Composer: Disable creating non-anonymous polls in channels (#1760)

src/components/middle/composer/Composer.tsx

@@ -47,6 +47,7 @@ import {
   isUserId,
   isChatAdmin,
   isChatSuperGroup,
+  isChatChannel,
 } from '../../../modules/helpers';
 import { formatMediaDuration, formatVoiceRecordDuration, getDayStartAt } from '../../../util/dateFormat';
 import focusEditableElement from '../../../util/focusEditableElement';
@@ -121,6 +122,7 @@ type StateProps =
     draft?: ApiFormattedText;
     isChatWithBot?: boolean;
     isChatWithSelf?: boolean;
+    isChannel?: boolean;
     isRightColumnShown?: boolean;
     isSelectModeActive?: boolean;
     isForwarding?: boolean;
@@ -185,6 +187,7 @@ const Composer: FC<OwnProps & StateProps> = ({
   connectionState,
   isChatWithBot,
   isChatWithSelf,
+  isChannel,
   isRightColumnShown,
   isSelectModeActive,
   isForwarding,
@@ -868,6 +871,7 @@ const Composer: FC<OwnProps & StateProps> = ({
       />
       <PollModal
         isOpen={Boolean(isPollModalOpen)}
+        shouldBeAnonimous={isChannel}
         onClear={closePollModal}
         onSend={handlePollSend}
       />
@@ -1150,6 +1154,7 @@ export default memo(withGlobal<OwnProps>(
       chat,
       isChatWithBot,
       isChatWithSelf,
+      isChannel: chat ? isChatChannel(chat) : undefined,
       canScheduleUntilOnline: Boolean(
         !isChatWithSelf && !isChatWithBot && chat && chatUser
         && isUserId(chatId) && selectUserStatus(global, chatId)?.wasOnline,

src/components/middle/composer/PollModal.tsx

@@ -19,6 +19,7 @@ import './PollModal.scss';
 
 export type OwnProps = {
   isOpen: boolean;
+  shouldBeAnonimous?: boolean;
   onSend: (pollSummary: ApiNewPoll) => void;
   onClear: () => void;
 };
@@ -29,7 +30,9 @@ const MAX_OPTION_LENGTH = 100;
 const MAX_QUESTION_LENGTH = 255;
 const MAX_SOLUTION_LENGTH = 200;
 
-const PollModal: FC<OwnProps> = ({ isOpen, onSend, onClear }) => {
+const PollModal: FC<OwnProps> = ({
+  isOpen, shouldBeAnonimous, onSend, onClear,
+}) => {
   // eslint-disable-next-line no-null/no-null
   const questionInputRef = useRef<HTMLInputElement>(null);
   // eslint-disable-next-line no-null/no-null
@@ -313,11 +316,13 @@ const PollModal: FC<OwnProps> = ({ isOpen, onSend, onClear }) => {
       <div className="options-divider" />
 
       <div className="quiz-mode">
-        <Checkbox
-          label={lang('PollAnonymous')}
-          checked={isAnonymous}
-          onChange={handleIsAnonymousChange}
-        />
+        {!shouldBeAnonimous && (
+          <Checkbox
+            label={lang('PollAnonymous')}
+            checked={isAnonymous}
+            onChange={handleIsAnonymousChange}
+          />
+        )}
         <Checkbox
           label={lang('PollMultiple')}
           checked={isMultipleAnswers}