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Diffstat (limited to 'ido-mode/ido_switcher.pl')
| -rw-r--r-- | ido-mode/ido_switcher.pl | 271 |
1 files changed, 271 insertions, 0 deletions
diff --git a/ido-mode/ido_switcher.pl b/ido-mode/ido_switcher.pl new file mode 100644 index 0000000..132848d --- /dev/null +++ b/ido-mode/ido_switcher.pl @@ -0,0 +1,271 @@ +# Search and select windows similar to ido-mode for emacs +# +# INSTALL: +# +# This script requires that you have first installed and loaded 'uberprompt.pl' +# Uberprompt can be downloaded from: +# +# http://github.com/shabble/irssi-scripts/raw/master/prompt_info/uberprompt.pl +# +# and follow the instructions at the top of that file for installation. +# +# USAGE: +# +# * Setup: /bind ^R /history_search_start +# +# * Then type ctrl-R and type what you're searching for +# +# * You can cycle through multiple matches with ^R (older matches), and +# ^S (newer matches) +# +# Based in part on window_switcher.pl script Copyright 2007 Wouter Coekaerts +# <coekie@irssi.org> +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + +use strict; +use Irssi; +use Irssi::TextUI; +use Data::Dumper; + +use vars qw($VERSION %IRSSI); +$VERSION = '2.0'; +%IRSSI = + ( + authors => 'Tom Feist, Wouter Coekaerts', + contact => 'shabble+irssi@metavore.org, shabble@#irssi/freenode', + name => 'rl_history_search', + description => 'Search within your typed history as you type' + . ' (like ctrl-R in readline applications)', + license => 'GPLv2 or later', + url => 'http://github.com/shabble/irssi-scripts/tree/master/history-search/', + changed => '24/7/2010' + ); + + +# TODO: +# C-g - cancel +# C-spc - narrow +# flex matching (on by default, but optional) +# server/network narrowing +# colourised output (via uberprompt) +# C-r / C-s rotate matches + + +my $search_str = ''; +my $search_active = 0; + +my @history_cache = (); +my @search_matches = (); +my $match_index = 0; + + +my $DEBUG_ENABLED = 0; +sub DEBUG () { $DEBUG_ENABLED } + +# check we have uberprompt loaded. + +sub script_is_loaded { + my $name = shift; + print "Checking if $name is loaded" if DEBUG; + no strict 'refs'; + my $retval = defined %{ "Irssi::Script::${name}::" }; + use strict 'refs'; + + return $retval; +} + +unless (script_is_loaded('uberprompt')) { + print "This script requires 'uberprompt.pl' in order to work. " + . "Attempting to load it now..."; + Irssi::signal_add('script error', \&load_uberprompt_failed); + Irssi::command("script load uberprompt.pl"); + unless(script_is_loaded('uberprompt')) { + load_uberprompt_failed("File does not exist"); + } + history_init(); +} + +sub load_uberprompt_failed { + Irssi::signal_remove('script error', \&load_prompt_failed); + print "Script could not be loaded. Script cannot continue. " + . "Check you have uberprompt.pl installed in your path and " + . "try again."; + die "Script Load Failed: " . join(" ", @_); +} + +sub history_init { + Irssi::settings_add_bool('history_search', 'histsearch_debug', 0); + + Irssi::command_bind('history_search_start', \&history_search); + + Irssi::signal_add ('setup changed' => \&setup_changed); + Irssi::signal_add_first('gui key pressed' => \&handle_keypress); + + setup_changed(); +} + +sub setup_changed { + $DEBUG_ENABLED = Irssi::settings_get_bool('histsearch_debug'); +} + + +sub history_search { + $search_active = 1; + $search_str = ''; + $match_index = -1; + + @history_cache = Irssi::active_win()->get_history_lines(); + @search_matches = (); + + update_history_prompt(); +} + +sub history_exit { + $search_active = 0; + Irssi::signal_emit('change prompt', '', 'UP_INNER'); +} + +sub update_history_prompt { + my $col = scalar(@search_matches) ? '%g' : '%r'; + Irssi::signal_emit('change prompt', + ' reverse-i-search: `' . $col . $search_str + . '%n' . "'", + 'UP_INNER'); +} + +sub update_history_matches { + my ($match_str) = @_; + $match_str = $search_str unless defined $match_str; + + my %unique; + my @matches = grep { m/\Q$match_str/i } @history_cache; + + @search_matches = (); + + # uniquify the results, whilst maintaining order. + foreach my $m (@matches) { + unless (exists($unique{$m})) { + # add them in reverse order. + unshift @search_matches, $m; + } + $unique{$m}++; + } + + print "updated matches: ", scalar(@search_matches), " ", + join(", ", @search_matches) if DEBUG; +} + +sub get_history_match { + return $search_matches[$match_index]; +} + +sub prev_match { + + $match_index++; + if ($match_index > $#search_matches) { + $match_index = 0; + } + print "index now: $match_index" if DEBUG; +} + +sub next_match { + + $match_index--; + if ($match_index < 0) { + $match_index = $#search_matches; + } + print "index now: $match_index" if DEBUG; +} + +sub update_input { + my $match = get_history_match(); + Irssi::gui_input_set($match); + Irssi::gui_input_set_pos(length $match); +} + +sub handle_keypress { + my ($key) = @_; + + return unless $search_active; + + if ($key == 10) { # enter + print "selecting history and quitting" if DEBUG; + history_exit(); + return; + } + + if ($key == 18) { # Ctrl-R + print "skipping to prev match" if DEBUG; + prev_match(); + update_input(); + update_history_prompt(); + Irssi::signal_stop(); # prevent the bind from being re-triggered. + return; + } + + if ($key == 19) { # Ctrl-S + print "skipping to next match" if DEBUG; + next_match(); + update_input(); + update_history_prompt(); + + Irssi::signal_stop(); + return; + } + + if ($key == 7) { # Ctrl-G + print "aborting search" if DEBUG; + history_exit(); + + # cancel empties the inputline. + Irssi::gui_input_set(''); + Irssi::gui_input_set_pos(0); + + Irssi::signal_stop(); + return; + } + + if ($key == 127) { # DEL + + if (length $search_str) { + $search_str = substr($search_str, 0, -1); + print "Deleting char, now: $search_str" if DEBUG; + } + update_history_matches(); + update_history_prompt(); + update_input(); + + Irssi::signal_stop(); + return; + } + + # TODO: handle esc- sequences and arrow-keys? + + if ($key >= 32) { # printable + $search_str .= chr($key); + + update_history_matches(); + update_history_prompt(); + update_input(); + + Irssi::signal_stop(); + return; + } + + # any other key exits, for now. + history_exit(); + #Irssi::signal_stop(); +} |