133 lines
4.7 KiB
HTML
133 lines
4.7 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=1087460
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-->
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<head>
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<title>Test for custom element callbacks in shadow DOM.</title>
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<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
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</head>
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<body>
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1087460">Bug 1087460</a>
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<div id="container"></div>
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<script>
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// Test callback for custom element when used after registration.
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var createdCallbackCount = 0;
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var attachedCallbackCount = 0;
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var detachedCallbackCount = 0;
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var attributeChangedCallbackCount = 0;
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var p1 = Object.create(HTMLElement.prototype);
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p1.createdCallback = function() {
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createdCallbackCount++;
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};
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p1.attachedCallback = function() {
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attachedCallbackCount++;
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};
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p1.detachedCallback = function() {
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detachedCallbackCount++;
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};
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p1.attributeChangedCallback = function(name, oldValue, newValue) {
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attributeChangedCallbackCount++;
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};
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document.registerElement("x-foo", { prototype: p1 });
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var container = document.getElementById("container");
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var shadow = container.createShadowRoot();
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is(createdCallbackCount, 0, "createdCallback should not be called more than once in this test.");
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var customElem = document.createElement("x-foo");
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is(createdCallbackCount, 1, "createdCallback should be called after creating custom element.");
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is(attributeChangedCallbackCount, 0, "attributeChangedCallback should not be called after just creating an element.");
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customElem.setAttribute("data-foo", "bar");
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is(attributeChangedCallbackCount, 1, "attributeChangedCallback should be called after setting an attribute.");
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is(attachedCallbackCount, 0, "attachedCallback should not be called on an element that is not in a document/composed document.");
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shadow.appendChild(customElem);
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is(attachedCallbackCount, 1, "attachedCallback should be called after attaching custom element to the composed document.");
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is(detachedCallbackCount, 0, "detachedCallback should not be called without detaching custom element.");
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shadow.removeChild(customElem);
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is(detachedCallbackCount, 1, "detachedCallback should be called after detaching custom element from the composed document.");
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// Test callback for custom element already in the composed doc when created.
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createdCallbackCount = 0;
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attachedCallbackCount = 0;
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detachedCallbackCount = 0;
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attributeChangedCallbackCount = 0;
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shadow.innerHTML = "<x-foo></x-foo>";
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is(createdCallbackCount, 1, "createdCallback should be called after creating a custom element.");
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is(attachedCallbackCount, 1, "attachedCallback should be called after creating an element in the composed document.");
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shadow.innerHTML = "";
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is(detachedCallbackCount, 1, "detachedCallback should be called after detaching custom element from the composed document.");
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// Test callback for custom element in shadow DOM when host attached/detached to/from document.
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createdCallbackCount = 0;
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attachedCallbackCount = 0;
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detachedCallbackCount = 0;
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attributeChangedCallbackCount = 0;
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var host = document.createElement("div");
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shadow = host.createShadowRoot();
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customElem = document.createElement("x-foo");
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is(attachedCallbackCount, 0, "attachedCallback should not be called on newly created element.");
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shadow.appendChild(customElem);
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is(attachedCallbackCount, 0, "attachedCallback should not be called on attaching to a tree that is not in the composed document.");
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is(attachedCallbackCount, 0, "detachedCallback should not be called.");
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shadow.removeChild(customElem);
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is(detachedCallbackCount, 0, "detachedCallback should not be called when detaching from a tree that is not in the composed document.");
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shadow.appendChild(customElem);
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is(attachedCallbackCount, 0, "attachedCallback should still not be called after reattaching to a shadow tree that is not in the composed document.");
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container.appendChild(host);
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is(attachedCallbackCount, 1, "attachedCallback should be called after host is inserted into document.");
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container.removeChild(host);
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is(detachedCallbackCount, 1, "detachedCallback should be called after host is removed from document.");
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// Test callback for custom element for upgraded element.
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createdCallbackCount = 0;
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attachedCallbackCount = 0;
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detachedCallbackCount = 0;
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attributeChangedCallbackCount = 0;
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shadow = container.shadowRoot;
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shadow.innerHTML = "<x-bar></x-bar>";
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var p2 = Object.create(HTMLElement.prototype);
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p2.createdCallback = function() {
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createdCallbackCount++;
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};
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p2.attachedCallback = function() {
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attachedCallbackCount++;
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};
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document.registerElement("x-bar", { prototype: p2 });
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is(createdCallbackCount, 1, "createdCallback should be called after registering element.");
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is(attachedCallbackCount, 1, "attachedCallback should be called after upgrading element in composed document.");
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</script>
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</body>
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</html>
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