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.\" ========================================================================
.\"
.IX Title "HTML::Widget::Element 3pm"
.TH HTML::Widget::Element 3pm "2013-10-29" "perl v5.18.1" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
HTML::Widget::Element \- Element Base Class
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 3
\&    my $e = $widget\->element( $type, $name, {disabled => \*(Aqdisabled\*(Aq} );
\&    $e\->name(\*(Aqbar\*(Aq);
\&    $e\->class(\*(Aqfoo\*(Aq);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
Element Base Class.
.SH "METHODS"
.IX Header "METHODS"
.SS "new"
.IX Subsection "new"
.SS "attributes"
.IX Subsection "attributes"
.SS "attrs"
.IX Subsection "attrs"
Arguments: \f(CW%attributes\fR
.PP
Arguments: \e%attributes
.PP
Return Value: \f(CW$element\fR
.PP
Arguments: none
.PP
Return Value: \e%attributes
.PP
Accepts either a list of key/value pairs, or a hash-ref.
.PP
.Vb 2
\&    $e\->attributes( $key => $value );
\&    $e\->attributes( { $key => $value } );
.Ve
.PP
Returns the \f(CW$element\fR object, to allow method chaining.
.PP
As of v1.10, passing a hash-ref no longer deletes current 
attributes, instead the attributes are added to the current attributes 
hash.
.PP
This means the attributes hash-ref can no longer be emptied using 
\&\f(CW\*(C`$e\->attributes( { } );\*(C'\fR. Instead, you may use 
\&\f(CW\*(C`%{ $e\->attributes } = ();\*(C'\fR.
.PP
As a special case, if no arguments are passed, the return value is a 
hash-ref of attributes instead of the object reference. This provides 
backwards compatibility to support:
.PP
.Vb 1
\&    $e\->attributes\->{key} = $value;
.Ve
.PP
\&\*(L"attrs\*(R" is an alias for \*(L"attributes\*(R".
.SS "container"
.IX Subsection "container"
Arguments: \e%attributes
.PP
Return Value: \f(CW$container\fR
.PP
Creates a new \f(CW$container_class\fR. Defaults to HTML::Widget::Container.
.SS "id"
.IX Subsection "id"
Arguments: \f(CW$widget\fR
.PP
Return Value: \f(CW$id\fR
.PP
Creates a element id.
.SS "init"
.IX Subsection "init"
Arguments: \f(CW$widget\fR
.PP
Called once when \fIprocess()\fR gets called for the first time.
.SS "mk_error"
.IX Subsection "mk_error"
Arguments: \f(CW$widget\fR, \e@errors
.PP
Return Value: \f(CW$error\fR
.PP
Creates a new HTML::Widget::Error.
.SS "mk_input"
.IX Subsection "mk_input"
Arguments: \f(CW$widget\fR, \e%attributes, \e@errors
.PP
Return Value: \f(CW$input_tag\fR
.PP
Creates a new input tag.
.SS "mk_tag"
.IX Subsection "mk_tag"
Arguments: \f(CW$widget\fR, \f(CW$tagtype\fR, \e%attributes, \e@errors
.PP
Return Value: \f(CW$element_tag\fR
.PP
Creates a new tag.
.SS "mk_label"
.IX Subsection "mk_label"
Arguments: \f(CW$widget\fR, \f(CW$name\fR, \f(CW$comment\fR, \e@errors
.PP
Return Value: \f(CW$label_tag\fR
.PP
Creates a new label tag.
.SS "name"
.IX Subsection "name"
Arguments: \f(CW$name\fR
.PP
Return Value: \f(CW$name\fR
.PP
Contains the element name.
.SS "passive"
.IX Subsection "passive"
Arguments: \f(CW$bool\fR
.PP
Return Value: \f(CW$bool\fR
.PP
Defines if element gets automatically rendered.
.SS "prepare"
.IX Subsection "prepare"
Arguments: \f(CW$widget\fR
.PP
Called whenever \f(CW\*(C`$widget\->process\*(C'\fR gets called, before 
\&\f(CW\*(C`$element\->process\*(C'\fR.
.SS "process"
.IX Subsection "process"
Arguments: \e%params, \e@uploads
.PP
Return Value: \e@errors
.PP
Called whenever \f(CW\*(C`$widget\->process\*(C'\fR is called.
.PP
Returns an arrayref of HTML::Widget::Error objects.
.SS "containerize"
.IX Subsection "containerize"
Arguments: \f(CW$widget\fR, \f(CW$value\fR, \e@errors
.PP
Return Value: \f(CW$container_tag\fR
.PP
Containerize the element, label and error for later rendering. 
Uses HTML::Widget::Container by default, but this can be over-ridden on 
a class or instance basis via \*(L"container_class\*(R".
.SS "container_class"
.IX Subsection "container_class"
Arguments: \f(CW$class\fR
.PP
Return Value: \f(CW$class\fR
.PP
Contains the class to use for contain the element which then get rendered. Defaults to HTML::Widget::Container. \f(CW\*(C`container_class\*(C'\fR can be set at a class or instance level:
.PP
.Vb 2
\&  HTML::Widget::Element\->container_class(\*(AqMy::Container\*(Aq); 
\&  # Override default to custom class
\&  
\&  HTML::Widget::Element::Password\->container_class(undef); 
\&  # Passwords use the default class
\&   
\&  $w\->element(\*(AqTextfield\*(Aq)\->name(\*(Aqfoo\*(Aq)\->container_class\->(\*(AqMy::Other::Container\*(Aq); 
\&  # This element only will use My::Other::Container to render
.Ve
.SS "find_elements"
.IX Subsection "find_elements"
Return Value: \e@elements
.PP
For non-block-container elements, simply returns a one-element list
containing this element.
.SS "new"
.IX Subsection "new"
.SS "allow_filter"
.IX Subsection "allow_filter"
Used by \f(CW\*(C`$widget\->filter_all\*(C'\fR. If false, the filter won't be added.
.PP
Default true.
.SS "allow_constraint"
.IX Subsection "allow_constraint"
Used by \f(CW\*(C`$widget\->constraint_all\*(C'\fR. If false, the filter won't be added.
.PP
Default true.
.SH "AUTHOR"
.IX Header "AUTHOR"
Sebastian Riedel, \f(CW\*(C`sri@oook.de\*(C'\fR
.SH "LICENSE"
.IX Header "LICENSE"
This library is free software, you can redistribute it and/or modify it under
the same terms as Perl itself.