Package org.eclipse.help.base
Class AbstractHelpScope
java.lang.Object
org.eclipse.help.base.AbstractHelpScope
Represents a scope which can be used to specify which topics are shown in the
table of contents and which entries will show in the index. The inScope() functions
are used by the help system to determine which elements to show. Both the table of
contents and index are trees and the help system reads these trees starting with the
root and working down through the children.
- Since:
- 3.5
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionabstract String
a single information center instance can display content in multiple locales.final boolean
hasInScopeChildren
(IUAElement element) Convenience method to make it easier to write subclasses In the case of an IIndexSee element this method tests to see if the target is in scope.abstract boolean
inScope
(IIndexEntry entry) Determine whether an index entry is in scopeboolean
In the default implementation of this method an IndexSee element is in scope if it's target is in scope.abstract boolean
Determine whether a table of contents is in scopeabstract boolean
Determine whether a topic is in scopeboolean
The help system can build the trees faster if it knows that an out of scope element cannot have child elements which are in scope.
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Constructor Details
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AbstractHelpScope
public AbstractHelpScope()
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Method Details
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inScope
Determine whether a table of contents is in scope -
inScope
Determine whether a topic is in scope -
inScope
Determine whether an index entry is in scope -
getName
a single information center instance can display content in multiple locales. This function exists to provide a name for a specific locale.- Parameters:
locale
- a string representing the locale used for the UI- Returns:
- a name for this scope appropriate for the locale which will be used in the scope selection dialog. It is recommended that the name be no more than 20 characters long.
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inScope
In the default implementation of this method an IndexSee element is in scope if it's target is in scope. May be overridden to exclude more IndexSee elements from the scope- Parameters:
see
- theIIndexSee
to check- Returns:
- true if the target is in scope
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isHierarchicalScope
public boolean isHierarchicalScope()The help system can build the trees faster if it knows that an out of scope element cannot have child elements which are in scope. This is called a hierarchical scope. If an out of scope element can have in scope children this function should be overridden and the help system will perform a deeper search. -
hasInScopeChildren
Convenience method to make it easier to write subclasses In the case of an IIndexSee element this method tests to see if the target is in scope. For all other elements it tests all children and if this is not a hierarchical scope all descendants are tested.- Parameters:
element
- An element which may have children- Returns:
- true if at least one child is in scope
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