зеркало из https://github.com/mozilla/gecko-dev.git
60 строки
1.5 KiB
JavaScript
60 строки
1.5 KiB
JavaScript
/**
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* Any copyright is dedicated to the Public Domain.
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* http://creativecommons.org/publicdomain/zero/1.0/
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*/
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const fakeEventType = "foo";
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function testEventTarget(event) {
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if (event.target !== self || event.currentTarget !== self) {
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throw new Error("Event has a bad target!");
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}
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postMessage(event.data);
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}
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addEventListener(fakeEventType, function(event) {
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throw new Error("Trusted event listener received untrusted event!");
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}, false);
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addEventListener(fakeEventType, function(event) {
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if (event.target !== self || event.currentTarget !== self) {
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throw new Error("Fake event has bad target!");
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}
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if (event.isTrusted) {
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throw new Error("Event should be untrusted!");
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}
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event.stopImmediatePropagation();
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postMessage(event.data);
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}, false, true);
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addEventListener(fakeEventType, function(event) {
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throw new Error("This shouldn't get called because of stopImmediatePropagation.");
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}, false, true);
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var count = 0;
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onmessage = function(event) {
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if (event.target !== self || event.currentTarget !== self) {
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throw new Error("Event has bad target!");
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}
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if (!count++) {
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var exception;
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try {
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self.dispatchEvent(event);
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}
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catch(e) {
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exception = e;
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}
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if (!exception) {
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throw new Error("Recursive dispatch didn't fail!");
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}
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event.initMessageEvent(fakeEventType, event.bubbles, event.cancelable,
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event.data, "*", null);
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self.dispatchEvent(event);
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return;
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}
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setTimeout(testEventTarget, 0, event);
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};
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