[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_keyboard_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->{history} = [];
   $self->{view_start} = $self->view_start;
   $self->{pty_ev_events} = $self->pty_ev_events (urxvt::EVENT_NONE);

   $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};
}

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

   $self->msg ("escape=exit, enter=accept, /=start search, n=next, p=previous, G=bottom");

   delete $self->{in_search};
}

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

   my $row = -$self->view_start + ($self->nrow >> 1) + $offset;

   delete $self->{found};

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

   no re 'eval'; # just to be sure
   my $re = qr/$search/;

   while ($row > -$self->nsaved) {
      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;

         $self->view_start (-$row + ($self->nrow >> 1));
         last;
      }

      $row = $line->beg - 1;
   }

   $self->msg ("enter/type/backspace: /$self->{search}_"
               . ($self->{found} ? "" : " (not found)"));
   $self->scr_bell unless $self->{found};
}

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

   return unless $self->{found};

   $self->scr_xor_span (@$_, urxvt::SET_FGCOLOR (urxvt::RS_RVid, 15))
      for @{ $self->{found} };

   ()
}

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

   if (exists $self->{in_search}) {
      if ($keysym == 0xff0d || $keysym == 0xff8d) {
         $self->idle;
      } elsif ($keysym == 0xff1b) {
         $self->view_start ($self->{in_search});
         $self->idle;
      } elsif ($keysym == 0xff08) {
         substr $self->{search}, -1, 1, "";
         $self->search;
      } elsif ($string ne "") {
         return;
      }

   } else {
      if ($keysym == 0xff0d || $keysym == 0xff8d) {
         # TODO: set selection
         $self->leave;
      } elsif ($keysym == 0xff1b) {
         $self->view_start ($self->{view_start});
         $self->leave;
      } elsif ($keysym == 0xff52) {
         $self->view_start ($self->view_start + 1);
      } elsif ($keysym == 0xff54) {
         $self->view_start ($self->view_start - 1);
      } elsif ($string eq "/") {
         delete $self->{manpage_overlay};
         $self->{in_search} = $self->view_start;
         $self->search;
      } elsif ($string eq "G") {
         $self->{history} = [];
         $self->view_start (0);
      } elsif ($string eq "n") {
         if ($self->{found} && @{ $self->{found} }) {
            push @{ $self->{history} }, [$self->view_start, $self->{found}];
            $self->search (-1);
            $self->idle;
         }
      } elsif ($string eq "p" or $string eq "N") {
         if (my $prev = pop @{ $self->{history} }) {
            $self->view_start ($prev->[0]);
            $self->{found} = $prev->[1];
            $self->want_refresh;
         }
      } elsif ($string ne "") {
         $self->scr_bell;
      }
   }

   1
}

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

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

   1
}


Revision:	1.12
Committed:	Wed Jan 11 02:13:56 2006 UTC (18 years, 4 months ago) by root
Branch:	MAIN
Changes since 1.11:	+3 -1 lines
Log Message:	* empty log message *
#	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 '$hotkey' as scrollback search start hotkey\n";
14	root	1.1
15			()
16			}
17
18			sub on_keyboard_command {
19			my ($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->{history} = [];
40			$self->{view_start} = $self->view_start;
41	root	1.1	$self->{pty_ev_events} = $self->pty_ev_events (urxvt::EVENT_NONE);
42
43			$self->enable (
44	root	1.2	key_press => \&key_press,
45	root	1.7	tt_write => \&tt_write,
46	root	1.2	refresh_begin => \&refresh,
47			refresh_end => \&refresh,
48	root	1.1	);
49
50	root	1.8	$self->{manpage_overlay} = $self->overlay (0, -2, $self->ncol, 1, urxvt::OVERLAY_RSTYLE, 0);
51	root	1.11	$self->{manpage_overlay}->set (0, 0, "scrollback search, see the ${urxvt::RXVTNAME}perl manpage for details");
52	root	1.8
53	root	1.1	$self->idle;
54			}
55
56			sub leave {
57			my ($self) = @_;
58
59	root	1.7	$self->disable ("key_press", "tt_write", "refresh_begin", "refresh_end");
60	root	1.8	$self->pty_ev_events ($self->{pty_ev_events});
61	root	1.1
62	root	1.8	delete $self->{manpage_overlay};
63			delete $self->{overlay};
64			delete $self->{history};
65	root	1.1	}
66
67			sub idle {
68			my ($self) = @_;
69
70	root	1.8	$self->msg ("escape=exit, enter=accept, /=start search, n=next, p=previous, G=bottom");
71	root	1.1
72			delete $self->{in_search};
73			}
74
75			sub search {
76	root	1.5	my ($self, $offset) = @_;
77	root	1.1
78	root	1.5	my $row = -$self->view_start + ($self->nrow >> 1) + $offset;
79	root	1.1
80			delete $self->{found};
81
82	root	1.7	my $search = $self->special_encode ($self->{search});
83
84	root	1.1	no re 'eval'; # just to be sure
85	root	1.7	my $re = qr/$search/;
86	root	1.1
87			while ($row > -$self->nsaved) {
88			my $line = $self->line ($row)
89			or last;
90
91			my $text = $line->t;
92			if ($text =~ /$re/g) {
93			do {
94	root	1.2	push @{ $self->{found} }, [$line->coord_of ($-[0]), $line->coord_of ($+[0])];
95	root	1.1	} while $text =~ /$re/g;
96
97			$self->view_start (-$row + ($self->nrow >> 1));
98			last;
99			}
100
101			$row = $line->beg - 1;
102			}
103
104			$self->msg ("enter/type/backspace: /$self->{search}_"
105	root	1.3	. ($self->{found} ? "" : " (not found)"));
106	root	1.1	$self->scr_bell unless $self->{found};
107			}
108
109	root	1.2	sub refresh {
110			my ($self) = @_;
111
112			return unless $self->{found};
113
114	root	1.5	$self->scr_xor_span (@$_, urxvt::SET_FGCOLOR (urxvt::RS_RVid, 15))
115	root	1.2	for @{ $self->{found} };
116
117			()
118			}
119
120			sub key_press {
121	root	1.1	my ($self, $event, $keysym, $string) = @_;
122
123			if (exists $self->{in_search}) {
124			if ($keysym == 0xff0d \|\| $keysym == 0xff8d) {
125	root	1.2	$self->idle;
126	root	1.1	} elsif ($keysym == 0xff1b) {
127	root	1.2	$self->view_start ($self->{in_search});
128			$self->idle;
129	root	1.1	} elsif ($keysym == 0xff08) {
130			substr $self->{search}, -1, 1, "";
131	root	1.2	$self->search;
132	root	1.1	} elsif ($string ne "") {
133	root	1.7	return;
134	root	1.1	}
135	root	1.8
136	root	1.1	} else {
137			if ($keysym == 0xff0d \|\| $keysym == 0xff8d) {
138	root	1.9	# TODO: set selection
139	root	1.1	$self->leave;
140			} elsif ($keysym == 0xff1b) {
141			$self->view_start ($self->{view_start});
142			$self->leave;
143			} elsif ($keysym == 0xff52) {
144			$self->view_start ($self->view_start + 1);
145			} elsif ($keysym == 0xff54) {
146			$self->view_start ($self->view_start - 1);
147			} elsif ($string eq "/") {
148	root	1.8	delete $self->{manpage_overlay};
149	root	1.1	$self->{in_search} = $self->view_start;
150			$self->search;
151	root	1.3	} elsif ($string eq "G") {
152	root	1.8	$self->{history} = [];
153	root	1.3	$self->view_start (0);
154	root	1.1	} elsif ($string eq "n") {
155	root	1.8	if ($self->{found} && @{ $self->{found} }) {
156			push @{ $self->{history} }, [$self->view_start, $self->{found}];
157			$self->search (-1);
158			$self->idle;
159			}
160	root	1.6	} elsif ($string eq "p" or $string eq "N") {
161	root	1.8	if (my $prev = pop @{ $self->{history} }) {
162			$self->view_start ($prev->[0]);
163			$self->{found} = $prev->[1];
164			$self->want_refresh;
165			}
166	root	1.1	} elsif ($string ne "") {
167			$self->scr_bell;
168			}
169			}
170
171			1
172			}
173
174	root	1.7	sub tt_write {
175			my ($self, $data) = @_;
176
177			$self->{search} .= $self->locale_decode ($data);
178			$self->search;
179
180			1
181			}
182
183	root	1.1