khronosschoty
/
palemoon-dev


			
				
					
						
						
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							<!DOCTYPE HTML>
<html class="reftest-wait">
<head>
    <meta charset="utf-8">
    <title>Testcase for bug 1010538 - Dynamically change scroll-behavior</title>
    <style type="text/css">

        html,body {
            color: black;
            background-color: white;
            font-size: 16px;
            padding: 0;
            margin: 0;
        }

        .a_box {
            position: relative;
            left: 0px;
            top: 0px;
            width: 20px;
            height: 20px;
            background: blue;
        }

        .another_box {
            position: relative;
            left: 2000px;
            top: 2000px;
            width: 20px;
            height: 20px;
            background: green;
        }

        .scroll_box {
            width: 150px;
            height: 150px;
            overflow: scroll;
        }

        #scroll_2 {
            scroll-behavior: auto;
        }

        #scroll_3 {
            scroll-behavior: smooth;
        }

    </style>
</head>
<body>
  <div id="scroll_1" class="scroll_box">
    <div id="box1a" class="a_box"></div>
    <div id="box1b" class="another_box"></div>
  </div>
  <div id="scroll_2" class="scroll_box">
    <div id="box2a" class="a_box"></div>
    <div id="box2b" class="another_box"></div>
  </div>
  <div id="scroll_3" class="scroll_box">
    <div id="box3a" class="a_box"></div>
    <div id="box3b" class="another_box"></div>
  </div>
<script>
  function doTest() {
    if (document.location.search != '?ref') {
      // Expect smooth scroll:
      document.getElementById("scroll_1").style.scrollBehavior = "smooth";
      document.getElementById("scroll_1").scrollTo({left: 0, top: 0});
      document.getElementById("scroll_2").style.scrollBehavior = "smooth";
      document.getElementById("scroll_2").scrollTo({left: 0, top: 0});

      // Expect instant scroll:
      document.getElementById("scroll_3").style.scrollBehavior = "auto";
      document.getElementById("scroll_3").scrollTo({left: 0, top: 0});
    } else {
      document.getElementById("scroll_1").scrollTo({left: 0, top: 0, behavior: "smooth"});
      document.getElementById("scroll_2").scrollTo({left: 0, top: 0, behavior: "smooth"});
      document.getElementById("scroll_3").scrollTo({left: 0, top: 0, behavior: "instant"});
    }

    // Interrupt any smooth scrolling
    for (var i=1; i <= 3; i++) {
      document.getElementById("scroll_" + i).scrollTo();
    }

    document.documentElement.removeAttribute("class");
  }

  for (var i=1; i <= 3; i++) {
    document.getElementById("box" + i + "b")
      .scrollIntoView({block: "start", behavior: "instant"});
  }

  window.addEventListener("MozReftestInvalidate", doTest, false);
</script>
</body>
</html>