| <!DOCTYPE HTML> |
| <meta charset="UTF-8"> |
| <title>CSS Toggles: CSSToggle and CSSToggleMap API</title> |
| <link rel="author" title="L. David Baron" href="https://dbaron.org/"> |
| <link rel="author" title="Google" href="http://www.google.com/"> |
| <link rel="help" href="https://tabatkins.github.io/css-toggle/#csstoggleevent"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="support/toggle-helpers.js"></script> |
| |
| <div id="test"></div> |
| |
| <script> |
| |
| let container = document.getElementById("test"); |
| |
| function click_while_waiting_for_togglechange(event_watcher, element) { |
| let p = event_watcher.wait_for("togglechange"); |
| element.click(); |
| return p; |
| } |
| |
| promise_test(async test => { |
| container.innerHTML = ` |
| <div id="element" style="toggle: mytoggle 2 at 1 self sticky"></div> |
| `; |
| const element = document.getElementById("element"); |
| |
| await wait_for_toggle_creation(element); |
| let toggle = element.toggles.get("mytoggle"); |
| |
| assert_equals(toggle.value, 1, "initial value of toggle"); |
| |
| const watcher = new EventWatcher(test, element, [ "togglechange" ]); |
| |
| await click_while_waiting_for_togglechange(watcher, element).then(ev => { |
| assert_equals(Object.getPrototypeOf(ev), CSSToggleEvent.prototype); |
| assert_equals(ev.toggleName, "mytoggle", "event.toggleName after first change"); |
| assert_equals(ev.toggle, toggle, "event.toggle after first change"); |
| assert_equals(toggle.value, 2, "value after first change"); |
| }); |
| |
| // Test that the event does not fire when the toggle doesn't change due to |
| // being "sticky" and stuck. EventWatcher will assert if there is an event. |
| element.click(); |
| assert_equals(toggle.value, 2, "value after second change"); |
| |
| toggle.value = 0; |
| // there should be no event; EventWatcher will assert if there is one. |
| }, "basic toggle event firing"); |
| |
| </script> |
