Hey all,
For those of you who want to use Wt to handle only part(s) of a an
existing web page, we now also support the so-called "WidgetSet"
deployment mode.
The main way of embedding a Wt application in an existing web page is like this:
...
<body>
<div id="panel1"></div>
<div id="panel2"></div>
<script src="/myapp.wt?div1=panel1&div2=panel2"></script>
</body>
...
This will start your application, and it passes two parameters (div1
and div2) which may be bound in the application as a top-level widget
(a div could corerspond to a WContainerWidget). A single application
can manage any number of top-level elements, and you are free to use a
convention for the element id's or pass them as parameters (as in this
case).
In the application you would have some code that does this:
...
WApplication *myApp = ...
WContainerWidget *panel1 = new WContainerWidget();
WContainerWidget *panel2 = new WContainerWidget();
myApp->bindWidget(panel1, myApp->environment().getArgument("div1")[0]);
myApp->bindWidget(panel2, myApp->environment().getArgument("div2")[0]);
// use panel1 and panel2 as two top-level widgets instead of myApp->root()
...
We added a new example (hello-widgetset) that demonstrates this.
What would be a nice addition in the future, is to allow the
definition of a JavaScript API for your application which would
provide a simple way to call C++ methods from JavaScript (and
JavaScript call-backs from C++). This is a bit similar to how we now
have support for JSignal<> and Wt.emit(), but it would be for more
more general.
Regards,
koen
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