3 # this extension implements scrollback buffer search
8 my $hotkey = $self->{argv}[0]
9 || $self->x_resource ("searchable-scrollback")
12 $self->parse_keysym ($hotkey, "perl:searchable-scrollback:start")
13 or warn "unable to register '$hotkey' as scrollback search start hotkey\n";
19 my ($self, $cmd) = @_;
21 $cmd eq "searchable-scrollback:start"
28 my ($self, $msg) = @_;
30 $self->{overlay} = $self->overlay (0, -1, $self->ncol, 1, urxvt::OVERLAY_RSTYLE, 0);
31 $self->{overlay}->set (0, 0, $self->special_encode ($msg));
37 return if $self->{overlay};
39 $self->{view_start} = $self->view_start;
40 $self->{pty_ev_events} = $self->pty_ev_events (urxvt::EVENT_NONE);
41 $self->{row} = $self->nrow - 1;
42 $self->{search} = "(?i)";
45 key_press => \&key_press,
46 tt_write => \&tt_write,
47 refresh_begin => \&refresh,
48 refresh_end => \&refresh,
51 $self->{manpage_overlay} = $self->overlay (0, -2, $self->ncol, 1, urxvt::OVERLAY_RSTYLE, 0);
52 $self->{manpage_overlay}->set (0, 0, "scrollback search, see the ${urxvt::RXVTNAME}perl manpage for details");
60 $self->disable ("key_press", "tt_write", "refresh_begin", "refresh_end");
61 $self->pty_ev_events ($self->{pty_ev_events});
63 delete $self->{manpage_overlay};
64 delete $self->{overlay};
65 delete $self->{history};
66 delete $self->{search};
72 $self->msg ("(escape cancels) /$self->{search}█");
76 my ($self, $dir) = @_;
78 delete $self->{found};
79 my $row = $self->{row};
81 my $search = $self->special_encode ($self->{search});
83 no re 'eval'; # just to be sure
84 if (my $re = eval { qr/$search/ }) {
85 while ($self->nrow > $row && $row > $self->top_row) {
86 my $line = $self->line ($row)
90 if ($text =~ /$re/g) {
92 push @{ $self->{found} }, [$line->coord_of ($-[0]), $line->coord_of ($+[0])];
93 } while $text =~ /$re/g;
96 $self->view_start (List::Util::min 0, $row - ($self->nrow >> 1));
101 $row = $dir < 0 ? $line->beg - 1 : $line->end + 1;
105 $self->scr_bell unless $self->{found};
111 return unless $self->{found};
113 my $xor = urxvt::RS_RVid | urxvt::RS_Blink;
114 for (@{ $self->{found} }) {
115 $self->scr_xor_span (@$_, $xor);
116 $xor = urxvt::RS_RVid;
123 my ($self, $event, $keysym, $string) = @_;
125 delete $self->{manpage_overlay};
127 if ($keysym == 0xff0d || $keysym == 0xff8d) { # enter
128 if ($self->{found} && $event->{state} & urxvt::ShiftMask) {
129 my ($br, $bc, $er, $ec) = @{ $self->{found}[0] };
130 $self->selection_beg ($br, $bc);
131 $self->selection_end ($er, $ec);
132 $self->selection_make ($event->{time});
135 } elsif ($keysym == 0xff1b) { # escape
136 $self->view_start ($self->{view_start});
138 } elsif ($keysym == 0xff57) { # end
139 $self->{row} = $self->nrow - 1;
140 $self->view_start (0);
141 } elsif ($keysym == 0xff52) { # up
142 $self->{row}-- if $self->{row} > $self->top_row;
144 } elsif ($keysym == 0xff54) { # down
145 $self->{row}++ if $self->{row} < $self->nrow;
147 } elsif ($keysym == 0xff08) { # backspace
148 substr $self->{search}, -1, 1, "";
151 } elsif ($string !~ /[\x00-\x1f\x80-\xaf]/) {
152 return; # pass to tt_write
159 my ($self, $data) = @_;
161 $self->{search} .= $self->locale_decode ($data);
163 $self->{search} =~ s/^\(\?i\)//
164 if $self->{search} =~ /^\(.*[[:upper:]]/;