XForms Custom Controls - Archive of obsolete content
nsixformsaccessors the nsixformsaccessors interface allows access to the value and the state of the instance node that the control is bound to (see extensions/xforms/nsixformsaccessors.idl).
... currently interface is: interface nsixformsaccessors : nsisupports { /** * return value of instance node.

RFE to the XForms API - Archive of obsolete content
as an example, the nsixformsaccessors interface which allows a user to get/set the value of an instance node and get the state of an instance node, is exposed by the nsixformsdelegate interface using the accessors property.
... ability to get nsixformsaccessors for instance node we need the ability to get to the nsixformsaccessors interface on a node by specifying the node via an xpath expression or by specifying the instance node directly (see bug 312956).

XForms API Reference - Archive of obsolete content
erfaces nsixforms...uielement interfaces implemented by the js part of a control nsixforms...accessors interface exposing states about the bound instance node for a given control frozen interfaces nsixformsmodelelement the model interface experimental interfaces nsixformsdelegate the delegate interface for xforms:custom_controls nsixformsaccessors the accessors interface for xforms:custom_controls nsixformsnsmodelelement custom extension(s) to the nsixformsmodelelement interface nsixformsnsinstanceelement custom extension(s) to the instance element ...

RFE to the Custom Controls Interfaces - Archive of obsolete content
in short, we have the following interfaces: nsixformsaccessors - serves to get/set the value of the instance data node that the xforms element is bound to as well as getting the various states of that node nsixformsdelegate - used to obtain the nsixformsaccessors interface nsixformsuiwidget - used by the xforms processor to update the value/state of an xforms element when its bound node's value/state is changed our current mechanism that allows authors to build custom controls assumes that the controls will be bound to instance nodes of simple content type.