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Issue 2737653004:
UMA metrics for use count of wheel and touch scrolls. (Closed)
| OLD | NEW |
|---|---|
| (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. | |
|
bokan
2017/03/09 17:31:03
Just curious, where does this limitation come from
sahel
2017/03/10 16:21:33
synthetic_gesture_target_mac doesn't override the
bokan
2017/03/10 16:27:13
Acknowledged.
| |
| 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 | |
| 55 }, "Scrolling by touch/wheel on main/compositor should update usecounters."); | |
| 56 | |
| 57 function waitForTouchScrollAndCheck() { | |
| 58 if (internals.isUseCounted(document, ScrollByTouch)) | |
| 59 scrollByWheel(); | |
| 60 else | |
| 61 requestAnimationFrame(waitForTouchScrollAndCheck); | |
| 62 } | |
| 63 | |
| 64 function scrollByWheel() { | |
| 65 chrome.gpuBenchmarking.smoothScrollBy(50, waitForWheelScrollAndCheck, | |
| 66 (rect.left + rect.right) / 2, | |
| 67 (rect.top + rect.bottom) / 2, | |
| 68 WHEEL_SOURCE_TYPE, "down", 4000); | |
| 69 } | |
| 70 | |
| 71 function waitForWheelScrollAndCheck() { | |
| 72 if (internals.isUseCounted(document, ScrollByWheel)) | |
| 73 done(); | |
| 74 else | |
| 75 requestAnimationFrame(waitForWheelScrollAndCheck); | |
| 76 } | |
| 77 | |
| 78 </script> | |
| OLD | NEW |
