<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=557726 --> <head> <title>Test for Bug 557726</title> <script src="/tests/SimpleTest/SimpleTest.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> <style id="pseudo-style"> #div1 { color: blue; } #div1:first-letter { font-weight: bold; } #div1:before { content: '"'; } #div1:after { content: '"'; } #div1:after, #div1:before { color: red; } ::selection { background: pink; } ::highlight(search) { background: yellow; } ::highlight(whatever) { background: tomato; } </style> </head> <body> <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=557726">Mozilla Bug 557726</a> <div id="div1"> text with ::before, ::after, and ::first-letter pseudo-elements </div> <script type="application/javascript"> /** Test for Bug 557726 **/ const InspectorUtils = SpecialPowers.InspectorUtils; function getSelectors (rules) { var styleElement = document.getElementById("pseudo-style"); var selectors = []; for (var i = 0; i < rules.length; i++) { var rule = rules[i]; if (SpecialPowers.unwrap(rule.parentStyleSheet.ownerNode) == styleElement) // no user agent rules selectors.push(rule.selectorText); } return selectors; } var div = document.getElementById("div1"); /* empty or missing pseudo-element argument */ var selectors = getSelectors(InspectorUtils.getCSSStyleRules(div)); is(selectors.length, 1, "psuedo-element argument should be optional"); is(selectors[0], "#div1", "should only have the non-pseudo element rule"); selectors = getSelectors(InspectorUtils.getCSSStyleRules(div, "")); is(selectors.length, 1, "pseudo-element argument can be empty string"); is(selectors[0], "#div1", "should only have the non pseudo-element rule"); /* invalid pseudo-element argument */ var rules = InspectorUtils.getCSSStyleRules(div, "not a valid pseudo element"); is(rules.length, 0, "invalid pseudo-element returns no rules"); /* valid pseudo-element argument */ selectors = getSelectors(InspectorUtils.getCSSStyleRules(div, ":first-letter")); is(selectors.length, 1, "pseudo-element argument can be used"); is(selectors[0], "#div1::first-letter", "should only have the ::first-letter rule"); selectors = getSelectors(InspectorUtils.getCSSStyleRules(div, ":before")); is(selectors.length, 2, "::before pseudo-element has two matching rules"); isnot(selectors.indexOf("#div1::after, #div1::before"), -1, "fetched rule for ::before") isnot(selectors.indexOf("#div1::before"), -1, "fetched rule for ::before") selectors = getSelectors(InspectorUtils.getCSSStyleRules(div, ":first-line")); is(selectors.length, 0, "valid pseudo-element but no matching rules"); selectors = getSelectors(InspectorUtils.getCSSStyleRules(div, "::selection")); is(selectors.length, 1, "::selection pseudo-element has a matching rule"); is(selectors[0], "::selection", "fetched rule for ::selection"); const range = new Range(); range.setStart(div.firstChild, 10); range.setEnd(div.firstChild, 20); const highlight = new Highlight(range); CSS.highlights.set("search", highlight); selectors = getSelectors(InspectorUtils.getCSSStyleRules(div, "::highlight(search)")); is(selectors.length, 1, "::highlight(search) pseudo-element has a matching rule"); is(selectors[0], "::highlight(search)", "fetched ::highlight(search) rule"); selectors = getSelectors(InspectorUtils.getCSSStyleRules(div, "::highlight(whatever)")); is(selectors.length, 1, "::highlight(whatever) pseudo-element has a matching rule"); is(selectors[0], "::highlight(whatever)", "fetched ::highlight(whatever) rule"); </script> </pre> </body> </html>