1 |
#! perl |
2 |
|
3 |
# this extension implements scrollback buffer search |
4 |
|
5 |
sub on_init { |
6 |
my ($self) = @_; |
7 |
|
8 |
my $hotkey = $self->{argv}[0] || "M-s"; |
9 |
|
10 |
$self->parse_keysym ($hotkey, "perl:searchable-scrollback:start") |
11 |
or warn "unable to register '$hotkey' as scrollback search start hotkey\n"; |
12 |
|
13 |
() |
14 |
} |
15 |
|
16 |
sub on_keyboard_command { |
17 |
my ($self, $cmd) = @_; |
18 |
|
19 |
if ($cmd eq "searchable-scrollback:start") { |
20 |
$self->enter; |
21 |
} |
22 |
|
23 |
() |
24 |
} |
25 |
|
26 |
sub msg { |
27 |
my ($self, $msg) = @_; |
28 |
|
29 |
$self->{overlay} = $self->overlay (0, -1, $self->ncol, 1, urxvt::OVERLAY_RSTYLE, 0); |
30 |
$self->{overlay}->set (0, 0, $self->special_encode ($msg)); |
31 |
} |
32 |
|
33 |
sub enter { |
34 |
my ($self) = @_; |
35 |
|
36 |
return if $self->{overlay}; |
37 |
|
38 |
$self->{pty_ev_events} = $self->pty_ev_events (urxvt::EVENT_NONE); |
39 |
$self->{view_start} = $self->view_start; |
40 |
|
41 |
$self->enable ( |
42 |
key_press => \&key_press, |
43 |
tt_write => \&tt_write, |
44 |
refresh_begin => \&refresh, |
45 |
refresh_end => \&refresh, |
46 |
); |
47 |
|
48 |
$self->idle; |
49 |
} |
50 |
|
51 |
sub leave { |
52 |
my ($self) = @_; |
53 |
|
54 |
delete $self->{overlay}; |
55 |
|
56 |
$self->disable ("key_press", "tt_write", "refresh_begin", "refresh_end"); |
57 |
|
58 |
$self->pty_ev_events ($self->{pty_ev_events}); |
59 |
$self->want_refresh; |
60 |
} |
61 |
|
62 |
sub idle { |
63 |
my ($self) = @_; |
64 |
|
65 |
$self->msg ("scrollback search, escape=exit, enter=accept, /=start search, n=next, p=previous, G=bottom"); |
66 |
|
67 |
delete $self->{in_search}; |
68 |
} |
69 |
|
70 |
sub search { |
71 |
my ($self, $offset) = @_; |
72 |
|
73 |
my $row = -$self->view_start + ($self->nrow >> 1) + $offset; |
74 |
|
75 |
delete $self->{found}; |
76 |
|
77 |
my $search = $self->special_encode ($self->{search}); |
78 |
|
79 |
no re 'eval'; # just to be sure |
80 |
my $re = qr/$search/; |
81 |
|
82 |
while ($row > -$self->nsaved) { |
83 |
my $line = $self->line ($row) |
84 |
or last; |
85 |
|
86 |
my $text = $line->t; |
87 |
if ($text =~ /$re/g) { |
88 |
do { |
89 |
push @{ $self->{found} }, [$line->coord_of ($-[0]), $line->coord_of ($+[0])]; |
90 |
} while $text =~ /$re/g; |
91 |
|
92 |
$self->view_start (-$row + ($self->nrow >> 1)); |
93 |
last; |
94 |
} |
95 |
|
96 |
$row = $line->beg - 1; |
97 |
} |
98 |
|
99 |
$self->msg ("enter/type/backspace: /$self->{search}_" |
100 |
. ($self->{found} ? "" : " (not found)")); |
101 |
$self->scr_bell unless $self->{found}; |
102 |
} |
103 |
|
104 |
sub refresh { |
105 |
my ($self) = @_; |
106 |
|
107 |
return unless $self->{found}; |
108 |
|
109 |
$self->scr_xor_span (@$_, urxvt::SET_FGCOLOR (urxvt::RS_RVid, 15)) |
110 |
for @{ $self->{found} }; |
111 |
|
112 |
() |
113 |
} |
114 |
|
115 |
sub key_press { |
116 |
my ($self, $event, $keysym, $string) = @_; |
117 |
|
118 |
if (exists $self->{in_search}) { |
119 |
if ($keysym == 0xff0d || $keysym == 0xff8d) { |
120 |
$self->idle; |
121 |
} elsif ($keysym == 0xff1b) { |
122 |
$self->view_start ($self->{in_search}); |
123 |
$self->idle; |
124 |
} elsif ($keysym == 0xff08) { |
125 |
substr $self->{search}, -1, 1, ""; |
126 |
$self->search; |
127 |
} elsif ($string ne "") { |
128 |
return; |
129 |
} |
130 |
} else { |
131 |
if ($keysym == 0xff0d || $keysym == 0xff8d) { |
132 |
# OK |
133 |
$self->leave; |
134 |
} elsif ($keysym == 0xff1b) { |
135 |
$self->view_start ($self->{view_start}); |
136 |
$self->leave; |
137 |
} elsif ($keysym == 0xff52) { |
138 |
$self->view_start ($self->view_start + 1); |
139 |
} elsif ($keysym == 0xff54) { |
140 |
$self->view_start ($self->view_start - 1); |
141 |
} elsif ($string eq "/") { |
142 |
$self->{in_search} = $self->view_start; |
143 |
$self->search; |
144 |
} elsif ($string eq "G") { |
145 |
$self->view_start (0); |
146 |
} elsif ($string eq "n") { |
147 |
$self->search (-1); |
148 |
$self->idle; |
149 |
} elsif ($string eq "p" or $string eq "N") { |
150 |
# TODO |
151 |
} elsif ($string ne "") { |
152 |
$self->scr_bell; |
153 |
} |
154 |
} |
155 |
|
156 |
1 |
157 |
} |
158 |
|
159 |
sub tt_write { |
160 |
my ($self, $data) = @_; |
161 |
|
162 |
$self->{search} .= $self->locale_decode ($data); |
163 |
$self->search; |
164 |
|
165 |
1 |
166 |
} |
167 |
|
168 |
|