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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=375363
-->
<head>
<title>Test for cloning of CSS property values (including 'inherit', 'initial' and 'unset')</title>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<script type="text/javascript" src="property_database.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<p id="display"><iframe id="iframe" src="about:blank"></iframe></p>
<pre id="test">
<script class="testbody" type="text/javascript">
/** Test for cloning of CSS property values (including 'inherit', 'initial' and 'unset') **/
var gTestUnset = SpecialPowers.getBoolPref("layout.css.unset-value.enabled");
var test_queue = [];
var iframe = document.getElementById("iframe");
SimpleTest.waitForExplicitFinish();
for (var prop in gCSSProperties) {
var info = gCSSProperties[prop];
test_queue.push({ prop: prop, value: "inherit",
inherited_value: info.initial_values[0] });
test_queue.push({ prop: prop, value: "inherit",
inherited_value: info.other_values[0] });
test_queue.push({ prop: prop, value: "initial" });
if (gTestUnset) {
if (info.inherited) {
test_queue.push({ prop: prop, value: "unset",
inherited_value: info.initial_values[0] });
test_queue.push({ prop: prop, value: "unset",
inherited_value: info.other_values[0] });
} else {
test_queue.push({ prop: prop, value: "unset" });
}
}
for (var idx in info.initial_values) {
test_queue.push({ prop: prop, value: info.initial_values[idx] });
}
for (var idx in info.other_values) {
test_queue.push({ prop: prop, value: info.other_values[idx] });
}
}
test_queue.reverse();
doTest();
function doTest()
{
var sheet_data = "";
for (var idx = 0; idx < test_queue.length; ++idx) {
var current_item = test_queue[idx];
var info = gCSSProperties[current_item.prop];
sheet_data += "#parent"+idx+", #test"+idx+" { ";
for (var prereq in info.prereqs) {
sheet_data += prereq + ": " + info.prereqs[prereq] + ";";
}
sheet_data += " }";
sheet_data += "#parent"+idx+" { ";
if ("inherited_value" in current_item) {
sheet_data += current_item.prop + ": " + current_item.inherited_value;
}
sheet_data += "}";
sheet_data += "#test"+idx+" { ";
sheet_data += current_item.prop + ": " + current_item.value;
sheet_data += "}";
}
var sheet_url = "data:text/css," + escape(sheet_data);
var doc_data =
"<!DOCTYPE HTML>\n" +
"<link rel='stylesheet' type='text/css' href='" + sheet_url + "'>\n" +
"<link rel='stylesheet' type='text/css' href='" + sheet_url + "'>\n" +
"<body>\n";
for (var idx = 0; idx < test_queue.length; ++idx) {
var current_item = test_queue[idx];
if ("inherited_value" in current_item) {
doc_data += "<span id='parent"+idx+"'>";
}
doc_data += "<span id='test"+idx+"'></span>";
if ("inherited_value" in current_item) {
doc_data += "</span>";
}
}
var doc_url = "data:text/html," + escape(doc_data);
iframe.onload = iframe_loaded;
iframe.src = doc_url;
}
function iframe_loaded(event)
{
if (event.target != iframe)
return;
var start_ser = [];
var start_compute = [];
var test_cs = [];
var ifdoc = iframe.contentDocument;
for (var idx = 0; idx < test_queue.length; ++idx) {
var current_item = test_queue[idx];
var info = gCSSProperties[current_item.prop];
var test = ifdoc.getElementById("test" + idx);
var cur_cs = iframe.contentWindow.getComputedStyle(test, "");
test_cs.push(cur_cs);
var cur_ser = ifdoc.styleSheets[0].cssRules[3*idx+2].style.getPropertyValue(current_item.prop);
if (cur_ser == "") {
isnot(cur_ser, "",
"serialization should be nonempty for " +
current_item.prop + ": " + current_item.value);
}
start_ser.push(cur_ser);
var cur_compute = get_computed_value(cur_cs, current_item.prop);
if (cur_compute == "") {
isnot(cur_compute, "",
"computed value should be nonempty for " +
current_item.prop + ": " + current_item.value);
}
start_compute.push(cur_compute);
}
// In case the above access didn't force a clone already (though it
// currently does), clone the second style sheet's inner and then
// remove the first.
ifdoc.styleSheets[1].insertRule("#nonexistent { color: red }", 0);
var firstlink = ifdoc.getElementsByTagName("link")[0];
firstlink.parentNode.removeChild(firstlink);
// Force a flush
ifdoc.body.style.display="none";
var ow = ifdoc.body.offsetWidth;
ifdoc.body.style.display="";
for (var idx = 0; idx < test_queue.length; ++idx) {
var current_item = test_queue[idx];
var info = gCSSProperties[current_item.prop];
var end_ser =
ifdoc.styleSheets[0].cssRules[3*idx+3].style.getPropertyValue(current_item.prop);
is(end_ser, start_ser[idx],
"serialization should match when cloning " +
current_item.prop + ": " + current_item.value);
var end_compute = get_computed_value(test_cs[idx], current_item.prop);
// Output computed values only when the test failed.
// Computed values may be very long.
if (end_compute == start_compute[idx]) {
ok(true,
"computed values should match when cloning " +
current_item.prop + ": " + current_item.value);
} else {
is(end_compute, start_compute[idx],
"computed values should match when cloning " +
current_item.prop + ": " + current_item.value);
}
}
SimpleTest.finish();
}
</script>
</pre>
</body>
</html>
|
