зеркало из https://github.com/mozilla/gecko-dev.git
194 строки
6.8 KiB
HTML
194 строки
6.8 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=574663
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-->
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<head>
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<title>Test for Bug 574663</title>
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<script src="/tests/SimpleTest/SimpleTest.js"></script>
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<script src="/tests/SimpleTest/EventUtils.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
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</head>
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<body>
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=574663">Mozilla Bug 574663</a>
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<p id="display"></p>
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<div id="content" style="display: none">
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</div>
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<pre id="test">
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<script type="application/javascript">
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/** Test for Bug 574663 **/
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// SimpleTest's paint_listener does not work on other windows, so we inline
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// a smaller version here.
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function waitForPaint(win, utils, callback) {
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win.document.documentElement.getBoundingClientRect();
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if (!utils.isMozAfterPaintPending) {
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win.requestAnimationFrame(function() {
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setTimeout(callback);
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});
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return;
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}
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var onpaint = function() {
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if (!utils.isMozAfterPaintPending) {
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win.removeEventListener("MozAfterPaint", onpaint);
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callback();
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return;
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}
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if (utils.isTestControllingRefreshes) {
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utils.advanceTimeAndRefresh(0);
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}
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}
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win.addEventListener("MozAfterPaint", onpaint);
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if (utils.isTestControllingRefreshes) {
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utils.advanceTimeAndRefresh(0);
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}
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}
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// This is a magic number representing how many device pixels we are attempting to
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// scroll or zoom. We use it for sending the wheel events, but we don't actually
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// check that we have scrolled by that amount.
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var kDelta = 3;
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function sendTouchpadScrollMotion(scrollbox, direction, ctrl, momentum, callback) {
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var win = scrollbox.ownerDocument.defaultView;
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let winUtils = SpecialPowers.getDOMWindowUtils(win);
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let event = {
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deltaMode: WheelEvent.DOM_DELTA_PIXEL,
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deltaY: direction * kDelta,
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lineOrPageDeltaY: direction,
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ctrlKey: ctrl,
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isMomentum: momentum
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};
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// Construct a promise that will resolve when either scroll or zoom has changed.
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// --- Intermittent Warning ---
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// Two wheel events are sent, but our promise resolves when any change has been
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// made to scroll or zoom. That makes it possible that the effect of the second
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// event may not yet be applied when the promise resolves. This shouldn't lead
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// to any errors, since the two wheel events are moving in the same direction,
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// and our later checks will only ensure that the value has changed from its
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// initial value. This was done intentionally, because attempting to wait after
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// both events yields problems when the second event has no effect, which does
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// happen in testing. It's not clear why this is happening. Since the testing
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// pattern is scroll (twice), then scroll back (twice), it's possible that the
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// first scroll back event is sufficient to return the scrollbox to its minimal
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// scrollTop position, and so the second event doesn't scroll any further.
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const initialZoom = winUtils.fullZoom;
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const initialScroll = scrollbox.scrollTop;
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const effectOfWheelEvent = SimpleTest.promiseWaitForCondition(() => {
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return ((winUtils.fullZoom != initialZoom) || (scrollbox.scrollTop != initialScroll));
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}, "Mouse wheel should have caused us to either zoom or scroll.");
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synthesizeWheel(scrollbox, 10, 10, event, win);
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// then additional pixel scroll
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event.lineOrPageDeltaY = 0;
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synthesizeWheel(scrollbox, 10, 10, event, win);
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effectOfWheelEvent.then(callback);
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}
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function runTest() {
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var win = open('bug574663.html', '_blank', 'width=300,height=300');
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let winUtils = SpecialPowers.getDOMWindowUtils(win);
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let waitUntilPainted = function(callback) {
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// Until the first non-blank paint, the parent will set the opacity of our
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// browser to 0 using the 'blank' attribute.
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// Until the blank attribute is removed, we can't send scroll events.
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SimpleTest.waitForFocus(function() {
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/* eslint-disable no-shadow */
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let chromeScript = SpecialPowers.loadChromeScript(_ => {
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const {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
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let win = Services.wm.getMostRecentWindow("navigator:browser");
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win.requestAnimationFrame(() => {
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win.gBrowser.selectedBrowser.removeAttribute("blank");
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win.requestAnimationFrame(() => {
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sendAsyncMessage("blank-attribute-removed");
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});
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});
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});
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/* eslint-enable no-shadow */
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chromeScript.promiseOneMessage("blank-attribute-removed").then(() => {
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chromeScript.destroy();
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waitForPaint(win, winUtils, callback);
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});
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}, win);
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};
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waitUntilPainted(function () {
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var scrollbox = win.document.getElementById("scrollbox");
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let outstandingTests = [
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[false, false],
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[false, true],
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[true, false],
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[true, true],
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];
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// grab the refresh driver, since we want to make sure
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// async scrolls happen in deterministic time
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winUtils.advanceTimeAndRefresh(1000);
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function nextTest() {
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let [ctrlKey, isMomentum] = outstandingTests.shift();
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let scrollTopBefore = scrollbox.scrollTop;
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let zoomFactorBefore = winUtils.fullZoom;
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let check = function() {
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if (!ctrlKey) {
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let postfix = isMomentum ? ", even after releasing the touchpad" : "";
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// Normal scroll: scroll
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is(winUtils.fullZoom, zoomFactorBefore, "Normal scrolling shouldn't change zoom" + postfix);
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isnot(scrollbox.scrollTop, scrollTopBefore,
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"Normal scrolling should scroll" + postfix);
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} else {
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if (!isMomentum) {
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isnot(winUtils.fullZoom, zoomFactorBefore, "Ctrl-scrolling should zoom while the user is touching the touchpad");
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is(scrollbox.scrollTop, scrollTopBefore, "Ctrl-scrolling shouldn't scroll while the user is touching the touchpad");
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} else {
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is(winUtils.fullZoom, zoomFactorBefore, "Momentum scrolling shouldn't zoom, even when pressing Ctrl");
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isnot(scrollbox.scrollTop, scrollTopBefore,
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"Momentum scrolling should scroll, even when pressing Ctrl");
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}
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}
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if (!outstandingTests.length) {
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winUtils.restoreNormalRefresh();
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win.close();
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SimpleTest.finish();
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return;
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}
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// Revert the effect for the next test.
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sendTouchpadScrollMotion(scrollbox, -1, ctrlKey, isMomentum, function() {
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setTimeout(nextTest, 0);
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});
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}
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sendTouchpadScrollMotion(scrollbox, 1, ctrlKey, isMomentum, check);
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}
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nextTest();
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});
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}
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window.onload = function() {
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SpecialPowers.pushPrefEnv({
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"set":[["general.smoothScroll", false],
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["mousewheel.acceleration.start", -1],
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["mousewheel.system_scroll_override_on_root_content.enabled", false],
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["mousewheel.with_control.action", 3]]}, runTest);
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}
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SimpleTest.waitForExplicitFinish();
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</script>
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</pre>
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</body>
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</html>
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