157 lines
6.8 KiB
HTML
157 lines
6.8 KiB
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<title>customElements.upgrade()</title>
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<link rel="author" title="Domenic Denicola" href="mailto:d@domenic.me">
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<link rel="help" href="https://html.spec.whatwg.org/multipage/#dom-customelementregistry-upgrade">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script>
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"use strict";
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test(() => {
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const el = document.createElement("spider-man");
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class SpiderMan extends HTMLElement {}
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customElements.define("spider-man", SpiderMan);
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assert_false(el instanceof SpiderMan, "The element must not yet be upgraded");
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customElements.upgrade(el);
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assert_true(el instanceof SpiderMan, "The element must now be upgraded");
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}, "Upgrading an element directly (example from the spec)");
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test(() => {
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const el1 = document.createElement("element-a-1");
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const el2 = document.createElement("element-a-2");
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const container = document.createElement("div");
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container.appendChild(el1);
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container.appendChild(el2);
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class Element1 extends HTMLElement {}
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class Element2 extends HTMLElement {}
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customElements.define("element-a-1", Element1);
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customElements.define("element-a-2", Element2);
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assert_false(el1 instanceof Element1, "element 1 must not yet be upgraded");
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assert_false(el2 instanceof Element2, "element 2 must not yet be upgraded");
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customElements.upgrade(container);
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assert_true(el1 instanceof Element1, "element 1 must now be upgraded");
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assert_true(el2 instanceof Element2, "element 2 must now be upgraded");
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}, "Two elements as children of the upgraded node");
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test(() => {
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const el1 = document.createElement("element-b-1");
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const el2 = document.createElement("element-b-2");
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const container = document.createElement("div");
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const subContainer = document.createElement("span");
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const subSubContainer = document.createElement("span");
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container.appendChild(subContainer);
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subContainer.appendChild(el1);
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subContainer.appendChild(subSubContainer);
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subSubContainer.appendChild(el2);
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class Element1 extends HTMLElement {}
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class Element2 extends HTMLElement {}
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customElements.define("element-b-1", Element1);
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customElements.define("element-b-2", Element2);
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assert_false(el1 instanceof Element1, "element 1 must not yet be upgraded");
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assert_false(el2 instanceof Element2, "element 2 must not yet be upgraded");
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customElements.upgrade(container);
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assert_true(el1 instanceof Element1, "element 1 must now be upgraded");
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assert_true(el2 instanceof Element2, "element 2 must now be upgraded");
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}, "Two elements as descendants of the upgraded node");
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test(() => {
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const el1 = document.createElement("element-d-1");
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const el2 = document.createElement("element-d-2");
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const container = document.createElement("div");
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const subContainer = document.createElement("span");
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subContainer.attachShadow({ mode: "open" });
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const subSubContainer = document.createElement("span");
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subSubContainer.attachShadow({ mode: "open" });
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container.appendChild(subContainer);
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subContainer.shadowRoot.appendChild(el1);
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subContainer.shadowRoot.appendChild(subSubContainer);
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subSubContainer.shadowRoot.appendChild(el2);
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class Element1 extends HTMLElement {}
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class Element2 extends HTMLElement {}
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customElements.define("element-d-1", Element1);
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customElements.define("element-d-2", Element2);
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assert_false(el1 instanceof Element1, "element 1 must not yet be upgraded");
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assert_false(el2 instanceof Element2, "element 2 must not yet be upgraded");
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customElements.upgrade(container);
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assert_true(el1 instanceof Element1, "element 1 must now be upgraded");
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assert_true(el2 instanceof Element2, "element 2 must now be upgraded");
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}, "Two elements as shadow-including descendants (and not descendants) of the upgraded node");
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test(() => {
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const template = document.createElement("template");
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template.innerHTML = `
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<div>
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<element-c-1></element-c-1>
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<element-c-2>
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<element-c-3></element-c-3>
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<span>
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<element-c-4></element-c-4>
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</span>
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</element-c-2>
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</div>
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<element-c-5></element-c-5>
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`;
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// This code feels repetitive but I tried to make it use loops and it became harder to see the correctness.
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const el1 = template.content.querySelector("element-c-1");
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const el2 = template.content.querySelector("element-c-2");
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const el3 = template.content.querySelector("element-c-3");
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const el4 = template.content.querySelector("element-c-4");
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const el5 = template.content.querySelector("element-c-5");
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class Element1 extends HTMLElement {}
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class Element2 extends HTMLElement {}
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class Element3 extends HTMLElement {}
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class Element4 extends HTMLElement {}
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class Element5 extends HTMLElement {}
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customElements.define("element-c-1", Element1);
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customElements.define("element-c-2", Element2);
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customElements.define("element-c-3", Element3);
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customElements.define("element-c-4", Element4);
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customElements.define("element-c-5", Element5);
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assert_false(el1 instanceof Element1, "element 1 must not yet be upgraded");
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assert_false(el2 instanceof Element2, "element 2 must not yet be upgraded");
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assert_false(el3 instanceof Element3, "element 3 must not yet be upgraded");
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assert_false(el4 instanceof Element4, "element 4 must not yet be upgraded");
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assert_false(el5 instanceof Element5, "element 5 must not yet be upgraded");
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customElements.upgrade(template);
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assert_false(el1 instanceof Element1, "element 1 must not yet be upgraded despite upgrading the template");
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assert_false(el2 instanceof Element2, "element 2 must not yet be upgraded despite upgrading the template");
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assert_false(el3 instanceof Element3, "element 3 must not yet be upgraded despite upgrading the template");
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assert_false(el4 instanceof Element4, "element 4 must not yet be upgraded despite upgrading the template");
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assert_false(el5 instanceof Element5, "element 5 must not yet be upgraded despite upgrading the template");
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customElements.upgrade(template.content);
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// Template contents owner documents don't have a browsing context, so
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// https://html.spec.whatwg.org/multipage/custom-elements.html#look-up-a-custom-element-definition does not find any
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// custom element definition.
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assert_false(el1 instanceof Element1, "element 1 must still not be upgraded after upgrading the template contents");
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assert_false(el2 instanceof Element2, "element 2 must still not be upgraded after upgrading the template contents");
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assert_false(el3 instanceof Element3, "element 3 must still not be upgraded after upgrading the template contents");
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assert_false(el4 instanceof Element4, "element 4 must still not be upgraded after upgrading the template contents");
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assert_false(el5 instanceof Element5, "element 5 must still not be upgraded after upgrading the template contents");
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}, "Elements inside a template contents DocumentFragment node");
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</script>
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