+ Use HTTP::Headers for input/output headers. Add appropriate unit tests.

[maypole.git] / lib / Maypole / Application.pm

diff --git a/lib/Maypole/Application.pm b/lib/Maypole/Application.pm
index 2727c9a062a7f5d5cc74319c7fa925feadf087fc..c10221a8784bbf36be6cae136b523cd1f81ec23f 100644 (file)
--- a/lib/Maypole/Application.pm
+++ b/lib/Maypole/Application.pm
@@ -2,36 +2,99 @@ package Maypole::Application;
 
 use strict;
 use warnings;
+use UNIVERSAL::require;
+use Maypole;
+use Maypole::Config;
 
-if ( $ENV{MOD_PERL} ) {
-    require mod_perl;
-    if ( $mod_perl::VERSION >= 1.99 ) {
-        require Apache2::MVC;
-        our @ISA = qw(Apache2::MVC);
-    }
-    else {
-        require Apache::MVC;
-        our @ISA = qw(Apache::MVC);
+our @ISA;
+our $VERSION = '2.05';
+
+sub import {
+    my ( $self, @plugins ) = @_;
+    my $caller = caller(0);
+    no strict 'refs';
+    push @{"${caller}::ISA"}, $self;
+    my $autosetup=0;
+    foreach (sort @plugins) {
+        if    (/^\-Setup$/) { $autosetup++; }
+        elsif (/^\-Debug$/) {
+            *{"$caller\::debug"} = sub { 1 };
+            warn "Debugging enabled";
+        }
+        elsif (/^-.*$/) { warn "Unknown flag: $_" }
+        else {
+            # The plugin caller should be our application class
+            eval "package $caller; require Maypole::Plugin::$_";
+            if ($@) { warn qq(Loading plugin "Maypole::Plugin::$_" failed: $@) }
+            else {
+                warn "Loaded plugin: Maypole::Plugin::$_" if $caller->debug;
+                unshift @ISA, "Maypole::Plugin::$_";
+            }
+        }
     }
+
+    $caller->config(Maypole::Config->new);
+    $caller->setup() if $autosetup;
+}
+
+if ( $ENV{MOD_PERL} ) {
+    Apache::MVC->require or die "Loading Apache frontend failed: $@";
+    push @ISA, 'Apache::MVC';
 }
 else {
-    require CGI::Maypole;
-    our @ISA = qw(CGI::Maypole);
+    CGI::Maypole->require or die "Loading CGI frontend failed: $@";
+    push @ISA, 'CGI::Maypole';
 }
 
 1;
 
 =head1 NAME
 
-Maypole::Application - all in wonder front-end
+Maypole::Application - Maypole Universal 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);
 
 =head1 DESCRIPTION
 
-The all in wonder front-end.
+This is a universal frontend for mod_perl1, mod_perl2 and CGI.
+
+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 and -Debug.
+
+    use Maypole::Application qw(-Debug Config::YAML -Setup);
+
+The position of plugins and flags in the chain is important,
+because they are loaded/executed in the same order they appear.
+
+=head2 -Setup
+
+    use Maypole::Application qw(-Setup);
+
+is equivalent to
+
+    use Maypole::Application;
+    MyApp->setup;
+
+=head2 -Debug
+
+    use Maypole::Application qw(-Debug);
+
+is equivalent to
+
+    use Maypole::Application;
+    sub debug { 1 }
 
 =head1 AUTHOR