Controllers
Controllers in Apache OpenOffice are between a frame and document model. This is their basic role as expressed in com.sun.star.frame.XController, which has methods getModel()
and getFrame()
. The method getFrame()
provides the frame that the controller is attached to. The method getModel()
returns a document model, but it may return an empty reference if the component does not have a model.
Usually the controller objects support additional interfaces specific to the document type they control, such as com.sun.star.sheet.XSpreadsheetView for Calc document controllers or com.sun.star.text.XTextViewCursorSupplier for Writer document controllers.
A single document model can be controlled simultaneously by several controller instances, each associated with a separate frame. Multiple controllers and frames are created by Apache OpenOffice when the user clicks Window - New Window.
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