Java Doc for IContextComputer.java in  » IDE-Eclipse » ui-workbench » org » eclipse » ui » help » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » IDE Eclipse » ui workbench » org.eclipse.ui.help 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.eclipse.ui.help.IContextComputer

All known Subclasses:   org.eclipse.ui.help.ViewContextComputer,  org.eclipse.ui.help.DialogPageContextComputer,
IContextComputer
public interface IContextComputer (Code)
A content computer is used to dynamically calculate help support contexts at the time the user requests help.

This interface may be implemented by clients.





Method Summary
public  Object[]computeContexts(HelpEvent event)
     Computes contexts for the help system.
public  Object[]getLocalContexts(HelpEvent event)
     Returns the local contexts for this context computer.



Method Detail
computeContexts
public Object[] computeContexts(HelpEvent event)(Code)
Computes contexts for the help system.
Parameters:
  event - the help event which triggered this request for help a mixed-type array of context ids (type String)and/or help contexts (type IContext)
See Also:   org.eclipse.help.IContext



getLocalContexts
public Object[] getLocalContexts(HelpEvent event)(Code)
Returns the local contexts for this context computer.

Typically this method is called by other instances of IContextComputer in their computeContexts method.

The important concept here is that the value returned by computeContexts represents the complete help contexts and is passed directly to the help support system.

However the value returned by this method represents the only the contexts for the particular control with which this IContextComputer is associated.


Parameters:
  event - the help event which triggered this request for help a mixed-type array of context ids (type String)and/or help contexts (type IContext)
See Also:   org.eclipse.help.IContext



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