From e57047f213522b68f9e713270c7d0fcd0f829b92 Mon Sep 17 00:00:00 2001
From: ThibG <thib@sitedethib.com>
Date: Sun, 31 Jan 2021 21:25:31 +0100
Subject: [PATCH] Change custom emoji to be animated when hovering container
 (#15637)

Co-authored-by: Claire <claire.github-309c@sitedethib.com>
---
 .../__snapshots__/display_name-test.js.snap   |  2 +
 .../mastodon/components/display_name.js       | 43 +++++----------
 .../mastodon/components/status_content.js     | 43 +++++++--------
 .../features/account/components/header.js     | 43 +++++----------
 .../components/conversation.js                | 43 +++++----------
 .../directory/components/account_card.js      | 47 ++++++----------
 .../components/announcements.js               | 53 +++++++++----------
 7 files changed, 103 insertions(+), 171 deletions(-)

diff --git a/app/javascript/mastodon/components/__tests__/__snapshots__/display_name-test.js.snap b/app/javascript/mastodon/components/__tests__/__snapshots__/display_name-test.js.snap
index 29fdc2412d..0f27473af4 100644
--- a/app/javascript/mastodon/components/__tests__/__snapshots__/display_name-test.js.snap
+++ b/app/javascript/mastodon/components/__tests__/__snapshots__/display_name-test.js.snap
@@ -3,6 +3,8 @@
 exports[`<DisplayName /> renders display name + account name 1`] = `
 <span
   className="display-name"
+  onMouseEnter={[Function]}
+  onMouseLeave={[Function]}
 >
   <bdi>
     <strong
diff --git a/app/javascript/mastodon/components/display_name.js b/app/javascript/mastodon/components/display_name.js
index 70ef82789e..7ccfbd0cd5 100644
--- a/app/javascript/mastodon/components/display_name.js
+++ b/app/javascript/mastodon/components/display_name.js
@@ -11,45 +11,30 @@ export default class DisplayName extends React.PureComponent {
     localDomain: PropTypes.string,
   };
 
-  _updateEmojis () {
-    const node = this.node;
-
-    if (!node || autoPlayGif) {
+  handleMouseEnter = ({ currentTarget }) => {
+    if (autoPlayGif) {
       return;
     }
 
-    const emojis = node.querySelectorAll('.custom-emoji');
+    const emojis = currentTarget.querySelectorAll('.custom-emoji');
 
     for (var i = 0; i < emojis.length; i++) {
       let emoji = emojis[i];
-      if (emoji.classList.contains('status-emoji')) {
-        continue;
-      }
-      emoji.classList.add('status-emoji');
-
-      emoji.addEventListener('mouseenter', this.handleEmojiMouseEnter, false);
-      emoji.addEventListener('mouseleave', this.handleEmojiMouseLeave, false);
+      emoji.src = emoji.getAttribute('data-original');
     }
   }
 
-  componentDidMount () {
-    this._updateEmojis();
-  }
+  handleMouseLeave = ({ currentTarget }) => {
+    if (autoPlayGif) {
+      return;
+    }
 
-  componentDidUpdate () {
-    this._updateEmojis();
-  }
+    const emojis = currentTarget.querySelectorAll('.custom-emoji');
 
-  handleEmojiMouseEnter = ({ target }) => {
-    target.src = target.getAttribute('data-original');
-  }
-
-  handleEmojiMouseLeave = ({ target }) => {
-    target.src = target.getAttribute('data-static');
-  }
-
-  setRef = (c) => {
-    this.node = c;
+    for (var i = 0; i < emojis.length; i++) {
+      let emoji = emojis[i];
+      emoji.src = emoji.getAttribute('data-static');
+    }
   }
 
   render () {
@@ -81,7 +66,7 @@ export default class DisplayName extends React.PureComponent {
     }
 
     return (
-      <span className='display-name' ref={this.setRef}>
+      <span className='display-name' onMouseEnter={this.handleMouseEnter} onMouseLeave={this.handleMouseLeave}>
         {displayName} {suffix}
       </span>
     );
diff --git a/app/javascript/mastodon/components/status_content.js b/app/javascript/mastodon/components/status_content.js
index 190ced1a80..35bd505142 100644
--- a/app/javascript/mastodon/components/status_content.js
+++ b/app/javascript/mastodon/components/status_content.js
@@ -75,35 +75,38 @@ export default class StatusContent extends React.PureComponent {
     }
   }
 
-  _updateStatusEmojis () {
-    const node = this.node;
-
-    if (!node || autoPlayGif) {
+  handleMouseEnter = ({ currentTarget }) => {
+    if (autoPlayGif) {
       return;
     }
 
-    const emojis = node.querySelectorAll('.custom-emoji');
+    const emojis = currentTarget.querySelectorAll('.custom-emoji');
 
     for (var i = 0; i < emojis.length; i++) {
       let emoji = emojis[i];
-      if (emoji.classList.contains('status-emoji')) {
-        continue;
-      }
-      emoji.classList.add('status-emoji');
+      emoji.src = emoji.getAttribute('data-original');
+    }
+  }
 
-      emoji.addEventListener('mouseenter', this.handleEmojiMouseEnter, false);
-      emoji.addEventListener('mouseleave', this.handleEmojiMouseLeave, false);
+  handleMouseLeave = ({ currentTarget }) => {
+    if (autoPlayGif) {
+      return;
+    }
+
+    const emojis = currentTarget.querySelectorAll('.custom-emoji');
+
+    for (var i = 0; i < emojis.length; i++) {
+      let emoji = emojis[i];
+      emoji.src = emoji.getAttribute('data-static');
     }
   }
 
   componentDidMount () {
     this._updateStatusLinks();
-    this._updateStatusEmojis();
   }
 
   componentDidUpdate () {
     this._updateStatusLinks();
-    this._updateStatusEmojis();
   }
 
   onMentionClick = (mention, e) => {
@@ -122,14 +125,6 @@ export default class StatusContent extends React.PureComponent {
     }
   }
 
-  handleEmojiMouseEnter = ({ target }) => {
-    target.src = target.getAttribute('data-original');
-  }
-
-  handleEmojiMouseLeave = ({ target }) => {
-    target.src = target.getAttribute('data-static');
-  }
-
   handleMouseDown = (e) => {
     this.startXY = [e.clientX, e.clientY];
   }
@@ -219,7 +214,7 @@ export default class StatusContent extends React.PureComponent {
       }
 
       return (
-        <div className={classNames} ref={this.setRef} tabIndex='0' onMouseDown={this.handleMouseDown} onMouseUp={this.handleMouseUp}>
+        <div className={classNames} ref={this.setRef} tabIndex='0' onMouseDown={this.handleMouseDown} onMouseUp={this.handleMouseUp} onMouseEnter={this.handleMouseEnter} onMouseLeave={this.handleMouseLeave}>
           <p style={{ marginBottom: hidden && status.get('mentions').isEmpty() ? '0px' : null }}>
             <span dangerouslySetInnerHTML={spoilerContent} className='translate' />
             {' '}
@@ -237,7 +232,7 @@ export default class StatusContent extends React.PureComponent {
       );
     } else if (this.props.onClick) {
       const output = [
-        <div className={classNames} ref={this.setRef} tabIndex='0' onMouseDown={this.handleMouseDown} onMouseUp={this.handleMouseUp} key='status-content'>
+        <div className={classNames} ref={this.setRef} tabIndex='0' onMouseDown={this.handleMouseDown} onMouseUp={this.handleMouseUp} key='status-content' onMouseEnter={this.handleMouseEnter} onMouseLeave={this.handleMouseLeave}>
           <div className='status__content__text status__content__text--visible translate' dangerouslySetInnerHTML={content} />
 
           {!!status.get('poll') && <PollContainer pollId={status.get('poll')} />}
@@ -253,7 +248,7 @@ export default class StatusContent extends React.PureComponent {
       return output;
     } else {
       return (
-        <div className={classNames} ref={this.setRef} tabIndex='0'>
+        <div className={classNames} ref={this.setRef} tabIndex='0' onMouseEnter={this.handleMouseEnter} onMouseLeave={this.handleMouseLeave}>
           <div className='status__content__text status__content__text--visible translate' dangerouslySetInnerHTML={content} />
 
           {!!status.get('poll') && <PollContainer pollId={status.get('poll')} />}
diff --git a/app/javascript/mastodon/features/account/components/header.js b/app/javascript/mastodon/features/account/components/header.js
index 2087fc3b80..8e49486bda 100644
--- a/app/javascript/mastodon/features/account/components/header.js
+++ b/app/javascript/mastodon/features/account/components/header.js
@@ -96,45 +96,30 @@ class Header extends ImmutablePureComponent {
     return !location.pathname.match(/\/(followers|following)\/?$/);
   }
 
-  _updateEmojis () {
-    const node = this.node;
-
-    if (!node || autoPlayGif) {
+  handleMouseEnter = ({ currentTarget }) => {
+    if (autoPlayGif) {
       return;
     }
 
-    const emojis = node.querySelectorAll('.custom-emoji');
+    const emojis = currentTarget.querySelectorAll('.custom-emoji');
 
     for (var i = 0; i < emojis.length; i++) {
       let emoji = emojis[i];
-      if (emoji.classList.contains('status-emoji')) {
-        continue;
-      }
-      emoji.classList.add('status-emoji');
-
-      emoji.addEventListener('mouseenter', this.handleEmojiMouseEnter, false);
-      emoji.addEventListener('mouseleave', this.handleEmojiMouseLeave, false);
+      emoji.src = emoji.getAttribute('data-original');
     }
   }
 
-  componentDidMount () {
-    this._updateEmojis();
-  }
+  handleMouseLeave = ({ currentTarget }) => {
+    if (autoPlayGif) {
+      return;
+    }
 
-  componentDidUpdate () {
-    this._updateEmojis();
-  }
+    const emojis = currentTarget.querySelectorAll('.custom-emoji');
 
-  handleEmojiMouseEnter = ({ target }) => {
-    target.src = target.getAttribute('data-original');
-  }
-
-  handleEmojiMouseLeave = ({ target }) => {
-    target.src = target.getAttribute('data-static');
-  }
-
-  setRef = (c) => {
-    this.node = c;
+    for (var i = 0; i < emojis.length; i++) {
+      let emoji = emojis[i];
+      emoji.src = emoji.getAttribute('data-static');
+    }
   }
 
   render () {
@@ -276,7 +261,7 @@ class Header extends ImmutablePureComponent {
     }
 
     return (
-      <div className={classNames('account__header', { inactive: !!account.get('moved') })} ref={this.setRef}>
+      <div className={classNames('account__header', { inactive: !!account.get('moved') })} onMouseEnter={this.handleMouseEnter} onMouseLeave={this.handleMouseLeave}>
         <div className='account__header__image'>
           <div className='account__header__info'>
             {!suspended && info}
diff --git a/app/javascript/mastodon/features/direct_timeline/components/conversation.js b/app/javascript/mastodon/features/direct_timeline/components/conversation.js
index 6ecc27facd..43e1d77b94 100644
--- a/app/javascript/mastodon/features/direct_timeline/components/conversation.js
+++ b/app/javascript/mastodon/features/direct_timeline/components/conversation.js
@@ -44,41 +44,30 @@ class Conversation extends ImmutablePureComponent {
     intl: PropTypes.object.isRequired,
   };
 
-  _updateEmojis () {
-    const node = this.namesNode;
-
-    if (!node || autoPlayGif) {
+  handleMouseEnter = ({ currentTarget }) => {
+    if (autoPlayGif) {
       return;
     }
 
-    const emojis = node.querySelectorAll('.custom-emoji');
+    const emojis = currentTarget.querySelectorAll('.custom-emoji');
 
     for (var i = 0; i < emojis.length; i++) {
       let emoji = emojis[i];
-      if (emoji.classList.contains('status-emoji')) {
-        continue;
-      }
-      emoji.classList.add('status-emoji');
-
-      emoji.addEventListener('mouseenter', this.handleEmojiMouseEnter, false);
-      emoji.addEventListener('mouseleave', this.handleEmojiMouseLeave, false);
+      emoji.src = emoji.getAttribute('data-original');
     }
   }
 
-  componentDidMount () {
-    this._updateEmojis();
-  }
+  handleMouseLeave = ({ currentTarget }) => {
+    if (autoPlayGif) {
+      return;
+    }
 
-  componentDidUpdate () {
-    this._updateEmojis();
-  }
+    const emojis = currentTarget.querySelectorAll('.custom-emoji');
 
-  handleEmojiMouseEnter = ({ target }) => {
-    target.src = target.getAttribute('data-original');
-  }
-
-  handleEmojiMouseLeave = ({ target }) => {
-    target.src = target.getAttribute('data-static');
+    for (var i = 0; i < emojis.length; i++) {
+      let emoji = emojis[i];
+      emoji.src = emoji.getAttribute('data-static');
+    }
   }
 
   handleClick = () => {
@@ -123,10 +112,6 @@ class Conversation extends ImmutablePureComponent {
     this.props.onToggleHidden(this.props.lastStatus);
   }
 
-  setNamesRef = (c) => {
-    this.namesNode = c;
-  }
-
   render () {
     const { accounts, lastStatus, unread, scrollKey, intl } = this.props;
 
@@ -171,7 +156,7 @@ class Conversation extends ImmutablePureComponent {
                 {unread && <span className='conversation__unread' />} <RelativeTimestamp timestamp={lastStatus.get('created_at')} />
               </div>
 
-              <div className='conversation__content__names' ref={this.setNamesRef}>
+              <div className='conversation__content__names' onMouseEnter={this.handleMouseEnter} onMouseLeave={this.handleMouseLeave}>
                 <FormattedMessage id='conversation.with' defaultMessage='With {names}' values={{ names: <span>{names}</span> }} />
               </div>
             </div>
diff --git a/app/javascript/mastodon/features/directory/components/account_card.js b/app/javascript/mastodon/features/directory/components/account_card.js
index e377338280..8f0e8db4b4 100644
--- a/app/javascript/mastodon/features/directory/components/account_card.js
+++ b/app/javascript/mastodon/features/directory/components/account_card.js
@@ -102,43 +102,32 @@ class AccountCard extends ImmutablePureComponent {
     onMute: PropTypes.func.isRequired,
   };
 
-  _updateEmojis() {
-    const node = this.node;
-
-    if (!node || autoPlayGif) {
+  handleMouseEnter = ({ currentTarget }) => {
+    if (autoPlayGif) {
       return;
     }
 
-    const emojis = node.querySelectorAll('.custom-emoji');
+    const emojis = currentTarget.querySelectorAll('.custom-emoji');
 
     for (var i = 0; i < emojis.length; i++) {
       let emoji = emojis[i];
-      if (emoji.classList.contains('status-emoji')) {
-        continue;
-      }
-      emoji.classList.add('status-emoji');
-
-      emoji.addEventListener('mouseenter', this.handleEmojiMouseEnter, false);
-      emoji.addEventListener('mouseleave', this.handleEmojiMouseLeave, false);
+      emoji.src = emoji.getAttribute('data-original');
     }
   }
 
-  componentDidMount() {
-    this._updateEmojis();
+  handleMouseLeave = ({ currentTarget }) => {
+    if (autoPlayGif) {
+      return;
+    }
+
+    const emojis = currentTarget.querySelectorAll('.custom-emoji');
+
+    for (var i = 0; i < emojis.length; i++) {
+      let emoji = emojis[i];
+      emoji.src = emoji.getAttribute('data-static');
+    }
   }
 
-  componentDidUpdate() {
-    this._updateEmojis();
-  }
-
-  handleEmojiMouseEnter = ({ target }) => {
-    target.src = target.getAttribute('data-original');
-  };
-
-  handleEmojiMouseLeave = ({ target }) => {
-    target.src = target.getAttribute('data-static');
-  };
-
   handleFollow = () => {
     this.props.onFollow(this.props.account);
   };
@@ -151,10 +140,6 @@ class AccountCard extends ImmutablePureComponent {
     this.props.onMute(this.props.account);
   };
 
-  setRef = (c) => {
-    this.node = c;
-  };
-
   render() {
     const { account, intl } = this.props;
 
@@ -239,7 +224,7 @@ class AccountCard extends ImmutablePureComponent {
           </div>
         </div>
 
-        <div className='directory__card__extra' ref={this.setRef}>
+        <div className='directory__card__extra' onMouseEnter={this.handleMouseEnter} onMouseLeave={this.handleMouseLeave}>
           <div
             className='account__header__content translate'
             dangerouslySetInnerHTML={{ __html: account.get('note_emojified') }}
diff --git a/app/javascript/mastodon/features/getting_started/components/announcements.js b/app/javascript/mastodon/features/getting_started/components/announcements.js
index 4534f7121d..ff1566e05c 100644
--- a/app/javascript/mastodon/features/getting_started/components/announcements.js
+++ b/app/javascript/mastodon/features/getting_started/components/announcements.js
@@ -39,35 +39,10 @@ class Content extends ImmutablePureComponent {
 
   componentDidMount () {
     this._updateLinks();
-    this._updateEmojis();
   }
 
   componentDidUpdate () {
     this._updateLinks();
-    this._updateEmojis();
-  }
-
-  _updateEmojis () {
-    const node = this.node;
-
-    if (!node || autoPlayGif) {
-      return;
-    }
-
-    const emojis = node.querySelectorAll('.custom-emoji');
-
-    for (var i = 0; i < emojis.length; i++) {
-      let emoji = emojis[i];
-
-      if (emoji.classList.contains('status-emoji')) {
-        continue;
-      }
-
-      emoji.classList.add('status-emoji');
-
-      emoji.addEventListener('mouseenter', this.handleEmojiMouseEnter, false);
-      emoji.addEventListener('mouseleave', this.handleEmojiMouseLeave, false);
-    }
   }
 
   _updateLinks () {
@@ -132,12 +107,30 @@ class Content extends ImmutablePureComponent {
     }
   }
 
-  handleEmojiMouseEnter = ({ target }) => {
-    target.src = target.getAttribute('data-original');
+  handleMouseEnter = ({ currentTarget }) => {
+    if (autoPlayGif) {
+      return;
+    }
+
+    const emojis = currentTarget.querySelectorAll('.custom-emoji');
+
+    for (var i = 0; i < emojis.length; i++) {
+      let emoji = emojis[i];
+      emoji.src = emoji.getAttribute('data-original');
+    }
   }
 
-  handleEmojiMouseLeave = ({ target }) => {
-    target.src = target.getAttribute('data-static');
+  handleMouseLeave = ({ currentTarget }) => {
+    if (autoPlayGif) {
+      return;
+    }
+
+    const emojis = currentTarget.querySelectorAll('.custom-emoji');
+
+    for (var i = 0; i < emojis.length; i++) {
+      let emoji = emojis[i];
+      emoji.src = emoji.getAttribute('data-static');
+    }
   }
 
   render () {
@@ -148,6 +141,8 @@ class Content extends ImmutablePureComponent {
         className='announcements__item__content translate'
         ref={this.setRef}
         dangerouslySetInnerHTML={{ __html: announcement.get('contentHtml') }}
+        onMouseEnter={this.handleMouseEnter}
+        onMouseLeave={this.handleMouseLeave}
       />
     );
   }