| <!DOCTYPE HTML> |
| <html> |
| <head> |
| <style> |
| body { |
| margin: 0; |
| overflow: hidden; |
| } |
| |
| ::-webkit-scrollbar { |
| display: none; |
| } |
| |
| #port { |
| width: 500px; |
| height: 500px; |
| position: absolute; |
| top: 0; |
| left: 0; |
| overflow-x: none; |
| overflow-y: scroll; |
| scroll-snap-type: y mandatory; |
| opacity: 0.5; |
| } |
| |
| .area { |
| height: 500px; |
| width: 500px; |
| float: left; |
| scroll-snap-align: center; |
| } |
| </style> |
| <script> |
| let write = s => output.innerHTML += s + "<br>"; |
| |
| if (window.testRunner) { |
| testRunner.dumpAsText(); |
| testRunner.waitUntilDone(); |
| } |
| |
| function run() { |
| if (!window.testRunner || !window.eventSender) { |
| write("To manually test, verify that scrolling in the overflow container snaps to each of the children."); |
| return; |
| } |
| |
| internals.setPlatformMomentumScrollingPredictionEnabled(false); |
| eventSender.monitorWheelEvents(); |
| eventSender.mouseMoveTo(250, 250); |
| eventSender.mouseScrollByWithWheelAndMomentumPhases(0, -1, "began", "none"); |
| eventSender.mouseScrollByWithWheelAndMomentumPhases(0, -1, "changed", "none"); |
| eventSender.mouseScrollByWithWheelAndMomentumPhases(0, -1, "changed", "none"); |
| eventSender.mouseScrollByWithWheelAndMomentumPhases(0, 0, "ended", "none"); |
| eventSender.mouseScrollByWithWheelAndMomentumPhases(0, -1, "none", "begin"); |
| eventSender.mouseScrollByWithWheelAndMomentumPhases(0, -1, "none", "continue"); |
| eventSender.mouseScrollByWithWheelAndMomentumPhases(0, 0, "none", "end"); |
| eventSender.callAfterScrollingCompletes(() => { |
| write(`After swiping, the container's scrollTop is now: ${port.scrollTop}`); |
| testRunner.notifyDone(); |
| }); |
| } |
| </script> |
| </head> |
| <body onload=run()> |
| <div id="port"> |
| <div class="area" style="background-color: red;"></div> |
| <div class="area" style="background-color: green;"></div> |
| <div class="area" style="background-color: blue;"></div> |
| <div class="area" style="background-color: aqua;"></div> |
| <div class="area" style="background-color: yellow;"></div> |
| <div class="area" style="background-color: fuchsia;"></div> |
| </div> |
| <div id="output"></div> |
| </body> |
| </html> |
