NAME

       CGI::Test::Form::Widget::Button - Abstract representation of a button

SYNOPSIS

        # Inherits from CGI::Test::Form::Widget

DESCRIPTION

       This class is the abstract representation of a button, i.e. a submit button, an image
       button, a reset button or a plain button.

       Pressing a button is achieved by calling "press()" on it, which returns a new page, as a
       "CGI::Test::Page" object, or "undef" if pressing had no round-trip effect.

INTERFACE

       The interface is the same as the one described in CGI::Test::Form::Widget, with the
       following additions:

   Attributes
       "is_pressed"
           True when the button is pressed.

   Attribute Setting
       "press"
           Press the button, setting "is_pressed" to true.

           If the button is a reset button ("is_reset" is true), all widgets are reset to their
           initial state, and "undef" is returned.

           If the button is a submit button ("is_submit" is true), then a GET/POST request is
           issued as appropriate and the reply is made available through a "CGI::Test::Page"
           object.

           Otherwise, the button pressing is ignored, a warning is issued from the perspective of
           the caller, via "carp", and "undef" is returned.

   Widget Classification Predicates
       There is an additional set of predicates to distinguish between the various buttons:

       "is_plain"
           Returns true for a plain button, i.e. a button that has no submit/reset effects.
           Usually, those buttons are linked to a script, but "CGI::Test" does not support
           scripting yet.

       "is_reset"
           Returns true for reset buttons.

       "is_submit"
           Returns true for submit buttons, whether they are really shown as buttons or as
           images.  A submit button will cause an HTTP request to be issued in response to its
           being pressed.

   Miscellaneous Features
       Although documented, those features are more targetted for internal use...

       "set_is_pressed" flag
           Change the pressed status of the button, to the value of flag.  It does not raise any
           other side effect, like submitting an HTTP request if the button is a submit button.

           You should probably use the "press" convenience routine instead of calling this
           feature directly.

AUTHORS

       The original author is Raphael Manfredi.

       Steven Hilton was long time maintainer of this module.

       Current maintainer is Alexander Tokarev <tokarev@cpan.org>.

SEE ALSO

       CGI::Test::Form::Widget(3), CGI::Test::Form::Widget::Button::Image(3),
       CGI::Test::Form::Widget::Button::Plain(3), CGI::Test::Form::Widget::Button::Reset(3),
       CGI::Test::Form::Widget::Button::Submit(3).