| <!DOCTYPE html> |
| <html> |
| <body> |
| <script src="../../resources/js-test-pre.js"></script> |
| |
| <div id="detector"></div> |
| |
| <style> |
| #detector { width: 100px; } |
| @media (-webkit-min-device-pixel-ratio: 1) { #detector { width: 10px; } } |
| @media print and (-webkit-min-device-pixel-ratio: 3) { #detector { width: 30px; } } |
| </style> |
| |
| <script> |
| description("CSS3 media query test: -webkit-device-pixel-ratio combined with print.") |
| |
| if (window.testRunner && window.internals) { |
| window.testRunner.dumpAsText(); |
| |
| function resolutionFromStyle() { |
| var width = getComputedStyle(document.getElementById("detector")).width; |
| switch (width) { |
| case "10px": |
| return 1; |
| case "30px": |
| return 3; |
| case "31px": |
| return 3.125; |
| default: |
| return undefined; |
| } |
| } |
| |
| function appendMediaRule(rule) { |
| var lastStyleSheet = document.styleSheets[document.styleSheets.length - 1]; |
| lastStyleSheet.insertRule(rule, lastStyleSheet.cssRules.length); |
| } |
| |
| shouldBe("matchMedia('(-webkit-min-device-pixel-ratio: 1)').matches", "true"); |
| shouldBe("resolutionFromStyle()", "1"); |
| |
| // Test printing. |
| |
| window.internals.settings.setMediaTypeOverride("print"); |
| shouldBe("matchMedia('(-webkit-min-device-pixel-ratio: 3)').matches", "true"); |
| |
| // Should match the one requiring 'print' media type. |
| shouldBe("resolutionFromStyle()", "3"); |
| |
| // As well as those matching 'all'. |
| appendMediaRule("@media (-webkit-min-device-pixel-ratio: 3.125) { #detector { width: 31px; } }"); |
| shouldBe("resolutionFromStyle()", "3.125"); |
| } |
| </script> |
| |
| <script src="../../resources/js-test-post.js"></script> |
| </body> |
| </html> |
