From 2993e24aee83f8ececbbefef6bbe5886d565a8db Mon Sep 17 00:00:00 2001
From: Brad Johnson <fullcolorcoder@gmail.com>
Date: Tue, 4 Jun 2024 05:34:29 -0500
Subject: [PATCH] MWPW-147770 Mobile Touch (#2356)

MWPW-147770 added mobile touch/swipe handling
---
 libs/blocks/quiz-entry/quizoption.js | 67 +++++++++++++++++++++++++---
 1 file changed, 60 insertions(+), 7 deletions(-)

diff --git a/libs/blocks/quiz-entry/quizoption.js b/libs/blocks/quiz-entry/quizoption.js
index d6a63de97e..4681a86e54 100644
--- a/libs/blocks/quiz-entry/quizoption.js
+++ b/libs/blocks/quiz-entry/quizoption.js
@@ -1,4 +1,5 @@
 import { html, useState, useEffect } from '../../deps/htm-preact.js';
+import { getSwipeDistance, getSwipeDirection } from '../carousel/carousel.js';
 
 export const OptionCard = ({
   text, title, image, icon, iconTablet, iconDesktop, options,
@@ -44,17 +45,13 @@ export const GetQuizOption = ({
 }) => {
   const [index, setIndex] = useState(0);
   const [visibleCount, setVisibleCount] = useState(6);
+  const [slideWidth, setSlideWidth] = useState(0);
+
   setVisibleCount(window.innerWidth >= 600 ? 6 : 3);
 
   const isRTL = document.documentElement.getAttribute('dir') === 'rtl';
 
-  useEffect(() => {
-    const handleResize = () => setVisibleCount(window.innerWidth >= 600 ? 6 : 3);
-    window.addEventListener('resize', handleResize);
-    return () => window.removeEventListener('resize', handleResize);
-  }, []);
-
-  const next = () => {
+  const next = async () => {
     if (index + visibleCount < options.data.length) {
       setIndex(index + 1);
     }
@@ -66,6 +63,62 @@ export const GetQuizOption = ({
     }
   };
 
+  useEffect(() => {
+    const slide = document.querySelector('.quiz-option');
+    if (slide) {
+      setSlideWidth(slide.offsetWidth);
+    }
+  }, [options, slideWidth, setSlideWidth]);
+
+  useEffect(() => {
+    const handleResize = () => setVisibleCount(window.innerWidth >= 600 ? 6 : 3);
+    const el = document.querySelector('.quiz-options-container');
+
+    window.addEventListener('resize', handleResize);
+
+    const swipe = { xMin: 50 };
+
+    const handleTouchStart = (event) => {
+      const touch = event.touches[0];
+      swipe.xStart = touch.screenX;
+    };
+
+    const handleTouchMove = (event) => {
+      const touch = event.touches[0];
+      swipe.xEnd = touch.screenX;
+    };
+
+    const handleTouchEnd = () => {
+      const swipeDistance = {};
+      swipeDistance.xDistance = getSwipeDistance(swipe.xStart, swipe.xEnd);
+      const direction = getSwipeDirection(swipe, swipeDistance);
+
+      swipe.xStart = 0;
+      swipe.xEnd = 0;
+
+      if (swipeDistance.xDistance > swipe.xMin) {
+        if (direction === 'left') {
+          next();
+        } else if (direction === 'right') {
+          prev();
+        }
+      }
+    };
+
+    el.addEventListener('touchstart', handleTouchStart);
+    el.addEventListener('touchmove', handleTouchMove);
+    el.addEventListener('touchend', handleTouchEnd);
+
+    return () => {
+      window.removeEventListener('resize', handleResize);
+
+      el.removeEventListener('touchstart', handleTouchStart);
+      el.removeEventListener('touchmove', handleTouchMove);
+      el.removeEventListener('touchend', handleTouchEnd);
+    };
+  // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [index, visibleCount, options.data.length]);
+
   const handleKey = (e) => {
     if (e.key === 'ArrowRight') {
       e.preventDefault();