use strict;
use warnings;
-our @ISA;
+use UNIVERSAL::require;
+use Maypole;
+use Maypole::Config;
+
+our $VERSION = '2.11';
sub import {
- my ( $self, @plugins ) = @_;
- return unless $plugins[0];
- my $caller=caller(0);
- no strict 'refs';
- push @{"${caller}::ISA"}, $self;
- "Maypole::$_"->require && unshift @ISA, "Maypole::$_" foreach (@plugins);
-}
+ shift; # not interested in this - we manipulate the caller's @ISA directly
+ my @plugins = @_;
+ my $caller = caller(0);
+
+ my $frontend = 'Apache::MVC' if $ENV{MOD_PERL};
+
+ $frontend = 'Maypole::HTTPD::Frontend' if $ENV{MAYPOLE_HTTPD};
+
+ my $masonx;
+ if ( grep { /^MasonX$/ } @plugins )
+ {
+ $masonx++;
+ @plugins = grep { ! /^MasonX$/ } @plugins;
+ $frontend = 'MasonX::Maypole';
+ }
+
+ $frontend ||= 'CGI::Maypole';
+
+ $frontend->require or die "Loading $frontend frontend failed: $@";
-if ( $ENV{MOD_PERL} ) {
- require Apache::MVC;
- push @ISA , qw(Apache::MVC);
-}
-else {
- require CGI::Maypole;
- push @ISA , qw(CGI::Maypole);
+ my $autosetup=0;
+ my $autoinit=0;
+ my @plugin_modules;
+
+ foreach (@plugins)
+ {
+ if (/^\-Setup$/) { $autosetup++; }
+ elsif (/^\-Init$/) { $autoinit++ }
+ elsif (/^\-Debug(\d*)$/) {
+ my $d = $1 || 1;
+ no strict 'refs';
+ *{"$caller\::debug"} = sub { $d };
+ warn "Debugging (level $d) enabled for $caller";
+ }
+ elsif (/^-.*$/) { warn "Unknown flag: $_" }
+ else {
+ my $plugin = "Maypole::Plugin::$_";
+ if ($plugin->require) {
+ push @plugin_modules, "Maypole::Plugin::$_";
+ warn "Loaded plugin: $plugin for $caller"
+ if $caller->can('debug') && $caller->debug;
+ } else {
+ die qq(Loading plugin "$plugin" for $caller failed: )
+ . $UNIVERSAL::require::ERROR;
+ }
+ }
+ }
+
+ no strict 'refs';
+ push @{"${caller}::ISA"}, @plugin_modules, $frontend;
+ $caller->config(Maypole::Config->new);
+ $caller->config->masonx({}) if $masonx;
+ $caller->setup() if $autosetup;
+ $caller->init() if $autosetup && $autoinit;
}
1;
=head1 NAME
-Maypole::Application - all in wonder front-end
+Maypole::Application - Universal Maypole Frontend
=head1 SYNOPSIS
- use base 'Maypole::Application';
+ use Maypole::Application;
+
+ use Maypole::Application qw(Config::YAML);
+
+ use Maypole::Application qw(-Debug Config::YAML -Setup);
+
+ use Maypole::Application qw(Config::YAML Loader -Setup -Debug);
+
+ use Maypole::Application qw(-Debug2 MasonX AutoUntaint);
=head1 DESCRIPTION
-The all in wonder front-end.
+This is a universal frontend for mod_perl1, mod_perl2, HTML::Mason and CGI.
+
+Automatically determines the appropriate frontend for your environment (unless
+you want to use L<MasonX::Maypole>, in which case include C<MasonX> in the
+arguments).
+
+Loads plugins supplied in the C<use> statement.
+
+Responds to flags supplied in the C<use> statement.
+
+Initializes the application's configuration object.
+
+You can omit the Maypole::Plugin:: prefix from plugins. So
+Maypole::Plugin::Config::YAML becomes Config::YAML.
+
+ use Maypole::Application qw(Config::YAML);
+
+You can also set special flags like -Setup, -Debug and -Init.
+
+ use Maypole::Application qw(-Debug Config::YAML -Setup);
+
+The position of plugins in the chain is important, because they are
+loaded/executed in the same order they appear.
+
+=head1 FRONTEND
+
+Under mod_perl (1 or 2), selects L<Apache::MVC>.
+
+Otherwise, selects L<CGI::Maypole>.
+
+If C<MasonX> is specified, sets L<MasonX::Maypole> as the frontend. This
+currently also requires a mod_perl environment.
+
+=head1 FLAGS
+
+=over
+
+=item -Setup
+
+ use Maypole::Application qw(-Setup);
+
+is equivalent to
+
+ use Maypole::Application;
+ MyApp->setup;
+
+Note that no options are passed to C<setup()>. You must ensure that the
+required model config parameters are set in C<MyApp-E<gt>config>. See
+L<Maypole::Config> for more information.
+
+=item -Init
+
+ use Maypole::Application qw(-Setup -Init);
+
+is equivalent to
+
+ use Maypole::Application;
+ MyApp->setup;
+ MyApp->init;
+
+Note that the C<-Setup> flag is required for the C<-Init> flag to work.
+
+In persistent environments (e.g. C<mod_perl>), it is useful to call C<init>
+once in the parent server, rather than at the beginning of the first request
+to each child server, in order to share the view code loaded during C<init>.
+Note that you must supply all the config data to your app before calling
+C<setup> and C<init>, probably by using one of the C<Maypole::Plugin::Config::*>
+plugins.
+
+=item -Debug
+
+ use Maypole::Application qw(-Debug);
+
+is equivalent to
+
+ use Maypole::Application;
+ sub debug { 1 }
+
+You can specify a higher debug level by saying C<-Debug2> etc.
+
+=back
=head1 AUTHOR
=head1 LICENSE
You may distribute this code under the same terms as Perl itself.
+
+=cut