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Revision 1.56 by root, Sun Jan 8 05:52:42 2006 UTC vs.
Revision 1.86 by root, Thu Jan 12 05:22:47 2006 UTC

26thus must be encoded as UTF-8. 26thus must be encoded as UTF-8.
27 27
28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where 28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
29scripts will be shared (but not enabled) for all terminals. 29scripts will be shared (but not enabled) for all terminals.
30 30
31=head2 Prepackaged Extensions 31=head1 PREPACKAGED EXTENSIONS
32 32
33This section describes the extensiosn delivered with this version. You can 33This section describes the extensions delivered with this release. You can
34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. 34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35 35
36You can activate them like this: 36You can activate them like this:
37 37
38 @@RXVT_NAME@@ -pe <extensionname> 38 @@RXVT_NAME@@ -pe <extensionname>
39 39
40=over 4 40=over 4
41 41
42=item selection (enabled by default) 42=item selection (enabled by default)
43 43
44Intelligent selection. This extension tries to be more intelligent when 44(More) intelligent selection. This extension tries to be more intelligent
45the user extends selections (double-click). Right now, it tries to select 45when the user extends selections (double-click). Right now, it tries to
46urls and complete shell-quoted arguments, which is very convenient, too, 46select urls and complete shell-quoted arguments, which is very convenient,
47if your F<ls> supports C<--quoting-style=shell>. 47too, if your F<ls> supports C<--quoting-style=shell>.
48 48
49It also offers the following bindable event: 49It also offers the following bindable keyboard command:
50 50
51=over 4 51=over 4
52 52
53=item rot13 53=item rot13
54 54
58 58
59=back 59=back
60 60
61=item option-popup (enabled by default) 61=item option-popup (enabled by default)
62 62
63Binds a popup menu to Ctrl-Button3 that lets you toggle (some) options at 63Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
64runtime. 64runtime.
65 65
66=item selection-popup (enabled by default)
67
68Binds a popup menu to Ctrl-Button3 that lets you convert the selection
69text into various other formats/action (such as uri unescaping, perl
70evalution, web-browser starting etc.), depending on content.
71
72=item searchable-scrollback<hotkey> (enabled by default)
73
74Adds regex search functionality to the scrollback buffer, triggered
75by a hotkey (default: C<M-s>). When in search mode, normal terminal
76input/output is suspended.
77
78C</> starts an incremental regex search, C<n> searches further, C<p> or
79C<N> jump to the previous match, C<G> jumps to the bottom and clears the
80history, C<enter> leaves search mode at the current position and C<escape>
81returns to the original position.
82
66=item digital-clock 83=item digital-clock
67 84
68Displays a digital clock using the built-in overlay. 85Displays a digital clock using the built-in overlay.
69 86
70=item mark-urls 87=item mark-urls
71 88
72Uses per-line display filtering (C<on_line_update>) to underline urls. 89Uses per-line display filtering (C<on_line_update>) to underline urls and
90make them clickable. When middle-clicked, the program specified in the
91resource C<urlLauncher> (default C<x-www-browser>) will be started.
73 92
74=item block-graphics-to-ascii 93=item block-graphics-to-ascii
75 94
76A not very useful example of filtering all text output to the terminal, 95A not very useful example of filtering all text output to the terminal,
77by replacing all line-drawing characters (U+2500 .. U+259F) by a 96by replacing all line-drawing characters (U+2500 .. U+259F) by a
82Displays a very simple digital clock in the upper right corner of the 101Displays a very simple digital clock in the upper right corner of the
83window. Illustrates overwriting the refresh callbacks to create your own 102window. Illustrates overwriting the refresh callbacks to create your own
84overlays or changes. 103overlays or changes.
85 104
86=back 105=back
106
107=head1 API DOCUMENTATION
87 108
88=head2 General API Considerations 109=head2 General API Considerations
89 110
90All objects (such as terminals, time watchers etc.) are typical 111All objects (such as terminals, time watchers etc.) are typical
91reference-to-hash objects. The hash can be used to store anything you 112reference-to-hash objects. The hash can be used to store anything you
104=over 4 125=over 4
105 126
106=item $text 127=item $text
107 128
108Rxvt-unicodes special way of encoding text, where one "unicode" character 129Rxvt-unicodes special way of encoding text, where one "unicode" character
109always represents one screen cell. See L<row_t> for a discussion of this format. 130always represents one screen cell. See L<ROW_t> for a discussion of this format.
110 131
111=item $string 132=item $string
112 133
113A perl text string, with an emphasis on I<text>. It can store all unicode 134A perl text string, with an emphasis on I<text>. It can store all unicode
114characters and is to be distinguished with text encoded in a specific 135characters and is to be distinguished with text encoded in a specific
119Either binary data or - more common - a text string encoded in a 140Either binary data or - more common - a text string encoded in a
120locale-specific way. 141locale-specific way.
121 142
122=back 143=back
123 144
145=head2 Extension Objects
146
147Very perl extension is a perl class. A separate perl object is created
148for each terminal and each extension and passed as the first parameter to
149hooks. So extensions can use their C<$self> object without having to think
150about other extensions, with the exception of methods and members that
151begin with an underscore character C<_>: these are reserved for internal
152use.
153
154Although it isn't a C<urxvt::term> object, you can call all methods of the
155C<urxvt::term> class on this object.
156
157It has the following methods and data members:
158
159=over 4
160
161=item $urxvt_term = $self->{term}
162
163Returns the C<urxvt::term> object associated with this instance of the
164extension. This member I<must not> be changed in any way.
165
166=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
167
168Dynamically enable the given hooks (named without the C<on_> prefix) for
169this extension, replacing any previous hook. This is useful when you want
170to overwrite time-critical hooks only temporarily.
171
172=item $self->disable ($hook_name[, $hook_name..])
173
174Dynamically disable the given hooks.
175
176=back
177
124=head2 Hooks 178=head2 Hooks
125 179
126The following subroutines can be declared in extension files, and will be 180The following subroutines can be declared in extension files, and will be
127called whenever the relevant event happens. 181called whenever the relevant event happens.
128 182
129The first argument passed to them is an object private to each terminal 183The first argument passed to them is an extension oject as described in
130and extension package. You can call all C<urxvt::term> methods on it, but 184the in the C<Extension Objects> section.
131its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
132object that is shared between all packages is stored in the C<term>
133member. It is, however, blessed intot he package of the extension script,
134so for all practical purposes you can treat an extension script as a class.
135 185
136All of them must return a boolean value. If it is true, then the event 186B<All> of these hooks must return a boolean value. If it is true, then the
137counts as being I<consumed>, and the invocation of other hooks is skipped, 187event counts as being I<consumed>, and the invocation of other hooks is
138and the relevant action might not be carried out by the C++ code. 188skipped, and the relevant action might not be carried out by the C++ code.
139 189
140When in doubt, return a false value (preferably C<()>). 190I<< When in doubt, return a false value (preferably C<()>). >>
141 191
142=over 4 192=over 4
143 193
144=item on_init $term 194=item on_init $term
145 195
180=item on_sel_extend $term 230=item on_sel_extend $term
181 231
182Called whenever the user tries to extend the selection (e.g. with a double 232Called whenever the user tries to extend the selection (e.g. with a double
183click) and is either supposed to return false (normal operation), or 233click) and is either supposed to return false (normal operation), or
184should extend the selection itelf and return true to suppress the built-in 234should extend the selection itelf and return true to suppress the built-in
185processing. 235processing. This can happen multiple times, as long as the callback
236returns true, it will be called on every further click by the user and is
237supposed to enlarge the selection more and more, if possible.
186 238
187See the F<selection> example extension. 239See the F<selection> example extension.
188 240
189=item on_view_change $term, $offset 241=item on_view_change $term, $offset
190 242
199than the scroll back buffer or the terminal. 251than the scroll back buffer or the terminal.
200 252
201It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 253It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
202$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total 254$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
203number of lines that will be in the scrollback buffer. 255number of lines that will be in the scrollback buffer.
204
205=item on_tty_activity $term *NYI*
206
207Called whenever the program(s) running in the urxvt window send output.
208 256
209=item on_osc_seq $term, $string 257=item on_osc_seq $term, $string
210 258
211Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = 259Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
212operating system command) is processed. Cursor position and other state 260operating system command) is processed. Cursor position and other state
225can filter/change and output the text yourself by returning a true value 273can filter/change and output the text yourself by returning a true value
226and calling C<< $term->scr_add_lines >> yourself. Please note that this 274and calling C<< $term->scr_add_lines >> yourself. Please note that this
227might be very slow, however, as your hook is called for B<all> text being 275might be very slow, however, as your hook is called for B<all> text being
228output. 276output.
229 277
278=item on_tt_write $term, $octets
279
280Called whenever some data is written to the tty/pty and can be used to
281suppress or filter tty input.
282
230=item on_line_update $term, $row 283=item on_line_update $term, $row
231 284
232Called whenever a line was updated or changed. Can be used to filter 285Called whenever a line was updated or changed. Can be used to filter
233screen output (e.g. underline urls or other useless stuff). Only lines 286screen output (e.g. underline urls or other useless stuff). Only lines
234that are being shown will be filtered, and, due to performance reasons, 287that are being shown will be filtered, and, due to performance reasons,
266=item on_focus_out $term 319=item on_focus_out $term
267 320
268Called wheneever the window loses keyboard focus, before rxvt-unicode does 321Called wheneever the window loses keyboard focus, before rxvt-unicode does
269focus out processing. 322focus out processing.
270 323
271=item on_key_press $term, $event, $octets 324=item on_key_press $term, $event, $keysym, $octets
272 325
273=item on_key_release $term, $event 326=item on_key_release $term, $event, $keysym
274 327
275=item on_button_press $term, $event 328=item on_button_press $term, $event
276 329
277=item on_button_release $term, $event 330=item on_button_release $term, $event
278 331
294 347
295subwindow. 348subwindow.
296 349
297=back 350=back
298 351
352=cut
353
354package urxvt;
355
356use utf8;
357use strict;
358use Carp ();
359use Scalar::Util ();
360use List::Util ();
361
362our $VERSION = 1;
363our $TERM;
364our @HOOKNAME;
365our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
366our %OPTION;
367
368our $LIBDIR;
369our $RESNAME;
370our $RESCLASS;
371our $RXVTNAME;
372
299=head2 Variables in the C<urxvt> Package 373=head2 Variables in the C<urxvt> Package
300 374
301=over 4 375=over 4
376
377=item $urxvt::LIBDIR
378
379The rxvt-unicode library directory, where, among other things, the perl
380modules and scripts are stored.
381
382=item $urxvt::RESCLASS, $urxvt::RESCLASS
383
384The resource class and name rxvt-unicode uses to look up X resources.
385
386=item $urxvt::RXVTNAME
387
388The basename of the installed binaries, usually C<urxvt>.
302 389
303=item $urxvt::TERM 390=item $urxvt::TERM
304 391
305The current terminal. This variable stores the current C<urxvt::term> 392The current terminal. This variable stores the current C<urxvt::term>
306object, whenever a callback/hook is executing. 393object, whenever a callback/hook is executing.
308=back 395=back
309 396
310=head2 Functions in the C<urxvt> Package 397=head2 Functions in the C<urxvt> Package
311 398
312=over 4 399=over 4
313
314=item $term = new urxvt [arg...]
315
316Creates a new terminal, very similar as if you had started it with
317C<system $binfile, arg...>. Croaks (and probably outputs an error message)
318if the new instance couldn't be created. Returns C<undef> if the new
319instance didn't initialise perl, and the terminal object otherwise. The
320C<init> and C<start> hooks will be called during the call.
321 400
322=item urxvt::fatal $errormessage 401=item urxvt::fatal $errormessage
323 402
324Fatally aborts execution with the given error message. Avoid at all 403Fatally aborts execution with the given error message. Avoid at all
325costs! The only time this is acceptable is when the terminal process 404costs! The only time this is acceptable is when the terminal process
331newline. The module also overwrites the C<warn> builtin with a function 410newline. The module also overwrites the C<warn> builtin with a function
332that calls this function. 411that calls this function.
333 412
334Using this function has the advantage that its output ends up in the 413Using this function has the advantage that its output ends up in the
335correct place, e.g. on stderr of the connecting urxvtc client. 414correct place, e.g. on stderr of the connecting urxvtc client.
415
416Messages have a size limit of 1023 bytes currently.
417
418=item $is_safe = urxvt::safe
419
420Returns true when it is safe to do potentially unsafe things, such as
421evaluating perl code specified by the user. This is true when urxvt was
422started setuid or setgid.
336 423
337=item $time = urxvt::NOW 424=item $time = urxvt::NOW
338 425
339Returns the "current time" (as per the event loop). 426Returns the "current time" (as per the event loop).
340 427
379 466
380=item $background = urxvt::GET_BASEBG $rend 467=item $background = urxvt::GET_BASEBG $rend
381 468
382Return the foreground/background colour index, respectively. 469Return the foreground/background colour index, respectively.
383 470
384=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) 471=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
385 472
386=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 473=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
387 474
388Replace the foreground/background colour in the rendition mask with the 475Replace the foreground/background colour in the rendition mask with the
389specified one. 476specified one.
390 477
391=item $value = urxvt::GET_CUSTOM ($rend) 478=item $value = urxvt::GET_CUSTOM $rend
392 479
393Return the "custom" value: Every rendition has 5 bits for use by 480Return the "custom" value: Every rendition has 5 bits for use by
394extensions. They can be set and changed as you like and are initially 481extensions. They can be set and changed as you like and are initially
395zero. 482zero.
396 483
397=item $rend = urxvt::SET_CUSTOM ($rend, $new_value) 484=item $rend = urxvt::SET_CUSTOM $rend, $new_value
398 485
399Change the custom value. 486Change the custom value.
400 487
401=back 488=back
402 489
403=cut 490=cut
404
405package urxvt;
406
407use utf8;
408use strict;
409use Scalar::Util ();
410use List::Util ();
411
412our $VERSION = 1;
413our $TERM;
414our @HOOKNAME;
415our %OPTION;
416our $LIBDIR;
417 491
418BEGIN { 492BEGIN {
419 urxvt->bootstrap; 493 urxvt->bootstrap;
420 494
421 # overwrite perl's warn 495 # overwrite perl's warn
423 my $msg = join "", @_; 497 my $msg = join "", @_;
424 $msg .= "\n" 498 $msg .= "\n"
425 unless $msg =~ /\n$/; 499 unless $msg =~ /\n$/;
426 urxvt::warn ($msg); 500 urxvt::warn ($msg);
427 }; 501 };
502
503 # %ENV is the original startup environment
504 delete $ENV{IFS};
505 delete $ENV{CDPATH};
506 delete $ENV{BASH_ENV};
507 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
428} 508}
429 509
430my @hook_count; 510my @hook_count;
431my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 511my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
432 512
433sub verbose { 513sub verbose {
434 my ($level, $msg) = @_; 514 my ($level, $msg) = @_;
435 warn "$msg\n" if $level <= $verbosity; 515 warn "$msg\n" if $level <= $verbosity;
436} 516}
437 517
438# find on_xxx subs in the package and register them
439# as hooks
440sub register_package($) {
441 my ($pkg) = @_;
442
443 for my $htype (0.. $#HOOKNAME) {
444 my $name = $HOOKNAME[$htype];
445
446 my $ref = $pkg->can ("on_" . lc $name)
447 or next;
448
449 $TERM->{_hook}[$htype]{$pkg} = $ref;
450 $hook_count[$htype]++
451 or set_should_invoke $htype, 1;
452 }
453}
454
455my $extension_pkg = "extension0000"; 518my $extension_pkg = "extension0000";
456my %extension_pkg; 519my %extension_pkg;
457 520
458# load a single script into its own package, once only 521# load a single script into its own package, once only
459sub extension_package($) { 522sub extension_package($) {
465 verbose 3, "loading extension '$path' into package '$pkg'"; 528 verbose 3, "loading extension '$path' into package '$pkg'";
466 529
467 open my $fh, "<:raw", $path 530 open my $fh, "<:raw", $path
468 or die "$path: $!"; 531 or die "$path: $!";
469 532
533 my $source = untaint
470 my $source = "package $pkg; use strict; use utf8;\n" 534 "package $pkg; use strict; use utf8;\n"
471 . "use base urxvt::term::proxy::;\n" 535 . "use base urxvt::term::extension::;\n"
472 . "#line 1 \"$path\"\n{\n" 536 . "#line 1 \"$path\"\n{\n"
473 . (do { local $/; <$fh> }) 537 . (do { local $/; <$fh> })
474 . "\n};\n1"; 538 . "\n};\n1";
475 539
540 eval $source
476 eval $source or die "$path: $@"; 541 or die "$path: $@";
477 542
478 $pkg 543 $pkg
479 } 544 }
480} 545}
481 546
487 my $htype = shift; 552 my $htype = shift;
488 553
489 if ($htype == 0) { # INIT 554 if ($htype == 0) { # INIT
490 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 555 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
491 556
492 my %want_ext; 557 my %ext_arg;
493 558
494 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 559 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
495 if ($_ eq "default") { 560 if ($_ eq "default") {
496 $want_ext{$_}++ for qw(selection option-popup); 561 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
497 } elsif (/^-(.*)$/) { 562 } elsif (/^-(.*)$/) {
498 delete $want_ext{$1}; 563 delete $ext_arg{$1};
564 } elsif (/^([^<]+)<(.*)>$/) {
565 push @{ $ext_arg{$1} }, $2;
499 } else { 566 } else {
500 $want_ext{$_}++; 567 $ext_arg{$_} ||= [];
501 } 568 }
502 } 569 }
503 570
504 for my $ext (keys %want_ext) { 571 while (my ($ext, $argv) = each %ext_arg) {
505 my @files = grep -f $_, map "$_/$ext", @dirs; 572 my @files = grep -f $_, map "$_/$ext", @dirs;
506 573
507 if (@files) { 574 if (@files) {
508 register_package extension_package $files[0]; 575 $TERM->register_package (extension_package $files[0], $argv);
509 } else { 576 } else {
510 warn "perl extension '$ext' not found in perl library search path\n"; 577 warn "perl extension '$ext' not found in perl library search path\n";
511 } 578 }
512 } 579 }
513 580
522 if $verbosity >= 10; 589 if $verbosity >= 10;
523 590
524 keys %$cb; 591 keys %$cb;
525 592
526 while (my ($pkg, $cb) = each %$cb) { 593 while (my ($pkg, $cb) = each %$cb) {
527 eval { 594 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }
528 $retval = $cb->(
529 $TERM->{_pkg}{$pkg} ||= do {
530 my $proxy = bless { }, $pkg;
531 Scalar::Util::weaken ($proxy->{term} = $TERM);
532 $proxy
533 },
534 @_,
535 ) and last; 595 and last;
596
597 if ($@) {
598 $TERM->ungrab; # better to lose the grab than the session
599 warn $@;
536 }; 600 }
537 warn $@ if $@;#d#
538 } 601 }
602
603 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
604 if $verbosity >= 11;
539 } 605 }
540 606
541 if ($htype == 1) { # DESTROY 607 if ($htype == 1) { # DESTROY
542 # remove hooks if unused
543 if (my $hook = $TERM->{_hook}) { 608 if (my $hook = delete $TERM->{_hook}) {
544 for my $htype (0..$#$hook) { 609 for my $htype (0..$#$hook) {
545 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 610 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
546 or set_should_invoke $htype, 0; 611 or set_should_invoke $htype, 0;
547 } 612 }
548 } 613 }
555 } 620 }
556 621
557 $retval 622 $retval
558} 623}
559 624
560# urxvt::term::proxy 625sub exec_async(@) {
626 my $pid = fork;
561 627
562sub urxvt::term::proxy::AUTOLOAD { 628 return
563 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 629 if !defined $pid or $pid;
630
631 %ENV = %{ $TERM->env };
632
633 exec @_;
634 _exit 255;
635}
636
637# urxvt::term::extension
638
639package urxvt::term::extension;
640
641sub enable {
642 my ($self, %hook) = @_;
643 my $pkg = $self->{_pkg};
644
645 while (my ($name, $cb) = each %hook) {
646 my $htype = $HOOKTYPE{uc $name};
647 defined $htype
648 or Carp::croak "unsupported hook type '$name'";
649
650 unless (exists $self->{term}{_hook}[$htype]{$pkg}) {
651 $hook_count[$htype]++
652 or urxvt::set_should_invoke $htype, 1;
653 }
654
655 $self->{term}{_hook}[$htype]{$pkg} = $cb;
656 }
657}
658
659sub disable {
660 my ($self, @hook) = @_;
661 my $pkg = $self->{_pkg};
662
663 for my $name (@hook) {
664 my $htype = $HOOKTYPE{uc $name};
665 defined $htype
666 or Carp::croak "unsupported hook type '$name'";
667
668 if (delete $self->{term}{_hook}[$htype]{$pkg}) {
669 --$hook_count[$htype]
670 or urxvt::set_should_invoke $htype, 0;
671 }
672 }
673}
674
675our $AUTOLOAD;
676
677sub AUTOLOAD {
678 $AUTOLOAD =~ /:([^:]+)$/
564 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 679 or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
565 680
566 eval qq{ 681 eval qq{
567 sub $urxvt::term::proxy::AUTOLOAD { 682 sub $AUTOLOAD {
568 my \$proxy = shift; 683 my \$proxy = shift;
569 \$proxy->{term}->$1 (\@_) 684 \$proxy->{term}->$1 (\@_)
570 } 685 }
571 1 686 1
572 } or die "FATAL: unable to compile method forwarder: $@"; 687 } or die "FATAL: unable to compile method forwarder: $@";
573 688
574 goto &$urxvt::term::proxy::AUTOLOAD; 689 goto &$AUTOLOAD;
690}
691
692sub DESTROY {
693 # nop
575} 694}
576 695
577# urxvt::destroy_hook 696# urxvt::destroy_hook
578 697
579sub urxvt::destroy_hook::DESTROY { 698sub urxvt::destroy_hook::DESTROY {
588 707
589=head2 The C<urxvt::anyevent> Class 708=head2 The C<urxvt::anyevent> Class
590 709
591The sole purpose of this class is to deliver an interface to the 710The sole purpose of this class is to deliver an interface to the
592C<AnyEvent> module - any module using it will work inside urxvt without 711C<AnyEvent> module - any module using it will work inside urxvt without
593further work. The only exception is that you cannot wait on condition 712further programming. The only exception is that you cannot wait on
594variables, but non-blocking condvar use is ok. What this means is that you 713condition variables, but non-blocking condvar use is ok. What this means
595cannot use blocking APIs, but the non-blocking variant should work. 714is that you cannot use blocking APIs, but the non-blocking variant should
715work.
596 716
597=cut 717=cut
598 718
599our $VERSION = 1; 719our $VERSION = 1;
600 720
645 ${$_[0]}++; 765 ${$_[0]}++;
646} 766}
647 767
648sub urxvt::anyevent::condvar::wait { 768sub urxvt::anyevent::condvar::wait {
649 unless (${$_[0]}) { 769 unless (${$_[0]}) {
650 require Carp;
651 Carp::croak ("AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API"); 770 Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
652 } 771 }
653} 772}
654 773
655package urxvt::term; 774package urxvt::term;
656 775
657=head2 The C<urxvt::term> Class 776=head2 The C<urxvt::term> Class
658 777
659=over 4 778=over 4
660 779
780=cut
781
782# find on_xxx subs in the package and register them
783# as hooks
784sub register_package {
785 my ($self, $pkg, $argv) = @_;
786
787 my $proxy = bless {
788 _pkg => $pkg,
789 argv => $argv,
790 }, $pkg;
791 Scalar::Util::weaken ($proxy->{term} = $self);
792
793 $self->{_pkg}{$pkg} = $proxy;
794
795 for my $name (@HOOKNAME) {
796 if (my $ref = $pkg->can ("on_" . lc $name)) {
797 $proxy->enable ($name => $ref);
798 }
799 }
800}
801
802=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
803
804Creates a new terminal, very similar as if you had started it with system
805C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
806hash which defines the environment of the new terminal.
807
808Croaks (and probably outputs an error message) if the new instance
809couldn't be created. Returns C<undef> if the new instance didn't
810initialise perl, and the terminal object otherwise. The C<init> and
811C<start> hooks will be called during this call.
812
813=cut
814
815sub new {
816 my ($class, $env, @args) = @_;
817
818 _new ([ map "$_=$env->{$_}", keys %$env ], @args);
819}
820
661=item $term->destroy 821=item $term->destroy
662 822
663Destroy the terminal object (close the window, free resources etc.). 823Destroy the terminal object (close the window, free resources
824etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
825watchers (timers, io watchers) are still active.
664 826
665=item $isset = $term->option ($optval[, $set]) 827=item $isset = $term->option ($optval[, $set])
666 828
667Returns true if the option specified by C<$optval> is enabled, and 829Returns true if the option specified by C<$optval> is enabled, and
668optionally change it. All option values are stored by name in the hash 830optionally change it. All option values are stored by name in the hash
718 my ($self, $name) = (shift, shift); 880 my ($self, $name) = (shift, shift);
719 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 881 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
720 &urxvt::term::_resource 882 &urxvt::term::_resource
721} 883}
722 884
885=item $value = $term->x_resource ($pattern)
886
887Returns the X-Resource for the given pattern, excluding the program or
888class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
889same value as used by this instance of rxvt-unicode. Returns C<undef> if no
890resource with that pattern exists.
891
892This method should only be called during the C<on_start> hook, as there is
893only one resource database per display, and later invocations might return
894the wrong resources.
895
896=item $success = $term->parse_keysym ($keysym_spec, $command_string)
897
898Adds a keymap translation exactly as specified via a resource. See the
899C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
900
723=item $rend = $term->rstyle ([$new_rstyle]) 901=item $rend = $term->rstyle ([$new_rstyle])
724 902
725Return and optionally change the current rendition. Text that is output by 903Return and optionally change the current rendition. Text that is output by
726the terminal application will use this style. 904the terminal application will use this style.
727 905
737=item ($row, $col) = $term->selection_end ([$row, $col]) 915=item ($row, $col) = $term->selection_end ([$row, $col])
738 916
739Return the current values of the selection mark, begin or end positions, 917Return the current values of the selection mark, begin or end positions,
740and optionally set them to new values. 918and optionally set them to new values.
741 919
920=item $term->selection_make ($eventtime[, $rectangular])
921
922Tries to make a selection as set by C<selection_beg> and
923C<selection_end>. If C<$rectangular> is true (default: false), a
924rectangular selection will be made. This is the prefered function to make
925a selection.
926
742=item $success = $term->selection_grab ($eventtime) 927=item $success = $term->selection_grab ($eventtime)
743 928
744Try to request the primary selection from the server (for example, as set 929Try to request the primary selection text from the server (for example, as
745by the next method). 930set by the next method). No visual feedback will be given. This function
931is mostly useful from within C<on_sel_grab> hooks.
746 932
747=item $oldtext = $term->selection ([$newtext]) 933=item $oldtext = $term->selection ([$newtext])
748 934
749Return the current selection text and optionally replace it by C<$newtext>. 935Return the current selection text and optionally replace it by C<$newtext>.
750 936
751#=item $term->overlay ($x, $y, $text) 937=item $term->overlay_simple ($x, $y, $text)
752# 938
753#Create a simple multi-line overlay box. See the next method for details. 939Create a simple multi-line overlay box. See the next method for details.
754# 940
755#=cut 941=cut
756# 942
757#sub urxvt::term::scr_overlay { 943sub overlay_simple {
758# my ($self, $x, $y, $text) = @_; 944 my ($self, $x, $y, $text) = @_;
759# 945
760# my @lines = split /\n/, $text; 946 my @lines = split /\n/, $text;
761# 947
762# my $w = 0; 948 my $w = List::Util::max map $self->strwidth ($_), @lines;
763# for (map $self->strwidth ($_), @lines) { 949
764# $w = $_ if $w < $_;
765# }
766#
767# $self->scr_overlay_new ($x, $y, $w, scalar @lines); 950 my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
768# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 951 $overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
769#} 952
953 $overlay
954}
770 955
771=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 956=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
772 957
773Create a new (empty) overlay at the given position with the given 958Create a new (empty) overlay at the given position with the given
774width/height. C<$rstyle> defines the initial rendition style 959width/height. C<$rstyle> defines the initial rendition style
841 1026
842=item $string = $term->locale_decode ($octets) 1027=item $string = $term->locale_decode ($octets)
843 1028
844Convert the given locale-encoded octets into a perl string. 1029Convert the given locale-encoded octets into a perl string.
845 1030
1031=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
1032
1033XORs the rendition values in the given span with the provided value
1034(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
1035refresh hooks to provide effects similar to the selection.
1036
1037=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
1038
1039Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1040whitespace will additionally be xored with the C<$rstyle2>, which defaults
1041to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1042it instead. Both styles I<MUST NOT> contain font styles.
1043
1044=item $term->scr_bell
1045
1046Ring the bell!
1047
846=item $term->scr_add_lines ($string) 1048=item $term->scr_add_lines ($string)
847 1049
848Write the given text string to the screen, as if output by the application 1050Write the given text string to the screen, as if output by the application
849running inside the terminal. It may not contain command sequences (escape 1051running inside the terminal. It may not contain command sequences (escape
850codes), but is free to use line feeds, carriage returns and tabs. The 1052codes), but is free to use line feeds, carriage returns and tabs. The
864 1066
865Write the octets given in C<$data> to the tty (i.e. as program input). To 1067Write the octets given in C<$data> to the tty (i.e. as program input). To
866pass characters instead of octets, you should convert your strings first 1068pass characters instead of octets, you should convert your strings first
867to the locale-specific encoding using C<< $term->locale_encode >>. 1069to the locale-specific encoding using C<< $term->locale_encode >>.
868 1070
1071=item $old_events = $term->pty_ev_events ([$new_events])
1072
1073Replaces the event mask of the pty watcher by the given event mask. Can
1074be used to suppress input and output handling to the pty/tty. See the
1075description of C<< urxvt::timer->events >>. Make sure to always restore
1076the previous value.
1077
869=item $windowid = $term->parent 1078=item $windowid = $term->parent
870 1079
871Return the window id of the toplevel window. 1080Return the window id of the toplevel window.
872 1081
873=item $windowid = $term->vt 1082=item $windowid = $term->vt
897=item $nrow_plus_saveLines = $term->total_rows 1106=item $nrow_plus_saveLines = $term->total_rows
898 1107
899=item $lines_in_scrollback = $term->nsaved 1108=item $lines_in_scrollback = $term->nsaved
900 1109
901Return various integers describing terminal characteristics. 1110Return various integers describing terminal characteristics.
1111
1112=item $x_display = $term->display_id
1113
1114Return the DISPLAY used by rxvt-unicode.
1115
1116=item $lc_ctype = $term->locale
1117
1118Returns the LC_CTYPE category string used by this rxvt-unicode.
1119
1120=item $env = $term->env
1121
1122Returns a copy of the environment in effect for the terminal as a hashref
1123similar to C<\%ENV>.
1124
1125=cut
1126
1127sub env {
1128 if (my $env = $_[0]->_env) {
1129 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
1130 } else {
1131 +{ %ENV }
1132 }
1133}
902 1134
903=item $modifiermask = $term->ModLevel3Mask 1135=item $modifiermask = $term->ModLevel3Mask
904 1136
905=item $modifiermask = $term->ModMetaMask 1137=item $modifiermask = $term->ModMetaMask
906 1138
999Return the row number of the first/last row of the line, respectively. 1231Return the row number of the first/last row of the line, respectively.
1000 1232
1001=item $offset = $line->offset_of ($row, $col) 1233=item $offset = $line->offset_of ($row, $col)
1002 1234
1003Returns the character offset of the given row|col pair within the logical 1235Returns the character offset of the given row|col pair within the logical
1004line. 1236line. Works for rows outside the line, too, and returns corresponding
1237offsets outside the string.
1005 1238
1006=item ($row, $col) = $line->coord_of ($offset) 1239=item ($row, $col) = $line->coord_of ($offset)
1007 1240
1008Translates a string offset into terminal coordinates again. 1241Translates a string offset into terminal coordinates again.
1009 1242
1083 $offset / $self->{ncol} + $self->{beg}, 1316 $offset / $self->{ncol} + $self->{beg},
1084 $offset % $self->{ncol} 1317 $offset % $self->{ncol}
1085 ) 1318 )
1086} 1319}
1087 1320
1088=item ($row, $col) = $line->coord_of ($offset)
1089=item $text = $term->special_encode $string 1321=item $text = $term->special_encode $string
1090 1322
1091Converts a perl string into the special encoding used by rxvt-unicode, 1323Converts a perl string into the special encoding used by rxvt-unicode,
1092where one character corresponds to one screen cell. See 1324where one character corresponds to one screen cell. See
1093C<< $term->ROW_t >> for details. 1325C<< $term->ROW_t >> for details.
1095=item $string = $term->special_decode $text 1327=item $string = $term->special_decode $text
1096 1328
1097Converts rxvt-unicodes text reprsentation into a perl string. See 1329Converts rxvt-unicodes text reprsentation into a perl string. See
1098C<< $term->ROW_t >> for details. 1330C<< $term->ROW_t >> for details.
1099 1331
1332=item $success = $term->grab_button ($button, $modifiermask)
1333
1334Registers a synchronous button grab. See the XGrabButton manpage.
1335
1336=item $success = $term->grab ($eventtime[, $sync])
1337
1338Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1339synchronous (C<$sync> is true). Also remembers the grab timestampe.
1340
1341=item $term->allow_events_async
1342
1343Calls XAllowEvents with AsyncBoth for the most recent grab.
1344
1345=item $term->allow_events_sync
1346
1347Calls XAllowEvents with SyncBoth for the most recent grab.
1348
1349=item $term->allow_events_replay
1350
1351Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1352recent grab.
1353
1354=item $term->ungrab
1355
1356Calls XUngrab for the most recent grab. Is called automatically on
1357evaluation errors, as it is better to lose the grab in the error case as
1358the session.
1359
1100=back 1360=back
1101 1361
1102=cut 1362=cut
1103 1363
1104package urxvt::popup; 1364package urxvt::popup;
1119 $item->{render} ||= sub { $_[0]{text} }; 1379 $item->{render} ||= sub { $_[0]{text} };
1120 1380
1121 push @{ $self->{item} }, $item; 1381 push @{ $self->{item} }, $item;
1122} 1382}
1123 1383
1124sub add_separator { 1384=item $popup->add_title ($title)
1125 my ($self, $sep) = @_;
1126 1385
1127 $sep ||= "═"; 1386Adds a non-clickable title to the popup.
1128 1387
1129 $self->add_item ({ 1388=cut
1130 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1131 text => "",
1132 render => sub { $sep x $urxvt::TERM->ncol },
1133 activate => sub { },
1134 });
1135}
1136 1389
1137sub add_title { 1390sub add_title {
1138 my ($self, $title) = @_; 1391 my ($self, $title) = @_;
1139 1392
1140 $self->add_item ({ 1393 $self->add_item ({
1142 text => $title, 1395 text => $title,
1143 activate => sub { }, 1396 activate => sub { },
1144 }); 1397 });
1145} 1398}
1146 1399
1400=item $popup->add_separator ([$sepchr])
1401
1402Creates a separator, optionally using the character given as C<$sepchr>.
1403
1404=cut
1405
1406sub add_separator {
1407 my ($self, $sep) = @_;
1408
1409 $sep ||= "=";
1410
1411 $self->add_item ({
1412 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1413 text => "",
1414 render => sub { $sep x $self->{term}->ncol },
1415 activate => sub { },
1416 });
1417}
1418
1419=item $popup->add_button ($text, $cb)
1420
1421Adds a clickable button to the popup. C<$cb> is called whenever it is
1422selected.
1423
1424=cut
1425
1147sub add_button { 1426sub add_button {
1148 my ($self, $text, $cb) = @_; 1427 my ($self, $text, $cb) = @_;
1149 1428
1150 $self->add_item ({ type => "button", text => "[ $text ]", activate => $cb}); 1429 $self->add_item ({ type => "button", text => $text, activate => $cb});
1151} 1430}
1431
1432=item $popup->add_toggle ($text, $cb, $initial_value)
1433
1434Adds a toggle/checkbox item to the popup. Teh callback gets called
1435whenever it gets toggled, with a boolean indicating its value as its first
1436argument.
1437
1438=cut
1152 1439
1153sub add_toggle { 1440sub add_toggle {
1154 my ($self, $text, $cb, $value) = @_; 1441 my ($self, $text, $cb, $value) = @_;
1155 1442
1156 my $item; $item = { 1443 my $item; $item = {
1157 type => "button", 1444 type => "button",
1158 text => " $text", 1445 text => " $text",
1159 value => $value, 1446 value => $value,
1160 render => sub { ($item->{value} ? "* " : " ") . $text }, 1447 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1161 activate => sub { $cb->($item->{value} = !$item->{value}); }, 1448 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1162 }; 1449 };
1163 1450
1164 $self->add_item ($item); 1451 $self->add_item ($item);
1165} 1452}
1453
1454=item $popup->show
1455
1456Displays the popup (which is initially hidden).
1457
1458=cut
1166 1459
1167sub show { 1460sub show {
1168 my ($self) = @_; 1461 my ($self) = @_;
1169 1462
1170 local $urxvt::popup::self = $self; 1463 local $urxvt::popup::self = $self;
1171 1464
1465 my $env = $self->{term}->env;
1466 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1467 delete $env->{LC_ALL};
1468 $env->{LC_CTYPE} = $self->{term}->locale;
1469
1470 urxvt::term->new ($env, $self->{term}->resource ("name"),
1172 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1471 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,
1173 "--transient-for" => $self->{term}->parent, 1472 "--transient-for" => $self->{term}->parent,
1473 "-display" => $self->{term}->display_id,
1174 "-pe" => "urxvt-popup") 1474 "-pe" => "urxvt-popup")
1175 or die "unable to create popup window\n"; 1475 or die "unable to create popup window\n";
1176} 1476}
1177 1477
1178sub DESTROY { 1478sub DESTROY {
1179 my ($self) = @_; 1479 my ($self) = @_;
1180 1480
1481 delete $self->{term}{_destroy}{$self};
1181 $self->{term}->ungrab; 1482 $self->{term}->ungrab;
1182} 1483}
1484
1485=back
1183 1486
1184=head2 The C<urxvt::timer> Class 1487=head2 The C<urxvt::timer> Class
1185 1488
1186This class implements timer watchers/events. Time is represented as a 1489This class implements timer watchers/events. Time is represented as a
1187fractional number of seconds since the epoch. Example: 1490fractional number of seconds since the epoch. Example:
1240 1543
1241 $term->{socket} = ... 1544 $term->{socket} = ...
1242 $term->{iow} = urxvt::iow 1545 $term->{iow} = urxvt::iow
1243 ->new 1546 ->new
1244 ->fd (fileno $term->{socket}) 1547 ->fd (fileno $term->{socket})
1245 ->events (1) # wait for read data 1548 ->events (urxvt::EVENT_READ)
1246 ->start 1549 ->start
1247 ->cb (sub { 1550 ->cb (sub {
1248 my ($iow, $revents) = @_; 1551 my ($iow, $revents) = @_;
1249 # $revents must be 1 here, no need to check 1552 # $revents must be 1 here, no need to check
1250 sysread $term->{socket}, my $buf, 8192 1553 sysread $term->{socket}, my $buf, 8192
1267 1570
1268Set the filedescriptor (not handle) to watch. 1571Set the filedescriptor (not handle) to watch.
1269 1572
1270=item $iow = $iow->events ($eventmask) 1573=item $iow = $iow->events ($eventmask)
1271 1574
1272Set the event mask to watch. Bit #0 (value C<1>) enables watching for read 1575Set the event mask to watch. The only allowed values are
1273data, Bit #1 (value C<2>) enables watching for write data. 1576C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
1577together, or C<urxvt::EVENT_NONE>.
1274 1578
1275=item $iow = $iow->start 1579=item $iow = $iow->start
1276 1580
1277Start watching for requested events on the given handle. 1581Start watching for requested events on the given handle.
1278 1582
1289This variable controls the verbosity level of the perl extension. Higher 1593This variable controls the verbosity level of the perl extension. Higher
1290numbers indicate more verbose output. 1594numbers indicate more verbose output.
1291 1595
1292=over 4 1596=over 4
1293 1597
1294=item =0 - only fatal messages 1598=item == 0 - fatal messages
1295 1599
1296=item =3 - script loading and management 1600=item >= 3 - script loading and management
1297 1601
1298=item =10 - all events received 1602=item >=10 - all called hooks
1603
1604=item >=11 - hook reutrn values
1299 1605
1300=back 1606=back
1301 1607
1302=head1 AUTHOR 1608=head1 AUTHOR
1303 1609

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