| <!DOCTYPE html> |
| <html> |
| <head> |
| <style> |
| body { |
| height: 2000px; |
| } |
| |
| iframe { |
| width: 500px; |
| height: 400px; |
| border: 2px solid gray; |
| margin: 50px 10px; |
| } |
| </style> |
| <script src="../../../resources/js-test-pre.js"></script> |
| <script src="../../../resources/ui-helper.js"></script> |
| <script> |
| jsTestIsAsync = true; |
| |
| var iframeTarget; |
| var overflowInIframeElement; |
| var overflowInIframeWheelEventCount = 0; |
| var iframeWindowWheelEventCount = 0; |
| var mainFrameWheelEventCount = 0; |
| |
| async function scrollTest() |
| { |
| iframeTarget = document.getElementById('target'); |
| overflowInIframeElement = iframeTarget.contentDocument.getElementById('scroller'); |
| |
| overflowInIframeElement.addEventListener('wheel', () => { |
| ++overflowInIframeWheelEventCount; |
| }, false); |
| |
| iframeTarget.contentWindow.addEventListener('wheel', () => { |
| ++iframeWindowWheelEventCount; |
| }, false); |
| |
| window.addEventListener('wheel', () => { |
| ++mainFrameWheelEventCount; |
| }, false); |
| |
| debug("Start with main frame scrolled, iframe scrolled, overflow scrolled to top"); |
| window.scrollTo(0, 20); |
| iframeTarget.contentWindow.scrollTo(0, 100); |
| |
| shouldBe('iframeTarget.contentWindow.pageYOffset', '100'); |
| shouldBe('overflowInIframeElement.scrollTop', '0'); |
| shouldBe('window.pageYOffset', '20'); |
| |
| shouldBe('mainFrameWheelEventCount', '0'); |
| shouldBe('iframeWindowWheelEventCount', '0'); |
| shouldBe('overflowInIframeWheelEventCount', '0'); |
| |
| if (!window.eventSender) { |
| finishJSTest(); |
| return; |
| } |
| |
| eventSender.mouseMoveTo(200, 350); // Over the overflow inside the iframe. |
| eventSender.monitorWheelEvents(); |
| eventSender.mouseScrollByWithWheelAndMomentumPhases(0, -1, 'began', 'none'); |
| eventSender.mouseScrollByWithWheelAndMomentumPhases(0, -10, 'changed', 'none'); |
| eventSender.mouseScrollByWithWheelAndMomentumPhases(0, -10, 'changed', 'none'); |
| eventSender.mouseScrollByWithWheelAndMomentumPhases(0, 0, 'ended', 'none'); |
| await UIHelper.waitForScrollCompletion(); |
| |
| debug('After scroll'); |
| shouldBe('iframeTarget.contentWindow.pageYOffset', '0'); |
| shouldBe('overflowInIframeElement.scrollTop', '0'); |
| shouldBe('window.pageYOffset', '20'); |
| |
| shouldBe('mainFrameWheelEventCount', '0'); |
| shouldBe('iframeWindowWheelEventCount', '2'); |
| shouldBe('overflowInIframeWheelEventCount', '2'); |
| |
| finishJSTest(); |
| } |
| |
| window.addEventListener('load', () => { |
| description("Tests that wheel events still go to the innermost scroller even if latching skips it. Also tests that wheel events don't propagate between frames."); |
| setTimeout(scrollTest, 0); |
| |
| }, false); |
| </script> |
| |
| </head> |
| <body> |
| <iframe id="target" |
| srcdoc= " |
| <style> |
| body { |
| height: 1200px; |
| } |
| #scroller { |
| width: 400px; |
| height: 400px; |
| border: 1px solid black; |
| margin: 10px; |
| margin-top: 200px; |
| overflow: scroll; |
| } |
| .contents { |
| height: 300%; |
| background-image: repeating-linear-gradient(silver, white 200px); |
| } |
| </style> |
| |
| <p>iframe contents</p> |
| <div id='scroller'> |
| <div class='contents'> |
| <p>Overflow contents</p> |
| </div> |
| </div>"> |
| </iframe> |
| </div> |
| |
| <div id="console"></div> |
| <script src="../../../resources/js-test-post.js"></script> |
| </body> |
| </html> |
