| <!doctype html> |
| <meta charset=utf-8> |
| <title>activeElement when focusing different-site iframe then immediately focusing back</title> |
| <script src=/resources/testharness.js></script> |
| <script src=/resources/testharnessreport.js></script> |
| <script> |
| function waitForEvent(target, event, checkFn) { |
| return new Promise(resolve => { |
| target.addEventListener(event, e => { |
| if (checkFn && !checkFn(e)) { |
| return; |
| } |
| resolve(); |
| }, { once: true }); |
| }); |
| } |
| |
| // This will send message to outer frame and also inner frame to ask them |
| // send the log they collect back, the logs of outer and inner will be |
| // concatenated. |
| async function getLog(w) { |
| let log = ""; |
| step_timeout(function() { |
| w.postMessage("getlog", "*"); |
| }, 0); |
| await waitForEvent(window, "message", (e) => { |
| log = e.data; |
| return true; |
| }); |
| return log; |
| } |
| |
| // This will send message to outer frame to ask it's activeElement. |
| async function getActiveElement(w) { |
| let activeElement = ""; |
| step_timeout(function() { |
| w.postMessage("getActiveElement", "*"); |
| }, 0); |
| await waitForEvent(window, "message", (e) => { |
| activeElement = e.data; |
| return true; |
| }); |
| return activeElement; |
| } |
| |
| promise_test(async t => { |
| let w = window.open("support/activeelement-after-focusing-different-site-iframe-then-immediately-focusing-back-outer.sub.html"); |
| t.add_cleanup(() => { w.close(); }); |
| await waitForEvent(window, "message", e => e.data === "ready"); |
| w.postMessage("focus", "*"); |
| assert_equals(await getLog(w), 'outerlog:willfocusiframe,didfocusiframe,willfocusinput,inputfocus,didfocusinput,innerlog:windowfocus,windowblur,'); |
| assert_equals(await getActiveElement(w), 'INPUT'); |
| }, "Check focus event and active element after focusing different site iframe then immediately focusing back"); |
| </script> |