| <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"> |
| <html> |
| <head> |
| <script src="../resources/accessibility-helper.js"></script> |
| <script src="../resources/js-test.js"></script> |
| </head> |
| <body> |
| |
| <img src="resources/cake.png" id="image" onload="runTest();"> |
| <div id="nonimage">Not an image</div> |
| |
| <script> |
| var output = "This tests that AXImageDataSize and AXImageData can be retrieved for image elements.\n\n"; |
| |
| window.jsTestIsAsync = true; |
| |
| var image, nonImage; |
| function runTest() { |
| if (!window.accessibilityController) |
| return; |
| |
| image = accessibilityController.accessibleElementById("image"); |
| // imageDataSize should return non-empty dimensions for an image. |
| output += expect("image.imageDataSize.indexOf('AXImageDataSize') >= 0", "true"); |
| output += expect("image.imageDataSize.indexOf('{0, 0}') >= 0", "false"); |
| |
| // imageDataForParameters with resize 100x100 should return 100*100*4 = 40000 bytes. |
| output += expect("image.imageDataForParameters(100, 100)", "'AXImageData: 40000 bytes'"); |
| |
| // Native-size fetch (0, 0 means use original dimensions). cake.png is 280x209 = 234080 bytes. |
| output += expect("image.imageDataForParameters(0, 0)", "'AXImageData: 234080 bytes'"); |
| |
| // Invalid format should return null. |
| output += expect("image.imageDataForParametersWithFormat(100, 100, 'PNG')", "'(null)'"); |
| |
| // Subrect extraction: resize to 200x200, extract a 50x50 subrect = 50*50*4 = 10000 bytes. |
| output += expect("image.imageDataForSubrect(200, 200, 10, 10, 50, 50)", "'AXImageData: 10000 bytes'"); |
| |
| // Out-of-bounds subrect: resize to 100x100, request subrect starting at (80, 80) with size 50x50. |
| // The extraction rect extends beyond the buffer, but getPixelBuffer clips and zero-fills. |
| // The returned buffer is still 50*50*4 = 10000 bytes. |
| output += expect("image.imageDataForSubrect(100, 100, 80, 80, 50, 50)", "'AXImageData: 10000 bytes'"); |
| |
| // Out-of-bounds subrect without resize: native size is 280x209, request subrect at (250, 200) with size 100x100. |
| // The returned buffer is still 100*100*4 = 40000 bytes due to aforementioned zero-filling. |
| output += expect("image.imageDataForSubrect(0, 0, 250, 200, 100, 100)", "'AXImageData: 40000 bytes'"); |
| |
| nonImage = accessibilityController.accessibleElementById("nonimage"); |
| output += expect("nonImage.imageDataForParameters(100, 100)", "'(null)'"); |
| |
| debug(output); |
| finishJSTest(); |
| } |
| </script> |
| </body> |
| </html> |
