| <!doctype html> |
| <meta charset="utf-8"> |
| <meta name="viewport" content="width=device-width,initial-scale=1"> |
| <title>Scrollable Overflow of a Scroll Container with Transformed Child in Unreachable Scrollable Overflow Region.</title> |
| <link rel="help" href="https://drafts.csswg.org/css-overflow-3/#unreachable-scrollable-overflow-region"> |
| <link rel="help" href="https://drafts.csswg.org/css-overflow-3/#scrollable"> |
| <link rel="author" title="Jo Steven Novaryo" href="mailto:steven.novaryo@gmail.com"> |
| <script src=/resources/testharness.js></script> |
| <script src=/resources/testharnessreport.js></script> |
| <style> |
| body { margin: 0 } |
| .wrapper { |
| width: 100px; |
| height: 200px; |
| overflow: scroll; |
| } |
| .inner { |
| width: 100px; |
| height: 200px; |
| background-color: lime; |
| transform: translate(-3px, -6px) scale(1.10); |
| } |
| </style> |
| <div class="wrapper"> |
| <div class="inner"></div> |
| </div> |
| <script> |
| const wrapper = document.querySelector(".wrapper"); |
| const contentBox = { |
| width: 100, |
| height: 200, |
| }; |
| |
| function getCurrentTestName(display, direction, writingMode, flexDirection, flexWrap) { |
| return `display: ${display}; ` + |
| `direction: ${direction}; ` + |
| `writing-mode: ${writingMode}; ` + |
| `flex-direction: ${flexDirection}; ` + |
| `flex-wrap: ${flexWrap};`; |
| } |
| |
| for (let display of ["flow-root", "flex", "grid"]) { |
| for (let flexDirection of ["row", "row-reverse", "column", "column-reverse"]) { |
| if (flexDirection != "row" && display != "flex") { |
| // Don't bother retesting with all flexDirection values unless we're actually a flex container |
| continue; |
| } |
| for (let flexWrap of ["nowrap", "wrap-reverse"]) { |
| if (flexWrap != "nowrap" && display != "flex") { |
| // Don't bother retesting with all flexWrap values unless we're actually a flex container |
| continue; |
| } |
| for (let direction of ["ltr", "rtl"]) { |
| for (let writingMode of ["horizontal-tb", "vertical-lr", "vertical-rl"]) { |
| wrapper.style.display = display; |
| wrapper.style.direction = direction; |
| wrapper.style.writingMode = writingMode; |
| wrapper.style.flexDirection = flexDirection; |
| wrapper.style.flexWrap = flexWrap; |
| // Suppress scrollbars because they get added to the padding are |
| // and would need to account for them in flexbox. |
| wrapper.style.scrollbarWidth = display == "flex" ? "none" : ""; |
| let vertical = writingMode.startsWith("vertical"); |
| let scrollToTop = vertical && direction == "rtl"; |
| let scrollToLeft = (!vertical && direction == "rtl") || writingMode == "vertical-rl"; |
| let flexMainAxisIsVertical = flexDirection.startsWith("row") == vertical; |
| if (display == "flex") { |
| if (flexDirection.endsWith("-reverse")) { |
| if (flexMainAxisIsVertical) { |
| scrollToTop = !scrollToTop; |
| } else { |
| scrollToLeft = !scrollToLeft; |
| } |
| } |
| if (flexWrap == "wrap-reverse") { |
| if (flexMainAxisIsVertical) { |
| scrollToLeft = !scrollToLeft; |
| } else { |
| scrollToTop = !scrollToTop; |
| } |
| } |
| } |
| currentTestName = getCurrentTestName(display, direction, writingMode, flexDirection, flexWrap); |
| test(function() { |
| assert_equals(wrapper.scrollWidth, (scrollToLeft ? 108 : 102), "scrollWidth"); |
| }, "scrollWidth of " + currentTestName); |
| test(function() { |
| assert_equals(wrapper.scrollHeight, (scrollToTop ? 216 : 204), "scrollHeight"); |
| }, "scrollHeight of " + currentTestName); |
| } |
| } |
| } |
| } |
| } |
| </script> |
