mirror of
https://github.com/pragma-/pbot.git
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86 lines
2.5 KiB
Perl
86 lines
2.5 KiB
Perl
# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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package PBot::EventDispatcher;
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use warnings;
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use strict;
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use feature 'unicode_strings';
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use IO::Select;
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use Carp ();
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sub new {
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Carp::croak("Options to " . __FILE__ . " should be key/value pairs, not hash reference") if ref($_[1]) eq 'HASH';
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my ($class, %conf) = @_;
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my $self = bless {}, $class;
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$self->initialize(%conf);
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return $self;
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}
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sub initialize {
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my ($self, %conf) = @_;
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$self->{pbot} = delete $conf{pbot} // Carp::croak("Missing pbot reference in " . __FILE__);
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$self->{handlers} = { any => [] };
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}
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sub register_handler {
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my ($self, $event_type, $sub) = @_;
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my ($package, $filename, $line, $subroutine) = caller(1);
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my $info = "$filename:$line; $subroutine";
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$self->{pbot}->{logger}->log("Adding handler for $event_type: $info\n") if $self->{pbot}->{registry}->get_value('eventdispatcher', 'debug');
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push @{$self->{handlers}->{$event_type}}, [$sub, $info];
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}
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sub dispatch_event {
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my ($self, $event_type, $event_data) = @_;
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my $ret = undef;
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if (exists $self->{handlers}->{$event_type}) {
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for (my $i = 0; $i < @{$self->{handlers}->{$event_type}}; $i++) {
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my $ref = @{$self->{handlers}->{$event_type}}[$i];
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my ($handler, $info) = ($ref->[0], $ref->[1]);
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$self->{pbot}->{logger}->log("Dispatching $event_type to handler $info\n") if $self->{pbot}->{registry}->get_value('eventdispatcher', 'debug');
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eval {
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$ret = $handler->($event_type, $event_data);
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};
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if ($@) {
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chomp $@;
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$self->{pbot}->{logger}->log("Error in event handler: $@\n");
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$self->{pbot}->{logger}->log("Removing handler.\n");
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splice @{$self->{handlers}->{$event_type}}, $i--, 1;
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}
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return $ret if $ret;
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}
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}
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for (my $i = 0; $i < @{$self->{handlers}->{any}}; $i++) {
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my $ref = @{$self->{handlers}->{any}}[$i];
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my ($handler, $info) = ($ref->[0], $ref->[1]);
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$self->{pbot}->{logger}->log("Dispatching any to handler $info\n") if $self->{pbot}->{registry}->get_value('eventdispatcher', 'debug');
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eval {
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$ret = $handler->($event_type, $event_data);
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};
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if ($@) {
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chomp $@;
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$self->{pbot}->{logger}->log("Error in event handler: $@\n");
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$self->{pbot}->{logger}->log("Removing handler.\n");
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splice @{$self->{handlers}->{any}}, $i--, 1;
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}
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return $ret if $ret;
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}
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return $ret;
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}
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1;
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