test_style_fallback_content.html (1457B)
1 <!DOCTYPE HTML> 2 <html> 3 <!-- 4 https://bugzilla.mozilla.org/show_bug.cgi?id=806506 5 --> 6 <head> 7 <title>Test for styling fallback content</title> 8 <script type="text/javascript" src="head.js"></script> 9 <script src="/tests/SimpleTest/SimpleTest.js"></script> 10 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> 11 </head> 12 <body> 13 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=806506">Bug 806506</a> 14 <script> 15 16 SimpleTest.waitForExplicitFinish(); 17 18 var content = '<div id="grabme"></div>'; 19 createIframe(content) 20 .then((aDocument) => { 21 var iframeWin = aDocument.defaultView; 22 23 var host = aDocument.getElementById("grabme"); 24 var shadow = host.attachShadow({mode: "open"}); 25 shadow.innerHTML = '<style id="innerstyle"></style><span id="container"><slot><span id="innerspan">Hello</span></slot></span>'; 26 var innerStyle = shadow.getElementById("innerstyle"); 27 28 innerStyle.innerHTML = '#innerspan { margin-top: 10px; }'; 29 var innerSpan = shadow.getElementById("innerspan"); 30 is(iframeWin.getComputedStyle(innerSpan).getPropertyValue("margin-top"), "10px", "Default content should be style by id selector."); 31 32 innerStyle.innerHTML = '#container > slot > #innerspan { margin-top: 30px; }'; 33 is(iframeWin.getComputedStyle(innerSpan).getPropertyValue("margin-top"), "30px", "Default content should be style by child combinators."); 34 35 SimpleTest.finish(); 36 }); 37 </script> 38 </body> 39 </html>