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Revision 1.61 by root, Mon Jan 9 01:36:56 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
64runtime. 64runtime.
65 65
66=item selection-popup (enabled by default) 66=item selection-popup (enabled by default)
67 67
68Binds a popup menu to Ctrl-Button3 that lets you convert the selection 68Binds a popup menu to Ctrl-Button3 that lets you convert the selection
69text into various other formats/action. 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.
70 82
71=item digital-clock 83=item digital-clock
72 84
73Displays a digital clock using the built-in overlay. 85Displays a digital clock using the built-in overlay.
74 86
75=item mark-urls 87=item mark-urls
76 88
77Uses 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.
78 92
79=item block-graphics-to-ascii 93=item block-graphics-to-ascii
80 94
81A 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,
82by replacing all line-drawing characters (U+2500 .. U+259F) by a 96by replacing all line-drawing characters (U+2500 .. U+259F) by a
87Displays 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
88window. Illustrates overwriting the refresh callbacks to create your own 102window. Illustrates overwriting the refresh callbacks to create your own
89overlays or changes. 103overlays or changes.
90 104
91=back 105=back
106
107=head1 API DOCUMENTATION
92 108
93=head2 General API Considerations 109=head2 General API Considerations
94 110
95All objects (such as terminals, time watchers etc.) are typical 111All objects (such as terminals, time watchers etc.) are typical
96reference-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
109=over 4 125=over 4
110 126
111=item $text 127=item $text
112 128
113Rxvt-unicodes special way of encoding text, where one "unicode" character 129Rxvt-unicodes special way of encoding text, where one "unicode" character
114always 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.
115 131
116=item $string 132=item $string
117 133
118A perl text string, with an emphasis on I<text>. It can store all unicode 134A perl text string, with an emphasis on I<text>. It can store all unicode
119characters and is to be distinguished with text encoded in a specific 135characters and is to be distinguished with text encoded in a specific
124Either binary data or - more common - a text string encoded in a 140Either binary data or - more common - a text string encoded in a
125locale-specific way. 141locale-specific way.
126 142
127=back 143=back
128 144
145=head2 Extension Objects
146
147Very perl extension is a perl class. A separate perl object is created
148for each terminal and each extension and passed as the first parameter to
149hooks. So extensions can use their C<$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
129=head2 Hooks 178=head2 Hooks
130 179
131The following subroutines can be declared in extension files, and will be 180The following subroutines can be declared in extension files, and will be
132called whenever the relevant event happens. 181called whenever the relevant event happens.
133 182
134The 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
135and extension package. You can call all C<urxvt::term> methods on it, but 184the in the C<Extension Objects> section.
136its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
137object that is shared between all packages is stored in the C<term>
138member. It is, however, blessed intot he package of the extension script,
139so for all practical purposes you can treat an extension script as a class.
140 185
141All 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
142counts 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
143and 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.
144 189
145When in doubt, return a false value (preferably C<()>). 190I<< When in doubt, return a false value (preferably C<()>). >>
146 191
147=over 4 192=over 4
148 193
149=item on_init $term 194=item on_init $term
150 195
185=item on_sel_extend $term 230=item on_sel_extend $term
186 231
187Called 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
188click) and is either supposed to return false (normal operation), or 233click) and is either supposed to return false (normal operation), or
189should 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
190processing. 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.
191 238
192See the F<selection> example extension. 239See the F<selection> example extension.
193 240
194=item on_view_change $term, $offset 241=item on_view_change $term, $offset
195 242
226can 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
227and calling C<< $term->scr_add_lines >> yourself. Please note that this 274and calling C<< $term->scr_add_lines >> yourself. Please note that this
228might 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
229output. 276output.
230 277
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
231=item on_line_update $term, $row 283=item on_line_update $term, $row
232 284
233Called 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
234screen output (e.g. underline urls or other useless stuff). Only lines 286screen output (e.g. underline urls or other useless stuff). Only lines
235that are being shown will be filtered, and, due to performance reasons, 287that are being shown will be filtered, and, due to performance reasons,
267=item on_focus_out $term 319=item on_focus_out $term
268 320
269Called wheneever the window loses keyboard focus, before rxvt-unicode does 321Called wheneever the window loses keyboard focus, before rxvt-unicode does
270focus out processing. 322focus out processing.
271 323
272=item on_key_press $term, $event, $octets 324=item on_key_press $term, $event, $keysym, $octets
273 325
274=item on_key_release $term, $event 326=item on_key_release $term, $event, $keysym
275 327
276=item on_button_press $term, $event 328=item on_button_press $term, $event
277 329
278=item on_button_release $term, $event 330=item on_button_release $term, $event
279 331
295 347
296subwindow. 348subwindow.
297 349
298=back 350=back
299 351
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
300=head2 Variables in the C<urxvt> Package 373=head2 Variables in the C<urxvt> Package
301 374
302=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>.
303 389
304=item $urxvt::TERM 390=item $urxvt::TERM
305 391
306The current terminal. This variable stores the current C<urxvt::term> 392The current terminal. This variable stores the current C<urxvt::term>
307object, whenever a callback/hook is executing. 393object, whenever a callback/hook is executing.
309=back 395=back
310 396
311=head2 Functions in the C<urxvt> Package 397=head2 Functions in the C<urxvt> Package
312 398
313=over 4 399=over 4
314
315=item $term = new urxvt [arg...]
316
317Creates a new terminal, very similar as if you had started it with
318C<system $binfile, arg...>. Croaks (and probably outputs an error message)
319if the new instance couldn't be created. Returns C<undef> if the new
320instance didn't initialise perl, and the terminal object otherwise. The
321C<init> and C<start> hooks will be called during the call.
322 400
323=item urxvt::fatal $errormessage 401=item urxvt::fatal $errormessage
324 402
325Fatally aborts execution with the given error message. Avoid at all 403Fatally aborts execution with the given error message. Avoid at all
326costs! The only time this is acceptable is when the terminal process 404costs! The only time this is acceptable is when the terminal process
332newline. The module also overwrites the C<warn> builtin with a function 410newline. The module also overwrites the C<warn> builtin with a function
333that calls this function. 411that calls this function.
334 412
335Using 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
336correct 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.
337 423
338=item $time = urxvt::NOW 424=item $time = urxvt::NOW
339 425
340Returns the "current time" (as per the event loop). 426Returns the "current time" (as per the event loop).
341 427
380 466
381=item $background = urxvt::GET_BASEBG $rend 467=item $background = urxvt::GET_BASEBG $rend
382 468
383Return the foreground/background colour index, respectively. 469Return the foreground/background colour index, respectively.
384 470
385=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) 471=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
386 472
387=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 473=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
388 474
389Replace the foreground/background colour in the rendition mask with the 475Replace the foreground/background colour in the rendition mask with the
390specified one. 476specified one.
391 477
392=item $value = urxvt::GET_CUSTOM ($rend) 478=item $value = urxvt::GET_CUSTOM $rend
393 479
394Return the "custom" value: Every rendition has 5 bits for use by 480Return the "custom" value: Every rendition has 5 bits for use by
395extensions. 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
396zero. 482zero.
397 483
398=item $rend = urxvt::SET_CUSTOM ($rend, $new_value) 484=item $rend = urxvt::SET_CUSTOM $rend, $new_value
399 485
400Change the custom value. 486Change the custom value.
401 487
402=back 488=back
403 489
404=cut 490=cut
405
406package urxvt;
407
408use utf8;
409use strict;
410use Scalar::Util ();
411use List::Util ();
412
413our $VERSION = 1;
414our $TERM;
415our @HOOKNAME;
416our %OPTION;
417our $LIBDIR;
418 491
419BEGIN { 492BEGIN {
420 urxvt->bootstrap; 493 urxvt->bootstrap;
421 494
422 # overwrite perl's warn 495 # overwrite perl's warn
425 $msg .= "\n" 498 $msg .= "\n"
426 unless $msg =~ /\n$/; 499 unless $msg =~ /\n$/;
427 urxvt::warn ($msg); 500 urxvt::warn ($msg);
428 }; 501 };
429 502
503 # %ENV is the original startup environment
430 delete $ENV{IFS}; 504 delete $ENV{IFS};
431 delete $ENV{CDPATH}; 505 delete $ENV{CDPATH};
432 delete $ENV{BASH_ENV}; 506 delete $ENV{BASH_ENV};
433 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin"; 507 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
434} 508}
439sub verbose { 513sub verbose {
440 my ($level, $msg) = @_; 514 my ($level, $msg) = @_;
441 warn "$msg\n" if $level <= $verbosity; 515 warn "$msg\n" if $level <= $verbosity;
442} 516}
443 517
444# find on_xxx subs in the package and register them
445# as hooks
446sub register_package($) {
447 my ($pkg) = @_;
448
449 for my $htype (0.. $#HOOKNAME) {
450 my $name = $HOOKNAME[$htype];
451
452 my $ref = $pkg->can ("on_" . lc $name)
453 or next;
454
455 $TERM->{_hook}[$htype]{$pkg} = $ref;
456 $hook_count[$htype]++
457 or set_should_invoke $htype, 1;
458 }
459}
460
461my $extension_pkg = "extension0000"; 518my $extension_pkg = "extension0000";
462my %extension_pkg; 519my %extension_pkg;
463 520
464# load a single script into its own package, once only 521# load a single script into its own package, once only
465sub extension_package($) { 522sub extension_package($) {
471 verbose 3, "loading extension '$path' into package '$pkg'"; 528 verbose 3, "loading extension '$path' into package '$pkg'";
472 529
473 open my $fh, "<:raw", $path 530 open my $fh, "<:raw", $path
474 or die "$path: $!"; 531 or die "$path: $!";
475 532
533 my $source = untaint
476 my $source = untaint "package $pkg; use strict; use utf8;\n" 534 "package $pkg; use strict; use utf8;\n"
477 . "use base urxvt::term::proxy::;\n" 535 . "use base urxvt::term::extension::;\n"
478 . "#line 1 \"$path\"\n{\n" 536 . "#line 1 \"$path\"\n{\n"
479 . (do { local $/; <$fh> }) 537 . (do { local $/; <$fh> })
480 . "\n};\n1"; 538 . "\n};\n1";
481 539
540 eval $source
482 eval $source or die "$path: $@"; 541 or die "$path: $@";
483 542
484 $pkg 543 $pkg
485 } 544 }
486} 545}
487 546
493 my $htype = shift; 552 my $htype = shift;
494 553
495 if ($htype == 0) { # INIT 554 if ($htype == 0) { # INIT
496 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 555 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
497 556
498 my %want_ext; 557 my %ext_arg;
499 558
500 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 559 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
501 if ($_ eq "default") { 560 if ($_ eq "default") {
502 $want_ext{$_}++ for qw(selection option-popup selection-popup); 561 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
503 } elsif (/^-(.*)$/) { 562 } elsif (/^-(.*)$/) {
504 delete $want_ext{$1}; 563 delete $ext_arg{$1};
564 } elsif (/^([^<]+)<(.*)>$/) {
565 push @{ $ext_arg{$1} }, $2;
505 } else { 566 } else {
506 $want_ext{$_}++; 567 $ext_arg{$_} ||= [];
507 } 568 }
508 } 569 }
509 570
510 for my $ext (keys %want_ext) { 571 while (my ($ext, $argv) = each %ext_arg) {
511 my @files = grep -f $_, map "$_/$ext", @dirs; 572 my @files = grep -f $_, map "$_/$ext", @dirs;
512 573
513 if (@files) { 574 if (@files) {
514 register_package extension_package $files[0]; 575 $TERM->register_package (extension_package $files[0], $argv);
515 } else { 576 } else {
516 warn "perl extension '$ext' not found in perl library search path\n"; 577 warn "perl extension '$ext' not found in perl library search path\n";
517 } 578 }
518 } 579 }
519 580
528 if $verbosity >= 10; 589 if $verbosity >= 10;
529 590
530 keys %$cb; 591 keys %$cb;
531 592
532 while (my ($pkg, $cb) = each %$cb) { 593 while (my ($pkg, $cb) = each %$cb) {
533 eval { 594 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }
534 $retval = $cb->(
535 $TERM->{_pkg}{$pkg} ||= do {
536 my $proxy = bless { }, $pkg;
537 Scalar::Util::weaken ($proxy->{term} = $TERM);
538 $proxy
539 },
540 @_,
541 ) and last; 595 and last;
542 }; 596
543 if ($@) { 597 if ($@) {
544 $TERM->ungrab; # better to lose the grab than the session 598 $TERM->ungrab; # better to lose the grab than the session
545 warn $@; 599 warn $@;
546 } 600 }
547 } 601 }
602
603 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
604 if $verbosity >= 11;
548 } 605 }
549 606
550 if ($htype == 1) { # DESTROY 607 if ($htype == 1) { # DESTROY
551 # remove hooks if unused
552 if (my $hook = $TERM->{_hook}) { 608 if (my $hook = delete $TERM->{_hook}) {
553 for my $htype (0..$#$hook) { 609 for my $htype (0..$#$hook) {
554 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 610 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
555 or set_should_invoke $htype, 0; 611 or set_should_invoke $htype, 0;
556 } 612 }
557 } 613 }
564 } 620 }
565 621
566 $retval 622 $retval
567} 623}
568 624
569# urxvt::term::proxy 625sub exec_async(@) {
626 my $pid = fork;
570 627
571sub urxvt::term::proxy::AUTOLOAD { 628 return
572 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 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 $AUTOLOAD =~ /:([^:]+)$/
573 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 679 or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
574 680
575 eval qq{ 681 eval qq{
576 sub $urxvt::term::proxy::AUTOLOAD { 682 sub $AUTOLOAD {
577 my \$proxy = shift; 683 my \$proxy = shift;
578 \$proxy->{term}->$1 (\@_) 684 \$proxy->{term}->$1 (\@_)
579 } 685 }
580 1 686 1
581 } or die "FATAL: unable to compile method forwarder: $@"; 687 } or die "FATAL: unable to compile method forwarder: $@";
582 688
583 goto &$urxvt::term::proxy::AUTOLOAD; 689 goto &$AUTOLOAD;
584} 690}
585 691
586sub urxvt::term::proxy::DESTROY { 692sub DESTROY {
587 # nop 693 # nop
588} 694}
589 695
590# urxvt::destroy_hook 696# urxvt::destroy_hook
591 697
601 707
602=head2 The C<urxvt::anyevent> Class 708=head2 The C<urxvt::anyevent> Class
603 709
604The 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
605C<AnyEvent> module - any module using it will work inside urxvt without 711C<AnyEvent> module - any module using it will work inside urxvt without
606further work. The only exception is that you cannot wait on condition 712further programming. The only exception is that you cannot wait on
607variables, 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
608cannot use blocking APIs, but the non-blocking variant should work. 714is that you cannot use blocking APIs, but the non-blocking variant should
715work.
609 716
610=cut 717=cut
611 718
612our $VERSION = 1; 719our $VERSION = 1;
613 720
658 ${$_[0]}++; 765 ${$_[0]}++;
659} 766}
660 767
661sub urxvt::anyevent::condvar::wait { 768sub urxvt::anyevent::condvar::wait {
662 unless (${$_[0]}) { 769 unless (${$_[0]}) {
663 require Carp;
664 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";
665 } 771 }
666} 772}
667 773
668package urxvt::term; 774package urxvt::term;
669 775
670=head2 The C<urxvt::term> Class 776=head2 The C<urxvt::term> Class
671 777
672=over 4 778=over 4
673 779
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
674=item $term->destroy 821=item $term->destroy
675 822
676Destroy 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.
677 826
678=item $isset = $term->option ($optval[, $set]) 827=item $isset = $term->option ($optval[, $set])
679 828
680Returns true if the option specified by C<$optval> is enabled, and 829Returns true if the option specified by C<$optval> is enabled, and
681optionally change it. All option values are stored by name in the hash 830optionally change it. All option values are stored by name in the hash
731 my ($self, $name) = (shift, shift); 880 my ($self, $name) = (shift, shift);
732 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 881 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
733 &urxvt::term::_resource 882 &urxvt::term::_resource
734} 883}
735 884
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
736=item $rend = $term->rstyle ([$new_rstyle]) 901=item $rend = $term->rstyle ([$new_rstyle])
737 902
738Return and optionally change the current rendition. Text that is output by 903Return and optionally change the current rendition. Text that is output by
739the terminal application will use this style. 904the terminal application will use this style.
740 905
750=item ($row, $col) = $term->selection_end ([$row, $col]) 915=item ($row, $col) = $term->selection_end ([$row, $col])
751 916
752Return the current values of the selection mark, begin or end positions, 917Return the current values of the selection mark, begin or end positions,
753and optionally set them to new values. 918and optionally set them to new values.
754 919
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
755=item $success = $term->selection_grab ($eventtime) 927=item $success = $term->selection_grab ($eventtime)
756 928
757Try 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
758by 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.
759 932
760=item $oldtext = $term->selection ([$newtext]) 933=item $oldtext = $term->selection ([$newtext])
761 934
762Return the current selection text and optionally replace it by C<$newtext>. 935Return the current selection text and optionally replace it by C<$newtext>.
763 936
764#=item $term->overlay ($x, $y, $text) 937=item $term->overlay_simple ($x, $y, $text)
765# 938
766#Create a simple multi-line overlay box. See the next method for details. 939Create a simple multi-line overlay box. See the next method for details.
767# 940
768#=cut 941=cut
769# 942
770#sub urxvt::term::scr_overlay { 943sub overlay_simple {
771# my ($self, $x, $y, $text) = @_; 944 my ($self, $x, $y, $text) = @_;
772# 945
773# my @lines = split /\n/, $text; 946 my @lines = split /\n/, $text;
774# 947
775# my $w = 0; 948 my $w = List::Util::max map $self->strwidth ($_), @lines;
776# for (map $self->strwidth ($_), @lines) { 949
777# $w = $_ if $w < $_;
778# }
779#
780# $self->scr_overlay_new ($x, $y, $w, scalar @lines); 950 my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
781# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 951 $overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
782#} 952
953 $overlay
954}
783 955
784=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 956=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
785 957
786Create a new (empty) overlay at the given position with the given 958Create a new (empty) overlay at the given position with the given
787width/height. C<$rstyle> defines the initial rendition style 959width/height. C<$rstyle> defines the initial rendition style
854 1026
855=item $string = $term->locale_decode ($octets) 1027=item $string = $term->locale_decode ($octets)
856 1028
857Convert the given locale-encoded octets into a perl string. 1029Convert the given locale-encoded octets into a perl string.
858 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
859=item $term->scr_add_lines ($string) 1048=item $term->scr_add_lines ($string)
860 1049
861Write 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
862running inside the terminal. It may not contain command sequences (escape 1051running inside the terminal. It may not contain command sequences (escape
863codes), 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
877 1066
878Write 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
879pass characters instead of octets, you should convert your strings first 1068pass characters instead of octets, you should convert your strings first
880to the locale-specific encoding using C<< $term->locale_encode >>. 1069to the locale-specific encoding using C<< $term->locale_encode >>.
881 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
882=item $windowid = $term->parent 1078=item $windowid = $term->parent
883 1079
884Return the window id of the toplevel window. 1080Return the window id of the toplevel window.
885 1081
886=item $windowid = $term->vt 1082=item $windowid = $term->vt
910=item $nrow_plus_saveLines = $term->total_rows 1106=item $nrow_plus_saveLines = $term->total_rows
911 1107
912=item $lines_in_scrollback = $term->nsaved 1108=item $lines_in_scrollback = $term->nsaved
913 1109
914Return 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}
915 1134
916=item $modifiermask = $term->ModLevel3Mask 1135=item $modifiermask = $term->ModLevel3Mask
917 1136
918=item $modifiermask = $term->ModMetaMask 1137=item $modifiermask = $term->ModMetaMask
919 1138
1012Return 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.
1013 1232
1014=item $offset = $line->offset_of ($row, $col) 1233=item $offset = $line->offset_of ($row, $col)
1015 1234
1016Returns the character offset of the given row|col pair within the logical 1235Returns the character offset of the given row|col pair within the logical
1017line. 1236line. Works for rows outside the line, too, and returns corresponding
1237offsets outside the string.
1018 1238
1019=item ($row, $col) = $line->coord_of ($offset) 1239=item ($row, $col) = $line->coord_of ($offset)
1020 1240
1021Translates a string offset into terminal coordinates again. 1241Translates a string offset into terminal coordinates again.
1022 1242
1109Converts rxvt-unicodes text reprsentation into a perl string. See 1329Converts rxvt-unicodes text reprsentation into a perl string. See
1110C<< $term->ROW_t >> for details. 1330C<< $term->ROW_t >> for details.
1111 1331
1112=item $success = $term->grab_button ($button, $modifiermask) 1332=item $success = $term->grab_button ($button, $modifiermask)
1113 1333
1114Registers a synchronous button grab. See XGrabButton. 1334Registers a synchronous button grab. See the XGrabButton manpage.
1115 1335
1116=item $success = $term->grab ($eventtime[, $sync]) 1336=item $success = $term->grab ($eventtime[, $sync])
1117 1337
1118Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or 1338Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1119synchronous (C<$sync> is true). Also remembers the grab timestampe. 1339synchronous (C<$sync> is true). Also remembers the grab timestampe.
1159 $item->{render} ||= sub { $_[0]{text} }; 1379 $item->{render} ||= sub { $_[0]{text} };
1160 1380
1161 push @{ $self->{item} }, $item; 1381 push @{ $self->{item} }, $item;
1162} 1382}
1163 1383
1164sub add_separator { 1384=item $popup->add_title ($title)
1165 my ($self, $sep) = @_;
1166 1385
1167 $sep ||= "═"; 1386Adds a non-clickable title to the popup.
1168 1387
1169 $self->add_item ({ 1388=cut
1170 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1171 text => "",
1172 render => sub { $sep x $urxvt::TERM->ncol },
1173 activate => sub { },
1174 });
1175}
1176 1389
1177sub add_title { 1390sub add_title {
1178 my ($self, $title) = @_; 1391 my ($self, $title) = @_;
1179 1392
1180 $self->add_item ({ 1393 $self->add_item ({
1182 text => $title, 1395 text => $title,
1183 activate => sub { }, 1396 activate => sub { },
1184 }); 1397 });
1185} 1398}
1186 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
1187sub add_button { 1426sub add_button {
1188 my ($self, $text, $cb) = @_; 1427 my ($self, $text, $cb) = @_;
1189 1428
1190 $self->add_item ({ type => "button", text => "[ $text ]", activate => $cb}); 1429 $self->add_item ({ type => "button", text => $text, activate => $cb});
1191} 1430}
1431
1432=item $popup->add_toggle ($text, $cb, $initial_value)
1433
1434Adds a toggle/checkbox item to the popup. Teh callback gets called
1435whenever it gets toggled, with a boolean indicating its value as its first
1436argument.
1437
1438=cut
1192 1439
1193sub add_toggle { 1440sub add_toggle {
1194 my ($self, $text, $cb, $value) = @_; 1441 my ($self, $text, $cb, $value) = @_;
1195 1442
1196 my $item; $item = { 1443 my $item; $item = {
1197 type => "button", 1444 type => "button",
1198 text => " $text", 1445 text => " $text",
1199 value => $value, 1446 value => $value,
1200 render => sub { ($_[0]{value} ? "* " : " ") . $text }, 1447 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1201 activate => sub { $cb->($_[0]{value} = !$_[0]{value}); }, 1448 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1202 }; 1449 };
1203 1450
1204 $self->add_item ($item); 1451 $self->add_item ($item);
1205} 1452}
1453
1454=item $popup->show
1455
1456Displays the popup (which is initially hidden).
1457
1458=cut
1206 1459
1207sub show { 1460sub show {
1208 my ($self) = @_; 1461 my ($self) = @_;
1209 1462
1210 local $urxvt::popup::self = $self; 1463 local $urxvt::popup::self = $self;
1211 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"),
1212 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,
1213 "--transient-for" => $self->{term}->parent, 1472 "--transient-for" => $self->{term}->parent,
1473 "-display" => $self->{term}->display_id,
1214 "-pe" => "urxvt-popup") 1474 "-pe" => "urxvt-popup")
1215 or die "unable to create popup window\n"; 1475 or die "unable to create popup window\n";
1216} 1476}
1217 1477
1218sub DESTROY { 1478sub DESTROY {
1219 my ($self) = @_; 1479 my ($self) = @_;
1220 1480
1221 delete $self->{term}{_destroy}{$self}; 1481 delete $self->{term}{_destroy}{$self};
1222 $self->{term}->ungrab; 1482 $self->{term}->ungrab;
1223} 1483}
1484
1485=back
1224 1486
1225=head2 The C<urxvt::timer> Class 1487=head2 The C<urxvt::timer> Class
1226 1488
1227This class implements timer watchers/events. Time is represented as a 1489This class implements timer watchers/events. Time is represented as a
1228fractional number of seconds since the epoch. Example: 1490fractional number of seconds since the epoch. Example:
1281 1543
1282 $term->{socket} = ... 1544 $term->{socket} = ...
1283 $term->{iow} = urxvt::iow 1545 $term->{iow} = urxvt::iow
1284 ->new 1546 ->new
1285 ->fd (fileno $term->{socket}) 1547 ->fd (fileno $term->{socket})
1286 ->events (1) # wait for read data 1548 ->events (urxvt::EVENT_READ)
1287 ->start 1549 ->start
1288 ->cb (sub { 1550 ->cb (sub {
1289 my ($iow, $revents) = @_; 1551 my ($iow, $revents) = @_;
1290 # $revents must be 1 here, no need to check 1552 # $revents must be 1 here, no need to check
1291 sysread $term->{socket}, my $buf, 8192 1553 sysread $term->{socket}, my $buf, 8192
1308 1570
1309Set the filedescriptor (not handle) to watch. 1571Set the filedescriptor (not handle) to watch.
1310 1572
1311=item $iow = $iow->events ($eventmask) 1573=item $iow = $iow->events ($eventmask)
1312 1574
1313Set 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
1314data, 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>.
1315 1578
1316=item $iow = $iow->start 1579=item $iow = $iow->start
1317 1580
1318Start watching for requested events on the given handle. 1581Start watching for requested events on the given handle.
1319 1582
1334 1597
1335=item == 0 - fatal messages 1598=item == 0 - fatal messages
1336 1599
1337=item >= 3 - script loading and management 1600=item >= 3 - script loading and management
1338 1601
1339=item >=10 - all events received 1602=item >=10 - all called hooks
1603
1604=item >=11 - hook reutrn values
1340 1605
1341=back 1606=back
1342 1607
1343=head1 AUTHOR 1608=head1 AUTHOR
1344 1609

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