layout/style/test/test_media_queries.html

   1 <!DOCTYPE HTML>
   2 <html>
   3 <!--
   4 https://bugzilla.mozilla.org/show_bug.cgi?id=156716
   5 -->
   6 <head>
   7   <title>Test for Bug 156716</title>
   8   <script type="text/javascript" src="/MochiKit/MochiKit.js"></script>
   9   <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  10   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
  11 </head>
  12 <body onload="run()">
  13 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=156716">Mozilla Bug 156716</a>
  14 <iframe id="subdoc" src="media_queries_iframe.html"></iframe>
  15 <div id="content" style="display: none">
  16
  17 </div>
  18 <pre id="test">
  19 <script class="testbody" type="application/javascript; version=1.7">
  20
  21 /** Test for Bug 156716 **/
  22
  23 // Note that many other tests are in test_acid3_test46.html .
  24
  25 SimpleTest.waitForExplicitFinish();
  26
  27 function run() {
  28   var subdoc = document.getElementById("subdoc").contentDocument;
  29   var subwin = document.getElementById("subdoc").contentWindow;
  30   var style = subdoc.getElementById("style");
  31   var iframe_style = document.getElementById("subdoc").style;
  32   var body_cs = subdoc.defaultView.getComputedStyle(subdoc.body, "");
  33
  34   function query_applies(q) {
  35     style.setAttribute("media", q);
  36     return body_cs.getPropertyValue("text-decoration") == "underline";
  37   }
  38
  39   function should_apply(q) {
  40     ok(query_applies(q), q + " should apply");
  41   }
  42
  43   function should_not_apply(q) {
  44     ok(!query_applies(q), q + " should not apply");
  45   }
  46
  47   /*
  48    * Functions to test whether a query is parseable at all.  (Should not
  49    * be used for parse errors within expressions.)
  50    */
  51   var parse_test_style_element = document.createElement("style");
  52   parse_test_style_element.type = "text/css";
  53   parse_test_style_element.disabled = true; // for performance, hopefully
  54   var parse_test_style_text = document.createTextNode("");
  55   parse_test_style_element.appendChild(parse_test_style_text);
  56   document.getElementsByTagName("head")[0]
  57     .appendChild(parse_test_style_element);
  58
  59   function query_is_parseable(q) {
  60     parse_test_style_text.data = "@media screen, " + q + " {}";
  61     var sheet = parse_test_style_element.sheet; // XXX yikes, not live!
  62     if (sheet.cssRules.length == 1 &&
  63         sheet.cssRules[0].type == CSSRule.MEDIA_RULE)
  64       return sheet.cssRules[0].media.mediaText != "screen";
  65     ok(false, "unexpected result testing whether query " + q +
  66               " is parseable");
  67     return true; // doesn't matter, we already failed
  68   }
  69
  70   function query_should_be_parseable(q) {
  71     ok(query_is_parseable(q), "query " + q + " should be parseable");
  72   }
  73
  74   function query_should_not_be_parseable(q) {
  75     ok(!query_is_parseable(q), "query " + q + " should not be parseable");
  76   }
  77
  78   /*
  79    * Functions to test whether a single media expression is parseable.
  80    */
  81   function expression_is_parseable(e) {
  82     style.setAttribute("media", "all and (" + e + ")");
  83     return style.sheet.media.mediaText != "not all";
  84   }
  85
  86   function expression_should_be_parseable(e) {
  87     ok(expression_is_parseable(e),
  88        "expression " + e + " should be parseable");
  89   }
  90
  91   function expression_should_not_be_parseable(e) {
  92     ok(!expression_is_parseable(e),
  93        "expression " + e + " should not be parseable");
  94   }
  95
  96   // The no-type syntax doesn't mix with the not and only keywords.
  97   query_should_be_parseable("(orientation)");
  98   query_should_not_be_parseable("not (orientation)");
  99   query_should_not_be_parseable("only (orientation)");
 100   query_should_be_parseable("all and (orientation)");
 101   query_should_be_parseable("not all and (orientation)");
 102   query_should_be_parseable("only all and (orientation)");
 103
 104   for each (let feature in [ "width", "height", "device-width",
 105                              "device-height" ]) {
 106     expression_should_be_parseable(feature);
 107     expression_should_be_parseable(feature + ": 0");
 108     expression_should_be_parseable(feature + ": 0px");
 109     expression_should_be_parseable(feature + ": 0em");
 110     expression_should_be_parseable(feature + ": -0");
 111     expression_should_be_parseable("min-" + feature + ": -0");
 112     expression_should_be_parseable("max-" + feature + ": -0");
 113     expression_should_be_parseable(feature + ": -0cm");
 114     expression_should_be_parseable(feature + ": 1px");
 115     expression_should_be_parseable(feature + ": 0.001mm");
 116     expression_should_be_parseable(feature + ": 100000px");
 117     expression_should_not_be_parseable(feature + ": -1px");
 118     expression_should_not_be_parseable("min-" + feature + ": -1px");
 119     expression_should_not_be_parseable("max-" + feature + ": -1px");
 120     expression_should_not_be_parseable(feature + ": -0.00001mm");
 121     expression_should_not_be_parseable(feature + ": -100000em");
 122     expression_should_not_be_parseable("min-" + feature);
 123     expression_should_not_be_parseable("max-" + feature);
 124   }
 125
 126   var content_div = document.getElementById("content");
 127   content_div.style.font = "-moz-initial";
 128   var em_size =
 129     getComputedStyle(content_div, "").fontSize.match(/^(\d+)px$/)[1];
 130
 131   // in this test, assume the common underlying implementation is correct
 132   let width_val = 117; // pick two not-too-round numbers
 133   let height_val = 76;
 134   iframe_style.width = width_val + "px";
 135   iframe_style.height = height_val + "px";
 136   let device_width = window.screen.width;
 137   let device_height = window.screen.height;
 138   for (let [feature, value] in
 139          Iterator({ "width": width_val,
 140                     "height": height_val,
 141                     "device-width": device_width,
 142                     "device-height": device_height })) {
 143     should_apply("all and (" + feature + ": " + value + "px)");
 144     should_not_apply("all and (" + feature + ": " + (value + 1) + "px)");
 145     should_not_apply("all and (" + feature + ": " + (value - 1) + "px)");
 146     should_apply("all and (min-" + feature + ": " + value + "px)");
 147     should_not_apply("all and (min-" + feature + ": " + (value + 1) + "px)");
 148     should_apply("all and (min-" + feature + ": " + (value - 1) + "px)");
 149     should_apply("all and (max-" + feature + ": " + value + "px)");
 150     should_apply("all and (max-" + feature + ": " + (value + 1) + "px)");
 151     should_not_apply("all and (max-" + feature + ": " + (value - 1) + "px)");
 152     should_not_apply("all and (min-" + feature + ": " +
 153                      (Math.ceil(value/em_size) + 1) + "em)");
 154     should_apply("all and (min-" + feature + ": " +
 155                  (Math.floor(value/em_size) - 1) + "em)");
 156     should_apply("all and (max-" + feature + ": " +
 157                  (Math.ceil(value/em_size) + 1) + "em)");
 158     should_not_apply("all and (max-" + feature + ": " +
 159                      (Math.floor(value/em_size) - 1) + "em)");
 160   }
 161
 162   iframe_style.width = "0";
 163   should_apply("all and (height)");
 164   should_not_apply("all and (width)");
 165   iframe_style.height = "0";
 166   should_not_apply("all and (height)");
 167   should_not_apply("all and (width)");
 168   should_apply("all and (device-height)");
 169   should_apply("all and (device-width)");
 170   iframe_style.width = width_val + "px";
 171   should_not_apply("all and (height)");
 172   should_apply("all and (width)");
 173   iframe_style.height = height_val + "px";
 174   should_apply("all and (height)");
 175   should_apply("all and (width)");
 176
 177   // ratio that reduces to 59/40
 178   iframe_style.width = "236px";
 179   iframe_style.height = "160px";
 180   expression_should_be_parseable("orientation");
 181   expression_should_be_parseable("orientation: portrait");
 182   expression_should_be_parseable("orientation: landscape");
 183   expression_should_not_be_parseable("min-orientation");
 184   expression_should_not_be_parseable("min-orientation: portrait");
 185   expression_should_not_be_parseable("min-orientation: landscape");
 186   expression_should_not_be_parseable("max-orientation");
 187   expression_should_not_be_parseable("max-orientation: portrait");
 188   expression_should_not_be_parseable("max-orientation: landscape");
 189   should_apply("(orientation)");
 190   should_apply("(orientation: landscape)");
 191   should_not_apply("(orientation: portrait)");
 192   should_apply("not all and (orientation: portrait)");
 193   // ratio that reduces to 59/80
 194   iframe_style.height = "320px";
 195   should_apply("(orientation)");
 196   should_not_apply("(orientation: landscape)");
 197   should_apply("not all and (orientation: landscape)");
 198   should_apply("(orientation: portrait)");
 199
 200   should_apply("(aspect-ratio: 59/80)");
 201   should_not_apply("(aspect-ratio: 58/80)");
 202   should_not_apply("(aspect-ratio: 59/81)");
 203   should_not_apply("(aspect-ratio: 60/80)");
 204   should_not_apply("(aspect-ratio: 59/79)");
 205   should_apply("(aspect-ratio: 177/240)");
 206   should_apply("(aspect-ratio: 413/560)");
 207   should_apply("(aspect-ratio: 5900/8000)");
 208   should_not_apply("(aspect-ratio: 5901/8000)");
 209   should_not_apply("(aspect-ratio: 5899/8000)");
 210   should_not_apply("(aspect-ratio: 5900/8001)");
 211   should_not_apply("(aspect-ratio: 5900/7999)");
 212   should_apply("(aspect-ratio)");
 213
 214   should_apply("(min-aspect-ratio: 59/80)");
 215   should_apply("(min-aspect-ratio: 58/80)");
 216   should_apply("(min-aspect-ratio: 59/81)");
 217   should_not_apply("(min-aspect-ratio: 60/80)");
 218   should_not_apply("(min-aspect-ratio: 59/79)");
 219   expression_should_not_be_parseable("min-aspect-ratio");
 220
 221   should_apply("(max-aspect-ratio: 59/80)");
 222   should_not_apply("(max-aspect-ratio: 58/80)");
 223   should_not_apply("(max-aspect-ratio: 59/81)");
 224   should_apply("(max-aspect-ratio: 60/80)");
 225   should_apply("(max-aspect-ratio: 59/79)");
 226   expression_should_not_be_parseable("max-aspect-ratio");
 227
 228   let real_dar = device_width + "/" + device_height;
 229   let high_dar_1 = (device_width + 1) + "/" + device_height;
 230   let high_dar_2 = device_width + "/" + (device_height - 1);
 231   let low_dar_1 = (device_width - 1) + "/" + device_height;
 232   let low_dar_2 = device_width + "/" + (device_height + 1);
 233   should_apply("(device-aspect-ratio: " + real_dar + ")");
 234   should_apply("not all and (device-aspect-ratio: " + high_dar_1 + ")");
 235   should_not_apply("all and (device-aspect-ratio: " + high_dar_2 + ")");
 236   should_not_apply("all and (device-aspect-ratio: " + low_dar_1 + ")");
 237   should_apply("not all and (device-aspect-ratio: " + low_dar_2 + ")");
 238   should_apply("(device-aspect-ratio)");
 239
 240   should_apply("(min-device-aspect-ratio: " + real_dar + ")");
 241   should_not_apply("all and (min-device-aspect-ratio: " + high_dar_1 + ")");
 242   should_apply("not all and (min-device-aspect-ratio: " + high_dar_2 + ")");
 243   should_not_apply("not all and (min-device-aspect-ratio: " + low_dar_1 + ")");
 244   should_apply("all and (min-device-aspect-ratio: " + low_dar_2 + ")");
 245   expression_should_not_be_parseable("min-device-aspect-ratio");
 246
 247   should_apply("all and (max-device-aspect-ratio: " + real_dar + ")");
 248   should_apply("(max-device-aspect-ratio: " + high_dar_1 + ")");
 249   should_apply("(max-device-aspect-ratio: " + high_dar_2 + ")");
 250   should_not_apply("all and (max-device-aspect-ratio: " + low_dar_1 + ")");
 251   should_apply("not all and (max-device-aspect-ratio: " + low_dar_2 + ")");
 252   expression_should_not_be_parseable("max-device-aspect-ratio");
 253
 254   for each (let feature in [ "max-aspect-ratio", "device-aspect-ratio" ]) {
 255     expression_should_be_parseable(feature + ": 1/1");
 256     expression_should_be_parseable(feature + ": 1  /1");
 257     expression_should_be_parseable(feature + ": 1  / \t\n1");
 258     expression_should_be_parseable(feature + ": 1/\r1");
 259     expression_should_not_be_parseable(feature + ": 1");
 260     expression_should_not_be_parseable(feature + ": 0.5");
 261     expression_should_not_be_parseable(feature + ": 1.0/1");
 262     expression_should_not_be_parseable(feature + ": 1/1.0");
 263     expression_should_not_be_parseable(feature + ": 1.0/1.0");
 264     expression_should_not_be_parseable(feature + ": 0/1");
 265     expression_should_not_be_parseable(feature + ": 1/0");
 266     expression_should_not_be_parseable(feature + ": 0/0");
 267     expression_should_not_be_parseable(feature + ": -1/1");
 268     expression_should_not_be_parseable(feature + ": 1/-1");
 269     expression_should_not_be_parseable(feature + ": -1/-1");
 270   }
 271
 272   var is_monochrome = query_applies("all and (min-monochrome: 1)");
 273   var is_color = query_applies("all and (min-color: 1)");
 274   isnot(is_monochrome, is_color, "should be either monochrome or color");
 275
 276   function depth_query(prefix, depth) {
 277     return "all and (" + prefix + (is_color ? "color" : "monochrome") +
 278            ":" + depth + ")";
 279   }
 280
 281   var depth = 0;
 282   do {
 283     if (depth > 50) {
 284       ok(false, "breaking from loop, depth > 50");
 285       break;
 286     }
 287   } while (query_applies(depth_query("min-", ++depth)));
 288   --depth;
 289
 290   should_apply(depth_query("", depth));
 291   should_not_apply(depth_query("", depth - 1));
 292   should_not_apply(depth_query("", depth + 1));
 293   should_apply(depth_query("max-", depth));
 294   should_not_apply(depth_query("max-", depth - 1));
 295   should_apply(depth_query("max-", depth + 1));
 296
 297   (is_color ? should_apply : should_not_apply)("all and (color)");
 298   expression_should_not_be_parseable("max-color");
 299   expression_should_not_be_parseable("min-color");
 300   (is_color ? should_not_apply : should_apply)("all and (monochrome)");
 301   expression_should_not_be_parseable("max-monochrome");
 302   expression_should_not_be_parseable("min-monochrome");
 303   (is_color ? should_apply : should_not_apply)("not all and (monochrome)");
 304   (is_color ? should_not_apply : should_apply)("not all and (color)");
 305   (is_color ? should_apply : should_not_apply)("only all and (color)");
 306   (is_color ? should_not_apply : should_apply)("only all and (monochrome)");
 307
 308   for each (let feature in [ "color", "min-monochrome", "max-color-index" ]) {
 309     expression_should_be_parseable(feature + ": 1");
 310     expression_should_be_parseable(feature + ": 327");
 311     expression_should_be_parseable(feature + ": 0");
 312     expression_should_not_be_parseable(feature + ": 1.0");
 313     expression_should_not_be_parseable(feature + ": -1");
 314     expression_should_not_be_parseable(feature + ": 1/1");
 315   }
 316
 317   // Presume that we never support indexed color (at least not usefully
 318   // enough to call it indexed color).
 319   should_apply("(color-index: 0)");
 320   should_not_apply("(color-index: 1)");
 321   should_apply("(min-color-index: 0)");
 322   should_not_apply("(min-color-index: 1)");
 323   should_apply("(max-color-index: 0)");
 324   should_apply("(max-color-index: 1)");
 325   should_apply("(max-color-index: 157)");
 326
 327   for each (let feature in [ "resolution", "min-resolution",
 328                              "max-resolution" ]) {
 329     expression_should_be_parseable(feature + ": 3dpi");
 330     expression_should_be_parseable(feature + ":3dpi");
 331     expression_should_not_be_parseable(feature + ": 3.0dpi");
 332     expression_should_not_be_parseable(feature + ": 3.4dpi");
 333     expression_should_be_parseable(feature + "\t: 120dpcm");
 334     expression_should_not_be_parseable(feature + ": 0dpi");
 335     expression_should_not_be_parseable(feature + ": -3dpi");
 336   }
 337
 338   // Find the resolution using max-resolution
 339   let resolution = 0;
 340   do {
 341     ++resolution;
 342     if (resolution > 10000) {
 343       ok(false, "resolution greater than 10000dpi???");
 344       break;
 345     }
 346   } while (!query_applies("(max-resolution: " + resolution + "dpi)"));
 347
 348   // resolution should now be Math.ceil() of the actual resolution.
 349   let dpi_high;
 350   let dpi_low = resolution - 1;
 351   if (query_applies("(min-resolution: " + resolution + "dpi)")) {
 352     // It's exact!
 353     should_apply("(resolution: " + resolution + "dpi)");
 354     should_not_apply("(resolution: " + (resolution + 1) + "dpi)");
 355     should_not_apply("(resolution: " + (resolution - 1) + "dpi)");
 356     dpi_high = resolution + 1;
 357   } else {
 358         // We have no way to test resolution applying since it need not be
 359         // an integer.
 360     should_not_apply("(resolution: " + resolution + "dpi)");
 361     should_not_apply("(resolution: " + (resolution - 1) + "dpi)");
 362     dpi_high = resolution;
 363   }
 364
 365   should_apply("(min-resolution: " + dpi_low + "dpi)");
 366   should_not_apply("not all and (min-resolution: " + dpi_low + "dpi)");
 367   should_apply("not all and (min-resolution: " + dpi_high + "dpi)");
 368   should_not_apply("all and (min-resolution: " + dpi_high + "dpi)");
 369
 370   // Test dpcm units based on what we computed in dpi.
 371   let dpcm_high = Math.ceil(dpi_high / 2.54);
 372   let dpcm_low = Math.floor(dpi_low / 2.54);
 373   should_apply("(min-resolution: " + dpcm_low + "dpcm)");
 374   should_apply("(max-resolution: " + dpcm_high + "dpcm)");
 375   should_not_apply("(max-resolution: " + dpcm_low + "dpcm)");
 376   should_apply("not all and (min-resolution: " + dpcm_high + "dpcm)");
 377
 378   expression_should_be_parseable("scan");
 379   expression_should_be_parseable("scan: progressive");
 380   expression_should_be_parseable("scan:interlace");
 381   expression_should_not_be_parseable("min-scan:interlace");
 382   expression_should_not_be_parseable("scan: 1");
 383   expression_should_not_be_parseable("max-scan");
 384   expression_should_not_be_parseable("max-scan: progressive");
 385   // Assume we don't support tv devices.
 386   should_not_apply("(scan)");
 387   should_not_apply("(scan: progressive)");
 388   should_not_apply("(scan: interlace)");
 389   should_apply("not all and (scan)");
 390   should_apply("not all and (scan: progressive)");
 391   should_apply("not all and (scan: interlace)");
 392
 393   expression_should_be_parseable("grid");
 394   expression_should_be_parseable("grid: 0");
 395   expression_should_be_parseable("grid: 1");
 396   expression_should_be_parseable("grid: 1");
 397   expression_should_not_be_parseable("min-grid");
 398   expression_should_not_be_parseable("min-grid:0");
 399   expression_should_not_be_parseable("max-grid: 1");
 400   expression_should_not_be_parseable("grid: 2");
 401   expression_should_not_be_parseable("grid: -1");
 402
 403   // Assume we don't support grid devices
 404   should_not_apply("(grid)");
 405   should_apply("(grid: 0)");
 406   should_not_apply("(grid: 1)");
 407   should_not_apply("(grid: 2)");
 408   should_not_apply("(grid: -1)");
 409
 410   // Parsing tests
 411   // bug 454227
 412   should_apply("(orientation");
 413   should_not_apply("not all and (orientation");
 414   should_not_apply("(orientation:");
 415   should_apply("all,(orientation:");
 416   should_not_apply("(orientation:,all");
 417   should_apply("not all and (grid");
 418   should_not_apply("only all and (grid");
 419   should_not_apply("(grid");
 420   should_apply("all,(grid");
 421   should_not_apply("(grid,all");
 422   // bug 454226
 423   should_apply(",all");
 424   should_apply("all,");
 425   should_apply(",all,");
 426   should_apply("all,badmedium");
 427   should_apply("badmedium,all");
 428   should_not_apply(",badmedium,");
 429   should_apply("all,(badexpression)");
 430   should_apply("(badexpression),all");
 431   should_not_apply("(badexpression),badmedium");
 432   should_not_apply("badmedium,(badexpression)");
 433   should_apply("all,[badsyntax]");
 434   should_apply("[badsyntax],all");
 435   should_not_apply("badmedium,[badsyntax]");
 436   should_not_apply("[badsyntax],badmedium");
 437
 438   SimpleTest.finish();
 439 }
 440
 441 </script>
 442 </pre>
 443 </body>
 444 </html>
 445