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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /html/webappapis/scripting/events/event-handler-idl-attribute-realm.window.html - WPT Dashboard Interop Dashboard
setup({ allow_uncaught_exception: true });
test(t => {
document.body.append(document.createElement("iframe"), document.createElement("iframe"));
t.add_cleanup(() => document.querySelectorAll("iframe").forEach(iframe => iframe.remove()));
const frame0Document = frames[0].document.documentElement;
const frame1Body = frames[1].document.body;
frame1Body.setAttribute("onclick", "void(0)");
frame0Document.appendChild(frame1Body);
const get = Object.getOwnPropertyDescriptor(HTMLElement.prototype, "onclick").get;
const f = get.call(frame1Body);
assert_equals(f.constructor, frames[0].Function, "The function must be created in the element's document's global");
}, "Event handler IDL attributes must return a function from the element's document's realm");
test(t => {
document.body.append(document.createElement("iframe"), document.createElement("iframe"));
t.add_cleanup(() => document.querySelectorAll("iframe").forEach(iframe => iframe.remove()));
const log = [];
window.addEventListener("error", t.step_func(e => {
log.push("error event in top / error object realm = " + getErrorRealm(e));
}, { signal: t.get_signal() }));
frames[0].addEventListener("error", t.step_func(e => {
log.push("error event in frames[0] / error object realm = " + getErrorRealm(e));
}, { signal: t.get_signal() }));
frames[1].addEventListener("error", t.step_func(e => {
log.push("error event in frames[1] / error object realm = " + getErrorRealm(e));
}, { signal: t.get_signal() }));
const frame0Document = frames[0].document.documentElement;
const frame1Body = frames[1].document.body;
frame1Body.setAttribute("onmousedown", "1 *-* 'syntax error'");
frame0Document.appendChild(frame1Body);
assert_array_equals(log, [], "No error events must be fired before calling the getter");
const get = Object.getOwnPropertyDescriptor(HTMLElement.prototype, "onmousedown").get;
const f = get.call(frame1Body);
assert_array_equals(log, ["error event in frames[0] / error object realm = frames[0]"]);
assert_equals(f, null, "The returned value must be null");
}, "Event handler IDL attribute compilation errors must be fired on the element's document's global");
function getErrorRealm(event) {
const { error } = event;
if (error instanceof SyntaxError) {
return "top";
} if (error instanceof frames[0].SyntaxError) {
return "frames[0]";
} if (error instanceof frames[1].SyntaxError) {
return "frames[1]";
}
return "unknown";
}