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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /layout/style/test/file_transitions_with_disabled_properties.html
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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diff --git a/layout/style/test/file_transitions_with_disabled_properties.html b/layout/style/test/file_transitions_with_disabled_properties.html
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+<!doctype html>
+<head>
+ <meta charset=utf-8>
+ <style>
+ #display {
+ transition: all 0.01s;
+ }
+ </style>
+ <script>
+ var ok = opener.ok.bind(opener);
+ function finish() {
+ var o = opener;
+ self.close();
+ o.SimpleTest.finish();
+ }
+ </script>
+</head>
+<body>
+<div id="display"></div>
+<script>
+'use strict';
+
+/*
+ * This tests for transitions generated on the -webkit-text-fill-color property.
+ * This property has an initial value of 'currentcolor' so by triggering a
+ * transition on the 'color' property we also--at least at the point when
+ * this test was written--trigger a transition on the -webkit-text-fill-color
+ * property (that behavior may change in bug 1260543).
+ *
+ * However, before beginning the test we disable -webkit-text-fill-color by
+ * setting layout.css.prefixes.webkit to false. This code tests that we don't
+ * end up triggering a transition on the (disabled) property in that case.
+ */
+
+var display = document.getElementById('display');
+display.style.color = 'green';
+
+var transitionedProperties =
+ display.getAnimations().map(transition => transition.transitionProperty);
+
+ok(!transitionedProperties.includes('-webkit-text-fill-color'),
+ 'We should not fire transitions for properties disabled by prefs');
+
+finish();
+</script>
+</body>