There is no such thing as "producing clean vs not clean" html unless you rely 
on other peoples widgets.

100% of my widgets are a UIBTemplate.. of my creation… I use GWTQuery (or 
jquery) to add/remove elements from my widgets.  Thus, the HTML is exactly as 
clean as any HTML that any non-gwt application would use/produce.

Roger

On Oct 10, 2012, at 4:57 PM, Thomas Broyer <[email protected]> wrote:

> 
> 
> On Wednesday, October 10, 2012 10:13:36 PM UTC+2, Shaun Tarves wrote:
> There is no doubt that what GWT does, it's really good at. However, some 
> things that I've found GWT really isn't good at:
> 
> 1) Producing clean HTML
> 
> The structure of GWT "page views," especially with GWT widgets, is really 
> poor. The DOM gets bloated with lots of extra elements that are used for 
> focus and positioning. There are ways around this, but I feel like I'm 
> constantly fighting with GWT to generate HTML structure on my terms.
> 
> For example, some of the most lauded constructs in GWT are the Cell-based 
> widgets (CellTable, and CellList, specifically). With CellLists, you are 
> stuck with divs. There's no way around it. So that means if you want to make 
> a good data model-backed list and render it as a UL with LIs, you're SOL.
> 
> It's a false problem. GWT widgets are generally good as far as accessibility 
> is concerned, and let's put it clearly the only reason on having a "semantic" 
> DOM tree is for a11y.
> 
> 2) The history mechanism is really powerful, but it's important to get your 
> URL structure correct from the start. The built-in history token parser is a 
> little too rigid in that it forces the first part of your URLs to be of the 
> form xxxx:yyy and then anything you want after that. When you dive deeper 
> into GWT, you'll understand the limitations of the PlaceHistoryMapper and why 
> you might want to avoid the tokenizers and write your own parser.
> 
> On the plus side: it's pluggable. (it wasn't at first, you had to 
> re-implement the whole PlaceHistoryHander+PlaceHistoryMapper)
>  
> 3) The GWT CSS compiler doesn't understand any CSS3 attributes. Also, 
> browser-specific attributes (such as the * hack for IE) throw warnings on 
> compiling. It's not really GWT's fault (it's a Java compiler issue), but be 
> aware nonetheless.
> 
> You don't need browser-specific hacks, simply use "@if user.agent ie6 ie8". 
> The real issue is with selectors. FYI, gradients can now be used without 
> literal() in 2.5.0-rc2: 
> http://code.google.com/p/google-web-toolkit/issues/detail?id=5771
> 
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