Changes to get the navigation unit tests green again.

- Modified changePage() to set isPageTransitioning earlier.
- Modified pageSequence() to allow the current changepage callback stack to unwind before firing off the next function in the sequence.

Author: jblas

js/jquery.mobile.navigation.js

@@ -575,6 +575,12 @@
 			return;
 		}
 
+		// Set the isPageTransitioning flag to prevent any requests from
+		// entering this method while we are in the midst of loading a page
+		// or transitioning.
+
+		isPageTransitioning = true;
+
 		var settings = $.extend( {}, $.mobile.changePage.defaults, options );
 
 		// Make sure we have a pageContainer to work with.
@@ -628,11 +634,10 @@
 		// XXX_jblas: We need to remove this at some point when we allow for transitions
 		//            to the same page.
 		if( active && active.page[0] === toPage[0] ) {
+			isPageTransitioning = false;
 			return;
 		}
 
-		isPageTransitioning = true;
-
 		// We need to make sure the page we are given has already been enhanced.
 		enhancePage( toPage, settings.role );
 
@@ -708,6 +713,7 @@
 
 			releasePageTransitionLock();
 
+
 			// Let listeners know we're all done changing the current page.
 			mpc.trigger( "changepage" );
 		});
@@ -924,6 +930,6 @@
 		else {
 			$.mobile.changePage( $.mobile.firstPage, { transition: transition, changeHash: false, fromHashChange: true } );
 		}
-		});
+	});
 
 })( jQuery );

tests/jquery.testHelper.js

@@ -92,7 +92,9 @@
 			// bind the recursive call to the event
 			$.mobile.pageContainer.one(event, function(){
 				clearTimeout(warnTimer);
-				self.pageSequence(fns, event);
+
+				// Let the current stack unwind before we fire off the next item in the sequence.
+				setTimeout(function(){ self.pageSequence(fns, event); }, 0);
 			});
 
 			// invoke the function which should, in some fashion,