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-rw-r--r--layout/style/test/bug453896_iframe.html66
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+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
+ "http://www.w3.org/TR/html4/strict.dtd">
+<html lang="en-US">
+<head>
+ <title>Bug 453896 Test middle frame</title>
+ <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+ <meta http-equiv="Content-Style-Type" content="text/css">
+ <script type="application/javascript; version=1.7">
+
+function run(test_window)
+{
+ 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) {
+ test_window.ok(query_applies(q), q + " should apply");
+ }
+
+ function should_not_apply(q) {
+ test_window.ok(!query_applies(q), q + " should not apply");
+ }
+
+ // in this test, assume the common underlying implementation is correct
+ let width_val = 157; // pick two not-too-round numbers
+ let height_val = 182;
+ iframe_style.width = width_val + "px";
+ iframe_style.height = height_val + "px";
+ for (let [feature, value] of
+ Object.entries({ "width": width_val, "height": height_val })) {
+ 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)");
+ }
+
+ iframe_style.width = "0";
+ should_apply("all and (height)");
+ should_not_apply("all and (width)");
+ iframe_style.height = "0";
+ should_not_apply("all and (height)");
+ should_not_apply("all and (width)");
+ should_apply("all and (device-height)");
+ should_apply("all and (device-width)");
+ iframe_style.width = width_val + "px";
+ 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)");
+}
+
+ </script>
+</head>
+<body>
+
+<iframe id="subdoc" src="media_queries_iframe.html"></iframe>
+
+</body>
+</html>