| <!DOCTYPE html> |
| <html> |
| <head> |
| <style> |
| .scrollable_region { |
| width: 680px; |
| } |
| |
| .scrolled-content { |
| height: 1036px; |
| width: 100%; |
| background-image: repeating-linear-gradient(silver, white 120px); |
| } |
| </style> |
| <script src="../../resources/js-test-pre.js"></script> |
| <script src="../../resources/ui-helper.js"></script> |
| <script> |
| window.jsTestIsAsync = true; |
| |
| var divTarget; |
| var pageScrollPositionBefore; |
| var divScrollPositionBefore; |
| var continueCount = 5; |
| |
| var wheelCount = 0; |
| function onScrollWheel(evt) |
| { |
| wheelCount = wheelCount + 1; |
| } |
| |
| function checkForScroll() |
| { |
| // The div should not have scrolled at all. |
| var pageScrollPositionAfter = document.scrollingElement.scrollTop; |
| var divScrollPositionAfter = divTarget.scrollTop; |
| |
| if (pageScrollPositionBefore != pageScrollPositionAfter) |
| testFailed("Page received wheel events."); |
| else |
| testPassed("Page did not receive wheel events."); |
| |
| if (window.internals) { |
| document.getElementById('layers').innerText = internals.layerTreeAsText(document, |
| internals.LAYER_TREE_INCLUDES_VISIBLE_RECTS | internals.LAYER_TREE_INCLUDES_TILE_CACHES); |
| } |
| |
| finishJSTest(); |
| } |
| |
| async function scrollTest() |
| { |
| pageScrollPositionBefore = document.scrollingElement.scrollTop; |
| |
| divTarget = document.getElementById('target'); |
| divTarget.scrollTop = divTarget.scrollHeight - divTarget.clientHeight - 100; |
| |
| divScrollPositionBefore = divTarget.scrollTop; |
| |
| // Scroll the #source until we reach the #target. |
| const startPosX = Math.round(divTarget.offsetLeft) + 20; |
| const startPosY = Math.round(divTarget.offsetTop) + 100; // One wheel turn before end. |
| |
| const events = [ |
| { |
| type : "wheel", |
| viewX : startPosX, |
| viewY : startPosY, |
| deltaY : -10, |
| phase : "began" |
| }, |
| { |
| type : "wheel", |
| deltaY : -10, |
| phase : "changed" |
| }, |
| { |
| type : "wheel", |
| deltaY : -10, |
| phase : "changed" |
| }, |
| { |
| type : "wheel", |
| phase : "ended" |
| }, |
| { |
| type : "wheel", |
| deltaY : -10, |
| momentumPhase : "began" |
| }, |
| { |
| type : "wheel", |
| deltaY : -10, |
| momentumPhase : "changed" |
| }, |
| { |
| type : "wheel", |
| momentumPhase : "ended" |
| } |
| ]; |
| |
| await UIHelper.mouseWheelSequence({ events: events }); |
| checkForScroll(); |
| } |
| |
| function setupTopLevel() |
| { |
| if (window.eventSender) { |
| setTimeout(scrollTest, 0); |
| } else { |
| var messageLocation = document.getElementById('parent'); |
| var message = document.createElement('div'); |
| message.innerHTML = "<p>This test is better run under DumpRenderTree. To manually test it, place the mouse pointer<br/>" |
| + "near the bottom of the scrollable region, and then use the mouse wheel or a two-finger swipe to scroll up.<br/></br/>" |
| + "The page should not scroll.</p>"; |
| messageLocation.appendChild(message); |
| } |
| } |
| |
| window.addEventListener('load', () => { |
| document.addEventListener("mousewheel", onScrollWheel); |
| setupTopLevel(); |
| }, false); |
| </script> |
| </head> |
| <body> |
| <div id="parent" style="height: 2000px; width: 2000px;"> |
| <div id="source" style="height: 100px; width: 500px;"> |
| Put mouse here and flick downwards |
| </div> |
| <div class="scrollable_region"> |
| <h3>Scrollable Region</h3> |
| <div id="target" style='overflow-y: auto; overflow-x: hidden; max-height: 350px;'> |
| <div class="scrolled-content">Scrolled content</div> |
| </div> |
| </div> |
| </div> |
| <div id="console"></div> |
| <script> |
| description("Tests that a scrollable div doesn't pass wheel events to main frame when scrolling at bottom"); |
| </script> |
| <pre id="layers">Layer tree goes here</p> |
| <script src="../../resources/js-test-post.js"></script> |
| </body> |
| </html> |
