зеркало из https://github.com/mozilla/gecko-dev.git
Bug 469613 - Page scrolling by clicking the scrollbar track can get stuck if the page is very long, r+sr=roc
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7f0c899569
Коммит
e57134dd74
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@ -65,6 +65,7 @@ _TEST_FILES = test_bug288789.html \
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test_bug448860.html \
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test_bug460532.html \
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test_bug468167.html \
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test_bug469613.xul \
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test_character_movement.html \
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test_word_movement.html \
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test_backspace_delete.html \
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@ -0,0 +1,59 @@
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<?xml version="1.0"?>
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<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
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<?xml-stylesheet href="/tests/SimpleTest/test.css" type="text/css"?>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=469613
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-->
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<window title="Mozilla Bug 469613"
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xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
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<title>Test for Bug 469613</title>
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<script type="application/javascript" src="/MochiKit/packed.js" />
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<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"/>
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<script type="application/javascript" src="/tests/SimpleTest/EventUtils.js"/>
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<body xmlns="http://www.w3.org/1999/xhtml">
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=469613">Mozilla Bug 469613</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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</body>
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<vbox style="height: 100px; overflow: auto;" id="scrollbox">
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<hbox style="height: 120px;"/>
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</vbox>
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<script class="testbody" type="application/javascript;version=1.7"><![CDATA[
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/** Test for Bug 469613 **/
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function doTest() {
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netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
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let scrollbox = document.getElementById("scrollbox");
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scrollbox.scrollTop = 0;
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// Make sure that the "scroll focus" is inside the scrollbox by moving the
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// mouse in the scrollbox.
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synthesizeMouse(scrollbox, 6, 6, { type: "mousemove" });
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synthesizeMouse(scrollbox, 8, 8, { type: "mousemove" });
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// Now scroll 10px down.
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synthesizeMouseScroll(scrollbox, 10, 10, {axis:"vertical", delta:10, type:"MozMousePixelScroll"});
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// Send a 0-delta scroll.
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synthesizeMouseScroll(scrollbox, 10, 10, {axis:"vertical", delta:0, type:"MozMousePixelScroll"});
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setTimeout(function() {
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// Check if the 10px were scrolled.
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is(scrollbox.scrollTop, 10, "Starting a 0-delta scroll shouldn't cancel a pending async scroll.")
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SimpleTest.finish();
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}, 0);
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}
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SimpleTest.waitForExplicitFinish();
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addLoadEvent(doTest);
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]]></script>
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</window>
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@ -243,9 +243,12 @@ static nsresult ClampScrollValues(nscoord& aX, nscoord& aY, nsScrollPortView* aT
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NS_IMETHODIMP nsScrollPortView::ScrollTo(nscoord aDestinationX, nscoord aDestinationY,
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PRUint32 aUpdateFlags)
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{
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// do nothing if the we aren't scrolling.
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if (aDestinationX == mDestinationX && aDestinationY == mDestinationY) {
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// kill any in-progress smooth scroll
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// Do nothing if the target scroll position hasn't changed.
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if (aDestinationX == mDestinationX && aDestinationY == mDestinationY)
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return NS_OK;
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if (aDestinationX == mOffsetX && aDestinationY == mOffsetY) {
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// Kill any in-progress async scroll.
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delete mAsyncScroll;
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mAsyncScroll = nsnull;
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return NS_OK;
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