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Diffstat (limited to 'gfx/layers/apz/test/mochitest/helper_bug982141.html')
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diff --git a/gfx/layers/apz/test/mochitest/helper_bug982141.html b/gfx/layers/apz/test/mochitest/helper_bug982141.html new file mode 100644 index 000000000..5d2f15397 --- /dev/null +++ b/gfx/layers/apz/test/mochitest/helper_bug982141.html @@ -0,0 +1,149 @@ +<!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> |