558 lines
14 KiB
Perl
558 lines
14 KiB
Perl
#! perl -w
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# Author: Bert Muennich
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# Website: http://www.github.com/muennich/urxvt-perls
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# Version: 1.4
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# License: GPLv2
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# Use keyboard shortcuts to select and copy text.
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# Usage: put the following lines in your .Xdefaults:
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# URxvt.perl-ext-common: ...,keyboard-select
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# URxvt.keysym.M-Escape: perl:keyboard-select:activate
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# The following line overwrites the default Meta-s binding and allows to
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# activate keyboard-select directly in backward search mode:
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# URxvt.keysym:M-s: perl:keyboard-select:search
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# Use Meta-Escape to activate selection mode, then use the following keys:
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# h/j/k/l: Move cursor left/down/up/right (also with arrow keys)
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# g/G/0/^/$/H/M/L/f/F/;/,/w/W/b/B: More vi-like cursor movement keys
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# '/'/?: Start forward/backward search
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# n/N: Repeat last search, N: in reverse direction
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# Ctrl-f/b: Scroll down/up one screen
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# Ctrl-d/u: Scroll down/up half a screen
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# v/V/Ctrl-v: Toggle normal/linewise/blockwise selection
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# y/Return: Copy selection to primary buffer, Return: deactivate afterwards
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# q/Escape: Deactivate keyboard selection mode
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use strict;
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sub on_start{
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my ($self) = @_;
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$self->{patterns}{'w'} = qr/\w[^\w\s]|\W\w|\s\S/;
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$self->{patterns}{'W'} = qr/\s\S/;
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$self->{patterns}{'b'} = qr/.*(?:\w[^\w\s]|\W\w|\s\S)/;
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$self->{patterns}{'B'} = qr/.*\s\S/;
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()
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}
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sub on_user_command {
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my ($self, $cmd) = @_;
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if (not $self->{active}) {
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if ($cmd eq 'keyboard-select:activate') {
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activate($self);
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} elsif ($cmd eq 'keyboard-select:search') {
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activate($self, 1);
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}
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}
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()
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}
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sub key_press {
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my ($self, $event, $keysym, $char) = @_;
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my $key = chr($keysym);
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if ($self->{search}) {
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if ($keysym == 0xff1b) {
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if ($self->{search_mode}) {
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deactivate($self);
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} else {
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$self->{search} = '';
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status_area($self);
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}
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} elsif ($keysym == 0xff08) {
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$self->{search} = substr($self->{search}, 0, -1);
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if (not $self->{search} and $self->{search_mode}) {
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deactivate($self);
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} else {
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status_area($self);
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}
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} elsif ($keysym == 0xff0d) {
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my $txt = substr($self->{search}, 1);
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if ($txt) {
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$self->{pattern} = ($txt =~ m/[[:upper:]]/) ? qr/\Q$txt\E/ :
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qr/\Q$txt\E/i;
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} elsif ($self->{pattern}) {
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delete $self->{pattern};
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}
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$self->{search} = '';
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if (not find_next($self)) {
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if ($self->{search_mode}) {
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deactivate($self);
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} else {
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status_area($self);
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}
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}
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} elsif (length($char) > 0) {
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$self->{search} .= $self->locale_decode($char);
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status_area($self);
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}
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} elsif ($self->{move_to}) {
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if ($keysym == 0xff1b) {
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$self->{move_to} = 0;
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status_area($self);
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} elsif (length($char) > 0) {
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$self->{move_to} = 0;
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$self->{patterns}{'f-1'} = qr/^.*\Q$key\E/;
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$self->{patterns}{'f+1'} = qr/^.+?\Q$key\E/;
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move_to($self, ';');
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status_area($self);
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}
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} elsif ($keysym == 0xff1b || lc($key) eq 'q') {
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deactivate($self);
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} elsif ($key eq 'y' || $keysym == 0xff0d) {
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if ($self->{select}) {
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if ($self->{select} eq 'b') {
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$self->selection($self->{selection});
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$self->selection_grab($event->{time});
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} else {
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my ($br, $bc, $er, $ec) = calc_span($self);
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$ec = $self->line($er)->l if $self->{select} eq 'l';
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$self->selection_beg($br, $bc);
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$self->selection_end($er, $ec);
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$self->selection_make($event->{time});
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}
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if ($key eq 'y') {
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if ($self->{select} ne 'b') {
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$self->selection_beg(1, 0);
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$self->selection_end(1, 0);
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}
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$self->{select} = '';
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status_area($self);
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$self->want_refresh();
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} else {
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deactivate($self);
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}
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}
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} elsif ($key eq 'V') {
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toggle_select($self, 'l');
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} elsif ($key eq 'v') {
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if ($event->{state} & urxvt::ControlMask) {
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toggle_select($self, 'b');
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} else {
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toggle_select($self, 'n');
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}
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} elsif ($key eq 'k' || $keysym == 0xff52) {
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move_cursor($self, 'k');
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} elsif ($key eq 'j' || $keysym == 0xff54) {
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move_cursor($self, 'j');
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} elsif ($key eq 'h' || $keysym == 0xff51) {
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move_cursor($self, 'h');
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} elsif ($key eq 'l' || $keysym == 0xff53) {
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move_cursor($self, 'l');
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} elsif ('gG0^$HML' =~ m/\Q$key\E/ ||
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('fbdu' =~ m/\Q$key\E/ && $event->{state} & urxvt::ControlMask)) {
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move_cursor($self, $key);
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} elsif (lc($key) eq 'f') {
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$self->{move_to} = 1;
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$self->{move_dir} = $key eq 'F' ? -1 : 1;
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status_area($self, $key);
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} elsif (';,wWbB' =~ m/\Q$key\E/) {
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move_to($self, $key);
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} elsif ($key eq '/' || $key eq '?') {
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$self->{search} = $key;
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$self->{search_dir} = $key eq '?' ? -1 : 1;
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status_area($self);
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} elsif (lc($key) eq 'n') {
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find_next($self, $self->{search_dir} * ($key eq 'N' ? -1 : 1));
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}
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return 1;
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}
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sub move_cursor {
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my ($self, $key) = @_;
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my ($cr, $cc) = $self->screen_cur();
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my $line = $self->line($cr);
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if ($key eq 'k' && $line->beg > $self->top_row) {
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$cr = $line->beg - 1;
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} elsif ($key eq 'j' && $line->end < $self->nrow - 1) {
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$cr = $line->end + 1;
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} elsif ($key eq 'h' && $self->{offset} > 0) {
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$self->{offset} = $line->offset_of($cr, $cc) - 1;
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$self->{dollar} = 0;
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} elsif ($key eq 'l' && $self->{offset} < $line->l - 1) {
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++$self->{offset};
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} elsif ($key eq 'f' || $key eq 'd') {
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my $vs = $self->view_start() +
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($key eq 'd' ? $self->nrow / 2 : $self->nrow - 1);
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$vs = 0 if $vs > 0;
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$cr += $vs - $self->view_start($vs);
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} elsif ($key eq 'b' || $key eq 'u') {
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my $vs = $self->view_start() -
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($key eq 'u' ? $self->nrow / 2 : $self->nrow - 1);
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$vs = $self->top_row if $vs < $self->top_row;
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$cr += $vs - $self->view_start($vs);
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} elsif ($key eq 'g') {
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($cr, $self->{offset}) = ($self->top_row, 0);
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$self->{dollar} = 0;
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} elsif ($key eq 'G') {
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($cr, $self->{offset}) = ($self->nrow - 1, 0);
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$self->{dollar} = 0;
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} elsif ($key eq '0') {
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$self->{offset} = 0;
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$self->{dollar} = 0;
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} elsif ($key eq '^') {
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my $ltxt = $self->special_decode($line->t);
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while ($ltxt =~ s/^( *)\t/$1 . " " x (8 - length($1) % 8)/e) {}
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$self->{offset} = $ltxt =~ m/^ +/ ? $+[0] : 0;
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$self->{dollar} = 0;
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} elsif ($key eq '$') {
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my $co = $line->offset_of($cr, $cc);
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$self->{dollar} = $co + 1;
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$self->{offset} = $line->l - 1;
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} elsif ($key eq 'H') {
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$cr = $self->view_start();
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} elsif ($key eq 'M') {
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$cr = $self->view_start() + $self->nrow / 2;
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} elsif ($key eq 'L') {
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$cr = $self->view_start() + $self->nrow - 1;
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}
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$line = $self->line($cr);
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$cc = $self->{dollar} || $self->{offset} >= $line->l ? $line->l - 1 :
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$self->{offset};
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$self->screen_cur($line->coord_of($cc));
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status_area($self);
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$self->want_refresh();
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()
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}
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sub move_to {
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my ($self, $key) = @_;
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my ($cr, $cc) = $self->screen_cur();
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my $line = $self->line($cr);
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my ($dir, $pattern);
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my ($wrap, $found) = (0, 0);
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if ($key eq ';' || $key eq ',') {
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$dir = $self->{move_dir} * ($key eq ',' ? -1 : 1);
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$pattern = $self->{patterns}{sprintf('f%+d', $dir)};
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return if not $pattern;
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} else {
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if (lc($key) eq 'w') {
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$dir = 1;
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} else {
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$dir = -1;
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}
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$pattern = $self->{patterns}{$key};
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$wrap = 1;
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}
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if ($dir > 0) {
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my $text = substr($line->t, $self->{offset});
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if ($text =~ m/$pattern/) {
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$self->{offset} += $+[0] - 1;
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$found = 1;
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} elsif ($wrap && $line->end + 1 < $self->nrow) {
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$cr = $line->end + 1;
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$line = $self->line($cr);
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$self->{offset} = 0;
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$found = 1;
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}
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} elsif ($dir < 0) {
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NEXT: my $text = substr($line->t, 0, $self->{offset});
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if ($text =~ m/$pattern/) {
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$self->{offset} += $+[0] - length($text) - 1;
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$found = 1;
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} elsif ($wrap) {
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if ($self->{offset} > 0) {
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$self->{offset} = 0;
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$found = 1;
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} elsif ($line->beg > $self->top_row) {
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$cr = $line->beg - 1;
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$line = $self->line($cr);
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$self->{offset} = $line->l;
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goto NEXT;
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}
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}
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}
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if ($found) {
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$self->{dollar} = 0;
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$self->screen_cur($line->coord_of($self->{offset}));
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$self->want_refresh();
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}
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()
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}
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sub find_next {
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my ($self, $dir) = @_;
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return if not $self->{pattern};
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$dir = $self->{search_dir} if not $dir;
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my ($cr, $cc) = $self->screen_cur();
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my $line = $self->line($cr);
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my $offset = $line->offset_of($cr, $cc);
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my $text;
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my $found = 0;
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++$offset if $dir > 0;
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while (not $found) {
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if ($dir > 0) {
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$text = substr($line->t, $offset);
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if ($text =~ m/$self->{pattern}/) {
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$found = 1;
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$offset += $-[0];
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} else {
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last if $line->end >= $self->nrow;
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$line = $self->line($line->end + 1);
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$offset = 0;
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}
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} else {
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$text = substr($line->t, 0, $offset);
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if ($text =~ m/$self->{pattern}/) {
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$found = 1;
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$offset = $-[0] while $text =~ m/$self->{pattern}/g;
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} else {
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last if $line->beg <= $self->top_row;
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$line = $self->line($line->beg - 1);
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$offset = $line->l;
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}
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}
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}
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if ($found) {
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$self->{dollar} = 0;
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$self->{offset} = $offset;
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$self->screen_cur($line->coord_of($offset));
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status_area($self);
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$self->want_refresh();
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}
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return $found;
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}
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sub tt_write {
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return 1;
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}
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sub refresh {
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my ($self) = @_;
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my $reverse_cursor = $self->{select} ne 'l';
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my ($cr, $cc) = $self->screen_cur();
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if ($self->{select}) {
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my ($br, $bc, $er, $ec) = calc_span($self);
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if ($self->{select} eq 'b') {
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delete $self->{selection} if $self->{selection};
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my $co = $self->line($cr)->offset_of($cr, $cc);
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my $dollar = $self->{dollar} && $co >= $self->{dollar} - 1;
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my $r = $br;
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while ($r <= $er) {
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my $line = $self->line($r);
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if ($bc < $line->l) {
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$ec = $line->l if $dollar;
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$self->{selection} .= substr($line->t, $bc, $ec - $bc);
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my ($br, $bc) = $line->coord_of($bc);
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my ($er, $ec) = $line->coord_of($ec <= $line->l ? $ec : $line->l);
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$self->scr_xor_span($br, $bc, $er, $ec, urxvt::RS_RVid);
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} elsif ($r == $cr) {
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$reverse_cursor = 0;
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}
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$self->{selection} .= "\n" if $line->end < $er;
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$r = $line->end + 1;
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}
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} else {
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$self->scr_xor_span($br, $bc, $er, $ec, urxvt::RS_RVid);
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}
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if ($reverse_cursor) {
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# make the cursor visible again
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$self->scr_xor_span($cr, $cc, $cr, $cc + 1, urxvt::RS_RVid);
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}
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}
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# scroll the current cursor position into visible area
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if ($cr < $self->view_start()) {
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$self->view_start($cr);
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} elsif ($cr >= $self->view_start() + $self->nrow) {
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$self->view_start($cr - $self->nrow + 1);
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}
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()
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}
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sub activate {
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my ($self, $search) = @_;
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$self->{active} = 1;
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$self->{select} = '';
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$self->{dollar} = 0;
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$self->{move_to} = 0;
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if ($search) {
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$self->{search} = '?';
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$self->{search_dir} = -1;
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$self->{search_mode} = 1;
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} else {
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$self->{search} = '';
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$self->{search_mode} = 0;
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}
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($self->{oldcr}, $self->{oldcc}) = $self->screen_cur();
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$self->{old_view_start} = $self->view_start();
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$self->{old_pty_ev_events} = $self->pty_ev_events(urxvt::EV_NONE);
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my $line = $self->line($self->{oldcr});
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$self->{offset} = $line->offset_of($self->{oldcr}, $self->{oldcc});
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$self->selection_beg(1, 0);
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$self->selection_end(1, 0);
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$self->enable(
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key_press => \&key_press,
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refresh_begin => \&refresh,
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refresh_end => \&refresh,
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tt_write => \&tt_write,
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);
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if ($self->{offset} >= $line->l) {
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$self->{offset} = $line->l - 1;
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$self->screen_cur($line->coord_of($self->{offset}));
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$self->want_refresh();
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}
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$self->{overlay_len} = 0;
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status_area($self);
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()
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}
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sub deactivate {
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my ($self) = @_;
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$self->selection_beg(1, 0);
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$self->selection_end(1, 0);
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delete $self->{overlay} if $self->{overlay};
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delete $self->{selection} if $self->{selection};
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$self->disable("key_press", "refresh_begin", "refresh_end", "tt_write");
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$self->screen_cur($self->{oldcr}, $self->{oldcc});
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$self->view_start($self->{old_view_start});
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$self->pty_ev_events($self->{old_pty_ev_events});
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$self->want_refresh();
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$self->{active} = 0;
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()
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}
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sub status_area {
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my ($self, $extra) = @_;
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my ($stat, $stat_len);
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if ($self->{search}) {
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$stat_len = $self->ncol;
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$stat = $self->{search} . ' ' x ($stat_len - length($self->{search}));
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} else {
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if ($self->{select}) {
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$stat = "-V" . ($self->{select} ne 'n' ? uc($self->{select}) : "") . "- ";
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}
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if ($self->top_row == 0) {
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$stat .= "All";
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} elsif ($self->view_start() == $self->top_row) {
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$stat .= "Top";
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} elsif ($self->view_start() == 0) {
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$stat .= "Bot";
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|
} else {
|
|
$stat .= sprintf("%2d%%",
|
|
($self->top_row - $self->view_start) * 100 / $self->top_row);
|
|
}
|
|
|
|
$stat = "$extra $stat" if $extra;
|
|
$stat_len = length($stat);
|
|
}
|
|
|
|
if (!$self->{overlay} || $self->{overlay_len} != $stat_len) {
|
|
delete $self->{overlay} if $self->{overlay};
|
|
$self->{overlay} = $self->overlay(-1, -1, $stat_len, 1,
|
|
urxvt::OVERLAY_RSTYLE, 0);
|
|
$self->{overlay_len} = $stat_len;
|
|
}
|
|
|
|
$self->{overlay}->set(0, 0, $self->special_encode($stat));
|
|
$self->{overlay}->show();
|
|
|
|
()
|
|
}
|
|
|
|
|
|
sub toggle_select {
|
|
my ($self, $mode) = @_;
|
|
|
|
if ($self->{select} eq $mode) {
|
|
$self->{select} = '';
|
|
} else {
|
|
if (not $self->{select}) {
|
|
($self->{ar}, $self->{ac}) = $self->screen_cur();
|
|
}
|
|
$self->{select} = $mode;
|
|
}
|
|
|
|
status_area($self);
|
|
$self->want_refresh();
|
|
|
|
()
|
|
}
|
|
|
|
|
|
sub calc_span {
|
|
my ($self) = @_;
|
|
my ($cr, $cc) = $self->screen_cur();
|
|
my ($br, $bc, $er, $ec);
|
|
|
|
if ($self->{select} eq 'b') {
|
|
$br = $self->line($cr)->beg;
|
|
$bc = $self->line($cr)->offset_of($cr, $cc);
|
|
$er = $self->line($self->{ar})->beg;
|
|
$ec = $self->line($self->{ar})->offset_of($self->{ar}, $self->{ac});
|
|
($br, $er) = ($er, $br) if $br > $er;
|
|
($bc, $ec) = ($ec, $bc) if $bc > $ec;
|
|
} else {
|
|
if ($cr < $self->{ar}) {
|
|
($br, $bc, $er, $ec) = ($cr, $cc, $self->{ar}, $self->{ac});
|
|
} elsif ($cr > $self->{ar}) {
|
|
($br, $bc, $er, $ec) = ($self->{ar}, $self->{ac}, $cr, $cc);
|
|
} else {
|
|
($br, $er) = ($cr, $cr);
|
|
($bc, $ec) = $cc < $self->{ac} ? ($cc, $self->{ac}) : ($self->{ac}, $cc);
|
|
}
|
|
}
|
|
|
|
if ($self->{select} eq 'l') {
|
|
($br, $er) = ($self->line($br)->beg, $self->line($er)->end);
|
|
($bc, $ec) = (0, $self->ncol);
|
|
} else {
|
|
++$ec;
|
|
}
|
|
|
|
return ($br, $bc, $er, $ec);
|
|
}
|