| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8" /> |
| <title>Callback Function Objects Implementing handleEvent()</title> |
| </head> |
| <body> |
| |
| <p> |
| When a JS callback is a function, it should be called. If the function has another function as |
| its <code>handleEvent</code> property, that function should <em>not</em> be called. |
| </p> |
| |
| <p id="console"></p> |
| |
| <script src="../../resources/js-test-pre.js"></script> |
| <script type="text/javascript" charset="utf-8"> |
| window.jsTestIsAsync = true; |
| |
| // This function should be called. |
| var callback = function(event) { |
| testPassed("The callback function was called directly."); |
| finishJSTest(); |
| }; |
| // This function should not be called. |
| callback.handleEvent = function(event) { |
| testFailed("The callback function's handleEvent property was called instead of the function itself."); |
| finishJSTest(); |
| }; |
| |
| // requestAnimationFrame is one of several uses of JS Callbacks |
| requestAnimationFrame(callback); |
| </script> |
| <script src="../../resources/js-test-post.js"></script> |
| |
| </body> |
| </html> |
