| <!DOCTYPE html> |
| <html> |
| <head> |
| <style> |
| :root { |
| scroll-snap-type: block mandatory; |
| font-size: 24pt; |
| } |
| |
| * { |
| box-sizing: border-box; |
| } |
| |
| html, body { |
| width: 100%; |
| height: 100%; |
| } |
| |
| body { |
| margin: 0; |
| background-image: repeating-linear-gradient(transparent, silver 400px); |
| } |
| |
| .target { |
| scroll-snap-align: start; |
| border: 1px solid black; |
| } |
| |
| body > div { |
| padding: 100px; |
| text-align: center; |
| color: white; |
| width: 80%; |
| height: 100%; |
| } |
| |
| .multiple > div { |
| height: 100%; |
| width: 50%; |
| float: left; |
| } |
| |
| body.changed .layout-trigger { |
| height: 20px; |
| } |
| </style> |
| <script src="../../resources/js-test-pre.js"></script> |
| <script src="../../resources/ui-helper.js"></script> |
| <script> |
| jsTestIsAsync = true; |
| |
| async function startTest() |
| { |
| // Scroll to first "multiple" snap point at 700. |
| await UIHelper.mouseWheelScrollAt(100, 100, 0, -10, 0, -40); |
| forceLayout(); |
| |
| // Scroll to second "single" snap point at 1200. |
| await UIHelper.mouseWheelScrollAt(100, 100, 0, -10, 0, -40); |
| forceLayout(); |
| |
| await UIHelper.renderingUpdate(); |
| shouldBe('window.scrollY', '1200'); |
| |
| finishJSTest(); |
| } |
| |
| function forceLayout() |
| { |
| document.body.classList.toggle('changed'); |
| document.body.offsetHeight; |
| } |
| |
| window.addEventListener('load', () => { |
| setTimeout(startTest, 0); |
| }, false); |
| </script> |
| </head> |
| <body> |
| <div class="target" style='background-color: red'></div> |
| <div class="multiple" style='background-color: orange'> |
| <div class="target" style='background-color: yellow'></div> |
| <div class="target" style='background-color: fuchsia'></div> |
| </div> |
| <div class="target" style='background-color: green'></div> |
| <div class="layout-trigger">layout trigger</div> |
| <div id="console"></div> |
| <script src="../../resources/js-test-post.js"></script> |
| </body> |
| </html> |
