CSS Animations: WPTs for responsive animations

column-rule-color animations respond to changes in currentColor and inherited column-rule-color that occur while the animation is in progress. column-width animations repond to changes in font-size and inherited column-width that occur while the animation is in progress. Note this test fails in Edge 18 Firefox 67 (partially) Safari 12.1 Bug: 812908 Change-Id: Ic28819a7f4aa3c8c30b11d58ea2600563a182c07 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1689612 Reviewed-by: Robert Flack <[email protected]> Commit-Queue: Eric Willigers <[email protected]> Cr-Commit-Position: refs/heads/master@{#675042}
bocoup · Jul 5, 2019 · 3c5c837 · 3c5c837
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diff --git a/css/css-animations/responsive/column-rule-color-001.html b/css/css-animations/responsive/column-rule-color-001.html
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+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Animations: column-rule-color animations respond to style changes</title>
+<link rel="help" href="https://drafts.csswg.org/css-multicol-1/#crc">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+  .paused {
+    animation-duration: 4s;
+    animation-timing-function: linear;
+    animation-delay: -2s;
+    animation-play-state: paused;
+  }
+  #container {
+    color: rgb(80, 0, 0);
+  }
+  #first {
+    animation-name: first-anim;
+    color: rgb(60, 0, 0);
+  }
+  #second {
+    animation-name: second-anim;
+  }
+  @keyframes first-anim {
+    from { column-rule-color: currentColor; }
+    to { column-rule-color: rgb(0, 60, 0); }
+  }
+  @keyframes second-anim {
+    from { column-rule-color: inherit; }
+    to { column-rule-color: rgb(0, 0, 80); }
+  }
+</style>
+</head>
+<body>
+<div id="container">
+  <div id="first" class="paused"></div>
+  <div id="second" class="paused"></div>
+</div>
+<script>
+'use strict';
+var container = document.getElementById('container');
+
+test(() => {
+  const first = document.getElementById('first');
+  assert_equals(getComputedStyle(first).columnRuleColor, 'rgb(30, 30, 0)');
+  first.style.color = 'rgb(0, 0, 60)';
+  assert_equals(getComputedStyle(first).columnRuleColor, 'rgb(0, 30, 30)');
+}, 'column-rule-color responds to currentColor changes');
+
+test(() => {
+  const container = document.getElementById('container');
+  const second = document.getElementById('second');
+  assert_equals(getComputedStyle(second).columnRuleColor, 'rgb(40, 0, 40)');
+  container.style.columnRuleColor = 'rgb(0, 80, 0)';
+  assert_equals(getComputedStyle(second).columnRuleColor, 'rgb(0, 40, 40)');
+}, 'column-rule-color responds to inherited changes');
+</script>
+</body>
+</html>
diff --git a/css/css-animations/responsive/column-width-001.html b/css/css-animations/responsive/column-width-001.html
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+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>CSS Animations: column-width animations respond to style changes</title>
+<link rel="help" href="https://drafts.csswg.org/css-multicol-1/#cw">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+  .paused {
+    animation-duration: 4s;
+    animation-timing-function: linear;
+    animation-delay: -2s;
+    animation-play-state: paused;
+  }
+  #container {
+    column-width: 40px;
+    font-size: 10px;
+  }
+  #first {
+    animation-name: first-anim;
+  }
+  #second {
+    animation-name: second-anim;
+  }
+  #third {
+    animation-name: third-anim;
+  }
+  @keyframes first-anim {
+    from { column-width: 3em; }
+    to { column-width: 5em; }
+  }
+  @keyframes second-anim {
+    from { column-width: 40px; }
+    to { column-width: calc(40px - 2em); }
+  }
+  @keyframes third-anim {
+    from { column-width: 20px; }
+    to { column-width: inherit; }
+  }
+</style>
+</head>
+<body>
+<div id="container">
+  <div id="first" class="paused"></div>
+  <div id="second" class="paused"></div>
+  <div id="third" class="paused"></div>
+</div>
+<script>
+'use strict';
+var container = document.getElementById('container');
+
+test(() => {
+  const first = document.getElementById('first');
+  assert_equals(getComputedStyle(first).columnWidth, '40px');
+  first.style.fontSize = '20px';
+  assert_equals(getComputedStyle(first).columnWidth, '80px');
+}, 'column-width responds to font-size changes');
+
+test(() => {
+  const second = document.getElementById('second');
+  assert_equals(getComputedStyle(second).columnWidth, '30px');
+  second.style.fontSize = '90px';
+  assert_equals(getComputedStyle(second).columnWidth, '0px');
+}, 'column-width clamps to 0px');
+
+test(() => {
+  const container = document.getElementById('container');
+  const third = document.getElementById('third');
+  assert_equals(getComputedStyle(third).columnWidth, '30px');
+  container.style.columnWidth = 'auto';
+  assert_equals(getComputedStyle(third).columnWidth, 'auto');
+}, 'column-width responds to inherited changes');
+</script>
+</body>
+</html>