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+<!DOCTYPE HTML>
+<html>
+<head>
+ <title>Test for default action of WheelEvent</title>
+ <script src="/tests/SimpleTest/SimpleTest.js"></script>
+ <script src="/tests/SimpleTest/EventUtils.js"></script>
+ <script src="/tests/SimpleTest/paint_listener.js"></script>
+ <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<p id="display"></p>
+<div id="scrollable" style="overflow: auto; width: 200px; height: 200px;">
+ <div id="clipper" style="margin: 0; padding: 0; overflow: hidden; width: 3000px; height: 3000px;">
+ <div id="scrolled" style="width: 5000px; height: 5000px;">
+ 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>
+ 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>
+ 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>
+ 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>
+ 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>
+ 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>
+ 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>
+ 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>
+ 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>
+ 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>
+ 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>
+ 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>
+ 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>
+ 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>
+ 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>
+ 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>
+ 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>
+ 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>
+ 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>
+ 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>
+ 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>
+ 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>
+ 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>
+ 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>
+ 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>
+ 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>
+ </div>
+ </div>
+</div>
+<div id="spacerForBody"></div>
+<div id="content" style="display: none">
+
+</div>
+<pre id="test">
+<script type="application/javascript">
+
+// Until the first non-blank paint, the parent will set the opacity of our
+// browser to 0 using the 'blank' attribute.
+// Until the blank attribute is removed, we can't send scroll events.
+SimpleTest.waitForFocus(function() {
+ let chromeScript = SpecialPowers.loadChromeScript(_ => {
+ /* eslint-env mozilla/chrome-script */
+ let win = Services.wm.getMostRecentWindow("navigator:browser");
+ win.requestAnimationFrame(() => {
+ win.gBrowser.selectedBrowser.removeAttribute("blank");
+ win.requestAnimationFrame(() => {
+ sendAsyncMessage("blank-attribute-removed");
+ });
+ });
+ });
+ chromeScript.promiseOneMessage("blank-attribute-removed").then(() => {
+ chromeScript.destroy();
+ runTests();
+ });
+}, window);
+
+SimpleTest.requestLongerTimeout(6);
+SimpleTest.requestFlakyTimeout("untriaged");
+
+var winUtils = SpecialPowers.getDOMWindowUtils(window);
+// grab refresh driver
+winUtils.advanceTimeAndRefresh(100);
+
+var gScrollableElement = document.getElementById("scrollable");
+var gScrolledElement = document.getElementById("scrolled");
+var gSpacerForBodyElement = document.getElementById("spacerForBody");
+
+const kDefaultActionNone = 0;
+const kDefaultActionScroll = 1;
+const kDefaultActionHistory = 2;
+const kDefaultActionZoom = 3;
+const kDefaultActionHorizontalizedScroll = 4;
+
+const kDefaultActionOverrideXNoOverride = -1;
+const kDefaultActionOverrideXNone = kDefaultActionNone;
+const kDefaultActionOverrideXScroll = kDefaultActionScroll;
+const kDefaultActionOverrideXHistory = kDefaultActionHistory;
+const kDefaultActionOverrideXZoom = kDefaultActionZoom;
+
+// We sometimes rely on the scroll position not getting preserved across tests.
+function resetScrollPosition(element) {
+ element.style.display = "none";
+ element.offsetTop;
+ element.style.display = "";
+}
+
+function is()
+{
+ window.opener.is.apply(window.opener, arguments);
+}
+
+function ok()
+{
+ window.opener.ok.apply(window.opener, arguments);
+}
+
+function sendWheelAndWait(aX, aY, aEvent, aCallback)
+{
+ sendWheelAndPaint(gScrollableElement, aX, aY, aEvent, aCallback);
+}
+
+function hitEventLoop(aFunc, aTimes)
+{
+ winUtils.advanceTimeAndRefresh(100);
+
+ if (--aTimes) {
+ setTimeout(hitEventLoop, 0, aFunc, aTimes);
+ } else {
+ setTimeout(aFunc, 20);
+ }
+}
+
+function onZoomReset(aCallback) {
+ var fullZoom = SpecialPowers.getFullZoom(window);
+ if (fullZoom == 1) {
+ SimpleTest.executeSoon(aCallback);
+ return;
+ }
+ // Zoom causes a resize of the viewport.
+ window.addEventListener("resize", function onResize(event) {
+ is(SpecialPowers.getFullZoom(window), 1, "Zoom should be reset to 1");
+ window.removeEventListener("resize", onResize);
+ SimpleTest.executeSoon(aCallback);
+ });
+}
+
+function setDeltaMultiplierSettings(aSettings, aCallback)
+{
+ SpecialPowers.pushPrefEnv({"set": [
+ ["mousewheel.default.delta_multiplier_x", aSettings.deltaMultiplierX * 100],
+ ["mousewheel.default.delta_multiplier_y", aSettings.deltaMultiplierY * 100],
+ ["mousewheel.default.delta_multiplier_z", aSettings.deltaMultiplierZ * 100],
+ ["mousewheel.with_alt.delta_multiplier_x", aSettings.deltaMultiplierX * 100],
+ ["mousewheel.with_alt.delta_multiplier_y", aSettings.deltaMultiplierY * 100],
+ ["mousewheel.with_alt.delta_multiplier_z", aSettings.deltaMultiplierZ * 100],
+ ["mousewheel.with_control.delta_multiplier_x", aSettings.deltaMultiplierX * 100],
+ ["mousewheel.with_control.delta_multiplier_y", aSettings.deltaMultiplierY * 100],
+ ["mousewheel.with_control.delta_multiplier_z", aSettings.deltaMultiplierZ * 100],
+ ["mousewheel.with_meta.delta_multiplier_x", aSettings.deltaMultiplierX * 100],
+ ["mousewheel.with_meta.delta_multiplier_y", aSettings.deltaMultiplierY * 100],
+ ["mousewheel.with_meta.delta_multiplier_z", aSettings.deltaMultiplierZ * 100],
+ ["mousewheel.with_shift.delta_multiplier_x", aSettings.deltaMultiplierX * 100],
+ ["mousewheel.with_shift.delta_multiplier_y", aSettings.deltaMultiplierY * 100],
+ ["mousewheel.with_shift.delta_multiplier_z", aSettings.deltaMultiplierZ * 100],
+ ["mousewheel.with_win.delta_multiplier_x", aSettings.deltaMultiplierX * 100],
+ ["mousewheel.with_win.delta_multiplier_y", aSettings.deltaMultiplierY * 100],
+ ["mousewheel.with_win.delta_multiplier_z", aSettings.deltaMultiplierZ * 100]
+ ]}, aCallback);
+}
+
+function doTestScroll(aSettings, aCallback)
+{
+ const kNoScroll = 0x00;
+ const kScrollUp = 0x01;
+ const kScrollDown = 0x02;
+ const kScrollLeft = 0x04;
+ const kScrollRight = 0x08;
+
+ const kTests = [
+ { description: "Scroll to bottom by pixel scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollDown },
+ { description: "Scroll to bottom by pixel scroll when lineOrPageDelta is 1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollDown },
+ { description: "Scroll to top by pixel scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollUp },
+ { description: "Scroll to top by pixel scroll when lineOrPageDelta is -1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: -1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollUp },
+ { description: "Scroll to right by pixel scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll to right by pixel scroll when lineOrPageDelta is 1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll to left by pixel scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Scroll to left by pixel scroll when lineOrPageDelta is -1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Scroll to bottom-right by pixel scroll",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollDown | kScrollRight },
+ { description: "Scroll to bottom-left by pixel scroll",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollDown | kScrollLeft },
+ { description: "Scroll to top-left by pixel scroll",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollUp | kScrollLeft },
+ { description: "Scroll to top-right by pixel scroll",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollUp | kScrollRight },
+ { description: "Not Scroll by pixel scroll for z",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 0.0, deltaZ: 1.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll },
+
+ { description: "Scroll to bottom by line scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollDown },
+ { description: "Scroll to bottom by line scroll when lineOrPageDelta is 1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollDown },
+ { description: "Scroll to top by line scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollUp },
+ { description: "Scroll to top by line scroll when lineOrPageDelta is -1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: -1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollUp },
+ { description: "Scroll to right by line scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll to right by line scroll when lineOrPageDelta is 1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll to left by line scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Scroll to left by line scroll when lineOrPageDelta is -1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Scroll to bottom-right by line scroll",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.5, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollDown | kScrollRight },
+ { description: "Scroll to bottom-left by line scroll",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: -0.5, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollDown | kScrollLeft },
+ { description: "Scroll to top-left by line scroll",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: -0.5, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollUp | kScrollLeft },
+ { description: "Scroll to top-right by line scroll",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.5, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollUp | kScrollRight },
+ { description: "Not Scroll by line scroll for z",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: 0.0, deltaZ: 1.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll },
+
+ { description: "Scroll to bottom by page scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollDown },
+ { description: "Scroll to bottom by page scroll when lineOrPageDelta is 1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollDown },
+ { description: "Scroll to top by page scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollUp },
+ { description: "Scroll to top by page scroll when lineOrPageDelta is -1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: -1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollUp },
+ { description: "Scroll to right by page scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll to right by page scroll when lineOrPageDelta is 1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll to left by page scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Scroll to left by page scroll when lineOrPageDelta is -1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Scroll to bottom-right by page scroll",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.5, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollDown | kScrollRight },
+ { description: "Scroll to bottom-left by page scroll",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: -0.5, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollDown | kScrollLeft },
+ { description: "Scroll to top-left by page scroll",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: -0.5, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollUp | kScrollLeft },
+ { description: "Scroll to top-right by page scroll",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.5, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollUp | kScrollRight },
+ { description: "Not Scroll by page scroll for z",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: 0.0, deltaZ: 1.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll },
+
+ // special cases.
+
+ // momentum scroll should cause scroll even if the action is zoom, but if the default action is none,
+ // shouldn't do it.
+ { description: "Scroll to bottom by momentum pixel scroll when lineOrPageDelta is 0, even if the action is zoom",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollDown },
+ { description: "Scroll to bottom by momentum pixel scroll when lineOrPageDelta is 1, even if the action is zoom",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollDown },
+ { description: "Scroll to top by momentum pixel scroll when lineOrPageDelta is 0, even if the action is zoom",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollUp },
+ { description: "Scroll to top by momentum pixel scroll when lineOrPageDelta is -1, even if the action is zoom",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: -1, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollUp },
+ { description: "Scroll to right by momentum pixel scroll when lineOrPageDelta is 0, even if the action is zoom",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll to right by momentum pixel scroll when lineOrPageDelta is 1, even if the action is zoom",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 0, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll to left by momentum pixel scroll when lineOrPageDelta is 0, even if the action is zoom",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Scroll to left by momentum pixel scroll when lineOrPageDelta is -1, even if the action is zoom",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: 0, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Scroll to bottom-right by momentum pixel scroll even if the action is zoom",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollDown | kScrollRight },
+ { description: "Scroll to bottom-left by momentum pixel scroll even if the action is zoom",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollDown | kScrollLeft },
+ { description: "Scroll to top-left by momentum pixel scroll even if the action is zoom",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollUp | kScrollLeft },
+ { description: "Scroll to top-right by momentum pixel scroll even if the action is zoom",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollUp | kScrollRight },
+ { description: "Not Scroll by momentum pixel scroll for z (action is zoom)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 0.0, deltaZ: 1.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll },
+ { description: "Not Scroll by momentum pixel scroll if default action is none (action is zoom)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 0.0, deltaZ: 1.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: true, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll,
+ prepare (cb) { SpecialPowers.pushPrefEnv({"set": [["mousewheel.default.action", 0]]}, cb); },
+ cleanup (cb) { SpecialPowers.pushPrefEnv({"set": [["mousewheel.default.action", 1]]}, cb); } },
+
+ // momentum scroll should cause scroll even if the action is history, but if the default action is none,
+ // shouldn't do it.
+ { description: "Scroll to bottom by momentum pixel scroll when lineOrPageDelta is 0, even if the action is history",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: true, metaKey: false, osKey: false },
+ expected: kScrollDown },
+ { description: "Scroll to bottom by momentum pixel scroll when lineOrPageDelta is 1, even if the action is history",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: true, metaKey: false, osKey: false },
+ expected: kScrollDown },
+ { description: "Scroll to top by momentum pixel scroll when lineOrPageDelta is 0, even if the action is history",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: true, metaKey: false, osKey: false },
+ expected: kScrollUp },
+ { description: "Scroll to top by momentum pixel scroll when lineOrPageDelta is -1, even if the action is history",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: -1, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: true, metaKey: false, osKey: false },
+ expected: kScrollUp },
+ { description: "Scroll to right by momentum pixel scroll when lineOrPageDelta is 0, even if the action is history",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: true, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll to right by momentum pixel scroll when lineOrPageDelta is 1, even if the action is history",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 0, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: true, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll to left by momentum pixel scroll when lineOrPageDelta is 0, even if the action is history",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: true, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Scroll to left by momentum pixel scroll when lineOrPageDelta is -1, even if the action is history",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: 0, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: true, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Scroll to bottom-right by momentum pixel scroll even if the action is history",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: true, metaKey: false, osKey: false },
+ expected: kScrollDown | kScrollRight },
+ { description: "Scroll to bottom-left by momentum pixel scroll even if the action is history",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: true, metaKey: false, osKey: false },
+ expected: kScrollDown | kScrollLeft },
+ { description: "Scroll to top-left by momentum pixel scroll even if the action is history",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: true, metaKey: false, osKey: false },
+ expected: kScrollUp | kScrollLeft },
+ { description: "Scroll to top-right by momentum pixel scroll even if the action is history",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: true, metaKey: false, osKey: false },
+ expected: kScrollUp | kScrollRight },
+ { description: "Not Scroll by momentum pixel scroll for z (action is history)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 0.0, deltaZ: 1.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: true, metaKey: false, osKey: false },
+ expected: kNoScroll },
+ { description: "Not Scroll by momentum pixel scroll if default action is none (action is history)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 0.0, deltaZ: 1.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: true,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: true, metaKey: false, osKey: false },
+ expected: kNoScroll,
+ prepare (cb) { SpecialPowers.pushPrefEnv({"set": [["mousewheel.default.action", 0]]}, cb); },
+ cleanup (cb) { SpecialPowers.pushPrefEnv({"set": [["mousewheel.default.action", 1]]}, cb); } },
+
+ // Don't scroll along axis whose overflow style is hidden.
+ { description: "Scroll to only bottom by oblique pixel wheel event with overflow-x: hidden",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 16.0, deltaY: 16.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
+ expectedOverflowDeltaX: 1, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollDown,
+ prepare(cb) { gScrollableElement.style.overflowX = "hidden"; cb(); } },
+ { description: "Scroll to only bottom by oblique line wheel event with overflow-x: hidden",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 1.0, deltaY: 1.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
+ expectedOverflowDeltaX: 1, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollDown },
+ { description: "Scroll to only bottom by oblique page wheel event with overflow-x: hidden",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 1.0, deltaY: 1.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
+ expectedOverflowDeltaX: 1, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollDown },
+ { description: "Scroll to only top by oblique pixel wheel event with overflow-x: hidden",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -16.0, deltaY: -16.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
+ expectedOverflowDeltaX: -1, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollUp },
+ { description: "Scroll to only top by oblique line wheel event with overflow-x: hidden",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: -1.0, deltaY: -1.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
+ expectedOverflowDeltaX: -1, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollUp },
+ { description: "Scroll to only top by oblique page wheel event with overflow-x: hidden",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: -1.0, deltaY: -1.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
+ expectedOverflowDeltaX: -1, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollUp,
+ cleanup (cb) { gScrollableElement.style.overflowX = "auto"; cb(); } },
+ { description: "Scroll to only right by oblique pixel wheel event with overflow-y: hidden",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 16.0, deltaY: 16.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 1,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight,
+ prepare(cb) { gScrollableElement.style.overflowY = "hidden"; cb(); } },
+ { description: "Scroll to only right by oblique line wheel event with overflow-y: hidden",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 1.0, deltaY: 1.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 1,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll to only right by oblique page wheel event with overflow-y: hidden",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 1.0, deltaY: 1.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 1,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll to only left by oblique pixel wheel event with overflow-y: hidden",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -16.0, deltaY: -16.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: -1,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Scroll to only top by oblique line wheel event with overflow-y: hidden",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: -1.0, deltaY: -1.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: -1,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Scroll to only top by oblique page wheel event with overflow-y: hidden",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: -1.0, deltaY: -1.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: -1,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft,
+ cleanup (cb) { gScrollableElement.style.overflowY = "auto"; cb(); } },
+ { description: "Don't be scrolled by oblique pixel wheel event with overflow: hidden",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 16.0, deltaY: 16.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
+ expectedOverflowDeltaX: 1, expectedOverflowDeltaY: 1,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll,
+ prepare(cb) { gScrollableElement.style.overflow = "hidden"; cb(); } },
+ { description: "Don't be scrolled by oblique line wheel event with overflow: hidden",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 1.0, deltaY: 1.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
+ expectedOverflowDeltaX: 1, expectedOverflowDeltaY: 1,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll },
+ { description: "Don't be scrolled by oblique page wheel event with overflow: hidden",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 1.0, deltaY: 1.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
+ expectedOverflowDeltaX: 1, expectedOverflowDeltaY: 1,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll },
+ { description: "Don't be scrolled by oblique pixel wheel event with overflow: hidden",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -16.0, deltaY: -16.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
+ expectedOverflowDeltaX: -1, expectedOverflowDeltaY: -1,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll },
+ { description: "Don't be scrolled by oblique line wheel event with overflow: hidden",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: -1.0, deltaY: -1.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
+ expectedOverflowDeltaX: -1, expectedOverflowDeltaY: -1,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll },
+ { description: "Don't be scrolled by oblique page wheel event with overflow: hidden",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: -1.0, deltaY: -1.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
+ expectedOverflowDeltaX: -1, expectedOverflowDeltaY: -1,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll,
+ cleanup (cb) { gScrollableElement.style.overflow = "auto"; cb(); } },
+
+ // Don't scroll along axis whose overflow style is hidden and overflow delta values should
+ // be zero if there is ancestor scrollable element.
+ { description: "Scroll to only bottom by oblique pixel wheel event with overflow-x: hidden (body is scrollable)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 16.0, deltaY: 16.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollDown,
+ prepare(cb) {
+ gScrollableElement.style.overflowX = "hidden";
+ gScrollableElement.style.position = "fixed";
+ gScrollableElement.style.top = "30px";
+ gScrollableElement.style.left = "30px";
+ // Make body element scrollable.
+ gSpacerForBodyElement.style.width = "5000px";
+ gSpacerForBodyElement.style.height = "5000px";
+ document.documentElement.scrollTop = 500;
+ document.documentElement.scrollLeft = 500;
+ cb();
+ } },
+ { description: "Scroll to only bottom by oblique line wheel event with overflow-x: hidden (body is scrollable)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 1.0, deltaY: 1.0, deltaZ: 0.0,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollDown },
+ { description: "Scroll to only bottom by oblique page wheel event with overflow-x: hidden (body is scrollable)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 1.0, deltaY: 1.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollDown },
+ { description: "Scroll to only top by oblique pixel wheel event with overflow-x: hidden (body is scrollable)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -16.0, deltaY: -16.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollUp },
+ { description: "Scroll to only top by oblique line wheel event with overflow-x: hidden (body is scrollable)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: -1.0, deltaY: -1.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollUp },
+ { description: "Scroll to only top by oblique page wheel event with overflow-x: hidden (body is scrollable)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: -1.0, deltaY: -1.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollUp,
+ cleanup (cb) { gScrollableElement.style.overflowX = "auto"; cb(); } },
+ { description: "Scroll to only right by oblique pixel wheel event with overflow-y: hidden (body is scrollable)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 16.0, deltaY: 16.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight,
+ prepare(cb) { gScrollableElement.style.overflowY = "hidden"; cb(); } },
+ { description: "Scroll to only right by oblique line wheel event with overflow-y: hidden (body is scrollable)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 1.0, deltaY: 1.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll to only right by oblique page wheel event with overflow-y: hidden (body is scrollable)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 1.0, deltaY: 1.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll to only left by oblique pixel wheel event with overflow-y: hidden (body is scrollable)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -16.0, deltaY: -16.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Scroll to only top by oblique line wheel event with overflow-y: hidden (body is scrollable)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: -1.0, deltaY: -1.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Scroll to only top by oblique page wheel event with overflow-y: hidden (body is scrollable)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: -1.0, deltaY: -1.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: -1,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft,
+ cleanup (cb) {
+ gScrollableElement.style.overflowY = "auto";
+ gScrollableElement.style.position = "static";
+ gSpacerForBodyElement.style.width = "";
+ gSpacerForBodyElement.style.height = "";
+ cb();
+ } },
+ ];
+
+ var description;
+
+ var currentTestIndex = -1;
+ var isXReverted = (aSettings.deltaMultiplierX < 0);
+ var isYReverted = (aSettings.deltaMultiplierY < 0);
+
+ function doNextTest()
+ {
+ if (++currentTestIndex >= kTests.length) {
+ SimpleTest.executeSoon(aCallback);
+ return;
+ }
+
+ gScrollableElement.scrollTop = 1000;
+ gScrollableElement.scrollLeft = 1000;
+
+ var currentTest = kTests[currentTestIndex];
+ description = "doTestScroll(aSettings=" + aSettings.description + "), " + currentTest.description + ": ";
+ if (currentTest.prepare) {
+ // prepare() can make changes to a page such as
+ // changing the 'overflow' property which requires
+ // a repaint to take effect before sending
+ // scroll-wheel events.
+ currentTest.prepare(doWaitForPaintsAndScroll);
+ } else {
+ doTestCurrentScroll();
+ }
+ }
+
+ function doWaitForPaintsAndScroll() {
+ waitForAllPaintsFlushed(doTestCurrentScroll);
+ }
+
+ function doTestCurrentScroll() {
+ var currentTest = kTests[currentTestIndex];
+ sendWheelAndWait(10, 10, currentTest.event, function () {
+ if (currentTest.expected == kNoScroll) {
+ is(gScrollableElement.scrollTop, 1000, description + "scrolled vertical");
+ is(gScrollableElement.scrollLeft, 1000, description + "scrolled horizontal");
+ } else {
+ var scrollUp = !isYReverted ? (currentTest.expected & kScrollUp) :
+ (currentTest.expected & kScrollDown);
+ var scrollDown = !isYReverted ? (currentTest.expected & kScrollDown) :
+ (currentTest.expected & kScrollUp);
+ if (scrollUp) {
+ ok(gScrollableElement.scrollTop < 1000, description + "not scrolled up, got " + gScrollableElement.scrollTop);
+ } else if (scrollDown) {
+ ok(gScrollableElement.scrollTop > 1000, description + "not scrolled down, got " + gScrollableElement.scrollTop);
+ } else {
+ is(gScrollableElement.scrollTop, 1000, description + "scrolled vertical");
+ }
+ var scrollLeft = !isXReverted ? (currentTest.expected & kScrollLeft) :
+ (currentTest.expected & kScrollRight);
+ var scrollRight = !isXReverted ? (currentTest.expected & kScrollRight) :
+ (currentTest.expected & kScrollLeft);
+ if (scrollLeft) {
+ ok(gScrollableElement.scrollLeft < 1000, description + "not scrolled to left, got " + gScrollableElement.scrollLeft);
+ } else if (scrollRight) {
+ ok(gScrollableElement.scrollLeft > 1000, description + "not scrolled to right, got " + gScrollableElement.scrollLeft);
+ } else {
+ is(gScrollableElement.scrollLeft, 1000, description + "scrolled horizontal");
+ }
+ }
+ if (currentTest.cleanup) {
+ currentTest.cleanup(nextStep);
+ } else {
+ nextStep();
+ }
+
+ function nextStep() {
+ winUtils.advanceTimeAndRefresh(100);
+ doNextTest();
+ }
+ });
+ }
+ doNextTest();
+}
+
+function doTestHorizontalizedScroll(aSettings, aCallback)
+{
+ const kNoScroll = 0x00;
+ const kScrollLeft = 0x01;
+ const kScrollRight = 0x02;
+
+ const kTests = [
+ { description: "Scroll to right by pixel scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll to right by pixel scroll when lineOrPageDelta is 1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll to left by pixel scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Scroll to left by pixel scroll when lineOrPageDelta is -1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: -1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Don't scroll by deltaX (pixel scroll, lineOrPageDelta is 0)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll },
+ { description: "Don't scroll by deltaX (pixel scroll, lineOrPageDelta is 1)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll },
+ { description: "Don't scroll by negative deltaX (pixel scroll, lineOrPageDelta is 0)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll },
+ { description: "Don't scroll by negative deltaX (pixel scroll, lineOrPageDelta is -1)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll },
+ { description: "Scroll only to right by diagonal pixel scroll (to bottom-right)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll only to right by diagonal pixel scroll (to bottom-left)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll only to left by diagonal pixel scroll (to top-left)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Scroll only to left by pixel scroll (to bottom-right)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Don't scroll by pixel scroll for z-axis",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 0.0, deltaZ: 1.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll },
+
+ { description: "Scroll to right by line scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll to right by line scroll when lineOrPageDelta is 1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll to left by line scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Scroll to left by line scroll when lineOrPageDelta is -1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: -1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Don't scroll by deltaX (line scroll, lineOrPageDelta is 0)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll },
+ { description: "Don't scroll by deltaX (line scroll, lineOrPageDelta is 1)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll },
+ { description: "Don't scroll by negative deltaX (line scroll, lineOrPageDelta is 0)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll },
+ { description: "Don't scroll by negative deltaY (line scroll, lineOrPageDelta is -1)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll },
+ { description: "Scroll only to right by diagonal line scroll (to bottom-right)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.5, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll only to right by diagonal line scroll (to bottom-left)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: -0.5, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll only to left by diagonal line scroll (to top-left)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: -0.5, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Scroll only to left by line scroll (to top-right)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.5, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Don't scroll by line scroll for z-axis",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: 0.0, deltaZ: 1.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll },
+
+ { description: "Scroll to right by page scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll to right by page scroll when lineOrPageDelta is 1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll to left by page scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Scroll to left by page scroll when lineOrPageDelta is -1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: -1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Don't scroll by deltaX (page scroll, lineOrPageDelta is 0)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll },
+ { description: "Don't scroll by deltaX (page scroll, lineOrPageDelta is 1)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll },
+ { description: "Don't scroll by deltaX (page scroll, lineOrPageDelta is 0)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll },
+ { description: "Don't scroll by deltaX (page scroll, lineOrPageDelta is -1)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll },
+ { description: "Scroll only to right by diagonal page scroll (to bottom-right)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.5, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll only to right by diagonal page scroll (to bottom-left)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: -0.5, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollRight },
+ { description: "Scroll only to left by diagonal page scroll (to top-left)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: -0.5, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Scroll only to left by diagonal page scroll (to top-right)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.5, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kScrollLeft },
+ { description: "Don't scroll by page scroll for z-axis",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: 0.0, deltaZ: 1.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: true, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ expected: kNoScroll },
+ ];
+
+ var description;
+
+ var currentTestIndex = -1;
+ // deltaY should cause horizontal scroll and affected by deltaMultiplierY.
+ // So, horizontal scroll amount and direction is affected by deltaMultiplierY.
+ var isXReverted = (aSettings.deltaMultiplierY < 0);
+
+ function doNextTest()
+ {
+ if (++currentTestIndex >= kTests.length) {
+ SimpleTest.executeSoon(aCallback);
+ return;
+ }
+
+ gScrollableElement.scrollTop = 1000;
+ gScrollableElement.scrollLeft = 1000;
+
+ var currentTest = kTests[currentTestIndex];
+ description = "doTestHorizontalizedScroll(aSettings=" + aSettings.description + "), " + currentTest.description + ": ";
+ if (currentTest.prepare) {
+ currentTest.prepare(doTestCurrentScroll);
+ } else {
+ doTestCurrentScroll();
+ }
+ }
+
+ function doTestCurrentScroll() {
+ var currentTest = kTests[currentTestIndex];
+ sendWheelAndWait(10, 10, currentTest.event, function () {
+ is(gScrollableElement.scrollTop, 1000, description + "scrolled vertical");
+ if (currentTest.expected == kNoScroll) {
+ is(gScrollableElement.scrollLeft, 1000, description + "scrolled horizontal");
+ } else {
+ var scrollLeft = !isXReverted ? (currentTest.expected & kScrollLeft) :
+ (currentTest.expected & kScrollRight);
+ var scrollRight = !isXReverted ? (currentTest.expected & kScrollRight) :
+ (currentTest.expected & kScrollLeft);
+ if (scrollLeft) {
+ ok(gScrollableElement.scrollLeft < 1000, description + "not scrolled to left, got " + gScrollableElement.scrollLeft);
+ } else if (scrollRight) {
+ ok(gScrollableElement.scrollLeft > 1000, description + "not scrolled to right, got " + gScrollableElement.scrollLeft);
+ } else {
+ is(gScrollableElement.scrollLeft, 1000, description + "scrolled horizontal");
+ }
+ }
+ if (currentTest.cleanup) {
+ currentTest.cleanup(nextStep);
+ } else {
+ nextStep();
+ }
+
+ function nextStep() {
+ winUtils.advanceTimeAndRefresh(100);
+ doNextTest();
+ }
+ });
+ }
+ doNextTest();
+}
+
+// It will take *freaking* long time(maybe *hours*) to test all the writing mode
+// combinations for the scroll target and its root, because there are altogether
+// *one hundred* combinations (10 x 10)!
+//
+// So unless you really don't care a snap on time-consuming testing or a strict
+// criteria is required for testing, it is strongly recommeneded that you
+// comment out at least the writing modes which are marked as "peculiar" before
+// running this test, you are encouraged to also comment out those "uncommon"
+// writing modes in order to further shorten testing time.
+//
+// Note that if you are going to run time-consuming tests without commenting out
+// most of the writing modes, don't forget to increase the value of the
+// parameter in SimpleTest.requestLongerTimeout in this file; otherwise it'll
+// most likely lead you to a timed-out failure.
+//
+// Also note that |isBTT| has nothing to do with the behaviour of auto-dir
+// scrolling, it's just used to set the sign of |kOrigScrollTop|.
+const kWritingModes = [
+ {
+ isRTL: true,
+ isBTT: false,
+ styles: [
+ {
+ writingMode: "horizontal-tb",
+ direction: "rtl",
+ },
+ {
+ writingMode: "vertical-rl",
+ direction: "ltr",
+ },
+ // uncommon
+ //{
+ // writingMode: "sideways-rl",
+ // direction: "ltr",
+ //},
+ ],
+ },
+ {
+ isRTL: false,
+ isBTT: false,
+ styles: [
+ {
+ writingMode: "horizontal-tb",
+ direction: "ltr",
+ },
+ // uncommon
+ //{
+ // writingMode: "vertical-lr",
+ // direction: "ltr",
+ //},
+ // uncommon
+ //{
+ // writingMode: "sideways-lr",
+ // direction: "ltr",
+ //},
+ ],
+ },
+ {
+ isRTL: true,
+ isBTT: true,
+ styles: [
+ // peculiar
+ //{
+ // writingMode: "vertical-rl",
+ // direction: "rtl",
+ //},
+ // peculiar
+ //{
+ // writingMode: "sideways-rl",
+ // direction: "rtl",
+ //},
+ ],
+ },
+ {
+ isRTL: false,
+ isBTT: true,
+ styles: [
+ // peculiar
+ //{
+ // writingMode: "vertical-lr",
+ // direction: "rtl",
+ //},
+ // peculiar
+ //{
+ // writingMode: "sideways-lr",
+ // direction: "rtl",
+ //},
+ ],
+ },
+];
+
+function getFirstWritingModeStyle()
+{
+ if (kWritingModes.length < 1) {
+ return false;
+ }
+ let typeIndex = 0;
+ while (!kWritingModes[typeIndex].styles.length) {
+ typeIndex++;
+ if (typeIndex >= kWritingModes.length) {
+ return false;
+ }
+ }
+ return {typeIndex, styleIndex: 0};
+}
+
+function getNextWritingModeStyle(curStyle)
+{
+ let typeIndex = curStyle.typeIndex;
+ let styleIndex = curStyle.styleIndex + 1;
+ while (typeIndex < kWritingModes.length) {
+ if (styleIndex < kWritingModes[typeIndex].styles.length) {
+ return {typeIndex, styleIndex};
+ }
+ typeIndex++;
+ styleIndex = 0;
+ }
+ return false;
+}
+
+function doTestAutoDirScroll(aSettings, aAutoDirTrait, aCallback)
+{
+ // Go through all the writing-mode combinations for the scroll target and its
+ // root.
+
+ let firstStyle = getFirstWritingModeStyle();
+ if (!firstStyle) {
+ // The whole writing mode list is empty, no need to do any test for auto-dir
+ // scrolling. Go ahead with the subsequent tests.
+ SimpleTest.executeSoon(aCallback);
+ return;
+ }
+
+ // Begin with the first style for both the root and the scroll target.
+ // doTestAutoDirScroll2 will recursively call itself back for every
+ // style combination with getNextWritingModeStyle until all combinations have
+ // been enumerated, and then it will call SimpleTest.executeSoon(aCallback).
+ doTestAutoDirScroll2(aSettings, aAutoDirTrait,
+ firstStyle, firstStyle,
+ aCallback);
+}
+
+function doTestAutoDirScroll2(aSettings, aAutoDirTrait,
+ aStyleForRoot, aStyleForTarget,
+ aCallback)
+{
+ const kStyleTypeForRoot = kWritingModes[aStyleForRoot.typeIndex];
+ const kStyleTypeForTarget = kWritingModes[aStyleForTarget.typeIndex];
+
+ const kStyleForRoot = kStyleTypeForRoot.styles[aStyleForRoot.styleIndex];
+ const kStyleForTarget = kStyleTypeForTarget.styles[aStyleForTarget.styleIndex];
+
+ const kIsRootRTL = kStyleTypeForRoot.isRTL;
+ const kIsTargetRTL = kStyleTypeForTarget.isRTL;
+ // Just used to set the sign of |kOrigScrollTop|, not related to the auto-dir
+ // behaviour.
+ const kIsTargetBTT = kStyleTypeForTarget.isBTT;
+
+ const kOldStyleForRoot = {};
+ const kOldStyleForTarget = {};
+
+ const kHonoursRoot = Boolean(aAutoDirTrait.honoursRoot);
+
+ const kNoScroll = 0x00;
+ const kScrollUp = 0x01;
+ const kScrollDown = 0x02;
+ const kScrollLeft = 0x04;
+ const kScrollRight = 0x08;
+
+ // The four constants indicate the expected result if the scroll direction is
+ // adjusted.
+ const kAdjustedForUp = {};
+ const kAdjustedForDown = {};
+ const kAdjustedForLeft = {};
+ const kAdjustedForRight = {};
+ if (kHonoursRoot ? kIsRootRTL : kIsTargetRTL) {
+ kAdjustedForUp.result = kScrollRight;
+ kAdjustedForUp.desc = "right";
+ kAdjustedForDown.result = kScrollLeft;
+ kAdjustedForDown.desc = "left";
+ kAdjustedForLeft.result = kScrollDown;
+ kAdjustedForLeft.desc = "bottom";
+ kAdjustedForRight.result = kScrollUp;
+ kAdjustedForRight.desc = "top";
+ } else {
+ kAdjustedForUp.result = kScrollLeft;
+ kAdjustedForUp.desc = "left";
+ kAdjustedForDown.result = kScrollRight;
+ kAdjustedForDown.desc = "right";
+ kAdjustedForLeft.result = kScrollUp;
+ kAdjustedForLeft.desc = "top";
+ kAdjustedForRight.result = kScrollDown;
+ kAdjustedForRight.desc = "bottom";
+ }
+
+ const kTests = [
+ // Tests: Test pixel scrolling towards four edges when the target
+ // overflows in both the two directions.
+ // Results: All are unadjusted.
+ // Reason: Auto-dir adjustment never applies to a target which overflows in
+ // both the two directions.
+ { description: "auto-dir scroll to bottom by pixel scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollDown,
+ prepare (cb) {
+ // Static contents will not start from the topleft side in some
+ // writing modes, for ease of coding, we simply absolutely
+ // position the target to the topleft in every case.
+ gScrollableElement.style.position = "absolute";
+ gScrollableElement.style.top = "10px";
+ gScrollableElement.style.left = "10px";
+ SpecialPowers.pushPrefEnv({
+ "set": [["mousewheel.autodir.enabled", true],
+ ["mousewheel.autodir.honourroot", kHonoursRoot]]
+ }, cb);
+ } },
+ { description: "auto-dir scroll to bottom by pixel scroll when lineOrPageDelta is 1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollDown },
+ { description: "auto-dir scroll to top by pixel scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollUp },
+ { description: "auto-dir scroll to top by pixel scroll when lineOrPageDelta is -1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: -1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollUp },
+ { description: "auto-dir scroll to right by pixel scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollRight },
+ { description: "auto-dir scroll to right by pixel scroll when lineOrPageDelta is 1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollRight },
+ { description: "auto-dir scroll to left by pixel scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollLeft },
+ { description: "auto-dir scroll to left by pixel scroll when lineOrPageDelta is -1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollLeft },
+
+ // Tests: Test diagonal pixel scrolling when the target overflows in both
+ // the two directions.
+ // Results: All are unadjusted.
+ // Reason: Auto-dir adjustment never applies to a target which overflows in
+ // both the two directions, furthermore, it never applies to
+ // diagonal scrolling.
+ { description: "auto-dir scroll to bottom-right by pixel scroll",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollDown | kScrollRight },
+ { description: "auto-dir scroll to bottom-left by pixel scroll",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollDown | kScrollLeft },
+ { description: "auto-dir scroll to top-left by pixel scroll",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollUp | kScrollLeft },
+ { description: "auto-dir scroll to top-right by pixel scroll",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollUp | kScrollRight },
+
+ // Tests: Test line scrolling towards four edges when the target overflows
+ // in both the two directions.
+ // Results: All are unadjusted.
+ // Reason: Auto-dir adjustment never applies to a target which overflows in
+ // both the two directions.
+ { description: "auto-dir scroll to bottom by line scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollDown },
+ { description: "auto-dir scroll to bottom by line scroll when lineOrPageDelta is 1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollDown },
+ { description: "auto-dir scroll to top by line scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollUp },
+ { description: "auto-dir scroll to top by line scroll when lineOrPageDelta is -1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: -1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollUp },
+ { description: "auto-dir scroll to right by line scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollRight },
+ { description: "auto-dir scroll to right by line scroll when lineOrPageDelta is 1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollRight },
+ { description: "auto-dir scroll to left by line scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollLeft },
+ { description: "auto-dir scroll to left by line scroll when lineOrPageDelta is -1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollLeft },
+
+ // Tests: Test diagonal line scrolling when the target overflows in both
+ // the two directions.
+ // Results: All are unadjusted.
+ // Reason: Auto-dir adjustment never applies to a target which overflows in
+ // both the two directions, furthermore, it never applies to
+ // diagonal scrolling.
+ { description: "auto-dir scroll to bottom-right by line scroll",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.5, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollDown | kScrollRight },
+ { description: "auto-dir scroll to bottom-left by line scroll",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: -0.5, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollDown | kScrollLeft },
+ { description: "auto-dir scroll to top-left by line scroll",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: -0.5, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollUp | kScrollLeft },
+ { description: "auto-dir scroll to top-right by line scroll",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.5, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollUp | kScrollRight },
+
+ // Tests: Test page scrolling towards four edges when the target overflows
+ // in both the two directions.
+ // Results: All are unadjusted.
+ // Reason: Auto-dir adjustment never applies to a target which overflows in
+ // both the two directions.
+ { description: "auto-dir scroll to bottom by page scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollDown },
+ { description: "auto-dir scroll to bottom by page scroll when lineOrPageDelta is 1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollDown },
+ { description: "auto-dir scroll to top by page scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollUp },
+ { description: "auto-dir scroll to top by page scroll when lineOrPageDelta is -1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: -1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollUp },
+ { description: "auto-dir scroll to right by page scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollRight },
+ { description: "auto-dir scroll to right by page scroll when lineOrPageDelta is 1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollRight },
+ { description: "auto-dir scroll to left by page scroll even if lineOrPageDelta is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollLeft },
+ { description: "auto-dir scroll to left by page scroll when lineOrPageDelta is -1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollLeft },
+
+ // Tests: Test diagonal page scrolling when the target overflows in both
+ // the two directions.
+ // Results: All are unadjusted.
+ // Reason: Auto-dir adjustment never applies to a target which overflows in
+ // both the two directions, furthermore, it never applies to
+ // diagonal scrolling.
+ { description: "auto-dir scroll to bottom-right by page scroll",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.5, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollDown | kScrollRight },
+ { description: "auto-dir scroll to bottom-left by page scroll",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: -0.5, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollDown | kScrollLeft },
+ { description: "auto-dir scroll to top-left by page scroll",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: -0.5, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollUp | kScrollLeft },
+ { description: "auto-dir scroll to top-right by page scroll",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.5, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollUp | kScrollRight },
+
+ // The tests above in this function are all for testing a target with two
+ // scrollbars. All of them should not be adjustable.
+ // From here on, the tests below in this function are all for testing a
+ // target with only one scrollbar, either a vertical scrollbar or horizontal
+ // scrollbar. Some of them are adjustable.
+
+ // Tests: Test pixel scrolling towards four edges when the target
+ // overflows only in the horizontal direction.
+ // Results: Vertical wheel scrolls are adjusted to be horizontal whereas the
+ // horizontal wheel scrolls are unadjusted.
+ // Reason: Auto-dir adjustment applies to a target if the target overflows
+ // in only one direction and the direction is orthogonal to the
+ // wheel and deltaZ is zero.
+ { description: "auto-dir scroll to " + kAdjustedForDown.desc +
+ "(originally bottom) by pixel scroll even if lineOrPageDelta is 0, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForDown.result,
+ prepare (cb) {
+ gScrollableElement.style.overflowX = "auto";
+ gScrollableElement.style.overflowY = "hidden";
+ resetScrollPosition(gScrollableElement);
+ cb();
+ } },
+ { description: "auto-dir scroll to " + kAdjustedForDown.desc +
+ "(originally bottom) by pixel scroll when lineOrPageDelta is 1, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForDown.result },
+ { description: "auto-dir scroll to " + kAdjustedForUp.desc +
+ "(originally top) by pixel scroll even if lineOrPageDelta is 0, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForUp.result },
+ { description: "auto-dir scroll to " + kAdjustedForUp.desc +
+ "(originally top) by pixel scroll when lineOrPageDelta is -1, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: -1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForUp.result },
+ { description: "auto-dir scroll to right by pixel scroll even if lineOrPageDelta is 0, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollRight },
+ { description: "auto-dir scroll to right by pixel scroll when lineOrPageDelta is 1, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollRight },
+ { description: "auto-dir scroll to left by pixel scroll even if lineOrPageDelta is 0, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollLeft },
+ { description: "auto-dir scroll to left by pixel scroll when lineOrPageDelta is -1, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollLeft },
+
+ // Tests: Test pixel scrolling towards four edges when the target
+ // overflows only in the vertical direction.
+ // Results: Horizontal wheel scrolls are adjusted to be vertical whereas the
+ // vertical wheel scrolls are unadjusted.
+ // Reason: Auto-dir adjustment applies to a target if the target overflows
+ // in only one direction and the direction is orthogonal to the
+ // wheel and deltaZ is zero.
+ { description: "auto-dir scroll to bottom by pixel scroll even if lineOrPageDelta is 0, " +
+ "no horizontal scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollDown,
+ prepare (cb) {
+ gScrollableElement.style.overflowX = "hidden";
+ gScrollableElement.style.overflowY = "auto";
+ resetScrollPosition(gScrollableElement);
+ cb();
+ } },
+ { description: "auto-dir scroll to bottom by pixel scroll when lineOrPageDelta is 1, " +
+ "no horizontal scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollDown },
+ { description: "auto-dir scroll to top by pixel scroll even if lineOrPageDelta is 0, " +
+ "no horizontal scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollUp },
+ { description: "auto-dir scroll to top by pixel scroll when lineOrPageDelta is -1, " +
+ "no horizontal scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: -1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollUp },
+ { description: "auto-dir scroll to " + kAdjustedForRight.desc +
+ "(originally right) by pixel scroll even if lineOrPageDelta is 0, " +
+ "no horizontal scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForRight.result },
+ { description: "auto-dir scroll to " + kAdjustedForRight.desc +
+ "(originally right) by pixel scroll when lineOrPageDelta is 1, " +
+ "no horizontal scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForRight.result },
+ { description: "auto-dir scroll to " + kAdjustedForLeft.desc +
+ "(originally left) by pixel scroll even if lineOrPageDelta is 0, " +
+ "no horizontal scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForLeft.result },
+ { description: "auto-dir scroll to " + kAdjustedForLeft.desc +
+ "(originally left) by pixel scroll when lineOrPageDelta is -1, " +
+ "no horizontal scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForLeft.result },
+
+ // Tests: Test line scrolling towards four edges when the target overflows
+ // only in the horizontal direction.
+ // Results: Vertical wheel scrolls are adjusted to be horizontal whereas the
+ // horizontal wheel scrolls are unadjusted.
+ // Reason: Auto-dir adjustment applies to a target if the target overflows
+ // in only one direction and the direction is orthogonal to the
+ // wheel and deltaZ is zero.
+ { description: "auto-dir scroll to " + kAdjustedForDown.desc +
+ "(originally bottom) by line scroll even if lineOrPageDelta is 0, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForDown.result,
+ prepare (cb) {
+ gScrollableElement.style.overflowX = "auto";
+ gScrollableElement.style.overflowY = "hidden";
+ resetScrollPosition(gScrollableElement);
+ cb();
+ } },
+ { description: "auto-dir scroll to " + kAdjustedForDown.desc +
+ "(originally bottom) by line scroll when lineOrPageDelta is 1, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForDown.result },
+ { description: "auto-dir scroll to " + kAdjustedForUp.desc +
+ "(originally top) by line scroll even if lineOrPageDelta is 0, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForUp.result },
+ { description: "auto-dir scroll to " + kAdjustedForUp.desc +
+ "(originally top) by line scroll when lineOrPageDelta is -1, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: -1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForUp.result },
+ { description: "auto-dir scroll to right by line scroll even if lineOrPageDelta is 0, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollRight },
+ { description: "auto-dir scroll to right by line scroll when lineOrPageDelta is 1, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollRight },
+ { description: "auto-dir scroll to left by line scroll even if lineOrPageDelta is 0, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollLeft },
+ { description: "auto-dir scroll to left by line scroll when lineOrPageDelta is -1, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollLeft },
+
+ // Tests: Test line scrolling towards four edges when the target overflows
+ // only in the vertical direction.
+ // Results: Horizontal wheel scrolls are adjusted to be vertical whereas the
+ // vertical wheel scrolls are unadjusted.
+ // Reason: Auto-dir adjustment applies to a target if the target overflows
+ // in only one direction and the direction is orthogonal to the
+ // wheel and deltaZ is zero.
+ { description: "auto-dir scroll to bottom by line scroll even if lineOrPageDelta is 0, " +
+ "no horizontal scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollDown,
+ prepare (cb) {
+ gScrollableElement.style.overflowX = "hidden";
+ gScrollableElement.style.overflowY = "auto";
+ resetScrollPosition(gScrollableElement);
+ cb();
+ } },
+ { description: "auto-dir scroll to bottom by line scroll when lineOrPageDelta is 1, " +
+ "no horizontal scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollDown },
+ { description: "auto-dir scroll to top by line scroll even if lineOrPageDelta is 0, " +
+ "no horizontal scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollUp },
+ { description: "auto-dir scroll to top by line scroll when lineOrPageDelta is -1, " +
+ "no horizontal scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: -1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollUp },
+ { description: "auto-dir scroll to " + kAdjustedForRight.desc +
+ "(originally right) by line scroll even if lineOrPageDelta is 0, " +
+ "no horizontal scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForRight.result },
+ { description: "auto-dir scroll to " + kAdjustedForRight.desc +
+ "(originally right) by line scroll when lineOrPageDelta is 1, " +
+ "no horizontal scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForRight.result },
+ { description: "auto-dir scroll to " + kAdjustedForLeft.desc +
+ "(originally left) by line scroll even if lineOrPageDelta is 0, " +
+ "no horizontal scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForLeft.result },
+ { description: "auto-dir scroll to " + kAdjustedForLeft.desc +
+ "(originally left) by line scroll when lineOrPageDelta is -1, " +
+ "no horizontal scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForLeft.result },
+
+ // Tests: Test page scrolling towards four edges when the target overflows
+ // only in the horizontal direction.
+ // Results: Vertical wheel scrolls are adjusted to be horizontal whereas the
+ // horizontal wheel scrolls are unadjusted.
+ // Reason: Auto-dir adjustment applies to a target if the target overflows
+ // in only one direction and the direction is orthogonal to the
+ // wheel and deltaZ is zero.
+ { description: "auto-dir scroll to " + kAdjustedForDown.desc +
+ "(originally bottom) by page scroll when lineOrPageDelta is 1, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForDown.result,
+ prepare (cb) {
+ gScrollableElement.style.overflowX = "auto";
+ gScrollableElement.style.overflowY = "hidden";
+ resetScrollPosition(gScrollableElement);
+ cb();
+ } },
+ { description: "auto-dir scroll to " + kAdjustedForDown.desc +
+ "(originally bottom) by page scroll even if lineOrPageDelta is 0, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForDown.result },
+ { description: "auto-dir scroll to " + kAdjustedForUp.desc +
+ "(originally top) by page scroll when lineOrPageDelta is -1, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: -1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForUp.result },
+ { description: "auto-dir scroll to " + kAdjustedForUp.desc +
+ "(originally top) by page scroll even if lineOrPageDelta is 0, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForUp.result },
+ { description: "auto-dir scroll to right by page scroll when lineOrPageDelta is 1, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollRight },
+ { description: "auto-dir scroll to right by page scroll even if lineOrPageDelta is 0, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollRight },
+ { description: "auto-dir scroll to left by page scroll when lineOrPageDelta is -1, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollLeft },
+ { description: "auto-dir scroll to left by page scroll even if lineOrPageDelta is 0, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollLeft },
+
+ // Tests: Test page scrolling towards four edges when the target overflows
+ // only in the vertical direction.
+ // Results: Horizontal wheel scrolls are adjusted to be vertical whereas the
+ // vertical wheel scrolls are unadjusted.
+ // Reason: Auto-dir adjustment applies to a target if the target overflows
+ // in only one direction and the direction is orthogonal to the
+ // wheel and deltaZ is zero.
+ { description: "auto-dir scroll to bottom by page scroll when lineOrPageDelta is 1, " +
+ "no horizontal scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollDown,
+ prepare (cb) {
+ gScrollableElement.style.overflowX = "hidden";
+ gScrollableElement.style.overflowY = "auto";
+ resetScrollPosition(gScrollableElement);
+ cb();
+ } },
+ { description: "auto-dir scroll to bottom by page scroll even if lineOrPageDelta is 0, " +
+ "no horizontal scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollDown },
+ { description: "auto-dir scroll to top by page scroll when lineOrPageDelta is -1, " +
+ "no horizontal scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: -1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollUp },
+ { description: "auto-dir scroll to top by page scroll even if lineOrPageDelta is 0, " +
+ "no horizontal scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollUp },
+ { description: "auto-dir scroll to " + kAdjustedForRight.desc +
+ "(originally right) by page scroll when lineOrPageDelta is 1, " +
+ "no horizontal scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForRight.result },
+ { description: "auto-dir scroll to " + kAdjustedForRight.desc +
+ "(originally right) by page scroll even if lineOrPageDelta is 0, " +
+ "no horizontal scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForRight.result },
+ { description: "auto-dir scroll to " + kAdjustedForLeft.desc +
+ "(originally left) by page scroll when lineOrPageDelta is -1, " +
+ "no horizontal scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForLeft.result },
+ { description: "auto-dir scroll to " + kAdjustedForLeft.desc +
+ "(originally left) by page scroll even if lineOrPageDelta is 0, " +
+ "no horizontal scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForLeft.result,
+ cleanup (cb) {
+ SpecialPowers.pushPrefEnv({"set":
+ [["mousewheel.autodir.enabled",
+ false]]},
+ cb);
+ } },
+ // Tests: Test that autodir scrolling can be force-enabled using windowUtils.
+ // This only tests vertical wheel scrolls being adjusted to be
+ // horizontal, rather than re-testing all autodir behaviours just for
+ // this way of enabling it.
+ // Results: Vertical wheel scrolls are adjusted to be horizontal whereas the
+ // horizontal wheel scrolls are unadjusted.
+ // Reason: Auto-dir adjustment applies to a target if the target overflows
+ // in only one direction and the direction is orthogonal to the
+ // wheel and deltaZ is zero.
+ { description: "force-enabled auto-dir scroll to " + kAdjustedForDown.desc +
+ "(originally bottom) by pixel scroll even if lineOrPageDelta is 0, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForDown.result,
+ prepare (cb) {
+ gScrollableElement.style.overflowX = "auto";
+ gScrollableElement.style.overflowY = "hidden";
+ resetScrollPosition(gScrollableElement);
+ winUtils.setMousewheelAutodir(gScrollableElement, true, kHonoursRoot)
+ cb();
+ } },
+ { description: "force-enabled auto-dir scroll to " + kAdjustedForDown.desc +
+ "(originally bottom) by pixel scroll when lineOrPageDelta is 1, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForDown.result },
+ { description: "force-enabled auto-dir scroll to " + kAdjustedForUp.desc +
+ "(originally top) by pixel scroll even if lineOrPageDelta is 0, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForUp.result },
+ { description: "force-enabled auto-dir scroll to " + kAdjustedForUp.desc +
+ "(originally top) by pixel scroll when lineOrPageDelta is -1, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: -1, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: true,
+ expected: kAdjustedForUp.result },
+ { description: "force-enabled auto-dir scroll to right by pixel scroll even if lineOrPageDelta is 0, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollRight },
+ { description: "force-enabled auto-dir scroll to right by pixel scroll when lineOrPageDelta is 1, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollRight },
+ { description: "force-enabled auto-dir scroll to left by pixel scroll even if lineOrPageDelta is 0, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollLeft },
+ { description: "force-enabled auto-dir scroll to left by pixel scroll when lineOrPageDelta is -1, " +
+ "no vertical scrollbar",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: 0, isMomentum: false,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0,
+ shiftKey: false, ctrlKey: false, altKey: false, metaKey: false, osKey: false },
+ adjusted: false,
+ expected: kScrollLeft,
+ cleanup (cb) {
+ gScrollableElement.style.position = "static";
+ gScrollableElement.style.top = "auto";
+ gScrollableElement.style.left = "auto";
+ gScrollableElement.style.overflow = "auto";
+ Object.assign(document.body.style, kOldStyleForRoot);
+ Object.assign(gScrollableElement.style, kOldStyleForTarget);
+ winUtils.setMousewheelAutodir(gScrollableElement, false, false);
+ cb();
+ } },
+ ];
+
+ let styleDescForRoot = "";
+ let styleDescForTarget = "";
+ Object.keys(kStyleForRoot).forEach(function(property)
+ {
+ kOldStyleForRoot[property] = document.body.style[property];
+ document.body.style[property] = kStyleForRoot[property];
+ if ("" !== styleDescForRoot) {
+ styleDescForRoot += " ";
+ }
+ styleDescForRoot += property + ": " + kStyleForRoot[property] + ";";
+ });
+ Object.keys(kStyleForTarget).forEach(function(property)
+ {
+ kOldStyleForTarget[property] = gScrollableElement.style[property];
+ gScrollableElement.style[property] = kStyleForTarget[property];
+ if ("" !== styleDescForTarget) {
+ styleDescForTarget += " ";
+ }
+ styleDescForTarget += property + ": " +
+ kStyleForTarget[property] + ";";
+ });
+
+ let description;
+ let currentTestIndex = -1;
+ let isXReverted = aSettings.deltaMultiplierX < 0;
+ let isYReverted = aSettings.deltaMultiplierY < 0;
+
+ // We are doing a "trick" here:
+ // If the `kHonoursRoot` is true and the scroll target and the root's contents
+ // are both LTR or both RTL, we can safely skip these tests, because the same
+ // behavior is tested when the `kHonoursRoot` is false.
+ if (kHonoursRoot && kIsRootRTL === kIsTargetRTL) {
+ currentTestIndex = kTests.length;
+ }
+
+ const kOrigScrollLeft = kIsTargetRTL ? -1000 : 1000;
+ const kOrigScrollTop = kIsTargetBTT ? -1000 : 1000;
+
+ function doNextTest()
+ {
+ if (++currentTestIndex >= kTests.length) {
+ // The tests for the current writing mode combination have been finished.
+ // Continue the tests for the next writing mode combination, if any.
+ let nextStyleForRoot;
+ let nextStyleForTarget;
+ nextStyleForTarget = getNextWritingModeStyle(aStyleForTarget);
+ if (nextStyleForTarget) {
+ nextStyleForRoot = aStyleForRoot;
+ } else {
+ nextStyleForRoot = getNextWritingModeStyle(aStyleForRoot);
+ if (!nextStyleForRoot) {
+ // All writing mode combinations have been enumerated, so stop
+ // recursively calling doTestAutoDirScroll2, and go ahead with the
+ // subsequent tests.
+ SimpleTest.executeSoon(aCallback);
+ return;
+ }
+ nextStyleForTarget = getFirstWritingModeStyle();
+ }
+ doTestAutoDirScroll2(aSettings, aAutoDirTrait,
+ nextStyleForRoot, nextStyleForTarget,
+ aCallback);
+ return;
+ }
+
+ gScrollableElement.scrollTop = kOrigScrollTop;
+ gScrollableElement.scrollLeft = kOrigScrollLeft;
+
+ var currentTest = kTests[currentTestIndex];
+ description = "doTestAutoDirScroll(aSettings=" + aSettings.description + ", ";
+ if (kHonoursRoot) {
+ description += "{honoursRoot: true}), ";
+ } else {
+ description += "{honoursRoot: false}), ";
+ }
+ description += "root = " + styleDescForRoot + " ";
+ description += "target = " + styleDescForTarget + " ";
+ if (currentTest.adjusted) {
+ description += "adjusted ";
+ } else {
+ description += "unadjusted ";
+ }
+ description += currentTest.description + ": ";
+ if (currentTest.prepare) {
+ currentTest.prepare(doTestCurrentScroll);
+ } else {
+ doTestCurrentScroll();
+ }
+ }
+
+ function doTestCurrentScroll() {
+ var currentTest = kTests[currentTestIndex];
+ sendWheelAndWait(100, 100, currentTest.event, function () {
+ if (currentTest.expected == kNoScroll) {
+ is(gScrollableElement.scrollTop, kOrigScrollTop, description + "scrolled vertical");
+ is(gScrollableElement.scrollLeft, kOrigScrollLeft, description + "scrolled horizontal");
+ } else {
+ // If auto-dir adjustment occurs, temporarily swap |isYReverted| and
+ // |isXReverted|.
+ if (currentTest.adjusted) {
+ [isYReverted, isXReverted] = [isXReverted, isYReverted];
+ }
+ let scrollUp = !isYReverted ? (currentTest.expected & kScrollUp) :
+ (currentTest.expected & kScrollDown);
+ let scrollDown = !isYReverted ? (currentTest.expected & kScrollDown) :
+ (currentTest.expected & kScrollUp);
+ if (scrollUp) {
+ ok(gScrollableElement.scrollTop < kOrigScrollTop,
+ description + "not scrolled up, got " + gScrollableElement.scrollTop);
+ } else if (scrollDown) {
+ ok(gScrollableElement.scrollTop > kOrigScrollTop,
+ description + "not scrolled down, got " + gScrollableElement.scrollTop);
+ } else {
+ is(gScrollableElement.scrollTop, kOrigScrollTop,
+ description + "scrolled vertical");
+ }
+ var scrollLeft = !isXReverted ? (currentTest.expected & kScrollLeft) :
+ (currentTest.expected & kScrollRight);
+ var scrollRight = !isXReverted ? (currentTest.expected & kScrollRight) :
+ (currentTest.expected & kScrollLeft);
+ if (scrollLeft) {
+ ok(gScrollableElement.scrollLeft < kOrigScrollLeft,
+ description + "not scrolled to left, got " + gScrollableElement.scrollLeft);
+ } else if (scrollRight) {
+ ok(gScrollableElement.scrollLeft > kOrigScrollLeft,
+ description + "not scrolled to right, got " + gScrollableElement.scrollLeft);
+ } else {
+ is(gScrollableElement.scrollLeft, kOrigScrollLeft,
+ description + "scrolled horizontal");
+ }
+ // |isYReverted| and |isXReverted| have been temporarily swaped for
+ // auto-dir adjustment, restore them.
+ if (currentTest.adjusted) {
+ [isYReverted, isXReverted] = [isXReverted, isYReverted];
+ }
+ }
+ if (currentTest.cleanup) {
+ currentTest.cleanup(nextStep);
+ } else {
+ nextStep();
+ }
+
+ function nextStep() {
+ winUtils.advanceTimeAndRefresh(100);
+ doNextTest();
+ }
+ });
+ }
+ doNextTest();
+}
+
+function doTestZoom(aSettings, aCallback)
+{
+ if ((aSettings.deltaMultiplierX != 1.0 && aSettings.deltaMultiplierX != -1.0) ||
+ (aSettings.deltaMultiplierY != 1.0 && aSettings.deltaMultiplierY != -1.0)) {
+ todo(false, "doTestZoom doesn't support to test with aSettings=" + aSettings.description);
+ SimpleTest.executeSoon(aCallback);
+ return;
+ }
+
+ const kNone = 0x00;
+ const kPositive = 0x01;
+ const kNegative = 0x02;
+ const kUseX = 0x10;
+ const kUseY = 0x20;
+ const kTests = [
+ { description: "by vertical/positive pixel event when its lineOrPageDeltaY is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kNone },
+ { description: "by vertical/positive pixel event when its lineOrPageDeltaY is 1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kPositive | kUseY },
+ { description: "by vertical/negative pixel event when its lineOrPageDeltaY is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kNone },
+ { description: "by vertical/negative pixel event when its lineOrPageDeltaY is -1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: -8.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: -1,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kNegative | kUseY },
+ { description: "by horizotal/positive pixel event when its lineOrPageDeltaX is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kNone },
+ { description: "by horizotal/positive pixel event when its lineOrPageDeltaX is 1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 0,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kPositive | kUseX },
+ { description: "by horizotal/negative pixel event when its lineOrPageDeltaX is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kNone },
+ { description: "by horizotal/negative pixel event when its lineOrPageDeltaX is -1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -8.0, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: 0,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kNegative | kUseX },
+ { description: "by z pixel event",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 0.0, deltaZ: 16.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kNone },
+
+ { description: "by vertical/positive line event when its lineOrPageDeltaY is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kNone },
+ { description: "by vertical/positive line event when its lineOrPageDeltaY is 1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kPositive | kUseY },
+ { description: "by vertical/negative line event when its lineOrPageDeltaY is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kNone },
+ { description: "by vertical/negative line event when its lineOrPageDeltaY is -1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: -1,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kNegative | kUseY },
+ { description: "by horizotal/positive line event when its lineOrPageDeltaX is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kNone },
+ { description: "by horizotal/positive line event when its lineOrPageDeltaX is 1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 0,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kPositive | kUseX },
+ { description: "by horizotal/negative line event when its lineOrPageDeltaX is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kNone },
+ { description: "by horizotal/negative line event when its lineOrPageDeltaX is -1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: 0,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kNegative | kUseX },
+ { description: "by z line event",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: 0.0, deltaZ: 1.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kNone },
+
+ { description: "by vertical/positive page event when its lineOrPageDeltaY is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kNone },
+ { description: "by vertical/positive page event when its lineOrPageDeltaY is 1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: 0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kPositive | kUseY },
+ { description: "by vertical/negative page event when its lineOrPageDeltaY is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kNone },
+ { description: "by vertical/negative page event when its lineOrPageDeltaY is -1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: -0.5, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: -1,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kNegative | kUseY },
+ { description: "by horizotal/positive page event when its lineOrPageDeltaX is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kNone },
+ { description: "by horizotal/positive page event when its lineOrPageDeltaX is 1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 0,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kPositive | kUseX },
+ { description: "by horizotal/negative page event when its lineOrPageDeltaX is 0",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kNone },
+ { description: "by horizotal/negative page event when its lineOrPageDeltaX is -1",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: -0.5, deltaY: 0.0, deltaZ: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: 0,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kNegative | kUseX },
+ { description: "by z page event",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: 0.0, deltaZ: 1.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0,
+ expectedOverflowDeltaX: 0, expectedOverflowDeltaY: 0 },
+ expected: kNone },
+ ];
+
+ var description, currentTest;
+ var currentTestIndex = -1;
+ var isXReverted = (aSettings.deltaMultiplierX < 0);
+ var isYReverted = (aSettings.deltaMultiplierY < 0);
+
+ function doNextTest() {
+ if (++currentTestIndex >= kTests.length) {
+ SimpleTest.executeSoon(aCallback);
+ return;
+ }
+
+ gScrollableElement.scrollTop = 1000;
+ gScrollableElement.scrollLeft = 1000;
+
+ currentTest = kTests[currentTestIndex];
+ description = "doTestZoom(aSettings=" + aSettings.description + "), ";
+ if (currentTest.expected == kNone) {
+ description += "Shouldn't ";
+ } else {
+ description += "Should ";
+ }
+ description += "zoom " + currentTest.description + ": ";
+
+ var event = currentTest.event;
+ event.ctrlKey = true;
+
+ // NOTE: Zooming might change scrollTop and scrollLeft by rounding fraction.
+ // This test assume that zoom happens synchronously and scrolling
+ // happens asynchronously.
+ var scrollTop = gScrollableElement.scrollTop;
+ var scrollLeft = gScrollableElement.scrollLeft;
+
+ fullZoomChangePromise = new Promise(resolve => {
+ if (currentTest.expected & (kNegative | kPositive)) {
+ // Zoom causes a resize of the viewport.
+ window.addEventListener("resize", function onResize() {
+ if (SpecialPowers.getFullZoom(window) != 1) {
+ window.removeEventListener("resize", onResize);
+ setTimeout(() => resolve(), 0);
+ }
+ });
+ } else {
+ resolve();
+ }
+ });
+
+ sendWheelAndWait(10, 10, event, function () {
+ is(gScrollableElement.scrollTop, scrollTop, description + "scrolled vertical");
+ is(gScrollableElement.scrollLeft, scrollLeft, description + "scrolled horizontal");
+
+ fullZoomChangePromise.then(() => {
+ // When input event prioritization is enabled, the wheel event may be
+ // dispatched to the content process before the message 'FullZoom' to
+ // zoom in/out. Waiting for the event 'FullZoomChange' and then check
+ // the result.
+ if (!(currentTest.expected & (kNegative | kPositive))) {
+ is(SpecialPowers.getFullZoom(window), 1.0, description + "zoomed");
+ } else {
+ var isReverted = (currentTest.expected & kUseX) ? isXReverted :
+ (currentTest.expected & kUseY) ? isYReverted : false;
+ if ((!isReverted && (currentTest.expected & kNegative)) ||
+ (isReverted && (currentTest.expected & kPositive))) {
+ ok(SpecialPowers.getFullZoom(window) > 1.0,
+ description + "not zoomed in, got " + SpecialPowers.getFullZoom(window));
+ } else {
+ ok(SpecialPowers.getFullZoom(window) < 1.0,
+ description + "not zoomed out, got " + SpecialPowers.getFullZoom(window));
+ }
+ }
+ if (SpecialPowers.getFullZoom(window) != 1) {
+ // Only synthesizes key event to reset zoom when necessary to avoid
+ // triggering the next test before the key event is handled. In that
+ // case, the key event may break the next test.
+ synthesizeKey("0", { accelKey: true });
+ }
+ onZoomReset(function () {
+ hitEventLoop(doNextTest, 20);
+ });
+ });
+ });
+ }
+ doNextTest();
+}
+
+function doTestZoomedScroll(aCallback)
+{
+ var zoom = 1.0;
+ function setFullZoom(aWindow, aZoom)
+ {
+ zoom = aZoom;
+ SpecialPowers.setFullZoom(aWindow, aZoom);
+ }
+
+ function prepareTestZoomedPixelScroll()
+ {
+ // Reset zoom and store the scroll amount into the data.
+ synthesizeKey("0", { accelKey: true });
+ zoom = 1.0;
+ onZoomReset(testZoomedPixelScroll);
+ }
+
+ function testZoomedPixelScroll()
+ {
+ gScrollableElement.scrollTop = 1000;
+ gScrollableElement.scrollLeft = 1000;
+ // Ensure not to be in reflow.
+ hitEventLoop(function () {
+ function mousePixelScrollHandler(aEvent)
+ {
+ if (aEvent.axis == MouseScrollEvent.HORIZONTAL_AXIS) {
+ is(aEvent.detail, 16,
+ "doTestZoomedScroll: The detail of horizontal MozMousePixelScroll for pixel wheel event is wrong");
+ } else if (aEvent.axis == MouseScrollEvent.VERTICAL_AXIS) {
+ is(aEvent.detail, 16,
+ "doTestZoomedScroll: The detail of vertical MozMousePixelScroll for pixel wheel event is wrong");
+ } else {
+ ok(false, "doTestZoomedScroll: The axis of MozMousePixelScroll for pixel wheel event is invalid, got " + aEvent.axis);
+ }
+ }
+ function wheelHandler(aEvent)
+ {
+ is(aEvent.deltaX, 16.0 / zoom,
+ "doTestZoomedScroll: The deltaX of wheel for pixel is wrong");
+ is(aEvent.deltaY, 16.0 / zoom,
+ "doTestZoomedScroll: The deltaY of wheel for pixel is wrong");
+ }
+ window.addEventListener("MozMousePixelScroll", mousePixelScrollHandler, true);
+ window.addEventListener("wheel", wheelHandler, true);
+ var event = {
+ deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 16.0,
+ deltaY: 16.0,
+ lineOrPageDeltaX: 0,
+ lineOrPageDeltaY: 0
+ };
+ // wait scrolled actually.
+ sendWheelAndWait(10, 10, event, function () {
+ var scrolledX = gScrollableElement.scrollLeft;
+ var scrolledY = gScrollableElement.scrollTop;
+ ok(scrolledX > 1000,
+ "doTestZoomedScroll: scrolledX must be larger than 1000 for pixel wheel event, got " + scrolledX);
+ ok(scrolledY > 1000,
+ "doTestZoomedScroll: scrolledY must be larger than 1000 for pixel wheel event, got " + scrolledY);
+
+ // Zoom
+ setFullZoom(window, 2.0);
+ // Ensure not to be in reflow.
+ hitEventLoop(function () {
+ gScrollableElement.scrollTop = 1000;
+ gScrollableElement.scrollLeft = 1000;
+ var evt = {
+ deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 16.0,
+ deltaY: 16.0,
+ lineOrPageDeltaX: 0,
+ lineOrPageDeltaY: 0
+ };
+ // wait scrolled actually.
+ sendWheelAndWait(10, 10, evt, function () {
+ ok(Math.abs(gScrollableElement.scrollLeft - (1000 + (scrolledX - 1000) / 2)) <= 1,
+ "doTestZoomedScroll: zoomed horizontal scroll amount by pixel wheel event is different from normal, scrollLeft=" +
+ gScrollableElement.scrollLeft + ", scrolledX=" + scrolledX);
+ ok(Math.abs(gScrollableElement.scrollTop - (1000 + (scrolledY - 1000) / 2)) <= 1,
+ "doTestZoomedScroll: zoomed vertical scroll amount by pixel wheel event is different from normal, scrollTop=" +
+ gScrollableElement.scrollTop + ", scrolledY=" + scrolledY);
+ window.removeEventListener("MozMousePixelScroll", mousePixelScrollHandler, true);
+ window.removeEventListener("wheel", wheelHandler, true);
+
+ synthesizeKey("0", { accelKey: true });
+ onZoomReset(prepareTestZoomedLineScroll);
+ });
+ }, 20);
+ });
+ }, 20);
+ }
+
+ function prepareTestZoomedLineScroll()
+ {
+ // Reset zoom and store the scroll amount into the data.
+ synthesizeKey("0", { accelKey: true });
+ zoom = 1.0;
+ onZoomReset(testZoomedLineScroll);
+ }
+ function testZoomedLineScroll()
+ {
+ gScrollableElement.scrollTop = 1000;
+ gScrollableElement.scrollLeft = 1000;
+ // Ensure not to be in reflow.
+ hitEventLoop(function () {
+ var lineHeightX, lineHeightY;
+ function handler(aEvent)
+ {
+ if (aEvent.axis == MouseScrollEvent.HORIZONTAL_AXIS) {
+ if (lineHeightX == undefined) {
+ lineHeightX = aEvent.detail;
+ } else {
+ ok(Math.abs(aEvent.detail - lineHeightX) <= 1,
+ "doTestZoomedScroll: The detail of horizontal MozMousePixelScroll for line wheel event is wrong, aEvent.detail=" +
+ aEvent.detail + ", lineHeightX=" + lineHeightX);
+ }
+ } else if (aEvent.axis == MouseScrollEvent.VERTICAL_AXIS) {
+ if (lineHeightY == undefined) {
+ lineHeightY = aEvent.detail;
+ } else {
+ ok(Math.abs(aEvent.detail - lineHeightY) <= 1,
+ "doTestZoomedScroll: The detail of vertical MozMousePixelScroll for line wheel event is wrong, aEvent.detail=" +
+ aEvent.detail + ", lineHeightY=" + lineHeightY);
+ }
+ } else {
+ ok(false, "doTestZoomedScroll: The axis of MozMousePixelScroll for line wheel event is invalid, got " + aEvent.axis);
+ }
+ }
+ window.addEventListener("MozMousePixelScroll", handler, true);
+ var event = {
+ deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 1.0,
+ deltaY: 1.0,
+ lineOrPageDeltaX: 1,
+ lineOrPageDeltaY: 1
+ };
+ // wait scrolled actually.
+ sendWheelAndWait(10, 10, event, function () {
+ var scrolledX = gScrollableElement.scrollLeft;
+ var scrolledY = gScrollableElement.scrollTop;
+ ok(scrolledX > 1000,
+ "doTestZoomedScroll: scrolledX must be larger than 1000 for line wheel event, got " + scrolledX);
+ ok(scrolledY > 1000,
+ "doTestZoomedScroll: scrolledY must be larger than 1000 for line wheel event, got " + scrolledY);
+
+ // Zoom
+ setFullZoom(window, 2.0);
+ // Ensure not to be in reflow.
+ hitEventLoop(function () {
+ gScrollableElement.scrollTop = 1000;
+ gScrollableElement.scrollLeft = 1000;
+ var evt = {
+ deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 1.0,
+ deltaY: 1.0,
+ lineOrPageDeltaX: 1,
+ lineOrPageDeltaY: 1
+ };
+ // wait scrolled actually.
+ sendWheelAndWait(10, 10, evt, function () {
+ ok(Math.abs(gScrollableElement.scrollLeft - scrolledX) <= 1,
+ "doTestZoomedScroll: zoomed horizontal scroll amount by line wheel event is different from normal, scrollLeft=" +
+ gScrollableElement.scrollLeft + ", scrolledX=" + scrolledX);
+ ok(Math.abs(gScrollableElement.scrollTop - scrolledY) <= 1,
+ "doTestZoomedScroll: zoomed vertical scroll amount by line wheel event is different from normal, scrollTop=" +
+ gScrollableElement.scrollTop + ", scrolledY=" + scrolledY);
+
+ window.removeEventListener("MozMousePixelScroll", handler, true);
+
+ synthesizeKey("0", { accelKey: true });
+ onZoomReset(aCallback);
+ });
+ }, 20);
+ });
+ }, 20);
+ }
+
+ // XXX It's too difficult to test page scroll because the page scroll amount
+ // is computed by complex logic.
+
+ prepareTestZoomedPixelScroll();
+}
+
+function doTestWholeScroll(aCallback)
+{
+ SpecialPowers.pushPrefEnv({"set": [
+ ["mousewheel.default.delta_multiplier_x", 999999],
+ ["mousewheel.default.delta_multiplier_y", 999999]]},
+ function() { doTestWholeScroll2(aCallback); });
+}
+
+function doTestWholeScroll2(aCallback)
+{
+ const kTests = [
+ { description: "try whole-scroll to top (line)",
+ prepare () {
+ gScrollableElement.scrollTop = 1000;
+ gScrollableElement.scrollLeft = 1000;
+ },
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: -1.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: -1 },
+ expectedScrollTop: 0,
+ expectedScrollLeft: 1000
+ },
+ { description: "try whole-scroll to top when scrollTop is already top-most (line)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: -1.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: -1 },
+ expectedScrollTop: 0,
+ expectedScrollLeft: 1000
+ },
+ { description: "try whole-scroll to bottom (line)",
+ prepare () {
+ gScrollableElement.scrollTop = 1000;
+ gScrollableElement.scrollLeft = 1000;
+ },
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.0, deltaY: 1.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1 },
+ expectedScrollTop: gScrollableElement.scrollTopMax,
+ expectedScrollLeft: 1000
+ },
+ { description: "try whole-scroll to bottom when scrollTop is already bottom-most (line)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0, deltaY: 1.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1 },
+ expectedScrollTop: gScrollableElement.scrollTopMax,
+ expectedScrollLeft: 1000
+ },
+ { description: "try whole-scroll to left (line)",
+ prepare () {
+ gScrollableElement.scrollTop = 1000;
+ gScrollableElement.scrollLeft = 1000;
+ },
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: -1.0, deltaY: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: 0 },
+ expectedScrollTop: 1000,
+ expectedScrollLeft: 0
+ },
+ { description: "try whole-scroll to left when scrollLeft is already left-most (line)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: -1.0, deltaY: 0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: 0 },
+ expectedScrollTop: 1000,
+ expectedScrollLeft: 0
+ },
+ { description: "try whole-scroll to right (line)",
+ prepare () {
+ gScrollableElement.scrollTop = 1000;
+ gScrollableElement.scrollLeft = 1000;
+ },
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 1.0, deltaY: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 0 },
+ expectedScrollTop: 1000,
+ expectedScrollLeft: gScrollableElement.scrollLeftMax
+ },
+ { description: "try whole-scroll to right when scrollLeft is already right-most (line)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 1.0, deltaY: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 0 },
+ expectedScrollTop: 1000,
+ expectedScrollLeft: gScrollableElement.scrollLeftMax
+ },
+
+
+ { description: "try whole-scroll to top (pixel)",
+ prepare () {
+ gScrollableElement.scrollTop = 1000;
+ gScrollableElement.scrollLeft = 1000;
+ },
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: -1.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0 },
+ expectedScrollTop: 0,
+ expectedScrollLeft: 1000
+ },
+ { description: "try whole-scroll to top when scrollTop is already top-most (pixel)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: -1.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0 },
+ expectedScrollTop: 0,
+ expectedScrollLeft: 1000
+ },
+ { description: "try whole-scroll to bottom (pixel)",
+ prepare () {
+ gScrollableElement.scrollTop = 1000;
+ gScrollableElement.scrollLeft = 1000;
+ },
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0.0, deltaY: 1.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0 },
+ expectedScrollTop: gScrollableElement.scrollTopMax,
+ expectedScrollLeft: 1000
+ },
+ { description: "try whole-scroll to bottom when scrollTop is already bottom-most (pixel)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 0, deltaY: 1.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0 },
+ expectedScrollTop: gScrollableElement.scrollTopMax,
+ expectedScrollLeft: 1000
+ },
+ { description: "try whole-scroll to left (pixel)",
+ prepare () {
+ gScrollableElement.scrollTop = 1000;
+ gScrollableElement.scrollLeft = 1000;
+ },
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -1.0, deltaY: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0 },
+ expectedScrollTop: 1000,
+ expectedScrollLeft: 0
+ },
+ { description: "try whole-scroll to left when scrollLeft is already left-most (pixel)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: -1.0, deltaY: 0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0 },
+ expectedScrollTop: 1000,
+ expectedScrollLeft: 0
+ },
+ { description: "try whole-scroll to right (pixel)",
+ prepare () {
+ gScrollableElement.scrollTop = 1000;
+ gScrollableElement.scrollLeft = 1000;
+ },
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 1.0, deltaY: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0 },
+ expectedScrollTop: 1000,
+ expectedScrollLeft: gScrollableElement.scrollLeftMax
+ },
+ { description: "try whole-scroll to right when scrollLeft is already right-most (pixel)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PIXEL,
+ deltaX: 1.0, deltaY: 0.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 0 },
+ expectedScrollTop: 1000,
+ expectedScrollLeft: gScrollableElement.scrollLeftMax
+ },
+
+
+ { description: "try whole-scroll to top (page)",
+ prepare () {
+ gScrollableElement.scrollTop = 1000;
+ gScrollableElement.scrollLeft = 1000;
+ },
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: -1.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: -1 },
+ expectedScrollTop: 0,
+ expectedScrollLeft: 1000
+ },
+ { description: "try whole-scroll to top when scrollTop is already top-most (page)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: -1.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: -1 },
+ expectedScrollTop: 0,
+ expectedScrollLeft: 1000
+ },
+ { description: "try whole-scroll to bottom (page)",
+ prepare () {
+ gScrollableElement.scrollTop = 1000;
+ gScrollableElement.scrollLeft = 1000;
+ },
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0.0, deltaY: 1.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1 },
+ expectedScrollTop: gScrollableElement.scrollTopMax,
+ expectedScrollLeft: 1000
+ },
+ { description: "try whole-scroll to bottom when scrollTop is already bottom-most (page)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 0, deltaY: 1.0,
+ lineOrPageDeltaX: 0, lineOrPageDeltaY: 1 },
+ expectedScrollTop: gScrollableElement.scrollTopMax,
+ expectedScrollLeft: 1000
+ },
+ { description: "try whole-scroll to left (page)",
+ prepare () {
+ gScrollableElement.scrollTop = 1000;
+ gScrollableElement.scrollLeft = 1000;
+ },
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: -1.0, deltaY: 0.0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: 0 },
+ expectedScrollTop: 1000,
+ expectedScrollLeft: 0
+ },
+ { description: "try whole-scroll to left when scrollLeft is already left-most (page)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: -1.0, deltaY: 0,
+ lineOrPageDeltaX: -1, lineOrPageDeltaY: 0 },
+ expectedScrollTop: 1000,
+ expectedScrollLeft: 0
+ },
+ { description: "try whole-scroll to right (page)",
+ prepare () {
+ gScrollableElement.scrollTop = 1000;
+ gScrollableElement.scrollLeft = 1000;
+ },
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 1.0, deltaY: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 0 },
+ expectedScrollTop: 1000,
+ expectedScrollLeft: gScrollableElement.scrollLeftMax
+ },
+ { description: "try whole-scroll to right when scrollLeft is already right-most (page)",
+ event: { deltaMode: WheelEvent.DOM_DELTA_PAGE,
+ deltaX: 1.0, deltaY: 0.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 0 },
+ expectedScrollTop: 1000,
+ expectedScrollLeft: gScrollableElement.scrollLeftMax
+ },
+ ];
+
+ var index = 0;
+
+ function doIt()
+ {
+ const kTest = kTests[index];
+ if (kTest.prepare) {
+ kTest.prepare();
+ }
+ sendWheelAndWait(10, 10, kTest.event, function () {
+ is(gScrollableElement.scrollTop, kTest.expectedScrollTop,
+ "doTestWholeScroll, " + kTest.description + ": unexpected scrollTop");
+ is(gScrollableElement.scrollLeft, kTest.expectedScrollLeft,
+ "doTestWholeScroll, " + kTest.description + ": unexpected scrollLeft");
+ if (++index == kTests.length) {
+ SimpleTest.executeSoon(aCallback);
+ } else {
+ doIt();
+ }
+ });
+ }
+ doIt();
+}
+
+function doTestActionOverride(aCallback)
+{
+ const kNoScroll = 0x00;
+ const kScrollUp = 0x01;
+ const kScrollDown = 0x02;
+ const kScrollLeft = 0x04;
+ const kScrollRight = 0x08;
+
+ const kTests = [
+ { action: kDefaultActionScroll, override_x: kDefaultActionOverrideXNoOverride,
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 1.0, deltaY: 1.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
+ expected: kScrollDown | kScrollRight
+ },
+ { action: kDefaultActionScroll, override_x: kDefaultActionOverrideXNone,
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 1.0, deltaY: 1.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
+ expected: kScrollDown | kScrollRight
+ },
+ { action: kDefaultActionScroll, override_x: kDefaultActionOverrideXScroll,
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 1.0, deltaY: 1.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
+ expected: kScrollDown | kScrollRight
+ },
+ { action: kDefaultActionNone, override_x: kDefaultActionOverrideXNoOverride,
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 1.0, deltaY: 1.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
+ expected: kNoScroll
+ },
+ { action: kDefaultActionNone, override_x: kDefaultActionOverrideXNone,
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 1.0, deltaY: 1.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
+ expected: kNoScroll
+ },
+ { action: kDefaultActionNone, override_x: kDefaultActionOverrideXScroll,
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 1.0, deltaY: 1.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
+ expected: kNoScroll
+ },
+ { action: kDefaultActionScroll, override_x: kDefaultActionOverrideXNoOverride,
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 1.0, deltaY: 0.5,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
+ expected: kScrollDown | kScrollRight
+ },
+ { action: kDefaultActionScroll, override_x: kDefaultActionOverrideXNone,
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 1.0, deltaY: 0.5,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
+ expected: kNoScroll
+ },
+ { action: kDefaultActionScroll, override_x: kDefaultActionOverrideXScroll,
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 1.0, deltaY: 0.5,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
+ expected: kScrollDown | kScrollRight
+ },
+ { action: kDefaultActionNone, override_x: kDefaultActionOverrideXNoOverride,
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 1.0, deltaY: 0.5,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
+ expected: kNoScroll
+ },
+ { action: kDefaultActionNone, override_x: kDefaultActionOverrideXNone,
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 1.0, deltaY: 0.5,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
+ expected: kNoScroll
+ },
+ { action: kDefaultActionNone, override_x: kDefaultActionOverrideXScroll,
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 1.0, deltaY: 0.5,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
+ expected: kScrollDown | kScrollRight
+ },
+ { action: kDefaultActionScroll, override_x: kDefaultActionOverrideXNoOverride,
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.5, deltaY: 1.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
+ expected: kScrollDown | kScrollRight
+ },
+ { action: kDefaultActionScroll, override_x: kDefaultActionOverrideXNone,
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.5, deltaY: 1.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
+ expected: kScrollDown | kScrollRight
+ },
+ { action: kDefaultActionScroll, override_x: kDefaultActionOverrideXScroll,
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.5, deltaY: 1.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
+ expected: kScrollDown | kScrollRight
+ },
+ { action: kDefaultActionNone, override_x: kDefaultActionOverrideXNoOverride,
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.5, deltaY: 1.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
+ expected: kNoScroll
+ },
+ { action: kDefaultActionNone, override_x: kDefaultActionOverrideXNone,
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.5, deltaY: 1.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
+ expected: kNoScroll
+ },
+ { action: kDefaultActionNone, override_x: kDefaultActionOverrideXScroll,
+ event: { deltaMode: WheelEvent.DOM_DELTA_LINE,
+ deltaX: 0.5, deltaY: 1.0,
+ lineOrPageDeltaX: 1, lineOrPageDeltaY: 1 },
+ expected: kNoScroll
+ },
+ ];
+
+ var index = 0;
+
+ function doIt()
+ {
+ const kTest = kTests[index];
+ SpecialPowers.pushPrefEnv({"set": [
+ ["mousewheel.default.action", kTest.action],
+ ["mousewheel.default.action.override_x", kTest.override_x]]},
+ doIt2
+ );
+ }
+
+ function doIt2()
+ {
+ const kTest = kTests[index];
+ description = "doTestActionOverride(action=" + kTest.action + ", " +
+ "override_x=" + kTest.override_x + ", " +
+ "deltaX=" + kTest.event.deltaX + ", " +
+ "deltaY=" + kTest.event.deltaY + "): ";
+ gScrollableElement.scrollTop = 1000;
+ gScrollableElement.scrollLeft = 1000;
+ sendWheelAndWait(10, 10, kTest.event, function () {
+ if (kTest.expected & kScrollUp) {
+ ok(gScrollableElement.scrollTop < 1000, description + "not scrolled up, got " + gScrollableElement.scrollTop);
+ } else if (kTest.expected & kScrollDown) {
+ ok(gScrollableElement.scrollTop > 1000, description + "not scrolled down, got " + gScrollableElement.scrollTop);
+ } else {
+ is(gScrollableElement.scrollTop, 1000, description + "scrolled vertical");
+ }
+ if (kTest.expected & kScrollLeft) {
+ ok(gScrollableElement.scrollLeft < 1000, description + "not scrolled to left, got " + gScrollableElement.scrollLeft);
+ } else if (kTest.expected & kScrollRight) {
+ ok(gScrollableElement.scrollLeft > 1000, description + "not scrolled to right, got " + gScrollableElement.scrollLeft);
+ } else {
+ is(gScrollableElement.scrollLeft, 1000, description + "scrolled horizontal");
+ }
+ if (++index == kTests.length) {
+ SimpleTest.executeSoon(aCallback);
+ } else {
+ doIt();
+ }
+ });
+ }
+ doIt();
+}
+
+function runTests()
+{
+ SpecialPowers.pushPrefEnv({"set": [
+ ["test.events.async.enabled", true],
+ ["general.smoothScroll", false],
+ ["mousewheel.default.action", kDefaultActionScroll],
+ ["mousewheel.default.action.override_x", kDefaultActionOverrideXNoOverride],
+ ["mousewheel.with_shift.action", kDefaultActionHorizontalizedScroll],
+ ["mousewheel.with_shift.action.override_x", kDefaultActionOverrideXNoOverride],
+ ["mousewheel.with_control.action", kDefaultActionZoom],
+ ["mousewheel.with_control.action.override_x", kDefaultActionOverrideXNoOverride],
+ ["mousewheel.with_alt.action", kDefaultActionHistory],
+ ["mousewheel.with_alt.action.override_x", kDefaultActionOverrideXNoOverride]]},
+ runTests2);
+}
+
+function runTests2()
+{
+ const kSettings = [
+ { description: "all delta values are not customized",
+ deltaMultiplierX: 1.0, deltaMultiplierY: 1.0, deltaMultiplierZ: 1.0 },
+ { description: "deltaX is reverted",
+ deltaMultiplierX: -1.0, deltaMultiplierY: 1.0, deltaMultiplierZ: 1.0 },
+ { description: "deltaY is reverted",
+ deltaMultiplierX: 1.0, deltaMultiplierY: -1.0, deltaMultiplierZ: 1.0 },
+ // Unless you really don't care a snap on time-consuming testing or a strict
+ // criteria is required for testing, it is strongly recommeneded that you
+ // comment the unrealistic case out.
+ //{ description: "deltaZ is reverted",
+ // deltaMultiplierX: 1.0, deltaMultiplierY: 1.0, deltaMultiplierZ: -1.0 },*/
+ { description: "deltaX is 2.0",
+ deltaMultiplierX: 2.0, deltaMultiplierY: 1.0, deltaMultiplierZ: 1.0 },
+ { description: "deltaY is 2.0",
+ deltaMultiplierX: 1.0, deltaMultiplierY: 2.0, deltaMultiplierZ: 1.0 },
+ // Unless you really don't care a snap on time-consuming testing or a strict
+ // criteria is required for testing, it is strongly recommeneded that you
+ // comment the unrealistic case out.
+ //{ description: "deltaZ is 2.0",
+ // deltaMultiplierX: 1.0, deltaMultiplierY: 1.0, deltaMultiplierZ: 2.0 },
+ //{ description: "deltaX is -2.0",
+ // deltaMultiplierX: -2.0, deltaMultiplierY: 1.0, deltaMultiplierZ: 1.0 },
+ //{ description: "deltaY is -2.0",
+ // deltaMultiplierX: 1.0, deltaMultiplierY: -2.0, deltaMultiplierZ: 1.0 },
+ //{ description: "deltaZ is -2.0",
+ // deltaMultiplierX: 1.0, deltaMultiplierY: 1.0, deltaMultiplierZ: -2.0 },
+ ];
+
+ var index = 0;
+
+ function doTest() {
+ setDeltaMultiplierSettings(kSettings[index], function () {
+ doTestScroll(kSettings[index], function () {
+ doTestAutoDirScroll(kSettings[index], {honoursRoot: false}, function () {
+ doTestAutoDirScroll(kSettings[index], {honoursRoot: true}, function () {
+ doTestHorizontalizedScroll(kSettings[index], function() {
+ doTestZoom(kSettings[index], function() {
+ if (++index == kSettings.length) {
+ setDeltaMultiplierSettings(kSettings[0], function() {
+ doTestZoomedScroll(function() {
+ doTestWholeScroll(function() {
+ doTestActionOverride(function() {
+ finishTests();
+ });
+ });
+ });
+ });
+ } else {
+ doTest();
+ }
+ });
+ });
+ });
+ });
+ });
+ });
+ }
+ doTest();
+}
+
+function finishTests()
+{
+ winUtils.restoreNormalRefresh();
+
+ window.opener.finish();
+}
+
+</script>
+</pre>
+</body>
+</html>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-12 12:36:18 +0000