js/xpconnect/tests/chrome/test_scriptSettings.xhtml

   1 <?xml version="1.0"?>
   2 <?xml-stylesheet type="text/css" href="chrome://global/skin"?>
   3 <?xml-stylesheet type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"?>
   4 <!--
   5 https://bugzilla.mozilla.org/show_bug.cgi?id=937317
   6 -->
   7 <window title="Mozilla Bug 937317"
   8         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
   9   <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>
  10
  11   <!-- test results are displayed in the html:body -->
  12   <body xmlns="http://www.w3.org/1999/xhtml">
  13   <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=937317"
  14      target="_blank">Mozilla Bug 937317</a>
  15   </body>
  16
  17   <!-- test code goes here -->
  18   <iframe src="./file_empty.html"></iframe>
  19   <script type="application/javascript">
  20   <![CDATA[
  21
  22   /** Test for the script settings stack. **/
  23   SimpleTest.waitForExplicitFinish();
  24   SpecialPowers.pushPrefEnv({"set": [["security.allow_eval_with_system_principal",
  25                                       true]]});
  26   addLoadEvent(function() {
  27     let iwin = window[0];
  28
  29     // Smoketest.
  30     is(Cu.getIncumbentGlobal(), window, "smoketest");
  31
  32     // Calling a cross-compartment non-scripted function changes the
  33     // compartment, but not the incumbent script settings object.
  34     var sb = new Cu.Sandbox(window, { wantComponents: true });
  35     is(sb.Components.utils.getIncumbentGlobal(), window, "cross-compartment sb non-scripted");
  36     is(iwin.Components.utils.getIncumbentGlobal(), window, "cross-compartment win non-scripted");
  37
  38     // If we call a scripted function in the other compartment, that becomes
  39     // the incumbent script.
  40     function gib() { return Cu.getIncumbentGlobal(); };
  41     Cu.evalInSandbox(gib.toSource(), sb);
  42     iwin.eval(gib.toSource());
  43     is(sb.gib(), sb, "cross-compartment sb scripted");
  44     is(iwin.gib(), iwin, "cross-compartment win scripted");
  45
  46     // Eval-ing top-level script in another component makes that compartment the
  47     // incumbent script.
  48     is(Cu.evalInSandbox('Components.utils.getIncumbentGlobal()', sb), sb, 'eval sb');
  49     is(iwin.eval('Components.utils.getIncumbentGlobal()'), iwin, 'eval iwin');
  50
  51     // Make sure that the callback mechanism works.
  52     function makeCallback(expectedGlobal, deferred, kind) {
  53       function cb(incumbentGlobal) {
  54         is(incumbentGlobal, expectedGlobal, "Callback got the right incumbent global: " + kind);
  55         if (deferred)
  56           deferred.resolve();
  57       }
  58       info("Generated callback: " + kind);
  59       return cb;
  60     }
  61
  62     var bound = Cu.getIncumbentGlobal.bind(Cu, makeCallback(window, undefined, "simple bound"));
  63     is(bound(), window, "Bound method returns the right global");
  64
  65     // Callbacks grab the incumbent script at the time of invocation.
  66     //
  67     // Note - We avoid calling the initial defer |d| so that it's not in-scope for everything below.
  68     let initialDefer = Promise.withResolvers();
  69     setTimeout(Cu.getIncumbentGlobal.bind(Cu, makeCallback(window, initialDefer, "same-global setTimeout")), 0);
  70     initialDefer.promise.then(function() {
  71
  72       // Try cross-global setTimeout where |window| is the incumbent script when the callback is created.
  73       let d = Promise.withResolvers();
  74       iwin.setTimeout(Cu.getIncumbentGlobal.bind(Cu, makeCallback(window, d, "cross-global setTimeout by |window|")), 0);
  75       return d.promise;
  76     }).then(function() {
  77
  78       // Try cross-global setTimeout where |iwin| is the incumbent script when the callback is created.
  79       let d = Promise.withResolvers();
  80       iwin.wrappedJSObject.timeoutFun = Cu.getIncumbentGlobal.bind(Cu, makeCallback(iwin, d, "cross-global setTimeout by |iwin|"));
  81       iwin.eval('setTimeout(timeoutFun, 0);');
  82       return d.promise;
  83     }).then(function() {
  84
  85       // The incumbent script override doesn't take effect if the callback is scripted.
  86       let d = Promise.withResolvers();
  87       iwin.wrappedJSObject.timeoutFun2 = Cu.getIncumbentGlobal.bind(Cu, makeCallback(iwin, d, "cross-global setTimeout of scripted function"));
  88       iwin.eval('var timeoutFun2Wrapper = function() { timeoutFun2(); }');
  89       setTimeout(iwin.wrappedJSObject.timeoutFun2Wrapper, 0);
  90       return d.promise;
  91     }).then(function() {
  92
  93       // Try event listeners.
  94       let d = Promise.withResolvers();
  95       let body = iwin.document.body;
  96       body.addEventListener('click', Cu.getIncumbentGlobal.bind(Cu, makeCallback(window, d, "cross-global event listener")));
  97       body.dispatchEvent(new iwin.PointerEvent('click'));
  98       return d.promise;
  99
 100     }).then(function() {
 101
 102       // Try an event handler set by |iwin|.
 103       let d = Promise.withResolvers();
 104       let body = iwin.document.body;
 105       iwin.wrappedJSObject.handler = Cu.getIncumbentGlobal.bind(Cu, makeCallback(iwin, d, "cross-global event handler"));
 106       iwin.eval('document.body.onmousemove = handler');
 107       body.dispatchEvent(new iwin.MouseEvent('mousemove'));
 108       return d.promise;
 109
 110     }).then(function() {
 111
 112       // Try an event handler compiled by a content attribute.
 113       let d = Promise.withResolvers();
 114       let body = iwin.document.body;
 115       iwin.wrappedJSObject.innerHandler = Cu.getIncumbentGlobal.bind(Cu, makeCallback(iwin, d, "cross-global compiled event handler"));
 116       iwin.eval("document.body.setAttribute('onmouseout', 'innerHandler()')");
 117       body.dispatchEvent(new iwin.MouseEvent('mouseout'));
 118       return d.promise;
 119     }).then(function() {
 120
 121       SimpleTest.finish();
 122     });
 123   });
 124
 125   ]]>
 126   </script>
 127 </window>