- From: Olli Pettay <Olli.Pettay@helsinki.fi>
- Date: Fri, 29 Jan 2010 01:38:55 +0200
- To: Jared Morse <jarcoal@gmail.com>
- CC: public-webapps@w3.org
On 1/29/10 12:22 AM, Jared Morse wrote: > Perhaps I am mistaken, but I believe you would still have to go around > and add that trigger to all the places the value is changed from. Well you could do something like Storage.prototype.setItemAndNotify = function (key, data) { this.setItem(key, data); var e = document.createEvent("StorageEvent"); e.initStorageEvent(...); window.dispatchEvent(e); } and use that when you set some item. Or just replace setItem method using prototype. That way you get the behavior you want, but still allow the other behavior. -Olli > > -J > > On Thu, Jan 28, 2010 at 2:06 PM, Olli Pettay <Olli.Pettay@helsinki.fi > <mailto:Olli.Pettay@helsinki.fi>> wrote: > > On 1/28/10 11:57 PM, Jared Morse wrote: > > Even though it occurs on the same document, doesn't mean loosely > coupled > code can't benefit from it. > > Imagine if each time you added a feature to a web app that > depended on > knowing a current value from the storage, you'd have to go > around to all > the places that value is changed and add some code to alert your new > code. If storage events triggered on the same document, all you > would > have to do is set a listener. > > > If you really need this behavior, you can always dispatch your own event > to the window when you change the data. > > > -Olli > > > > -J > > On Thu, Jan 28, 2010 at 1:41 PM, Olli Pettay > <Olli.Pettay@helsinki.fi <mailto:Olli.Pettay@helsinki.fi> > <mailto:Olli.Pettay@helsinki.fi > <mailto:Olli.Pettay@helsinki.fi>>> wrote: > > On 1/28/10 9:34 PM, Jared Morse wrote: > > Hi, I have a concern about the web storage event spec > (http://dev.w3.org/html5/webstorage/). > > The spec states: > "When the setItem(), removeItem(), and clear() methods are > called on a > Storage object x that is associated with a local storage > area, > if the > methods did something, then in every HTMLDocument object > whose > Window > object's localStorage attribute's Storage object is > associated > with the > same storage area, other than x, a storage event must be > fired..." > > My concern lies with the "other than x" part. Unless > I'm missing > something, these events would be even more useful if > they also > fired in > the HTMLDocument that initially made the storage call. > > > The page which is changing storage object knows already that the > storage object is being changed. Why would it need explicit > notification (event) about that? > > > -Olli > > > > > > Thanks for your time. > > -Jared > > > > >
Received on Thursday, 28 January 2010 23:39:32 UTC