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// META: global=window
// META: script=/resources/testdriver.js
// META: script=/resources/testdriver-vendor.js
'use strict';
promise_test(async t => {
assert_equals(typeof self.getScreenDetails, 'function');
}, 'getScreenDetails() is present');
promise_test(async t => {
await test_driver.set_permission({name: 'window-placement'}, 'granted');
const screenDetails = await self.getScreenDetails();
assert_true(ScreenDetails.prototype.isPrototypeOf(screenDetails));
assert_true(ScreenDetailed.prototype.isPrototypeOf(screenDetails.currentScreen));
assert_true(Array.prototype.isPrototypeOf(screenDetails.screens));
assert_greater_than(screenDetails.screens.length, 0);
assert_true(ScreenDetailed.prototype.isPrototypeOf(screenDetails.screens[0]));
assert_true(screenDetails.screens.includes(screenDetails.currentScreen));
}, 'getScreenDetails() returns the expected interface with permission granted');
promise_test(async t => {
await test_driver.set_permission({name: 'window-placement'}, 'granted');
assert_greater_than((await self.getScreenDetails()).screens.length, 0);
await test_driver.set_permission({name: 'window-placement'}, 'denied');
await promise_rejects_dom(t, 'NotAllowedError', self.getScreenDetails());
}, 'getScreenDetails() rejects the promise with permission denied');
promise_test(async t => {
await test_driver.set_permission({name: 'window-placement'}, 'granted');
let iframe = document.body.appendChild(document.createElement('iframe'));
assert_greater_than((await iframe.contentWindow.getScreenDetails()).screens.length, 0);
let iframeGetScreens;
let constructor;
await new Promise(resolve => {
iframe.contentWindow.onunload = () => {
// Grab these before the contentWindow is removed.
iframeGetScreens = iframe.contentWindow.getScreenDetails;
constructor = iframe.contentWindow.DOMException;
resolve();
};
document.body.removeChild(iframe);
});
assert_not_equals(iframeGetScreens, undefined);
assert_not_equals(constructor, undefined);
await t.step_wait(() => !iframe.contentWindow, 'execution context invalid');
assert_equals(iframe.contentWindow, null);
await promise_rejects_dom(t, 'InvalidStateError', constructor, iframeGetScreens());
}, 'getScreenDetails() resolves for attached iframe; rejects for detached iframe');
promise_test(async t => {
await test_driver.set_permission({name: 'window-placement'}, 'granted');
let iframe = document.body.appendChild(document.createElement('iframe'));
const screenDetails = await iframe.contentWindow.getScreenDetails();
assert_greater_than(screenDetails.screens.length, 0);
assert_equals(screenDetails.currentScreen, screenDetails.screens[0]);
iframe.remove();
await t.step_wait(() => !iframe.contentWindow, 'execution context invalid');
assert_equals(iframe.contentWindow, null);
assert_equals(screenDetails.screens.length, 0);
assert_equals(screenDetails.currentScreen, null);
}, 'Cached ScreenDetails interface from detached iframe does not crash, behaves okay');
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