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fc4819e1e0
Refactors Event and EventTarget so that they better encapsulate their non-public data as well as are more forward compatible with things like DOM Nodes. Moves `dom_types.ts` -> `dom_types.d.ts` which was always the intention, it was a legacy of when we used to build the types from the code and the limitations of the compiler. There was a lot of cruft in `dom_types` which shouldn't have been there, and mis-alignment to the DOM standards. This generally has been eliminated, though we still have some minor differences from the DOM (like the removal of some deprecated methods/properties). Adds `DOMException`. Strictly it shouldn't inherit from `Error`, but most browsers provide a stack trace when one is thrown, so the behaviour in Deno actually better matches the browser. `Event` still doesn't log to console like it does in the browser. I wanted to get this raised and that could be an enhancement later on (it currently doesn't either).
94 lines
3 KiB
TypeScript
94 lines
3 KiB
TypeScript
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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import { unitTest, assertEquals, assert } from "./test_util.ts";
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unitTest(function eventInitializedWithType(): void {
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const type = "click";
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const event = new Event(type);
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assertEquals(event.isTrusted, false);
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assertEquals(event.target, null);
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assertEquals(event.currentTarget, null);
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assertEquals(event.type, "click");
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assertEquals(event.bubbles, false);
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assertEquals(event.cancelable, false);
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});
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unitTest(function eventInitializedWithTypeAndDict(): void {
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const init = "submit";
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const eventInit = { bubbles: true, cancelable: true } as EventInit;
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const event = new Event(init, eventInit);
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assertEquals(event.isTrusted, false);
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assertEquals(event.target, null);
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assertEquals(event.currentTarget, null);
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assertEquals(event.type, "submit");
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assertEquals(event.bubbles, true);
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assertEquals(event.cancelable, true);
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});
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unitTest(function eventComposedPathSuccess(): void {
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const type = "click";
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const event = new Event(type);
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const composedPath = event.composedPath();
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assertEquals(composedPath, []);
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});
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unitTest(function eventStopPropagationSuccess(): void {
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const type = "click";
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const event = new Event(type);
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assertEquals(event.cancelBubble, false);
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event.stopPropagation();
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assertEquals(event.cancelBubble, true);
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});
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unitTest(function eventStopImmediatePropagationSuccess(): void {
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const type = "click";
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const event = new Event(type);
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assertEquals(event.cancelBubble, false);
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event.stopImmediatePropagation();
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assertEquals(event.cancelBubble, true);
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});
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unitTest(function eventPreventDefaultSuccess(): void {
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const type = "click";
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const event = new Event(type);
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assertEquals(event.defaultPrevented, false);
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event.preventDefault();
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assertEquals(event.defaultPrevented, false);
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const eventInit = { bubbles: true, cancelable: true } as EventInit;
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const cancelableEvent = new Event(type, eventInit);
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assertEquals(cancelableEvent.defaultPrevented, false);
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cancelableEvent.preventDefault();
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assertEquals(cancelableEvent.defaultPrevented, true);
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});
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unitTest(function eventInitializedWithNonStringType(): void {
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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const type: any = undefined;
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const event = new Event(type);
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assertEquals(event.isTrusted, false);
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assertEquals(event.target, null);
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assertEquals(event.currentTarget, null);
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assertEquals(event.type, "undefined");
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assertEquals(event.bubbles, false);
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assertEquals(event.cancelable, false);
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});
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// ref https://github.com/web-platform-tests/wpt/blob/master/dom/events/Event-isTrusted.any.js
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unitTest(function eventIsTrusted(): void {
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const desc1 = Object.getOwnPropertyDescriptor(new Event("x"), "isTrusted");
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assert(desc1);
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assertEquals(typeof desc1.get, "function");
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const desc2 = Object.getOwnPropertyDescriptor(new Event("x"), "isTrusted");
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assert(desc2);
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assertEquals(typeof desc2!.get, "function");
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assertEquals(desc1!.get, desc2!.get);
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});
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