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| (Empty) | |
| 1 <!DOCTYPE HTML> |
| 2 <script src="../../resources/testharness.js"></script> |
| 3 <script src="../../resources/testharnessreport.js"></script> |
| 4 <style> |
| 5 |
| 6 ::-webkit-scrollbar { |
| 7 display: none; |
| 8 } |
| 9 body { |
| 10 margin: 0px; |
| 11 height: 1000px; |
| 12 width: 1000px; |
| 13 } |
| 14 #scrollable { |
| 15 background-color: #FF7F7F; |
| 16 height: 600px; |
| 17 width: 600px; |
| 18 overflow: scroll; |
| 19 } |
| 20 #content { |
| 21 height: 700px; |
| 22 width: 700px; |
| 23 } |
| 24 |
| 25 </style> |
| 26 |
| 27 <div id="scrollable"> |
| 28 <div id="content"></div> |
| 29 </div> |
| 30 |
| 31 <script> |
| 32 |
| 33 var div = document.getElementById('scrollable'); |
| 34 var rect = div.getBoundingClientRect(); |
| 35 |
| 36 const TOUCH_SOURCE_TYPE = 1; // TOUCH_INPUT from synthetic_gesture_params.h |
| 37 const WHEEL_SOURCE_TYPE = 2; // MOUSE_INPUT from synthetic_gesture_params.h |
| 38 |
| 39 var ScrollByTouch = 1847; // from enum Feature in UseCounter.h |
| 40 var ScrollByWheel = 1848; // from enum Feature in UseCounter.h |
| 41 |
| 42 setup({ explicit_done: true }); |
| 43 test(() => { |
| 44 // Skip touch scroll use count test on mac since touch smoothScrollBy |
| 45 // is not supported for mac. |
| 46 if (navigator.platform.indexOf('Mac') == 0) { |
| 47 scrollByWheel(); |
| 48 } else { |
| 49 chrome.gpuBenchmarking.smoothScrollBy(50, waitForTouchScrollAndCheck, |
| 50 (rect.left + rect.right) / 2, |
| 51 (rect.top + rect.bottom) / 2, |
| 52 TOUCH_SOURCE_TYPE, "down", 4000); |
| 53 } |
| 54 }, "Scrolling by touch/wheel on main/compositor should update usecounters."); |
| 55 |
| 56 function waitForTouchScrollAndCheck() { |
| 57 if (internals.isUseCounted(document, ScrollByTouch)) |
| 58 scrollByWheel(); |
| 59 else |
| 60 requestAnimationFrame(waitForTouchScrollAndCheck); |
| 61 } |
| 62 |
| 63 function scrollByWheel() { |
| 64 chrome.gpuBenchmarking.smoothScrollBy(50, waitForWheelScrollAndCheck, |
| 65 (rect.left + rect.right) / 2, |
| 66 (rect.top + rect.bottom) / 2, |
| 67 WHEEL_SOURCE_TYPE, "down", 4000); |
| 68 } |
| 69 |
| 70 function waitForWheelScrollAndCheck() { |
| 71 if (internals.isUseCounted(document, ScrollByWheel)) |
| 72 done(); |
| 73 else |
| 74 requestAnimationFrame(waitForWheelScrollAndCheck); |
| 75 } |
| 76 |
| 77 </script> |
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Chromium Code Reviews
Issue 2737653004:
UMA metrics for use count of wheel and touch scrolls. (Closed)
