<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=319381 --> <head> <title>Test for Bug 319381</title> <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> </head> <body> <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=319381">Mozilla Bug 319381</a> <p id="display"></p> <div id="content" style="display: none"> <div id="t"></div> </div> <pre id="test"> <script class="testbody" type="text/javascript"> /** Test for Bug 319381 **/ function c() { return document.defaultView.getComputedStyle($('t'), ""). getPropertyValue("overflow"); } function cval() { return document.defaultView.getComputedStyle($('t'), ""). getPropertyCSSValue("overflow"); } var vals = ["visible", "hidden", "auto", "scroll"]; var mozVals = ["-moz-scrollbars-vertical", "-moz-scrollbars-horizontal"]; var i, j; for (i = 0; i < vals.length; ++i) { $('t').style.overflow = vals[i]; is($('t').style.overflow, vals[i], "Roundtrip"); is(c(), vals[i], "Simple property set"); isnot(cval(), null, "Simple property as CSSValue"); } $('t').style.overflow = mozVals[0]; is($('t').style.getPropertyValue("overflow-y"), "scroll", "Roundtrip"); is($('t').style.getPropertyValue("overflow-x"), "hidden", "Roundtrip"); is($('t').style.overflow, "", "Shorthand read directly"); is(c(), "", "Shorthand computed"); is(cval(), null, "Shorthand as CSSValue"); $('t').style.overflow = mozVals[1]; is($('t').style.getPropertyValue("overflow-x"), "scroll", "Roundtrip"); is($('t').style.getPropertyValue("overflow-y"), "hidden", "Roundtrip"); is($('t').style.overflow, "", "Shorthand read directly"); is(c(), "", "Shorthand computed"); is(cval(), null, "Shorthand as CSSValue"); for (i = 0; i < vals.length; ++i) { for (j = 0; j < vals.length; ++j) { $('t').setAttribute("style", "overflow-x: " + vals[i] + "; overflow-y: " + vals[j]); is($('t').style.getPropertyValue("overflow-x"), vals[i], "Roundtrip"); is($('t').style.getPropertyValue("overflow-y"), vals[j], "Roundtrip"); if (i == j) { is($('t').style.overflow, vals[i], "Shorthand serialization"); } else { is($('t').style.overflow, "", "Shorthand serialization"); } // "visible" overflow-x and overflow-y become "auto" in computed style if // the other direction is not also "visible". if (i == j || (vals[i] == "visible" && vals[j] == "auto")) { is(c(), vals[j], "Shorthand computation"); isnot(cval(), null, "Shorthand computation as CSSValue"); } else if (vals[j] == "visible" && vals[i] == "auto") { is(c(), vals[i], "Shorthand computation"); isnot(cval(), null, "Shorthand computation as CSSValue"); } else { is(c(), "", "Shorthand computation"); is(cval(), null, "Shorthand computation as CSSValue"); } } } </script> </pre> </body> </html>