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root |
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#! perl |
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# this extension implements scrollback buffer search |
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sub on_init { |
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my ($self) = @_; |
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my $hotkey = $self->{argv}[0] || "M-s"; |
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$self->parse_keysym ($hotkey, "perl:searchable-scrollback:enter") |
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or warn "unable to register '$hotkey' as scrollback search enter hotkey\n"; |
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() |
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} |
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sub on_keyboard_command { |
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my ($self, $cmd) = @_; |
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if ($cmd eq "searchable-scrollback:enter") { |
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$self->enter; |
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} |
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() |
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} |
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sub msg { |
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my ($self, $msg) = @_; |
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$self->{overlay} = $self->overlay (0, -1, $self->ncol, 1, urxvt::OVERLAY_RSTYLE, 0); |
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$self->{overlay}->set (0, 0, $self->special_encode ($msg)); |
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} |
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sub enter { |
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my ($self) = @_; |
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return if $self->{overlay}; |
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$self->{pty_ev_events} = $self->pty_ev_events (urxvt::EVENT_NONE); |
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$self->{view_start} = $self->view_start; |
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$self->enable ( |
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refresh_begin => sub { |
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warn "beg(@_)\n"; |
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}, |
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refresh_end => sub { |
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warn "end(@_)\n"; |
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}, |
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); |
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$self->idle; |
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} |
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sub leave { |
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my ($self) = @_; |
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delete $self->{overlay}; |
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$self->disable ("refresh_begin", "refresh_end"); |
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$self->pty_ev_events ($self->{pty_ev_events}); |
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$self->want_refresh; |
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} |
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sub idle { |
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my ($self) = @_; |
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$self->msg ("scrollback search, escape=exit, enter=accept, /=start search, n=next, p=previous"); |
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delete $self->{in_search}; |
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} |
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sub search { |
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my ($self) = @_; |
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my $row = -$self->view_start; |
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delete $self->{found}; |
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no re 'eval'; # just to be sure |
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my $re = qr/$self->{search}/; |
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while ($row > -$self->nsaved) { |
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my $line = $self->line ($row) |
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or last; |
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my $text = $line->t; |
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if ($text =~ /$re/g) { |
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do { |
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push @{ $self->{found} }, [$line->coord_of ($-[0]), $line->coord_of ($+[1])]; |
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} while $text =~ /$re/g; |
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$self->view_start (-$row + ($self->nrow >> 1)); |
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last; |
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} |
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$row = $line->beg - 1; |
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} |
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$self->msg ("enter/type/backspace: /$self->{search}_" |
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. ($self->{found} ? " (not found)" : "")); |
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$self->scr_bell unless $self->{found}; |
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} |
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sub on_key_press { |
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my ($self, $event, $keysym, $string) = @_; |
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$self->{overlay} |
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or return; |
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if (exists $self->{in_search}) { |
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if ($keysym == 0xff0d || $keysym == 0xff8d) { |
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delete $self->{in_search}; |
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} elsif ($keysym == 0xff1b) { |
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$self->view_start (delete $self->{in_search}); |
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} elsif ($keysym == 0xff08) { |
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substr $self->{search}, -1, 1, ""; |
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} elsif ($string ne "") { |
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$self->{search} .= $string; |
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} |
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$self->search; |
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} else { |
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if ($keysym == 0xff0d || $keysym == 0xff8d) { |
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# OK |
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$self->leave; |
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} elsif ($keysym == 0xff1b) { |
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$self->view_start ($self->{view_start}); |
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$self->leave; |
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} elsif ($keysym == 0xff52) { |
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$self->view_start ($self->view_start + 1); |
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} elsif ($keysym == 0xff54) { |
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$self->view_start ($self->view_start - 1); |
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} elsif ($string eq "/") { |
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$self->{in_search} = $self->view_start; |
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$self->search; |
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} elsif ($string eq "n") { |
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} elsif ($string eq "p") { |
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} elsif ($string ne "") { |
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$self->scr_bell; |
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} |
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} |
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1 |
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} |
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