Your on the right path, apple has got the same idea when it comes to web app frameworks, check out this article: www.daringfireball.net/2009/12/pastrykit and the source code: www.github.com/jimeh/PastryKit
It doesn't seems like anybody has modified this code enuf for general useage, but its methodology has a lota potential, apple should know how to write a proper framework for their own device right? Daniel Ellison wrote: > Hi all, > > I've run into a situation where I may be trying hard to do something > that can be accomplished very easily but for my ignorance. > > There has been discussion on this list about iPhone cache sizes and > the wisdom of using certain frameworks which exceed the cache limit. > My thought was to store these extra-large JavaScript libraries in a > local SQLite database, retrieving and evaluating them into the global > scope on page load. If a library isn't in the database I would request > it with XHR, store it in the db, then evaluate it into the global > scope. > > First, is this AT ALL useful? Does it actually circumvent the cache > size limit? I know about offline storage and cache manifests, etc. But > my first attempts at implementing this were wonky at best. The > browsers got into a state where they were JUST requesting (and > receiving) the manifest file and would refuse to reload the page. > > Second, I am having a hell of a time getting libraries to be evaluated > in the correct order. I believe it has something to do with callbacks > and their asynchronous nature. With that assumption, and in an attempt > to force a load order, I've come up with a (far too) elaborate scheme > that lists dependencies and refuses to load a library until its > dependencies are met. Despite this, it STILL seems that the libraries > are loading out of order, as evidenced by eror messages claiming that, > for instance, "Result of expression '$(_3c.selector).tap' [undefined] > is not a function", or "TypeError: Result of expression > '$.jQTouch' [undefined] is not a constructor", suggesting that jQuery > was not available to jQTouch. > > I've pasted my code into pastebin: > > http://pastebin.com/f3f365434 > > Keep in mind that this is preliminary code so there are bound to be > some inefficiencies/questionable bits, etc. It's been a long time > since I did any real JavaScript so I'm not up on the latest best > practices. > > Can anyone explain to me why the libraries might be loading in the > wrong order? And also, perhaps, why it has to be this complex? > > Thanks, > Dan -- You received this message because you are subscribed to the Google Groups "iPhoneWebDev" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/iphonewebdev?hl=en.
