Fix crash when edit a message after coming back from a child report

src/components/Reactions/ReportActionItemReactions.js

@@ -11,7 +11,7 @@ import * as Report from '../../libs/actions/Report';
 import Tooltip from '../Tooltip';
 import ReactionTooltipContent from './ReactionTooltipContent';
 import * as EmojiUtils from '../../libs/EmojiUtils';
-import ReactionListRefContext from '../../pages/home/report/ReactionList/ReactionListRefContext';
+import ReportScreenContext from '../../pages/home/ReportScreenContext';
 
 const propTypes = {
     /**
@@ -47,7 +47,7 @@ const defaultProps = {
 };
 
 function ReportActionItemReactions(props) {
-    const reactionListRef = useContext(ReactionListRefContext);
+    const {reactionListRef} = useContext(ReportScreenContext);
     const popoverReactionListAnchor = useRef(null);
     const reactionsWithCount = _.filter(props.reactions, (reaction) => reaction.users.length > 0);
 

src/hooks/useReportScrollManager/index.js

@@ -0,0 +1,36 @@
+import {useContext} from 'react';
+import ReportScreenContext from '../../pages/home/ReportScreenContext';
+
+function useReportScrollManager() {
+    const {flatListRef} = useContext(ReportScreenContext);
+
+    /**
+     * Scroll to the provided index. On non-native implementations we do not want to scroll when we are scrolling because
+     * we are editing a comment.
+     *
+     * @param {Object} index
+     * @param {Boolean} isEditing
+     */
+    const scrollToIndex = (index, isEditing) => {
+        if (!flatListRef.current || isEditing) {
+            return;
+        }
+
+        flatListRef.current.scrollToIndex(index);
+    };
+
+    /**
+     * Scroll to the bottom of the flatlist.
+     */
+    const scrollToBottom = () => {
+        if (!flatListRef.current) {
+            return;
+        }
+
+        flatListRef.current.scrollToOffset({animated: false, offset: 0});
+    };
+
+    return {ref: flatListRef, scrollToIndex, scrollToBottom};
+}
+
+export default useReportScrollManager;

src/hooks/useReportScrollManager/index.native.js

@@ -0,0 +1,34 @@
+import {useContext} from 'react';
+import ReportScreenContext from '../../pages/home/ReportScreenContext';
+
+function useReportScrollManager() {
+    const {flatListRef} = useContext(ReportScreenContext);
+
+    /**
+     * Scroll to the provided index.
+     *
+     * @param {Object} index
+     */
+    const scrollToIndex = (index) => {
+        if (!flatListRef.current) {
+            return;
+        }
+
+        flatListRef.current.scrollToIndex(index);
+    };
+
+    /**
+     * Scroll to the bottom of the flatlist.
+     */
+    const scrollToBottom = () => {
+        if (!flatListRef.current) {
+            return;
+        }
+
+        flatListRef.current.scrollToOffset({animated: false, offset: 0});
+    };
+
+    return {ref: flatListRef, scrollToIndex, scrollToBottom};
+}
+
+export default useReportScrollManager;

src/libs/ReportScrollManager/index.js

@@ -1,34 +1,30 @@
-import React from 'react';
-
-// This ref is created using React.createRef here because this function is used by a component that doesn't have access
-// to the original ref.
-const flatListRef = React.createRef();
-
 /**
  * Scroll to the provided index. On non-native implementations we do not want to scroll when we are scrolling because
  * we are editing a comment.
  *
+ * @param {Object} ref
  * @param {Object} index
  * @param {Boolean} isEditing
  */
-function scrollToIndex(index, isEditing) {
-    if (isEditing) {
+function scrollToIndex(ref, index, isEditing) {
+    if (!ref.current || isEditing) {
         return;
     }
 
-    flatListRef.current.scrollToIndex(index);
+    ref.current.scrollToIndex(index);
 }
 
 /**
  * Scroll to the bottom of the flatlist.
  *
+ * @param {Object} ref
  */
-function scrollToBottom() {
-    if (!flatListRef.current) {
+function scrollToBottom(ref) {
+    if (!ref.current) {
         return;
     }
 
-    flatListRef.current.scrollToOffset({animated: false, offset: 0});
+    ref.current.scrollToOffset({animated: false, offset: 0});
 }
 
-export {flatListRef, scrollToIndex, scrollToBottom};
+export {scrollToIndex, scrollToBottom};

src/libs/ReportScrollManager/index.native.js

@@ -1,28 +1,28 @@
-import React from 'react';
-
-// This ref is created using React.createRef here because this function is used by a component that doesn't have access
-// to the original ref.
-const flatListRef = React.createRef();
-
 /**
  * Scroll to the provided index.
  *
+ * @param {Object} ref
  * @param {Object} index
  */
-function scrollToIndex(index) {
-    flatListRef.current.scrollToIndex(index);
+function scrollToIndex(ref, index) {
+    if (!ref.current) {
+        return;
+    }
+
+    ref.current.scrollToIndex(index);
 }
 
 /**
  * Scroll to the bottom of the flatlist.
  *
+ * @param {Object} ref
  */
-function scrollToBottom() {
-    if (!flatListRef.current) {
+function scrollToBottom(ref) {
+    if (!ref.current) {
         return;
     }
 
-    flatListRef.current.scrollToOffset({animated: false, offset: 0});
+    ref.current.scrollToOffset({animated: false, offset: 0});
 }
 
-export {flatListRef, scrollToIndex, scrollToBottom};
+export {scrollToIndex, scrollToBottom};

src/libs/actions/IOU.js

@@ -17,6 +17,7 @@ import DateUtils from '../DateUtils';
 import TransactionUtils from '../TransactionUtils';
 import * as ErrorUtils from '../ErrorUtils';
 import * as UserUtils from '../UserUtils';
+import * as Report from './Report';
 
 const chatReports = {};
 const iouReports = {};
@@ -427,6 +428,7 @@ function requestMoney(report, amount, currency, payeeEmail, payeeAccountID, part
     );
     resetMoneyRequestInfo();
     Navigation.dismissModal(chatReport.reportID);
+    Report.notifyNewAction(chatReport.reportID, payeeAccountID);
 }
 
 /**
@@ -733,6 +735,7 @@ function splitBill(participants, currentUserLogin, currentUserAccountID, amount,
 
     resetMoneyRequestInfo();
     Navigation.dismissModal();
+    Report.notifyNewAction(groupData.chatReportID, currentUserAccountID);
 }
 
 /**
@@ -763,6 +766,7 @@ function splitBillAndOpenReport(participants, currentUserLogin, currentUserAccou
 
     resetMoneyRequestInfo();
     Navigation.dismissModal(groupData.chatReportID);
+    Report.notifyNewAction(groupData.chatReportID, currentUserAccountID);
 }
 
 /**
@@ -1227,6 +1231,7 @@ function sendMoneyElsewhere(report, amount, currency, comment, managerID, recipi
 
     resetMoneyRequestInfo();
     Navigation.dismissModal(params.chatReportID);
+    Report.notifyNewAction(params.chatReportID, managerID);
 }
 
 /**
@@ -1244,6 +1249,7 @@ function sendMoneyWithWallet(report, amount, currency, comment, managerID, recip
 
     resetMoneyRequestInfo();
     Navigation.dismissModal(params.chatReportID);
+    Report.notifyNewAction(params.chatReportID, managerID);
 }
 
 /**
@@ -1261,6 +1267,7 @@ function sendMoneyViaPaypal(report, amount, currency, comment, managerID, recipi
 
     resetMoneyRequestInfo();
     Navigation.dismissModal(params.chatReportID);
+    Report.notifyNewAction(params.chatReportID, managerID);
 
     asyncOpenURL(Promise.resolve(), buildPayPalPaymentUrl(amount, recipient.payPalMeAddress, currency));
 }

src/libs/actions/Report.js

@@ -193,6 +193,21 @@ function subscribeToNewActionEvent(reportID, callback) {
     };
 }
 
+/**
+ * Notify the ReportActionsView that a new comment has arrived
+ *
+ * @param {String} reportID
+ * @param {Number} accountID
+ * @param {String} reportActionID
+ */
+function notifyNewAction(reportID, accountID, reportActionID) {
+    if (reportID !== newActionSubscriber.reportID) {
+        return;
+    }
+    const isFromCurrentUser = accountID === currentUserAccountID;
+    newActionSubscriber.callback(isFromCurrentUser, reportActionID);
+}
+
 /**
  * Add up to two report actions to a report. This method can be called for the following situations:
  *
@@ -306,12 +321,7 @@ function addActions(reportID, text = '', file) {
         successData,
         failureData,
     });
-
-    // Notify the ReportActionsView that a new comment has arrived
-    if (reportID === newActionSubscriber.reportID) {
-        const isFromCurrentUser = lastAction.actorAccountID === currentUserAccountID;
-        newActionSubscriber.callback(isFromCurrentUser, lastAction.reportActionID);
-    }
+    notifyNewAction(reportID, lastAction.actorAccountID, lastAction.reportActionID);
 }
 
 /**
@@ -1436,12 +1446,7 @@ function showReportActionNotification(reportID, action) {
             Navigation.navigate(ROUTES.getReportRoute(reportID));
         },
     });
-
-    // Notify the ReportActionsView that a new comment has arrived
-    if (reportID === newActionSubscriber.reportID) {
-        const isFromCurrentUser = action.actorAccountID === currentUserAccountID;
-        newActionSubscriber.callback(isFromCurrentUser, action.reportActionID);
-    }
+    notifyNewAction(reportID, action.actorAccountID, action.reportActionID);
 }
 
 /**
@@ -1830,6 +1835,7 @@ export {
     clearPolicyRoomNameErrors,
     clearIOUError,
     subscribeToNewActionEvent,
+    notifyNewAction,
     showReportActionNotification,
     addEmojiReaction,
     removeEmojiReaction,