Call javascript server-side

[moshe1]

Is there any way I call javascript methods on the client from a server side managed bean?

[sergeysmirnov]

Could you clarify what do you mean? Some usecases will be great

[moshe1]

In IceFaces I can make any javascript call using JavascriptContext.addJavascriptCall(FacesContext.getCurrentInstance(), 'alert();');

I use this functionality extensively: popping up dialog boxes, error/sucess message, upatine JS components etc

[sergeysmirnov]

JavascriptContext.addJavascriptCall(FacesContext.getCurrentInstance(), 'alert();');

This does not mean calling javascript from the server. It means performing the call on the client side when ajax request is complete.

The ajax4jsf's equivalent is 'oncomplete' attribute of any ajax command components (a4j:support, a4j:commandButton, a4j:commandLink, a4j:poll, a4j:push, a4j:jsFunction, etc).
For example:

<a4j:commandButton value="update" oncomplete="alert('it is me!')" />

Moreover, ajax command components have a 'data' attribute that allows to pass any data from server to client and use it in the javascript invocation.

for example:

<a4j:commandButton value="update" data="#{mbean.customer}" oncomplete="doSomething(data.firstName, data.lastName)" />

[moshe1]

Is there any way of getting the same functionality without binding to a specific component?

I need to call JS when the current ajax request (from any component) completes not when the ajax request from a specific component completes.

For example: in my error handler on the server I need to display an error message on the client.


What type of integration is there with jMaki?

[ishabalov]

Nice feature, I meen ability to add JS call payload to any ajax response. So far we have only ability to add data payload. We will have it in few weeks. Thank you for request :-)

[moshe1]

cool - thanks for the quick response

[mdmaurer]

"SergeySmirnov" wrote:

JavascriptContext.addJavascriptCall(FacesContext.getCurrentInstance(), 'alert();');

...Moreover, ajax command components have a 'data' attribute that allows to pass any data from server to client and use it in the javascript invocation.

for example:

<a4j:commandButton value="update" data="#{mbean.customer}" oncomplete="doSomething(data.firstName, data.lastName)" />

In your example above with the commandButton and the 'data' and 'oncomplete' attributes, what would the java code look like for the getCustomer() method in mbean? What kind of an object is it returning in order to access the data via "data.firstName, data.lastName"? Can that method just return a String and be referenced in the javascript by simply saying doSomething(data)?