| <!DOCTYPE html> |
| <style> |
| body { |
| margin: 0; |
| } |
| iframe { |
| height: 900px; |
| width: 900px; |
| margin-left: 51px; |
| margin-top: 52px; |
| border: none; |
| } |
| </style> |
| |
| <script> |
| // Prefer non-composited scrolling because this is a test of non-composited |
| // scrollers. |
| if (window.internals) |
| internals.runtimeFlags.preferNonCompositedScrollingEnabled = true; |
| </script> |
| |
| <iframe id='iframe' src='resources/iframe-containing-non-fast-scrollables.html'></iframe> |
| |
| <script src="resources/non-fast-scrollable-region-testing.js"></script> |
| <script src="../resources/run-after-layout-and-paint.js"></script> |
| <script src="../resources/testharness.js"></script> |
| <script src="../resources/testharnessreport.js"></script> |
| <script> |
| async_test((t) => { |
| var iframeWindow = document.querySelector("iframe").contentWindow; |
| iframeWindow.addEventListener("load", () => { |
| t.step(function() { |
| nonFastScrollableRects = internals.nonFastScrollableRects(document); |
| assert_equals(nonFastScrollableRects.length, 3); |
| var rectStrings = []; |
| for (var rect of nonFastScrollableRects) |
| rectStrings.push(rectToString(rect)); |
| rectStrings.sort(); |
| assert_equals(rectStrings[0], '[51, 102, 200, 200]'); |
| assert_equals(rectStrings[1], '[51, 402, 211, 211]'); |
| assert_equals(rectStrings[2], '[51, 702, 222, 222]'); |
| var iframeElement = document.querySelector("iframe"); |
| iframeElement.style.visibility = 'hidden'; |
| }); |
| |
| runAfterLayoutAndPaint(() => { |
| t.step(function() { |
| nonFastScrollableRects = internals.nonFastScrollableRects(document); |
| assert_equals(nonFastScrollableRects.length, 0); |
| }); |
| t.done(); |
| }); |
| }); |
| }, "This test ensures that non-fast scrollable area is re-computed on FrameView visibility changes."); |
| </script> |
