From 2dee293c4c98486d387105224023fad02b8b0d96 Mon Sep 17 00:00:00 2001
From: Eugen Rochko <eugen@zeonfederated.com>
Date: Thu, 1 Aug 2019 19:17:17 +0200
Subject: [PATCH] Fix scroll to top in single column UI (#11463)

---
 app/javascript/mastodon/components/column.js      | 15 ++++++++++++---
 .../mastodon/components/column_back_button.js     | 15 ++++++++++++++-
 .../mastodon/features/account_gallery/index.js    |  5 +++--
 .../mastodon/features/account_timeline/index.js   |  2 +-
 app/javascript/mastodon/features/blocks/index.js  |  2 +-
 .../mastodon/features/community_timeline/index.js |  2 +-
 .../mastodon/features/direct_timeline/index.js    |  2 +-
 .../mastodon/features/domain_blocks/index.js      |  2 +-
 .../features/favourited_statuses/index.js         |  2 +-
 .../mastodon/features/favourites/index.js         |  2 +-
 .../mastodon/features/follow_requests/index.js    |  2 +-
 .../mastodon/features/followers/index.js          |  2 +-
 .../mastodon/features/following/index.js          |  2 +-
 .../mastodon/features/getting_started/index.js    |  2 +-
 .../mastodon/features/hashtag_timeline/index.js   |  2 +-
 .../mastodon/features/home_timeline/index.js      |  2 +-
 .../mastodon/features/keyboard_shortcuts/index.js |  4 ++--
 .../mastodon/features/list_timeline/index.js      |  4 ++--
 app/javascript/mastodon/features/lists/index.js   |  2 +-
 app/javascript/mastodon/features/mutes/index.js   |  2 +-
 .../mastodon/features/notifications/index.js      |  2 +-
 .../mastodon/features/pinned_statuses/index.js    |  2 +-
 .../mastodon/features/public_timeline/index.js    |  2 +-
 app/javascript/mastodon/features/reblogs/index.js |  2 +-
 app/javascript/mastodon/features/status/index.js  |  2 +-
 app/javascript/styles/mastodon/components.scss    |  2 ++
 26 files changed, 55 insertions(+), 30 deletions(-)

diff --git a/app/javascript/mastodon/components/column.js b/app/javascript/mastodon/components/column.js
index d453874636..55e3bfd5e0 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 f41045787e..cc0e5c07c3 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/features/account_gallery/index.js b/app/javascript/mastodon/features/account_gallery/index.js
index 5d6a53e18e..f1a665d8ff 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 9914b7e654..69bab1e86e 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 8fb0f051b3..051431ed29 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 2f6999f614..f95fa49709 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/direct_timeline/index.js b/app/javascript/mastodon/features/direct_timeline/index.js
index d202f3bfd9..5ce7957600 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 16e200b31e..482245c867 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 8c7b238696..db8a3f815f 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 464f7aeb0a..62d3c2f067 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 570cf57c8a..57ef441454 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 dce05bdc62..3913bf8d07 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 d9f2ef0790..8e126f4c39 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 fc7840ec19..791f22d471 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 c50f6a79ae..28200e6c21 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 bf8ff117bb..1cafb88eda 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 01b45652c5..90dc87cbb0 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_timeline/index.js b/app/javascript/mastodon/features/list_timeline/index.js
index 844c93db1e..f3205b2bff 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/index.js b/app/javascript/mastodon/features/lists/index.js
index a06e0b934f..7f7f5009ca 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 57d8b9915f..91dd268c16 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 e708c4fcf1..f2b239afed 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 64ebfc7ae5..ad5c9cafc3 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 1edb303b84..e7825e2366 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 26f93ad1b2..229f626b3e 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 6c8cf3f1bd..ad4f758207 100644
--- a/app/javascript/mastodon/features/status/index.js
+++ b/app/javascript/mastodon/features/status/index.js
@@ -471,7 +471,7 @@ class Status extends ImmutablePureComponent {
     };
 
     return (
-      <Column label={intl.formatMessage(messages.detailedStatus)}>
+      <Column bindToDocument={!multiColumn} label={intl.formatMessage(messages.detailedStatus)}>
         <ColumnHeader
           showBackButton
           multiColumn={multiColumn}
diff --git a/app/javascript/styles/mastodon/components.scss b/app/javascript/styles/mastodon/components.scss
index b979c9b9a6..57b387b0db 100644
--- a/app/javascript/styles/mastodon/components.scss
+++ b/app/javascript/styles/mastodon/components.scss
@@ -2411,6 +2411,8 @@ 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;