PDF Embed API: prevent skipping pages on swipe

The following code seems to do the trick:

<html lang="en">

<head>

<meta http-equiv="X-UA-Compatible" content="IE=Edge" />

<meta charset="utf-8" />

<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=2.0, user-scalable=yes" />

</head>

<body >

<!--Using Adobe Embed PDF -- begin -->

<div id="adobe-dc-view" ></div> 

<script src="https://documentcloud.adobe.com/view-sdk/main.js"></script>

<script>

var currPage=1;

var adobeDCView=null;

var pagePromise=null;

document.addEventListener("adobe_dc_view_sdk.ready", function(){ 

adobeDCView = new AdobeDC.View({clientId: "d0be3b95d4a540f33f2e381e06bb3eb", divId: "adobe-dc-view"});

pagePromise = adobeDCView.previewFile({

content:{location: {url: "./test.pdf"}},

metaData:{fileName: "Test.pdf"}

}, {embedMode: "SIZED_CONTAINER", showDownloadPDF: false, showPrintPDF: false, 

showFullScreen: false});

pagePromise.then(adobeViewer => {

   adobeViewer.getAPIs().then(apis => {

     apis.getPDFMetadata()

     .then(result => {

       totalPages = result.numPages;

       listenForReads(currPage);

     })

     .catch(error => console.log(error));

   });

});

});

function listenForReads() {

const eventOptions = {

   listenOn: [ AdobeDC.View.Enum.PDFAnalyticsEvents.PAGE_VIEW ],

   enablePDFAnalytics: true

}

   adobeDCView.registerCallback(

   AdobeDC.View.Enum.CallbackType.EVENT_LISTENER,

   function(event) {

     let page = event.data.pageNumber;

if (Math.abs(page - currPage) <= 1) {

currPage=page; return;}

if (page < currPage) currPage--;

else currPage++;

adobeDCView = new AdobeDC.View({clientId: "d0be3b95d4a40f383f2e381e06bb3eb", divId: "adobe-dc-view"});

let resultPromise = adobeDCView.previewFile(

       {

content:{location: {url: "./test.pdf"}},

metaData:{fileName: "Test.pdf"}

   },

   {embedMode: "SIZED_CONTAINER", showDownloadPDF: false, showPrintPDF: false, 

showFullScreen: false}

);

  resultPromise.then(adobeViewer => {

        adobeViewer.getAPIs().then(apis => {

                apis.gotoLocation(currPage,0, 0)

                        .then(result => {

listenForReads();

})

                        .catch(error => console.log(error));

         });

           });

}, eventOptions);

  return currPage;

  }

</script>

<!--Using Adobe Embed PDF -- end -->

</body>

<html lang="en">
<head>
<meta http-equiv="X-UA-Compatible" content="IE=Edge" />
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=2.0, user-scalable=yes" />
</head>
<body >
<!--Using Adobe Embed PDF -- begin -->
<div id="adobe-dc-view" ></div>
<script src="https://documentcloud.adobe.com/view-sdk/main.js"></script>

<script>
var currPage=1;
var adobeDCView=null;
var pagePromise=null;
document.addEventListener("adobe_dc_view_sdk.ready", function(){
adobeDCView = new AdobeDC.View({clientId: "d0be3b95d4a540f33f2e381e06bb3eb", divId: "adobe-dc-view"});
pagePromise = adobeDCView.previewFile({
content:{location: {url: "./test.pdf"}},
metaData:{fileName: "Test.pdf"}
}, {embedMode: "SIZED_CONTAINER", showDownloadPDF: false, showPrintPDF: false,
showFullScreen: false});

pagePromise.then(adobeViewer => {
adobeViewer.getAPIs().then(apis => {
apis.getPDFMetadata()
.then(result => {
listenForReads(currPage);
})
.catch(error => console.log(error));
});
});

});
function listenForReads() {

const eventOptions = {
listenOn: [ AdobeDC.View.Enum.PDFAnalyticsEvents.PAGE_VIEW ],
enablePDFAnalytics: true
}

adobeDCView.registerCallback(
AdobeDC.View.Enum.CallbackType.EVENT_LISTENER,
function(event) {

let page = event.data.pageNumber;

if (Math.abs(page - currPage) <= 1) {
currPage=page; return;}
if (page < currPage) currPage--;
else currPage++;

adobeDCView = new AdobeDC.View({clientId: "d0be3b95d4a40f383f2e381e06bb3eb", divId: "adobe-dc-view"});

let resultPromise = adobeDCView.previewFile(
{
content:{location: {url: "./test.pdf"}},
metaData:{fileName: "Test.pdf"}
},
{embedMode: "SIZED_CONTAINER", showDownloadPDF: false, showPrintPDF: false,
showFullScreen: false}
);

resultPromise.then(adobeViewer => {

adobeViewer.getAPIs().then(apis => {
apis.gotoLocation(currPage,0, 0)
.then(result => {
listenForReads();
})
.catch(error => console.log(error));
});
});
}, eventOptions);

return currPage;
}
</script>

<!--Using Adobe Embed PDF -- end -->
</body>