gecko/layout/style/test/test_media_queries.html

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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=156716
-->
<head>
<title>Test for Bug 156716</title>
<script type="text/javascript" src="/MochiKit/MochiKit.js"></script>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body onload="run()">
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=156716">Mozilla Bug 156716</a>
<iframe id="subdoc" src="media_queries_iframe.html"></iframe>
<div id="content" style="display: none">
</div>
<pre id="test">
<script class="testbody" type="application/javascript; version=1.7">
/** Test for Bug 156716 **/
// Note that many other tests are in test_acid3_test46.html .
SimpleTest.waitForExplicitFinish();
function run() {
var subdoc = document.getElementById("subdoc").contentDocument;
var subwin = document.getElementById("subdoc").contentWindow;
var style = subdoc.getElementById("style");
var iframe_style = document.getElementById("subdoc").style;
var body_cs = subdoc.defaultView.getComputedStyle(subdoc.body, "");
function query_applies(q) {
style.setAttribute("media", q);
return body_cs.getPropertyValue("text-decoration") == "underline";
}
function should_apply(q) {
ok(query_applies(q), q + " should apply");
}
function should_not_apply(q) {
ok(!query_applies(q), q + " should not apply");
}
function todo_should_apply(q) {
todo(query_applies(q), q + " should apply");
}
function todo_should_not_apply(q) {
todo(!query_applies(q), q + " should not apply");
}
/*
* Functions to test whether a query is parseable at all. (Should not
* be used for parse errors within expressions.)
*/
var parse_test_style_element = document.createElement("style");
parse_test_style_element.type = "text/css";
parse_test_style_element.disabled = true; // for performance, hopefully
var parse_test_style_text = document.createTextNode("");
parse_test_style_element.appendChild(parse_test_style_text);
document.getElementsByTagName("head")[0]
.appendChild(parse_test_style_element);
function query_is_parseable(q) {
parse_test_style_text.data = "@media " + q + " {}";
var sheet = parse_test_style_element.sheet; // XXX yikes, not live!
if (sheet.cssRules.length == 0)
return false;
if (sheet.cssRules.length == 1 &&
sheet.cssRules[0].type == CSSRule.MEDIA_RULE)
return true;
ok(false, "unexpected result testing whether query " + q +
" is parseable");
return true; // doesn't matter, we already failed
}
function query_should_be_parseable(q) {
ok(query_is_parseable(q), "query " + q + " should be parseable");
}
function query_should_not_be_parseable(q) {
ok(!query_is_parseable(q), "query " + q + " should not be parseable");
}
/*
* Functions to test whether a single media expression is parseable.
*/
function expression_is_parseable(e) {
style.setAttribute("media", "all and (" + e + ")");
return style.sheet.media.mediaText != "not all";
}
function expression_should_be_parseable(e) {
ok(expression_is_parseable(e),
"expression " + e + " should be parseable");
}
function expression_should_not_be_parseable(e) {
ok(!expression_is_parseable(e),
"expression " + e + " should not be parseable");
}
function todo_expression_should_be_parseable(e) {
todo(expression_is_parseable(e),
"expression " + e + " should be parseable");
}
function todo_expression_should_not_be_parseable(e) {
todo(!expression_is_parseable(e),
"expression " + e + " should not be parseable");
}
// The no-type syntax doesn't mix with the not and only keywords.
query_should_be_parseable("(orientation)");
query_should_not_be_parseable("not (orientation)");
query_should_not_be_parseable("only (orientation)");
query_should_be_parseable("all and (orientation)");
query_should_be_parseable("not all and (orientation)");
query_should_be_parseable("only all and (orientation)");
for each (let feature in [ "width", "height", "device-width",
"device-height" ]) {
expression_should_be_parseable(feature);
expression_should_be_parseable(feature + ": 0");
expression_should_be_parseable(feature + ": 0px");
expression_should_be_parseable(feature + ": 0em");
expression_should_be_parseable(feature + ": -0");
expression_should_be_parseable("min-" + feature + ": -0");
expression_should_be_parseable("max-" + feature + ": -0");
expression_should_be_parseable(feature + ": -0cm");
expression_should_be_parseable(feature + ": 1px");
expression_should_be_parseable(feature + ": 0.001mm");
expression_should_be_parseable(feature + ": 100000px");
expression_should_not_be_parseable(feature + ": -1px");
expression_should_not_be_parseable("min-" + feature + ": -1px");
expression_should_not_be_parseable("max-" + feature + ": -1px");
expression_should_not_be_parseable(feature + ": -0.00001mm");
expression_should_not_be_parseable(feature + ": -100000em");
}
var content_div = document.getElementById("content");
content_div.style.font = "-moz-initial";
var em_size =
getComputedStyle(content_div, "").fontSize.match(/^(\d+)px$/)[1];
// in this test, assume the common underlying implementation is correct
let width_val = 117; // pick two not-too-round numbers
let height_val = 76;
iframe_style.width = width_val + "px";
iframe_style.height = height_val + "px";
let device_width = window.screen.width;
let device_height = window.screen.height;
for (let [feature, value] in
Iterator({ "width": width_val,
"height": height_val,
"device-width": device_width,
"device-height": device_height })) {
should_apply("all and (" + feature + ": " + value + "px)");
should_not_apply("all and (" + feature + ": " + (value + 1) + "px)");
should_not_apply("all and (" + feature + ": " + (value - 1) + "px)");
should_apply("all and (min-" + feature + ": " + value + "px)");
should_not_apply("all and (min-" + feature + ": " + (value + 1) + "px)");
should_apply("all and (min-" + feature + ": " + (value - 1) + "px)");
should_apply("all and (max-" + feature + ": " + value + "px)");
should_apply("all and (max-" + feature + ": " + (value + 1) + "px)");
should_not_apply("all and (max-" + feature + ": " + (value - 1) + "px)");
should_not_apply("all and (min-" + feature + ": " +
(Math.ceil(value/em_size) + 1) + "em)");
should_apply("all and (min-" + feature + ": " +
(Math.floor(value/em_size) - 1) + "em)");
should_apply("all and (max-" + feature + ": " +
(Math.ceil(value/em_size) + 1) + "em)");
should_not_apply("all and (max-" + feature + ": " +
(Math.floor(value/em_size) - 1) + "em)");
}
// FIXME: The TODOs in this section are because the spec is still a
// bit unclear here. Until I'm sure that the spec is really asking
// for the more complex implementation, I'm going to stick with the
// simpler one. See
// http://lists.w3.org/Archives/Public/www-style/2008Jun/0212.html
iframe_style.width = "0";
should_apply("all and (height)");
todo_should_not_apply("all and (width)");
iframe_style.height = "0";
todo_should_not_apply("all and (height)");
todo_should_not_apply("all and (width)");
should_apply("all and (device-height)");
should_apply("all and (device-width)");
iframe_style.width = width_val + "px";
todo_should_not_apply("all and (height)");
should_apply("all and (width)");
iframe_style.height = height_val + "px";
should_apply("all and (height)");
should_apply("all and (width)");
// ratio that reduces to 59/40
iframe_style.width = "236px";
iframe_style.height = "160px";
expression_should_be_parseable("orientation");
expression_should_be_parseable("orientation: portrait");
expression_should_be_parseable("orientation: landscape");
expression_should_not_be_parseable("min-orientation");
expression_should_not_be_parseable("min-orientation: portrait");
expression_should_not_be_parseable("min-orientation: landscape");
expression_should_not_be_parseable("max-orientation");
expression_should_not_be_parseable("max-orientation: portrait");
expression_should_not_be_parseable("max-orientation: landscape");
should_apply("(orientation)");
should_apply("(orientation: landscape)");
should_not_apply("(orientation: portrait)");
should_apply("not all and (orientation: portrait)");
// ratio that reduces to 59/80
iframe_style.height = "320px";
should_apply("(orientation)");
should_not_apply("(orientation: landscape)");
should_apply("not all and (orientation: landscape)");
should_apply("(orientation: portrait)");
should_apply("(aspect-ratio: 59/80)");
should_not_apply("(aspect-ratio: 58/80)");
should_not_apply("(aspect-ratio: 59/81)");
should_not_apply("(aspect-ratio: 60/80)");
should_not_apply("(aspect-ratio: 59/79)");
should_apply("(aspect-ratio: 177/240)");
should_apply("(aspect-ratio: 413/560)");
should_apply("(aspect-ratio: 5900/8000)");
should_not_apply("(aspect-ratio: 5901/8000)");
should_not_apply("(aspect-ratio: 5899/8000)");
should_not_apply("(aspect-ratio: 5900/8001)");
should_not_apply("(aspect-ratio: 5900/7999)");
should_apply("(min-aspect-ratio: 59/80)");
should_apply("(min-aspect-ratio: 58/80)");
should_apply("(min-aspect-ratio: 59/81)");
should_not_apply("(min-aspect-ratio: 60/80)");
should_not_apply("(min-aspect-ratio: 59/79)");
should_apply("(max-aspect-ratio: 59/80)");
should_not_apply("(max-aspect-ratio: 58/80)");
should_not_apply("(max-aspect-ratio: 59/81)");
should_apply("(max-aspect-ratio: 60/80)");
should_apply("(max-aspect-ratio: 59/79)");
let real_dar = device_width + "/" + device_height;
let high_dar_1 = (device_width + 1) + "/" + device_height;
let high_dar_2 = device_width + "/" + (device_height - 1);
let low_dar_1 = (device_width - 1) + "/" + device_height;
let low_dar_2 = device_width + "/" + (device_height + 1);
should_apply("(device-aspect-ratio: " + real_dar + ")");
should_apply("not all and (device-aspect-ratio: " + high_dar_1 + ")");
should_not_apply("all and (device-aspect-ratio: " + high_dar_2 + ")");
should_not_apply("all and (device-aspect-ratio: " + low_dar_1 + ")");
should_apply("not all and (device-aspect-ratio: " + low_dar_2 + ")");
should_apply("(min-device-aspect-ratio: " + real_dar + ")");
should_not_apply("all and (min-device-aspect-ratio: " + high_dar_1 + ")");
should_apply("not all and (min-device-aspect-ratio: " + high_dar_2 + ")");
should_not_apply("not all and (min-device-aspect-ratio: " + low_dar_1 + ")");
should_apply("all and (min-device-aspect-ratio: " + low_dar_2 + ")");
should_apply("all and (max-device-aspect-ratio: " + real_dar + ")");
should_apply("(max-device-aspect-ratio: " + high_dar_1 + ")");
should_apply("(max-device-aspect-ratio: " + high_dar_2 + ")");
should_not_apply("all and (max-device-aspect-ratio: " + low_dar_1 + ")");
should_apply("not all and (max-device-aspect-ratio: " + low_dar_2 + ")");
for each (let feature in [ "max-aspect-ratio", "device-aspect-ratio" ]) {
expression_should_be_parseable(feature + ": 1/1");
expression_should_be_parseable(feature + ": 1 /1");
expression_should_be_parseable(feature + ": 1 / \t\n1");
expression_should_be_parseable(feature + ": 1/\r1");
expression_should_not_be_parseable(feature + ": 1");
expression_should_not_be_parseable(feature + ": 0.5");
expression_should_not_be_parseable(feature + ": 1.0/1");
expression_should_not_be_parseable(feature + ": 1/1.0");
expression_should_not_be_parseable(feature + ": 1.0/1.0");
expression_should_not_be_parseable(feature + ": 0/1");
expression_should_not_be_parseable(feature + ": 1/0");
expression_should_not_be_parseable(feature + ": 0/0");
expression_should_not_be_parseable(feature + ": -1/1");
expression_should_not_be_parseable(feature + ": 1/-1");
expression_should_not_be_parseable(feature + ": -1/-1");
}
var is_monochrome = query_applies("all and (min-monochrome: 1)");
var is_color = query_applies("all and (min-color: 1)");
isnot(is_monochrome, is_color, "should be either monochrome or color");
function depth_query(prefix, depth) {
return "all and (" + prefix + (is_color ? "color" : "monochrome") +
":" + depth + ")";
}
var depth = 0;
do {
if (depth > 50) {
ok(false, "breaking from loop, depth > 50");
break;
}
} while (query_applies(depth_query("min-", ++depth)));
--depth;
should_apply(depth_query("", depth));
should_not_apply(depth_query("", depth - 1));
should_not_apply(depth_query("", depth + 1));
should_apply(depth_query("max-", depth));
should_not_apply(depth_query("max-", depth - 1));
should_apply(depth_query("max-", depth + 1));
(is_color ? should_apply : should_not_apply)("all and (color)");
(is_color ? should_apply : should_not_apply)("all and (max-color)");
(is_color ? should_apply : should_not_apply)("all and (min-color)");
(is_color ? should_not_apply : should_apply)("all and (monochrome)");
(is_color ? should_not_apply : should_apply)("all and (max-monochrome)");
(is_color ? should_not_apply : should_apply)("all and (min-monochrome)");
(is_color ? should_apply : should_not_apply)("not all and (monochrome)");
(is_color ? should_apply : should_not_apply)("not all and (max-monochrome)");
(is_color ? should_apply : should_not_apply)("not all and (min-monochrome)");
(is_color ? should_not_apply : should_apply)("not all and (color)");
(is_color ? should_not_apply : should_apply)("not all and (max-color)");
(is_color ? should_not_apply : should_apply)("not all and (min-color)");
(is_color ? should_apply : should_not_apply)("only all and (color)");
(is_color ? should_apply : should_not_apply)("only all and (max-color)");
(is_color ? should_apply : should_not_apply)("only all and (min-color)");
(is_color ? should_not_apply : should_apply)("only all and (monochrome)");
(is_color ? should_not_apply : should_apply)("only all and (max-monochrome)");
(is_color ? should_not_apply : should_apply)("only all and (min-monochrome)");
for each (let feature in [ "color", "min-monochrome", "max-color-index" ]) {
expression_should_be_parseable(feature + ": 1");
expression_should_be_parseable(feature + ": 327");
expression_should_be_parseable(feature + ": 0");
expression_should_not_be_parseable(feature + ": 1.0");
expression_should_not_be_parseable(feature + ": -1");
expression_should_not_be_parseable(feature + ": 1/1");
}
// Presume that we never support indexed color (at least not usefully
// enough to call it indexed color).
should_apply("(color-index: 0)");
should_not_apply("(color-index: 1)");
should_apply("(min-color-index: 0)");
should_not_apply("(min-color-index: 1)");
should_apply("(max-color-index: 0)");
should_apply("(max-color-index: 1)");
should_apply("(max-color-index: 157)");
for each (let feature in [ "resolution", "min-resolution",
"max-resolution" ]) {
expression_should_be_parseable(feature + ": 3dpi");
expression_should_be_parseable(feature + ":3dpi");
expression_should_not_be_parseable(feature + ": 3.0dpi");
expression_should_not_be_parseable(feature + ": 3.4dpi");
expression_should_be_parseable(feature + "\t: 120dpcm");
expression_should_not_be_parseable(feature + ": 0dpi");
expression_should_not_be_parseable(feature + ": -3dpi");
}
// Find the resolution using max-resolution
let resolution = 0;
do {
++resolution;
if (resolution > 10000) {
ok(false, "resolution greater than 10000dpi???");
break;
}
} while (!query_applies("(max-resolution: " + resolution + "dpi)"));
// resolution should now be Math.ceil() of the actual resolution.
let dpi_high;
let dpi_low = resolution - 1;
if (query_applies("(min-resolution: " + resolution + "dpi)")) {
// It's exact!
should_apply("(resolution: " + resolution + "dpi)");
should_not_apply("(resolution: " + (resolution + 1) + "dpi)");
should_not_apply("(resolution: " + (resolution - 1) + "dpi)");
dpi_high = resolution + 1;
} else {
// We have no way to test resolution applying since it need not be
// an integer.
should_not_apply("(resolution: " + resolution + "dpi)");
should_not_apply("(resolution: " + (resolution - 1) + "dpi)");
dpi_high = resolution;
}
should_apply("(min-resolution: " + dpi_low + "dpi)");
should_not_apply("not all and (min-resolution: " + dpi_low + "dpi)");
should_apply("not all and (min-resolution: " + dpi_high + "dpi)");
should_not_apply("all and (min-resolution: " + dpi_high + "dpi)");
// Test dpcm units based on what we computed in dpi.
let dpcm_high = Math.ceil(dpi_high / 2.54);
let dpcm_low = Math.floor(dpi_low / 2.54);
should_apply("(min-resolution: " + dpcm_low + "dpcm)");
should_apply("(max-resolution: " + dpcm_high + "dpcm)");
should_not_apply("(max-resolution: " + dpcm_low + "dpcm)");
should_apply("not all and (min-resolution: " + dpcm_high + "dpcm)");
expression_should_be_parseable("scan");
expression_should_be_parseable("scan: progressive");
expression_should_be_parseable("scan:interlace");
expression_should_not_be_parseable("min-scan:interlace");
expression_should_not_be_parseable("scan: 1");
expression_should_not_be_parseable("max-scan");
// Assume we don't support tv devices.
should_not_apply("(scan)");
should_not_apply("(scan: progressive)");
should_not_apply("(scan: interlace)");
should_apply("not all and (scan)");
should_apply("not all and (scan: progressive)");
should_apply("not all and (scan: interlace)");
expression_should_be_parseable("grid");
expression_should_be_parseable("grid: 0");
expression_should_be_parseable("grid: 1");
expression_should_be_parseable("grid: 1");
expression_should_not_be_parseable("min-grid");
expression_should_not_be_parseable("max-grid: 1");
// FIXME: Mark these as todo since the spec isn't clear:
// http://lists.w3.org/Archives/Public/www-style/2008Jun/0214.html
todo_expression_should_not_be_parseable("grid: 2");
todo_expression_should_be_parseable("grid: -1");
// Assume we don't support grid devices
should_not_apply("(grid)");
should_apply("(grid: 0)");
should_not_apply("(grid: 1)");
should_not_apply("(grid: 2)");
should_not_apply("(grid: -1)");
SimpleTest.finish();
}
</script>
</pre>
</body>
</html>