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window_wheel_default_action.html

window_wheel_default_action.html 93 KB
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
  1. <!DOCTYPE HTML>
    2. 

  2. <html>
    3. 

  3. <head>
    4. 

  4.   <title>Test for default action of WheelEvent</title>
    5. 

  5.   <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
    6. 

  6.   <script type="application/javascript" src="/tests/SimpleTest/EventUtils.js"></script>
    7. 

  7.   <script type="application/javascript" src="/tests/SimpleTest/paint_listener.js"></script>
    8. 

  8.   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
    9. 

  9. </head>
    10. 

  10. <body>
    11. 

  11. <p id="display"></p>
    12. 

  12. <div id="scrollable" style="overflow: auto; width: 200px; height: 200px;">
    13. 

  13.   <div id="clipper" style="margin: 0; padding: 0; overflow: hidden; width: 3000px; height: 3000px;">
    14. 

  14.     <div id="scrolled" style="width: 5000px; height: 5000px;">
    15. 

  15.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    16. 

  16.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    17. 

  17.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    18. 

  18.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    19. 

  19.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    20. 

  20.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    21. 

  21.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    22. 

  22.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    23. 

  23.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    24. 

  24.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    25. 

  25.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    26. 

  26.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    27. 

  27.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    28. 

  28.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    29. 

  29.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    30. 

  30.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    31. 

  31.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    32. 

  32.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    33. 

  33.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    34. 

  34.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    35. 

  35.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    36. 

  36.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    37. 

  37.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    38. 

  38.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    39. 

  39.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    40. 

  40.       Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text. Tere is a lot of text.<br>
    41. 

  41.     </div>
    42. 

  42.   </div>
    43. 

  43. </div>
    44. 

  44. <div id="spacerForBody"></div>
    45. 

  45. <div id="content" style="display: none">
    46. 

  46. 

  47. </div>
    48. 

  48. <pre id="test">
    49. 

  49. <script type="application/javascript">
    50. 

  50. 

  51. SimpleTest.waitForFocus(runTests, window);
    52. 

  52. SimpleTest.requestFlakyTimeout("untriaged");
    53. 

  53. 

  54. var winUtils = SpecialPowers.getDOMWindowUtils(window);
    55. 

  55. // grab refresh driver
    56. 

  56. winUtils.advanceTimeAndRefresh(100);
    57. 

  57. 

  58. var gScrollableElement = document.getElementById("scrollable");
    59. 

  59. var gScrolledElement = document.getElementById("scrolled");
    60. 

  60. var gSpacerForBodyElement = document.getElementById("spacerForBody");
    61. 

  61. 

  62. function is()
    63. 

  63. {
    64. 

  64.   window.opener.is.apply(window.opener, arguments);
    65. 

  65. }
    66. 

  66. 

  67. function ok()
    68. 

  68. {
    69. 

  69.   window.opener.ok.apply(window.opener, arguments);
    70. 

  70. }
    71. 

  71. 

  72. function sendWheelAndWait(aX, aY, aEvent, aCallback)
    73. 

  73. {
    74. 

  74.   sendWheelAndPaint(gScrollableElement, aX, aY, aEvent, aCallback);
    75. 

  75. }
    76. 

  76. 

  77. function hitEventLoop(aFunc, aTimes)
    78. 

  78. {
    79. 

  79.   winUtils.advanceTimeAndRefresh(100);
    80. 

  80. 

  81.   if (--aTimes) {
    82. 

  82.     setTimeout(hitEventLoop, 0, aFunc, aTimes);
    83. 

  83.   } else {
    84. 

  84.     setTimeout(aFunc, 20);
    85. 

  85.   }
    86. 

  86. }
    87. 

  87. 

  88. const zoomResetTopic = "browser-fullZoom:zoomReset";
    89. 

  89. SpecialPowers.registerObservers(zoomResetTopic);
    90. 

  90. 

  91. function onZoomReset(aCallback) {
    92. 

  92.   var specialPowersTopic = "specialpowers-" + zoomResetTopic;
    93. 

  93.   SpecialPowers.addObserver(function observe() {
    94. 

  94.     SpecialPowers.removeObserver(observe, specialPowersTopic);
    95. 

  95.     SimpleTest.executeSoon(aCallback);
    96. 

  96.   }, specialPowersTopic, false);
    97. 

  97. }
    98. 

  98. 

  99. function setDeltaMultiplierSettings(aSettings, aCallback)
    100. 

  100. {
    101. 

  101.   SpecialPowers.pushPrefEnv({"set": [
    102. 

  102.     ["mousewheel.default.delta_multiplier_x", aSettings.deltaMultiplierX * 100],
    103. 

  103.     ["mousewheel.default.delta_multiplier_y", aSettings.deltaMultiplierY * 100],
    104. 

  104.     ["mousewheel.default.delta_multiplier_z", aSettings.deltaMultiplierZ * 100],
    105. 

  105.     ["mousewheel.with_alt.delta_multiplier_x", aSettings.deltaMultiplierX * 100],
    106. 

  106.     ["mousewheel.with_alt.delta_multiplier_y", aSettings.deltaMultiplierY * 100],
    107. 

  107.     ["mousewheel.with_alt.delta_multiplier_z", aSettings.deltaMultiplierZ * 100],
    108. 

  108.     ["mousewheel.with_control.delta_multiplier_x", aSettings.deltaMultiplierX * 100],
    109. 

  109.     ["mousewheel.with_control.delta_multiplier_y", aSettings.deltaMultiplierY * 100],
    110. 

  110.     ["mousewheel.with_control.delta_multiplier_z", aSettings.deltaMultiplierZ * 100],
    111. 

  111.     ["mousewheel.with_meta.delta_multiplier_x", aSettings.deltaMultiplierX * 100],
    112. 

  112.     ["mousewheel.with_meta.delta_multiplier_y", aSettings.deltaMultiplierY * 100],
    113. 

  113.     ["mousewheel.with_meta.delta_multiplier_z", aSettings.deltaMultiplierZ * 100],
    114. 

  114.     ["mousewheel.with_shift.delta_multiplier_x", aSettings.deltaMultiplierX * 100],
    115. 

  115.     ["mousewheel.with_shift.delta_multiplier_y", aSettings.deltaMultiplierY * 100],
    116. 

  116.     ["mousewheel.with_shift.delta_multiplier_z", aSettings.deltaMultiplierZ * 100],
    117. 

  117.     ["mousewheel.with_win.delta_multiplier_x", aSettings.deltaMultiplierX * 100],
    118. 

  118.     ["mousewheel.with_win.delta_multiplier_y", aSettings.deltaMultiplierY * 100],
    119. 

  119.     ["mousewheel.with_win.delta_multiplier_z", aSettings.deltaMultiplierZ * 100]
    120. 

  120.    ]}, aCallback);
    121. 

  121. }
    122. 

  122. 

  123. function doTestScroll(aSettings, aCallback)
    124. 

  124. {
    125. 

  125.   const kNoScroll    = 0x00;
    126. 

  126.   const kScrollUp    = 0x01;
    127. 

  127.   const kScrollDown  = 0x02;
    128. 

  128.   const kScrollLeft  = 0x04;
    129. 

  129.   const kScrollRight = 0x08;
    130. 

  130. 

  131.   const kTests = [
    132. 

  132.     { description: "Scroll to bottom by pixel scroll even if lineOrPageDelta is 0",
    133. 

  133.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    134. 

  134.                deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
    135. 

  135.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
    136. 

  136.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    137. 

  137.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    138. 

  138.       expected: kScrollDown },
    139. 

  139.     { description: "Scroll to bottom by pixel scroll when lineOrPageDelta is 1",
    140. 

  140.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    141. 

  141.                deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
    142. 

  142.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
    143. 

  143.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    144. 

  144.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    145. 

  145.       expected: kScrollDown },
    146. 

  146.     { description: "Scroll to top by pixel scroll even if lineOrPageDelta is 0",
    147. 

  147.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    148. 

  148.                deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
    149. 

  149.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
    150. 

  150.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    151. 

  151.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    152. 

  152.       expected: kScrollUp },
    153. 

  153.     { description: "Scroll to top by pixel scroll when lineOrPageDelta is -1",
    154. 

  154.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    155. 

  155.                deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
    156. 

  156.                lineOrPageDeltaX: 0, lineOrPageDeltaY: -1, isMomentum: false,
    157. 

  157.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    158. 

  158.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    159. 

  159.       expected: kScrollUp },
    160. 

  160.     { description: "Scroll to right by pixel scroll even if lineOrPageDelta is 0",
    161. 

  161.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    162. 

  162.                deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
    163. 

  163.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
    164. 

  164.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    165. 

  165.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    166. 

  166.       expected: kScrollRight },
    167. 

  167.     { description: "Scroll to right by pixel scroll when lineOrPageDelta is 1",
    168. 

  168.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    169. 

  169.                deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
    170. 

  170.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 0, isMomentum: false,
    171. 

  171.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    172. 

  172.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    173. 

  173.       expected: kScrollRight },
    174. 

  174.     { description: "Scroll to left by pixel scroll even if lineOrPageDelta is 0",
    175. 

  175.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    176. 

  176.                deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
    177. 

  177.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
    178. 

  178.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    179. 

  179.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    180. 

  180.       expected: kScrollLeft },
    181. 

  181.     { description: "Scroll to left by pixel scroll when lineOrPageDelta is -1",
    182. 

  182.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    183. 

  183.                deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
    184. 

  184.                lineOrPageDeltaX: -1, lineOrPageDeltaY: 0, isMomentum: false,
    185. 

  185.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    186. 

  186.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    187. 

  187.       expected: kScrollLeft },
    188. 

  188.     { description: "Scroll to bottom-right by pixel scroll",
    189. 

  189.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    190. 

  190.                deltaX: 8.0, deltaY: 8.0, deltaZ: 0.0,
    191. 

  191.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
    192. 

  192.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    193. 

  193.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    194. 

  194.       expected: kScrollDown | kScrollRight },
    195. 

  195.     { description: "Scroll to bottom-left by pixel scroll",
    196. 

  196.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    197. 

  197.                deltaX: -8.0, deltaY: 8.0, deltaZ: 0.0,
    198. 

  198.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
    199. 

  199.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    200. 

  200.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    201. 

  201.       expected: kScrollDown | kScrollLeft },
    202. 

  202.     { description: "Scroll to top-left by pixel scroll",
    203. 

  203.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    204. 

  204.                deltaX: -8.0, deltaY: -8.0, deltaZ: 0.0,
    205. 

  205.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
    206. 

  206.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    207. 

  207.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    208. 

  208.       expected: kScrollUp | kScrollLeft },
    209. 

  209.     { description: "Scroll to top-right by pixel scroll",
    210. 

  210.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    211. 

  211.                deltaX: 8.0, deltaY: -8.0, deltaZ: 0.0,
    212. 

  212.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
    213. 

  213.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    214. 

  214.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    215. 

  215.       expected: kScrollUp | kScrollRight },
    216. 

  216.     { description: "Not Scroll by pixel scroll for z",
    217. 

  217.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    218. 

  218.                deltaX: 0.0, deltaY: 0.0, deltaZ: 1.0,
    219. 

  219.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
    220. 

  220.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    221. 

  221.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    222. 

  222.       expected: kNoScroll },
    223. 

  223. 

  224.     { description: "Scroll to bottom by line scroll even if lineOrPageDelta is 0",
    225. 

  225.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    226. 

  226.                deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
    227. 

  227.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
    228. 

  228.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    229. 

  229.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    230. 

  230.       expected: kScrollDown },
    231. 

  231.     { description: "Scroll to bottom by line scroll when lineOrPageDelta is 1",
    232. 

  232.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    233. 

  233.                deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
    234. 

  234.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
    235. 

  235.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    236. 

  236.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    237. 

  237.       expected: kScrollDown },
    238. 

  238.     { description: "Scroll to top by line scroll even if lineOrPageDelta is 0",
    239. 

  239.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    240. 

  240.                deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
    241. 

  241.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
    242. 

  242.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    243. 

  243.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    244. 

  244.       expected: kScrollUp },
    245. 

  245.     { description: "Scroll to top by line scroll when lineOrPageDelta is -1",
    246. 

  246.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    247. 

  247.                deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
    248. 

  248.                lineOrPageDeltaX: 0, lineOrPageDeltaY: -1, isMomentum: false,
    249. 

  249.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    250. 

  250.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    251. 

  251.       expected: kScrollUp },
    252. 

  252.     { description: "Scroll to right by line scroll even if lineOrPageDelta is 0",
    253. 

  253.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    254. 

  254.                deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
    255. 

  255.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
    256. 

  256.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    257. 

  257.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    258. 

  258.       expected: kScrollRight },
    259. 

  259.     { description: "Scroll to right by line scroll when lineOrPageDelta is 1",
    260. 

  260.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    261. 

  261.                deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
    262. 

  262.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 0, isMomentum: false,
    263. 

  263.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    264. 

  264.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    265. 

  265.       expected: kScrollRight },
    266. 

  266.     { description: "Scroll to left by line scroll even if lineOrPageDelta is 0",
    267. 

  267.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    268. 

  268.                deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
    269. 

  269.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
    270. 

  270.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    271. 

  271.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    272. 

  272.       expected: kScrollLeft },
    273. 

  273.     { description: "Scroll to left by line scroll when lineOrPageDelta is -1",
    274. 

  274.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    275. 

  275.                deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
    276. 

  276.                lineOrPageDeltaX: -1, lineOrPageDeltaY: 0, isMomentum: false,
    277. 

  277.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    278. 

  278.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    279. 

  279.       expected: kScrollLeft },
    280. 

  280.     { description: "Scroll to bottom-right by line scroll",
    281. 

  281.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    282. 

  282.                deltaX: 0.5, deltaY: 0.5, deltaZ: 0.0,
    283. 

  283.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
    284. 

  284.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    285. 

  285.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    286. 

  286.       expected: kScrollDown | kScrollRight },
    287. 

  287.     { description: "Scroll to bottom-left by line scroll",
    288. 

  288.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    289. 

  289.                deltaX: -0.5, deltaY: 0.5, deltaZ: 0.0,
    290. 

  290.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
    291. 

  291.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    292. 

  292.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    293. 

  293.       expected: kScrollDown | kScrollLeft },
    294. 

  294.     { description: "Scroll to top-left by line scroll",
    295. 

  295.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    296. 

  296.                deltaX: -0.5, deltaY: -0.5, deltaZ: 0.0,
    297. 

  297.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
    298. 

  298.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    299. 

  299.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    300. 

  300.       expected: kScrollUp | kScrollLeft },
    301. 

  301.     { description: "Scroll to top-right by line scroll",
    302. 

  302.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    303. 

  303.                deltaX: 0.5, deltaY: -0.5, deltaZ: 0.0,
    304. 

  304.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
    305. 

  305.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    306. 

  306.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    307. 

  307.       expected: kScrollUp | kScrollRight },
    308. 

  308.     { description: "Not Scroll by line scroll for z",
    309. 

  309.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    310. 

  310.                deltaX: 0.0, deltaY: 0.0, deltaZ: 1.0,
    311. 

  311.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
    312. 

  312.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    313. 

  313.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    314. 

  314.       expected: kNoScroll },
    315. 

  315. 

  316.     { description: "Scroll to bottom by page scroll even if lineOrPageDelta is 0",
    317. 

  317.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    318. 

  318.                deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
    319. 

  319.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
    320. 

  320.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    321. 

  321.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    322. 

  322.       expected: kScrollDown },
    323. 

  323.     { description: "Scroll to bottom by page scroll when lineOrPageDelta is 1",
    324. 

  324.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    325. 

  325.                deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
    326. 

  326.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
    327. 

  327.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    328. 

  328.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    329. 

  329.       expected: kScrollDown },
    330. 

  330.     { description: "Scroll to top by page scroll even if lineOrPageDelta is 0",
    331. 

  331.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    332. 

  332.                deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
    333. 

  333.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
    334. 

  334.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    335. 

  335.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    336. 

  336.       expected: kScrollUp },
    337. 

  337.     { description: "Scroll to top by page scroll when lineOrPageDelta is -1",
    338. 

  338.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    339. 

  339.                deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
    340. 

  340.                lineOrPageDeltaX: 0, lineOrPageDeltaY: -1, isMomentum: false,
    341. 

  341.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    342. 

  342.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    343. 

  343.       expected: kScrollUp },
    344. 

  344.     { description: "Scroll to right by page scroll even if lineOrPageDelta is 0",
    345. 

  345.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    346. 

  346.                deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
    347. 

  347.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
    348. 

  348.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    349. 

  349.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    350. 

  350.       expected: kScrollRight },
    351. 

  351.     { description: "Scroll to right by page scroll when lineOrPageDelta is 1",
    352. 

  352.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    353. 

  353.                deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
    354. 

  354.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 0, isMomentum: false,
    355. 

  355.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    356. 

  356.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    357. 

  357.       expected: kScrollRight },
    358. 

  358.     { description: "Scroll to left by page scroll even if lineOrPageDelta is 0",
    359. 

  359.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    360. 

  360.                deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
    361. 

  361.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
    362. 

  362.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    363. 

  363.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    364. 

  364.       expected: kScrollLeft },
    365. 

  365.     { description: "Scroll to left by page scroll when lineOrPageDelta is -1",
    366. 

  366.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    367. 

  367.                deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
    368. 

  368.                lineOrPageDeltaX: -1, lineOrPageDeltaY: 0, isMomentum: false,
    369. 

  369.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    370. 

  370.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    371. 

  371.       expected: kScrollLeft },
    372. 

  372.     { description: "Scroll to bottom-right by page scroll",
    373. 

  373.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    374. 

  374.                deltaX: 0.5, deltaY: 0.5, deltaZ: 0.0,
    375. 

  375.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
    376. 

  376.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    377. 

  377.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    378. 

  378.       expected: kScrollDown | kScrollRight },
    379. 

  379.     { description: "Scroll to bottom-left by page scroll",
    380. 

  380.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    381. 

  381.                deltaX: -0.5, deltaY: 0.5, deltaZ: 0.0,
    382. 

  382.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
    383. 

  383.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    384. 

  384.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    385. 

  385.       expected: kScrollDown | kScrollLeft },
    386. 

  386.     { description: "Scroll to top-left by page scroll",
    387. 

  387.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    388. 

  388.                deltaX: -0.5, deltaY: -0.5, deltaZ: 0.0,
    389. 

  389.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
    390. 

  390.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    391. 

  391.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    392. 

  392.       expected: kScrollUp | kScrollLeft },
    393. 

  393.     { description: "Scroll to top-right by page scroll",
    394. 

  394.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    395. 

  395.                deltaX: 0.5, deltaY: -0.5, deltaZ: 0.0,
    396. 

  396.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
    397. 

  397.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    398. 

  398.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    399. 

  399.       expected: kScrollUp | kScrollRight },
    400. 

  400.     { description: "Not Scroll by page scroll for z",
    401. 

  401.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    402. 

  402.                deltaX: 0.0, deltaY: 0.0, deltaZ: 1.0,
    403. 

  403.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
    404. 

  404.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    405. 

  405.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    406. 

  406.       expected: kNoScroll },
    407. 

  407. 

  408.     // special cases.
    409. 

  409. 

  410.     // momentum scroll should cause scroll even if the action is zoom, but if the default action is none,
    411. 

  411.     // shouldn't do it.
    412. 

  412.     { description: "Scroll to bottom by momentum pixel scroll when lineOrPageDelta is 0, even if the action is zoom",
    413. 

  413.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    414. 

  414.                deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
    415. 

  415.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
    416. 

  416.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    417. 

  417.                shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
    418. 

  418.       expected: kScrollDown },
    419. 

  419.     { description: "Scroll to bottom by momentum pixel scroll when lineOrPageDelta is 1, even if the action is zoom",
    420. 

  420.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    421. 

  421.                deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
    422. 

  422.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: true,
    423. 

  423.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    424. 

  424.                shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
    425. 

  425.       expected: kScrollDown },
    426. 

  426.     { description: "Scroll to top by momentum pixel scroll when lineOrPageDelta is 0, even if the action is zoom",
    427. 

  427.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    428. 

  428.                deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
    429. 

  429.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
    430. 

  430.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    431. 

  431.                shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
    432. 

  432.       expected: kScrollUp },
    433. 

  433.     { description: "Scroll to top by momentum pixel scroll when lineOrPageDelta is -1, even if the action is zoom",
    434. 

  434.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    435. 

  435.                deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
    436. 

  436.                lineOrPageDeltaX: 0, lineOrPageDeltaY: -1, isMomentum: true,
    437. 

  437.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    438. 

  438.                shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
    439. 

  439.       expected: kScrollUp },
    440. 

  440.     { description: "Scroll to right by momentum pixel scroll when lineOrPageDelta is 0, even if the action is zoom",
    441. 

  441.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    442. 

  442.                deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
    443. 

  443.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
    444. 

  444.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    445. 

  445.                shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
    446. 

  446.       expected: kScrollRight },
    447. 

  447.     { description: "Scroll to right by momentum pixel scroll when lineOrPageDelta is 1, even if the action is zoom",
    448. 

  448.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    449. 

  449.                deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
    450. 

  450.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 0, isMomentum: true,
    451. 

  451.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    452. 

  452.                shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
    453. 

  453.       expected: kScrollRight },
    454. 

  454.     { description: "Scroll to left by momentum pixel scroll when lineOrPageDelta is 0, even if the action is zoom",
    455. 

  455.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    456. 

  456.                deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
    457. 

  457.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
    458. 

  458.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    459. 

  459.                shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
    460. 

  460.       expected: kScrollLeft },
    461. 

  461.     { description: "Scroll to left by momentum pixel scroll when lineOrPageDelta is -1, even if the action is zoom",
    462. 

  462.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    463. 

  463.                deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
    464. 

  464.                lineOrPageDeltaX: -1, lineOrPageDeltaY: 0, isMomentum: true,
    465. 

  465.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    466. 

  466.                shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
    467. 

  467.       expected: kScrollLeft },
    468. 

  468.     { description: "Scroll to bottom-right by momentum pixel scroll even if the action is zoom",
    469. 

  469.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    470. 

  470.                deltaX: 8.0, deltaY: 8.0, deltaZ: 0.0,
    471. 

  471.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
    472. 

  472.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    473. 

  473.                shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
    474. 

  474.       expected: kScrollDown | kScrollRight },
    475. 

  475.     { description: "Scroll to bottom-left by momentum pixel scroll even if the action is zoom",
    476. 

  476.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    477. 

  477.                deltaX: -8.0, deltaY: 8.0, deltaZ: 0.0,
    478. 

  478.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
    479. 

  479.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    480. 

  480.                shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
    481. 

  481.       expected: kScrollDown | kScrollLeft },
    482. 

  482.     { description: "Scroll to top-left by momentum pixel scroll even if the action is zoom",
    483. 

  483.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    484. 

  484.                deltaX: -8.0, deltaY: -8.0, deltaZ: 0.0,
    485. 

  485.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
    486. 

  486.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    487. 

  487.                shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
    488. 

  488.       expected: kScrollUp | kScrollLeft },
    489. 

  489.     { description: "Scroll to top-right by momentum pixel scroll even if the action is zoom",
    490. 

  490.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    491. 

  491.                deltaX: 8.0, deltaY: -8.0, deltaZ: 0.0,
    492. 

  492.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
    493. 

  493.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    494. 

  494.                shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
    495. 

  495.       expected: kScrollUp | kScrollRight },
    496. 

  496.     { description: "Not Scroll by momentum pixel scroll for z (action is zoom)",
    497. 

  497.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    498. 

  498.                deltaX: 0.0, deltaY: 0.0, deltaZ: 1.0,
    499. 

  499.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
    500. 

  500.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    501. 

  501.                shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
    502. 

  502.       expected: kNoScroll },
    503. 

  503.     { description: "Not Scroll by momentum pixel scroll if default action is none (action is zoom)",
    504. 

  504.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    505. 

  505.                deltaX: 0.0, deltaY: 0.0, deltaZ: 1.0,
    506. 

  506.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
    507. 

  507.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    508. 

  508.                shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
    509. 

  509.       expected: kNoScroll,
    510. 

  510.       prepare: function (cb) { SpecialPowers.pushPrefEnv({"set": [["mousewheel.default.action", 0]]}, cb); },
    511. 

  511.       cleanup: function (cb) { SpecialPowers.pushPrefEnv({"set": [["mousewheel.default.action", 1]]}, cb); } },
    512. 

  512. 

  513.     // momentum scroll should cause scroll even if the action is history, but if the default action is none,
    514. 

  514.     // shouldn't do it.
    515. 

  515.     { description: "Scroll to bottom by momentum pixel scroll when lineOrPageDelta is 0, even if the action is history",
    516. 

  516.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    517. 

  517.                deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
    518. 

  518.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
    519. 

  519.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    520. 

  520.                shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    521. 

  521.       expected: kScrollDown },
    522. 

  522.     { description: "Scroll to bottom by momentum pixel scroll when lineOrPageDelta is 1, even if the action is history",
    523. 

  523.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    524. 

  524.                deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
    525. 

  525.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: true,
    526. 

  526.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    527. 

  527.                shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    528. 

  528.       expected: kScrollDown },
    529. 

  529.     { description: "Scroll to top by momentum pixel scroll when lineOrPageDelta is 0, even if the action is history",
    530. 

  530.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    531. 

  531.                deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
    532. 

  532.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
    533. 

  533.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    534. 

  534.                shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    535. 

  535.       expected: kScrollUp },
    536. 

  536.     { description: "Scroll to top by momentum pixel scroll when lineOrPageDelta is -1, even if the action is history",
    537. 

  537.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    538. 

  538.                deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
    539. 

  539.                lineOrPageDeltaX: 0, lineOrPageDeltaY: -1, isMomentum: true,
    540. 

  540.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    541. 

  541.                shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    542. 

  542.       expected: kScrollUp },
    543. 

  543.     { description: "Scroll to right by momentum pixel scroll when lineOrPageDelta is 0, even if the action is history",
    544. 

  544.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    545. 

  545.                deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
    546. 

  546.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
    547. 

  547.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    548. 

  548.                shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    549. 

  549.       expected: kScrollRight },
    550. 

  550.     { description: "Scroll to right by momentum pixel scroll when lineOrPageDelta is 1, even if the action is history",
    551. 

  551.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    552. 

  552.                deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
    553. 

  553.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 0, isMomentum: true,
    554. 

  554.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    555. 

  555.                shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    556. 

  556.       expected: kScrollRight },
    557. 

  557.     { description: "Scroll to left by momentum pixel scroll when lineOrPageDelta is 0, even if the action is history",
    558. 

  558.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    559. 

  559.                deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
    560. 

  560.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
    561. 

  561.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    562. 

  562.                shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    563. 

  563.       expected: kScrollLeft },
    564. 

  564.     { description: "Scroll to left by momentum pixel scroll when lineOrPageDelta is -1, even if the action is history",
    565. 

  565.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    566. 

  566.                deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
    567. 

  567.                lineOrPageDeltaX: -1, lineOrPageDeltaY: 0, isMomentum: true,
    568. 

  568.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    569. 

  569.                shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    570. 

  570.       expected: kScrollLeft },
    571. 

  571.     { description: "Scroll to bottom-right by momentum pixel scroll even if the action is history",
    572. 

  572.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    573. 

  573.                deltaX: 8.0, deltaY: 8.0, deltaZ: 0.0,
    574. 

  574.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
    575. 

  575.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    576. 

  576.                shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    577. 

  577.       expected: kScrollDown | kScrollRight },
    578. 

  578.     { description: "Scroll to bottom-left by momentum pixel scroll even if the action is history",
    579. 

  579.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    580. 

  580.                deltaX: -8.0, deltaY: 8.0, deltaZ: 0.0,
    581. 

  581.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
    582. 

  582.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    583. 

  583.                shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    584. 

  584.       expected: kScrollDown | kScrollLeft },
    585. 

  585.     { description: "Scroll to top-left by momentum pixel scroll even if the action is history",
    586. 

  586.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    587. 

  587.                deltaX: -8.0, deltaY: -8.0, deltaZ: 0.0,
    588. 

  588.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
    589. 

  589.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    590. 

  590.                shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    591. 

  591.       expected: kScrollUp | kScrollLeft },
    592. 

  592.     { description: "Scroll to top-right by momentum pixel scroll even if the action is history",
    593. 

  593.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    594. 

  594.                deltaX: 8.0, deltaY: -8.0, deltaZ: 0.0,
    595. 

  595.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
    596. 

  596.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    597. 

  597.                shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    598. 

  598.       expected: kScrollUp | kScrollRight },
    599. 

  599.     { description: "Not Scroll by momentum pixel scroll for z (action is history)",
    600. 

  600.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    601. 

  601.                deltaX: 0.0, deltaY: 0.0, deltaZ: 1.0,
    602. 

  602.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
    603. 

  603.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    604. 

  604.                shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    605. 

  605.       expected: kNoScroll },
    606. 

  606.     { description: "Not Scroll by momentum pixel scroll if default action is none (action is history)",
    607. 

  607.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    608. 

  608.                deltaX: 0.0, deltaY: 0.0, deltaZ: 1.0,
    609. 

  609.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
    610. 

  610.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    611. 

  611.                shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    612. 

  612.       expected: kNoScroll,
    613. 

  613.       prepare: function (cb) { SpecialPowers.pushPrefEnv({"set": [["mousewheel.default.action", 0]]}, cb); },
    614. 

  614.       cleanup: function (cb) { SpecialPowers.pushPrefEnv({"set": [["mousewheel.default.action", 1]]}, cb); } },
    615. 

  615. 

  616.     // Don't scroll along axis whose overflow style is hidden.
    617. 

  617.     { description: "Scroll to only bottom by oblique pixel wheel event with overflow-x: hidden",
    618. 

  618.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    619. 

  619.                deltaX: 16.0, deltaY: 16.0, deltaZ: 0.0,
    620. 

  620.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
    621. 

  621.                expectedOverflowDeltaX: 1, expectedOverflowDeltaY: 0,
    622. 

  622.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    623. 

  623.       expected: kScrollDown,
    624. 

  624.       prepare: function(cb) { gScrollableElement.style.overflowX = "hidden"; cb(); } },
    625. 

  625.     { description: "Scroll to only bottom by oblique line wheel event with overflow-x: hidden",
    626. 

  626.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    627. 

  627.                deltaX: 1.0, deltaY: 1.0, deltaZ: 0.0,
    628. 

  628.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
    629. 

  629.                expectedOverflowDeltaX: 1, expectedOverflowDeltaY: 0,
    630. 

  630.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    631. 

  631.       expected: kScrollDown },
    632. 

  632.     { description: "Scroll to only bottom by oblique page wheel event with overflow-x: hidden",
    633. 

  633.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    634. 

  634.                deltaX: 1.0, deltaY: 1.0, deltaZ: 0.0,
    635. 

  635.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
    636. 

  636.                expectedOverflowDeltaX: 1, expectedOverflowDeltaY: 0,
    637. 

  637.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    638. 

  638.       expected: kScrollDown },
    639. 

  639.     { description: "Scroll to only top by oblique pixel wheel event with overflow-x: hidden",
    640. 

  640.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    641. 

  641.                deltaX: -16.0, deltaY: -16.0, deltaZ: 0.0,
    642. 

  642.                lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
    643. 

  643.                expectedOverflowDeltaX: -1, expectedOverflowDeltaY: 0,
    644. 

  644.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    645. 

  645.       expected: kScrollUp },
    646. 

  646.     { description: "Scroll to only top by oblique line wheel event with overflow-x: hidden",
    647. 

  647.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    648. 

  648.                deltaX: -1.0, deltaY: -1.0, deltaZ: 0.0,
    649. 

  649.                lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
    650. 

  650.                expectedOverflowDeltaX: -1, expectedOverflowDeltaY: 0,
    651. 

  651.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    652. 

  652.       expected: kScrollUp },
    653. 

  653.     { description: "Scroll to only top by oblique page wheel event with overflow-x: hidden",
    654. 

  654.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    655. 

  655.                deltaX: -1.0, deltaY: -1.0, deltaZ: 0.0,
    656. 

  656.                lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
    657. 

  657.                expectedOverflowDeltaX: -1, expectedOverflowDeltaY: 0,
    658. 

  658.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    659. 

  659.       expected: kScrollUp,
    660. 

  660.       cleanup: function (cb) { gScrollableElement.style.overflowX = "auto"; cb(); } },
    661. 

  661.     { description: "Scroll to only right by oblique pixel wheel event with overflow-y: hidden",
    662. 

  662.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    663. 

  663.                deltaX: 16.0, deltaY: 16.0, deltaZ: 0.0,
    664. 

  664.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
    665. 

  665.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 1,
    666. 

  666.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    667. 

  667.       expected: kScrollRight,
    668. 

  668.       prepare: function(cb) { gScrollableElement.style.overflowY = "hidden"; cb(); } },
    669. 

  669.     { description: "Scroll to only right by oblique line wheel event with overflow-y: hidden",
    670. 

  670.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    671. 

  671.                deltaX: 1.0, deltaY: 1.0, deltaZ: 0.0,
    672. 

  672.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
    673. 

  673.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 1,
    674. 

  674.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    675. 

  675.       expected: kScrollRight },
    676. 

  676.     { description: "Scroll to only right by oblique page wheel event with overflow-y: hidden",
    677. 

  677.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    678. 

  678.                deltaX: 1.0, deltaY: 1.0, deltaZ: 0.0,
    679. 

  679.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
    680. 

  680.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 1,
    681. 

  681.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    682. 

  682.       expected: kScrollRight },
    683. 

  683.     { description: "Scroll to only left by oblique pixel wheel event with overflow-y: hidden",
    684. 

  684.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    685. 

  685.                deltaX: -16.0, deltaY: -16.0, deltaZ: 0.0,
    686. 

  686.                lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
    687. 

  687.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: -1,
    688. 

  688.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    689. 

  689.       expected: kScrollLeft },
    690. 

  690.     { description: "Scroll to only top by oblique line wheel event with overflow-y: hidden",
    691. 

  691.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    692. 

  692.                deltaX: -1.0, deltaY: -1.0, deltaZ: 0.0,
    693. 

  693.                lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
    694. 

  694.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: -1,
    695. 

  695.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    696. 

  696.       expected: kScrollLeft },
    697. 

  697.     { description: "Scroll to only top by oblique page wheel event with overflow-y: hidden",
    698. 

  698.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    699. 

  699.                deltaX: -1.0, deltaY: -1.0, deltaZ: 0.0,
    700. 

  700.                lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
    701. 

  701.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: -1,
    702. 

  702.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    703. 

  703.       expected: kScrollLeft,
    704. 

  704.       cleanup: function (cb) { gScrollableElement.style.overflowY = "auto"; cb(); } },
    705. 

  705.     { description: "Don't be scrolled by oblique pixel wheel event with overflow: hidden",
    706. 

  706.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    707. 

  707.                deltaX: 16.0, deltaY: 16.0, deltaZ: 0.0,
    708. 

  708.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
    709. 

  709.                expectedOverflowDeltaX: 1, expectedOverflowDeltaY: 1,
    710. 

  710.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    711. 

  711.       expected: kNoScroll,
    712. 

  712.       prepare: function(cb) { gScrollableElement.style.overflow = "hidden"; cb(); } },
    713. 

  713.     { description: "Don't be scrolled by oblique line wheel event with overflow: hidden",
    714. 

  714.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    715. 

  715.                deltaX: 1.0, deltaY: 1.0, deltaZ: 0.0,
    716. 

  716.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
    717. 

  717.                expectedOverflowDeltaX: 1, expectedOverflowDeltaY: 1,
    718. 

  718.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    719. 

  719.       expected: kNoScroll },
    720. 

  720.     { description: "Don't be scrolled by oblique page wheel event with overflow: hidden",
    721. 

  721.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    722. 

  722.                deltaX: 1.0, deltaY: 1.0, deltaZ: 0.0,
    723. 

  723.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
    724. 

  724.                expectedOverflowDeltaX: 1, expectedOverflowDeltaY: 1,
    725. 

  725.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    726. 

  726.       expected: kNoScroll },
    727. 

  727.     { description: "Don't be scrolled by oblique pixel wheel event with overflow: hidden",
    728. 

  728.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    729. 

  729.                deltaX: -16.0, deltaY: -16.0, deltaZ: 0.0,
    730. 

  730.                lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
    731. 

  731.                expectedOverflowDeltaX: -1, expectedOverflowDeltaY: -1,
    732. 

  732.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    733. 

  733.       expected: kNoScroll },
    734. 

  734.     { description: "Don't be scrolled by oblique line wheel event with overflow: hidden",
    735. 

  735.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    736. 

  736.                deltaX: -1.0, deltaY: -1.0, deltaZ: 0.0,
    737. 

  737.                lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
    738. 

  738.                expectedOverflowDeltaX: -1, expectedOverflowDeltaY: -1,
    739. 

  739.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    740. 

  740.       expected: kNoScroll },
    741. 

  741.     { description: "Don't be scrolled by oblique page wheel event with overflow: hidden",
    742. 

  742.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    743. 

  743.                deltaX: -1.0, deltaY: -1.0, deltaZ: 0.0,
    744. 

  744.                lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
    745. 

  745.                expectedOverflowDeltaX: -1, expectedOverflowDeltaY: -1,
    746. 

  746.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    747. 

  747.       expected: kNoScroll,
    748. 

  748.       cleanup: function (cb) { gScrollableElement.style.overflow = "auto"; cb(); } },
    749. 

  749. 

  750.     // Don't scroll along axis whose overflow style is hidden and overflow delta values should
    751. 

  751.     // be zero if there is ancestor scrollable element.
    752. 

  752.     { description: "Scroll to only bottom by oblique pixel wheel event with overflow-x: hidden (body is scrollable)",
    753. 

  753.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    754. 

  754.                deltaX: 16.0, deltaY: 16.0, deltaZ: 0.0,
    755. 

  755.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
    756. 

  756.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    757. 

  757.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    758. 

  758.       expected: kScrollDown,
    759. 

  759.       prepare: function(cb) {
    760. 

  760.         gScrollableElement.style.overflowX = "hidden";
    761. 

  761.         gScrollableElement.style.position = "fixed";
    762. 

  762.         gScrollableElement.style.top = "30px";
    763. 

  763.         gScrollableElement.style.left = "30px";
    764. 

  764.         // Make body element scrollable.
    765. 

  765.         gSpacerForBodyElement.style.width = "5000px";
    766. 

  766.         gSpacerForBodyElement.style.height = "5000px";
    767. 

  767.         document.documentElement.scrollTop = 500;
    768. 

  768.         document.documentElement.scrollLeft = 500;
    769. 

  769.         cb();
    770. 

  770.       } },
    771. 

  771.     { description: "Scroll to only bottom by oblique line wheel event with overflow-x: hidden (body is scrollable)",
    772. 

  772.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    773. 

  773.                deltaX: 1.0, deltaY: 1.0, deltaZ: 0.0,
    774. 

  774.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    775. 

  775.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    776. 

  776.       expected: kScrollDown },
    777. 

  777.     { description: "Scroll to only bottom by oblique page wheel event with overflow-x: hidden (body is scrollable)",
    778. 

  778.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    779. 

  779.                deltaX: 1.0, deltaY: 1.0, deltaZ: 0.0,
    780. 

  780.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
    781. 

  781.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    782. 

  782.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    783. 

  783.       expected: kScrollDown },
    784. 

  784.     { description: "Scroll to only top by oblique pixel wheel event with overflow-x: hidden (body is scrollable)",
    785. 

  785.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    786. 

  786.                deltaX: -16.0, deltaY: -16.0, deltaZ: 0.0,
    787. 

  787.                lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
    788. 

  788.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    789. 

  789.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    790. 

  790.       expected: kScrollUp },
    791. 

  791.     { description: "Scroll to only top by oblique line wheel event with overflow-x: hidden (body is scrollable)",
    792. 

  792.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    793. 

  793.                deltaX: -1.0, deltaY: -1.0, deltaZ: 0.0,
    794. 

  794.                lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
    795. 

  795.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    796. 

  796.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    797. 

  797.       expected: kScrollUp },
    798. 

  798.     { description: "Scroll to only top by oblique page wheel event with overflow-x: hidden (body is scrollable)",
    799. 

  799.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    800. 

  800.                deltaX: -1.0, deltaY: -1.0, deltaZ: 0.0,
    801. 

  801.                lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
    802. 

  802.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    803. 

  803.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    804. 

  804.       expected: kScrollUp,
    805. 

  805.       cleanup: function (cb) { gScrollableElement.style.overflowX = "auto"; cb(); } },
    806. 

  806.     { description: "Scroll to only right by oblique pixel wheel event with overflow-y: hidden (body is scrollable)",
    807. 

  807.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    808. 

  808.                deltaX: 16.0, deltaY: 16.0, deltaZ: 0.0,
    809. 

  809.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
    810. 

  810.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    811. 

  811.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    812. 

  812.       expected: kScrollRight,
    813. 

  813.       prepare: function(cb) { gScrollableElement.style.overflowY = "hidden"; cb(); } },
    814. 

  814.     { description: "Scroll to only right by oblique line wheel event with overflow-y: hidden (body is scrollable)",
    815. 

  815.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    816. 

  816.                deltaX: 1.0, deltaY: 1.0, deltaZ: 0.0,
    817. 

  817.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
    818. 

  818.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    819. 

  819.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    820. 

  820.       expected: kScrollRight },
    821. 

  821.     { description: "Scroll to only right by oblique page wheel event with overflow-y: hidden (body is scrollable)",
    822. 

  822.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    823. 

  823.                deltaX: 1.0, deltaY: 1.0, deltaZ: 0.0,
    824. 

  824.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
    825. 

  825.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    826. 

  826.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    827. 

  827.       expected: kScrollRight },
    828. 

  828.     { description: "Scroll to only left by oblique pixel wheel event with overflow-y: hidden (body is scrollable)",
    829. 

  829.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    830. 

  830.                deltaX: -16.0, deltaY: -16.0, deltaZ: 0.0,
    831. 

  831.                lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
    832. 

  832.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    833. 

  833.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    834. 

  834.       expected: kScrollLeft },
    835. 

  835.     { description: "Scroll to only top by oblique line wheel event with overflow-y: hidden (body is scrollable)",
    836. 

  836.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    837. 

  837.                deltaX: -1.0, deltaY: -1.0, deltaZ: 0.0,
    838. 

  838.                lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
    839. 

  839.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    840. 

  840.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    841. 

  841.       expected: kScrollLeft },
    842. 

  842.     { description: "Scroll to only top by oblique page wheel event with overflow-y: hidden (body is scrollable)",
    843. 

  843.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    844. 

  844.                deltaX: -1.0, deltaY: -1.0, deltaZ: 0.0,
    845. 

  845.                lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
    846. 

  846.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
    847. 

  847.                shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
    848. 

  848.       expected: kScrollLeft,
    849. 

  849.       cleanup: function (cb) {
    850. 

  850.         gScrollableElement.style.overflowY = "auto";
    851. 

  851.         gScrollableElement.style.position = "static";
    852. 

  852.         gSpacerForBodyElement.style.width = "";
    853. 

  853.         gSpacerForBodyElement.style.height = "";
    854. 

  854.         cb();
    855. 

  855.       } },
    856. 

  856.   ];
    857. 

  857. 

  858.   var description;
    859. 

  859. 

  860.   var currentTestIndex = -1;
    861. 

  861.   var isXReverted = (aSettings.deltaMultiplierX < 0);
    862. 

  862.   var isYReverted = (aSettings.deltaMultiplierY < 0);
    863. 

  863. 

  864.   function doNextTest()
    865. 

  865.   {
    866. 

  866.     if (++currentTestIndex >= kTests.length) {
    867. 

  867.       SimpleTest.executeSoon(aCallback);
    868. 

  868.       return;
    869. 

  869.     }
    870. 

  870. 

  871.     gScrollableElement.scrollTop = 1000;
    872. 

  872.     gScrollableElement.scrollLeft = 1000;
    873. 

  873. 

  874.     var currentTest = kTests[currentTestIndex];
    875. 

  875.     description = "doTestScroll(aSettings=" + aSettings.description + "), " + currentTest.description + ": ";
    876. 

  876.     if (currentTest.prepare) {
    877. 

  877.       currentTest.prepare(doTestCurrentScroll);
    878. 

  878.     } else {
    879. 

  879.       doTestCurrentScroll();
    880. 

  880.     }
    881. 

  881.   }
    882. 

  882. 

  883.   function doTestCurrentScroll() {
    884. 

  884.     var currentTest = kTests[currentTestIndex];
    885. 

  885.     sendWheelAndWait(10, 10, currentTest.event, function () {
    886. 

  886.       if (currentTest.expected == kNoScroll) {
    887. 

  887.         is(gScrollableElement.scrollTop, 1000, description + "scrolled vertical");
    888. 

  888.         is(gScrollableElement.scrollLeft, 1000, description + "scrolled horizontal");
    889. 

  889.       } else {
    890. 

  890.         var scrollUp = !isYReverted ? (currentTest.expected & kScrollUp) :
    891. 

  891.                                       (currentTest.expected & kScrollDown);
    892. 

  892.         var scrollDown = !isYReverted ? (currentTest.expected & kScrollDown) :
    893. 

  893.                                         (currentTest.expected & kScrollUp);
    894. 

  894.         if (scrollUp) {
    895. 

  895.           ok(gScrollableElement.scrollTop < 1000, description + "not scrolled up, got " + gScrollableElement.scrollTop);
    896. 

  896.         } else if (scrollDown) {
    897. 

  897.           ok(gScrollableElement.scrollTop > 1000, description + "not scrolled down, got " + gScrollableElement.scrollTop);
    898. 

  898.         } else {
    899. 

  899.           is(gScrollableElement.scrollTop, 1000, description + "scrolled vertical");
    900. 

  900.         }
    901. 

  901.         var scrollLeft = !isXReverted ? (currentTest.expected & kScrollLeft) :
    902. 

  902.                                         (currentTest.expected & kScrollRight);
    903. 

  903.         var scrollRight = !isXReverted ? (currentTest.expected & kScrollRight) :
    904. 

  904.                                          (currentTest.expected & kScrollLeft);
    905. 

  905.         if (scrollLeft) {
    906. 

  906.           ok(gScrollableElement.scrollLeft < 1000, description + "not scrolled to left, got " + gScrollableElement.scrollLeft);
    907. 

  907.         } else if (scrollRight) {
    908. 

  908.           ok(gScrollableElement.scrollLeft > 1000, description + "not scrolled to right, got " + gScrollableElement.scrollLeft);
    909. 

  909.         } else {
    910. 

  910.           is(gScrollableElement.scrollLeft, 1000, description + "scrolled horizontal");
    911. 

  911.         }
    912. 

  912.       }
    913. 

  913.       if (currentTest.cleanup) {
    914. 

  914.         currentTest.cleanup(nextStep);
    915. 

  915.       } else {
    916. 

  916.         nextStep();
    917. 

  917.       }
    918. 

  918. 

  919.       function nextStep() {
    920. 

  920.         winUtils.advanceTimeAndRefresh(100);
    921. 

  921.         doNextTest();
    922. 

  922.       }
    923. 

  923.     });
    924. 

  924.   }
    925. 

  925.   doNextTest();
    926. 

  926. }
    927. 

  927. 

  928. function doTestZoom(aSettings, aCallback)
    929. 

  929. {
    930. 

  930.   if ((aSettings.deltaMultiplierX != 1.0  && aSettings.deltaMultiplierX != -1.0) ||
    931. 

  931.       (aSettings.deltaMultiplierY != 1.0  && aSettings.deltaMultiplierY != -1.0)) {
    932. 

  932.     todo(false, "doTestZoom doesn't support to test with aSettings=" + aSettings.description);
    933. 

  933.     SimpleTest.executeSoon(aCallback);
    934. 

  934.     return;
    935. 

  935.   }
    936. 

  936. 

  937.   const kNone     = 0x00;
    938. 

  938.   const kPositive = 0x01;
    939. 

  939.   const kNegative = 0x02;
    940. 

  940.   const kUseX     = 0x10;
    941. 

  941.   const kUseY     = 0x20;
    942. 

  942.   const kTests = [
    943. 

  943.     { description: "by vertical/positive pixel event when its lineOrPageDeltaY is 0",
    944. 

  944.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    945. 

  945.                deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
    946. 

  946.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
    947. 

  947.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    948. 

  948.       expected: kNone },
    949. 

  949.     { description: "by vertical/positive pixel event when its lineOrPageDeltaY is 1",
    950. 

  950.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    951. 

  951.                deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
    952. 

  952.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 1,
    953. 

  953.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    954. 

  954.       expected: kPositive | kUseY },
    955. 

  955.     { description: "by vertical/negative pixel event when its lineOrPageDeltaY is 0",
    956. 

  956.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    957. 

  957.                deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
    958. 

  958.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
    959. 

  959.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    960. 

  960.       expected: kNone },
    961. 

  961.     { description: "by vertical/negative pixel event when its lineOrPageDeltaY is -1",
    962. 

  962.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    963. 

  963.                deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
    964. 

  964.                lineOrPageDeltaX: 0, lineOrPageDeltaY: -1,
    965. 

  965.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    966. 

  966.       expected: kNegative | kUseY },
    967. 

  967.     { description: "by horizotal/positive pixel event when its lineOrPageDeltaX is 0",
    968. 

  968.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    969. 

  969.                deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
    970. 

  970.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
    971. 

  971.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    972. 

  972.       expected: kNone },
    973. 

  973.     { description: "by horizotal/positive pixel event when its lineOrPageDeltaX is 1",
    974. 

  974.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    975. 

  975.                deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
    976. 

  976.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 0,
    977. 

  977.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    978. 

  978.       expected: kPositive | kUseX },
    979. 

  979.     { description: "by horizotal/negative pixel event when its lineOrPageDeltaX is 0",
    980. 

  980.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    981. 

  981.                deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
    982. 

  982.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
    983. 

  983.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    984. 

  984.       expected: kNone },
    985. 

  985.     { description: "by horizotal/negative pixel event when its lineOrPageDeltaX is -1",
    986. 

  986.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    987. 

  987.                deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
    988. 

  988.                lineOrPageDeltaX: -1, lineOrPageDeltaY: 0,
    989. 

  989.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    990. 

  990.       expected: kNegative | kUseX },
    991. 

  991.     { description: "by z pixel event",
    992. 

  992.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    993. 

  993.                deltaX: 0.0, deltaY: 0.0, deltaZ: 16.0,
    994. 

  994.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
    995. 

  995.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    996. 

  996.       expected: kNone },
    997. 

  997. 

  998.     { description: "by vertical/positive line event when its lineOrPageDeltaY is 0",
    999. 

  999.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1000. 

  1000.                deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
    1001. 

  1001.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
    1002. 

  1002.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    1003. 

  1003.       expected: kNone },
    1004. 

  1004.     { description: "by vertical/positive line event when its lineOrPageDeltaY is 1",
    1005. 

  1005.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1006. 

  1006.                deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
    1007. 

  1007.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 1,
    1008. 

  1008.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    1009. 

  1009.       expected: kPositive | kUseY },
    1010. 

  1010.     { description: "by vertical/negative line event when its lineOrPageDeltaY is 0",
    1011. 

  1011.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1012. 

  1012.                deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
    1013. 

  1013.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
    1014. 

  1014.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    1015. 

  1015.       expected: kNone },
    1016. 

  1016.     { description: "by vertical/negative line event when its lineOrPageDeltaY is -1",
    1017. 

  1017.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1018. 

  1018.                deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
    1019. 

  1019.                lineOrPageDeltaX: 0, lineOrPageDeltaY: -1,
    1020. 

  1020.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    1021. 

  1021.       expected: kNegative | kUseY },
    1022. 

  1022.     { description: "by horizotal/positive line event when its lineOrPageDeltaX is 0",
    1023. 

  1023.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1024. 

  1024.                deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
    1025. 

  1025.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
    1026. 

  1026.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    1027. 

  1027.       expected: kNone },
    1028. 

  1028.     { description: "by horizotal/positive line event when its lineOrPageDeltaX is 1",
    1029. 

  1029.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1030. 

  1030.                deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
    1031. 

  1031.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 0,
    1032. 

  1032.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    1033. 

  1033.       expected: kPositive | kUseX },
    1034. 

  1034.     { description: "by horizotal/negative line event when its lineOrPageDeltaX is 0",
    1035. 

  1035.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1036. 

  1036.                deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
    1037. 

  1037.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
    1038. 

  1038.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    1039. 

  1039.       expected: kNone },
    1040. 

  1040.     { description: "by horizotal/negative line event when its lineOrPageDeltaX is -1",
    1041. 

  1041.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1042. 

  1042.                deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
    1043. 

  1043.                lineOrPageDeltaX: -1, lineOrPageDeltaY: 0,
    1044. 

  1044.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    1045. 

  1045.       expected: kNegative | kUseX },
    1046. 

  1046.     { description: "by z line event",
    1047. 

  1047.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1048. 

  1048.                deltaX: 0.0, deltaY: 0.0, deltaZ: 1.0,
    1049. 

  1049.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
    1050. 

  1050.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    1051. 

  1051.       expected: kNone },
    1052. 

  1052. 

  1053.     { description: "by vertical/positive page event when its lineOrPageDeltaY is 0",
    1054. 

  1054.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    1055. 

  1055.                deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
    1056. 

  1056.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
    1057. 

  1057.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    1058. 

  1058.       expected: kNone },
    1059. 

  1059.     { description: "by vertical/positive page event when its lineOrPageDeltaY is 1",
    1060. 

  1060.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    1061. 

  1061.                deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
    1062. 

  1062.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 1,
    1063. 

  1063.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    1064. 

  1064.       expected: kPositive | kUseY },
    1065. 

  1065.     { description: "by vertical/negative page event when its lineOrPageDeltaY is 0",
    1066. 

  1066.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    1067. 

  1067.                deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
    1068. 

  1068.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
    1069. 

  1069.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    1070. 

  1070.       expected: kNone },
    1071. 

  1071.     { description: "by vertical/negative page event when its lineOrPageDeltaY is -1",
    1072. 

  1072.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    1073. 

  1073.                deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
    1074. 

  1074.                lineOrPageDeltaX: 0, lineOrPageDeltaY: -1,
    1075. 

  1075.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    1076. 

  1076.       expected: kNegative | kUseY },
    1077. 

  1077.     { description: "by horizotal/positive page event when its lineOrPageDeltaX is 0",
    1078. 

  1078.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    1079. 

  1079.                deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
    1080. 

  1080.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
    1081. 

  1081.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    1082. 

  1082.       expected: kNone },
    1083. 

  1083.     { description: "by horizotal/positive page event when its lineOrPageDeltaX is 1",
    1084. 

  1084.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    1085. 

  1085.                deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
    1086. 

  1086.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 0,
    1087. 

  1087.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    1088. 

  1088.       expected: kPositive | kUseX },
    1089. 

  1089.     { description: "by horizotal/negative page event when its lineOrPageDeltaX is 0",
    1090. 

  1090.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    1091. 

  1091.                deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
    1092. 

  1092.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
    1093. 

  1093.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    1094. 

  1094.       expected: kNone },
    1095. 

  1095.     { description: "by horizotal/negative page event when its lineOrPageDeltaX is -1",
    1096. 

  1096.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    1097. 

  1097.                deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
    1098. 

  1098.                lineOrPageDeltaX: -1, lineOrPageDeltaY: 0,
    1099. 

  1099.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    1100. 

  1100.       expected: kNegative | kUseX },
    1101. 

  1101.     { description: "by z page event",
    1102. 

  1102.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    1103. 

  1103.                deltaX: 0.0, deltaY: 0.0, deltaZ: 1.0,
    1104. 

  1104.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
    1105. 

  1105.                expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
    1106. 

  1106.       expected: kNone },
    1107. 

  1107.   ];
    1108. 

  1108. 

  1109.   var description, currentTest;
    1110. 

  1110.   var currentTestIndex = -1;
    1111. 

  1111.   var isXReverted = (aSettings.deltaMultiplierX < 0);
    1112. 

  1112.   var isYReverted = (aSettings.deltaMultiplierY < 0);
    1113. 

  1113. 

  1114.   function doNextTest()
    1115. 

  1115.   {
    1116. 

  1116.     if (++currentTestIndex >= kTests.length) {
    1117. 

  1117.       SimpleTest.executeSoon(aCallback);
    1118. 

  1118.       return;
    1119. 

  1119.     }
    1120. 

  1120. 

  1121.     gScrollableElement.scrollTop = 1000;
    1122. 

  1122.     gScrollableElement.scrollLeft = 1000;
    1123. 

  1123. 

  1124.     currentTest = kTests[currentTestIndex];
    1125. 

  1125.     description = "doTestZoom(aSettings=" + aSettings.description + "), ";
    1126. 

  1126.     if (currentTest.expected == kNone) {
    1127. 

  1127.       description += "Shouldn't ";
    1128. 

  1128.     } else {
    1129. 

  1129.       description += "Should ";
    1130. 

  1130.     }
    1131. 

  1131.     description += "zoom " + currentTest.description + ": ";
    1132. 

  1132. 

  1133.     var event = currentTest.event;
    1134. 

  1134.     event.ctrlKey  = true;
    1135. 

  1135. 

  1136.     // NOTE: Zooming might change scrollTop and scrollLeft by rounding fraction.
    1137. 

  1137.     //       This test assume that zoom happens synchronously and scrolling
    1138. 

  1138.     //       happens asynchronously.
    1139. 

  1139.     var scrollTop = gScrollableElement.scrollTop;
    1140. 

  1140.     var scrollLeft = gScrollableElement.scrollLeft;
    1141. 

  1141. 

  1142.     sendWheelAndWait(10, 10, event, function () {
    1143. 

  1143.       is(gScrollableElement.scrollTop, scrollTop, description + "scrolled vertical");
    1144. 

  1144.       is(gScrollableElement.scrollLeft, scrollLeft, description + "scrolled horizontal");
    1145. 

  1145.       if (!(currentTest.expected & (kNegative | kPositive))) {
    1146. 

  1146.         is(SpecialPowers.getFullZoom(window), 1.0, description + "zoomed");
    1147. 

  1147.       } else {
    1148. 

  1148.         var isReverted = (currentTest.expected & kUseX) ? isXReverted :
    1149. 

  1149.                          (currentTest.expected & kUseY) ? isYReverted : false;
    1150. 

  1150.         if ((!isReverted && (currentTest.expected & kNegative)) ||
    1151. 

  1151.             (isReverted && (currentTest.expected & kPositive))) {
    1152. 

  1152.           ok(SpecialPowers.getFullZoom(window) > 1.0,
    1153. 

  1153.              description + "not zoomed in, got " + SpecialPowers.getFullZoom(window));
    1154. 

  1154.         } else {
    1155. 

  1155.           ok(SpecialPowers.getFullZoom(window) < 1.0,
    1156. 

  1156.              description + "not zoomed out, got " + SpecialPowers.getFullZoom(window));
    1157. 

  1157.         }
    1158. 

  1158.       }
    1159. 

  1159. 

  1160.       synthesizeKey("0", { accelKey: true });
    1161. 

  1161.       onZoomReset(function () {
    1162. 

  1162.         hitEventLoop(doNextTest, 20);
    1163. 

  1163.       });
    1164. 

  1164.     });
    1165. 

  1165.   }
    1166. 

  1166.   doNextTest();
    1167. 

  1167. }
    1168. 

  1168. 

  1169. function doTestZoomedScroll(aCallback)
    1170. 

  1170. {
    1171. 

  1171.   var zoom = 1.0;
    1172. 

  1172.   function setFullZoom(aWindow, aZoom)
    1173. 

  1173.   {
    1174. 

  1174.     zoom = aZoom;
    1175. 

  1175.     SpecialPowers.setFullZoom(aWindow, aZoom);
    1176. 

  1176.   }
    1177. 

  1177. 

  1178.   function prepareTestZoomedPixelScroll()
    1179. 

  1179.   {
    1180. 

  1180.     // Reset zoom and store the scroll amount into the data.
    1181. 

  1181.     synthesizeKey("0", { accelKey: true });
    1182. 

  1182.     zoom = 1.0;
    1183. 

  1183.     onZoomReset(testZoomedPixelScroll);
    1184. 

  1184.   }
    1185. 

  1185. 

  1186.   function testZoomedPixelScroll()
    1187. 

  1187.   {
    1188. 

  1188.     gScrollableElement.scrollTop = 1000;
    1189. 

  1189.     gScrollableElement.scrollLeft = 1000;
    1190. 

  1190.     // Ensure not to be in reflow.
    1191. 

  1191.     hitEventLoop(function () {
    1192. 

  1192.       function mousePixelScrollHandler(aEvent)
    1193. 

  1193.       {
    1194. 

  1194.         if (aEvent.axis == MouseScrollEvent.HORIZONTAL_AXIS) {
    1195. 

  1195.           is(aEvent.detail, 16,
    1196. 

  1196.              "doTestZoomedScroll: The detail of horizontal MozMousePixelScroll for pixel wheel event is wrong");
    1197. 

  1197.         } else if (aEvent.axis == MouseScrollEvent.VERTICAL_AXIS) {
    1198. 

  1198.           is(aEvent.detail, 16,
    1199. 

  1199.              "doTestZoomedScroll: The detail of vertical MozMousePixelScroll for pixel wheel event is wrong");
    1200. 

  1200.         } else {
    1201. 

  1201.           ok(false, "doTestZoomedScroll: The axis of MozMousePixelScroll for pixel wheel event is invalid, got " + aEvent.axis);
    1202. 

  1202.         }
    1203. 

  1203.       }
    1204. 

  1204.       function wheelHandler(aEvent)
    1205. 

  1205.       {
    1206. 

  1206.         is(aEvent.deltaX, 16.0 / zoom,
    1207. 

  1207.            "doTestZoomedScroll: The deltaX of wheel for pixel is wrong");
    1208. 

  1208.         is(aEvent.deltaY, 16.0 / zoom,
    1209. 

  1209.            "doTestZoomedScroll: The deltaY of wheel for pixel is wrong");
    1210. 

  1210.       }
    1211. 

  1211.       window.addEventListener("MozMousePixelScroll", mousePixelScrollHandler, true);
    1212. 

  1212.       window.addEventListener("wheel", wheelHandler, true);
    1213. 

  1213.       var event = {
    1214. 

  1214.         deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    1215. 

  1215.         deltaX: 16.0,
    1216. 

  1216.         deltaY: 16.0,
    1217. 

  1217.         lineOrPageDeltaX: 0,
    1218. 

  1218.         lineOrPageDeltaY: 0
    1219. 

  1219.       };
    1220. 

  1220.       // wait scrolled actually.
    1221. 

  1221.       sendWheelAndWait(10, 10, event, function () {
    1222. 

  1222.         var scrolledX = gScrollableElement.scrollLeft;
    1223. 

  1223.         var scrolledY = gScrollableElement.scrollTop;
    1224. 

  1224.         ok(scrolledX > 1000,
    1225. 

  1225.            "doTestZoomedScroll: scrolledX must be larger than 1000 for pixel wheel event, got " + scrolledX);
    1226. 

  1226.         ok(scrolledY > 1000,
    1227. 

  1227.            "doTestZoomedScroll: scrolledY must be larger than 1000 for pixel wheel event, got " + scrolledY);
    1228. 

  1228. 

  1229.         // Zoom
    1230. 

  1230.         setFullZoom(window, 2.0);
    1231. 

  1231.         // Ensure not to be in reflow.
    1232. 

  1232.         hitEventLoop(function () {
    1233. 

  1233.           gScrollableElement.scrollTop = 1000;
    1234. 

  1234.           gScrollableElement.scrollLeft = 1000;
    1235. 

  1235.           var event = {
    1236. 

  1236.             deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    1237. 

  1237.             deltaX: 16.0,
    1238. 

  1238.             deltaY: 16.0,
    1239. 

  1239.             lineOrPageDeltaX: 0,
    1240. 

  1240.             lineOrPageDeltaY: 0
    1241. 

  1241.           };
    1242. 

  1242.           // wait scrolled actually.
    1243. 

  1243.           sendWheelAndWait(10, 10, event, function () {
    1244. 

  1244.             ok(Math.abs(gScrollableElement.scrollLeft - (1000 + (scrolledX - 1000) / 2)) <= 1,
    1245. 

  1245.                "doTestZoomedScroll: zoomed horizontal scroll amount by pixel wheel event is different from normal, scrollLeft=" +
    1246. 

  1246.                  gScrollableElement.scrollLeft + ", scrolledX=" + scrolledX);
    1247. 

  1247.             ok(Math.abs(gScrollableElement.scrollTop - (1000 + (scrolledY - 1000) / 2)) <= 1,
    1248. 

  1248.                "doTestZoomedScroll: zoomed vertical scroll amount by pixel wheel event is different from normal, scrollTop=" +
    1249. 

  1249.                  gScrollableElement.scrollTop + ", scrolledY=" + scrolledY);
    1250. 

  1250.             window.removeEventListener("MozMousePixelScroll", mousePixelScrollHandler, true);
    1251. 

  1251.             window.removeEventListener("wheel", wheelHandler, true);
    1252. 

  1252. 

  1253.             synthesizeKey("0", { accelKey: true });
    1254. 

  1254.             onZoomReset(prepareTestZoomedLineScroll);
    1255. 

  1255.           });
    1256. 

  1256.         }, 20);
    1257. 

  1257.       });
    1258. 

  1258.     }, 20);
    1259. 

  1259.   }
    1260. 

  1260. 

  1261.   function prepareTestZoomedLineScroll()
    1262. 

  1262.   {
    1263. 

  1263.     // Reset zoom and store the scroll amount into the data.
    1264. 

  1264.     synthesizeKey("0", { accelKey: true });
    1265. 

  1265.     zoom = 1.0;
    1266. 

  1266.     onZoomReset(testZoomedLineScroll);
    1267. 

  1267.   }
    1268. 

  1268.   function testZoomedLineScroll()
    1269. 

  1269.   {
    1270. 

  1270.     gScrollableElement.scrollTop = 1000;
    1271. 

  1271.     gScrollableElement.scrollLeft = 1000;
    1272. 

  1272.     // Ensure not to be in reflow.
    1273. 

  1273.     hitEventLoop(function () {
    1274. 

  1274.       var lineHeightX, lineHeightY;
    1275. 

  1275.       function handler(aEvent)
    1276. 

  1276.       {
    1277. 

  1277.         if (aEvent.axis == MouseScrollEvent.HORIZONTAL_AXIS) {
    1278. 

  1278.           if (lineHeightX == undefined) {
    1279. 

  1279.             lineHeightX = aEvent.detail;
    1280. 

  1280.           } else {
    1281. 

  1281.             ok(Math.abs(aEvent.detail - lineHeightX) <= 1,
    1282. 

  1282.                "doTestZoomedScroll: The detail of horizontal MozMousePixelScroll for line wheel event is wrong, aEvent.detail=" +
    1283. 

  1283.                  aEvent.detail + ", lineHeightX=" + lineHeightX);
    1284. 

  1284.           }
    1285. 

  1285.         } else if (aEvent.axis == MouseScrollEvent.VERTICAL_AXIS) {
    1286. 

  1286.           if (lineHeightY == undefined) {
    1287. 

  1287.             lineHeightY = aEvent.detail;
    1288. 

  1288.           } else {
    1289. 

  1289.             ok(Math.abs(aEvent.detail - lineHeightY) <= 1,
    1290. 

  1290.                "doTestZoomedScroll: The detail of vertical MozMousePixelScroll for line wheel event is wrong, aEvent.detail=" +
    1291. 

  1291.                  aEvent.detail + ", lineHeightY=" + lineHeightY);
    1292. 

  1292.           }
    1293. 

  1293.         } else {
    1294. 

  1294.           ok(false, "doTestZoomedScroll: The axis of MozMousePixelScroll for line wheel event is invalid, got " + aEvent.axis);
    1295. 

  1295.         }
    1296. 

  1296.       }
    1297. 

  1297.       window.addEventListener("MozMousePixelScroll", handler, true);
    1298. 

  1298.       var event = {
    1299. 

  1299.         deltaMode: WheelEvent.DOM_DELTA_LINE,
    1300. 

  1300.         deltaX: 1.0,
    1301. 

  1301.         deltaY: 1.0,
    1302. 

  1302.         lineOrPageDeltaX: 1,
    1303. 

  1303.         lineOrPageDeltaY: 1
    1304. 

  1304.       };
    1305. 

  1305.       // wait scrolled actually.
    1306. 

  1306.       sendWheelAndWait(10, 10, event, function () {
    1307. 

  1307.         var scrolledX = gScrollableElement.scrollLeft;
    1308. 

  1308.         var scrolledY = gScrollableElement.scrollTop;
    1309. 

  1309.         ok(scrolledX > 1000,
    1310. 

  1310.            "doTestZoomedScroll: scrolledX must be larger than 1000 for line wheel event, got " + scrolledX);
    1311. 

  1311.         ok(scrolledY > 1000,
    1312. 

  1312.            "doTestZoomedScroll: scrolledY must be larger than 1000 for line wheel event, got " + scrolledY);
    1313. 

  1313. 

  1314.         // Zoom
    1315. 

  1315.         setFullZoom(window, 2.0);
    1316. 

  1316.         // Ensure not to be in reflow.
    1317. 

  1317.         hitEventLoop(function () {
    1318. 

  1318.           gScrollableElement.scrollTop = 1000;
    1319. 

  1319.           gScrollableElement.scrollLeft = 1000;
    1320. 

  1320.           var event = {
    1321. 

  1321.             deltaMode: WheelEvent.DOM_DELTA_LINE,
    1322. 

  1322.             deltaX: 1.0,
    1323. 

  1323.             deltaY: 1.0,
    1324. 

  1324.             lineOrPageDeltaX: 1,
    1325. 

  1325.             lineOrPageDeltaY: 1
    1326. 

  1326.           };
    1327. 

  1327.           // wait scrolled actually.
    1328. 

  1328.           sendWheelAndWait(10, 10, event, function () {
    1329. 

  1329.             ok(Math.abs(gScrollableElement.scrollLeft - scrolledX) <= 1,
    1330. 

  1330.                "doTestZoomedScroll: zoomed horizontal scroll amount by line wheel event is different from normal, scrollLeft=" +
    1331. 

  1331.                  gScrollableElement.scrollLeft + ", scrolledX=" + scrolledX);
    1332. 

  1332.             ok(Math.abs(gScrollableElement.scrollTop - scrolledY) <= 1,
    1333. 

  1333.                "doTestZoomedScroll: zoomed vertical scroll amount by line wheel event is different from normal, scrollTop=" +
    1334. 

  1334.                  gScrollableElement.scrollTop + ", scrolledY=" + scrolledY);
    1335. 

  1335. 

  1336.             window.removeEventListener("MozMousePixelScroll", handler, true);
    1337. 

  1337. 

  1338.             synthesizeKey("0", { accelKey: true });
    1339. 

  1339.             onZoomReset(aCallback);
    1340. 

  1340.           });
    1341. 

  1341.         }, 20);
    1342. 

  1342.       });
    1343. 

  1343.     }, 20);
    1344. 

  1344.   }
    1345. 

  1345. 

  1346.   // XXX It's too difficult to test page scroll because the page scroll amount
    1347. 

  1347.   //     is computed by complex logic.
    1348. 

  1348. 

  1349.   prepareTestZoomedPixelScroll();
    1350. 

  1350. }
    1351. 

  1351. 

  1352. function doTestWholeScroll(aCallback)
    1353. 

  1353. {
    1354. 

  1354.   SpecialPowers.pushPrefEnv({"set": [
    1355. 

  1355.     ["mousewheel.default.delta_multiplier_x", 999999],
    1356. 

  1356.     ["mousewheel.default.delta_multiplier_y", 999999]]},
    1357. 

  1357.     function() { doTestWholeScroll2(aCallback); });
    1358. 

  1358. }
    1359. 

  1359. 

  1360. function doTestWholeScroll2(aCallback)
    1361. 

  1361. {
    1362. 

  1362.   const kTests = [
    1363. 

  1363.     { description: "try whole-scroll to top (line)",
    1364. 

  1364.       prepare: function () {
    1365. 

  1365.         gScrollableElement.scrollTop = 1000;
    1366. 

  1366.         gScrollableElement.scrollLeft = 1000;
    1367. 

  1367.       },
    1368. 

  1368.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1369. 

  1369.                deltaX: 0.0, deltaY: -1.0,
    1370. 

  1370.                lineOrPageDeltaX: 0, lineOrPageDeltaY: -1 },
    1371. 

  1371.       expectedScrollTop: 0,
    1372. 

  1372.       expectedScrollLeft: 1000
    1373. 

  1373.     },
    1374. 

  1374.     { description: "try whole-scroll to top when scrollTop is already top-most (line)",
    1375. 

  1375.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1376. 

  1376.                deltaX: 0.0, deltaY: -1.0,
    1377. 

  1377.                lineOrPageDeltaX: 0, lineOrPageDeltaY: -1 },
    1378. 

  1378.       expectedScrollTop: 0,
    1379. 

  1379.       expectedScrollLeft: 1000
    1380. 

  1380.     },
    1381. 

  1381.     { description: "try whole-scroll to bottom (line)",
    1382. 

  1382.       prepare: function () {
    1383. 

  1383.         gScrollableElement.scrollTop = 1000;
    1384. 

  1384.         gScrollableElement.scrollLeft = 1000;
    1385. 

  1385.       },
    1386. 

  1386.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1387. 

  1387.                deltaX: 0.0, deltaY: 1.0,
    1388. 

  1388.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 1 },
    1389. 

  1389.       expectedScrollTop: gScrollableElement.scrollTopMax,
    1390. 

  1390.       expectedScrollLeft: 1000
    1391. 

  1391.     },
    1392. 

  1392.     { description: "try whole-scroll to bottom when scrollTop is already bottom-most (line)",
    1393. 

  1393.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1394. 

  1394.                deltaX: 0, deltaY: 1.0,
    1395. 

  1395.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 1 },
    1396. 

  1396.       expectedScrollTop: gScrollableElement.scrollTopMax,
    1397. 

  1397.       expectedScrollLeft: 1000
    1398. 

  1398.     },
    1399. 

  1399.     { description: "try whole-scroll to left (line)",
    1400. 

  1400.       prepare: function () {
    1401. 

  1401.         gScrollableElement.scrollTop = 1000;
    1402. 

  1402.         gScrollableElement.scrollLeft = 1000;
    1403. 

  1403.       },
    1404. 

  1404.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1405. 

  1405.                deltaX: -1.0, deltaY: 0.0,
    1406. 

  1406.                lineOrPageDeltaX: -1, lineOrPageDeltaY: 0 },
    1407. 

  1407.       expectedScrollTop: 1000,
    1408. 

  1408.       expectedScrollLeft: 0
    1409. 

  1409.     },
    1410. 

  1410.     { description: "try whole-scroll to left when scrollLeft is already left-most (line)",
    1411. 

  1411.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1412. 

  1412.                deltaX: -1.0, deltaY: 0,
    1413. 

  1413.                lineOrPageDeltaX: -1, lineOrPageDeltaY: 0 },
    1414. 

  1414.       expectedScrollTop: 1000,
    1415. 

  1415.       expectedScrollLeft: 0
    1416. 

  1416.     },
    1417. 

  1417.     { description: "try whole-scroll to right (line)",
    1418. 

  1418.       prepare: function () {
    1419. 

  1419.         gScrollableElement.scrollTop = 1000;
    1420. 

  1420.         gScrollableElement.scrollLeft = 1000;
    1421. 

  1421.       },
    1422. 

  1422.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1423. 

  1423.                deltaX: 1.0, deltaY: 0.0,
    1424. 

  1424.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 0 },
    1425. 

  1425.       expectedScrollTop: 1000,
    1426. 

  1426.       expectedScrollLeft: gScrollableElement.scrollLeftMax
    1427. 

  1427.     },
    1428. 

  1428.     { description: "try whole-scroll to right when scrollLeft is already right-most (line)",
    1429. 

  1429.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1430. 

  1430.                deltaX: 1.0, deltaY: 0.0,
    1431. 

  1431.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 0 },
    1432. 

  1432.       expectedScrollTop: 1000,
    1433. 

  1433.       expectedScrollLeft: gScrollableElement.scrollLeftMax
    1434. 

  1434.     },
    1435. 

  1435. 

  1436. 

  1437.     { description: "try whole-scroll to top (pixel)",
    1438. 

  1438.       prepare: function () {
    1439. 

  1439.         gScrollableElement.scrollTop = 1000;
    1440. 

  1440.         gScrollableElement.scrollLeft = 1000;
    1441. 

  1441.       },
    1442. 

  1442.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    1443. 

  1443.                deltaX: 0.0, deltaY: -1.0,
    1444. 

  1444.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0 },
    1445. 

  1445.       expectedScrollTop: 0,
    1446. 

  1446.       expectedScrollLeft: 1000
    1447. 

  1447.     },
    1448. 

  1448.     { description: "try whole-scroll to top when scrollTop is already top-most (pixel)",
    1449. 

  1449.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    1450. 

  1450.                deltaX: 0.0, deltaY: -1.0,
    1451. 

  1451.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0 },
    1452. 

  1452.       expectedScrollTop: 0,
    1453. 

  1453.       expectedScrollLeft: 1000
    1454. 

  1454.     },
    1455. 

  1455.     { description: "try whole-scroll to bottom (pixel)",
    1456. 

  1456.       prepare: function () {
    1457. 

  1457.         gScrollableElement.scrollTop = 1000;
    1458. 

  1458.         gScrollableElement.scrollLeft = 1000;
    1459. 

  1459.       },
    1460. 

  1460.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    1461. 

  1461.                deltaX: 0.0, deltaY: 1.0,
    1462. 

  1462.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0 },
    1463. 

  1463.       expectedScrollTop: gScrollableElement.scrollTopMax,
    1464. 

  1464.       expectedScrollLeft: 1000
    1465. 

  1465.     },
    1466. 

  1466.     { description: "try whole-scroll to bottom when scrollTop is already bottom-most (pixel)",
    1467. 

  1467.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    1468. 

  1468.                deltaX: 0, deltaY: 1.0,
    1469. 

  1469.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0 },
    1470. 

  1470.       expectedScrollTop: gScrollableElement.scrollTopMax,
    1471. 

  1471.       expectedScrollLeft: 1000
    1472. 

  1472.     },
    1473. 

  1473.     { description: "try whole-scroll to left (pixel)",
    1474. 

  1474.       prepare: function () {
    1475. 

  1475.         gScrollableElement.scrollTop = 1000;
    1476. 

  1476.         gScrollableElement.scrollLeft = 1000;
    1477. 

  1477.       },
    1478. 

  1478.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    1479. 

  1479.                deltaX: -1.0, deltaY: 0.0,
    1480. 

  1480.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0 },
    1481. 

  1481.       expectedScrollTop: 1000,
    1482. 

  1482.       expectedScrollLeft: 0
    1483. 

  1483.     },
    1484. 

  1484.     { description: "try whole-scroll to left when scrollLeft is already left-most (pixel)",
    1485. 

  1485.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    1486. 

  1486.                deltaX: -1.0, deltaY: 0,
    1487. 

  1487.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0 },
    1488. 

  1488.       expectedScrollTop: 1000,
    1489. 

  1489.       expectedScrollLeft: 0
    1490. 

  1490.     },
    1491. 

  1491.     { description: "try whole-scroll to right (pixel)",
    1492. 

  1492.       prepare: function () {
    1493. 

  1493.         gScrollableElement.scrollTop = 1000;
    1494. 

  1494.         gScrollableElement.scrollLeft = 1000;
    1495. 

  1495.       },
    1496. 

  1496.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    1497. 

  1497.                deltaX: 1.0, deltaY: 0.0,
    1498. 

  1498.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0 },
    1499. 

  1499.       expectedScrollTop: 1000,
    1500. 

  1500.       expectedScrollLeft: gScrollableElement.scrollLeftMax
    1501. 

  1501.     },
    1502. 

  1502.     { description: "try whole-scroll to right when scrollLeft is already right-most (pixel)",
    1503. 

  1503.       event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
    1504. 

  1504.                deltaX: 1.0, deltaY: 0.0,
    1505. 

  1505.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 0 },
    1506. 

  1506.       expectedScrollTop: 1000,
    1507. 

  1507.       expectedScrollLeft: gScrollableElement.scrollLeftMax
    1508. 

  1508.     },
    1509. 

  1509. 

  1510. 

  1511.     { description: "try whole-scroll to top (page)",
    1512. 

  1512.       prepare: function () {
    1513. 

  1513.         gScrollableElement.scrollTop = 1000;
    1514. 

  1514.         gScrollableElement.scrollLeft = 1000;
    1515. 

  1515.       },
    1516. 

  1516.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    1517. 

  1517.                deltaX: 0.0, deltaY: -1.0,
    1518. 

  1518.                lineOrPageDeltaX: 0, lineOrPageDeltaY: -1 },
    1519. 

  1519.       expectedScrollTop: 0,
    1520. 

  1520.       expectedScrollLeft: 1000
    1521. 

  1521.     },
    1522. 

  1522.     { description: "try whole-scroll to top when scrollTop is already top-most (page)",
    1523. 

  1523.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    1524. 

  1524.                deltaX: 0.0, deltaY: -1.0,
    1525. 

  1525.                lineOrPageDeltaX: 0, lineOrPageDeltaY: -1 },
    1526. 

  1526.       expectedScrollTop: 0,
    1527. 

  1527.       expectedScrollLeft: 1000
    1528. 

  1528.     },
    1529. 

  1529.     { description: "try whole-scroll to bottom (page)",
    1530. 

  1530.       prepare: function () {
    1531. 

  1531.         gScrollableElement.scrollTop = 1000;
    1532. 

  1532.         gScrollableElement.scrollLeft = 1000;
    1533. 

  1533.       },
    1534. 

  1534.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    1535. 

  1535.                deltaX: 0.0, deltaY: 1.0,
    1536. 

  1536.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 1 },
    1537. 

  1537.       expectedScrollTop: gScrollableElement.scrollTopMax,
    1538. 

  1538.       expectedScrollLeft: 1000
    1539. 

  1539.     },
    1540. 

  1540.     { description: "try whole-scroll to bottom when scrollTop is already bottom-most (page)",
    1541. 

  1541.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    1542. 

  1542.                deltaX: 0, deltaY: 1.0,
    1543. 

  1543.                lineOrPageDeltaX: 0, lineOrPageDeltaY: 1 },
    1544. 

  1544.       expectedScrollTop: gScrollableElement.scrollTopMax,
    1545. 

  1545.       expectedScrollLeft: 1000
    1546. 

  1546.     },
    1547. 

  1547.     { description: "try whole-scroll to left (page)",
    1548. 

  1548.       prepare: function () {
    1549. 

  1549.         gScrollableElement.scrollTop = 1000;
    1550. 

  1550.         gScrollableElement.scrollLeft = 1000;
    1551. 

  1551.       },
    1552. 

  1552.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    1553. 

  1553.                deltaX: -1.0, deltaY: 0.0,
    1554. 

  1554.                lineOrPageDeltaX: -1, lineOrPageDeltaY: 0 },
    1555. 

  1555.       expectedScrollTop: 1000,
    1556. 

  1556.       expectedScrollLeft: 0
    1557. 

  1557.     },
    1558. 

  1558.     { description: "try whole-scroll to left when scrollLeft is already left-most (page)",
    1559. 

  1559.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    1560. 

  1560.                deltaX: -1.0, deltaY: 0,
    1561. 

  1561.                lineOrPageDeltaX: -1, lineOrPageDeltaY: 0 },
    1562. 

  1562.       expectedScrollTop: 1000,
    1563. 

  1563.       expectedScrollLeft: 0
    1564. 

  1564.     },
    1565. 

  1565.     { description: "try whole-scroll to right (page)",
    1566. 

  1566.       prepare: function () {
    1567. 

  1567.         gScrollableElement.scrollTop = 1000;
    1568. 

  1568.         gScrollableElement.scrollLeft = 1000;
    1569. 

  1569.       },
    1570. 

  1570.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    1571. 

  1571.                deltaX: 1.0, deltaY: 0.0,
    1572. 

  1572.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 0 },
    1573. 

  1573.       expectedScrollTop: 1000,
    1574. 

  1574.       expectedScrollLeft: gScrollableElement.scrollLeftMax
    1575. 

  1575.     },
    1576. 

  1576.     { description: "try whole-scroll to right when scrollLeft is already right-most (page)",
    1577. 

  1577.       event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
    1578. 

  1578.                deltaX: 1.0, deltaY: 0.0,
    1579. 

  1579.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 0 },
    1580. 

  1580.       expectedScrollTop: 1000,
    1581. 

  1581.       expectedScrollLeft: gScrollableElement.scrollLeftMax
    1582. 

  1582.     },
    1583. 

  1583.   ];
    1584. 

  1584. 

  1585.   var index = 0;
    1586. 

  1586. 

  1587.   function doIt()
    1588. 

  1588.   {
    1589. 

  1589.     const kTest = kTests[index];
    1590. 

  1590.     if (kTest.prepare) {
    1591. 

  1591.       kTest.prepare();
    1592. 

  1592.     }
    1593. 

  1593.     sendWheelAndWait(10, 10, kTest.event, function () {
    1594. 

  1594.       is(gScrollableElement.scrollTop, kTest.expectedScrollTop,
    1595. 

  1595.          "doTestWholeScroll, " + kTest.description + ": unexpected scrollTop");
    1596. 

  1596.       is(gScrollableElement.scrollLeft, kTest.expectedScrollLeft,
    1597. 

  1597.          "doTestWholeScroll, " + kTest.description + ": unexpected scrollLeft");
    1598. 

  1598.       if (++index == kTests.length) {
    1599. 

  1599.         SimpleTest.executeSoon(aCallback);
    1600. 

  1600.       } else {
    1601. 

  1601.         doIt();
    1602. 

  1602.       }
    1603. 

  1603.     });
    1604. 

  1604.   }
    1605. 

  1605.   doIt();
    1606. 

  1606. }
    1607. 

  1607. 

  1608. function doTestActionOverride(aCallback)
    1609. 

  1609. {
    1610. 

  1610.   const kNoScroll    = 0x00;
    1611. 

  1611.   const kScrollUp    = 0x01;
    1612. 

  1612.   const kScrollDown  = 0x02;
    1613. 

  1613.   const kScrollLeft  = 0x04;
    1614. 

  1614.   const kScrollRight = 0x08;
    1615. 

  1615. 

  1616.   const kTests = [
    1617. 

  1617.     { action: 1, override_x: -1,
    1618. 

  1618.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1619. 

  1619.                deltaX: 1.0, deltaY: 1.0,
    1620. 

  1620.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
    1621. 

  1621.       expected: kScrollDown | kScrollRight
    1622. 

  1622.     },
    1623. 

  1623.     { action: 1, override_x: 0,
    1624. 

  1624.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1625. 

  1625.                deltaX: 1.0, deltaY: 1.0,
    1626. 

  1626.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
    1627. 

  1627.       expected: kScrollDown | kScrollRight
    1628. 

  1628.     },
    1629. 

  1629.     { action: 1, override_x: 1,
    1630. 

  1630.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1631. 

  1631.                deltaX: 1.0, deltaY: 1.0,
    1632. 

  1632.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
    1633. 

  1633.       expected: kScrollDown | kScrollRight
    1634. 

  1634.     },
    1635. 

  1635.     { action: 0, override_x: -1,
    1636. 

  1636.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1637. 

  1637.                deltaX: 1.0, deltaY: 1.0,
    1638. 

  1638.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
    1639. 

  1639.       expected: kNoScroll
    1640. 

  1640.     },
    1641. 

  1641.     { action: 0, override_x: 0,
    1642. 

  1642.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1643. 

  1643.                deltaX: 1.0, deltaY: 1.0,
    1644. 

  1644.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
    1645. 

  1645.       expected: kNoScroll
    1646. 

  1646.     },
    1647. 

  1647.     { action: 0, override_x: 1,
    1648. 

  1648.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1649. 

  1649.                deltaX: 1.0, deltaY: 1.0,
    1650. 

  1650.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
    1651. 

  1651.       expected: kNoScroll
    1652. 

  1652.     },
    1653. 

  1653.     { action: 1, override_x: -1,
    1654. 

  1654.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1655. 

  1655.                deltaX: 1.0, deltaY: 0.5,
    1656. 

  1656.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
    1657. 

  1657.       expected: kScrollDown | kScrollRight
    1658. 

  1658.     },
    1659. 

  1659.     { action: 1, override_x: 0,
    1660. 

  1660.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1661. 

  1661.                deltaX: 1.0, deltaY: 0.5,
    1662. 

  1662.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
    1663. 

  1663.       expected: kNoScroll
    1664. 

  1664.     },
    1665. 

  1665.     { action: 1, override_x: 1,
    1666. 

  1666.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1667. 

  1667.                deltaX: 1.0, deltaY: 0.5,
    1668. 

  1668.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
    1669. 

  1669.       expected: kScrollDown | kScrollRight
    1670. 

  1670.     },
    1671. 

  1671.     { action: 0, override_x: -1,
    1672. 

  1672.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1673. 

  1673.                deltaX: 1.0, deltaY: 0.5,
    1674. 

  1674.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
    1675. 

  1675.       expected: kNoScroll
    1676. 

  1676.     },
    1677. 

  1677.     { action: 0, override_x: 0,
    1678. 

  1678.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1679. 

  1679.                deltaX: 1.0, deltaY: 0.5,
    1680. 

  1680.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
    1681. 

  1681.       expected: kNoScroll
    1682. 

  1682.     },
    1683. 

  1683.     { action: 0, override_x: 1,
    1684. 

  1684.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1685. 

  1685.                deltaX: 1.0, deltaY: 0.5,
    1686. 

  1686.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
    1687. 

  1687.       expected: kScrollDown | kScrollRight
    1688. 

  1688.     },
    1689. 

  1689.     { action: 1, override_x: -1,
    1690. 

  1690.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1691. 

  1691.                deltaX: 0.5, deltaY: 1.0,
    1692. 

  1692.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
    1693. 

  1693.       expected: kScrollDown | kScrollRight
    1694. 

  1694.     },
    1695. 

  1695.     { action: 1, override_x: 0,
    1696. 

  1696.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1697. 

  1697.                deltaX: 0.5, deltaY: 1.0,
    1698. 

  1698.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
    1699. 

  1699.       expected: kScrollDown | kScrollRight
    1700. 

  1700.     },
    1701. 

  1701.     { action: 1, override_x: 1,
    1702. 

  1702.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1703. 

  1703.                deltaX: 0.5, deltaY: 1.0,
    1704. 

  1704.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
    1705. 

  1705.       expected: kScrollDown | kScrollRight
    1706. 

  1706.     },
    1707. 

  1707.     { action: 0, override_x: -1,
    1708. 

  1708.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1709. 

  1709.                deltaX: 0.5, deltaY: 1.0,
    1710. 

  1710.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
    1711. 

  1711.       expected: kNoScroll
    1712. 

  1712.     },
    1713. 

  1713.     { action: 0, override_x: 0,
    1714. 

  1714.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1715. 

  1715.                deltaX: 0.5, deltaY: 1.0,
    1716. 

  1716.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
    1717. 

  1717.       expected: kNoScroll
    1718. 

  1718.     },
    1719. 

  1719.     { action: 0, override_x: 1,
    1720. 

  1720.       event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
    1721. 

  1721.                deltaX: 0.5, deltaY: 1.0,
    1722. 

  1722.                lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
    1723. 

  1723.       expected: kNoScroll
    1724. 

  1724.     },
    1725. 

  1725.   ];
    1726. 

  1726. 

  1727.   var index = 0;
    1728. 

  1728. 

  1729.   function doIt()
    1730. 

  1730.   {
    1731. 

  1731.     const kTest = kTests[index];
    1732. 

  1732.     SpecialPowers.pushPrefEnv({"set": [
    1733. 

  1733.       ["mousewheel.default.action", kTest.action],
    1734. 

  1734.       ["mousewheel.default.action.override_x", kTest.override_x]]},
    1735. 

  1735.       doIt2
    1736. 

  1736.     );
    1737. 

  1737.   }
    1738. 

  1738. 

  1739.   function doIt2()
    1740. 

  1740.   {
    1741. 

  1741.     const kTest = kTests[index];
    1742. 

  1742.     description = "doTestActionOverride(action=" + kTest.action + ", " +
    1743. 

  1743.                   "override_x=" + kTest.override_x + ", " +
    1744. 

  1744.                   "deltaX=" + kTest.event.deltaX + ", " +
    1745. 

  1745.                   "deltaY=" + kTest.event.deltaY + "): ";
    1746. 

  1746.     gScrollableElement.scrollTop = 1000;
    1747. 

  1747.     gScrollableElement.scrollLeft = 1000;
    1748. 

  1748.     sendWheelAndWait(10, 10, kTest.event, function () {
    1749. 

  1749.       if (kTest.expected & kScrollUp) {
    1750. 

  1750.         ok(gScrollableElement.scrollTop < 1000, description + "not scrolled up, got " + gScrollableElement.scrollTop);
    1751. 

  1751.       } else if (kTest.expected & kScrollDown) {
    1752. 

  1752.         ok(gScrollableElement.scrollTop > 1000, description + "not scrolled down, got " + gScrollableElement.scrollTop);
    1753. 

  1753.       } else {
    1754. 

  1754.         is(gScrollableElement.scrollTop, 1000, description + "scrolled vertical");
    1755. 

  1755.       }
    1756. 

  1756.       if (kTest.expected & kScrollLeft) {
    1757. 

  1757.         ok(gScrollableElement.scrollLeft < 1000, description + "not scrolled to left, got " + gScrollableElement.scrollLeft);
    1758. 

  1758.       } else if (kTest.expected & kScrollRight) {
    1759. 

  1759.         ok(gScrollableElement.scrollLeft > 1000, description + "not scrolled to right, got " + gScrollableElement.scrollLeft);
    1760. 

  1760.       } else {
    1761. 

  1761.         is(gScrollableElement.scrollLeft, 1000, description + "scrolled horizontal");
    1762. 

  1762.       }
    1763. 

  1763.       if (++index == kTests.length) {
    1764. 

  1764.         SimpleTest.executeSoon(aCallback);
    1765. 

  1765.       } else {
    1766. 

  1766.         doIt();
    1767. 

  1767.       }
    1768. 

  1768.     });
    1769. 

  1769.   }
    1770. 

  1770.   doIt();
    1771. 

  1771. }
    1772. 

  1772. 

  1773. function runTests()
    1774. 

  1774. {
    1775. 

  1775.   SpecialPowers.pushPrefEnv({"set": [
    1776. 

  1776.     ["test.events.async.enabled", true],
    1777. 

  1777.     ["general.smoothScroll", false],
    1778. 

  1778.     ["mousewheel.default.action", 1],      // scroll
    1779. 

  1779.     ["mousewheel.default.action.override_x", -1],
    1780. 

  1780.     ["mousewheel.with_shift.action", 2],   // history
    1781. 

  1781.     ["mousewheel.with_shift.action.override_x", -1],
    1782. 

  1782.     ["mousewheel.with_control.action", 3], // zoom
    1783. 

  1783.     ["mousewheel.with_control.action.override_x", -1]]},
    1784. 

  1784.     runTests2);
    1785. 

  1785. }
    1786. 

  1786. 

  1787. function runTests2()
    1788. 

  1788. {
    1789. 

  1789.   const kSettings = [
    1790. 

  1790.     { description: "all delta values are not customized",
    1791. 

  1791.       deltaMultiplierX:  1.0, deltaMultiplierY:  1.0, deltaMultiplierZ:  1.0 },
    1792. 

  1792.     { description: "deltaX is reverted",
    1793. 

  1793.       deltaMultiplierX: -1.0, deltaMultiplierY:  1.0, deltaMultiplierZ:  1.0 },
    1794. 

  1794.     { description: "deltaY is reverted",
    1795. 

  1795.       deltaMultiplierX:  1.0, deltaMultiplierY: -1.0, deltaMultiplierZ:  1.0 },
    1796. 

  1796.     { description: "deltaZ is reverted",
    1797. 

  1797.       deltaMultiplierX:  1.0, deltaMultiplierY:  1.0, deltaMultiplierZ: -1.0 },
    1798. 

  1798.     { description: "deltaX is 2.0",
    1799. 

  1799.       deltaMultiplierX:  2.0, deltaMultiplierY:  1.0, deltaMultiplierZ:  1.0 },
    1800. 

  1800.     { description: "deltaY is 2.0",
    1801. 

  1801.       deltaMultiplierX:  1.0, deltaMultiplierY:  2.0, deltaMultiplierZ:  1.0 },
    1802. 

  1802.     { description: "deltaZ is 2.0",
    1803. 

  1803.       deltaMultiplierX:  1.0, deltaMultiplierY:  1.0, deltaMultiplierZ:  2.0 },
    1804. 

  1804.     { description: "deltaX is -2.0",
    1805. 

  1805.       deltaMultiplierX: -2.0, deltaMultiplierY:  1.0, deltaMultiplierZ:  1.0 },
    1806. 

  1806.     { description: "deltaY is -2.0",
    1807. 

  1807.       deltaMultiplierX:  1.0, deltaMultiplierY: -2.0, deltaMultiplierZ:  1.0 },
    1808. 

  1808.     { description: "deltaZ is -2.0",
    1809. 

  1809.       deltaMultiplierX:  1.0, deltaMultiplierY:  1.0, deltaMultiplierZ: -2.0 },
    1810. 

  1810.   ];
    1811. 

  1811. 

  1812.   var index = 0;
    1813. 

  1813. 

  1814.   function doTest() {
    1815. 

  1815.     setDeltaMultiplierSettings(kSettings[index], function () {
    1816. 

  1816.       doTestScroll(kSettings[index], function () {
    1817. 

  1817.         doTestZoom(kSettings[index], function() {
    1818. 

  1818.           if (++index == kSettings.length) {
    1819. 

  1819.             setDeltaMultiplierSettings(kSettings[0], function() {
    1820. 

  1820.               doTestZoomedScroll(function() {
    1821. 

  1821.                 doTestWholeScroll(function() {
    1822. 

  1822.                   doTestActionOverride(function() {
    1823. 

  1823.                     finishTests();
    1824. 

  1824.                   });
    1825. 

  1825.                 });
    1826. 

  1826.               });
    1827. 

  1827.             });
    1828. 

  1828.           } else {
    1829. 

  1829.             doTest();
    1830. 

  1830.           }
    1831. 

  1831.         });
    1832. 

  1832.       });
    1833. 

  1833.     });
    1834. 

  1834.   }
    1835. 

  1835.   doTest();
    1836. 

  1836. }
    1837. 

  1837. 

  1838. function finishTests()
    1839. 

  1839. {
    1840. 

  1840.   winUtils.restoreNormalRefresh();
    1841. 

  1841. 

  1842.   window.opener.finish();
    1843. 

  1843. }
    1844. 

  1844. 

  1845. </script>
    1846. 

  1846. </pre>
    1847. 

  1847. </body>
    1848. 

  1848. </html>
    1849. 

  1849.