<!DOCTYPE HTML> <meta charset=utf-8> <title>MutationObservers: childList mutations</title> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <script src="mutationobservers.js"></script> <h1>MutationObservers: childList mutations</h1> <div id="log"></div> <section style="display: none"> <p id='dummies'> <span id='d30'>text content</span> <span id='d35'>text content</span> <span id='d40'>text content</span> <span id='d45'>text content</span> <span id='d50'>text content</span> <span id='d51'>text content</span> </p> </section> <section style="display: none"> <p id='n00'><span>text content</span></p> <p id='n10'><span>text content</span></p> <p id='n11'></p> <p id='n12'></p> <p id='n13'><span>text content</span></p> <p id='n20'>PAS</p> <p id='n21'>CH</p> <p id='n30'><span>text content</span></p> <p id='n31'><span>text content</span></p> <p id='n32'><span>AN</span><span>CH</span><span>GED</span></p> <p id='n33'><span>text content</span></p> <p id='n34'><span>text content</span></p> <p id='n35'><span>text content</span></p> <p id='n40'><span>text content</span></p> <p id='n41'><span>text content</span></p> <p id='n42'><span>CH</span><span>GED</span><span>AN</span></p> <p id='n43'><span>text content</span></p> <p id='n44'><span>text content</span></p> <p id='n45'><span>text content</span></p> <p id='n50'><span>text content</span></p> <p id='n51'><span>text content</span></p> <p id='n52'><span>NO </span><span>CHANGED</span></p> <p id='n53'><span>text content</span></p> <p id='n60'><span>text content</span></p> <p id='n70'><span>NO </span><span>CHANGED</span></p> <p id='n71'>CHANN</p> <p id='n80'><span>NO </span><span>CHANGED</span></p> <p id='n81'>CHANN</p> <p id='n90'><span>CHA</span><span>ED</span></p> <p id='n91'>CHAE</p> <p id='n100'><span id="s1">CHAN</span><span id="s2">GED</span></p> </section> <script> var dummies = document.getElementById('dummies'); function createFragment() { var fragment = document.createDocumentFragment(); fragment.appendChild(document.createTextNode("11")); fragment.appendChild(document.createTextNode("22")); return fragment; } var n00 = document.getElementById('n00'); runMutationTest(n00, {"childList":true, "attributes":true}, [{type: "attributes", attributeName: "class"}], function() { n00.nodeValue = ""; n00.setAttribute("class", "dummy");}, "childList Node.nodeValue: no mutation"); var n10 = document.getElementById('n10'); runMutationTest(n10, {"childList":true}, [{type: "childList", removedNodes: [n10.firstChild], addedNodes: function() {return [n10.firstChild]}}], function() { n10.textContent = "new data"; }, "childList Node.textContent: replace content mutation"); var n11 = document.getElementById('n11'); runMutationTest(n11, {"childList":true}, [{type: "childList", addedNodes: function() {return [n11.firstChild]}}], function() { n11.textContent = "new data"; }, "childList Node.textContent: no previous content mutation"); var n12 = document.getElementById('n12'); runMutationTest(n12, {"childList":true, "attributes":true}, [{type: "attributes", attributeName: "class"}], function() { n12.textContent = ""; n12.setAttribute("class", "dummy");}, "childList Node.textContent: textContent no mutation"); var n13 = document.getElementById('n13'); runMutationTest(n13, {"childList":true}, [{type: "childList", removedNodes: [n13.firstChild]}], function() { n13.textContent = ""; }, "childList Node.textContent: empty string mutation"); var n20 = document.getElementById('n20'); n20.appendChild(document.createTextNode("S")); runMutationTest(n20, {"childList":true}, [{type: "childList", removedNodes: [n20.lastChild], previousSibling: n20.firstChild}], function() { n20.normalize(); }, "childList Node.normalize mutation"); var n21 = document.getElementById('n21'); n21.appendChild(document.createTextNode("AN")); n21.appendChild(document.createTextNode("GED")); runMutationTest(n21, {"childList":true}, [{type: "childList", removedNodes: [n21.lastChild.previousSibling], previousSibling: n21.firstChild, nextSibling: n21.lastChild}, {type: "childList", removedNodes: [n21.lastChild], previousSibling: n21.firstChild}], function() { n21.normalize(); }, "childList Node.normalize mutations"); var n30 = document.getElementById('n30'); var d30 = document.getElementById('d30'); runMutationTest(n30, {"childList":true}, [{type: "childList", addedNodes: [d30], nextSibling: n30.firstChild}], function() { n30.insertBefore(d30, n30.firstChild); }, "childList Node.insertBefore: addition mutation"); var n31 = document.getElementById('n31'); runMutationTest(n31, {"childList":true}, [{type: "childList", removedNodes: [n31.firstChild]}], function() { dummies.insertBefore(n31.firstChild, dummies.firstChild); }, "childList Node.insertBefore: removal mutation"); var n32 = document.getElementById('n32'); runMutationTest(n32, {"childList":true}, [{type: "childList", removedNodes: [n32.firstChild.nextSibling], previousSibling: n32.firstChild, nextSibling: n32.lastChild}, {type: "childList", addedNodes: [n32.firstChild.nextSibling], nextSibling: n32.firstChild}], function() { n32.insertBefore(n32.firstChild.nextSibling, n32.firstChild); }, "childList Node.insertBefore: removal and addition mutations"); var n33 = document.getElementById('n33'); var f33 = createFragment(); runMutationTest(n33, {"childList":true}, [{type: "childList", addedNodes: [f33.firstChild, f33.lastChild], nextSibling: n33.firstChild}], function() { n33.insertBefore(f33, n33.firstChild); }, "childList Node.insertBefore: fragment addition mutations"); var n34 = document.getElementById('n34'); var f34 = createFragment(); runMutationTest(f34, {"childList":true}, [{type: "childList", removedNodes: [f34.firstChild, f34.lastChild]}], function() { n34.insertBefore(f34, n34.firstChild); }, "childList Node.insertBefore: fragment removal mutations"); var n35 = document.getElementById('n35'); var d35 = document.getElementById('d35'); runMutationTest(n35, {"childList":true}, [{type: "childList", addedNodes: [d35], previousSibling: n35.firstChild}], function() { n35.insertBefore(d35, null); }, "childList Node.insertBefore: last child addition mutation"); var n40 = document.getElementById('n40'); var d40 = document.getElementById('d40'); runMutationTest(n40, {"childList":true}, [{type: "childList", addedNodes: [d40], previousSibling: n40.firstChild}], function() { n40.appendChild(d40); }, "childList Node.appendChild: addition mutation"); var n41 = document.getElementById('n41'); runMutationTest(n41, {"childList":true}, [{type: "childList", removedNodes: [n41.firstChild]}], function() { dummies.appendChild(n41.firstChild); }, "childList Node.appendChild: removal mutation"); var n42 = document.getElementById('n42'); runMutationTest(n42, {"childList":true}, [{type: "childList", removedNodes: [n42.firstChild.nextSibling], previousSibling: n42.firstChild, nextSibling: n42.lastChild}, {type: "childList", addedNodes: [n42.firstChild.nextSibling], previousSibling: n42.lastChild}], function() { n42.appendChild(n42.firstChild.nextSibling); }, "childList Node.appendChild: removal and addition mutations"); var n43 = document.getElementById('n43'); var f43 = createFragment(); runMutationTest(n43, {"childList":true}, [{type: "childList", addedNodes: [f43.firstChild, f43.lastChild], previousSibling: n43.firstChild}], function() { n43.appendChild(f43); }, "childList Node.appendChild: fragment addition mutations"); var n44 = document.getElementById('n44'); var f44 = createFragment(); runMutationTest(f44, {"childList":true}, [{type: "childList", removedNodes: [f44.firstChild, f44.lastChild]}], function() { n44.appendChild(f44); }, "childList Node.appendChild: fragment removal mutations"); var n45 = document.createElement('p'); var d45 = document.createElement('span'); runMutationTest(n45, {"childList":true}, [{type: "childList", addedNodes: [d45]}], function() { n45.appendChild(d45); }, "childList Node.appendChild: addition outside document tree mutation"); var n50 = document.getElementById('n50'); var d50 = document.getElementById('d50'); runMutationTest(n50, {"childList":true}, [{type: "childList", removedNodes: [n50.firstChild], addedNodes: [d50]}], function() { n50.replaceChild(d50, n50.firstChild); }, "childList Node.replaceChild: replacement mutation"); var n51 = document.getElementById('n51'); var d51 = document.getElementById('d51'); runMutationTest(n51, {"childList":true}, [{type: "childList", removedNodes: [n51.firstChild]}], function() { d51.parentNode.replaceChild(n51.firstChild, d51); }, "childList Node.replaceChild: removal mutation"); var n52 = document.getElementById('n52'); runMutationTest(n52, {"childList":true}, [{type: "childList", removedNodes: [n52.lastChild], previousSibling: n52.firstChild}, {type: "childList", removedNodes: [n52.firstChild], addedNodes: [n52.lastChild]}], function() { n52.replaceChild(n52.lastChild, n52.firstChild); }, "childList Node.replaceChild: internal replacement mutation"); var n53 = document.getElementById('n53'); runMutationTest(n53, {"childList":true}, [{type: "childList", removedNodes: [n53.firstChild]}, {type: "childList", addedNodes: [n53.firstChild]}], function() { n53.replaceChild(n53.firstChild, n53.firstChild); }, "childList Node.replaceChild: self internal replacement mutation"); var n60 = document.getElementById('n60'); runMutationTest(n60, {"childList":true}, [{type: "childList", removedNodes: [n60.firstChild]}], function() { n60.removeChild(n60.firstChild); }, "childList Node.removeChild: removal mutation"); var n70 = document.getElementById('n70'); var r70 = null; test(function () { r70 = document.createRange(); r70.setStartBefore(n70.firstChild); r70.setEndAfter(n70.firstChild); }, "Range (r70) is created"); runMutationTest(n70, {"childList":true}, [{type: "childList", removedNodes: [n70.firstChild], nextSibling: n70.lastChild}], function() { r70.deleteContents(); }, "childList Range.deleteContents: child removal mutation"); var n71 = document.getElementById('n71'); var r71 = null; test(function () { n71.appendChild(document.createTextNode("NNN")); n71.appendChild(document.createTextNode("NGED")); r71 = document.createRange(); r71.setStart(n71.firstChild, 4); r71.setEnd(n71.lastChild, 1); }, "Range (r71) is created"); runMutationTest(n71, {"childList":true}, [{type: "childList", removedNodes: [n71.firstChild.nextSibling], previousSibling: n71.firstChild, nextSibling: n71.lastChild}], function() { r71.deleteContents(); }, "childList Range.deleteContents: child and data removal mutation"); var n80 = document.getElementById('n80'); var r80 = null; test(function () { r80 = document.createRange(); r80.setStartBefore(n80.firstChild); r80.setEndAfter(n80.firstChild); }, "Range (r80) is created"); runMutationTest(n80, {"childList":true}, [{type: "childList", removedNodes: [n80.firstChild], nextSibling: n80.lastChild}], function() { r80.extractContents(); }, "childList Range.extractContents: child removal mutation"); var n81 = document.getElementById('n81'); var r81 = null; test(function () { n81.appendChild(document.createTextNode("NNN")); n81.appendChild(document.createTextNode("NGED")); r81 = document.createRange(); r81.setStart(n81.firstChild, 4); r81.setEnd(n81.lastChild, 1); }, "Range (r81) is created"); runMutationTest(n81, {"childList":true}, [{type: "childList", removedNodes: [n81.firstChild.nextSibling], previousSibling: n81.firstChild, nextSibling: n81.lastChild}], function() { r81.extractContents(); }, "childList Range.extractContents: child and data removal mutation"); var n90 = document.getElementById('n90'); var f90 = document.createTextNode("NG"); var r90 = null; test(function () { r90 = document.createRange(); r90.setStartAfter(n90.firstChild); r90.setEndBefore(n90.lastChild); }, "Range (r90) is created"); runMutationTest(n90, {"childList":true}, [{type: "childList", addedNodes: [f90], previousSibling: n90.firstChild, nextSibling: n90.lastChild}], function() { r90.insertNode(f90); }, "childList Range.insertNode: child insertion mutation"); var n91 = document.getElementById('n91'); var f91 = document.createTextNode("NG"); var r91 = null; test(function () { n91.appendChild(document.createTextNode("D")); r91 = document.createRange(); r91.setStart(n91.firstChild, 3); r91.setEnd(n91.lastChild, 0); }, "Range (r91) is created"); runMutationTest(n91, {"childList":true}, [{type: "childList", addedNodes: function() { return [n91.lastChild.previousSibling]; }, previousSibling: n91.firstChild, nextSibling: n91.lastChild}, {type: "childList", addedNodes: [f91], previousSibling: n91.firstChild, nextSibling: function () { return n91.lastChild.previousSibling; } }], function() { r91.insertNode(f91); }, "childList Range.insertNode: children insertion mutation"); var n100 = document.getElementById('n100'); var f100 = document.createElement("span"); var r100 = null; test(function () { r100 = document.createRange(); r100.setStartBefore(n100.firstChild); r100.setEndAfter(n100.lastChild); }, "Range (r100) is created"); runMutationTest(n100, {"childList":true}, [{type: "childList", removedNodes: [n100.firstChild], nextSibling: n100.lastChild}, {type: "childList", removedNodes: [n100.lastChild]}, {type: "childList", addedNodes: [f100] }], function() { r100.surroundContents(f100); }, "childList Range.surroundContents: children removal and addition mutation"); </script>