Wt

Hey Omair,

This is complicated. The first thing to realize is when to use it: if you want to write JavaScript without writing JavaScript, i.e. if you want C to be automagically converted to JavaScript.

There is a tutorial dedicated to this: http://www.webtoolkit.eu/wt/doc/reference/html/example.html, which is included as the "tree" example in Wt.

There is now also a more convenient overload available of EventSignal::connect(const std::string&) which takes as argument a JavaScript function:

e.g.

clicked().connect("function() { alert('hello!'); }");

This is a more convenient alternative than JSlot when you do not need the automatic disconnect when the "receiver" goes out of scope. You shouldn't use WStatelessSlot API directly (it's not public API, although a pointer to it is referenced from WObject methods).

Note that stateless slot implementations are a mere optimisation to eliminate a server round trip for simple javascript updates. You are using them already since for example WWidget::show() is implemented in this way: if you connect WWidget::show() to e.g. a clicked() signal, then this is optimized in client-side JavaScript code.

Regards,

koen

Fixed in 3.1.6