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+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1145910
+-->
+<head>
+ <title>Test for Bug 1145910</title>
+ <script src="/tests/SimpleTest/SimpleTest.js"></script>
+ <script src="/tests/SimpleTest/EventUtils.js"></script>
+ <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+
+<script type="application/javascript">
+
+/** Test for Bug 1145910 **/
+
+function runTests() {
+
+ var iframe = document.createElement('iframe');
+ document.body.appendChild(iframe);
+ iframe.contentDocument.body.innerHTML =
+ '<style> div:active { color: rgb(0, 255, 0); } </style> <div id="host">Foo</div>';
+
+ var host = iframe.contentDocument.getElementById("host");
+ var shadow = host.attachShadow({mode: 'open'});
+ shadow.innerHTML = '<style>div:active { color: rgb(0, 255, 0); }</style><div id="inner">Bar</div>';
+ var inner = shadow.getElementById("inner");
+ var iframeWin = iframe.contentWindow;
+
+ is(iframeWin.getComputedStyle(host).color, "rgb(0, 0, 0)", "The host should not be active");
+ is(iframeWin.getComputedStyle(inner).color, "rgb(0, 0, 0)", "The div inside the shadow root should not be active.");
+
+ synthesizeMouseAtCenter(host, { type: "mousedown" }, iframeWin);
+
+ is(iframeWin.getComputedStyle(inner).color, "rgb(0, 255, 0)", "Div inside shadow root should be active.");
+ is(iframeWin.getComputedStyle(host).color, "rgb(0, 255, 0)", "Host should be active when the inner div is made active.");
+
+ synthesizeMouseAtCenter(host, { type: "mouseup" }, iframeWin);
+
+ is(iframeWin.getComputedStyle(inner).color, "rgb(0, 0, 0)", "Div inside shadow root should no longer be active.");
+ is(iframeWin.getComputedStyle(host).color, "rgb(0, 0, 0)", "Host should no longer be active.");
+
+ SimpleTest.finish();
+};
+
+SimpleTest.waitForExplicitFinish();
+window.onload = () => {
+ SimpleTest.waitForFocus(runTests);
+};
+
+</script>
+</body>
+</html>