const { title, icon, active, children, pinned, multiColumn, extraButton, showBackButton, intl: { formatMessage }, placeholder } = this.props;
     const { collapsed, animating } = this.state;
 
     const wrapperClassName = classNames('column-header__wrapper', {
@@ -146,7 +148,7 @@ class ColumnHeader extends React.PureComponent {
 
     const hasTitle = icon && title;
 
-    return (
+    const component = (
       <div className={wrapperClassName}>
         <h1 className={buttonClassName}>
           {hasTitle && (
@@ -172,6 +174,12 @@ class ColumnHeader extends React.PureComponent {
         </div>
       </div>
     );
+
+    if (multiColumn || placeholder) {
+      return component;
+    } else {
+      return createPortal(component, document.getElementById('tabs-bar__portal'));
+    }
   }
 
 }
diff --git a/app/javascript/mastodon/features/account_gallery/index.js b/app/javascript/mastodon/features/account_gallery/index.js
index 5d6a53e18..f1a665d8f 100644
--- a/app/javascript/mastodon/features/account_gallery/index.js
+++ b/app/javascript/mastodon/features/account_gallery/index.js
@@ -56,6 +56,7 @@ class AccountGallery extends ImmutablePureComponent {
     isLoading: PropTypes.bool,
     hasMore: PropTypes.bool,
     isAccount: PropTypes.bool,
+    multiColumn: PropTypes.bool,
   };
 
   state = {
@@ -116,7 +117,7 @@ class AccountGallery extends ImmutablePureComponent {
   }
 
   render () {
-    const { attachments, shouldUpdateScroll, isLoading, hasMore, isAccount } = this.props;
+    const { attachments, shouldUpdateScroll, isLoading, hasMore, isAccount, multiColumn } = this.props;
     const { width } = this.state;
 
     if (!isAccount) {
@@ -143,7 +144,7 @@ class AccountGallery extends ImmutablePureComponent {
 
     return (
       <Column>
-        <ColumnBackButton />
+        <ColumnBackButton multiColumn={multiColumn} />
 
         <ScrollContainer scrollKey='account_gallery' shouldUpdateScroll={shouldUpdateScroll}>
           <div className='scrollable scrollable--flex' onScroll={this.handleScroll}>
diff --git a/app/javascript/mastodon/features/account_timeline/index.js b/app/javascript/mastodon/features/account_timeline/index.js
index 9914b7e65..69bab1e86 100644
--- a/app/javascript/mastodon/features/account_timeline/index.js
+++ b/app/javascript/mastodon/features/account_timeline/index.js
@@ -100,7 +100,7 @@ class AccountTimeline extends ImmutablePureComponent {
 
     return (
       <Column>
-        <ColumnBackButton />
+        <ColumnBackButton multiColumn={multiColumn} />
 
         <StatusList
           prepend={<HeaderContainer accountId={this.props.params.accountId} />}
diff --git a/app/javascript/mastodon/features/blocks/index.js b/app/javascript/mastodon/features/blocks/index.js
index 8fb0f051b..051431ed2 100644
--- a/app/javascript/mastodon/features/blocks/index.js
+++ b/app/javascript/mastodon/features/blocks/index.js
@@ -57,7 +57,7 @@ class Blocks extends ImmutablePureComponent {
     const emptyMessage = <FormattedMessage id='empty_column.blocks' defaultMessage="You haven't blocked any users yet." />;
 
     return (
-      <Column icon='ban' heading={intl.formatMessage(messages.heading)}>
+      <Column bindToDocument={!multiColumn} icon='ban' heading={intl.formatMessage(messages.heading)}>
         <ColumnBackButtonSlim />
         <ScrollableList
           scrollKey='blocks'
diff --git a/app/javascript/mastodon/features/community_timeline/index.js b/app/javascript/mastodon/features/community_timeline/index.js
index 2f6999f61..f95fa4970 100644
--- a/app/javascript/mastodon/features/community_timeline/index.js
+++ b/app/javascript/mastodon/features/community_timeline/index.js
@@ -105,7 +105,7 @@ class CommunityTimeline extends React.PureComponent {
     const pinned = !!columnId;
 
     return (
-      <Column ref={this.setRef} label={intl.formatMessage(messages.title)}>
+      <Column bindToDocument={!multiColumn} ref={this.setRef} label={intl.formatMessage(messages.title)}>
         <ColumnHeader
           icon='users'
           active={hasUnread}
diff --git a/app/javascript/mastodon/features/compose/components/text_icon_button.js b/app/javascript/mastodon/features/compose/components/text_icon_button.js
index 9c8ffab1f..f0b133538 100644
--- a/app/javascript/mastodon/features/compose/components/text_icon_button.js
+++ b/app/javascript/mastodon/features/compose/components/text_icon_button.js
@@ -1,6 +1,12 @@
 import React from 'react';
 import PropTypes from 'prop-types';
 
+const iconStyle = {
+  height: null,
+  lineHeight: '27px',
+  width: `${18 * 1.28571429}px`,
+};
+
 export default class TextIconButton extends React.PureComponent {
 
   static propTypes = {
@@ -20,7 +26,14 @@ export default class TextIconButton extends React.PureComponent {
     const { label, title, active, ariaControls } = this.props;
 
     return (
-      <button title={title} aria-label={title} className={`text-icon-button ${active ? 'active' : ''}`} aria-expanded={active} onClick={this.handleClick} aria-controls={ariaControls}>
+      <button
+        title={title}
+        aria-label={title}
+        className={`text-icon-button ${active ? 'active' : ''}`}
+        aria-expanded={active}
+        onClick={this.handleClick}
+        aria-controls={ariaControls} style={iconStyle}
+      >
         {label}
       </button>
     );
diff --git a/app/javascript/mastodon/features/direct_timeline/index.js b/app/javascript/mastodon/features/direct_timeline/index.js
index d202f3bfd..5ce795760 100644
--- a/app/javascript/mastodon/features/direct_timeline/index.js
+++ b/app/javascript/mastodon/features/direct_timeline/index.js
@@ -75,7 +75,7 @@ class DirectTimeline extends React.PureComponent {
     const pinned = !!columnId;
 
     return (
-      <Column ref={this.setRef} label={intl.formatMessage(messages.title)}>
+      <Column bindToDocument={!multiColumn} ref={this.setRef} label={intl.formatMessage(messages.title)}>
         <ColumnHeader
           icon='envelope'
           active={hasUnread}
diff --git a/app/javascript/mastodon/features/domain_blocks/index.js b/app/javascript/mastodon/features/domain_blocks/index.js
index 16e200b31..482245c86 100644
--- a/app/javascript/mastodon/features/domain_blocks/index.js
+++ b/app/javascript/mastodon/features/domain_blocks/index.js
@@ -58,7 +58,7 @@ class Blocks extends ImmutablePureComponent {
     const emptyMessage = <FormattedMessage id='empty_column.domain_blocks' defaultMessage='There are no hidden domains yet.' />;
 
     return (
-      <Column icon='minus-circle' heading={intl.formatMessage(messages.heading)}>
+      <Column bindToDocument={!multiColumn} icon='minus-circle' heading={intl.formatMessage(messages.heading)}>
         <ColumnBackButtonSlim />
         <ScrollableList
           scrollKey='domain_blocks'
diff --git a/app/javascript/mastodon/features/favourited_statuses/index.js b/app/javascript/mastodon/features/favourited_statuses/index.js
index 8c7b23869..db8a3f815 100644
--- a/app/javascript/mastodon/features/favourited_statuses/index.js
+++ b/app/javascript/mastodon/features/favourited_statuses/index.js
@@ -74,7 +74,7 @@ class Favourites extends ImmutablePureComponent {
     const emptyMessage = <FormattedMessage id='empty_column.favourited_statuses' defaultMessage="You don't have any favourite toots yet. When you favourite one, it will show up here." />;
 
     return (
-      <Column ref={this.setRef} label={intl.formatMessage(messages.heading)}>
+      <Column bindToDocument={!multiColumn} ref={this.setRef} label={intl.formatMessage(messages.heading)}>
         <ColumnHeader
           icon='star'
           title={intl.formatMessage(messages.heading)}
diff --git a/app/javascript/mastodon/features/favourites/index.js b/app/javascript/mastodon/features/favourites/index.js
index 464f7aeb0..62d3c2f06 100644
--- a/app/javascript/mastodon/features/favourites/index.js
+++ b/app/javascript/mastodon/features/favourites/index.js
@@ -51,7 +51,7 @@ class Favourites extends ImmutablePureComponent {
 
     return (
       <Column>
-        <ColumnBackButton />
+        <ColumnBackButton multiColumn={multiColumn} />
 
         <ScrollableList
           scrollKey='favourites'
diff --git a/app/javascript/mastodon/features/follow_requests/index.js b/app/javascript/mastodon/features/follow_requests/index.js
index 570cf57c8..57ef44145 100644
--- a/app/javascript/mastodon/features/follow_requests/index.js
+++ b/app/javascript/mastodon/features/follow_requests/index.js
@@ -57,7 +57,7 @@ class FollowRequests extends ImmutablePureComponent {
     const emptyMessage = <FormattedMessage id='empty_column.follow_requests' defaultMessage="You don't have any follow requests yet. When you receive one, it will show up here." />;
 
     return (
-      <Column icon='user-plus' heading={intl.formatMessage(messages.heading)}>
+      <Column bindToDocument={!multiColumn} icon='user-plus' heading={intl.formatMessage(messages.heading)}>
         <ColumnBackButtonSlim />
         <ScrollableList
           scrollKey='follow_requests'
diff --git a/app/javascript/mastodon/features/followers/index.js b/app/javascript/mastodon/features/followers/index.js
index dce05bdc6..3913bf8d0 100644
--- a/app/javascript/mastodon/features/followers/index.js
+++ b/app/javascript/mastodon/features/followers/index.js
@@ -78,7 +78,7 @@ class Followers extends ImmutablePureComponent {
 
     return (
       <Column>
-        <ColumnBackButton />
+        <ColumnBackButton multiColumn={multiColumn} />
 
         <ScrollableList
           scrollKey='followers'
diff --git a/app/javascript/mastodon/features/following/index.js b/app/javascript/mastodon/features/following/index.js
index d9f2ef079..8e126f4c3 100644
--- a/app/javascript/mastodon/features/following/index.js
+++ b/app/javascript/mastodon/features/following/index.js
@@ -78,7 +78,7 @@ class Following extends ImmutablePureComponent {
 
     return (
       <Column>
-        <ColumnBackButton />
+        <ColumnBackButton multiColumn={multiColumn} />
 
         <ScrollableList
           scrollKey='following'
diff --git a/app/javascript/mastodon/features/getting_started/index.js b/app/javascript/mastodon/features/getting_started/index.js
index fc7840ec1..791f22d47 100644
--- a/app/javascript/mastodon/features/getting_started/index.js
+++ b/app/javascript/mastodon/features/getting_started/index.js
@@ -148,7 +148,7 @@ class GettingStarted extends ImmutablePureComponent {
     }
 
     return (
-      <Column label={intl.formatMessage(messages.menu)}>
+      <Column bindToDocument={!multiColumn} label={intl.formatMessage(messages.menu)}>
         {multiColumn && <div className='column-header__wrapper'>
           <h1 className='column-header'>
             <button>
diff --git a/app/javascript/mastodon/features/hashtag_timeline/index.js b/app/javascript/mastodon/features/hashtag_timeline/index.js
index c50f6a79a..28200e6c2 100644
--- a/app/javascript/mastodon/features/hashtag_timeline/index.js
+++ b/app/javascript/mastodon/features/hashtag_timeline/index.js
@@ -135,7 +135,7 @@ class HashtagTimeline extends React.PureComponent {
     const pinned = !!columnId;
 
     return (
-      <Column ref={this.setRef} label={`#${id}`}>
+      <Column bindToDocument={!multiColumn} ref={this.setRef} label={`#${id}`}>
         <ColumnHeader
           icon='hashtag'
           active={hasUnread}
diff --git a/app/javascript/mastodon/features/home_timeline/index.js b/app/javascript/mastodon/features/home_timeline/index.js
index bf8ff117b..1cafb88ed 100644
--- a/app/javascript/mastodon/features/home_timeline/index.js
+++ b/app/javascript/mastodon/features/home_timeline/index.js
@@ -98,7 +98,7 @@ class HomeTimeline extends React.PureComponent {
     const pinned = !!columnId;
 
     return (
-      <Column ref={this.setRef} label={intl.formatMessage(messages.title)}>
+      <Column bindToDocument={!multiColumn} ref={this.setRef} label={intl.formatMessage(messages.title)}>
         <ColumnHeader
           icon='home'
           active={hasUnread}
diff --git a/app/javascript/mastodon/features/keyboard_shortcuts/index.js b/app/javascript/mastodon/features/keyboard_shortcuts/index.js
index 01b45652c..90dc87cbb 100644
--- a/app/javascript/mastodon/features/keyboard_shortcuts/index.js
+++ b/app/javascript/mastodon/features/keyboard_shortcuts/index.js
@@ -18,10 +18,10 @@ class KeyboardShortcuts extends ImmutablePureComponent {
   };
 
   render () {
-    const { intl } = this.props;
+    const { intl, multiColumn } = this.props;
 
     return (
-      <Column icon='question' heading={intl.formatMessage(messages.heading)}>
+      <Column bindToDocument={!multiColumn} icon='question' heading={intl.formatMessage(messages.heading)}>
         <ColumnBackButtonSlim />
         <div className='keyboard-shortcuts scrollable optionally-scrollable'>
           <table>
diff --git a/app/javascript/mastodon/features/list_editor/components/edit_list_form.js b/app/javascript/mastodon/features/list_editor/components/edit_list_form.js
index 3dc59c12e..3ccab12a8 100644
--- a/app/javascript/mastodon/features/list_editor/components/edit_list_form.js
+++ b/app/javascript/mastodon/features/list_editor/components/edit_list_form.js
@@ -11,7 +11,7 @@ const messages = defineMessages({
 
 const mapStateToProps = state => ({
   value: state.getIn(['listEditor', 'title']),
-  disabled: !state.getIn(['listEditor', 'isChanged']),
+  disabled: !state.getIn(['listEditor', 'isChanged']) || !state.getIn(['listEditor', 'title']),
 });
 
 const mapDispatchToProps = dispatch => ({
diff --git a/app/javascript/mastodon/features/list_timeline/index.js b/app/javascript/mastodon/features/list_timeline/index.js
index 844c93db1..f3205b2bf 100644
--- a/app/javascript/mastodon/features/list_timeline/index.js
+++ b/app/javascript/mastodon/features/list_timeline/index.js
@@ -148,14 +148,14 @@ class ListTimeline extends React.PureComponent {
     } else if (list === false) {
       return (
         <Column>
-          <ColumnBackButton />
+          <ColumnBackButton multiColumn={multiColumn} />
           <MissingIndicator />
         </Column>
       );
     }
 
     return (
-      <Column ref={this.setRef} label={title}>
+      <Column bindToDocument={!multiColumn} ref={this.setRef} label={title}>
         <ColumnHeader
           icon='list-ul'
           active={hasUnread}
diff --git a/app/javascript/mastodon/features/lists/components/new_list_form.js b/app/javascript/mastodon/features/lists/components/new_list_form.js
index 739246640..7faf50be8 100644
--- a/app/javascript/mastodon/features/lists/components/new_list_form.js
+++ b/app/javascript/mastodon/features/lists/components/new_list_form.js
@@ -66,7 +66,7 @@ class NewListForm extends React.PureComponent {
         </label>
 
         <IconButton
-          disabled={disabled}
+          disabled={disabled || !value}
           icon='plus'
           title={title}
           onClick={this.handleClick}
diff --git a/app/javascript/mastodon/features/lists/index.js b/app/javascript/mastodon/features/lists/index.js
index a06e0b934..7f7f5009c 100644
--- a/app/javascript/mastodon/features/lists/index.js
+++ b/app/javascript/mastodon/features/lists/index.js
@@ -61,7 +61,7 @@ class Lists extends ImmutablePureComponent {
     const emptyMessage = <FormattedMessage id='empty_column.lists' defaultMessage="You don't have any lists yet. When you create one, it will show up here." />;
 
     return (
-      <Column icon='list-ul' heading={intl.formatMessage(messages.heading)}>
+      <Column bindToDocument={!multiColumn} icon='list-ul' heading={intl.formatMessage(messages.heading)}>
         <ColumnBackButtonSlim />
 
         <NewListForm />
diff --git a/app/javascript/mastodon/features/mutes/index.js b/app/javascript/mastodon/features/mutes/index.js
index 57d8b9915..91dd268c1 100644
--- a/app/javascript/mastodon/features/mutes/index.js
+++ b/app/javascript/mastodon/features/mutes/index.js
@@ -57,7 +57,7 @@ class Mutes extends ImmutablePureComponent {
     const emptyMessage = <FormattedMessage id='empty_column.mutes' defaultMessage="You haven't muted any users yet." />;
 
     return (
-      <Column icon='volume-off' heading={intl.formatMessage(messages.heading)}>
+      <Column bindToDocument={!multiColumn} icon='volume-off' heading={intl.formatMessage(messages.heading)}>
         <ColumnBackButtonSlim />
         <ScrollableList
           scrollKey='mutes'
diff --git a/app/javascript/mastodon/features/notifications/index.js b/app/javascript/mastodon/features/notifications/index.js
index e708c4fcf..f2b239afe 100644
--- a/app/javascript/mastodon/features/notifications/index.js
+++ b/app/javascript/mastodon/features/notifications/index.js
@@ -198,7 +198,7 @@ class Notifications extends React.PureComponent {
     );
 
     return (
-      <Column ref={this.setColumnRef} label={intl.formatMessage(messages.title)}>
+      <Column bindToDocument={!multiColumn} ref={this.setColumnRef} label={intl.formatMessage(messages.title)}>
         <ColumnHeader
           icon='bell'
           active={isUnread}
diff --git a/app/javascript/mastodon/features/pinned_statuses/index.js b/app/javascript/mastodon/features/pinned_statuses/index.js
index 64ebfc7ae..ad5c9cafc 100644
--- a/app/javascript/mastodon/features/pinned_statuses/index.js
+++ b/app/javascript/mastodon/features/pinned_statuses/index.js
@@ -47,7 +47,7 @@ class PinnedStatuses extends ImmutablePureComponent {
     const { intl, shouldUpdateScroll, statusIds, hasMore, multiColumn } = this.props;
 
     return (
-      <Column icon='thumb-tack' heading={intl.formatMessage(messages.heading)} ref={this.setRef}>
+      <Column bindToDocument={!multiColumn} icon='thumb-tack' heading={intl.formatMessage(messages.heading)} ref={this.setRef}>
         <ColumnBackButtonSlim />
         <StatusList
           statusIds={statusIds}
diff --git a/app/javascript/mastodon/features/public_timeline/index.js b/app/javascript/mastodon/features/public_timeline/index.js
index 1edb303b8..e7825e236 100644
--- a/app/javascript/mastodon/features/public_timeline/index.js
+++ b/app/javascript/mastodon/features/public_timeline/index.js
@@ -105,7 +105,7 @@ class PublicTimeline extends React.PureComponent {
     const pinned = !!columnId;
 
     return (
-      <Column ref={this.setRef} label={intl.formatMessage(messages.title)}>
+      <Column bindToDocument={!multiColumn} ref={this.setRef} label={intl.formatMessage(messages.title)}>
         <ColumnHeader
           icon='globe'
           active={hasUnread}
diff --git a/app/javascript/mastodon/features/reblogs/index.js b/app/javascript/mastodon/features/reblogs/index.js
index 26f93ad1b..229f626b3 100644
--- a/app/javascript/mastodon/features/reblogs/index.js
+++ b/app/javascript/mastodon/features/reblogs/index.js
@@ -51,7 +51,7 @@ class Reblogs extends ImmutablePureComponent {
 
     return (
       <Column>
-        <ColumnBackButton />
+        <ColumnBackButton multiColumn={multiColumn} />
 
         <ScrollableList
           scrollKey='reblogs'
diff --git a/app/javascript/mastodon/features/status/index.js b/app/javascript/mastodon/features/status/index.js
index 0422111ae..ad4f75820 100644
--- a/app/javascript/mastodon/features/status/index.js
+++ b/app/javascript/mastodon/features/status/index.js
@@ -146,6 +146,7 @@ class Status extends ImmutablePureComponent {
     descendantsIds: ImmutablePropTypes.list,
     intl: PropTypes.object.isRequired,
     askReplyConfirmation: PropTypes.bool,
+    multiColumn: PropTypes.bool,
     domain: PropTypes.string.isRequired,
   };
 
@@ -437,13 +438,13 @@ class Status extends ImmutablePureComponent {
 
   render () {
     let ancestors, descendants;
-    const { shouldUpdateScroll, status, ancestorsIds, descendantsIds, intl, domain } = this.props;
+    const { shouldUpdateScroll, status, ancestorsIds, descendantsIds, intl, domain, multiColumn } = this.props;
     const { fullscreen } = this.state;
 
     if (status === null) {
       return (
         <Column>
-          <ColumnBackButton />
+          <ColumnBackButton multiColumn={multiColumn} />
           <MissingIndicator />
         </Column>
       );
@@ -470,9 +471,10 @@ class Status extends ImmutablePureComponent {
     };
 
     return (
-      <Column label={intl.formatMessage(messages.detailedStatus)}>
+      <Column bindToDocument={!multiColumn} label={intl.formatMessage(messages.detailedStatus)}>
         <ColumnHeader
           showBackButton
+          multiColumn={multiColumn}
           extraButton={(
             <button className='column-header__button' title={intl.formatMessage(status.get('hidden') ? messages.revealAll : messages.hideAll)} aria-label={intl.formatMessage(status.get('hidden') ? messages.revealAll : messages.hideAll)} onClick={this.handleToggleAll} aria-pressed={status.get('hidden') ? 'false' : 'true'}><Icon id={status.get('hidden') ? 'eye-slash' : 'eye'} /></button>
           )}
diff --git a/app/javascript/mastodon/features/ui/components/column_loading.js b/app/javascript/mastodon/features/ui/components/column_loading.js
index 9503a7a1a..0cdfd05d8 100644
--- a/app/javascript/mastodon/features/ui/components/column_loading.js
+++ b/app/javascript/mastodon/features/ui/components/column_loading.js
@@ -21,7 +21,7 @@ export default class ColumnLoading extends ImmutablePureComponent {
     let { title, icon } = this.props;
     return (
       <Column>
-        <ColumnHeader icon={icon} title={title} multiColumn={false} focusable={false} />
+        <ColumnHeader icon={icon} title={title} multiColumn={false} focusable={false} placeholder />
         <div className='scrollable' />
       </Column>
     );
diff --git a/app/javascript/mastodon/features/ui/components/tabs_bar.js b/app/javascript/mastodon/features/ui/components/tabs_bar.js
index 29583d3d7..1911da8ba 100644
--- a/app/javascript/mastodon/features/ui/components/tabs_bar.js
+++ b/app/javascript/mastodon/features/ui/components/tabs_bar.js
@@ -73,9 +73,13 @@ class TabsBar extends React.PureComponent {
     const { intl: { formatMessage } } = this.props;
 
     return (
-      <nav className='tabs-bar' ref={this.setRef}>
-        {links.map(link => React.cloneElement(link, { key: link.props.to, onClick: this.handleClick, 'aria-label': formatMessage({ id: link.props['data-preview-title-id'] }) }))}
-      </nav>
+      <div className='tabs-bar__wrapper'>
+        <nav className='tabs-bar' ref={this.setRef}>
+          {links.map(link => React.cloneElement(link, { key: link.props.to, onClick: this.handleClick, 'aria-label': formatMessage({ id: link.props['data-preview-title-id'] }) }))}
+        </nav>
+
+        <div id='tabs-bar__portal' />
+      </div>
     );
   }
 
diff --git a/app/javascript/mastodon/reducers/compose.js b/app/javascript/mastodon/reducers/compose.js
index e683a9c1a..7b0cdd5a5 100644
--- a/app/javascript/mastodon/reducers/compose.js
+++ b/app/javascript/mastodon/reducers/compose.js
@@ -153,9 +153,9 @@ const sortHashtagsByUse = (state, tags) => {
     if (usedA === usedB) {
       return 0;
     } else if (usedA && !usedB) {
-      return 1;
-    } else {
       return -1;
+    } else {
+      return 1;
     }
   });
 };
diff --git a/app/javascript/styles/mastodon/basics.scss b/app/javascript/styles/mastodon/basics.scss
index 7df76bdff..7b983efab 100644
--- a/app/javascript/styles/mastodon/basics.scss
+++ b/app/javascript/styles/mastodon/basics.scss
@@ -39,7 +39,7 @@ body {
 
     &.layout-single-column {
       height: auto;
-      min-height: 100%;
+      min-height: 100vh;
       overflow-y: scroll;
     }
 
diff --git a/app/javascript/styles/mastodon/components.scss b/app/javascript/styles/mastodon/components.scss
index 1853cd2e5..97ef06efe 100644
--- a/app/javascript/styles/mastodon/components.scss
+++ b/app/javascript/styles/mastodon/components.scss
@@ -129,19 +129,28 @@
   padding: 0;
   color: $action-button-color;
   border: 0;
+  border-radius: 4px;
   background: transparent;
   cursor: pointer;
-  transition: color 100ms ease-in;
+  transition: all 100ms ease-in;
+  transition-property: background-color, color;
 
   &:hover,
   &:active,
   &:focus {
     color: lighten($action-button-color, 7%);
-    transition: color 200ms ease-out;
+    background-color: rgba($action-button-color, 0.15);
+    transition: all 200ms ease-out;
+    transition-property: background-color, color;
+  }
+
+  &:focus {
+    background-color: rgba($action-button-color, 0.3);
   }
 
   &.disabled {
     color: darken($action-button-color, 13%);
+    background-color: transparent;
     cursor: default;
   }
 
@@ -166,10 +175,16 @@
     &:active,
     &:focus {
       color: darken($lighter-text-color, 7%);
+      background-color: rgba($lighter-text-color, 0.15);
+    }
+
+    &:focus {
+      background-color: rgba($lighter-text-color, 0.3);
     }
 
     &.disabled {
       color: lighten($lighter-text-color, 7%);
+      background-color: transparent;
     }
 
     &.active {
@@ -197,6 +212,7 @@
 .text-icon-button {
   color: $lighter-text-color;
   border: 0;
+  border-radius: 4px;
   background: transparent;
   cursor: pointer;
   font-weight: 600;
@@ -204,17 +220,25 @@
   padding: 0 3px;
   line-height: 27px;
   outline: 0;
-  transition: color 100ms ease-in;
+  transition: all 100ms ease-in;
+  transition-property: background-color, color;
 
   &:hover,
   &:active,
   &:focus {
     color: darken($lighter-text-color, 7%);
-    transition: color 200ms ease-out;
+    background-color: rgba($lighter-text-color, 0.15);
+    transition: all 200ms ease-out;
+    transition-property: background-color, color;
+  }
+
+  &:focus {
+    background-color: rgba($lighter-text-color, 0.3);
   }
 
   &.disabled {
     color: lighten($lighter-text-color, 20%);
+    background-color: transparent;
     cursor: default;
   }
 
@@ -604,7 +628,8 @@
       }
     }
 
-    .icon-button {
+    .icon-button,
+    .text-icon-button {
       box-sizing: content-box;
       padding: 0 3px;
     }
@@ -731,7 +756,7 @@
     white-space: pre-wrap;
 
     &:last-child {
-      margin-bottom: 2px;
+      margin-bottom: 0;
     }
   }
 
@@ -1852,6 +1877,26 @@ a.account__display-name {
   }
 }
 
+.tabs-bar__wrapper {
+  background: darken($ui-base-color, 8%);
+  position: sticky;
+  top: 0;
+  z-index: 2;
+  padding-top: 0;
+
+  @media screen and (min-width: $no-gap-breakpoint) {
+    padding-top: 10px;
+  }
+
+  .tabs-bar {
+    margin-bottom: 0;
+
+    @media screen and (min-width: $no-gap-breakpoint) {
+      margin-bottom: 10px;
+    }
+  }
+}
+
 .react-swipeable-view-container {
   &,
   .columns-area,
@@ -1949,9 +1994,6 @@ a.account__display-name {
   background: lighten($ui-base-color, 8%);
   flex: 0 0 auto;
   overflow-y: auto;
-  position: sticky;
-  top: 0;
-  z-index: 3;
 }
 
 .tabs-bar__link {
@@ -2014,6 +2056,14 @@ a.account__display-name {
     padding: 0;
   }
 
+  //.column {
+  //  margin-top: 0;
+
+  //  @media screen and (min-width: $no-gap-breakpoint) {
+  //    margin-top: 10px;
+  //  }
+  //}
+
   .autosuggest-textarea__textarea {
     font-size: 16px;
   }
@@ -2039,6 +2089,7 @@ a.account__display-name {
 
   @media screen and (min-width: $no-gap-breakpoint) {
     padding: 10px 0;
+    padding-top: 0;
   }
 
   @media screen and (min-width: 630px) {
@@ -2153,13 +2204,11 @@ a.account__display-name {
 
 @media screen and (min-width: $no-gap-breakpoint) {
   .tabs-bar {
-    margin: 10px auto;
-    margin-bottom: 0;
     width: 100%;
   }
 
   .react-swipeable-view-container .columns-area--mobile {
-    height: calc(100% - 20px) !important;
+    height: calc(100% - 10px) !important;
   }
 
   .getting-started__wrapper,
@@ -2387,6 +2436,8 @@ a.account__display-name {
 }
 
 .column-back-button {
+  box-sizing: border-box;
+  width: 100%;
   background: lighten($ui-base-color, 4%);
   color: $highlight-text-color;
   cursor: pointer;