| <!DOCTYPE html> |
| <html> |
| <head> |
| <style> |
| body { |
| margin: 0; |
| } |
| |
| dialog { |
| padding : 0; |
| } |
| |
| #console { |
| position: fixed; |
| } |
| </style> |
| <script src="../../resources/js-test.js"></script> |
| </head> |
| <body style="height: 10000px; width: 10000px"> |
| <div style="position: absolute; top: 5000px; left: 5000px; width: 20px;"> |
| <dialog id="dialog" style="top: 1200px; left: 1200px; right: auto; height: 100px; width: 50%; background-color: yellow"> |
| </dialog> |
| </div> |
| <script> |
| debug("This tests that a modal dialog's containing block is the initial containing block."); |
| debug('The dialog should be onscreen with a width of 50% of the viewport. It is the child of a ' + |
| 'narrow element positioned off screen, but its containing block is the initial containing ' + |
| 'block, so its position and percent lengths are relative to that.'); |
| |
| function checkPosition(dialog) { |
| shouldBe('dialog.offsetParent', 'null'); |
| shouldBe('dialog.offsetTop', '1200'); |
| shouldBe('dialog.offsetLeft', '1200'); |
| // Since dialog's 'width' is '50%', the expected width is half of the |
| // viewport width, but viewport width may be odd. It seems Blink rounds up for |
| // percentage lengths, so use Math.ceil here. |
| expectedWidth = Math.ceil(document.documentElement.clientWidth / 2); |
| shouldBe('dialog.clientWidth', 'expectedWidth'); |
| } |
| |
| window.scroll(1000, 1000); |
| dialog = document.getElementById('dialog'); |
| dialog.showModal(); |
| checkPosition(dialog); |
| dialog.close(); |
| </script> |
| </body> |
| </html> |
