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1 <!DOCTYPE html> | |
2 <script src="../../../resources/js-test.js"></script> | |
3 <style> | |
4 body { | |
5 height: 2000px; | |
6 width: 2000px; | |
7 } | |
8 </style> | |
9 | |
10 <script> | |
11 window.jsTestIsAsync = true; | |
12 | |
13 description("This test ensures that consecutive mouse wheel ticks scroll\ | |
14 to the right offset. The main purpose of this test is to ensure that\ | |
15 smooth scrolling on the compositor works as intended (tested via\ | |
16 virtual suite virtual/threaded/)."); | |
17 | |
18 function runTest() { | |
19 if (!window.eventSender || !window.internals) { | |
20 finishJSTest(); | |
21 return; | |
22 } | |
23 | |
24 // Turn on smooth scrolling. | |
25 internals.settings.setScrollAnimatorEnabled(true); | |
26 | |
27 eventSender.mouseMoveTo(20, 20); | |
28 // Scroll down 3 ticks. | |
29 eventSender.mouseScrollBy(0, -1); | |
30 eventSender.mouseScrollBy(0, -1); | |
31 eventSender.mouseScrollBy(0, -1); | |
32 // Scroll right 3 ticks. | |
33 eventSender.mouseScrollBy(-1, 0); | |
34 eventSender.mouseScrollBy(-1, 0); | |
35 eventSender.mouseScrollBy(-1, 0); | |
36 // Undo 1 tick in each direction. | |
37 eventSender.mouseScrollBy(0, 1); | |
38 eventSender.mouseScrollBy(1, 0); | |
39 | |
40 // 40px per tick. | |
41 shouldBecomeEqual("document.scrollingElement.scrollTop == 80 && " + | |
42 "document.scrollingElement.scrollLeft == 80", "true", finishJSTest); | |
43 } | |
44 </script> | |
45 | |
46 <body onload="runTest()"></body> | |
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