function longWait() {
setTimeout(function() { gGen.next(); }, 1000);
}
// onIframeHashchange, onIframeLoad, and onIframeScroll are all called by the
// content we load into our iframe in order to notify the parent frame of an
// event which was fired.
function onIframeHashchange() {
gNumHashchanges++;
gGen.next();
}
function onIframeLoad() {
if (gCallbackOnIframeLoad) {
gCallbackOnIframeLoad = false;
gGen.next();
}
}
function onIframeScroll() {
is(gNumHashchanges, 0, "onscroll should fire before onhashchange.");
}
function enableIframeLoadCallback() {
gCallbackOnIframeLoad = true;
}
function noEventExpected(msg) {
is(gNumHashchanges, 0, msg);
// Even if there's an error, set gNumHashchanges to 0 so other tests don't
// fail.
gNumHashchanges = 0;
}
function eventExpected(msg) {
is(gNumHashchanges, 1, msg);
// Eat up this event, whether the test above was true or not
gNumHashchanges = 0;
}
/*
* The hashchange event is dispatched asynchronously, so if we want to observe
* it, we have to yield within run_test(), transferring control back to the
* event loop.
*
* When we're expecting our iframe to observe a hashchange event after we poke
* it, we just yield and wait for onIframeHashchange() to call gGen.next() and
* wake us up.
*
* When we're testing to ensure that the iframe doesn't dispatch a hashchange
* event, we try to hook onto the iframe's load event. We call
* enableIframeLoadCallback(), which causes onIframeLoad() to call gGen.next()
* upon the next observed load. After we get our callback, we check that a
* hashchange didn't occur.
*
* We can't always just wait for page load in order to observe that a
* hashchange didn't happen. In these cases, we call longWait() and yield
* until either a hashchange occurs or longWait's callback is scheduled. This
* is something of a hack; it's entirely possible that longWait won't wait long
* enough, and we won't observe what should have been a failure of the test.
* But it shouldn't happen that good code will randomly *fail* this test.
*/
function* run_test() {
/*
* TEST 1 tests that:
* <body onhashchange = ... > works,
* the event is (not) fired at the correct times
*/ varframe = document.getElementById("frame"); var frameCw = frame.contentWindow;
enableIframeLoadCallback();
frameCw.document.location = "file_bug385434_1.html";
// Wait for the iframe to load and for our callback to fire
yield undefined;
sendMouseEvent({type: "click"}, "link1", frameCw);
yield undefined;
eventExpected("Clicking link1 should trigger a hashchange.");
sendMouseEvent({type: "click"}, "link1", frameCw);
longWait();
yield undefined;
// succeed if a hashchange event wasn't triggered while we were waiting
noEventExpected("Clicking link1 again should not trigger a hashchange.");
sendMouseEvent({type: "click"}, "link2", frameCw);
yield undefined;
eventExpected("Clicking link2 should trigger a hashchange.");
frameCw.history.go(-1);
yield undefined;
eventExpected("Going back should trigger a hashchange.");
frameCw.history.go(1);
yield undefined;
eventExpected("Going forward should trigger a hashchange.");
// window.location has a trailing '#' right now, so we append "link1", not
// "#link1".
frameCw.window.location = frameCw.window.location + "link1";
yield undefined;
eventExpected("Assigning to window.location should trigger a hashchange.");
// Set up history in the iframe which looks like:
// file_bug385434_1.html#link1
// file_bug385434_2.html
// file_bug385434_1.html#foo <-- current page
enableIframeLoadCallback();
frameCw.window.location = "file_bug385434_2.html";
yield undefined;
// Now when we do history.go(-2) on the frame, it *shouldn't* fire a
// hashchange. Although the URIs differ only by their hashes, they belong to
// two different Documents.
frameCw.history.go(-2);
longWait();
yield undefined;
noEventExpected("Moving between different Documents shouldn't " + "trigger a hashchange.");
/*
* TEST 2 tests that:
* <frameset onhashchange = ... > works,
* the event is targeted at the window object
* the event's cancelable, bubbles settings are correct
*/
eventExpected("frame onhashchange should fire events.");
// iframe should set gSampleEvent
is(gSampleEvent.target, frameCw, "The hashchange event should be targeted to the window.");
is(gSampleEvent.type, "hashchange", "Event type should be 'hashchange'.");
is(gSampleEvent.cancelable, false, "The hashchange event shouldn't be cancelable.");
is(gSampleEvent.bubbles, false, "The hashchange event should not bubble.");
/*
* TEST 3 tests that:
* hashchange is dispatched if the current document readyState is
* not "complete" (bug 504837).
*/
frameCw.document.location = "file_bug385434_3.html";
yield undefined;
eventExpected("Hashchange should fire even if the document " + "hasn't finished loading.");
SimpleTest.finish();
}
var gGen = run_test();
gGen.next();
</script>
</pre>
</body>
</html>
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