gecko/dom/tests/mochitest/webcomponents/test_dest_insertion_points.html

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HTML

<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=999999
-->
<head>
<meta charset="utf-8">
<title>Test for Bug 999999</title>
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=999999">Mozilla Bug 999999</a>
<p id="display"></p>
<div id="content">
<div id="shadowhost">
</div>
</div>
<pre id="test">
</pre>
<script type="application/javascript">
/** Test for Bug 999999 **/
var host = document.getElementById("shadowhost");
// Test destination insertion points of node distributed to content element.
var shadowRoot = host.createShadowRoot();
shadowRoot.innerHTML = '<div id="innerhost"><content id="innercontent" select=".red"></content></div>';
var innerContent = shadowRoot.getElementById("innercontent");
var span = document.createElement("span");
span.setAttribute("class", "red blue");
is(host.getDestinationInsertionPoints().length, 0, "Destination insertion points should be empty when not being distributed.");
host.appendChild(span);
is(span.getDestinationInsertionPoints().length, 1, "Destination insertion points should only contain a single content insertion point.");
is(span.getDestinationInsertionPoints()[0], innerContent, "Content element should contain destination insertion point.");
// Test destination insertion points of redistributed node.
var innerHost = shadowRoot.getElementById("innerhost");
var innerShadowRoot = innerHost.createShadowRoot();
innerShadowRoot.innerHTML = '<content id="innerinnercontent" select=".blue"></content>';
var innerInnerContent = innerShadowRoot.getElementById("innerinnercontent");
is(span.getDestinationInsertionPoints().length, 2, "Redistributed node should have 2 destination insertion points.");
is(span.getDestinationInsertionPoints()[1], innerInnerContent, "Nested content insertion point should be in list of destination insertion points.");
// Test destination insertion points after removing reprojection onto second content element.
span.setAttribute("class", "red");
is(span.getDestinationInsertionPoints().length, 1, "Destination insertion points should only contain 1 insertion point after removing reprojection.");
is(span.getDestinationInsertionPoints()[0], innerContent, "First content element should be only insertion point after removing reprojection.");
// Test destination insertion points after removing the projected content from the host.
host.removeChild(span);
is(span.getDestinationInsertionPoints().length, 0, "Destination insertion points should be empty after being removed from the shadow host.");
// Test destination insertion points of distributed content after removing insertion point.
var div = document.createElement("div");
div.setAttribute("class", "red blue");
host.appendChild(div);
is(div.getDestinationInsertionPoints().length, 2, "Div should be distributed into 2 insertion points.");
innerShadowRoot.removeChild(innerInnerContent);
is(div.getDestinationInsertionPoints().length, 1, "Div should be distributed into insertion point in one ShadowRoot.");
is(div.getDestinationInsertionPoints()[0], innerContent, "Destination insertion points should only contain content insertion point in first ShadowRoot.");
</script>
</body>
</html>