The Tor Browser: layout/style/test/test_load_events_on_stylesheets.html@deefc01c0e14 (annotated)

layout/style/test/test_load_events_on_stylesheets.html@deefc01c0e14 (annotated)

layout/style/test/test_load_events_on_stylesheets.html

Thu, 15 Jan 2015 21:03:48 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 15 Jan 2015 21:03:48 +0100
branch: TOR_BUG_9701
changeset 11: deefc01c0e14
permissions: -rw-r--r--

Integrate friendly tips from Tor colleagues to make (or not) 4.5 alpha 3;
This includes removal of overloaded (but unused) methods, and addition of
a overlooked call to DataStruct::SetData(nsISupports, uint32_t, bool.)

 <!DOCTYPE HTML>
 <html>
 <!--
 https://bugzilla.mozilla.org/show_bug.cgi?id=185236
 -->
 <head>
   <title>Test for Bug 185236</title>
   <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
   <script>
     var pendingEventCounter = 0;
     var messagePosted = false;
     SimpleTest.waitForExplicitFinish();
     addLoadEvent(function() {
       is(messagePosted, true, "Should have gotten onmessage event");
       is(pendingEventCounter, 0,
          "How did onload for the page fire before onload for all the stylesheets?");
       SimpleTest.finish();
     });
     // Count the link we're about to parse
     pendingEventCounter = 1;
   </script>
   <link rel="stylesheet" href="data:text/css,*{}"
         onload="--pendingEventCounter;
                 ok(true, 'Load event firing on basic stylesheet')"
         onerror="--pendingEventCounter;
                  ok(false, 'Error event firing on basic stylesheet')">
 </head>
 <body>
 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=185236">Mozilla Bug 185236</a>
 <p id="display"></p>
 <div id="content" style="display: none">
 </div>
 <pre id="test">
 <script type="application/javascript">
 /** Test for Bug 185236 **/
 // Verify that there are no in-flight sheet loads right now; we should have
 // waited for them when we hit the script tag
 is(pendingEventCounter, 0, "There should be no pending events");
 // Test sheet that will already be complete when we write it out
 ++pendingEventCounter;
 // Make sure that a postMessage we do right now fires after the onload handler
 // for the stylesheet.  If we ever change the timing of sheet onload, we will
 // need to change that.
 window.onmessage = function() {
   messagePosted = true;
   // There are 4 pending events: two from the two direct example.com loads,
   // and 2 from the two data:text/css loads that import things
   is(pendingEventCounter, 4, "Load event for sheet should have fired");
 }
 window.postMessage("", "*");
 document.write('<link rel="stylesheet" href="data:text/css,*{}"\
                 onload="--pendingEventCounter;\
                         ok(true, \'Load event firing on basic stylesheet\')"\
                 onerror="--pendingEventCounter;\
                         ok(false, \'Error event firing on basic stylesheet\')">');
 // Make sure we have that second stylesheet
 is(document.styleSheets.length, 3, "Should have three stylesheets");
 // Make sure that the second stylesheet is all loaded
 // If we ever switch away from sync loading of already-complete sheets, this
 // test will need adjusting
 is(document.styleSheets[2].cssRules.length, 1, "Should have one rule");
 // Make sure the load event for that stylesheet has not fired yet
 is(pendingEventCounter, 1, "There should be one pending event");
 ++pendingEventCounter;
 document.write('<style\
                 onload="--pendingEventCounter;\
                         ok(true, \'Load event firing on inline stylesheet\')"\
                 onerror="--pendingEventCounter;\
                         ok(false, \'Error event firing on inline stylesheet\')"></style>');
 // Make sure the load event for that second stylesheet has not fired yet
 is(pendingEventCounter, 2, "There should be two pending events");
 ++pendingEventCounter;
 document.write('<link rel="stylesheet" href="http://www.example.com"\
                 onload="--pendingEventCounter;\
                         ok(false, \'Load event firing on broken stylesheet\')"\
                 onerror="--pendingEventCounter;\
                         ok(true, \'Error event firing on broken stylesheet\')">');
 ++pendingEventCounter;
 var link = document.createElement("link");
 link.rel = "stylesheet";
 link.href = "http://www.example.com";
 link.onload = function() { --pendingEventCounter;
   ok(false, 'Load event firing on broken stylesheet');
 };
 link.onerror = function() { --pendingEventCounter;
   ok(true, 'Error event firing on broken stylesheet');
 }
 document.body.appendChild(link);
 ++pendingEventCounter;
 link = document.createElement("link");
 link.rel = "stylesheet";
 link.href = "data:text/css,*{}";
 link.onload = function() { --pendingEventCounter;
   ok(true, 'Load event firing on external stylesheet');
 };
 link.onerror = function() { --pendingEventCounter;
   ok(false, 'Error event firing on external stylesheet');
 }
 document.body.appendChild(link);
 // Make sure we have that last stylesheet
 is(document.styleSheets.length, 7, "Should have seven stylesheets here");
 // Make sure that the sixth stylesheet is all loaded
 // If we ever switch away from sync loading of already-complete sheets, this
 // test will need adjusting
 is(document.styleSheets[6].cssRules.length, 1, "Should have one rule");
 ++pendingEventCounter;
 link = document.createElement("link");
 link.rel = "stylesheet";
 link.href = "data:text/css,@import url('data:text/css,*{}')";
 link.onload = function() { --pendingEventCounter;
   ok(true, 'Load event firing on external stylesheet');
 };
 link.onerror = function() { --pendingEventCounter;
   ok(false, 'Error event firing on external stylesheet');
 }
 document.body.appendChild(link);
 ++pendingEventCounter;
 link = document.createElement("link");
 link.rel = "stylesheet";
 link.href = "data:text/css,@import url('http://www.example.com')";
 link.onload = function() { --pendingEventCounter;
   ok(false, 'Load event firing on broken stylesheet');
 };
 link.onerror = function() { --pendingEventCounter;
   ok(true, 'Error event firing on broken stylesheet');
 }
 document.body.appendChild(link);
 // Make sure the load events for all those stylesheets have not fired yet
 is(pendingEventCounter, 7, "There should be one pending event");
 </script>
 </pre>
 </body>
 </html>

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