The Tor Browser: comparison widget/tests/window_mouse_scroll

--1:000000000000
+:02999cdf5c89
+<html lang="en-US"
+style="font-family: Arial; font-size: 10px; line-height: 16px;">
+<head>
+<title>Test for mouse scroll handling on Windows</title>
+<script type="text/javascript"
+src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+<script type="text/javascript"
+src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"></script>
+<script type="text/javascript"
+src="chrome://mochikit/content/tests/SimpleTest/ChromeUtils.js"></script>
+<link rel="stylesheet" type="text/css"
+href="chrome://mochikit/content/tests/SimpleTest/test.css" />
+</head>
+<body onunload="onUnload();">
+<div id="display" style="width: 5000px; height: 5000px;">
+<p id="p1" style="font-size: 16px; width: 100px; height: 100px;">1st &lt;p&gt;.</p>
+<p id="p2" style="font-size: 32px; width: 100px; height: 100px;">2nd &lt;p&gt;.</p>
+</div>
+<script class="testbody" type="application/javascript">
+window.opener.wrappedJSObject.SimpleTest.waitForFocus(prepareTests, window);
+const nsIDOMWindowUtils = Components.interfaces.nsIDOMWindowUtils;
+const WHEEL_PAGESCROLL = 4294967295;
+const WM_VSCROLL     = 0x0115;
+const WM_HSCROLL     = 0x0114;
+const WM_MOUSEWHEEL  = 0x020A;
+const WM_MOUSEHWHEEL = 0x020E;
+const SB_LINEUP    = 0;
+const SB_LINELEFT  = 0;
+const SB_LINEDOWN  = 1;
+const SB_LINERIGHT = 1;
+const SB_PAGEUP    = 2;
+const SB_PAGELEFT  = 2;
+const SB_PAGEDOWN  = 3;
+const SB_PAGERIGHT = 3;
+const SHIFT_L = 0x0100;
+const SHIFT_R = 0x0200;
+const CTRL_L  = 0x0400;
+const CTRL_R  = 0x0800;
+const ALT_L   = 0x1000;
+const ALT_R   = 0x2000;
+const DOM_PAGE_SCROLL_DELTA = 32768;
+const kSystemScrollSpeedOverridePref = "mousewheel.system_scroll_override_on_root_content.enabled";
+const kAltKeyActionPref         = "mousewheel.with_alt.action";
+const kCtrlKeyActionPref        = "mousewheel.with_control.action";
+const kShiftKeyActionPref       = "mousewheel.with_shift.action";
+const kWinKeyActionPref         = "mousewheel.with_win.action";
+const kAltKeyDeltaMultiplierXPref   = "mousewheel.with_alt.delta_multiplier_x";
+const kAltKeyDeltaMultiplierYPref   = "mousewheel.with_alt.delta_multiplier_y";
+const kCtrlKeyDeltaMultiplierXPref  = "mousewheel.with_control.delta_multiplier_x";
+const kCtrlKeyDeltaMultiplierYPref  = "mousewheel.with_control.delta_multiplier_y";
+const kShiftKeyDeltaMultiplierXPref = "mousewheel.with_shift.delta_multiplier_x";
+const kShiftKeyDeltaMultiplierYPref = "mousewheel.with_shift.delta_multiplier_y";
+const kWinKeyDeltaMultiplierXPref   = "mousewheel.with_win.delta_multiplier_x";
+const kWinKeyDeltaMultiplierYPref   = "mousewheel.with_win.delta_multiplier_y";
+const kEmulateWheelByWMSCROLLPref = "mousewheel.emulate_at_wm_scroll";
+const kVAmountPref                = "mousewheel.windows.vertical_amount_override";
+const kHAmountPref                = "mousewheel.windows.horizontal_amount_override";
+const kTimeoutPref                = "mousewheel.windows.transaction.timeout";
+const kMouseLineScrollEvent  = "DOMMouseScroll";
+const kMousePixelScrollEvent = "MozMousePixelScroll";
+const kVAxis = Components.interfaces.nsIDOMMouseScrollEvent.VERTICAL_AXIS;
+const kHAxis = Components.interfaces.nsIDOMMouseScrollEvent.HORIZONTAL_AXIS;
+var gLineHeight = 0;
+var gCharWidth  = 0;
+var gPageHeight = 0;
+var gPageWidth  = 0;
+var gP1 = document.getElementById("p1");
+var gP2 = document.getElementById("p2");
+var gOtherWindow;
+function ok(aCondition, aMessage)
+{
+window.opener.wrappedJSObject.SimpleTest.ok(aCondition, aMessage);
+}
+function is(aLeft, aRight, aMessage)
+{
+window.opener.wrappedJSObject.SimpleTest.is(aLeft, aRight, aMessage);
+}
+function isnot(aLeft, aRight, aMessage)
+{
+window.opener.wrappedJSObject.SimpleTest.isnot(aLeft, aRight, aMessage);
+}
+function todo_is(aLeft, aRight, aMessage)
+{
+window.opener.wrappedJSObject.SimpleTest.todo_is(aLeft, aRight, aMessage);
+}
+function onUnload()
+{
+SpecialPowers.clearUserPref(kAltKeyActionPref);
+SpecialPowers.clearUserPref(kCtrlKeyActionPref);
+SpecialPowers.clearUserPref(kShiftKeyActionPref);
+SpecialPowers.clearUserPref(kWinKeyActionPref);
+SpecialPowers.clearUserPref(kAltKeyDeltaMultiplierXPref);
+SpecialPowers.clearUserPref(kAltKeyDeltaMultiplierYPref);
+SpecialPowers.clearUserPref(kCtrlKeyDeltaMultiplierXPref);
+SpecialPowers.clearUserPref(kCtrlKeyDeltaMultiplierYPref);
+SpecialPowers.clearUserPref(kShiftKeyDeltaMultiplierXPref);
+SpecialPowers.clearUserPref(kShiftKeyDeltaMultiplierYPref);
+SpecialPowers.clearUserPref(kWinKeyDeltaMultiplierXPref);
+SpecialPowers.clearUserPref(kWinKeyDeltaMultiplierYPref);
+SpecialPowers.clearUserPref(kSystemScrollSpeedOverridePref);
+SpecialPowers.clearUserPref(kEmulateWheelByWMSCROLLPref);
+SpecialPowers.clearUserPref(kVAmountPref);
+SpecialPowers.clearUserPref(kHAmountPref);
+SpecialPowers.clearUserPref(kTimeoutPref);
+window.opener.wrappedJSObject.SimpleTest.finish();
+}
+function getWindowUtils(aWindow)
+{
+if (!aWindow) {
+aWindow = window;
+}
+return aWindow.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
+.getInterface(nsIDOMWindowUtils);
+}
+function getPointInScreen(aElement, aWindow)
+{
+if (!aWindow) {
+aWindow = window;
+}
+var bounds = aElement.getBoundingClientRect();
+return { x: bounds.left + aWindow.mozInnerScreenX,
+y: bounds.top + aWindow.mozInnerScreenY };
+}
+function cut(aNum)
+{
+return (aNum >= 0) ? Math.floor(aNum) : Math.ceil(aNum);
+}
+/**
+* Make each steps for the tests in following arrays in global scope. Each item
+* of the arrays will be executed after previous test is finished.
+*
+* description:
+*   Set the description of the test.  This will be used for the message of is()
+*   or the others.
+*
+* message:
+*   aNativeMessage of nsIDOMWindowUtils.sendNativeMouseScrollEvent().
+*   Must be WM_MOUSEWHEEL, WM_MOUSEHWHEEL, WM_VSCROLL or WM_HSCROLL.
+*
+* delta:
+*   The native delta value for WM_MOUSEWHEEL or WM_MOUSEHWHEEL.
+*   Or one of the SB_* const value for WM_VSCROLL or WM_HSCROLL.
+*
+* target:
+*   The target element, under the mouse cursor.
+*
+* window:
+*   The window which is used for getting nsIDOMWindowUtils.
+*
+* modifiers:
+*   Pressed modifier keys, 0 means no modifier key is pressed.
+*   Otherwise, one or more values of SHIFT_L, SHIFT_R, CTRL_L, CTRL_R,
+*   ALT_L or ALT_R.
+*
+* additionalFlags:
+*   aAdditionalFlags of nsIDOMWindowUtils.sendNativeMouseScrollEvent().
+*   See the document of nsIDOMWindowUtils for the detail of the values.
+*
+* onLineScrollEvent:
+*   Must be a function or null.
+*   If the value is a function, it will be called when DOMMouseScroll event
+*   is received by the synthesized event.
+*   If return true, the common checks are canceled.
+*
+* onPixelScrollEvent:
+*   Must be a function or null.
+*   If the value is a function, it will be called when MozMousePixelScroll
+*   event is received by the synthesized event.
+*   If return true, the common checks are canceled.
+*
+* expected:
+*   Must not be null and this must have:
+*     axis:
+*       kVAxis if the synthesized event causes vertical scroll. Otherwise,
+*       it causes horizontal scroll, kHAxis.
+*     lines:
+*       Integer value which is expected detail attribute value of
+*       DOMMouseScroll.  If the event shouldn't be fired, must be 0.
+*     pixels:
+*       Integer value or a function which returns double value.  The value is
+*       expected detail attribute value of MozMousePixelScroll.
+*       If the event shouldn't be fired, must be 0.
+*
+*   Note that if both lines and pixels are 0, the test framework waits
+*   a few seconds. After that, go to next test.
+*
+* init:
+*   Must be a function or null.  If this value is a function, it's called
+*   before synthesizing the native event.
+*
+* finish:
+*   Must be a function or null.  If this value is a function, it's called
+*   after received all expected events or timeout if no events are expected.
+*/
+// First, get the computed line height, char width, page height and page width.
+var gPreparingSteps = [
+{ description: "Preparing gLineHeight",
+message: WM_MOUSEWHEEL, delta: -120,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+onLineScrollEvent: function (aEvent) {
+return true;
+},
+onPixelScrollEvent: function (aEvent) {
+gLineHeight = aEvent.detail;
+return true;
+},
+expected: {
+axis: kVAxis, lines: 1, pixels: 1,
+},
+init: function () {
+SpecialPowers.setIntPref(kVAmountPref, 1);
+SpecialPowers.setIntPref(kHAmountPref, 1);
+},
+},
+{ description: "Preparing gCharWidth",
+message: WM_MOUSEHWHEEL, delta: 120,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+onLineScrollEvent: function (aEvent) {
+return true;
+},
+onPixelScrollEvent: function (aEvent) {
+gCharWidth = aEvent.detail;
+return true;
+},
+expected: {
+axis: kVAxis, lines: 1, pixels: 1,
+},
+},
+{ description: "Preparing gPageHeight",
+message: WM_MOUSEWHEEL, delta: -120,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+onLineScrollEvent: function (aEvent) {
+return true;
+},
+onPixelScrollEvent: function (aEvent) {
+gPageHeight = aEvent.detail;
+return true;
+},
+expected: {
+axis: kHAxis, lines: 1, pixels: 1,
+},
+init: function () {
+SpecialPowers.setIntPref(kVAmountPref, 0xFFFF);
+SpecialPowers.setIntPref(kHAmountPref, 0xFFFF);
+},
+},
+{ description: "Preparing gPageWidth",
+message: WM_MOUSEHWHEEL, delta: 120,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+onLineScrollEvent: function (aEvent) {
+return true;
+},
+onPixelScrollEvent: function (aEvent) {
+gPageWidth = aEvent.detail;
+return true;
+},
+expected: {
+axis: kHAxis, lines: 1, pixels: 1,
+},
+finish: function () {
+ok(gLineHeight > 0, "gLineHeight isn't positive got " + gLineHeight);
+ok(gCharWidth > 0, "gCharWidth isn't positive got " + gCharWidth);
+ok(gPageHeight > 0, "gPageHeight isn't positive got " + gPageHeight);
+ok(gPageWidth > 0, "gPageWidth isn't positive got " + gPageWidth);
+ok(gPageHeight > gLineHeight,
+"gPageHeight must be larger than gLineHeight");
+ok(gPageWidth > gCharWidth,
+"gPageWidth must be larger than gCharWidth");
+runNextTest(gBasicTests, 0)
+}
+},
+];
+var gBasicTests = [
+// Widget shouldn't dispatch a pixel event if the delta can be devided by
+// lines to be scrolled.  However, pixel events should be fired by ESM.
+{ description: "WM_MOUSEWHEEL, -120, 3 lines",
+message: WM_MOUSEWHEEL, delta: -120,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: 3, pixels: function () { return gLineHeight * 3; },
+},
+init: function () {
+SpecialPowers.setIntPref(kVAmountPref, 3);
+SpecialPowers.setIntPref(kHAmountPref, 3);
+},
+},
+{ description: "WM_MOUSEWHEEL, 120, -3 lines",
+message: WM_MOUSEWHEEL, delta: 120,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: -3, pixels: function () { return gLineHeight * -3; },
+},
+},
+{ description: "WM_MOUSEHWHEEL, 120, 3 chars",
+message: WM_MOUSEHWHEEL, delta: 120,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: 3, pixels: function () { return gCharWidth * 3; },
+},
+},
+{ description: "WM_MOUSEHWHEEL, -120, -3 chars",
+message: WM_MOUSEHWHEEL, delta: -120,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: -3, pixels: function () { return gCharWidth * -3; },
+},
+},
+// Pixel scroll event should be fired always but line scroll event should be
+// fired only when accumulated delta value is over a line.
+{ description: "WM_MOUSEWHEEL, -20, 0.5 lines",
+message: WM_MOUSEWHEEL, delta: -20,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: 0, pixels: function () { return gLineHeight / 2; },
+},
+},
+{ description: "WM_MOUSEWHEEL, -20, 0.5 lines (pending: 0.5 lines)",
+message: WM_MOUSEWHEEL, delta: -20,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: 1, pixels: function () { return gLineHeight / 2; },
+},
+},
+{ description: "WM_MOUSEWHEEL, -20, 0.5 lines",
+message: WM_MOUSEWHEEL, delta: -20,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: 0, pixels: function () { return gLineHeight / 2; },
+},
+},
+{ description: "WM_MOUSEWHEEL, 20, -0.5 lines (pending: 0.5 lines)",
+message: WM_MOUSEWHEEL, delta: 20,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: 0, pixels: function () { return gLineHeight / -2; },
+},
+},
+{ description: "WM_MOUSEWHEEL, 20, -0.5 lines (pending: -0.5 lines)",
+message: WM_MOUSEWHEEL, delta: 20,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: -1, pixels: function () { return -gLineHeight / 2; },
+},
+},
+{ description: "WM_MOUSEWHEEL, 20, -0.5 lines",
+message: WM_MOUSEWHEEL, delta: 20,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: 0, pixels: function () { return gLineHeight / -2; },
+},
+},
+{ description: "WM_MOUSEHWHEEL, 20, 0.5 chars",
+message: WM_MOUSEHWHEEL, delta: 20,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: 0, pixels: function () { return gCharWidth / 2; },
+},
+},
+{ description: "WM_MOUSEHWHEEL, 20, 0.5 chars (pending: 0.5 chars)",
+message: WM_MOUSEHWHEEL, delta: 20,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: 1, pixels: function () { return gCharWidth / 2; },
+},
+},
+{ description: "WM_MOUSEHWHEEL, 20, 0.5 chars",
+message: WM_MOUSEHWHEEL, delta: 20,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: 0, pixels: function () { return gCharWidth / 2; },
+},
+},
+{ description: "WM_MOUSEHWHEEL, -20, -0.5 chars (pending: 0.5 chars)",
+message: WM_MOUSEHWHEEL, delta: -20,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: 0, pixels: function () { return gCharWidth / -2; },
+},
+},
+{ description: "WM_MOUSEHWHEEL, -20, -0.5 chars (pending: -0.5 chars)",
+message: WM_MOUSEHWHEEL, delta: -20,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: -1, pixels: function () { return -gCharWidth / 2; },
+},
+},
+{ description: "WM_MOUSEHWHEEL, -20, -0.5 chars",
+message: WM_MOUSEHWHEEL, delta: -20,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: 0, pixels: function () { return gCharWidth / -2; },
+},
+},
+// Even if the mouse cursor is an element whose font-size is different than
+// the scrollable element, the pixel scroll amount shouldn't be changed.
+// Widget shouldn't dispatch a pixel event if the delta can be devided by
+// lines to be scrolled.  However, pixel events should be fired by ESM.
+{ description: "WM_MOUSEWHEEL, -120, 3 lines, on the other div whose font-size is larger",
+message: WM_MOUSEWHEEL, delta: -120,
+target: gP2, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: 3, pixels: function () { return gLineHeight * 3; },
+},
+},
+{ description: "WM_MOUSEWHEEL, 120, -3 lines, on the other div whose font-size is larger",
+message: WM_MOUSEWHEEL, delta: 120,
+target: gP2, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: -3, pixels: function () { return gLineHeight * -3; },
+},
+},
+{ description: "WM_MOUSEHWHEEL, 120, 3 chars, on the other div whose font-size is larger",
+message: WM_MOUSEHWHEEL, delta: 120,
+target: gP2, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: 3, pixels: function () { return gCharWidth * 3; },
+},
+},
+{ description: "WM_MOUSEHWHEEL, -120, -3 chars, on the other div whose font-size is larger",
+message: WM_MOUSEHWHEEL, delta: -120,
+target: gP2, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: -3, pixels: function () { return gCharWidth * -3; },
+},
+},
+// Modifier key tests
+{ description: "WM_MOUSEWHEEL, -40, 1 line with left Shift",
+message: WM_MOUSEWHEEL, delta: -40,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: SHIFT_L,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: 1, pixels: function () { return gLineHeight; },
+},
+},
+{ description: "WM_MOUSEWHEEL, -40, 1 line with right Shift",
+message: WM_MOUSEWHEEL, delta: -40,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: SHIFT_R,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: 1, pixels: function () { return gLineHeight; },
+},
+},
+{ description: "WM_MOUSEWHEEL, -40, 1 line with left Ctrl",
+message: WM_MOUSEWHEEL, delta: -40,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: CTRL_L,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: 1, pixels: function () { return gLineHeight; },
+},
+},
+{ description: "WM_MOUSEWHEEL, -40, 1 line with right Ctrl",
+message: WM_MOUSEWHEEL, delta: -40,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: CTRL_R,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: 1, pixels: function () { return gLineHeight; },
+},
+},
+{ description: "WM_MOUSEWHEEL, -40, 1 line with left Alt",
+message: WM_MOUSEWHEEL, delta: -40,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: ALT_L,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: 1, pixels: function () { return gLineHeight; },
+},
+},
+{ description: "WM_MOUSEWHEEL, -40, 1 line with right Alt",
+message: WM_MOUSEWHEEL, delta: -40,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: ALT_R,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: 1, pixels: function () { return gLineHeight; },
+},
+},
+{ description: "WM_MOUSEHWHEEL, 40, 1 character with left Shift",
+message: WM_MOUSEHWHEEL, delta: 40,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: SHIFT_L,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: 1, pixels: function () { return gCharWidth; },
+},
+},
+{ description: "WM_MOUSEHWHEEL, 40, 1 character with right Shift",
+message: WM_MOUSEHWHEEL, delta: 40,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: SHIFT_R,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: 1, pixels: function () { return gCharWidth; },
+},
+},
+{ description: "WM_MOUSEHWHEEL, 40, 1 character with left Ctrl",
+message: WM_MOUSEHWHEEL, delta: 40,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: CTRL_L,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: 1, pixels: function () { return gCharWidth; },
+},
+},
+{ description: "WM_MOUSEHWHEEL, 40, 1 character with right Ctrl",
+message: WM_MOUSEHWHEEL, delta: 40,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: CTRL_R,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: 1, pixels: function () { return gCharWidth; },
+},
+},
+{ description: "WM_MOUSEHWHEEL, 40, 1 character with left Alt",
+message: WM_MOUSEHWHEEL, delta: 40,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: ALT_L,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: 1, pixels: function () { return gCharWidth; },
+},
+},
+{ description: "WM_MOUSEHWHEEL, 40, 1 character with right Alt",
+message: WM_MOUSEHWHEEL, delta: 40,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: ALT_R,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: 1, pixels: function () { return gCharWidth; },
+},
+finish: function () {
+runNextTest(gScrollMessageTests, 0);
+}
+},
+];
+var gPageScrllTests = [
+// Pixel scroll event should be fired always but line scroll event should be
+// fired only when accumulated delta value is over a line.
+{ description: "WM_MOUSEWHEEL, -60, 0.5 pages",
+message: WM_MOUSEWHEEL, delta: -60,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: 0, pixels: function () { return gPageHeight / 2; },
+},
+},
+{ description: "WM_MOUSEWHEEL, -60, 0.5 pages (pending: 0.5 pages)",
+message: WM_MOUSEWHEEL, delta: -60,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: DOM_PAGE_SCROLL_DELTA,
+pixels: function () { return ((gPageHeight / 2) + (gPageHeight % 2)); },
+},
+},
+{ description: "WM_MOUSEWHEEL, -60, 0.5 pages",
+message: WM_MOUSEWHEEL, delta: -60,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: 0, pixels: function () { return gPageHeight / 2; },
+},
+},
+{ description: "WM_MOUSEWHEEL, 60, -0.5 pages (pending: 0.5 pages)",
+message: WM_MOUSEWHEEL, delta: 60,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: 0, pixels: function () { return gPageHeight / -2; },
+},
+},
+{ description: "WM_MOUSEWHEEL, 60, -0.5 pages (pending: -0.5 pages)",
+message: WM_MOUSEWHEEL, delta: 60,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: -DOM_PAGE_SCROLL_DELTA,
+pixels: function () { return -((gPageHeight / 2) + (gPageHeight % 2)); },
+},
+},
+{ description: "WM_MOUSEWHEEL, 60, -0.5 pages",
+message: WM_MOUSEWHEEL, delta: 60,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: 0, pixels: function () { return gPageHeight / -2; },
+},
+},
+{ description: "WM_MOUSEHWHEEL, 60, 0.5 pages",
+message: WM_MOUSEHWHEEL, delta: 60,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: 0, pixels: function () { return gPageWidth / 2; },
+},
+},
+{ description: "WM_MOUSEHWHEEL, 60, 0.5 pages (pending: 0.5 pages)",
+message: WM_MOUSEHWHEEL, delta: 60,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: DOM_PAGE_SCROLL_DELTA,
+pixels: function () { return ((gPageWidth / 2) + (gPageWidth % 2)); },
+},
+},
+{ description: "WM_MOUSEHWHEEL, 60, 0.5 pages",
+message: WM_MOUSEHWHEEL, delta: 60,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: 0, pixels: function () { return gPageWidth / 2; },
+},
+},
+{ description: "WM_MOUSEHWHEEL, -60, -0.5 pages (pending: 0.5 pages)",
+message: WM_MOUSEHWHEEL, delta: -60,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: 0, pixels: function () { return gCharWidth / -2; },
+},
+},
+{ description: "WM_MOUSEHWHEEL, -60, -0.5 pages (pending: -0.5 pages)",
+message: WM_MOUSEHWHEEL, delta: -60,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: -DOM_PAGE_SCROLL_DELTA,
+pixels: function () { return -((gCharWidth / 2) + (gCharWidth % 2)); },
+},
+},
+{ description: "WM_MOUSEHWHEEL, -60, -0.5 pages",
+message: WM_MOUSEHWHEEL, delta: -60,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: 0, pixels: function () { return gCharWidth / -2; },
+},
+},
+];
+var gScrollMessageTests = [
+// Widget should dispatch neither line scroll event nor pixel scroll event if
+// the WM_*SCROLL's lParam is NULL and mouse wheel emulation is disabled.
+{ description: "WM_VSCROLL, SB_LINEDOWN, lParam is NULL, emulation disabled",
+message: WM_VSCROLL, delta: SB_LINEDOWN,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: 0, pixels: 0,
+},
+init: function () {
+SpecialPowers.setIntPref(kVAmountPref, 3);
+SpecialPowers.setIntPref(kHAmountPref, 3);
+SpecialPowers.setBoolPref(kEmulateWheelByWMSCROLLPref, false);
+},
+},
+{ description: "WM_VSCROLL, SB_LINEUP, lParam is NULL, emulation disabled",
+message: WM_VSCROLL, delta: SB_LINEUP,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: 0, pixels: 0,
+},
+},
+{ description: "WM_HSCROLL, SB_LINERIGHT, lParam is NULL, emulation disabled",
+message: WM_HSCROLL, delta: SB_LINERIGHT,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: 0, pixels: 0,
+},
+},
+{ description: "WM_HSCROLL, SB_LINELEFT, lParam is NULL, emulation disabled",
+message: WM_HSCROLL, delta: SB_LINELEFT,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: 0, pixels: 0,
+},
+},
+// Widget should emulate mouse wheel behavior for WM_*SCROLL even if the
+// kEmulateWheelByWMSCROLLPref is disabled but the message's lParam is not
+// NULL. Then, widget doesn't dispatch a pixel event for WM_*SCROLL messages,
+// but ESM dispatches it instead.
+{ description: "WM_VSCROLL, SB_LINEUP, lParam is not NULL, emulation disabled",
+message: WM_VSCROLL, delta: SB_LINEUP,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL,
+expected: {
+axis: kVAxis, lines: -1, pixels: function () { return -gLineHeight; },
+},
+init: function () {
+SpecialPowers.setBoolPref(kEmulateWheelByWMSCROLLPref, false);
+},
+},
+{ description: "WM_VSCROLL, SB_LINEDOWN, lParam is not NULL, emulation disabled",
+message: WM_VSCROLL, delta: SB_LINEDOWN,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL,
+expected: {
+axis: kVAxis, lines: 1, pixels: function () { return gLineHeight; },
+},
+},
+{ description: "WM_HSCROLL, SB_LINELEFT, lParam is not NULL, emulation disabled",
+message: WM_HSCROLL, delta: SB_LINELEFT,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL,
+expected: {
+axis: kHAxis, lines: -1, pixels: function () { return -gCharWidth; },
+},
+},
+{ description: "WM_HSCROLL, SB_LINERIGHT, lParam is not NULL, emulation disabled",
+message: WM_HSCROLL, delta: SB_LINERIGHT,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL,
+expected: {
+axis: kHAxis, lines: 1, pixels: function () { return gCharWidth; },
+},
+},
+{ description: "WM_VSCROLL, SB_PAGEUP, lParam is not NULL, emulation disabled",
+message: WM_VSCROLL, delta: SB_PAGEUP,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL,
+expected: {
+axis: kVAxis, lines: -DOM_PAGE_SCROLL_DELTA,
+pixels: function () { return -gPageHeight; },
+},
+},
+{ description: "WM_VSCROLL, SB_PAGEDOWN, lParam is not NULL, emulation disabled",
+message: WM_VSCROLL, delta: SB_PAGEDOWN,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL,
+expected: {
+axis: kVAxis, lines: DOM_PAGE_SCROLL_DELTA,
+pixels: function () { return gPageHeight; },
+},
+},
+{ description: "WM_HSCROLL, SB_PAGELEFT, lParam is not NULL, emulation disabled",
+message: WM_HSCROLL, delta: SB_PAGELEFT,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL,
+expected: {
+axis: kHAxis, lines: -DOM_PAGE_SCROLL_DELTA,
+pixels: function () { return -gPageWidth; },
+},
+},
+{ description: "WM_HSCROLL, SB_PAGERIGHT, lParam is not NULL, emulation disabled",
+message: WM_HSCROLL, delta: SB_PAGERIGHT,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL,
+expected: {
+axis: kHAxis, lines: DOM_PAGE_SCROLL_DELTA,
+pixels: function () { return gPageWidth; },
+},
+},
+// Widget should emulate mouse wheel behavior for WM_*SCROLL when the
+// kEmulateWheelByWMSCROLLPref is enabled even if the message's lParam is
+// NULL. Then, widget doesn't dispatch a pixel event for WM_*SCROLL messages,
+// but ESM dispatches it instead.
+{ description: "WM_VSCROLL, SB_LINEUP, lParam is NULL, emulation enabled",
+message: WM_VSCROLL, delta: SB_LINEUP,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: -1, pixels: function () { return -gLineHeight; },
+},
+init: function () {
+SpecialPowers.setBoolPref(kEmulateWheelByWMSCROLLPref, true);
+},
+},
+{ description: "WM_VSCROLL, SB_LINEDOWN, lParam is NULL, emulation enabled",
+message: WM_VSCROLL, delta: SB_LINEDOWN,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: 1, pixels: function () { return gLineHeight; },
+},
+},
+{ description: "WM_HSCROLL, SB_LINELEFT, lParam is NULL, emulation enabled",
+message: WM_HSCROLL, delta: SB_LINELEFT,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: -1, pixels: function () { return -gCharWidth; },
+},
+},
+{ description: "WM_HSCROLL, SB_LINERIGHT, lParam is NULL, emulation enabled",
+message: WM_HSCROLL, delta: SB_LINERIGHT,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: 1, pixels: function () { return gCharWidth; },
+},
+},
+{ description: "WM_VSCROLL, SB_PAGEUP, lParam is NULL, emulation enabled",
+message: WM_VSCROLL, delta: SB_PAGEUP,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: -DOM_PAGE_SCROLL_DELTA,
+pixels: function () { return -gPageHeight; },
+},
+},
+{ description: "WM_VSCROLL, SB_PAGEDOWN, lParam is NULL, emulation enabled",
+message: WM_VSCROLL, delta: SB_PAGEDOWN,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: DOM_PAGE_SCROLL_DELTA,
+pixels: function () { return gPageHeight; },
+},
+},
+{ description: "WM_HSCROLL, SB_PAGELEFT, lParam is NULL, emulation enabled",
+message: WM_HSCROLL, delta: SB_PAGELEFT,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: -DOM_PAGE_SCROLL_DELTA,
+pixels: function () { return -gPageWidth; },
+},
+},
+{ description: "WM_HSCROLL, SB_PAGERIGHT, lParam is NULL, emulation enabled",
+message: WM_HSCROLL, delta: SB_PAGERIGHT,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: DOM_PAGE_SCROLL_DELTA,
+pixels: function () { return gPageWidth; },
+},
+},
+// Modifier key tests for WM_*SCROLL
+{ description: "WM_VSCROLL, SB_LINEDOWN, lParam is not NULL, emulation disabled, with left Shift",
+message: WM_VSCROLL, delta: SB_LINEDOWN,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: SHIFT_L,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL,
+expected: {
+axis: kVAxis, lines: 1, pixels: function () { return gLineHeight; },
+},
+init: function () {
+SpecialPowers.setBoolPref(kEmulateWheelByWMSCROLLPref, false);
+},
+},
+{ description: "WM_VSCROLL, SB_LINEDOWN, lParam is not NULL, emulation disabled, with right Shift",
+message: WM_VSCROLL, delta: SB_LINEDOWN,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: SHIFT_R,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL,
+expected: {
+axis: kVAxis, lines: 1, pixels: function () { return gLineHeight; },
+},
+},
+{ description: "WM_VSCROLL, SB_LINEDOWN, lParam is not NULL, emulation disabled, with left Ctrl",
+message: WM_VSCROLL, delta: SB_LINEDOWN,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: CTRL_L,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL,
+expected: {
+axis: kVAxis, lines: 1, pixels: function () { return gLineHeight; },
+},
+},
+{ description: "WM_VSCROLL, SB_LINEDOWN, lParam is not NULL, emulation disabled, with right Ctrl",
+message: WM_VSCROLL, delta: SB_LINEDOWN,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: CTRL_L,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL,
+expected: {
+axis: kVAxis, lines: 1, pixels: function () { return gLineHeight; },
+},
+},
+{ description: "WM_VSCROLL, SB_LINEDOWN, lParam is not NULL, emulation disabled, with left Alt",
+message: WM_VSCROLL, delta: SB_LINEDOWN,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: ALT_L,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL,
+expected: {
+axis: kVAxis, lines: 1, pixels: function () { return gLineHeight; },
+},
+},
+{ description: "WM_VSCROLL, SB_LINEDOWN, lParam is not NULL, emulation disabled, with right Alt",
+message: WM_VSCROLL, delta: SB_LINEDOWN,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: ALT_R,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL,
+expected: {
+axis: kVAxis, lines: 1, pixels: function () { return gLineHeight; },
+},
+},
+{ description: "WM_HSCROLL, SB_LINERIGHT, lParam is not NULL, emulation disabled, with left Shift",
+message: WM_HSCROLL, delta: SB_LINERIGHT,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: SHIFT_L,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL,
+expected: {
+axis: kHAxis, lines: 1, pixels: function () { return gCharWidth; },
+},
+},
+{ description: "WM_HSCROLL, SB_LINERIGHT, lParam is not NULL, emulation disabled, with right Shift",
+message: WM_HSCROLL, delta: SB_LINERIGHT,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: SHIFT_R,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL,
+expected: {
+axis: kHAxis, lines: 1, pixels: function () { return gCharWidth; },
+},
+},
+{ description: "WM_HSCROLL, SB_LINERIGHT, lParam is not NULL, emulation disabled, with left Ctrl",
+message: WM_HSCROLL, delta: SB_LINERIGHT,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: CTRL_L,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL,
+expected: {
+axis: kHAxis, lines: 1, pixels: function () { return gCharWidth; },
+},
+},
+{ description: "WM_HSCROLL, SB_LINERIGHT, lParam is not NULL, emulation disabled, with right Ctrl",
+message: WM_HSCROLL, delta: SB_LINERIGHT,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: CTRL_L,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL,
+expected: {
+axis: kHAxis, lines: 1, pixels: function () { return gCharWidth; },
+},
+},
+{ description: "WM_HSCROLL, SB_LINERIGHT, lParam is not NULL, emulation disabled, with left Alt",
+message: WM_HSCROLL, delta: SB_LINERIGHT,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: ALT_L,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL,
+expected: {
+axis: kHAxis, lines: 1, pixels: function () { return gCharWidth; },
+},
+},
+{ description: "WM_HSCROLL, SB_LINERIGHT, lParam is not NULL, emulation disabled, with right Alt",
+message: WM_HSCROLL, delta: SB_LINERIGHT,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: ALT_R,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL,
+expected: {
+axis: kHAxis, lines: 1, pixels: function () { return gCharWidth; },
+},
+finish: function () {
+runDeactiveWindowTests();
+}
+},
+];
+var gDeactiveWindowTests = [
+// Typically, mouse drivers send wheel messages to focused window.
+// However, we prefer to scroll a scrollable element under the mouse cursor.
+{ description: "WM_MOUSEWHEEL, -120, 3 lines, window is deactive",
+message: WM_MOUSEWHEEL, delta: -120,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: 3, pixels: function () { return gLineHeight * 3; },
+},
+init: function () {
+SpecialPowers.setIntPref(kVAmountPref, 3);
+SpecialPowers.setIntPref(kHAmountPref, 3);
+},
+onLineScrollEvent: function (aEvent) {
+var fm = Components.classes["@mozilla.org/focus-manager;1"].
+getService(Components.interfaces.nsIFocusManager);
+is(fm.activeWindow, gOtherWindow, "The other window isn't activated");
+},
+},
+{ description: "WM_MOUSEWHEEL, 120, -3 lines, window is deactive",
+message: WM_MOUSEWHEEL, delta: 120,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: -3, pixels: function () { return gLineHeight * -3; },
+},
+},
+{ description: "WM_MOUSEHWHEEL, 120, 3 chars, window is deactive",
+message: WM_MOUSEHWHEEL, delta: 120,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: 3, pixels: function () { return gCharWidth * 3; },
+},
+},
+{ description: "WM_MOUSEHWHEEL, -120, -3 chars, window is deactive",
+message: WM_MOUSEHWHEEL, delta: -120,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: -3, pixels: function () { return gCharWidth * -3; },
+},
+},
+// Of course, even if some drivers prefer the cursor position, we don't need
+// to change anything.
+{ description: "WM_MOUSEWHEEL, -120, 3 lines, window is deactive (receive the message directly)",
+message: WM_MOUSEWHEEL, delta: -120,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_PREFER_WIDGET_AT_POINT,
+expected: {
+axis: kVAxis, lines: 3, pixels: function () { return gLineHeight * 3; },
+},
+},
+{ description: "WM_MOUSEWHEEL, 120, -3 lines, window is deactive (receive the message directly)",
+message: WM_MOUSEWHEEL, delta: 120,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_PREFER_WIDGET_AT_POINT,
+expected: {
+axis: kVAxis, lines: -3, pixels: function () { return gLineHeight * -3; },
+},
+},
+{ description: "WM_MOUSEHWHEEL, 120, 3 chars, window is deactive (receive the message directly)",
+message: WM_MOUSEHWHEEL, delta: 120,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_PREFER_WIDGET_AT_POINT,
+expected: {
+axis: kHAxis, lines: 3, pixels: function () { return gCharWidth * 3; },
+},
+},
+{ description: "WM_MOUSEHWHEEL, -120, -3 chars, window is deactive (receive the message directly)",
+message: WM_MOUSEHWHEEL, delta: -120,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_PREFER_WIDGET_AT_POINT,
+expected: {
+axis: kHAxis, lines: -3, pixels: function () { return gCharWidth * -3; },
+},
+},
+// Same for WM_*SCROLL if lParam is not NULL
+{ description: "WM_VSCROLL, SB_LINEUP, lParam is not NULL, emulation disabled, window is deactive",
+message: WM_VSCROLL, delta: SB_LINEUP,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL,
+expected: {
+axis: kVAxis, lines: -1, pixels: function () { return -gLineHeight; },
+},
+init: function () {
+SpecialPowers.setBoolPref(kEmulateWheelByWMSCROLLPref, false);
+},
+},
+{ description: "WM_VSCROLL, SB_LINEDOWN, lParam is not NULL, emulation disabled, window is deactive",
+message: WM_VSCROLL, delta: SB_LINEDOWN,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL,
+expected: {
+axis: kVAxis, lines: 1, pixels: function () { return gLineHeight; },
+},
+},
+{ description: "WM_HSCROLL, SB_LINELEFT, lParam is not NULL, emulation disabled, window is deactive",
+message: WM_HSCROLL, delta: SB_LINELEFT,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL,
+expected: {
+axis: kHAxis, lines: -1, pixels: function () { return -gCharWidth; },
+},
+},
+{ description: "WM_HSCROLL, SB_LINERIGHT, lParam is not NULL, emulation disabled, window is deactive",
+message: WM_HSCROLL, delta: SB_LINERIGHT,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL,
+expected: {
+axis: kHAxis, lines: 1, pixels: function () { return gCharWidth; },
+},
+},
+// Same for WM_*SCROLL if lParam is NULL but emulation is enabled
+{ description: "WM_VSCROLL, SB_LINEUP, lParam is NULL, emulation enabled, window is deactive",
+message: WM_VSCROLL, delta: SB_LINEUP,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: -1, pixels: function () { return -gLineHeight; },
+},
+init: function () {
+SpecialPowers.setBoolPref(kEmulateWheelByWMSCROLLPref, true);
+},
+},
+{ description: "WM_VSCROLL, SB_LINEDOWN, lParam is NULL, emulation enabled, window is deactive",
+message: WM_VSCROLL, delta: SB_LINEDOWN,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kVAxis, lines: 1, pixels: function () { return gLineHeight; },
+},
+},
+{ description: "WM_HSCROLL, SB_LINELEFT, lParam is NULL, emulation enabled, window is deactive",
+message: WM_HSCROLL, delta: SB_LINELEFT,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: -1, pixels: function () { return -gCharWidth; },
+},
+},
+{ description: "WM_HSCROLL, SB_LINERIGHT, lParam is NULL, emulation enabled, window is deactive",
+message: WM_HSCROLL, delta: SB_LINERIGHT,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: 0,
+expected: {
+axis: kHAxis, lines: 1, pixels: function () { return gCharWidth; },
+},
+},
+// Same for WM_*SCROLL if lParam is not NULL and message sent to the deactive window directly
+{ description: "WM_VSCROLL, SB_LINEUP, lParam is not NULL, emulation disabled, window is deactive (receive the message directly)",
+message: WM_VSCROLL, delta: SB_LINEUP,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL |
+nsIDOMWindowUtils.MOUSESCROLL_PREFER_WIDGET_AT_POINT,
+expected: {
+axis: kVAxis, lines: -1, pixels: function () { return -gLineHeight; },
+},
+init: function () {
+SpecialPowers.setBoolPref(kEmulateWheelByWMSCROLLPref, false);
+},
+},
+{ description: "WM_VSCROLL, SB_LINEDOWN, lParam is not NULL, emulation disabled, window is deactive (receive the message directly)",
+message: WM_VSCROLL, delta: SB_LINEDOWN,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL |
+nsIDOMWindowUtils.MOUSESCROLL_PREFER_WIDGET_AT_POINT,
+expected: {
+axis: kVAxis, lines: 1, pixels: function () { return gLineHeight; },
+},
+},
+{ description: "WM_HSCROLL, SB_LINELEFT, lParam is not NULL, emulation disabled, window is deactive (receive the message directly)",
+message: WM_HSCROLL, delta: SB_LINELEFT,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL |
+nsIDOMWindowUtils.MOUSESCROLL_PREFER_WIDGET_AT_POINT,
+expected: {
+axis: kHAxis, lines: -1, pixels: function () { return -gCharWidth; },
+},
+},
+{ description: "WM_HSCROLL, SB_LINERIGHT, lParam is not NULL, emulation disabled, window is deactive (receive the message directly)",
+message: WM_HSCROLL, delta: SB_LINERIGHT,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_WIN_SCROLL_LPARAM_NOT_NULL |
+nsIDOMWindowUtils.MOUSESCROLL_PREFER_WIDGET_AT_POINT,
+expected: {
+axis: kHAxis, lines: 1, pixels: function () { return gCharWidth; },
+},
+},
+// Same for WM_*SCROLL if lParam is NULL but emulation is enabled, and message sent to the deactive window directly
+{ description: "WM_VSCROLL, SB_LINEUP, lParam is NULL, emulation enabled, window is deactive (receive the message directly)",
+message: WM_VSCROLL, delta: SB_LINEUP,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_PREFER_WIDGET_AT_POINT,
+expected: {
+axis: kVAxis, lines: -1, pixels: function () { return -gLineHeight; },
+},
+init: function () {
+SpecialPowers.setBoolPref(kEmulateWheelByWMSCROLLPref, true);
+},
+},
+{ description: "WM_VSCROLL, SB_LINEDOWN, lParam is NULL, emulation enabled, window is deactive (receive the message directly)",
+message: WM_VSCROLL, delta: SB_LINEDOWN,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_PREFER_WIDGET_AT_POINT,
+expected: {
+axis: kVAxis, lines: 1, pixels: function () { return gLineHeight; },
+},
+},
+{ description: "WM_HSCROLL, SB_LINELEFT, lParam is NULL, emulation enabled, window is deactive (receive the message directly)",
+message: WM_HSCROLL, delta: SB_LINELEFT,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_PREFER_WIDGET_AT_POINT,
+expected: {
+axis: kHAxis, lines: -1, pixels: function () { return -gCharWidth; },
+},
+},
+{ description: "WM_HSCROLL, SB_LINERIGHT, lParam is NULL, emulation enabled, window is deactive (receive the message directly)",
+message: WM_HSCROLL, delta: SB_LINERIGHT,
+target: gP1, x: 10, y: 10, window: window,
+modifiers: 0,
+additionalFlags: nsIDOMWindowUtils.MOUSESCROLL_PREFER_WIDGET_AT_POINT,
+expected: {
+axis: kHAxis, lines: 1, pixels: function () { return gCharWidth; },
+},
+finish: function () {
+gOtherWindow.close();
+gOtherWindow = null;
+window.close();
+}
+},
+];
+function runDeactiveWindowTests()
+{
+gOtherWindow = window.open("data:text/html,", "_blank",
+"chrome,width=100,height=100,top=700,left=700");
+window.opener.wrappedJSObject.SimpleTest.waitForFocus(function () {
+runNextTest(gDeactiveWindowTests, 0);
+}, gOtherWindow);
+}
+function runNextTest(aTests, aIndex)
+{
+if (aIndex > 0 && aTests[aIndex - 1] && aTests[aIndex - 1].finish) {
+aTests[aIndex - 1].finish();
+}
+if (aTests.length == aIndex) {
+return;
+}
+var test = aTests[aIndex++];
+if (test.init) {
+test.init();
+}
+test.handled = { lines: false, pixels: false };
+switch (test.message) {
+case WM_MOUSEWHEEL:
+case WM_MOUSEHWHEEL:
+case WM_VSCROLL:
+case WM_HSCROLL:
+var expectedLines = test.expected.lines;
+var expectedPixels =
+cut((typeof test.expected.pixels == "function") ?
+test.expected.pixels() : test.expected.pixels);
+var handler = function (aEvent) {
+var doCommonTests = true;
+if (!aEvent) {
+ok(!test.handled.lines,
+test.description + ", line scroll event has been handled");
+ok(!test.handled.pixels,
+test.description + ", pixel scroll event has been handled");
+doCommonTests = false;
+} else if (aEvent.type == kMouseLineScrollEvent) {
+ok(!test.handled.lines,
+test.description + ":(" + aEvent.type + "), same event has already been handled");
+test.handled.lines = true;
+isnot(expectedLines, 0,
+test.description + ":(" + aEvent.type + "), event shouldn't be fired");
+if (test.onLineScrollEvent && test.onLineScrollEvent(aEvent)) {
+doCommonTests = false;
+}
+} else if (aEvent.type == kMousePixelScrollEvent) {
+ok(!test.handled.pixels,
+test.description + ":(" + aEvent.type + "), same event has already been handled");
+test.handled.pixels = true;
+isnot(expectedPixels, 0,
+test.description + ":(" + aEvent.type + "), event shouldn't be fired");
+if (test.onPixelScrollEvent && test.onPixelScrollEvent(aEvent)) {
+doCommonTests = false;
+}
+}
+if (doCommonTests) {
+var expectedDelta =
+(aEvent.type == kMouseLineScrollEvent) ?
+expectedLines : expectedPixels;
+is(aEvent.target.id, test.target.id,
+test.description + ":(" + aEvent.type + "), ID mismatch");
+is(aEvent.axis, test.expected.axis,
+test.description + ":(" + aEvent.type + "), axis mismatch");
+ok(aEvent.detail != 0,
+test.description + ":(" + aEvent.type + "), delta must not be 0");
+is(aEvent.detail, expectedDelta,
+test.description + ":(" + aEvent.type + "), delta mismatch");
+is(aEvent.shiftKey, (test.modifiers & (SHIFT_L | SHIFT_R)) != 0,
+test.description + ":(" + aEvent.type + "), shiftKey mismatch");
+is(aEvent.ctrlKey, (test.modifiers & (CTRL_L | CTRL_R)) != 0,
+test.description + ":(" + aEvent.type + "), ctrlKey mismatch");
+is(aEvent.altKey, (test.modifiers & (ALT_L | ALT_R)) != 0,
+test.description + ":(" + aEvent.type + "), altKey mismatch");
+}
+if (!aEvent || (test.handled.lines || expectedLines == 0) &&
+(test.handled.pixels || expectedPixels == 0)) {
+// Don't scroll actually.
+if (aEvent) {
+aEvent.preventDefault();
+}
+test.target.removeEventListener(kMouseLineScrollEvent, handler, true);
+test.target.removeEventListener(kMousePixelScrollEvent, handler, true);
+setTimeout(runNextTest, 0, aTests, aIndex);
+}
+};
+test.target.addEventListener(kMouseLineScrollEvent, handler, true);
+test.target.addEventListener(kMousePixelScrollEvent, handler, true);
+if (expectedLines == 0 && expectedPixels == 0) {
+// The timeout might not be enough if system is slow by other process,
+// so, the test might be passed unexpectedly.  However, it must be able
+// to be detected by random orange.
+setTimeout(handler, 500);
+}
+var utils = getWindowUtils(test.window);
+var ptInScreen = getPointInScreen(test.target, test.window);
+var isVertical =
+((test.message == WM_MOUSEWHEEL) || (test.message == WM_VSCROLL));
+var deltaX = !isVertical ? test.delta : 0;
+var deltaY = isVertical  ? test.delta : 0;
+utils.sendNativeMouseScrollEvent(ptInScreen.x + test.x,
+ptInScreen.y + test.y,
+test.message, deltaX, deltaY, 0,
+test.modifiers,
+test.additionalFlags,
+test.target);
+break;
+default:
+ok(false, test.description + ": invalid message");
+// Let's timeout.
+}
+}
+function prepareTests()
+{
+// Disable special action with modifier key
+SpecialPowers.setIntPref(kAltKeyActionPref, 1);
+SpecialPowers.setIntPref(kCtrlKeyActionPref, 1);
+SpecialPowers.setIntPref(kShiftKeyActionPref, 1);
+SpecialPowers.setIntPref(kWinKeyActionPref, 1);
+SpecialPowers.setIntPref(kAltKeyDeltaMultiplierXPref, 100);
+SpecialPowers.setIntPref(kAltKeyDeltaMultiplierYPref, 100);
+SpecialPowers.setIntPref(kCtrlKeyDeltaMultiplierXPref, 100);
+SpecialPowers.setIntPref(kCtrlKeyDeltaMultiplierYPref, 100);
+SpecialPowers.setIntPref(kShiftKeyDeltaMultiplierXPref, 100);
+SpecialPowers.setIntPref(kShiftKeyDeltaMultiplierYPref, 100);
+SpecialPowers.setIntPref(kWinKeyDeltaMultiplierXPref, 100);
+SpecialPowers.setIntPref(kWinKeyDeltaMultiplierYPref, 100);
+SpecialPowers.setBoolPref(kSystemScrollSpeedOverridePref, false);
+SpecialPowers.setIntPref(kTimeoutPref, -1);
+runNextTest(gPreparingSteps, 0);
+}
+</script>
+</body>
+</html>

The Tor Browser / file comparison

comparison: widget/tests/window_mouse_scroll_win.html

widget/tests/window_mouse_scroll_win.html