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.\"
.IX Title "Padre::Help 3pm"
.TH Padre::Help 3pm "2014-09-11" "perl v5.20.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
Padre::Help \- Padre Help Provider API
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
The \f(CW\*(C`Padre::Help\*(C'\fR class provides a base class, default implementation
and \s-1API\s0 documentation for help provision support in Padre.
.PP
In order to setup a help system for a document type called \f(CW\*(C`XYZ\*(C'\fR one has to do the following:
Create a module called \f(CW\*(C`Padre::Help::XYZ\*(C'\fR that subclasses the \f(CW\*(C`Padre::Help\*(C'\fR module
and override 3 methods: \f(CW\*(C`help_init\*(C'\fR, \f(CW\*(C`help_list\*(C'\fR and \f(CW\*(C`help_render\*(C'\fR.
.PP
In the class representing the Document (\f(CW\*(C`Padre::Document::XYZ\*(C'\fR) one should override the
\&\f(CW\*(C`get_help_provider\*(C'\fR method and return an object of the help provide module.
In our case it should contain
.PP
.Vb 2
\&        require Padre::Help::XYZ;
\&        return Padre::Help::XYZ\->new;
.Ve
.PP
(\s-1TO DO:\s0 Maybe it should only return the name of the module)
.PP
The \f(CW\*(C`help_init\*(C'\fR method is called by the new method of \f(CW\*(C`Padre::Help\*(C'\fR once for every
document of \f(CW\*(C`XYZ\*(C'\fR kind. (\s-1TO DO:\s0 maybe it should be only once for every document type, and not
once for every document of that type).
.PP
\&\f(CW\*(C`help_list\*(C'\fR should return a reference to an array holding the possible strings the system can
provide help for.
.PP
\&\f(CW\*(C`help_render\*(C'\fR is called by one of the keywords, it should return the \s-1HTML\s0 to be displayed
as help and another string which is the location of the help. Usually a path to a file
that will be used in the title of the window.