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/cvs/rxvt-unicode/src/perl/tabbed
Revision: 1.33
Committed: Sun Jun 10 17:31:53 2012 UTC (11 years, 11 months ago) by root
Branch: MAIN
Changes since 1.32: +29 -0 lines
Log Message:
move perl docs to extensions

File Contents

# Content
1 #! perl
2
3 #:META:X_RESOURCE:tabbar-fg:colour:tab bar foreground colour
4 #:META:X_RESOURCE:tabbar-bg:colour:tab bar background colour
5 #:META:X_RESOURCE:tab-fg:colour:tab foreground colour
6 #:META:X_RESOURCE:tab-bg:colour:tab background colour
7
8 =head1 NAME
9
10 tabbed - tabbed interface to urxvt
11
12 =head1 DESCRIPTION
13
14 This transforms the terminal into a tabbar with additional terminals, that
15 is, it implements what is commonly referred to as "tabbed terminal". The topmost line
16 displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
17 button per tab.
18
19 Clicking a button will activate that tab. Pressing B<Shift-Left> and
20 B<Shift-Right> will switch to the tab left or right of the current one,
21 while B<Shift-Down> creates a new tab.
22
23 The tabbar itself can be configured similarly to a normal terminal, but
24 with a resource class of C<URxvt.tabbed>. In addition, it supports the
25 following four resources (shown with defaults):
26
27 URxvt.tabbed.tabbar-fg: <colour-index, default 3>
28 URxvt.tabbed.tabbar-bg: <colour-index, default 0>
29 URxvt.tabbed.tab-fg: <colour-index, default 0>
30 URxvt.tabbed.tab-bg: <colour-index, default 1>
31
32 See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
33 indices.
34
35 =cut
36
37 sub refresh {
38 my ($self) = @_;
39
40 my $ncol = $self->ncol;
41
42 my $text = " " x $ncol;
43 my $rend = [($self->{rs_tabbar}) x $ncol];
44
45 my @ofs;
46
47 substr $text, 0, 7, "[NEW] |";
48 @$rend[0 .. 5] = ($self->{rs_tab}) x 6;
49 push @ofs, [0, 6, sub { $_[0]->new_tab }];
50
51 my $ofs = 7;
52 my $idx = 0;
53
54 for my $tab (@{ $self->{tabs} }) {
55 $idx++;
56
57 my $act = $tab->{activity} && $tab != $self->{cur}
58 ? "*" : " ";
59
60 my $txt = "$act$idx$act";
61 my $len = length $txt;
62
63 substr $text, $ofs, $len + 1, "$txt|";
64 @$rend[$ofs .. $ofs + $len - 1] = ($self->{rs_tab}) x $len
65 if $tab == $self->{cur};
66
67 push @ofs, [ $ofs, $ofs + $len, sub { $_[0]->make_current ($tab) } ];
68
69 $ofs += $len + 1;
70 }
71
72 $self->{tabofs} = \@ofs;
73
74 $self->ROW_t (0, $text, 0, 0, $ncol);
75 $self->ROW_r (0, $rend, 0, 0, $ncol);
76
77 $self->want_refresh;
78 }
79
80 sub new_tab {
81 my ($self, @argv) = @_;
82
83 # save a backlink to us, make sure tabbed is inactive
84 push @urxvt::TERM_INIT, sub {
85 my ($term) = @_;
86 $term->{parent} = $self;
87
88 for (0 .. urxvt::NUM_RESOURCES - 1) {
89 my $value = $self->{resource}[$_];
90
91 $term->resource ("+$_" => $value)
92 if defined $value;
93 }
94
95 $term->resource (perl_ext_2 => $term->resource ("perl_ext_2") . ",-tabbed");
96 };
97
98 push @urxvt::TERM_EXT, urxvt::ext::tabbed::tab::;
99
100 my $term = new urxvt::term
101 $self->env, $urxvt::RXVTNAME,
102 -embed => $self->parent,
103 @argv,
104 ;
105 }
106
107 sub configure {
108 my ($self) = @_;
109
110 my $tab = $self->{cur};
111
112 # this is an extremely dirty way to force a configurenotify, but who cares
113 $tab->XMoveResizeWindow (
114 $tab->parent,
115 0, $self->{tabheight} + 1,
116 $self->width, $self->height - $self->{tabheight}
117 );
118 $tab->XMoveResizeWindow (
119 $tab->parent,
120 0, $self->{tabheight},
121 $self->width, $self->height - $self->{tabheight}
122 );
123 }
124
125 sub on_resize_all_windows {
126 my ($self, $width, $height) = @_;
127
128 1
129 }
130
131 sub copy_properties {
132 my ($self) = @_;
133 my $tab = $self->{cur};
134
135 my $wm_normal_hints = $self->XInternAtom ("WM_NORMAL_HINTS");
136
137 my $current = delete $self->{current_properties};
138
139 # pass 1: copy over properties different or nonexisting
140 for my $atom ($tab->XListProperties ($tab->parent)) {
141 my ($type, $format, $items) = $self->XGetWindowProperty ($tab->parent, $atom);
142
143 # fix up size hints
144 if ($atom == $wm_normal_hints) {
145 my (@hints) = unpack "l!*", $items;
146
147 $hints[$_] += $self->{tabheight} for (4, 6, 16);
148
149 $items = pack "l!*", @hints;
150 }
151
152 my $cur = delete $current->{$atom};
153
154 # update if changed, we assume empty items and zero type and format will not happen
155 $self->XChangeProperty ($self->parent, $atom, $type, $format, $items)
156 if $cur->[0] != $type or $cur->[1] != $format or $cur->[2] ne $items;
157
158 $self->{current_properties}{$atom} = [$type, $format, $items];
159 }
160
161 # pass 2, delete all extraneous properties
162 $self->XDeleteProperty ($self->parent, $_) for keys %$current;
163 }
164
165 sub make_current {
166 my ($self, $tab) = @_;
167
168 if (my $cur = $self->{cur}) {
169 delete $cur->{activity};
170 $cur->XUnmapWindow ($cur->parent) if $cur->mapped;
171 $cur->focus_out;
172 }
173
174 $self->{cur} = $tab;
175
176 $self->configure;
177 $self->copy_properties;
178
179 $tab->focus_out; # just in case, should be a nop
180 $tab->focus_in if $self->focus;
181
182 $tab->XMapWindow ($tab->parent);
183 delete $tab->{activity};
184 $self->refresh;
185
186 ()
187 }
188
189 sub on_focus_in {
190 my ($self, $event) = @_;
191
192 $self->{cur}->focus_in;
193
194 ()
195 }
196
197 sub on_focus_out {
198 my ($self, $event) = @_;
199
200 $self->{cur}->focus_out;
201
202 ()
203 }
204
205 sub on_tt_write {
206 my ($self, $octets) = @_;
207
208 $self->{cur}->tt_write ($octets);
209
210 1
211 }
212
213 sub on_key_press {
214 my ($self, $event) = @_;
215
216 $self->{cur}->key_press ($event->{state}, $event->{keycode}, $event->{time});
217
218 1
219 }
220
221 sub on_key_release {
222 my ($self, $event) = @_;
223
224 $self->{cur}->key_release ($event->{state}, $event->{keycode}, $event->{time});
225
226 1
227 }
228
229 sub on_button_press {
230 1
231 }
232
233 sub on_button_release {
234 my ($self, $event) = @_;
235
236 if ($event->{row} == 0) {
237 for my $button (@{ $self->{tabofs} }) {
238 $button->[2]->($self, $event)
239 if $event->{col} >= $button->[0]
240 && $event->{col} < $button->[1];
241 }
242 }
243
244 1
245 }
246
247 sub on_motion_notify {
248 1
249 }
250
251 sub on_init {
252 my ($self) = @_;
253
254 $self->{resource} = [map $self->resource ("+$_"), 0 .. urxvt::NUM_RESOURCES - 1];
255
256 $self->resource (int_bwidth => 0);
257 $self->resource (name => "URxvt.tabbed");
258 $self->resource (pty_fd => -1);
259
260 $self->option ($urxvt::OPTION{scrollBar}, 0);
261
262 my $fg = $self->x_resource ("tabbar-fg");
263 my $bg = $self->x_resource ("tabbar-bg");
264 my $tabfg = $self->x_resource ("tab-fg");
265 my $tabbg = $self->x_resource ("tab-bg");
266
267 defined $fg or $fg = 3;
268 defined $bg or $bg = 0;
269 defined $tabfg or $tabfg = 0;
270 defined $tabbg or $tabbg = 1;
271
272 $self->{rs_tabbar} = urxvt::SET_COLOR (urxvt::DEFAULT_RSTYLE, $fg + 2, $bg + 2);
273 $self->{rs_tab} = urxvt::SET_COLOR (urxvt::DEFAULT_RSTYLE, $tabfg + 2, $tabbg + 2);
274
275 ()
276 }
277
278 sub on_start {
279 my ($self) = @_;
280
281 $self->{tabheight} = $self->int_bwidth + $self->fheight + $self->lineSpace;
282
283 $self->cmd_parse ("\033[?25l");
284
285 my @argv = $self->argv;
286
287 do {
288 shift @argv;
289 } while @argv && $argv[0] ne "-e";
290
291 $self->new_tab (@argv);
292
293 ()
294 }
295
296 sub on_configure_notify {
297 my ($self, $event) = @_;
298
299 $self->configure;
300 $self->refresh;
301
302 ()
303 }
304
305 sub on_wm_delete_window {
306 my ($self) = @_;
307
308 $_->destroy for @{ $self->{tabs} };
309
310 1
311 }
312
313 sub tab_start {
314 my ($self, $tab) = @_;
315
316 $tab->XChangeInput ($tab->parent, urxvt::PropertyChangeMask);
317
318 push @{ $self->{tabs} }, $tab;
319
320 # $tab->{name} ||= scalar @{ $self->{tabs} };
321 $self->make_current ($tab);
322
323 ()
324 }
325
326 sub tab_destroy {
327 my ($self, $tab) = @_;
328
329 $self->{tabs} = [ grep $_ != $tab, @{ $self->{tabs} } ];
330
331 if (@{ $self->{tabs} }) {
332 if ($self->{cur} == $tab) {
333 delete $self->{cur};
334 $self->make_current ($self->{tabs}[-1]);
335 } else {
336 $self->refresh;
337 }
338 } else {
339 # delay destruction a tiny bit
340 $self->{destroy} = urxvt::iw->new->start->cb (sub { $self->destroy });
341 }
342
343 ()
344 }
345
346 sub tab_key_press {
347 my ($self, $tab, $event, $keysym, $str) = @_;
348
349 if ($event->{state} & urxvt::ShiftMask) {
350 if ($keysym == 0xff51 || $keysym == 0xff53) {
351 my ($idx) = grep $self->{tabs}[$_] == $tab, 0 .. $#{ $self->{tabs} };
352
353 --$idx if $keysym == 0xff51;
354 ++$idx if $keysym == 0xff53;
355
356 $self->make_current ($self->{tabs}[$idx % @{ $self->{tabs}}]);
357
358 return 1;
359 } elsif ($keysym == 0xff54) {
360 $self->new_tab;
361
362 return 1;
363 }
364 }
365 elsif ($event->{state} & urxvt::ControlMask) {
366 if ($keysym == 0xff51 || $keysym == 0xff53) {
367 my ($idx1) = grep $self->{tabs}[$_] == $tab, 0 .. $#{ $self->{tabs} };
368 my $idx2 = ($idx1 + ($keysym == 0xff51 ? -1 : +1)) % @{ $self->{tabs} };
369
370 ($self->{tabs}[$idx1], $self->{tabs}[$idx2]) =
371 ($self->{tabs}[$idx2], $self->{tabs}[$idx1]);
372
373 $self->make_current ($self->{tabs}[$idx2]);
374
375 return 1;
376 }
377 }
378
379 ()
380 }
381
382 sub tab_property_notify {
383 my ($self, $tab, $event) = @_;
384
385 $self->copy_properties
386 if $event->{window} == $tab->parent;
387
388 ()
389 }
390
391 sub tab_activity {
392 my ($self, $tab) = @_;
393
394 $self->refresh;
395 }
396
397 package urxvt::ext::tabbed::tab;
398
399 # helper extension implementing the subwindows of a tabbed terminal.
400 # simply proxies all interesting calls back to the tabbed class.
401
402 {
403 for my $hook qw(start destroy key_press property_notify) {
404 eval qq{
405 sub on_$hook {
406 my \$parent = \$_[0]{term}{parent}
407 or return;
408 \$parent->tab_$hook (\@_)
409 }
410 };
411 die if $@;
412 }
413 }
414
415 sub on_add_lines {
416 $_[0]->{activity}++
417 or $_[0]{term}{parent}->tab_activity ($_[0]);
418 ()
419 }
420
421