On URL Change

[The Little Guy]

Is there any way to watch for when the url changes?

 

 

for example, say I am here:

http://somesite.com/#key=value1

 

then say I click a link and it takes me here:

http://somesite.com/#key=value2

 

is there anyway to detect the change?

[trq]

There are ways of doing it, but it requires I little bit of work. I assume this is so you can have Ajax functionality while still being able to bookmark.

 

The way I have done it in the paste is to use a simple MVC pattern. You need a controller function which is called on every click, this then checks the url and executes a function accordingly.

[The Little Guy]

Yeah your pretty much right

 

Right now, I have a function called loadBody(). this loads the body, and changes the url (like posted above). After I posted this, and did some more research, the only conclusion I could come to was to set an interval.

 

The main reason I want this is so I can have a "history", because if I press the back button nothing would happen. But when I added the following code, it works, but I am not sure how hard that is on the browser, especially if it is run for say an hour.

var interval = setInterval('watchWindow()', 200);
function watchWindow(){
var wlocation = window.location.hash.toString();
if(wlocation != clocation){
	var loca = window.location.toString();
	var qstring = loca.match(/#(.+)/);
	if(qstring != null)
		var qstrings = qstring[1].split('&');
	if(qstring != null){
		for(var i=0; i<qstrings.length;i++){
			tmp = qstrings[i].split('=');
			if(tmp[0]=='v')
				v = tmp[1];
			else{
				ext = tmp[0];
				val = tmp[1];
			}
		}
	}
	clocation = wlocation;
	loadBody(v, ext, val);
}
}

 

Does that all make sense?

[.josh]

What about keeping track of it with a session array?

 

 

[The Little Guy]

How would that work? If I press the back button, nothing happens. How would a session help?

[.josh]

oh I thought you were wanting to make your own "back" button, like a link of your own, not the actual browser back button.

[The Little Guy]

What I have seems to work fine... I have left the site running for 8+ hours, and there seems to be no cache build up or anything slowing down my computer or browser. But... I have only tried that with Chrome, so that doesn't mean a different browser wouldn't start to slow down the computer and/or browser.

 

Any thoughts?