| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <meta name="flags" content="dom"> |
| <title>CSS Test: CSSOM View MediaQueryListEvent</title> |
| <link rel="help" href="https://www.w3.org/TR/cssom-view-1/#mediaquerylistevent"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="resources/matchMedia.js"></script> |
| <div id="log"></div> |
| <script> |
| "use strict"; |
| |
| test(() => { |
| assert_equals(new MediaQueryListEvent("test").type, "test"); |
| }, 'type can be different from "change"'); |
| |
| test(() => { |
| const event = new MediaQueryListEvent("change"); |
| |
| assert_equals(event.media, ""); |
| assert_false(event.matches); |
| assert_false(event.bubbles); |
| assert_false(event.cancelable); |
| }, "init dictionary default values"); |
| |
| test(() => { |
| const event = new MediaQueryListEvent("change", { |
| media: "test", |
| matches: true, |
| bubbles: true, |
| cancelable: true, |
| }); |
| |
| assert_equals(event.media, "test"); |
| assert_true(event.matches); |
| assert_true(event.bubbles); |
| assert_true(event.cancelable); |
| }, "init dictionary overrides"); |
| |
| promise_test(async t => { |
| const mql = await createMQL(t); |
| |
| let _event; |
| mql.addListener(event => { |
| _event = event; |
| }); |
| |
| triggerMQLEvent(mql); |
| await waitForChangesReported(); |
| |
| assert_true(_event instanceof getWindow(mql).MediaQueryListEvent); |
| assert_equals(_event.type, "change"); |
| assert_false(_event.bubbles); |
| assert_false(_event.cancelable); |
| }, "argument of addListener"); |
| |
| promise_test(async t => { |
| const mql = await createMQL(t); |
| |
| let _event; |
| mql.onchange = event => { |
| _event = event; |
| }; |
| |
| triggerMQLEvent(mql); |
| await waitForChangesReported(); |
| |
| assert_true(_event instanceof getWindow(mql).MediaQueryListEvent); |
| assert_equals(_event.type, "change"); |
| assert_false(_event.bubbles); |
| assert_false(_event.cancelable); |
| }, "argument of onchange"); |
| |
| promise_test(async t => { |
| const mql = await createMQL(t); |
| |
| let _event; |
| mql.addEventListener("change", event => { |
| _event = event; |
| }); |
| |
| triggerMQLEvent(mql); |
| await waitForChangesReported(); |
| |
| assert_true(_event instanceof getWindow(mql).MediaQueryListEvent); |
| assert_equals(_event.type, "change"); |
| assert_false(_event.bubbles); |
| assert_false(_event.cancelable); |
| }, 'constructor of "change" event'); |
| </script> |
