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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /gfx/layers/apz/test/mochitest/helper_bug982141.html
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=982141
+-->
+<head>
+ <meta charset="utf-8">
+ <meta name="viewport" content="user-scalable=no">
+ <title>Test for Bug 982141, helper page</title>
+ <script type="application/javascript" src="apz_test_utils.js"></script>
+ <script type="application/javascript">
+
+ // -------------------------------------------------------------------
+ // Infrastructure to get the test assertions to run at the right time.
+ // -------------------------------------------------------------------
+ var SimpleTest = window.opener.SimpleTest;
+
+ window.onload = function() {
+ window.addEventListener("MozAfterPaint", afterPaint, false);
+ };
+ var utils = SpecialPowers.getDOMWindowUtils(window);
+ function afterPaint(e) {
+ // If there is another paint pending, wait for it.
+ if (utils.isMozAfterPaintPending) {
+ return;
+ }
+
+ // Once there are no more paints pending, remove the
+ // MozAfterPaint listener and run the test logic.
+ window.removeEventListener("MozAfterPaint", afterPaint, false);
+ testBug982141();
+ }
+
+ // --------------------------------------------------------------------
+ // The actual logic for testing bug 982141.
+ //
+ // In this test we have a simple page with a scrollable <div> which has
+ // enough content to make it scrollable. We test that this <div> got
+ // a displayport.
+ // --------------------------------------------------------------------
+
+ function testBug982141() {
+ // Get the content- and compositor-side test data from nsIDOMWindowUtils.
+ var contentTestData = utils.getContentAPZTestData();
+ var compositorTestData = utils.getCompositorAPZTestData();
+
+ // Get the sequence number of the last paint on the compositor side.
+ // We do this before converting the APZ test data because the conversion
+ // loses the order of the paints.
+ SimpleTest.ok(compositorTestData.paints.length > 0,
+ "expected at least one paint in compositor test data");
+ var lastCompositorPaint = compositorTestData.paints[compositorTestData.paints.length - 1];
+ var lastCompositorPaintSeqNo = lastCompositorPaint.sequenceNumber;
+
+ // Convert the test data into a representation that's easier to navigate.
+ contentTestData = convertTestData(contentTestData);
+ compositorTestData = convertTestData(compositorTestData);
+
+ // Reconstruct the APZC tree structure in the last paint.
+ var apzcTree = buildApzcTree(compositorTestData.paints[lastCompositorPaintSeqNo]);
+
+ // The apzc tree for this page should consist of a single child APZC on
+ // the RCD node (the child is for scrollable <div>). Note that in e10s/B2G
+ // cases the RCD will be the root of the tree but on Fennec it will not.
+ var rcd = findRcdNode(apzcTree);
+ SimpleTest.ok(rcd != null, "found the RCD node");
+ SimpleTest.is(rcd.children.length, 1, "expected a single child APZC");
+ var childScrollId = rcd.children[0].scrollId;
+
+ // We should have content-side data for the same paint.
+ SimpleTest.ok(lastCompositorPaintSeqNo in contentTestData.paints,
+ "expected a content paint with sequence number" + lastCompositorPaintSeqNo);
+ var correspondingContentPaint = contentTestData.paints[lastCompositorPaintSeqNo];
+
+ var dp = getPropertyAsRect(correspondingContentPaint, childScrollId, 'displayport');
+ var subframe = document.getElementById('subframe');
+ // The clientWidth and clientHeight may be less than 50 if there are scrollbars showing.
+ // In general they will be (50 - <scrollbarwidth>, 50 - <scrollbarheight>).
+ SimpleTest.ok(subframe.clientWidth > 0, "Expected a non-zero clientWidth, got: " + subframe.clientWidth);
+ SimpleTest.ok(subframe.clientHeight > 0, "Expected a non-zero clientHeight, got: " + subframe.clientHeight);
+ SimpleTest.ok(dp.w >= subframe.clientWidth && dp.h >= subframe.clientHeight,
+ "expected a displayport at least as large as the scrollable element, got " + JSON.stringify(dp));
+
+ window.opener.finishTest();
+ }
+ </script>
+</head>
+<body style="overflow: hidden;"><!-- This combined with the user-scalable=no ensures the root frame is not scrollable -->
+ <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=982141">Mozilla Bug 982141</a>
+ <!-- A scrollable subframe, with enough content to make it have a nonzero scroll range -->
+ <div id="subframe" style="height: 50px; width: 50px; overflow: scroll">
+ <div style="width: 100px">
+ Wide content so that the vertical scrollbar for the parent div
+ doesn't eat into the 50px width and reduce the width of the
+ displayport.
+ </div>
+ Line 1<br>
+ Line 2<br>
+ Line 3<br>
+ Line 4<br>
+ Line 5<br>
+ Line 6<br>
+ Line 7<br>
+ Line 8<br>
+ Line 9<br>
+ Line 10<br>
+ Line 11<br>
+ Line 12<br>
+ Line 13<br>
+ Line 14<br>
+ Line 15<br>
+ Line 16<br>
+ Line 17<br>
+ Line 18<br>
+ Line 19<br>
+ Line 20<br>
+ Line 21<br>
+ Line 22<br>
+ Line 23<br>
+ Line 24<br>
+ Line 25<br>
+ Line 26<br>
+ Line 27<br>
+ Line 28<br>
+ Line 29<br>
+ Line 30<br>
+ Line 31<br>
+ Line 32<br>
+ Line 33<br>
+ Line 34<br>
+ Line 35<br>
+ Line 36<br>
+ Line 37<br>
+ Line 38<br>
+ Line 39<br>
+ Line 40<br>
+ Line 41<br>
+ Line 42<br>
+ Line 43<br>
+ Line 44<br>
+ Line 45<br>
+ Line 46<br>
+ Line 40<br>
+ Line 48<br>
+ Line 49<br>
+ Line 50<br>
+ </div>
+</body>
+</html>