| <!DOCTYPE HTML> |
| <script src="../../../../../resources/testharness.js"></script> |
| <script src="../../../../../resources/testharnessreport.js"></script> |
| <script src="../scroll-animation.js"></script> |
| <title>The first programmatic smooth scroll runs on compositor</title> |
| <style> |
| |
| html { |
| writing-mode: vertical-rl; |
| width: 1000px; |
| } |
| |
| </style> |
| <script> |
| |
| function inputDrivenScroll() { |
| return new Promise((resolve, reject) => { |
| eventSender.keyDown("ArrowLeft"); |
| resolve(); |
| }); |
| } |
| |
| promise_test(t => { |
| return inputDrivenScroll() |
| .then(waitForWindowScrollEnd.bind(this, -40, '')) |
| .then(() => { |
| assert_equals(scrollX, -40); |
| scrollBy({left: 40, behavior: "smooth"});}) |
| .then(waitForWindowScrollEnd.bind(this, 0, '')) |
| .then(() => { |
| assert_equals(scrollX, 0); |
| }); |
| }, "This test verifies that both input-driven and programmatic " + |
| "smooth scrolls serviced by the compositor thread go to the correct " + |
| "scroll position on RTL pages with horizontal overflow."); |
| |
| </script> |
