- From: Boris Zbarsky <bzbarsky@MIT.EDU>
- Date: Sat, 02 Jul 2011 23:50:45 -0400
- To: public-webapps@w3.org
On 7/2/11 1:46 PM, John J. Barton wrote: > 2) element transformation. The replacement fires "after" a mutation. > Library or tools that want to transform the application dynamically want > to get notification "before" the mutation. A common solution then is > to bracket changes: > "beforeChange" or "onModelChanging" > "afterChange" or "onModelChanged" This really only works if you trust the listeners. The browser core can't trust scripted listeners using Web APIs..... > So, for example, I can't see how to implement > JS pre-processing using only the after event. (This may not be > possible with the current mutation events either, but it is something > I want to to). It's not clear that you need a web-facing API for your use case, though.... -Bori
Received on Sunday, 3 July 2011 03:51:25 UTC