Event handling with action instances for event-driven software application

A computer program product, tangibly embodied in a machine-readable storage device, for handling events, the computer program product being operable to cause data processing apparatus to:

• receive a user input request initiated in response to a user input received in an interface defined in a view of a model-view-controller;
• extract from the user input request a system event specified by the user input request and values for one or more system event parameters;
• receive, by a system event handler, the system event and the values for the one or more system event parameters;
• identify an action that implements an application event triggered by the system event, the action specifying a required set of parameters and an event handling function specifying one or more operations that can be performed;
• generate an instance of the identified action by mapping the one or more system event parameter values to the required set of parameters;
• and
• call the event handling function with the generated instance of the identified action, the event handling function being implemented in a corresponding application event handler to perform the specified one or more operations,
• wherein the system event includes information identifying one or more manipulations to be performed on data in a model associated with the view, and wherein the event handling function specifies one or more operations required to carry out the identified manipulations.

A computer system comprising:

• one or more digital processors for processing a model-view-controller computer program, wherein the model-view-controller computer program:
• receives a user input request initiated in response to a user input received in an interface defined in a view of the model-view-controller;
• extracts from the user input request a system event specified by the user input request and values for one or more system event parameters;
• receives, by a system event handler, the system event and the values for the one or more system event parameters;
• identifies an action that implements an application event triggered by the system event, the action specifying a required set of parameters and an event handling function specifying one or more operations that can be performed;
• generates an instance of the identified action by mapping the one or more system event parameter values to the required set of parameters;
• and
• calls the event handling function with the generated instance of the identified action, the event handling function being implemented in a corresponding application event handler to perform the specified one or more operations,
• wherein the system event includes information identifying one or more manipulations to be performed on data in a model associated with the view, and wherein the event handling function specifies one or more operations required to carry out the identified manipulations.