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<html>
<head>
<title>Shadow DOM Test: A_04_08_01</title>
<link rel="author" title="Sergey G. Grekhov" href="mailto:sgrekhov@unipro.ru">
<link rel="help" href="http://www.w3.org/TR/2013/WD-shadow-dom-20130514/#nested-shadow-subtrees">
<meta name="assert" content="Nested Shadow Subtrees:Any element in a shadow tree can be a shadow host, thus producing nested shadow trees">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../../testcommon.js"></script>
<link rel="stylesheet" href="/resources/testharness.css">
</head>
<body>
<div id="log"></div>
<script>
var A_04_08_01_T1 = async_test('A_04_08_01_T01');

A_04_08_01_T1.step(function () {
    var iframe = document.createElement('iframe');
    iframe.src = '../../resources/bobs_page.html';
    document.body.appendChild(iframe);

    iframe.onload = A_04_08_01_T1.step_func(function () {
        try {
            var d = iframe.contentDocument;
            var ul = d.querySelector('ul.stories');

            //make a shadow subtree
            var s1 = ul.createShadowRoot();
            var subdiv1 = d.createElement('div');
            subdiv1.innerHTML = '<ul><content select=".shadow"></content></ul>' +
            	'<div id="host_div">' +
            		'<span id="sh_span">This span should be visible</span>' +
            		'<ul id="host">' +
	            		'<li id="sh_li1">Shadow li 1</li>' +
	            		'<li id="sh_li2">Shadow li 2</li>' +
	            		'<li id="sh_li3" class="shadow2">Shadow li 3</li>' +
	            		'<li id="sh_li4">Shadow li 4</li>' +
	            		'<li id="sh_li5">Shadow li 5</li>' +
            		'</ul>' +
            	'</div>';
            s1.appendChild(subdiv1);

            //make nested shadow subtree
            var sh_ul = s1.querySelector('#host');
            var s2 = sh_ul.createShadowRoot();
            var subdiv2 = d.createElement('div');
            subdiv2.innerHTML = '<ul><content select=".shadow2"></content></ul>';
            s2.appendChild(subdiv2);

            //The order of DOM elements should be the following:
            //li4, li3 and sh_li3 visible. Other elements invisible
            assert_true(d.querySelector('#li3').offsetTop > 0,
            	'Point 1: Shadow tree should take part in the distribution');
            assert_true(d.querySelector('#li6').offsetTop > d.querySelector('#li3').offsetTop,
            	'Point 2: Shadow tree should take part in the distribution');
            assert_true(s1.querySelector('#sh_li3').offsetTop > 0,
            	'Nested shadow subtree should take part in the distribution');

            assert_equals(d.querySelector('#li1').offsetTop, 0,
                'Point 3: Elements that don\'t mach insertion point criteria participate in distribution');
            assert_equals(d.querySelector('#li2').offsetTop, 0,
                'Point 4: Elements that don\'t mach insertion point criteria participate in distribution');
            assert_equals(d.querySelector('#li4').offsetTop, 0,
                'Point 5: Elements that don\'t mach insertion point criteria participate in distribution');
            assert_equals(d.querySelector('#li5').offsetTop, 0,
            	'Point 6: Elements that don\'t mach insertion point criteria participate in distribution');

            assert_equals(s1.querySelector('#sh_li1').offsetTop, 0,
            	'Point 7: Elements of the nested shadow subtree that don\'t mach insertion point criteria participate in distribution');
            assert_equals(s1.querySelector('#sh_li2').offsetTop, 0,
            	'Point 8: Elements of the nested shadow subtree that don\'t mach insertion point criteria participate in distribution');
            assert_equals(s1.querySelector('#sh_li4').offsetTop, 0,
        		'Point 9: Elements of the nested shadow subtree that don\'t mach insertion point criteria participate in distribution');
            assert_equals(s1.querySelector('#sh_li5').offsetTop, 0,
        		'Point 10: Elements of the nested shadow subtree that don\'t mach insertion point criteria participate in distribution');

            assert_true(s1.querySelector('#sh_span').offsetTop > 0,
            	'Shadow subtree elements that are not shadow host should take part in the distribution');


        } finally {
        	iframe.parentNode.removeChild(iframe);
        }
        A_04_08_01_T1.done();
    });
});
</script>
</body>
</html>