29 lines
1 KiB
HTML
29 lines
1 KiB
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<title>Test that setting "onselectionchange" content attribute adds an event listener</title>
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<link rel="help" href="https://w3c.github.io/selection-api/#extensions-to-globaleventhandlers-interface">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<body>
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<div id="testElement" onselectionchange="window.handlerSetFromParserWasFired()"></div>
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<script>
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promise_test(() => {
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return new Promise(resolve => {
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window.handlerSetFromParserWasFired = resolve;
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testElement.dispatchEvent(new Event("selectionchange"));
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});
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}, "handler set from parser");
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promise_test(() => {
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const el = document.createElement("div");
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el.setAttribute("onselectionchange", "window.handlerSetViaSetAttributeWasFired()");
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document.body.append(el);
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return new Promise(resolve => {
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window.handlerSetViaSetAttributeWasFired = resolve;
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el.dispatchEvent(new Event("selectionchange"));
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});
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}, "handler set via setAttribute()");
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</script>
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