From fede11b59f8812af342956a121e374db3315e534 Mon Sep 17 00:00:00 2001
From: Sean <sean.f.t.engelhardt@gmail.com>
Date: Wed, 6 May 2020 14:32:46 +0200
Subject: [PATCH] Fix poll results under iOS

Fixes an issue on iOS devices regarding click-bindungs in structural
loops. iOS devices did not respond to touch inputs in the given view
---
 .../motion-poll/motion-poll/motion-poll.component.html     | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/client/src/app/site/motions/modules/motion-poll/motion-poll/motion-poll.component.html b/client/src/app/site/motions/modules/motion-poll/motion-poll/motion-poll.component.html
index b7b973e47..75ab8b8ad 100644
--- a/client/src/app/site/motions/modules/motion-poll/motion-poll/motion-poll.component.html
+++ b/client/src/app/site/motions/modules/motion-poll/motion-poll/motion-poll.component.html
@@ -77,7 +77,12 @@
     <!-- Result Chart and legend -->
     <div class="poll-chart-wrapper" *osPerms="'motions.can_manage_polls'; or: poll.isPublished">
         <div class="vote-legend" [routerLink]="pollLink">
-            <div *ngFor="let row of reducedPollTableData" [class]="row.votingOption">
+
+            <!-- any (click)-binding in an *ngFor-loop of dynamic length will break the view on iOS.
+                Therefore, we have to provide the trackBy-function here.
+                I suppose there would be debug output, but i-devices are not giving any.
+                The error-handling-service (PR #5131) might be helpful here. Nothing easy to find. -->
+            <div *ngFor="let row of reducedPollTableData; trackBy: trackByIndex" [class]="row.votingOption">
                 <os-icon-container [icon]="row.value[0].icon" size="large">
                     {{ row.value[0].amount | parsePollNumber }}
                     <span *ngIf="row.value[0].showPercent">