| Index: third_party/WebKit/LayoutTests/imported/wpt/custom-elements/htmlconstructor/newtarget.html
|
| diff --git a/third_party/WebKit/LayoutTests/imported/wpt/custom-elements/htmlconstructor/newtarget.html b/third_party/WebKit/LayoutTests/imported/wpt/custom-elements/htmlconstructor/newtarget.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..04b4c4986493ccf0e43cef0dd06c909e8f99bc3c
|
| --- /dev/null
|
| +++ b/third_party/WebKit/LayoutTests/imported/wpt/custom-elements/htmlconstructor/newtarget.html
|
| @@ -0,0 +1,124 @@
|
| +<!DOCTYPE html>
|
| +<title>Custom Elements: [HTMLConstructor] derives prototype from NewTarget</title>
|
| +<meta name="author" title="Domenic Denicola" href="mailto:d@domenic.me">
|
| +<meta name="help" content="https://html.spec.whatwg.org/multipage/dom.html#htmlconstructor">
|
| +<script src="/resources/testharness.js"></script>
|
| +<script src="/resources/testharnessreport.js"></script>
|
| +<script src="../resources/custom-elements-helpers.js"></script>
|
| +
|
| +<script>
|
| +"use strict";
|
| +
|
| +test_with_window(w => {
|
| + let afterDefinition = false;
|
| + const proto1 = { "proto": "number one" };
|
| + const proto2 = { "proto": "number two" };
|
| +
|
| + const TestElement = (function () {
|
| + assert_throws({ name: "prototype throws" }, () => {
|
| + const o = Reflect.construct(w.HTMLElement, [], new.target);
|
| +
|
| + assert_equals(Object.getPrototypeOf(o), proto2,
|
| + "Must use the value returned from new.target.prototype");
|
| + assert_not_equals(Object.getPrototypeOf(o), proto1,
|
| + "Must not use the prototype stored at definition time");
|
| + });
|
| + }).bind({});
|
| +
|
| + Object.defineProperty(TestElement, "prototype", {
|
| + get() {
|
| + return beforeDefinition ? proto1 : proto2;
|
| + }
|
| + });
|
| +
|
| + w.customElements.define("test-element", TestElement);
|
| +
|
| + beforeDefinition = true;
|
| + new TestElement();
|
| +
|
| +}, "Use NewTarget's prototype, not the one stored at definition time");
|
| +
|
| +test_with_window(w => {
|
| + // We have to not throw during define(), but throw during super()
|
| + let throws = false;
|
| +
|
| + const TestElement = (function () {
|
| + assert_throws({ name: "prototype throws" }, () => {
|
| + return Reflect.construct(w.HTMLElement, [], new.target);
|
| + });
|
| + }).bind({});
|
| +
|
| + Object.defineProperty(TestElement, "prototype", {
|
| + get() {
|
| + if (throws) {
|
| + throw { name: "prototype throws" };
|
| + }
|
| + return {};
|
| + }
|
| + });
|
| +
|
| + w.customElements.define("test-element", TestElement);
|
| +
|
| + throws = true;
|
| + new TestElement();
|
| +
|
| +}, "Rethrow any exceptions thrown while getting the prototype");
|
| +
|
| +test_with_window(w => {
|
| + for (const notAnObject of [null, undefined, 5, "string"]) {
|
| + // We have to return an object during define(), but not during super()
|
| + let returnNotAnObject = false;
|
| +
|
| + const TestElement = (function () {
|
| + const o = Reflect.construct(w.HTMLElement, [], new.target);
|
| +
|
| + assert_equals(Object.getPrototypeOf(o), window.HTMLElement,
|
| + "Must use the HTMLElement from the realm of NewTarget");
|
| + assert_not_equals(Object.getPrototypeOf(o), w.HTMLElement,
|
| + "Must not use the HTMLElement from the realm of the active function object (w.HTMLElement)");
|
| +
|
| + return o;
|
| + }).bind({});
|
| +
|
| + Object.defineProperty(TestElement, "prototype", {
|
| + get() {
|
| + return returnNotAnObject ? notAnObject : {};
|
| + }
|
| + });
|
| +
|
| + w.customElements.define("test-element", TestElement);
|
| +
|
| + returnNotAnObject = true;
|
| + new TestElement();
|
| + }
|
| +}, "If prototype is not object, derives the fallback from NewTarget's realm (autonomous custom elements)");
|
| +
|
| +test_with_window(w => {
|
| + for (const notAnObject of [null, undefined, 5, "string"]) {
|
| + // We have to return an object during define(), but not during super()
|
| + let returnNotAnObject = false;
|
| +
|
| + const TestElement = (function () {
|
| + const o = Reflect.construct(w.HTMLParagraphElement, [], new.target);
|
| +
|
| + assert_equals(Object.getPrototypeOf(o), window.HTMLParagraphElement,
|
| + "Must use the HTMLParagraphElement from the realm of NewTarget");
|
| + assert_not_equals(Object.getPrototypeOf(o), w.HTMLParagraphElement,
|
| + "Must not use the HTMLParagraphElement from the realm of the active function object (w.HTMLParagraphElement)");
|
| +
|
| + return o;
|
| + }).bind({});
|
| +
|
| + Object.defineProperty(TestElement, "prototype", {
|
| + get() {
|
| + return returnNotAnObject ? notAnObject : {};
|
| + }
|
| + });
|
| +
|
| + w.customElements.define("test-element", TestElement, { extends: "p" });
|
| +
|
| + returnNotAnObject = true;
|
| + new TestElement();
|
| + }
|
| +}, "If prototype is not object, derives the fallback from NewTarget's realm (customized built-in elements)");
|
| +</script>
|
|
|
Chromium Code Reviews
Issue 2303013002:
Add UMA metric to track usage of sending a mousedown to select elements. (Closed)
