| <!DOCTYPE html> |
| <html> |
| <head> |
| <script type="text/javascript"> |
| // Demonstrates how media query can be used to get the value of the |
| // window resolution. |
| function PrintWindowWidth() { |
| for (var i = 0; i < 16000; ++i) { |
| query_str = "(max-width: " + i + "px)" |
| if (window.matchMedia(query_str).matches) { |
| console.log("Found window width: " + query_str); |
| return; |
| } |
| } |
| console.log("Error: Could not find window width."); |
| } |
| |
| function PrintWindowHeight() { |
| for (var i = 0; i < 16000; ++i) { |
| query_str = "(max-height: " + i + "px)"; |
| if (window.matchMedia(query_str).matches) { |
| console.log("Found window height: " + query_str); |
| return; |
| } |
| } |
| console.log("Error: Could not find window height."); |
| } |
| |
| function PrintDpi() { |
| for (var i = 1; i < 16000; ++i) { |
| query_str = "(max-resolution:" + i + "dpi)" |
| if (window.matchMedia(query_str).matches) { |
| console.log("Found dpi: " + query_str); |
| return; |
| } |
| } |
| console.log("Error: Could not find window dpi."); |
| } |
| |
| |
| function intervalCallback() { |
| PrintDpi(); |
| PrintWindowHeight(); |
| PrintWindowWidth(); |
| } |
| |
| window.setInterval(intervalCallback, 500); |
| </script> |
| </head> |
| |
| <body> |
| </body> |
| </html> |
