#!/usr/bin/perl -W use strict; use Carp; use POE; use Term::Visual; sub MAX_SECS_BETWEEN_LINES () { 5 } sub MAX_SECS_BETWEEN_STATUS () { 60 } sub MAX_SECS_BETWEEN_STDERR () { 30 } my @alphabet = ('A'..'Z', 'a'..'z', '0'..'9'); my $vt = Term::Visual->new( Alias => "interface" ); $vt->set_palette( mycolor => "magenta on black", statcolor => "green on black", sockcolor => "cyan on black", ncolor => "white on black", st_frames => "bright cyan on blue", st_values => "bright white on blue", stderr_bullet => "bright white on red", stderr_text => "bright yellow on black", err_input => "bright white on red", help => "white on black", help_cmd => "bright white on black" ); my $window_id = $vt->create_window( Window_Name => "window_one", Status => { 0 => { format => "\0(st_frames)" . " [" . "\0(st_values)" . "%8.8s" . "\0(st_frames)" . "] " . "\0(st_values)" . "%s", fields => [qw( time name )] }, }, Buffer_Size => 1000, History_Size => 50, Title => "Title of window_one" ); POE::Session->create (inline_states => { _start => \&start_guts, got_term_input => \&handle_term_input, update_time => \&update_time, update_name => \&update_name, test_stderr => \&test_stderr, activity => \&activity, } ); $vt->print($window_id, "My Window ID is $window_id"); ## Initialize the back-end guts of the "client". sub start_guts { my ($kernel, $heap) = @_[KERNEL, HEAP]; # Tell the terminal to send me input as "got_term_input". $kernel->post( interface => send_me_input => "got_term_input" ); # Start updating the time. $kernel->yield( "update_time" ); $kernel->yield( "update_name" ); $kernel->yield( "test_stderr" ); $kernel->yield( "activity" ); } ### The main input handler for this program. This would be supplied ### by the guts of the client program. sub handle_term_input { # beep(); my ($kernel, $heap, $input, $exception) = @_[KERNEL, HEAP, ARG0, ARG1]; $vt->print($window_id, $input); } ### Update the time on the status bar. sub update_time { my ($kernel, $heap) = @_[KERNEL, HEAP]; # New time format. use POSIX qw(strftime); $vt->set_status_field( $window_id, time => strftime("%I:%M %p", localtime) ); # Schedule another time update for the next minute. This is more # accurate than using delay() because it schedules the update at the # beginning of the minute. $kernel->alarm( update_time => int(time() / 60) * 60 + 60 ); } sub update_name { my ($kernel, $heap) = @_[KERNEL, HEAP]; $vt->set_status_field( $window_id, name => $alphabet[rand @alphabet] x (rand(15) + 3) ); $kernel->delay( update_name => rand(MAX_SECS_BETWEEN_STATUS) ); } # Periodically test STDERR redirection. sub test_stderr { my $kernel = $_[KERNEL]; warn "generic stderr message: " . scalar(gmtime()) . " GMT"; $kernel->delay( test_stderr => rand(MAX_SECS_BETWEEN_STDERR) ); } # Simulate Screen Activity. sub activity { my $kernel = $_[KERNEL]; my @words; my $word_count = int(rand(29)) + 1; for (1..$word_count) { push @words, $alphabet[rand @alphabet] x (rand(10)+1); } my $input = shift(@words); foreach my $word (@words) { $input .= (" " x (rand(5)+1)) . $word; } $vt->print( $window_id, $input ); $kernel->delay( activity => rand(MAX_SECS_BETWEEN_LINES) ); } $poe_kernel->run(); $vt->shutdown; exit 0;