[ViewVC] Annotation of: cvs/rxvt-unicode/src/perl/searchable-scrollback

#! perl

# this extension implements scrollback buffer search

sub on_init {
   my ($self) = @_;

   my $hotkey = $self->{argv}[0]
                || $self->x_resource ("searchable-scrollback")
                || "M-s";

   $self->parse_keysym ($hotkey, "perl:searchable-scrollback:start")
      or warn "unable to register '$hotkey' as scrollback search start hotkey\n";

   ()
}

sub on_user_command {
   my ($self, $cmd) = @_;

   $cmd eq "searchable-scrollback:start"
      and $self->enter;

   ()
}

sub msg {
   my ($self, $msg) = @_;

   $self->{overlay} = $self->overlay (0, -1, $self->ncol, 1, urxvt::OVERLAY_RSTYLE, 0);
   $self->{overlay}->set (0, 0, $self->special_encode ($msg));
}

sub enter {
   my ($self) = @_;

   return if $self->{overlay};

   $self->{view_start} = $self->view_start;
   $self->{pty_ev_events} = $self->pty_ev_events (urxvt::EV_NONE);
   $self->{row} = $self->nrow - 1;
   $self->{search} = "(?i)";

   $self->enable (
      key_press     => \&key_press,
      tt_write      => \&tt_write,
      refresh_begin => \&refresh,
      refresh_end   => \&refresh,
   );

   $self->{manpage_overlay} = $self->overlay (0, -2, $self->ncol, 1, urxvt::OVERLAY_RSTYLE, 0);
   $self->{manpage_overlay}->set (0, 0, "scrollback search, see the ${urxvt::RXVTNAME}perl manpage for details");

   $self->idle;
}

sub leave {
   my ($self) = @_;

   $self->disable ("key_press", "tt_write", "refresh_begin", "refresh_end");
   $self->pty_ev_events ($self->{pty_ev_events});

   delete $self->{manpage_overlay};
   delete $self->{overlay};
   delete $self->{history};
   delete $self->{search};
}

sub idle {
   my ($self) = @_;

   $self->msg ("(escape cancels) /$self->{search}█");
}

sub search {
   my ($self, $dir) = @_;

   delete $self->{found};
   my $row = $self->{row};

   my $search = $self->special_encode ($self->{search});

   no re 'eval'; # just to be sure
   if (my $re = eval { qr/$search/ }) {
      while ($self->nrow > $row && $row >= $self->top_row) {
         my $line = $self->line ($row)
            or last;

         my $text = $line->t;
         if ($text =~ /$re/g) {
            do {
               push @{ $self->{found} }, [$line->coord_of ($-[0]), $line->coord_of ($+[0])];
            } while $text =~ /$re/g;

            $self->{row} = $row;
            $self->view_start (List::Util::min 0, $row - ($self->nrow >> 1));
            $self->want_refresh;
            last;
         }

         $row = $dir < 0 ? $line->beg - 1 : $line->end + 1;
      }
   }

   $self->scr_bell unless $self->{found};
}

sub refresh {
   my ($self) = @_;

   return unless $self->{found};

   my $xor = urxvt::RS_RVid | urxvt::RS_Blink;
   for (@{ $self->{found} }) {
      $self->scr_xor_span (@$_, $xor);
      $xor = urxvt::RS_RVid;
   }

   ()
}

sub key_press {
   my ($self, $event, $keysym, $string) =  @_;

   delete $self->{manpage_overlay};

   if ($keysym == 0xff0d || $keysym == 0xff8d) { # enter
      if ($self->{found} && $event->{state} & urxvt::ShiftMask) {
         my ($br, $bc, $er, $ec) = @{ $self->{found}[0] };
         $self->selection_beg ($br, $bc);
         $self->selection_end ($er, $ec);
         $self->selection_make ($event->{time});
      }
      $self->leave;
   } elsif ($keysym == 0xff1b) { # escape
      $self->view_start ($self->{view_start});
      $self->leave;
   } elsif ($keysym == 0xff57) { # end
      $self->{row} = $self->nrow - 1;
      $self->view_start (0);
   } elsif ($keysym == 0xff52) { # up
      $self->{row}-- if $self->{row} > $self->top_row;
      $self->search (-1);
   } elsif ($keysym == 0xff54) { # down
      $self->{row}++ if $self->{row} < $self->nrow;
      $self->search (+1);
   } elsif ($keysym == 0xff08) { # backspace
      substr $self->{search}, -1, 1, "";
      $self->search;
      $self->idle;
   } elsif ($string !~ /[\x00-\x1f\x80-\xaf]/) {
      return; # pass to tt_write
   }

   1
}

sub tt_write {
   my ($self, $data) = @_;

   $self->{search} .= $self->locale_decode ($data);

   $self->{search} =~ s/^\(\?i\)//
      if $self->{search} =~ /^\(.*[[:upper:]]/;
   
   $self->search (-1);
   $self->idle;

   1
}


Revision:	1.25
Committed:	Thu Apr 1 18:36:23 2010 UTC (14 years, 1 month ago) by sf-exg
Branch:	MAIN
CVS Tags:	rel-9_11, rel-9_10, rel-9_12, rel-9_09
Changes since 1.24:	+1 -1 lines
Log Message:	Fix searchable-scrollback to not ignore the first line.
#	User	Rev	Content
1	root	1.1	#! perl
2
3			# this extension implements scrollback buffer search
4
5			sub on_init {
6			my ($self) = @_;
7
8	root	1.12	my $hotkey = $self->{argv}[0]
9			\|\| $self->x_resource ("searchable-scrollback")
10			\|\| "M-s";
11	root	1.1
12	root	1.4	$self->parse_keysym ($hotkey, "perl:searchable-scrollback:start")
13			or warn "unable to register '$hotkey' as scrollback search start hotkey\n";
14	root	1.1
15			()
16			}
17
18	root	1.21	sub on_user_command {
19	root	1.1	my ($self, $cmd) = @_;
20
21	root	1.8	$cmd eq "searchable-scrollback:start"
22			and $self->enter;
23	root	1.1
24			()
25			}
26
27			sub msg {
28			my ($self, $msg) = @_;
29
30			$self->{overlay} = $self->overlay (0, -1, $self->ncol, 1, urxvt::OVERLAY_RSTYLE, 0);
31			$self->{overlay}->set (0, 0, $self->special_encode ($msg));
32			}
33
34			sub enter {
35			my ($self) = @_;
36
37			return if $self->{overlay};
38
39	root	1.8	$self->{view_start} = $self->view_start;
40	root	1.24	$self->{pty_ev_events} = $self->pty_ev_events (urxvt::EV_NONE);
41	root	1.13	$self->{row} = $self->nrow - 1;
42	root	1.22	$self->{search} = "(?i)";
43	root	1.1
44			$self->enable (
45	root	1.2	key_press => \&key_press,
46	root	1.7	tt_write => \&tt_write,
47	root	1.2	refresh_begin => \&refresh,
48			refresh_end => \&refresh,
49	root	1.1	);
50
51	root	1.8	$self->{manpage_overlay} = $self->overlay (0, -2, $self->ncol, 1, urxvt::OVERLAY_RSTYLE, 0);
52	root	1.11	$self->{manpage_overlay}->set (0, 0, "scrollback search, see the ${urxvt::RXVTNAME}perl manpage for details");
53	root	1.8
54	root	1.1	$self->idle;
55			}
56
57			sub leave {
58			my ($self) = @_;
59
60	root	1.7	$self->disable ("key_press", "tt_write", "refresh_begin", "refresh_end");
61	root	1.8	$self->pty_ev_events ($self->{pty_ev_events});
62	root	1.1
63	root	1.8	delete $self->{manpage_overlay};
64			delete $self->{overlay};
65			delete $self->{history};
66	root	1.13	delete $self->{search};
67	root	1.1	}
68
69			sub idle {
70			my ($self) = @_;
71
72	root	1.13	$self->msg ("(escape cancels) /$self->{search}█");
73	root	1.1	}
74
75			sub search {
76	root	1.13	my ($self, $dir) = @_;
77	root	1.1
78			delete $self->{found};
79	root	1.13	my $row = $self->{row};
80	root	1.1
81	root	1.7	my $search = $self->special_encode ($self->{search});
82
83	root	1.1	no re 'eval'; # just to be sure
84	root	1.16	if (my $re = eval { qr/$search/ }) {
85	sf-exg	1.25	while ($self->nrow > $row && $row >= $self->top_row) {
86	root	1.16	my $line = $self->line ($row)
87			or last;
88
89			my $text = $line->t;
90			if ($text =~ /$re/g) {
91			do {
92			push @{ $self->{found} }, [$line->coord_of ($-[0]), $line->coord_of ($+[0])];
93			} while $text =~ /$re/g;
94
95			$self->{row} = $row;
96	root	1.20	$self->view_start (List::Util::min 0, $row - ($self->nrow >> 1));
97	root	1.16	$self->want_refresh;
98			last;
99			}
100	root	1.1
101	root	1.16	$row = $dir < 0 ? $line->beg - 1 : $line->end + 1;
102	root	1.1	}
103			}
104
105			$self->scr_bell unless $self->{found};
106			}
107
108	root	1.2	sub refresh {
109			my ($self) = @_;
110
111	root	1.18	return unless $self->{found};
112
113	root	1.15	my $xor = urxvt::RS_RVid \| urxvt::RS_Blink;
114	root	1.13	for (@{ $self->{found} }) {
115			$self->scr_xor_span (@$_, $xor);
116			$xor = urxvt::RS_RVid;
117			}
118	root	1.2
119			()
120			}
121
122			sub key_press {
123	root	1.1	my ($self, $event, $keysym, $string) = @_;
124
125	root	1.13	delete $self->{manpage_overlay};
126
127	root	1.14	if ($keysym == 0xff0d \|\| $keysym == 0xff8d) { # enter
128	ayin	1.23	if ($self->{found} && $event->{state} & urxvt::ShiftMask) {
129	root	1.13	my ($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});
133			}
134			$self->leave;
135	root	1.14	} elsif ($keysym == 0xff1b) { # escape
136	root	1.13	$self->view_start ($self->{view_start});
137			$self->leave;
138	root	1.14	} elsif ($keysym == 0xff57) { # end
139	root	1.13	$self->{row} = $self->nrow - 1;
140			$self->view_start (0);
141	root	1.14	} elsif ($keysym == 0xff52) { # up
142	root	1.20	$self->{row}-- if $self->{row} > $self->top_row;
143	root	1.13	$self->search (-1);
144	root	1.14	} elsif ($keysym == 0xff54) { # down
145	root	1.13	$self->{row}++ if $self->{row} < $self->nrow;
146			$self->search (+1);
147	root	1.14	} elsif ($keysym == 0xff08) { # backspace
148	root	1.13	substr $self->{search}, -1, 1, "";
149			$self->search;
150			$self->idle;
151	root	1.19	} elsif ($string !~ /[\x00-\x1f\x80-\xaf]/) {
152	root	1.13	return; # pass to tt_write
153	root	1.1	}
154
155			1
156			}
157
158	root	1.7	sub tt_write {
159			my ($self, $data) = @_;
160
161			$self->{search} .= $self->locale_decode ($data);
162	root	1.22
163			$self->{search} =~ s/^\(\?i\)//
164			if $self->{search} =~ /^\(.*[[:upper:]]/;
165
166	root	1.13	$self->search (-1);
167			$self->idle;
168	root	1.7
169			1
170			}
171
172	root	1.1