JavaScript objects
Each time a JViews Diagrammer JSF component is created, a corresponding JavaScript™ object is also created. You can access this object through a global JavaScript variable whose name is the same as the id attribute of the tag. For example, the tag:
<jvdf:diagrammerView id="diagrammer" [...] />
will be rendered as the following JavaScript code:
diagrammer = new IlvDiagrammerViewProxy ('diagrammer', ...);
NOTE See the documentation of the Java™ API of each renderer to know which JavaScript proxy will be generated for this component.
You can modify the object locally by using a set of methods attached to this object. For further information about available JavaScript objects, see the JavaScript API reference documentation of JViews Diagrammer.
For example, the following code defines a button that dynamically installs a zoom interactor on the view without a server round trip.
<jvf:panInteractor id="pan"
<jvf:imageButton [...] onclick="diagrammer.setInteractor(pan)" />
<jvdf:diagrammerView id="diagrammer" [...] />
At rendering time, an
IlvDiagrammerViewProxy JavaScript object is created, accessible through the JavaScript variable. Then, since a JavaScript object named
pan has been created in the same way, you can directly set this interactor with the
setInteractor method.
Additionally, the behavior of these JavaScript objects is to keep their state, so that if a submit request is issued, the state of the object is sent to the server. This behavior makes sure that the client and the server remain coherent.
For further information about available JavaScript objects, see the JavaScript API reference documentation of JViews Diagrammer.
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