use strict; use warnings; use Irssi; use Irssi::TextUI; # for sbar_items_redraw use Data::Dumper; our $VERSION = "0.1"; our %IRSSI = ( authors => "shabble", contact => 'shabble+irssi@metavore.org, shabble@#irssi/Freenode', name => "prompt_info", description => "Helper script for dynamically adding text " . "into the input-bar prompt.", license => "Public Domain", changed => "24/7/2010" ); sub DEBUG () { 1 } #sub DEBUG () { 0 } my $region_active = 0; my ($term_w, $term_h) = (0, 0); # visual region selected. my ($region_start, $region_end) = (0, 0); my $region_content = ''; sub update_terminal_size { my @stty_data = qx/stty -a/; my $line = $stty_data[0]; # linux # speed 38400 baud; rows 36; columns 126; line = 0; if ($line =~ m/rows (\d+); columns (\d+);/) { $term_h = $1; $term_w = $2; # osx # speed 9600 baud; 40 rows; 235 columns; } elsif ($line =~ m/(\d+) rows; (\d+) columns;/) { $term_h = $1; $term_w = $2; } else { # guess? $term_h = 24; $term_w = 80; } print "Terminal detected as $term_w cols by $term_h rows" if DEBUG; } sub visual_subcmd_handler { my ($data, $server, $item) = @_; $data =~ s/\s+$//g; # strip trailing whitespace. Irssi::command_runsub('visual', $data, $server, $item); } sub init { # misc faff Irssi::command_bind('visual', \&visual_subcmd_handler); Irssi::command_bind('visual toggle', \&cmd_toggle_visual); Irssi::command_bind('visual clear', \&cmd_clear_visual); Irssi::command("^BIND ^F /visual toggle"); Irssi::command("^BIND ^G /visual clear"); Irssi::command_bind 'print_test', sub { Irssi::gui_printtext(0, 0, '%8hello there%n'); }; # redraw interception Irssi::signal_add_last('command redraw', \&augment_redraw); Irssi::signal_add_first('gui key pressed', \&ctrl_l_intercept); # for updating the overlay. Irssi::signal_add_last ('gui key pressed', \&key_pressed); # things to refresh the overlay for. Irssi::signal_add('window changed', \&uberprompt_refresh); Irssi::signal_add('window name changed', \&uberprompt_refresh); Irssi::signal_add('window changed automatic', \&uberprompt_refresh); Irssi::signal_add('window item changed', \&uberprompt_refresh); Irssi::signal_add('terminal resized', \&update_terminal_size); # so we know where the bottom line is update_terminal_size(); } sub augment_redraw { print "Redraw called" if DEBUG; uberprompt_refresh(); Irssi::timeout_add_once(10, \&refresh_visual_overlay, 0); } sub cmd_toggle_visual { $region_active = not $region_active; if ($region_active) { $region_start = _pos(); $region_end = 0; # reset end marker. print "visual mode started at $region_start" if DEBUG; } else { $region_end = _pos(); print "Visual mode ended at $region_end" if DEBUG; if ($region_end > $region_start) { my $input = Irssi::parse_special('$L', 0, 0); my $str = substr($input, $region_start, $region_end - $region_start); print "Region selected: $str" if DEBUG; } else { print "Invalid region selection: [ $region_start - $region_end ]" if DEBUG; $region_start = $region_end = 0; } cmd_clear_visual(); } } sub ctrl_l_intercept { my $key = shift; if ($key == 12) { # C-l print "C-l pressed" if DEBUG; Irssi::command("redraw"); Irssi::signal_stop(); } elsif ($key == 10) { # RET _clear_visual_region(); } } sub key_pressed { # this handler needs to be last so the actual character is printed by irssi # before we overlay on it. Otherwise things are all a bit off-by-1 return unless $region_active; refresh_visual_overlay(); } sub _clear_visual_region { print "Clearing Region markers" if DEBUG; $region_end = 0; $region_start = 0; } sub refresh_visual_overlay { my $end_pos = $region_end; $end_pos ||= _pos(); # if not set, take current position as end. my $len = $end_pos - $region_start; return unless $len; # no point drawing an empty overlay my $input = Irssi::parse_special('$L'); my $offset = $prompt_item->{size} + $region_start; my $text = substr($input, $region_start, $len); print "printing '$text' at $offset [$region_start, $end_pos] ($len)" if DEBUG; $text = '%8' . $text . '%8'; _draw_overlay($offset, $text, $len); } sub _draw_overlay { my ($offset, $text, $len) = @_; Irssi::gui_printtext($offset, $term_h, $text); } sub _pos { return Irssi::gui_input_get_pos(); }