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|
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 cmd_clear_visual {
_clear_visual_region();
#refresh_visual_overlay();
Irssi::statusbar_items_redraw('input');
}
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();
}
|
