| <!doctype html> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <script src="resources/overscroll-behavior-support.js"></script> |
| <link rel="help" href="https://drafts.csswg.org/css-overscroll-behavior"> |
| <style> |
| .scrolling { |
| overflow: scroll; |
| } |
| .scrollContent { |
| width: 300px; |
| height: 300px; |
| background: linear-gradient(135deg, red, blue); |
| } |
| #root { |
| width: 200px; |
| height: 200px; |
| } |
| #scroller { |
| width: 100px; |
| height: 100px; |
| overscroll-behavior-y: auto; |
| } |
| </style> |
| <div id='root' class="scrolling"> |
| <iframe id='scroller' srcdoc="<html><div style='width: 300px; height: 300px;'></div></html> |
| "></iframe> |
| <div class="scrollContent"></div> |
| </div> |
| |
| <script> |
| const root = document.getElementById('root'); |
| const scroller = document.getElementById('scroller'); |
| var overscrollDatas = [["auto", "auto", true, true], |
| ["contain", "auto", false, true], |
| ["none", "auto", false, true], |
| ["auto", "contain", true, false], |
| ["contain", "contain", false, false], |
| ["none", "contain", false, false], |
| ["auto", "none", true, false], |
| ["contain", "none", false, false], |
| ["none", "none", false, false]]; |
| function resetTest() { |
| // Try various methods to ensure the element position is reset immediately. |
| scroller.contentWindow.scrollX = 300; |
| scroller.contentWindow.scrollY = 300; |
| scroller.contentWindow.scrollTo(300, 300); |
| root.scrollLeft = 0; |
| root.scrollTop = 0; |
| root.scrollTo(0, 0); |
| } |
| |
| function overscrollBehaviorTest() { |
| overscrollDatas.forEach(([overscrollX, overscrollY, propagateX, propagateY]) => { |
| promise_test(() => { |
| resetTest(); |
| var target = scroller.contentWindow.document.getElementsByTagName("html")[0]; |
| target.style.overscrollBehaviorX = overscrollX; |
| target.style.overscrollBehaviorY = overscrollY; |
| var x = scroller.clientWidth / 2; |
| var y = scroller.clientHeight / 2; |
| var delta = getDeltas("right"); |
| return mouseWheelScrollAndWait(x, y, delta.X, delta.Y, delta.X, delta.Y).then(() => { |
| assert_equals(root.scrollLeft > 0, propagateX, 'Propagate horizontal scroll'); |
| }); |
| }, 'Iframe horizontal scroll test with overscroll-behavior: ' + overscrollX + ' ' + overscrollY + '.'); |
| |
| promise_test(() => { |
| resetTest(); |
| var target = scroller.contentWindow.document.getElementsByTagName("html")[0]; |
| target.style.overscrollBehaviorX = overscrollX; |
| target.style.overscrollBehaviorY = overscrollY; |
| |
| var x = scroller.clientWidth / 2; |
| var y = scroller.clientHeight / 2; |
| var delta = getDeltas("down"); |
| return mouseWheelScrollAndWait(x, y, delta.X, delta.Y, delta.X, delta.Y).then(() => { |
| assert_equals(root.scrollTop > 0, propagateY, 'Propagate vertical scroll'); |
| }); |
| }, 'Iframe vertical scroll test with overscroll-behavior: ' + overscrollX + ' ' + overscrollY + '.'); |
| }); |
| } |
| |
| scroller.addEventListener("load", overscrollBehaviorTest); |
| </script> |
