All posts tagged widget

  • Get widgetVar by Id

    primefaces

    I have many cases in my apps where I needed to get the widgetVar object in Javascript by the component Id.
    I have made this helpful function in order to achieve that goal .

    Usage

    This will return the object, in the previous case a dialog widgetVar object is returned, to show it simply call show()  right away.

    – Conclusion

    All the widgetVars are stored in the PrimeFaces.widgets. namespace.
    Iterating over that namespace and comparing the given Id with the object’s is the way to find your widgetVar.

    Note: this equals to the expression   #{p:widgetVar('form:dialogId')}  (Server-side evaluation)

     

  • Primefaces: Close All Lightboxs

    primefaces

    I had a datatable which contains in each row a link to a different iFrame p:lighbox, and on the same page I had to repeat the same datatables with different objects modules and they also have iFrame p:lightbox.

    I came to a place where I had to close the p:lightbox from a backing bean according to some logic validation,
    and in the same time I can’t know the widgetvar of the current opened p:lightbox, so I had to write some generic function to close all the Lightboxes inside the page.

    First I had to know how primefaces generate the widget vars, after some search I found a function in primefaces which takes an ID of a component and generate a proper widgetvar for it.

    Basically it does the following it gets the id of the component, for example formId:componentId and replaces the : with _ and append a widget_ to the beginning of the var so it becomes widget_formId_componentId.

    So I came with the following function of jQuery to close all my lightboxs in the page

    First I select each .ui-lightbox class, which is the div of the iFrame and then I do the simple formation of primefaces widgetvar generation, but primefaces adds _panel to the end of the ID of that div, so I had to remove it.

    Note: do not specify any widgetvar to your lightboxs, not even dynamic ones.