package CGI::Application::Plugin::DevPopup; { $CGI::Application::Plugin::DevPopup::VERSION = '1.08'; } use warnings; use strict; use base 'Exporter'; use HTML::Template; use CGI::Application 4.01; our @EXPORT = qw/ devpopup /; my ( $head, $script, $template ); # html stuff for our screen sub import { my $caller = scalar(caller); $caller->add_callback( 'postrun', \&_devpopup_output ) if $ENV{'CAP_DEVPOPUP_EXEC'}; $caller->new_hook('devpopup_report'); goto &Exporter::import; } sub devpopup { my $app = shift; # a cgiapp object my $dp = $app->param('__CAP_DEVPOPUP'); unless ($dp) { $dp = bless [], __PACKAGE__; $app->param( '__CAP_DEVPOPUP' => $dp ); } return $dp; } sub add_report { my $self = shift; # a devpopup object my %params = @_; $params{severity} ||= 'info'; push @$self, \%params; } sub _devpopup_output { my ( $self, $outputref ) = @_; return unless $self->header_type eq 'header'; # don't operate on redirects or 'none' my %props = $self->header_props; my ($type) = grep /type/i, keys %props; return if defined $type and # no type defaults to html, so we have work to do. $props{$type} !~ /html/i; # else skip any other types. my $devpopup = $self->devpopup; $self->call_hook( 'devpopup_report', $outputref ); # process our callback hook my $tmpl = HTML::Template->new( scalarref => \$template, die_on_bad_params => 0, loop_context_vars => 1, ); $tmpl->param( reports => $devpopup, app_class => ref($self), runmode => $self->get_current_runmode, ); my $o = _escape_js($tmpl->output); my $h = _escape_js($head); my $j = _escape_js($script . join($/, map { $_->{script} } grep exists $_->{script}, @$devpopup) ); my $js = qq{ }; # insert the js code before the body close, # if one exists if ( $$outputref =~ m!!i ) { $$outputref =~ s!!$js\n!i; } else { $$outputref .= $js; } } sub _escape_js { my $j = shift; $j =~ s/\r//g; $j =~ s/\\/\\\\/g; $j =~ s/"/\\"/g; $j =~ s/\n/\\n" + \n\t"/g; $j =~ s/script>/s" + "cript>/g; $j; } $head = < Devpopup results HEAD $script = <

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TMPL 1; # End of CGI::Application::Plugin::DevPopup __END__ =head1 NAME CGI::Application::Plugin::DevPopup - Runtime cgiapp info in a popup window =head1 VERSION version 1.08 =head1 SYNOPSIS =head2 End user information This module provides a plugin framework for displaying runtime information about your CGI::Application app in a popup window. A sample Timing plugin is provided to show how it works: BEGIN { $ENV{'CAP_DEVPOPUP_EXEC'} = 1; } # turn it on for real use CGI::Application::Plugin::DevPopup; use CGI::Application::Plugin::DevPopup::Timing; The rest of your application follows ... Now whenever you access a runmode, a window pops up over your content, showing information about how long the various stages have taken. Adding other CAP::DevPopup plugins will get you more information. A HTML::Tidy plugin showing you how your document conforms to W3C standards is available: see L. The output consists of a Table of Contents, and a bunch of reports. A rough translation into plain text could look like this: Devpopup report for My::App -> add_timing * Timings - Total runtime: 3.1178 sec. +-----------------------------------------------------------------------+ | Timings | +-----------------------------------------------------------------------+ | Application started at: Thu Sep 22 02:55:35 2005 | | From To Time taken | |-----------------------------------------------------------------------| | init prerun 0.107513 sec. | | prerun before expensive operation 0.000371 sec. | | before expensive operation after expensive operation 3.006688 sec. | | after expensive operation load_tmpl(dp.html) 0.000379 sec. | | load_tmpl(dp.html) postrun 0.002849 sec. | +-----------------------------------------------------------------------+ The reports expand and collapse by clicking on the ToC entry or the report header. =head2 Developer information Creating a new plugin for DevPopup is fairly simple. CAP::DevPopup registers a new callback point (named C), which it uses to collect output from your plugin. You can add a callback to that point, and return your formatted output from there. The callback has this signature: sub callback($cgiapp_class, $outputref) You pass your output to the devpopup object by calling $cgiapp_class->devpopup->add_report( title => $title, summary => $summary, report => $body, ); You are receiving $outputref, because DevPopup wants to be the last one to be called in the postrun callback. If you had wanted to act at postrun time, then please do so with this variable, and not through a callback at postrun. =head2 The C switch Since this is primarily a development plugin, and you wouldn't want it to run in your production code, an environment variable named CAP_DEVPOPUP_EXEC has to be set to 1 for this module to function, and it must be present at compile time. This means you should place it in a BEGIN{} block, or use SetEnv or PerlSetEnv (remember to set those before any PerlRequire or PerlModule lines). Absence of the environment variable turns this module into a no-op: while the plugin and its plugins are still loaded, they won't modify your output. =head1 Available Plugins =over 4 =item o L, L and L are bundled with this distribution. =item o L integrates with this module. =item o L integrates with this module. =back =head1 EXPORTS =over 4 =item * devpopup This method is the only one exported into your module, and can be used to access the underlying DevPopup object. See below for the methods that this object exposes. =back =head1 METHODS =over 4 =item * add_report( %fields ) Adds a new report about the current run of the application. The following fields are supported: =over 8 =item * title A short title for your report =item * summary An optional one- or two-line summary of your findings =item * report Your full output =item * severity An optional value specifying the importance of your report. Accepted values are qw/debug info warning error fatal/. This value is used to color-code the report headers. =item * script If you have custom javascript, then please pass it in through this field. Otherwise if it's embedded in your report, it will break the popup window. I will take care of the surrounding C<