javascript - Add CSS change on touch start for mobile devices -


i'm attempting change css of link before app navigates page. i've added ontouchstart event link element speed navigation in app. problem event fires , app navigates before css can change.

what ways provide user feedback before page changes?

additional notes:

  • this spa constructed using angularjs , phonegap build.
  • i discovered using button:active fire after button clicked page navigate before css changes.
  • i believe need tested on touch-screen device see effect.
  • this first question on here please gentle :)

here example code:

html

<a class="button" ontouchstart="goto('#!/stats', 'buttonactive', this);" onclick="goto('#!/stats', 'buttonactive', this);">stats</a>

css

.button {     display: flex;     background-color: #000000;      color: dodgerblue;     font-size: 4vmin;     cursor: pointer;     text-decoration: none;     font-size: 7vmin;     border: 0.75vmin solid dodgerblue;     border-radius: 1vmin;     height: 8vh;     width: 40vmin;     padding: 2vmin;     margin: 5vmin auto;     align-items: center;     justify-content: center; } .buttonactive {     background-color: dodgerblue;     color: white; }

js

function goto (location, addclass, elem) {     elem.classname += addclass;     window.location.href = location; }

you add slight delay goto function's window.location.href call. give css time update before new file requested. might this:

function goto (location, addclass, elem) {   elem.classname += addclass;   settimeout(function(){      window.location.href = location;   }, 250); }

that make 250-millisecond delay...likely enough time allow css update , viewers recognize change before new file request initiated.


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