| <!DOCTYPE html> |
| <html> |
| <head> |
| <script src="../../resources/accessibility-helper.js"></script> |
| <script src="../../resources/js-test.js"></script> |
| <script src="../../resources/ui-helper.js"></script> |
| <style> |
| #iframe { position: absolute; left: 50px; top: 50px; width: 300px; height: 300px; border: 0; } |
| </style> |
| </head> |
| <body> |
| |
| <iframe id="iframe" role="presentation" src="../resources/scrollable-iframe-content.html"></iframe> |
| |
| <script> |
| var output = "This test verifies that an element inside a local iframe never exposes stale geometry, even after a scroll of the iframe's contents.\n\n"; |
| var initialX, scrolledX, delta; |
| |
| if (window.accessibilityController) { |
| window.jsTestIsAsync = true; |
| |
| var frameTarget; |
| setTimeout(async function() { |
| var iframe = document.getElementById("iframe"); |
| |
| await waitForElementById("frame-target"); |
| await waitForFrameGeometryReady(); |
| frameTarget = accessibilityController.accessibleElementById("frame-target"); |
| initialX = frameTarget.x; |
| |
| // Scroll the iframe's own content horizontally (the frame scrolls its own document, like a column |
| // page-turn, as in the case of Books). scrollTo updates the frame's scroll offset synchronously. |
| // We then read the accessibility frame in the same run-loop, which should still yield the correct result. |
| iframe.contentWindow.scrollTo(500, 0); |
| scrolledX = frameTarget.x; |
| |
| output += expect("iframe.contentWindow.scrollX", "500"); |
| output += expect("scrolledX < initialX", "true"); |
| delta = initialX - scrolledX; |
| output += expect("delta > 400 && delta < 600", "true"); |
| |
| debug(output); |
| finishJSTest(); |
| }, 0); |
| } |
| </script> |
| </body> |
| </html> |
