| <!doctype html> |
| <title>Exiting fullscreen from a nested shadow root should work correctly.</title> |
| <link rel="author" title="Mozilla" href="https://mozilla.org"> |
| <link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io"> |
| <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1652155"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/resources/testdriver.js"></script> |
| <script src="/resources/testdriver-vendor.js"></script> |
| <div id="host"> |
| <button> |
| <!-- |
| This is gross, but testdriver doesn't let us click stuff in shadow |
| DOM, so here we are instead, using nested slots. |
| --> |
| fullscreen |
| </button> |
| </div> |
| <script> |
| promise_test(async function() { |
| let host = document.getElementById("host"); |
| host.attachShadow({ mode: "open" }).innerHTML = ` |
| <style> |
| #outer { width: 200px; height: 200px; background: blue } |
| </style> |
| <div id="outer"> |
| <slot></slot> |
| </div> |
| `; |
| |
| let outer = host.shadowRoot.getElementById("outer"); |
| outer.attachShadow({ mode: "open" }).innerHTML = ` |
| <style> |
| #inner { width: 100px; height: 100px; background: purple } |
| </style> |
| <div id="inner"></div> |
| <slot></slot> |
| `; |
| |
| let button = document.querySelector("button"); |
| |
| let inner = outer.shadowRoot.getElementById("inner"); |
| let finished = new Promise(resolve => { |
| button.addEventListener("click", async function() { |
| await outer.requestFullscreen(); |
| assert_equals(outer.getRootNode().fullscreenElement, outer); |
| assert_equals(document.fullscreenElement, host); |
| |
| button.addEventListener("click", async function() { |
| await inner.requestFullscreen(); |
| assert_equals(inner.getRootNode().fullscreenElement, inner); |
| assert_equals(document.fullscreenElement, host); |
| await document.exitFullscreen(); |
| assert_equals(inner.getRootNode().fullscreenElement, null); |
| assert_equals(outer.getRootNode().fullscreenElement, outer); |
| assert_equals(document.fullscreenElement, host); |
| resolve(); |
| }, { once: true }); |
| |
| requestAnimationFrame(() => requestAnimationFrame(() => { |
| test_driver.click(button); |
| })); |
| }, { once: true }); |
| }); |
| |
| test_driver.click(button); |
| await finished; |
| }, "Exiting fullscreen from a nested shadow root works correctly."); |
| </script> |