Add pending poll vote UI state

Co-authored-by: Yash <yash@signal.org>

ts/components/SpinnerV2.dom.tsx

@@ -10,7 +10,7 @@ export type Props = {
   value?: number | 'indeterminate'; // default: 'indeterminate'
   min?: number; // default: 0
   max?: number; // default: 1
-  variant?: SpinnerVariant;
+  variant?: SpinnerVariant | SpinnerVariantStyles;
   ariaLabel?: string;
   marginRatio?: number;
   size: number;
@@ -85,7 +85,8 @@ export function SpinnerV2({
   );
   const circumference = radius * 2 * Math.PI;
 
-  const { bg, fg } = SpinnerVariants[variant];
+  const { bg, fg } =
+    typeof variant === 'string' ? SpinnerVariants[variant] : variant;
 
   const bgElem = (
     <circle

ts/components/conversation/TimelineMessage.dom.stories.tsx

@@ -1992,6 +1992,7 @@ function createMockPollWithVotes(
     fromId: string;
     optionIndexes: Array<number>;
   }>,
+  pendingVoteDiff?: Map<number, 'PENDING_VOTE' | 'PENDING_UNVOTE'>,
   terminatedAt?: number
 ) {
   const resolvedVotes =
@@ -2041,6 +2042,7 @@ function createMockPollWithVotes(
     totalNumVotes,
     uniqueVoters: uniqueVoterIds.size,
     terminatedAt,
+    pendingVoteDiff,
     votes: votes?.map(v => ({
       fromConversationId: v.fromId,
       optionIndexes: v.optionIndexes,
@@ -2102,6 +2104,34 @@ PollWithVotes.args = {
   status: 'read',
 };
 
+export const PollWithPendingVotes = Template.bind({});
+PollWithPendingVotes.args = {
+  conversationType: 'group',
+  poll: createMockPollWithVotes(
+    'Best day for the team meeting?',
+    ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday'],
+    false,
+    [
+      { fromId: 'alice', optionIndexes: [0] },
+      { fromId: 'user1', optionIndexes: [0] },
+      { fromId: 'user2', optionIndexes: [0] },
+      { fromId: 'bob', optionIndexes: [1] },
+      { fromId: 'user3', optionIndexes: [1] },
+      { fromId: 'charlie', optionIndexes: [2] },
+      { fromId: 'user4', optionIndexes: [2] },
+      { fromId: 'user5', optionIndexes: [2] },
+      { fromId: 'user6', optionIndexes: [2] },
+      { fromId: 'user7', optionIndexes: [2] },
+      { fromId: 'me', optionIndexes: [3] },
+    ],
+    new Map([
+      [3, 'PENDING_UNVOTE'],
+      [1, 'PENDING_VOTE'],
+    ])
+  ),
+  status: 'read',
+};
+
 export const PollTerminated = Template.bind({});
 PollTerminated.args = {
   conversationType: 'group',
@@ -2122,6 +2152,7 @@ PollTerminated.args = {
       { fromId: 'user7', optionIndexes: [1] },
       { fromId: 'user8', optionIndexes: [1] },
     ],
+    undefined,
     Date.now() - 60000
   ),
   status: 'read',

ts/components/conversation/poll-message/PollMessageContents.dom.tsx

@@ -1,15 +1,17 @@
 // Copyright 2025 Signal Messenger, LLC
 // SPDX-License-Identifier: AGPL-3.0-only
 
-import React, { memo, useState } from 'react';
+import React, { memo, useState, useEffect, useRef } from 'react';
 import { Checkbox } from 'radix-ui';
-import { tw } from '../../../axo/tw.dom.js';
+import { type TailwindStyles, tw } from '../../../axo/tw.dom.js';
 import { AxoButton } from '../../../axo/AxoButton.dom.js';
 import { AxoSymbol } from '../../../axo/AxoSymbol.dom.js';
 import type { DirectionType } from '../Message.dom.js';
 import type { PollWithResolvedVotersType } from '../../../state/selectors/message.preload.js';
 import type { LocalizerType } from '../../../types/Util.std.js';
 import { PollVotesModal } from './PollVotesModal.dom.js';
+import { SpinnerV2 } from '../../SpinnerV2.dom.js';
+import { usePrevious } from '../../../hooks/usePrevious.std.js';
 
 function VotedCheckmark({
   isIncoming,
@@ -41,39 +43,78 @@ type PollCheckboxProps = {
   checked: boolean;
   onCheckedChange: (nextChecked: boolean) => void;
   isIncoming: boolean;
+  isPending: boolean;
 };
 
 const PollCheckbox = memo((props: PollCheckboxProps) => {
-  const { isIncoming } = props;
+  const { isIncoming, isPending, checked } = props;
+
+  let bgColor: TailwindStyles;
+  let borderColor: TailwindStyles;
+  let strokeColor: TailwindStyles | undefined;
+  let checkmarkColor: TailwindStyles | undefined;
+
+  if (isPending || !checked) {
+    bgColor = tw('bg-transparent');
+    borderColor = isIncoming
+      ? tw('border-label-placeholder')
+      : tw('border-label-primary-on-color');
+    strokeColor = isIncoming
+      ? tw('stroke-label-placeholder')
+      : tw('stroke-label-primary-on-color');
+    checkmarkColor = isIncoming
+      ? tw('text-label-placeholder')
+      : tw('text-label-primary-on-color');
+  } else {
+    bgColor = isIncoming
+      ? tw('bg-color-fill-primary')
+      : tw('bg-label-primary-on-color');
+    borderColor = isIncoming
+      ? tw('border-color-fill-primary')
+      : tw('border-label-primary-on-color');
+    strokeColor = isIncoming
+      ? tw('stroke-color-fill-primary')
+      : tw('stroke-label-primary-on-color');
+    checkmarkColor = isIncoming
+      ? tw('text-label-primary-on-color')
+      : tw('text-color-fill-primary');
+  }
 
   return (
+    <>
+      {isPending ? (
+        <div className={tw('pointer-events-none absolute')}>
+          <SpinnerV2
+            value="indeterminate"
+            size={24}
+            strokeWidth={1.5}
+            marginRatio={1}
+            variant={{
+              bg: tw('stroke-none'),
+              fg: strokeColor,
+            }}
+          />
+        </div>
+      ) : null}
       <Checkbox.Root
         checked={props.checked}
         onCheckedChange={props.onCheckedChange}
         className={tw(
           'flex size-6 items-center justify-center rounded-full',
-        'border-[1.5px]',
+          isPending ? '' : 'border-[1.5px]',
           'outline-0 outline-border-focused focused:outline-[2.5px]',
           'overflow-hidden',
-        // Unchecked states
-        'data-[state=unchecked]:bg-transparent',
-        isIncoming
-          ? 'data-[state=unchecked]:border-label-placeholder'
-          : 'data-[state=unchecked]:border-label-primary-on-color',
-        // Checked states
-        isIncoming
-          ? 'data-[state=checked]:border-color-fill-primary data-[state=checked]:bg-color-fill-primary'
-          : 'data-[state=checked]:border-label-primary-on-color data-[state=checked]:bg-label-primary-on-color'
+          bgColor,
+          borderColor
         )}
       >
         <Checkbox.Indicator
-        className={tw(
-          isIncoming ? 'text-label-primary-on-color' : 'text-color-fill-primary'
-        )}
+          className={tw(checkmarkColor, 'flex items-center justify-center')}
         >
           <AxoSymbol.Icon symbol="check" size={16} label={null} />
         </Checkbox.Indicator>
       </Checkbox.Root>
+    </>
   );
 });
 
@@ -92,6 +133,7 @@ export type PollMessageContentsProps = {
   canEndPoll?: boolean;
 };
 
+const DELAY_BEFORE_SHOWING_PENDING_ANIMATION = 500;
 export function PollMessageContents({
   poll,
   direction,
@@ -102,9 +144,34 @@ export function PollMessageContents({
   canEndPoll,
 }: PollMessageContentsProps): JSX.Element {
   const [showVotesModal, setShowVotesModal] = useState(false);
+  const [isPending, setIsPending] = useState(false);
+
+  const hasPendingVotes = poll.pendingVoteDiff && poll.pendingVoteDiff.size > 0;
+  const hadPendingVotesInLastRender = usePrevious(hasPendingVotes, undefined);
+
+  const pendingCheckTimer = useRef<NodeJS.Timeout | null>(null);
   const isIncoming = direction === 'incoming';
 
   const { totalNumVotes: totalVotes, uniqueVoters } = poll;
+  // Handle pending vote state changes
+  useEffect(() => {
+    if (!hasPendingVotes) {
+      // Vote completed, clear pending state
+      setIsPending(false);
+      clearTimeout(pendingCheckTimer.current ?? undefined);
+      pendingCheckTimer.current = null;
+    } else if (!hadPendingVotesInLastRender) {
+      pendingCheckTimer.current = setTimeout(() => {
+        setIsPending(true);
+      }, DELAY_BEFORE_SHOWING_PENDING_ANIMATION);
+    }
+  }, [hadPendingVotesInLastRender, hasPendingVotes]);
+
+  useEffect(() => {
+    return () => {
+      clearTimeout(pendingCheckTimer.current ?? undefined);
+    };
+  }, []);
 
   let pollStatusText: string;
   if (poll.terminatedAt) {
@@ -115,10 +182,7 @@ export function PollMessageContents({
     pollStatusText = i18n('icu:PollMessage--SelectOne');
   }
 
-  async function handlePollOptionClicked(
-    index: number,
-    nextChecked: boolean
-  ): Promise<void> {
+  function handlePollOptionClicked(index: number, nextChecked: boolean): void {
     const existingSelections = Array.from(
       poll.votesByOption
         .entries()
@@ -127,6 +191,16 @@ export function PollMessageContents({
     );
     const optionIndexes = new Set<number>(existingSelections);
 
+    if (poll.pendingVoteDiff) {
+      for (const [idx, pendingVoteOrUnvote] of poll.pendingVoteDiff.entries()) {
+        if (pendingVoteOrUnvote === 'PENDING_VOTE') {
+          optionIndexes.add(idx);
+        } else if (pendingVoteOrUnvote === 'PENDING_UNVOTE') {
+          optionIndexes.delete(idx);
+        }
+      }
+    }
+
     if (nextChecked) {
       if (!poll.allowMultiple) {
         // Single-select: clear existing selections first
@@ -174,6 +248,12 @@ export function PollMessageContents({
             uniqueVoters > 0 ? (optionVotes / uniqueVoters) * 100 : 0;
 
           const weVotedForThis = (pollVoteEntries ?? []).some(v => v.isMe);
+          const pendingVoteOrUnvote = poll.pendingVoteDiff?.get(index);
+          const isVotePending = isPending && pendingVoteOrUnvote != null;
+
+          const shouldShowCheckmark = isVotePending
+            ? pendingVoteOrUnvote === 'PENDING_VOTE'
+            : weVotedForThis;
 
           return (
             // eslint-disable-next-line react/no-array-index-key
@@ -183,11 +263,12 @@ export function PollMessageContents({
                 // creating 3px space above text. This aligns checkbox with text baseline.
                 <div className={tw('mt-[3px] self-start')}>
                   <PollCheckbox
-                    checked={weVotedForThis}
+                    checked={shouldShowCheckmark}
                     onCheckedChange={next =>
                       handlePollOptionClicked(index, Boolean(next))
                     }
                     isIncoming={isIncoming}
+                    isPending={isVotePending}
                   />
                 </div>
               )}

ts/state/selectors/message.preload.ts

@@ -506,6 +506,7 @@ export type PollWithResolvedVotersType = PollMessageAttribute & {
   votesByOption: Map<number, ReadonlyArray<PollVoteWithUserType>>;
   totalNumVotes: number;
   uniqueVoters: number;
+  pendingVoteDiff?: Map<number, 'PENDING_VOTE' | 'PENDING_UNVOTE'>;
 };
 
 const getPollForMessage = (
@@ -532,10 +533,53 @@ const getPollForMessage = (
     };
   }
 
+  let successfulVote: MessagePollVoteType | undefined;
+  let pendingVote: MessagePollVoteType | undefined;
+
+  for (const vote of poll.votes) {
+    if (vote.fromConversationId === ourConversationId) {
+      if (
+        vote.sendStateByConversationId &&
+        Object.keys(vote.sendStateByConversationId).length > 0
+      ) {
+        pendingVote = vote;
+      } else {
+        successfulVote = vote;
+      }
+    }
+  }
+
+  // Compute diff between successful and pending vote
+  let pendingVoteDiff:
+    | Map<number, 'PENDING_VOTE' | 'PENDING_UNVOTE'>
+    | undefined;
+  if (pendingVote) {
+    pendingVoteDiff = new Map();
+    const successfulIndexes = new Set(successfulVote?.optionIndexes ?? []);
+    const pendingIndexes = new Set(pendingVote.optionIndexes);
+
+    for (const index of pendingIndexes) {
+      if (!successfulIndexes.has(index)) {
+        pendingVoteDiff.set(index, 'PENDING_VOTE');
+      }
+    }
+
+    for (const index of successfulIndexes) {
+      if (!pendingIndexes.has(index)) {
+        pendingVoteDiff.set(index, 'PENDING_UNVOTE');
+      }
+    }
+  }
+
+  // Filter out pending votes from the votes we'll display
+  const votesToProcess = poll.votes.filter(
+    vote => !vote.sendStateByConversationId
+  );
+
   // Deduplicate votes by sender - keep only the newest vote per sender
   // (highest voteCount, or newest timestamp if voteCount is equal)
   const voteByFrom = new Map<string, MessagePollVoteType>();
-  for (const vote of poll.votes) {
+  for (const vote of votesToProcess) {
     const existingVote = voteByFrom.get(vote.fromConversationId);
     if (
       !existingVote ||
@@ -596,6 +640,7 @@ const getPollForMessage = (
     votesByOption,
     totalNumVotes,
     uniqueVoters: uniqueVoterIds.size,
+    pendingVoteDiff,
   };
 };
 

ts/util/lint/exceptions.json

@@ -2358,5 +2358,13 @@
     "reasonCategory": "usageTrusted",
     "updated": "2025-11-02T17:27:24.705Z",
     "reasonDetail": "Map of refs for poll option inputs to manage focus"
+  },
+  {
+    "rule": "React-useRef",
+    "path": "ts/components/conversation/poll-message/PollMessageContents.dom.tsx",
+    "line": "  const pendingCheckTimer = useRef<NodeJS.Timeout | null>(null);",
+    "reasonCategory": "usageTrusted",
+    "updated": "2025-11-06T20:28:00.760Z",
+    "reasonDetail": "Ref for timer"
   }
 ]