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Revision 1.61 by root, Mon Jan 9 01:36:56 2006 UTC vs.
Revision 1.85 by root, Thu Jan 12 03:32:56 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
759 924
760=item $oldtext = $term->selection ([$newtext]) 925=item $oldtext = $term->selection ([$newtext])
761 926
762Return the current selection text and optionally replace it by C<$newtext>. 927Return the current selection text and optionally replace it by C<$newtext>.
763 928
764#=item $term->overlay ($x, $y, $text) 929=item $term->overlay_simple ($x, $y, $text)
765# 930
766#Create a simple multi-line overlay box. See the next method for details. 931Create a simple multi-line overlay box. See the next method for details.
767# 932
768#=cut 933=cut
769# 934
770#sub urxvt::term::scr_overlay { 935sub overlay_simple {
771# my ($self, $x, $y, $text) = @_; 936 my ($self, $x, $y, $text) = @_;
772# 937
773# my @lines = split /\n/, $text; 938 my @lines = split /\n/, $text;
774# 939
775# my $w = 0; 940 my $w = List::Util::max map $self->strwidth ($_), @lines;
776# for (map $self->strwidth ($_), @lines) { 941
777# $w = $_ if $w < $_;
778# }
779#
780# $self->scr_overlay_new ($x, $y, $w, scalar @lines); 942 my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
781# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 943 $overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
782#} 944
945 $overlay
946}
783 947
784=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 948=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
785 949
786Create a new (empty) overlay at the given position with the given 950Create a new (empty) overlay at the given position with the given
787width/height. C<$rstyle> defines the initial rendition style 951width/height. C<$rstyle> defines the initial rendition style
854 1018
855=item $string = $term->locale_decode ($octets) 1019=item $string = $term->locale_decode ($octets)
856 1020
857Convert the given locale-encoded octets into a perl string. 1021Convert the given locale-encoded octets into a perl string.
858 1022
1023=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
1024
1025XORs the rendition values in the given span with the provided value
1026(default: C<RS_RVid>). Useful in refresh hooks to provide effects similar
1027to the selection.
1028
1029=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
1030
1031Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1032whitespace will additionally be xored with the C<$rstyle2>, which defaults
1033to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1034it instead.
1035
1036=item $term->scr_bell
1037
1038Ring the bell!
1039
859=item $term->scr_add_lines ($string) 1040=item $term->scr_add_lines ($string)
860 1041
861Write the given text string to the screen, as if output by the application 1042Write the given text string to the screen, as if output by the application
862running inside the terminal. It may not contain command sequences (escape 1043running inside the terminal. It may not contain command sequences (escape
863codes), but is free to use line feeds, carriage returns and tabs. The 1044codes), but is free to use line feeds, carriage returns and tabs. The
877 1058
878Write the octets given in C<$data> to the tty (i.e. as program input). To 1059Write the octets given in C<$data> to the tty (i.e. as program input). To
879pass characters instead of octets, you should convert your strings first 1060pass characters instead of octets, you should convert your strings first
880to the locale-specific encoding using C<< $term->locale_encode >>. 1061to the locale-specific encoding using C<< $term->locale_encode >>.
881 1062
1063=item $old_events = $term->pty_ev_events ([$new_events])
1064
1065Replaces the event mask of the pty watcher by the given event mask. Can
1066be used to suppress input and output handling to the pty/tty. See the
1067description of C<< urxvt::timer->events >>. Make sure to always restore
1068the previous value.
1069
882=item $windowid = $term->parent 1070=item $windowid = $term->parent
883 1071
884Return the window id of the toplevel window. 1072Return the window id of the toplevel window.
885 1073
886=item $windowid = $term->vt 1074=item $windowid = $term->vt
910=item $nrow_plus_saveLines = $term->total_rows 1098=item $nrow_plus_saveLines = $term->total_rows
911 1099
912=item $lines_in_scrollback = $term->nsaved 1100=item $lines_in_scrollback = $term->nsaved
913 1101
914Return various integers describing terminal characteristics. 1102Return various integers describing terminal characteristics.
1103
1104=item $x_display = $term->display_id
1105
1106Return the DISPLAY used by rxvt-unicode.
1107
1108=item $lc_ctype = $term->locale
1109
1110Returns the LC_CTYPE category string used by this rxvt-unicode.
1111
1112=item $env = $term->env
1113
1114Returns a copy of the environment in effect for the terminal as a hashref
1115similar to C<\%ENV>.
1116
1117=cut
1118
1119sub env {
1120 if (my $env = $_[0]->_env) {
1121 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
1122 } else {
1123 +{ %ENV }
1124 }
1125}
915 1126
916=item $modifiermask = $term->ModLevel3Mask 1127=item $modifiermask = $term->ModLevel3Mask
917 1128
918=item $modifiermask = $term->ModMetaMask 1129=item $modifiermask = $term->ModMetaMask
919 1130
1012Return the row number of the first/last row of the line, respectively. 1223Return the row number of the first/last row of the line, respectively.
1013 1224
1014=item $offset = $line->offset_of ($row, $col) 1225=item $offset = $line->offset_of ($row, $col)
1015 1226
1016Returns the character offset of the given row|col pair within the logical 1227Returns the character offset of the given row|col pair within the logical
1017line. 1228line. Works for rows outside the line, too, and returns corresponding
1229offsets outside the string.
1018 1230
1019=item ($row, $col) = $line->coord_of ($offset) 1231=item ($row, $col) = $line->coord_of ($offset)
1020 1232
1021Translates a string offset into terminal coordinates again. 1233Translates a string offset into terminal coordinates again.
1022 1234
1109Converts rxvt-unicodes text reprsentation into a perl string. See 1321Converts rxvt-unicodes text reprsentation into a perl string. See
1110C<< $term->ROW_t >> for details. 1322C<< $term->ROW_t >> for details.
1111 1323
1112=item $success = $term->grab_button ($button, $modifiermask) 1324=item $success = $term->grab_button ($button, $modifiermask)
1113 1325
1114Registers a synchronous button grab. See XGrabButton. 1326Registers a synchronous button grab. See the XGrabButton manpage.
1115 1327
1116=item $success = $term->grab ($eventtime[, $sync]) 1328=item $success = $term->grab ($eventtime[, $sync])
1117 1329
1118Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or 1330Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1119synchronous (C<$sync> is true). Also remembers the grab timestampe. 1331synchronous (C<$sync> is true). Also remembers the grab timestampe.
1159 $item->{render} ||= sub { $_[0]{text} }; 1371 $item->{render} ||= sub { $_[0]{text} };
1160 1372
1161 push @{ $self->{item} }, $item; 1373 push @{ $self->{item} }, $item;
1162} 1374}
1163 1375
1164sub add_separator { 1376=item $popup->add_title ($title)
1165 my ($self, $sep) = @_;
1166 1377
1167 $sep ||= "═"; 1378Adds a non-clickable title to the popup.
1168 1379
1169 $self->add_item ({ 1380=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 $urxvt::TERM->ncol },
1173 activate => sub { },
1174 });
1175}
1176 1381
1177sub add_title { 1382sub add_title {
1178 my ($self, $title) = @_; 1383 my ($self, $title) = @_;
1179 1384
1180 $self->add_item ({ 1385 $self->add_item ({
1182 text => $title, 1387 text => $title,
1183 activate => sub { }, 1388 activate => sub { },
1184 }); 1389 });
1185} 1390}
1186 1391
1392=item $popup->add_separator ([$sepchr])
1393
1394Creates a separator, optionally using the character given as C<$sepchr>.
1395
1396=cut
1397
1398sub add_separator {
1399 my ($self, $sep) = @_;
1400
1401 $sep ||= "=";
1402
1403 $self->add_item ({
1404 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1405 text => "",
1406 render => sub { $sep x $self->{term}->ncol },
1407 activate => sub { },
1408 });
1409}
1410
1411=item $popup->add_button ($text, $cb)
1412
1413Adds a clickable button to the popup. C<$cb> is called whenever it is
1414selected.
1415
1416=cut
1417
1187sub add_button { 1418sub add_button {
1188 my ($self, $text, $cb) = @_; 1419 my ($self, $text, $cb) = @_;
1189 1420
1190 $self->add_item ({ type => "button", text => "[ $text ]", activate => $cb}); 1421 $self->add_item ({ type => "button", text => $text, activate => $cb});
1191} 1422}
1423
1424=item $popup->add_toggle ($text, $cb, $initial_value)
1425
1426Adds a toggle/checkbox item to the popup. Teh callback gets called
1427whenever it gets toggled, with a boolean indicating its value as its first
1428argument.
1429
1430=cut
1192 1431
1193sub add_toggle { 1432sub add_toggle {
1194 my ($self, $text, $cb, $value) = @_; 1433 my ($self, $text, $cb, $value) = @_;
1195 1434
1196 my $item; $item = { 1435 my $item; $item = {
1197 type => "button", 1436 type => "button",
1198 text => " $text", 1437 text => " $text",
1199 value => $value, 1438 value => $value,
1200 render => sub { ($_[0]{value} ? "* " : " ") . $text }, 1439 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1201 activate => sub { $cb->($_[0]{value} = !$_[0]{value}); }, 1440 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1202 }; 1441 };
1203 1442
1204 $self->add_item ($item); 1443 $self->add_item ($item);
1205} 1444}
1445
1446=item $popup->show
1447
1448Displays the popup (which is initially hidden).
1449
1450=cut
1206 1451
1207sub show { 1452sub show {
1208 my ($self) = @_; 1453 my ($self) = @_;
1209 1454
1210 local $urxvt::popup::self = $self; 1455 local $urxvt::popup::self = $self;
1211 1456
1457 my $env = $self->{term}->env;
1458 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1459 delete $env->{LC_ALL};
1460 $env->{LC_CTYPE} = $self->{term}->locale;
1461
1462 urxvt::term->new ($env, $self->{term}->resource ("name"),
1212 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1463 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,
1213 "--transient-for" => $self->{term}->parent, 1464 "--transient-for" => $self->{term}->parent,
1465 "-display" => $self->{term}->display_id,
1214 "-pe" => "urxvt-popup") 1466 "-pe" => "urxvt-popup")
1215 or die "unable to create popup window\n"; 1467 or die "unable to create popup window\n";
1216} 1468}
1217 1469
1218sub DESTROY { 1470sub DESTROY {
1219 my ($self) = @_; 1471 my ($self) = @_;
1220 1472
1221 delete $self->{term}{_destroy}{$self}; 1473 delete $self->{term}{_destroy}{$self};
1222 $self->{term}->ungrab; 1474 $self->{term}->ungrab;
1223} 1475}
1476
1477=back
1224 1478
1225=head2 The C<urxvt::timer> Class 1479=head2 The C<urxvt::timer> Class
1226 1480
1227This class implements timer watchers/events. Time is represented as a 1481This class implements timer watchers/events. Time is represented as a
1228fractional number of seconds since the epoch. Example: 1482fractional number of seconds since the epoch. Example:
1281 1535
1282 $term->{socket} = ... 1536 $term->{socket} = ...
1283 $term->{iow} = urxvt::iow 1537 $term->{iow} = urxvt::iow
1284 ->new 1538 ->new
1285 ->fd (fileno $term->{socket}) 1539 ->fd (fileno $term->{socket})
1286 ->events (1) # wait for read data 1540 ->events (urxvt::EVENT_READ)
1287 ->start 1541 ->start
1288 ->cb (sub { 1542 ->cb (sub {
1289 my ($iow, $revents) = @_; 1543 my ($iow, $revents) = @_;
1290 # $revents must be 1 here, no need to check 1544 # $revents must be 1 here, no need to check
1291 sysread $term->{socket}, my $buf, 8192 1545 sysread $term->{socket}, my $buf, 8192
1308 1562
1309Set the filedescriptor (not handle) to watch. 1563Set the filedescriptor (not handle) to watch.
1310 1564
1311=item $iow = $iow->events ($eventmask) 1565=item $iow = $iow->events ($eventmask)
1312 1566
1313Set the event mask to watch. Bit #0 (value C<1>) enables watching for read 1567Set the event mask to watch. The only allowed values are
1314data, Bit #1 (value C<2>) enables watching for write data. 1568C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
1569together, or C<urxvt::EVENT_NONE>.
1315 1570
1316=item $iow = $iow->start 1571=item $iow = $iow->start
1317 1572
1318Start watching for requested events on the given handle. 1573Start watching for requested events on the given handle.
1319 1574
1334 1589
1335=item == 0 - fatal messages 1590=item == 0 - fatal messages
1336 1591
1337=item >= 3 - script loading and management 1592=item >= 3 - script loading and management
1338 1593
1339=item >=10 - all events received 1594=item >=10 - all called hooks
1595
1596=item >=11 - hook reutrn values
1340 1597
1341=back 1598=back
1342 1599
1343=head1 AUTHOR 1600=head1 AUTHOR
1344 1601

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