1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/docshell/test/chrome/bug321671_window.xul Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,139 @@
1.4 +<?xml version="1.0"?>
1.5 +<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
1.6 +
1.7 +<window id="321671Test"
1.8 + xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
1.9 + width="600"
1.10 + height="600"
1.11 + onload="setTimeout(nextTest,0);"
1.12 + title="bug 321671 test">
1.13 +
1.14 + <script type="text/javascript"
1.15 + src="chrome://mochikit/content/tests/SimpleTest/specialpowersAPI.js"/>
1.16 + <script type="text/javascript"
1.17 + src="chrome://mochikit/content/tests/SimpleTest/SpecialPowersObserverAPI.js"/>
1.18 + <script type="text/javascript"
1.19 + src="chrome://mochikit/content/tests/SimpleTest/ChromePowers.js"/>
1.20 + <script type="application/javascript" src= "chrome://mochikit/content/chrome-harness.js" />
1.21 + <script type="application/javascript" src="docshell_helpers.js" />
1.22 + <script type="application/javascript"><![CDATA[
1.23 +
1.24 + // Define the generator-iterator for the tests.
1.25 + var tests = testIterator();
1.26 +
1.27 + // Maximum number of entries in the bfcache for this session history.
1.28 + // This number is hardcoded in docshell code. In the test, we'll
1.29 + // navigate through enough pages so that we hit one that's been
1.30 + // evicted from the bfcache because it's farther from the current
1.31 + // page than this number.
1.32 + const MAX_BFCACHE_PAGES = 3;
1.33 +
1.34 + ////
1.35 + // Execute the next test in the generator function.
1.36 + //
1.37 + function nextTest() {
1.38 + tests.next();
1.39 + }
1.40 +
1.41 + ////
1.42 + // Generator function for test steps for bug 321671: Scroll position
1.43 + // should be retained when moving backwards and forwards through pages
1.44 + // when bfcache is enabled.
1.45 + //
1.46 + function testIterator()
1.47 + {
1.48 + // Variable to hold the scroll positions of the test pages.
1.49 + var scrollPositions = [];
1.50 +
1.51 + // Make sure bfcache is on.
1.52 + enableBFCache(true);
1.53 +
1.54 + // Load enough test pages that so the first one is evicted from the
1.55 + // bfcache, scroll down on each page, and save the
1.56 + // current scroll position before continuing. Verify that each
1.57 + // page we're navigating away from is initially put into the bfcache.
1.58 + for (var i = 0; i <= MAX_BFCACHE_PAGES + 1; i++) {
1.59 + doPageNavigation( {
1.60 + uri: "data:text/html,<html><head><title>bug321671 page" + (i + 1) +
1.61 + "</title></head>" +
1.62 + "<body><table border='1' width='300' height='1000'>" +
1.63 + "<tbody><tr><td>" +
1.64 + " page " + (i + 1) + ": foobar foobar foobar foobar " +
1.65 + "</td></tr></tbody></table> " +
1.66 + "</body></html>",
1.67 + eventsToListenFor: ["pageshow", "pagehide"],
1.68 + expectedEvents: [ { type: "pagehide",
1.69 + persisted: true,
1.70 + title: i == 0 ?
1.71 + undefined : "bug321671 page" + i },
1.72 + { type: "pageshow",
1.73 + title: "bug321671 page" + (i + 1) } ],
1.74 + onNavComplete: nextTest
1.75 + } );
1.76 + yield undefined;
1.77 +
1.78 + is(TestWindow.getWindow().scrollY, 0,
1.79 + "Page initially has non-zero scrollY position");
1.80 + TestWindow.getWindow().scrollByLines(10 + (2*i));
1.81 + ok(TestWindow.getWindow().scrollY > 0,
1.82 + "Page has zero scrollY position after scrolling");
1.83 + scrollPositions[i] = TestWindow.getWindow().scrollY;
1.84 + }
1.85 +
1.86 + // Go back to the first page, one page at a time. For each 'back'
1.87 + // action, verify that its vertical scroll position is restored
1.88 + // correctly. Verify that the last page in the sequence
1.89 + // does not come from the bfcache. Again verify that all pages
1.90 + // that we navigate away from are initially
1.91 + // stored in the bfcache.
1.92 + for (i = MAX_BFCACHE_PAGES + 1; i > 0; i--) {
1.93 + doPageNavigation( {
1.94 + back: true,
1.95 + eventsToListenFor: ["pageshow", "pagehide"],
1.96 + expectedEvents: [ { type: "pagehide",
1.97 + title: "bug321671 page" + (i+1),
1.98 + persisted: true },
1.99 + { type: "pageshow",
1.100 + title: "bug321671 page" + i,
1.101 + persisted: i > 1 } ],
1.102 + onNavComplete: nextTest
1.103 + } );
1.104 + yield undefined;
1.105 +
1.106 + is(TestWindow.getWindow().scrollY, scrollPositions[i-1],
1.107 + "Scroll position not restored while going back!");
1.108 + }
1.109 +
1.110 + // Traverse history forward now, and verify scroll position is still
1.111 + // restored. Similar to the backward traversal, verify that all
1.112 + // but the last page in the sequence comes from the bfcache. Also
1.113 + // verify that all of the pages get stored in the bfcache when we
1.114 + // navigate away from them.
1.115 + for (i = 1; i <= MAX_BFCACHE_PAGES + 1; i++) {
1.116 + doPageNavigation( {
1.117 + forward: true,
1.118 + eventsToListenFor: ["pageshow", "pagehide"],
1.119 + expectedEvents: [ { type: "pagehide",
1.120 + persisted: true,
1.121 + title: "bug321671 page" + i },
1.122 + { type: "pageshow",
1.123 + persisted: i < MAX_BFCACHE_PAGES + 1,
1.124 + title: "bug321671 page" + (i + 1) } ],
1.125 + onNavComplete: nextTest
1.126 + } );
1.127 + yield undefined;
1.128 +
1.129 + is(TestWindow.getWindow().scrollY, scrollPositions[i],
1.130 + "Scroll position not restored while going forward!");
1.131 + }
1.132 +
1.133 + // Tell the framework the test is finished. Include the final 'yield'
1.134 + // statement to prevent a StopIteration exception from being thrown.
1.135 + finish();
1.136 + yield undefined;
1.137 + }
1.138 +
1.139 + ]]></script>
1.140 +
1.141 + <browser type="content-primary" flex="1" id="content" src="about:blank"/>
1.142 +</window>
