Blitz - WPT: position-sticky-rendering.html

wpt / css / css-position / sticky / position-sticky-rendering.html

/css/css-position/sticky/position-sticky-rendering.html

<!DOCTYPE html>
<title>position:sticky elements should be rendered at their sticky offset</title>
<link rel="match" href="position-sticky-rendering-ref.html" />
<link rel="help" href="https://www.w3.org/TR/css-position-3/#sticky-pos" />
<meta name="assert" content="This test checks that position:sticky elements are rendered correctly" />

<script src="../resources/ref-rectangle.js"></script>

<style>
.group {
  display: inline-block;
  position: relative;
  width: 150px;
  height: 250px;
}

.inlineGroup {
  display: inline-block;
  position: relative;
  width: 250px;
  height: 150px;
}

.scroller {
  position: relative;
  width: 100px;
  height: 200px;
  overflow-x: hidden;
  overflow-y: auto;
}

.inlineGroup .scroller {
  position: relative;
  width: 200px;
  height: 100px;
  overflow-x: auto;
  overflow-y: hidden;
}

.contents {
  height: 500px;
}

.inlineGroup .contents {
  height: 100%;
  width: 500px;
}

.prepadding {
  height: 100px;
}

.inlineGroup .prepadding {
  display: inline-block;
  height: 100%;
  width: 100px;
}

.container {
  height: 200px;
}

.inlineGroup .container {
  display: inline-block;
  height: 100%;
  width: 200px;
}

.filler {
  height: 100px;
}

.inlineGroup .filler {
  display: inline-block;
  height: 100%;
  width: 100px;
}

.indicator {
  background-color: red;
  position: absolute;
}

.sticky {
  background-color: green;
  position: sticky;
}

.box {
  width: 100%;
  height: 100px;
}

.inlineGroup .box {
  display: inline-block;
  height: 100%;
  width: 100px;
}
</style>

<script>
window.addEventListener('load', function() {
  document.getElementById('scroller1').scrollTop = 125;
  document.getElementById('scroller2').scrollTop = 50;
  document.getElementById('scroller3').scrollLeft = 125;
  document.getElementById('scroller4').scrollLeft = 75;
  createIndicatorForStickyElements(document.querySelectorAll('.sticky'));
});
</script>

<div>You should see four green squares below. No red or blue should be visible.</div>

<div class="group">
  <div id="scroller1" class="scroller">
    <div class="indicator box" style="top: 175px;"></div>
    <div class="contents">
      <div class="prepadding"></div>
      <div class="container">
        <div style="top: 50px;" class="sticky box"></div>
      </div>
    </div>
  </div>
</div>

<div class="group">
  <div id="scroller2" class="scroller">
    <div class="indicator box" style="top: 125px;"></div>
    <div class="contents">
      <div class="prepadding"></div>
      <div class="container">
        <div class="filler"></div>
        <div style="bottom: 25px;" class="sticky box"></div>
      </div>
    </div>
  </div>
</div>

<!-- Force break to make sure we are within 800px wide. -->
<div></div>

<div class="inlineGroup">
  <div id="scroller3" class="scroller">
    <div class="indicator box" style="left: 175px;"></div>
    <div class="contents">
      <!-- As these elements are inline, they are whitespace sensitive. -->
      <div class="prepadding"></div><div class="container"><div style="left: 50px;" class="sticky box"></div></div>
    </div>
  </div>
</div>

<div class="inlineGroup">
  <div id="scroller4" class="scroller">
    <div class="indicator box" style="left: 150px;"></div>
    <div class="contents">
      <!-- As these elements are inline, they are whitespace sensitive. -->
      <div class="prepadding"></div><div class="container"><div class="filler"></div><div style="right: 25px;" class="sticky box"></div></div>
    </div>
  </div>
</div>

/css/css-position/sticky/position-sticky-rendering-ref.html

<!DOCTYPE html>
<title>Reference for position:sticky elements should be rendered at their sticky offset</title>

<style>
.group {
  display: inline-block;
  position: relative;
  width: 150px;
  height: 250px;
}

.inlineGroup {
  display: inline-block;
  position: relative;
  width: 250px;
  height: 150px;
}

.scroller {
  position: relative;
  width: 100px;
  height: 200px;
  overflow-x: hidden;
  overflow-y: auto;
}

.inlineGroup .scroller {
  position: relative;
  width: 200px;
  height: 100px;
  overflow-x: auto;
  overflow-y: hidden;
}

.contents {
  height: 500px;
}

.inlineGroup .contents {
  height: 100%;
  width: 500px;
}

.indicator {
  background-color: green;
  position: absolute;
}

.box {
  width: 100%;
  height: 100px;
}

.inlineGroup .box {
  height: 100%;
  width: 100px;
}
</style>

<script>
window.addEventListener('load', function() {
  document.getElementById('scroller1').scrollTop = 125;
  document.getElementById('scroller2').scrollTop = 50;
  document.getElementById('scroller3').scrollLeft = 125;
  document.getElementById('scroller4').scrollLeft = 75;
});
</script>

<div>You should see four green squares below. No red or blue should be visible.</div>

<div class="group">
  <div id="scroller1" class="scroller">
    <div class="contents">
      <div class="indicator box" style="top: 175px;"></div>
    </div>
  </div>
</div>

<div class="group">
  <div id="scroller2" class="scroller">
    <div class="contents">
      <div class="indicator box" style="top: 125px;"></div>
    </div>
  </div>
</div>

<!-- Force break to make sure we are within 800px wide. -->
<div></div>

<div class="inlineGroup">
  <div id="scroller3" class="scroller">
    <div class="contents">
      <div class="indicator box" style="left: 175px;"></div>
    </div>
  </div>
</div>

<div class="inlineGroup">
  <div id="scroller4" class="scroller">
    <div class="contents">
      <div class="indicator box" style="left: 150px;"></div>
    </div>
  </div>
</div>