gecko/layout/style/test/test_initial_computation.html

298 lines
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HTML

<!DOCTYPE HTML>
<html>
<!--
-->
<head>
<title>Test for computation of CSS '-moz-initial'</title>
<script type="text/javascript" src="/MochiKit/MochiKit.js"></script>
<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>
<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 '-moz-initial' **/
var gNoComputedStyle = {
"-moz-force-broken-image-icon": true,
"-moz-border-end": true, // NB: shorthand
"-moz-border-end-color": true,
"-moz-border-end-style": true,
"-moz-border-end-width": true,
"-moz-border-start": true, // NB: shorthand
"-moz-border-start-color": true,
"-moz-border-start-style": true,
"-moz-border-start-width": true,
"-moz-margin-end": true,
"-moz-margin-start": true,
"-moz-padding-end": true,
"-moz-padding-start": true,
"background-position": true,
"content": true,
"page-break-after": true,
"page-break-before": true,
"quotes": true,
"clip-path": true,
"clip-rule": true,
"color-interpolation": true,
"color-interpolation-filters": true,
"dominant-baseline": true,
"fill": true,
"fill-opacity": true,
"fill-rule": true,
"filter": true,
"flood-color": true,
"flood-opacity": true,
"marker": true, // NB: shorthand
"marker-end": true,
"marker-mid": true,
"marker-start": true,
"mask": true,
"pointer-events": true,
"shape-rendering": true,
"stop-color": true,
"stop-opacity": true,
"stroke": true,
"stroke-dasharray": true,
"stroke-dashoffset": true,
"stroke-linecap": true,
"stroke-linejoin": true,
"stroke-miterlimit": true,
"stroke-opacity": true,
"stroke-width": true,
"text-anchor": true,
"text-rendering": true,
};
function xfail_diffcomputed(property) {
return property in gNoComputedStyle;
}
var gBrokenInitial = {
// Presumably either not parsed or not implemented in nsRuleNode.
"-moz-appearance": true,
"-moz-binding": true,
"-moz-border-radius": true,
"-moz-border-radius-bottomleft": true,
"-moz-border-radius-bottomright": true,
"-moz-border-radius-topleft": true,
"-moz-border-radius-topright": true,
"-moz-box-align": true,
"-moz-box-direction": true,
"-moz-box-flex": true,
"-moz-box-orient": true,
"-moz-box-pack": true,
"-moz-box-sizing": true,
"-moz-column-count": true,
"-moz-column-gap": true,
"-moz-column-width": true,
"-moz-float-edge": true,
"-moz-image-region": true,
"-moz-outline-radius": true,
"-moz-outline-radius-bottomleft": true,
"-moz-outline-radius-bottomright": true,
"-moz-outline-radius-topleft": true,
"-moz-outline-radius-topright": true,
"-moz-user-focus": true,
"-moz-user-input": true,
"-moz-user-modify": true,
"-moz-user-select": true,
"border-bottom-color": true,
"border-collapse": true,
"border-color": true,
"border-left-color": true,
"border-right-color": true,
"border-spacing": true,
"border-top-color": true,
"bottom": true,
"caption-side": true,
"clear": true,
"direction": true,
"display": true,
"empty-cells": true,
"height": true,
"left": true,
"letter-spacing": true,
"list-style": true,
"list-style-image": true,
"list-style-position": true,
"list-style-type": true,
"margin": true,
"margin-bottom": true,
"margin-left": true,
"margin-right": true,
"margin-top": true,
"max-height": true,
"max-width": true,
"min-height": true,
"min-width": true,
"opacity": true,
"outline": true,
"outline-color": true, // XXX Why didn't this fail until I added the if (info.inherited) checks?
"outline-offset": true,
"outline-style": true,
"outline-width": true,
"overflow": true,
"padding": true,
"padding-bottom": true,
"padding-left": true,
"padding-right": true,
"padding-top": true,
"position": true,
"right": true,
"table-layout": true,
"text-decoration": true,
"text-indent": true,
"text-transform": true,
"top": true,
"unicode-bidi": true,
"vertical-align": true,
"visibility": true,
"white-space": true,
"width": true,
"word-spacing": true,
"z-index": true,
};
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;
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];
window[prereqprop] = sheet.cssRules[sheet.insertRule(":root > * {}", sheet.cssRules.length)];
}
// Get the computed value for a property. For shorthands, return the
// computed values of all the subproperties, delimited by " ; ".
function get_computed_value(cs, property)
{
var info = gCSSProperties[property];
if (!("subproperties" in info)) {
return cs.getPropertyValue(property);
}
var results = [];
for (var idx in info.subproperties) {
var subprop = info.subproperties[idx];
results.push(cs.getPropertyValue(subprop));
}
return results.join(" ; ");
}
function test_property(property)
{
var info = gCSSProperties[property];
if (info.backend_only)
return;
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);
(xfail_diffcomputed(property) ? todo_isnot : isnot)(
other_computed_n, initial_computed_n,
"should be testing with values that compute to different things " +
"for '" + property + "'");
(xfail_diffcomputed(property) ? todo_isnot : 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, "-moz-initial", "");
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,
"-moz-initial should cause initial value for '" + property + "'");
(xfail_initial(property) ? todo_is : is)(
initial_val_computed_f, initial_computed_f,
"-moz-initial 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);
}
}
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>