Show user what options they have voted (#11195)

* Add own_votes field to poll results in REST API

Fixes #10679

* Display user votes in WebUI

* Update styling

* Add vote checkmark to public pages

6 files changed, 31 insertions, 6 deletions

diff --git a/app/javascript/mastodon/actions/importer/normalizer.js b/app/javascript/mastodon/actions/importer/normalizer.js
index 5e7e78e69..f7108fdb9 100644
--- a/app/javascript/mastodon/actions/importer/normalizer.js
+++ b/app/javascript/mastodon/actions/importer/normalizer.js
@@ -73,8 +73,9 @@ export function normalizePoll(poll) {
 
   const emojiMap = makeEmojiMap(normalPoll);
 
-  normalPoll.options = poll.options.map(option => ({
+  normalPoll.options = poll.options.map((option, index) => ({
     ...option,
+    voted: poll.own_votes && poll.own_votes.includes(index),
     title_emojified: emojify(escapeTextContentForBrowser(option.title), emojiMap),
   }));
 
diff --git a/app/javascript/mastodon/components/poll.js b/app/javascript/mastodon/components/poll.js
index 373f710d3..4c9b23b77 100644
--- a/app/javascript/mastodon/components/poll.js
+++ b/app/javascript/mastodon/components/poll.js
@@ -10,6 +10,7 @@ import spring from 'react-motion/lib/spring';
 import escapeTextContentForBrowser from 'escape-html';
 import emojify from 'mastodon/features/emoji/emoji';
 import RelativeTimestamp from './relative_timestamp';
+import Icon from 'mastodon/components/icon';
 
 const messages = defineMessages({
   closed: { id: 'poll.closed', defaultMessage: 'Closed' },
@@ -103,6 +104,7 @@ class Poll extends ImmutablePureComponent {
     const percent            = poll.get('votes_count') === 0 ? 0 : (option.get('votes_count') / poll.get('votes_count')) * 100;
     const leading            = poll.get('options').filterNot(other => other.get('title') === option.get('title')).every(other => option.get('votes_count') > other.get('votes_count'));
     const active             = !!this.state.selected[`${optionIndex}`];
+    const voted              = option.get('voted') || (poll.get('own_votes') && poll.get('own_votes').includes(optionIndex));
 
     let titleEmojified = option.get('title_emojified');
     if (!titleEmojified) {
@@ -131,7 +133,10 @@ class Poll extends ImmutablePureComponent {
           />
 
           {!showResults && <span className={classNames('poll__input', { checkbox: poll.get('multiple'), active })} />}
-          {showResults && <span className='poll__number'>{Math.round(percent)}%</span>}
+          {showResults && <span className='poll__number'>
+            {!!voted && <Icon id='check' className='poll__vote__mark' />}
+            {Math.round(percent)}%
+          </span>}
 
           <span dangerouslySetInnerHTML={{ __html: titleEmojified }} />
         </label>
diff --git a/app/javascript/styles/mastodon/polls.scss b/app/javascript/styles/mastodon/polls.scss
index e80220f27..85ba138b4 100644
--- a/app/javascript/styles/mastodon/polls.scss
+++ b/app/javascript/styles/mastodon/polls.scss
@@ -95,13 +95,19 @@
 
   &__number {
     display: inline-block;
-    width: 36px;
+    width: 48px;
     font-weight: 700;
     padding: 0 10px;
     text-align: right;
     margin-top: auto;
     margin-bottom: auto;
-    flex: 0 0 36px;
+    flex: 0 0 48px;
+  }
+
+  &__vote__mark {
+    float: left;
+    color: $valid-value-color;
+    line-height: 18px;
   }
 
   &__footer {
diff --git a/app/models/poll.rb b/app/models/poll.rb
index 8f72c7b11..55a8f13a6 100644
--- a/app/models/poll.rb
+++ b/app/models/poll.rb
@@ -54,6 +54,10 @@ class Poll < ApplicationRecord
     account.id == account_id || votes.where(account: account).exists?
   end
 
+  def own_votes(account)
+    votes.where(account: account).pluck(:choice)
+  end
+
   delegate :local?, to: :account
 
   def remote?
diff --git a/app/serializers/rest/poll_serializer.rb b/app/serializers/rest/poll_serializer.rb
index 356c45b83..eb98bb2d2 100644
--- a/app/serializers/rest/poll_serializer.rb
+++ b/app/serializers/rest/poll_serializer.rb
@@ -8,6 +8,7 @@ class REST::PollSerializer < ActiveModel::Serializer
   has_many :emojis, serializer: REST::CustomEmojiSerializer
 
   attribute :voted, if: :current_user?
+  attribute :own_votes, if: :current_user?
 
   def id
     object.id.to_s
@@ -21,6 +22,10 @@ class REST::PollSerializer < ActiveModel::Serializer
     object.voted?(current_user.account)
   end
 
+  def own_votes
+    object.own_votes(current_user.account)
+  end
+
   def current_user?
     !current_user.nil?
   end
diff --git a/app/views/statuses/_poll.html.haml b/app/views/statuses/_poll.html.haml
index ba34890df..d6b36a5d1 100644
--- a/app/views/statuses/_poll.html.haml
+++ b/app/views/statuses/_poll.html.haml
@@ -1,15 +1,19 @@
 - show_results = (user_signed_in? && poll.voted?(current_account)) || poll.expired?
+- own_votes = user_signed_in? ? poll.own_votes(current_account) : []
 
 .poll
   %ul
-    - poll.loaded_options.each do |option|
+    - poll.loaded_options.each_with_index do |option, index|
       %li
         - if show_results
           - percent = poll.votes_count > 0 ? 100 * option.votes_count / poll.votes_count : 0
           %span.poll__chart{ style: "width: #{percent}%" }
 
           %label.poll__text><
-            %span.poll__number= percent.round
+            %span.poll__number><
+              - if own_votes.include?(index)
+                %i.poll__vote__mark.fa.fa-check
+              = percent.round
             = Formatter.instance.format_poll_option(status, option, autoplay: autoplay)
         - else
           %label.poll__text><