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95 lines
2.9 KiB
HTML
95 lines
2.9 KiB
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<head>
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<title>Node.prototype.isConnected</title>
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<link rel=help href="https://dom.spec.whatwg.org/#dom-node-isconnected">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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</head>
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<body>
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<script>
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"use strict";
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test(function() {
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var nodes = [document.createElement("div"),
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document.createElement("div"),
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document.createElement("div")];
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checkNodes([], nodes);
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// Append nodes[0].
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document.body.appendChild(nodes[0]);
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checkNodes([nodes[0]],
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[nodes[1], nodes[2]]);
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// Append nodes[1] and nodes[2] together.
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nodes[1].appendChild(nodes[2]);
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checkNodes([nodes[0]],
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[nodes[1], nodes[2]]);
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nodes[0].appendChild(nodes[1]);
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checkNodes(nodes, []);
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// Remove nodes[2].
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nodes[2].remove();
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checkNodes([nodes[0], nodes[1]],
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[nodes[2]]);
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// Remove nodes[0] and nodes[1] together.
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nodes[0].remove();
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checkNodes([], nodes);
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}, "Test with ordinary child nodes");
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test(function() {
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var nodes = [document.createElement("iframe"),
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document.createElement("iframe"),
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document.createElement("iframe"),
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document.createElement("iframe"),
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document.createElement("div")];
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var frames = [nodes[0],
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nodes[1],
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nodes[2],
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nodes[3]];
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checkNodes([], nodes);
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// Since we cannot append anything to the contentWindow of an iframe before it
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// is appended to the main DOM tree, we append the iframes one after another.
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document.body.appendChild(nodes[0]);
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checkNodes([nodes[0]],
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[nodes[1], nodes[2], nodes[3], nodes[4]]);
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frames[0].contentDocument.body.appendChild(nodes[1]);
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checkNodes([nodes[0], nodes[1]],
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[nodes[2], nodes[3], nodes[4]]);
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frames[1].contentDocument.body.appendChild(nodes[2]);
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checkNodes([nodes[0], nodes[1], nodes[2]],
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[nodes[3], nodes[4]]);
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frames[2].contentDocument.body.appendChild(nodes[3]);
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checkNodes([nodes[0], nodes[1], nodes[2], nodes[3]],
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[nodes[4]]);
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frames[3].contentDocument.body.appendChild(nodes[4]);
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checkNodes(nodes, []);
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frames[3].remove();
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// Since node[4] is still under the doument of frame[3], it's still connected.
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checkNodes([nodes[0], nodes[1], nodes[2], nodes[4]],
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[nodes[3]]);
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frames[0].remove();
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// Since node[1] and node[2] are still under the doument of frame[0], they are
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// still connected.
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checkNodes([nodes[1], nodes[2], nodes[4]],
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[nodes[0], nodes[3]]);
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}, "Test with iframes");
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// This helper function is used to check whether nodes should be connected.
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function checkNodes(aConnectedNodes, aDisconnectedNodes) {
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aConnectedNodes.forEach(node => assert_true(node.isConnected));
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aDisconnectedNodes.forEach(node => assert_false(node.isConnected));
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}
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</script>
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</body>
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