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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /layout/style/test/test_initial_computation.html
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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+<!DOCTYPE HTML>
+<html>
+<!--
+-->
+<head>
+ <title>Test for computation of CSS 'initial' on all properties and 'unset' on reset properties</title>
+ <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+ <script type="text/javascript" src="property_database.js"></script>
+ <style type="text/css" id="stylesheet"></style>
+ <style type="text/css">
+ /* For 'width', 'height', etc., need a constant size container. */
+ #display { width: 500px; height: 200px }
+ </style>
+ <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+ <script type="text/javascript">
+ SimpleTest.waitForExplicitFinish();
+
+ var load_count = 0;
+ function load_done() {
+ if (++load_count == 3)
+ run_tests();
+ }
+ </script>
+</head>
+<body>
+<p id="display"><span><span id="elementf"></span></span>
+<iframe id="unstyledn" src="unstyled.xml" height="10" width="10" onload="load_done()"></iframe>
+<iframe id="unstyledf" src="unstyled-frame.xml" height="10" width="10" onload="load_done()"></iframe>
+</p>
+<div id="content" style="display: none">
+
+<div><span id="elementn"></span></div>
+
+
+</div>
+<pre id="test">
+<script class="testbody" type="text/javascript">
+
+/** Test for computation of CSS 'initial' on all properties and 'unset' on
+ reset properties **/
+
+var gBrokenInitial = {
+};
+
+function xfail_initial(property) {
+ return property in gBrokenInitial;
+}
+
+var gElementN = document.getElementById("elementn");
+var gElementF = document.getElementById("elementf");
+var gStyleSheet = document.getElementById("stylesheet").sheet;
+var gRule1 = gStyleSheet.cssRules[gStyleSheet.insertRule("#elementn, #elementf {}", gStyleSheet.cssRules.length)];
+var gRule2 = gStyleSheet.cssRules[gStyleSheet.insertRule("#elementn, #elementf {}", gStyleSheet.cssRules.length)];
+
+var gInitialValuesN;
+var gInitialValuesF;
+var gInitialPrereqsRuleN;
+var gInitialPrereqsRuleF;
+
+var gTestUnset = SpecialPowers.getBoolPref("layout.css.unset-value.enabled");
+
+function setup_initial_values(id, ivalprop, prereqprop) {
+ var iframe = document.getElementById(id);
+ window[ivalprop] = iframe.contentWindow.getComputedStyle(
+ iframe.contentDocument.documentElement.firstChild, "");
+ var sheet = iframe.contentDocument.styleSheets[0];
+ // For 'width', 'height', etc., need a constant size container.
+ sheet.insertRule(":root { height: 200px; width: 500px }", sheet.cssRules.length);
+
+ window[prereqprop] = sheet.cssRules[sheet.insertRule(":root > * {}", sheet.cssRules.length)];
+}
+
+function test_property(property)
+{
+ var info = gCSSProperties[property];
+
+ var keywords = ["initial"];
+ if (!info.inherited && gTestUnset)
+ keywords.push("unset");
+
+ keywords.forEach(function(keyword) {
+ if ("prerequisites" in info) {
+ var prereqs = info.prerequisites;
+ for (var prereq in prereqs) {
+ gRule1.style.setProperty(prereq, prereqs[prereq], "");
+ gInitialPrereqsRuleN.style.setProperty(prereq, prereqs[prereq], "");
+ gInitialPrereqsRuleF.style.setProperty(prereq, prereqs[prereq], "");
+ }
+ }
+ if (info.inherited) {
+ gElementN.parentNode.style.setProperty(property, info.other_values[0], "");
+ gElementF.parentNode.style.setProperty(property, info.other_values[0], "");
+ }
+
+ var initial_computed_n = get_computed_value(gInitialValuesN, property);
+ var initial_computed_f = get_computed_value(gInitialValuesF, property);
+ gRule1.style.setProperty(property, info.other_values[0], "");
+ var other_computed_n = get_computed_value(getComputedStyle(gElementN, ""), property);
+ var other_computed_f = get_computed_value(getComputedStyle(gElementF, ""), property);
+ isnot(other_computed_n, initial_computed_n,
+ "should be testing with values that compute to different things " +
+ "for '" + property + "'");
+ isnot(other_computed_f, initial_computed_f,
+ "should be testing with values that compute to different things " +
+ "for '" + property + "'");
+ // It's important (given the current design of nsRuleNode) that we're
+ // modifying the most specific rule that matches the element, and that
+ // we've already requested style while that rule was empty. This
+ // means we'll have a cached aStartStruct from the parent in the rule
+ // tree (caching the "other" value), so we'll make sure we don't get
+ // the initial value from the luck of default-initialization.
+ // This means that it's important that we set the prereqs on
+ // gRule1.style rather than on gElement.style.
+ gRule2.style.setProperty(property, keyword, "");
+ var initial_val_computed_n = get_computed_value(getComputedStyle(gElementN, ""), property);
+ var initial_val_computed_f = get_computed_value(getComputedStyle(gElementF, ""), property);
+ (xfail_initial(property) ? todo_is : is)(
+ initial_val_computed_n, initial_computed_n,
+ keyword + " should cause initial value for '" + property + "'");
+ (xfail_initial(property) ? todo_is : is)(
+ initial_val_computed_f, initial_computed_f,
+ keyword + " should cause initial value for '" + property + "'");
+ gRule1.style.removeProperty(property);
+ gRule2.style.removeProperty(property);
+
+ if ("prerequisites" in info) {
+ var prereqs = info.prerequisites;
+ for (var prereq in prereqs) {
+ gRule1.style.removeProperty(prereq);
+ gInitialPrereqsRuleN.style.removeProperty(prereq);
+ gInitialPrereqsRuleF.style.removeProperty(prereq);
+ }
+ }
+ if (info.inherited) {
+ gElementN.parentNode.style.removeProperty(property);
+ gElementF.parentNode.style.removeProperty(property);
+ }
+
+ // FIXME: Something (maybe with the -moz-binding values in
+ // test_value_computation.html, but may as well do it here to match)
+ // causes gElementF's frame to get lost. Force it to get recreated
+ // after each property.
+ gElementF.parentNode.style.display = "none";
+ get_computed_value(getComputedStyle(gElementF, ""), "width");
+ gElementF.parentNode.style.display = "";
+ get_computed_value(getComputedStyle(gElementF, ""), "width");
+ });
+}
+
+function run_tests() {
+ setup_initial_values("unstyledn", "gInitialValuesN", "gInitialPrereqsRuleN");
+ setup_initial_values("unstyledf", "gInitialValuesF", "gInitialPrereqsRuleF");
+ for (var prop in gCSSProperties)
+ test_property(prop);
+ SimpleTest.finish();
+}
+
+load_done();
+
+</script>
+</pre>
+</body>
+</html>
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