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=head1 NAME |
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|
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Mozilla::Plugin - embed perl into mozilla/netscape. |
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|
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=head1 SYNOPSIS |
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|
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use Mozilla::Plugin; |
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|
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=head1 DESCRIPTION |
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|
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sorry... |
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|
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=over 4 |
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|
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=cut |
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|
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package Mozilla::Plugin; |
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|
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use base Exporter; |
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#use XSLoader; |
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|
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$VERSION = 0.12; |
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@EXPORT = qw(); |
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|
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warn "in module [@ARGV]";#d# |
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|
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#XSLoader::load __PACKAGE__, $VERSION; |
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use Data::Dumper; |
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|
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my $data; |
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|
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sub snd_cmd($) { |
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$data = pack "NN", 0, ord($_[0]); |
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} |
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|
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sub snd_i32($) { |
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$data .= pack "N", $_[0]; |
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} |
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|
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sub snd_blk($) { |
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$data .= pack "NA*", length($_[0]), $_[0]; |
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} |
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|
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sub snd_snd($) { |
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substr ($data, 0, 4) = pack "N", length $data; |
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length ($data) == syswrite $_[0], $data; |
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} |
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|
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sub snd_dyn { |
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length ($_[1]) == syswrite $_[0], $_[1]; |
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} |
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|
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sub rcv_cmd { |
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my $buf; |
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4 == sysread $_[0], $buf, 4 or exit; |
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my $len = unpack "N", $buf; |
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$len -= 4; |
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$len == sysread $_[0], $buf, $len or die; |
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|
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$data = substr $buf, 4; |
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|
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substr $buf, 3, 1; |
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} |
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|
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sub rcv_i32() { |
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my $i32 = unpack "N", $data; |
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$data = substr $data, 4; |
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$i32; |
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} |
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|
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sub rcv_blk() { |
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my $len = unpack "N", $data; |
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my $str = substr $data, 4, $len; |
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$data = substr $data, 4 + $len; |
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$str; |
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} |
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|
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=item my $fh = server_fh |
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|
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The design of this module is event-based. When the plug-in starts (there |
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is always just one interpreter) it spawns one perl interpreter which |
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will immediately go into a even loop. If you want to use your own event |
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loop (e.g. using the Gtk or Event modules) you need to register a file |
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input handler on the filehandle returned by C<server_fh> that calls |
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C<server_event> whenever there is input pending on C<server_fh>. This will |
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ensure proper operation of the plug-in. |
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|
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=item server_event |
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|
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Call this function whenever there is data available on the C<server_fh>. This function |
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might not return. |
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|
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Due to this design (flaw?), sharing of different toolkits using this |
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plug-in is difficult at best. Spawning a new perl interpreter for every |
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plug-in is also not very viable, so in the future one might be able to |
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specify a group on the embed statement (i.e. EMBED GROUP="gtk+"). |
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|
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=cut |
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|
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sub server_fh() { $FD1 } |
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|
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sub server_event() { |
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my $cmd = rcv_cmd $FD1; |
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|
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if ($cmd eq "I") { |
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rcv_i32 == 1 or die "protocol version mismatch\n"; |
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($IFACE, $OSNAME, $OSVERS) = (rcv_blk, rcv_blk, rcv_blk); |
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} elsif ($cmd eq "+") { |
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my ($objid, $type, $mode, $save, $argc) |
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= (rcv_i32, rcv_blk, rcv_i32, rcv_blk, rcv_i32); |
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my %args; |
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while ($argc--) { |
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my ($argn, $argv) = (rcv_blk, rcv_blk); |
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$args{$argn} = $argv; |
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} |
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|
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$_OBJ{$objid} = new Mozilla::Plugin |
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type => $type, |
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mode => $mode, |
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save => $save, |
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args => \%args; |
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|
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} elsif ($cmd eq "-") { |
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my $objid = rcv_i32; |
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snd_cmd "-"; |
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my $save = (delete $_OBJ{$objid})->save; |
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snd_i32 length $save; |
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snd_dyn $FD1, $save; |
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} else { |
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die "unknown command '$cmd' received"; |
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} |
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} |
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|
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sub mainloop { |
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server_event while 1; |
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} |
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|
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sub _main { |
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$LIBDIR = shift @ARGV; |
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$IN_MOZILLA = 1; |
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(shift @ARGV) =~ /^(\d+),(\d+)$/ or die "init arg error"; |
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my ($fd1, $fd2) = ($1, $2); |
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open $FD1, "+<&=$fd1"; binmode $FD1; |
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open $FD2, "+<&=$fd2"; binmode $FD2; |
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|
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mainloop; |
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} |
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|
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sub new { |
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my $class = shift; |
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bless { @_ }, $class; |
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} |
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|
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sub set_window { |
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warn "set_window: ".Dumper(\@_); |
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} |
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|
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sub save { |
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warn "save: ".Dumper(\@_); |
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"[save]"; |
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} |
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|
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sub DESTROY { |
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warn "DESTROY"; |
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} |
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|
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1; |
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|
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=back |
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|
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=head1 BUGS |
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|
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=head1 SEE ALSO |
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|
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L<PApp>. |
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|
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=head1 AUTHOR |
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|
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Marc Lehmann <pcg@goof.com> |
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http://www.goof.com/pcg/marc/ |
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|
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=cut |
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|
