| <!DOCTYPE html> |
| <link rel="help" href="https://github.com/fallaciousreasoning/backbutton-mediaquery/blob/master/explainer.md" /> |
| <script type="text/javascript" src="/resources/testharness.js"></script> |
| <script type="text/javascript" src="/resources/testharnessreport.js"></script> |
| <script type="text/javascript" src="resources/matchmedia-utils.js"></script> |
| <script> |
| query_should_be_css_parseable("(navigation-controls)"); |
| query_should_be_css_parseable("(navigation-controls: none)"); |
| query_should_be_css_parseable("(navigation-controls: back-button)"); |
| query_should_not_be_css_parseable("(navigation-controls: none back-button)"); |
| query_should_not_be_css_parseable("(navigation-controls: back-button/none)"); |
| query_should_be_js_parseable("(navigation-controls)"); |
| query_should_be_js_parseable("(navigation-controls: none)"); |
| query_should_be_js_parseable("(navigation-controls: back-button)"); |
| query_should_not_be_js_parseable("(navigation-controls: none back-button)"); |
| query_should_not_be_js_parseable("(navigation-controls: back-button/none)"); |
| test(() => { |
| let booleanContext = window.matchMedia("(navigation-controls)"); |
| let none = window.matchMedia("(navigation-controls: none)"); |
| assert_equals(booleanContext.matches, !none.matches); |
| }, "Check that none evaluates to false in the boolean context"); |
| </script> |
