release-1.10release-1.4release-1.5release-1.6release-1.7release-1.8release-1.9
Last change
on this file since fa0114b was
ee183be,
checked in by Nelson Elhage <nelhage@mit.edu>, 15 years ago
|
Break perlwrap.pm into multiple files.
Break perlwrap.pm out into .pm files in perl/lib. With this commit, we
keep perlwrap.pm around and still load it as before. The next commit
will delete perlwrap.pm and start loading perl files directly from
disk at runtime.
|
-
Property mode set to
100644
|
File size:
1.1 KB
|
Rev | Line | |
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[ee183be] | 1 | use strict; |
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| 2 | use warnings; |
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| 3 | |
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| 4 | package BarnOwl::Hook; |
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| 5 | |
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| 6 | =head1 BarnOwl::Hook |
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| 7 | |
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| 8 | =head1 DESCRIPTION |
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| 9 | |
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| 10 | A C<BarnOwl::Hook> represents a list of functions to be triggered on |
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| 11 | some event. C<BarnOwl> exports a default set of these (see |
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| 12 | C<BarnOwl::Hooks>), but can also be created and used by module code. |
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| 13 | |
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| 14 | =head2 new |
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| 15 | |
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| 16 | Creates a new Hook object |
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| 17 | |
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| 18 | =cut |
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| 19 | |
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| 20 | sub new { |
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| 21 | my $class = shift; |
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| 22 | return bless [], $class; |
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| 23 | } |
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| 24 | |
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| 25 | =head2 run [ARGS] |
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| 26 | |
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| 27 | Calls each of the functions registered with this hook with the given |
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| 28 | arguments. |
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| 29 | |
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| 30 | =cut |
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| 31 | |
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| 32 | sub run { |
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| 33 | my $self = shift; |
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| 34 | my @args = @_; |
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| 35 | return map {$self->_run($_,@args)} @$self; |
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| 36 | } |
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| 37 | |
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| 38 | sub _run { |
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| 39 | my $self = shift; |
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| 40 | my $fn = shift; |
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| 41 | my @args = @_; |
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| 42 | no strict 'refs'; |
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| 43 | return $fn->(@args); |
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| 44 | } |
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| 45 | |
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| 46 | =head2 add SUBREF |
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| 47 | |
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| 48 | Registers a given subroutine with this hook |
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| 49 | |
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| 50 | =cut |
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| 51 | |
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| 52 | sub add { |
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| 53 | my $self = shift; |
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| 54 | my $func = shift; |
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| 55 | die("Not a coderef!") unless ref($func) eq 'CODE' || !ref($func); |
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| 56 | return if grep {$_ eq $func} @$self; |
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| 57 | push @$self, $func; |
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| 58 | } |
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| 59 | |
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| 60 | =head2 clear |
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| 61 | |
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| 62 | Remove all functions registered with this hook. |
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| 63 | |
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| 64 | =cut |
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| 65 | |
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| 66 | sub clear { |
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| 67 | my $self = shift; |
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| 68 | @$self = (); |
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| 69 | } |
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| 70 | |
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| 71 | |
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| 72 | 1; |
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