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Revision 1.60 by root, Mon Jan 9 01:21:43 2006 UTC vs.
Revision 1.84 by root, Thu Jan 12 02:20:56 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 $term
150 195
204than the scroll back buffer or the terminal. 249than the scroll back buffer or the terminal.
205 250
206It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 251It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
207$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total 252$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
208number of lines that will be in the scrollback buffer. 253number of lines that will be in the scrollback buffer.
209
210=item on_tty_activity $term *NYI*
211
212Called whenever the program(s) running in the urxvt window send output.
213 254
214=item on_osc_seq $term, $string 255=item on_osc_seq $term, $string
215 256
216Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = 257Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
217operating system command) is processed. Cursor position and other state 258operating system command) is processed. Cursor position and other state
230can filter/change and output the text yourself by returning a true value 271can filter/change and output the text yourself by returning a true value
231and calling C<< $term->scr_add_lines >> yourself. Please note that this 272and calling C<< $term->scr_add_lines >> yourself. Please note that this
232might be very slow, however, as your hook is called for B<all> text being 273might be very slow, however, as your hook is called for B<all> text being
233output. 274output.
234 275
276=item on_tt_write $term, $octets
277
278Called whenever some data is written to the tty/pty and can be used to
279suppress or filter tty input.
280
235=item on_line_update $term, $row 281=item on_line_update $term, $row
236 282
237Called whenever a line was updated or changed. Can be used to filter 283Called whenever a line was updated or changed. Can be used to filter
238screen output (e.g. underline urls or other useless stuff). Only lines 284screen output (e.g. underline urls or other useless stuff). Only lines
239that are being shown will be filtered, and, due to performance reasons, 285that are being shown will be filtered, and, due to performance reasons,
271=item on_focus_out $term 317=item on_focus_out $term
272 318
273Called wheneever the window loses keyboard focus, before rxvt-unicode does 319Called wheneever the window loses keyboard focus, before rxvt-unicode does
274focus out processing. 320focus out processing.
275 321
276=item on_key_press $term, $event, $octets 322=item on_key_press $term, $event, $keysym, $octets
277 323
278=item on_key_release $term, $event 324=item on_key_release $term, $event, $keysym
279 325
280=item on_button_press $term, $event 326=item on_button_press $term, $event
281 327
282=item on_button_release $term, $event 328=item on_button_release $term, $event
283 329
299 345
300subwindow. 346subwindow.
301 347
302=back 348=back
303 349
350=cut
351
352package urxvt;
353
354use utf8;
355use strict;
356use Carp ();
357use Scalar::Util ();
358use List::Util ();
359
360our $VERSION = 1;
361our $TERM;
362our @HOOKNAME;
363our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
364our %OPTION;
365
366our $LIBDIR;
367our $RESNAME;
368our $RESCLASS;
369our $RXVTNAME;
370
304=head2 Variables in the C<urxvt> Package 371=head2 Variables in the C<urxvt> Package
305 372
306=over 4 373=over 4
374
375=item $urxvt::LIBDIR
376
377The rxvt-unicode library directory, where, among other things, the perl
378modules and scripts are stored.
379
380=item $urxvt::RESCLASS, $urxvt::RESCLASS
381
382The resource class and name rxvt-unicode uses to look up X resources.
383
384=item $urxvt::RXVTNAME
385
386The basename of the installed binaries, usually C<urxvt>.
307 387
308=item $urxvt::TERM 388=item $urxvt::TERM
309 389
310The current terminal. This variable stores the current C<urxvt::term> 390The current terminal. This variable stores the current C<urxvt::term>
311object, whenever a callback/hook is executing. 391object, whenever a callback/hook is executing.
313=back 393=back
314 394
315=head2 Functions in the C<urxvt> Package 395=head2 Functions in the C<urxvt> Package
316 396
317=over 4 397=over 4
318
319=item $term = new urxvt [arg...]
320
321Creates a new terminal, very similar as if you had started it with
322C<system $binfile, arg...>. Croaks (and probably outputs an error message)
323if the new instance couldn't be created. Returns C<undef> if the new
324instance didn't initialise perl, and the terminal object otherwise. The
325C<init> and C<start> hooks will be called during the call.
326 398
327=item urxvt::fatal $errormessage 399=item urxvt::fatal $errormessage
328 400
329Fatally aborts execution with the given error message. Avoid at all 401Fatally aborts execution with the given error message. Avoid at all
330costs! The only time this is acceptable is when the terminal process 402costs! The only time this is acceptable is when the terminal process
336newline. The module also overwrites the C<warn> builtin with a function 408newline. The module also overwrites the C<warn> builtin with a function
337that calls this function. 409that calls this function.
338 410
339Using this function has the advantage that its output ends up in the 411Using this function has the advantage that its output ends up in the
340correct place, e.g. on stderr of the connecting urxvtc client. 412correct place, e.g. on stderr of the connecting urxvtc client.
413
414Messages have a size limit of 1023 bytes currently.
415
416=item $is_safe = urxvt::safe
417
418Returns true when it is safe to do potentially unsafe things, such as
419evaluating perl code specified by the user. This is true when urxvt was
420started setuid or setgid.
341 421
342=item $time = urxvt::NOW 422=item $time = urxvt::NOW
343 423
344Returns the "current time" (as per the event loop). 424Returns the "current time" (as per the event loop).
345 425
384 464
385=item $background = urxvt::GET_BASEBG $rend 465=item $background = urxvt::GET_BASEBG $rend
386 466
387Return the foreground/background colour index, respectively. 467Return the foreground/background colour index, respectively.
388 468
389=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) 469=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
390 470
391=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 471=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
392 472
393Replace the foreground/background colour in the rendition mask with the 473Replace the foreground/background colour in the rendition mask with the
394specified one. 474specified one.
395 475
396=item $value = urxvt::GET_CUSTOM ($rend) 476=item $value = urxvt::GET_CUSTOM $rend
397 477
398Return the "custom" value: Every rendition has 5 bits for use by 478Return the "custom" value: Every rendition has 5 bits for use by
399extensions. They can be set and changed as you like and are initially 479extensions. They can be set and changed as you like and are initially
400zero. 480zero.
401 481
402=item $rend = urxvt::SET_CUSTOM ($rend, $new_value) 482=item $rend = urxvt::SET_CUSTOM $rend, $new_value
403 483
404Change the custom value. 484Change the custom value.
405 485
406=back 486=back
407 487
408=cut 488=cut
409
410package urxvt;
411
412use utf8;
413use strict;
414use Scalar::Util ();
415use List::Util ();
416
417our $VERSION = 1;
418our $TERM;
419our @HOOKNAME;
420our %OPTION;
421our $LIBDIR;
422 489
423BEGIN { 490BEGIN {
424 urxvt->bootstrap; 491 urxvt->bootstrap;
425 492
426 # overwrite perl's warn 493 # overwrite perl's warn
429 $msg .= "\n" 496 $msg .= "\n"
430 unless $msg =~ /\n$/; 497 unless $msg =~ /\n$/;
431 urxvt::warn ($msg); 498 urxvt::warn ($msg);
432 }; 499 };
433 500
501 # %ENV is the original startup environment
434 delete $ENV{IFS}; 502 delete $ENV{IFS};
435 delete $ENV{CDPATH}; 503 delete $ENV{CDPATH};
436 delete $ENV{BASH_ENV}; 504 delete $ENV{BASH_ENV};
437 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin"; 505 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
438} 506}
443sub verbose { 511sub verbose {
444 my ($level, $msg) = @_; 512 my ($level, $msg) = @_;
445 warn "$msg\n" if $level <= $verbosity; 513 warn "$msg\n" if $level <= $verbosity;
446} 514}
447 515
448# find on_xxx subs in the package and register them
449# as hooks
450sub register_package($) {
451 my ($pkg) = @_;
452
453 for my $htype (0.. $#HOOKNAME) {
454 my $name = $HOOKNAME[$htype];
455
456 my $ref = $pkg->can ("on_" . lc $name)
457 or next;
458
459 $TERM->{_hook}[$htype]{$pkg} = $ref;
460 $hook_count[$htype]++
461 or set_should_invoke $htype, 1;
462 }
463}
464
465my $extension_pkg = "extension0000"; 516my $extension_pkg = "extension0000";
466my %extension_pkg; 517my %extension_pkg;
467 518
468# load a single script into its own package, once only 519# load a single script into its own package, once only
469sub extension_package($) { 520sub extension_package($) {
475 verbose 3, "loading extension '$path' into package '$pkg'"; 526 verbose 3, "loading extension '$path' into package '$pkg'";
476 527
477 open my $fh, "<:raw", $path 528 open my $fh, "<:raw", $path
478 or die "$path: $!"; 529 or die "$path: $!";
479 530
531 my $source = untaint
480 my $source = untaint "package $pkg; use strict; use utf8;\n" 532 "package $pkg; use strict; use utf8;\n"
481 . "use base urxvt::term::proxy::;\n" 533 . "use base urxvt::term::extension::;\n"
482 . "#line 1 \"$path\"\n{\n" 534 . "#line 1 \"$path\"\n{\n"
483 . (do { local $/; <$fh> }) 535 . (do { local $/; <$fh> })
484 . "\n};\n1"; 536 . "\n};\n1";
485 537
538 eval $source
486 eval $source or die "$path: $@"; 539 or die "$path: $@";
487 540
488 $pkg 541 $pkg
489 } 542 }
490} 543}
491 544
497 my $htype = shift; 550 my $htype = shift;
498 551
499 if ($htype == 0) { # INIT 552 if ($htype == 0) { # INIT
500 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 553 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
501 554
502 my %want_ext; 555 my %ext_arg;
503 556
504 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 557 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
505 if ($_ eq "default") { 558 if ($_ eq "default") {
506 $want_ext{$_}++ for qw(selection option-popup selection-popup); 559 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
507 } elsif (/^-(.*)$/) { 560 } elsif (/^-(.*)$/) {
508 delete $want_ext{$1}; 561 delete $ext_arg{$1};
562 } elsif (/^([^<]+)<(.*)>$/) {
563 push @{ $ext_arg{$1} }, $2;
509 } else { 564 } else {
510 $want_ext{$_}++; 565 $ext_arg{$_} ||= [];
511 } 566 }
512 } 567 }
513 568
514 for my $ext (keys %want_ext) { 569 while (my ($ext, $argv) = each %ext_arg) {
515 my @files = grep -f $_, map "$_/$ext", @dirs; 570 my @files = grep -f $_, map "$_/$ext", @dirs;
516 571
517 if (@files) { 572 if (@files) {
518 register_package extension_package $files[0]; 573 $TERM->register_package (extension_package $files[0], $argv);
519 } else { 574 } else {
520 warn "perl extension '$ext' not found in perl library search path\n"; 575 warn "perl extension '$ext' not found in perl library search path\n";
521 } 576 }
522 } 577 }
523 578
532 if $verbosity >= 10; 587 if $verbosity >= 10;
533 588
534 keys %$cb; 589 keys %$cb;
535 590
536 while (my ($pkg, $cb) = each %$cb) { 591 while (my ($pkg, $cb) = each %$cb) {
537 eval { 592 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }
538 $retval = $cb->(
539 $TERM->{_pkg}{$pkg} ||= do {
540 my $proxy = bless { }, $pkg;
541 Scalar::Util::weaken ($proxy->{term} = $TERM);
542 $proxy
543 },
544 @_,
545 ) and last; 593 and last;
546 }; 594
547 if ($@) { 595 if ($@) {
548 $TERM->ungrab; # better to lose the grab than the session 596 $TERM->ungrab; # better to lose the grab than the session
549 warn $@; 597 warn $@;
550 } 598 }
551 } 599 }
552 } 600 }
553 601
554 if ($htype == 1) { # DESTROY 602 if ($htype == 1) { # DESTROY
555 # remove hooks if unused
556 if (my $hook = $TERM->{_hook}) { 603 if (my $hook = delete $TERM->{_hook}) {
557 for my $htype (0..$#$hook) { 604 for my $htype (0..$#$hook) {
558 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 605 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
559 or set_should_invoke $htype, 0; 606 or set_should_invoke $htype, 0;
560 } 607 }
561 } 608 }
568 } 615 }
569 616
570 $retval 617 $retval
571} 618}
572 619
573# urxvt::term::proxy 620sub exec_async(@) {
621 my $pid = fork;
574 622
575sub urxvt::term::proxy::AUTOLOAD { 623 return
576 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 624 if !defined $pid or $pid;
625
626 %ENV = %{ $TERM->env };
627
628 exec @_;
629 _exit 255;
630}
631
632# urxvt::term::extension
633
634package urxvt::term::extension;
635
636sub enable {
637 my ($self, %hook) = @_;
638 my $pkg = $self->{_pkg};
639
640 while (my ($name, $cb) = each %hook) {
641 my $htype = $HOOKTYPE{uc $name};
642 defined $htype
643 or Carp::croak "unsupported hook type '$name'";
644
645 unless (exists $self->{term}{_hook}[$htype]{$pkg}) {
646 $hook_count[$htype]++
647 or urxvt::set_should_invoke $htype, 1;
648 }
649
650 $self->{term}{_hook}[$htype]{$pkg} = $cb;
651 }
652}
653
654sub disable {
655 my ($self, @hook) = @_;
656 my $pkg = $self->{_pkg};
657
658 for my $name (@hook) {
659 my $htype = $HOOKTYPE{uc $name};
660 defined $htype
661 or Carp::croak "unsupported hook type '$name'";
662
663 if (delete $self->{term}{_hook}[$htype]{$pkg}) {
664 --$hook_count[$htype]
665 or urxvt::set_should_invoke $htype, 0;
666 }
667 }
668}
669
670our $AUTOLOAD;
671
672sub AUTOLOAD {
673 $AUTOLOAD =~ /:([^:]+)$/
577 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 674 or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
578 675
579 eval qq{ 676 eval qq{
580 sub $urxvt::term::proxy::AUTOLOAD { 677 sub $AUTOLOAD {
581 my \$proxy = shift; 678 my \$proxy = shift;
582 \$proxy->{term}->$1 (\@_) 679 \$proxy->{term}->$1 (\@_)
583 } 680 }
584 1 681 1
585 } or die "FATAL: unable to compile method forwarder: $@"; 682 } or die "FATAL: unable to compile method forwarder: $@";
586 683
587 goto &$urxvt::term::proxy::AUTOLOAD; 684 goto &$AUTOLOAD;
588} 685}
589 686
590sub urxvt::term::proxy::DESTROY { 687sub DESTROY {
591 # nop 688 # nop
592} 689}
593 690
594# urxvt::destroy_hook 691# urxvt::destroy_hook
595 692
605 702
606=head2 The C<urxvt::anyevent> Class 703=head2 The C<urxvt::anyevent> Class
607 704
608The sole purpose of this class is to deliver an interface to the 705The sole purpose of this class is to deliver an interface to the
609C<AnyEvent> module - any module using it will work inside urxvt without 706C<AnyEvent> module - any module using it will work inside urxvt without
610further work. The only exception is that you cannot wait on condition 707further programming. The only exception is that you cannot wait on
611variables, but non-blocking condvar use is ok. What this means is that you 708condition variables, but non-blocking condvar use is ok. What this means
612cannot use blocking APIs, but the non-blocking variant should work. 709is that you cannot use blocking APIs, but the non-blocking variant should
710work.
613 711
614=cut 712=cut
615 713
616our $VERSION = 1; 714our $VERSION = 1;
617 715
662 ${$_[0]}++; 760 ${$_[0]}++;
663} 761}
664 762
665sub urxvt::anyevent::condvar::wait { 763sub urxvt::anyevent::condvar::wait {
666 unless (${$_[0]}) { 764 unless (${$_[0]}) {
667 require Carp;
668 Carp::croak ("AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API"); 765 Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
669 } 766 }
670} 767}
671 768
672package urxvt::term; 769package urxvt::term;
673 770
674=head2 The C<urxvt::term> Class 771=head2 The C<urxvt::term> Class
675 772
676=over 4 773=over 4
677 774
775=cut
776
777# find on_xxx subs in the package and register them
778# as hooks
779sub register_package {
780 my ($self, $pkg, $argv) = @_;
781
782 my $proxy = bless {
783 _pkg => $pkg,
784 argv => $argv,
785 }, $pkg;
786 Scalar::Util::weaken ($proxy->{term} = $self);
787
788 $self->{_pkg}{$pkg} = $proxy;
789
790 for my $name (@HOOKNAME) {
791 if (my $ref = $pkg->can ("on_" . lc $name)) {
792 $proxy->enable ($name => $ref);
793 }
794 }
795}
796
797=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
798
799Creates a new terminal, very similar as if you had started it with system
800C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
801hash which defines the environment of the new terminal.
802
803Croaks (and probably outputs an error message) if the new instance
804couldn't be created. Returns C<undef> if the new instance didn't
805initialise perl, and the terminal object otherwise. The C<init> and
806C<start> hooks will be called during this call.
807
808=cut
809
810sub new {
811 my ($class, $env, @args) = @_;
812
813 _new ([ map "$_=$env->{$_}", keys %$env ], @args);
814}
815
678=item $term->destroy 816=item $term->destroy
679 817
680Destroy the terminal object (close the window, free resources etc.). 818Destroy the terminal object (close the window, free resources
819etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
820watchers (timers, io watchers) are still active.
681 821
682=item $isset = $term->option ($optval[, $set]) 822=item $isset = $term->option ($optval[, $set])
683 823
684Returns true if the option specified by C<$optval> is enabled, and 824Returns true if the option specified by C<$optval> is enabled, and
685optionally change it. All option values are stored by name in the hash 825optionally change it. All option values are stored by name in the hash
735 my ($self, $name) = (shift, shift); 875 my ($self, $name) = (shift, shift);
736 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 876 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
737 &urxvt::term::_resource 877 &urxvt::term::_resource
738} 878}
739 879
880=item $value = $term->x_resource ($pattern)
881
882Returns the X-Resource for the given pattern, excluding the program or
883class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
884same value as used by this instance of rxvt-unicode. Returns C<undef> if no
885resource with that pattern exists.
886
887This method should only be called during the C<on_start> hook, as there is
888only one resource database per display, and later invocations might return
889the wrong resources.
890
891=item $success = $term->parse_keysym ($keysym_spec, $command_string)
892
893Adds a keymap translation exactly as specified via a resource. See the
894C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
895
740=item $rend = $term->rstyle ([$new_rstyle]) 896=item $rend = $term->rstyle ([$new_rstyle])
741 897
742Return and optionally change the current rendition. Text that is output by 898Return and optionally change the current rendition. Text that is output by
743the terminal application will use this style. 899the terminal application will use this style.
744 900
763 919
764=item $oldtext = $term->selection ([$newtext]) 920=item $oldtext = $term->selection ([$newtext])
765 921
766Return the current selection text and optionally replace it by C<$newtext>. 922Return the current selection text and optionally replace it by C<$newtext>.
767 923
768#=item $term->overlay ($x, $y, $text) 924=item $term->overlay_simple ($x, $y, $text)
769# 925
770#Create a simple multi-line overlay box. See the next method for details. 926Create a simple multi-line overlay box. See the next method for details.
771# 927
772#=cut 928=cut
773# 929
774#sub urxvt::term::scr_overlay { 930sub overlay_simple {
775# my ($self, $x, $y, $text) = @_; 931 my ($self, $x, $y, $text) = @_;
776# 932
777# my @lines = split /\n/, $text; 933 my @lines = split /\n/, $text;
778# 934
779# my $w = 0; 935 my $w = List::Util::max map $self->strwidth ($_), @lines;
780# for (map $self->strwidth ($_), @lines) { 936
781# $w = $_ if $w < $_;
782# }
783#
784# $self->scr_overlay_new ($x, $y, $w, scalar @lines); 937 my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
785# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 938 $overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
786#} 939
940 $overlay
941}
787 942
788=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 943=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
789 944
790Create a new (empty) overlay at the given position with the given 945Create a new (empty) overlay at the given position with the given
791width/height. C<$rstyle> defines the initial rendition style 946width/height. C<$rstyle> defines the initial rendition style
858 1013
859=item $string = $term->locale_decode ($octets) 1014=item $string = $term->locale_decode ($octets)
860 1015
861Convert the given locale-encoded octets into a perl string. 1016Convert the given locale-encoded octets into a perl string.
862 1017
1018=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
1019
1020XORs the rendition values in the given span with the provided value
1021(default: C<RS_RVid>). Useful in refresh hooks to provide effects similar
1022to the selection.
1023
1024=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
1025
1026Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1027whitespace will additionally be xored with the C<$rstyle2>, which defaults
1028to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1029it instead.
1030
1031=item $term->scr_bell
1032
1033Ring the bell!
1034
863=item $term->scr_add_lines ($string) 1035=item $term->scr_add_lines ($string)
864 1036
865Write the given text string to the screen, as if output by the application 1037Write the given text string to the screen, as if output by the application
866running inside the terminal. It may not contain command sequences (escape 1038running inside the terminal. It may not contain command sequences (escape
867codes), but is free to use line feeds, carriage returns and tabs. The 1039codes), but is free to use line feeds, carriage returns and tabs. The
881 1053
882Write the octets given in C<$data> to the tty (i.e. as program input). To 1054Write the octets given in C<$data> to the tty (i.e. as program input). To
883pass characters instead of octets, you should convert your strings first 1055pass characters instead of octets, you should convert your strings first
884to the locale-specific encoding using C<< $term->locale_encode >>. 1056to the locale-specific encoding using C<< $term->locale_encode >>.
885 1057
1058=item $old_events = $term->pty_ev_events ([$new_events])
1059
1060Replaces the event mask of the pty watcher by the given event mask. Can
1061be used to suppress input and output handling to the pty/tty. See the
1062description of C<< urxvt::timer->events >>. Make sure to always restore
1063the previous value.
1064
886=item $windowid = $term->parent 1065=item $windowid = $term->parent
887 1066
888Return the window id of the toplevel window. 1067Return the window id of the toplevel window.
889 1068
890=item $windowid = $term->vt 1069=item $windowid = $term->vt
914=item $nrow_plus_saveLines = $term->total_rows 1093=item $nrow_plus_saveLines = $term->total_rows
915 1094
916=item $lines_in_scrollback = $term->nsaved 1095=item $lines_in_scrollback = $term->nsaved
917 1096
918Return various integers describing terminal characteristics. 1097Return various integers describing terminal characteristics.
1098
1099=item $x_display = $term->display_id
1100
1101Return the DISPLAY used by rxvt-unicode.
1102
1103=item $lc_ctype = $term->locale
1104
1105Returns the LC_CTYPE category string used by this rxvt-unicode.
1106
1107=item $env = $term->env
1108
1109Returns a copy of the environment in effect for the terminal as a hashref
1110similar to C<\%ENV>.
1111
1112=cut
1113
1114sub env {
1115 if (my $env = $_[0]->_env) {
1116 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
1117 } else {
1118 +{ %ENV }
1119 }
1120}
919 1121
920=item $modifiermask = $term->ModLevel3Mask 1122=item $modifiermask = $term->ModLevel3Mask
921 1123
922=item $modifiermask = $term->ModMetaMask 1124=item $modifiermask = $term->ModMetaMask
923 1125
1100 $offset / $self->{ncol} + $self->{beg}, 1302 $offset / $self->{ncol} + $self->{beg},
1101 $offset % $self->{ncol} 1303 $offset % $self->{ncol}
1102 ) 1304 )
1103} 1305}
1104 1306
1105=item ($row, $col) = $line->coord_of ($offset)
1106=item $text = $term->special_encode $string 1307=item $text = $term->special_encode $string
1107 1308
1108Converts a perl string into the special encoding used by rxvt-unicode, 1309Converts a perl string into the special encoding used by rxvt-unicode,
1109where one character corresponds to one screen cell. See 1310where one character corresponds to one screen cell. See
1110C<< $term->ROW_t >> for details. 1311C<< $term->ROW_t >> for details.
1112=item $string = $term->special_decode $text 1313=item $string = $term->special_decode $text
1113 1314
1114Converts rxvt-unicodes text reprsentation into a perl string. See 1315Converts rxvt-unicodes text reprsentation into a perl string. See
1115C<< $term->ROW_t >> for details. 1316C<< $term->ROW_t >> for details.
1116 1317
1318=item $success = $term->grab_button ($button, $modifiermask)
1319
1320Registers a synchronous button grab. See the XGrabButton manpage.
1321
1322=item $success = $term->grab ($eventtime[, $sync])
1323
1324Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1325synchronous (C<$sync> is true). Also remembers the grab timestampe.
1326
1327=item $term->allow_events_async
1328
1329Calls XAllowEvents with AsyncBoth for the most recent grab.
1330
1331=item $term->allow_events_sync
1332
1333Calls XAllowEvents with SyncBoth for the most recent grab.
1334
1335=item $term->allow_events_replay
1336
1337Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1338recent grab.
1339
1340=item $term->ungrab
1341
1342Calls XUngrab for the most recent grab. Is called automatically on
1343evaluation errors, as it is better to lose the grab in the error case as
1344the session.
1345
1117=back 1346=back
1118 1347
1119=cut 1348=cut
1120 1349
1121package urxvt::popup; 1350package urxvt::popup;
1136 $item->{render} ||= sub { $_[0]{text} }; 1365 $item->{render} ||= sub { $_[0]{text} };
1137 1366
1138 push @{ $self->{item} }, $item; 1367 push @{ $self->{item} }, $item;
1139} 1368}
1140 1369
1141sub add_separator { 1370=item $popup->add_title ($title)
1142 my ($self, $sep) = @_;
1143 1371
1144 $sep ||= "═"; 1372Adds a non-clickable title to the popup.
1145 1373
1146 $self->add_item ({ 1374=cut
1147 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1148 text => "",
1149 render => sub { $sep x $urxvt::TERM->ncol },
1150 activate => sub { },
1151 });
1152}
1153 1375
1154sub add_title { 1376sub add_title {
1155 my ($self, $title) = @_; 1377 my ($self, $title) = @_;
1156 1378
1157 $self->add_item ({ 1379 $self->add_item ({
1159 text => $title, 1381 text => $title,
1160 activate => sub { }, 1382 activate => sub { },
1161 }); 1383 });
1162} 1384}
1163 1385
1386=item $popup->add_separator ([$sepchr])
1387
1388Creates a separator, optionally using the character given as C<$sepchr>.
1389
1390=cut
1391
1392sub add_separator {
1393 my ($self, $sep) = @_;
1394
1395 $sep ||= "=";
1396
1397 $self->add_item ({
1398 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1399 text => "",
1400 render => sub { $sep x $self->{term}->ncol },
1401 activate => sub { },
1402 });
1403}
1404
1405=item $popup->add_button ($text, $cb)
1406
1407Adds a clickable button to the popup. C<$cb> is called whenever it is
1408selected.
1409
1410=cut
1411
1164sub add_button { 1412sub add_button {
1165 my ($self, $text, $cb) = @_; 1413 my ($self, $text, $cb) = @_;
1166 1414
1167 $self->add_item ({ type => "button", text => "[ $text ]", activate => $cb}); 1415 $self->add_item ({ type => "button", text => $text, activate => $cb});
1168} 1416}
1417
1418=item $popup->add_toggle ($text, $cb, $initial_value)
1419
1420Adds a toggle/checkbox item to the popup. Teh callback gets called
1421whenever it gets toggled, with a boolean indicating its value as its first
1422argument.
1423
1424=cut
1169 1425
1170sub add_toggle { 1426sub add_toggle {
1171 my ($self, $text, $cb, $value) = @_; 1427 my ($self, $text, $cb, $value) = @_;
1172 1428
1173 my $item; $item = { 1429 my $item; $item = {
1174 type => "button", 1430 type => "button",
1175 text => " $text", 1431 text => " $text",
1176 value => $value, 1432 value => $value,
1177 render => sub { ($_[0]{value} ? "* " : " ") . $text }, 1433 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1178 activate => sub { $cb->($_[0]{value} = !$_[0]{value}); }, 1434 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1179 }; 1435 };
1180 1436
1181 $self->add_item ($item); 1437 $self->add_item ($item);
1182} 1438}
1439
1440=item $popup->show
1441
1442Displays the popup (which is initially hidden).
1443
1444=cut
1183 1445
1184sub show { 1446sub show {
1185 my ($self) = @_; 1447 my ($self) = @_;
1186 1448
1187 local $urxvt::popup::self = $self; 1449 local $urxvt::popup::self = $self;
1188 1450
1451 my $env = $self->{term}->env;
1452 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1453 delete $env->{LC_ALL};
1454 $env->{LC_CTYPE} = $self->{term}->locale;
1455
1456 urxvt::term->new ($env, $self->{term}->resource ("name"),
1189 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1457 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,
1190 "--transient-for" => $self->{term}->parent, 1458 "--transient-for" => $self->{term}->parent,
1459 "-display" => $self->{term}->display_id,
1191 "-pe" => "urxvt-popup") 1460 "-pe" => "urxvt-popup")
1192 or die "unable to create popup window\n"; 1461 or die "unable to create popup window\n";
1193} 1462}
1194 1463
1195sub DESTROY { 1464sub DESTROY {
1196 my ($self) = @_; 1465 my ($self) = @_;
1197 1466
1198 delete $self->{term}{_destroy}{$self}; 1467 delete $self->{term}{_destroy}{$self};
1199 $self->{term}->ungrab; 1468 $self->{term}->ungrab;
1200} 1469}
1470
1471=back
1201 1472
1202=head2 The C<urxvt::timer> Class 1473=head2 The C<urxvt::timer> Class
1203 1474
1204This class implements timer watchers/events. Time is represented as a 1475This class implements timer watchers/events. Time is represented as a
1205fractional number of seconds since the epoch. Example: 1476fractional number of seconds since the epoch. Example:
1258 1529
1259 $term->{socket} = ... 1530 $term->{socket} = ...
1260 $term->{iow} = urxvt::iow 1531 $term->{iow} = urxvt::iow
1261 ->new 1532 ->new
1262 ->fd (fileno $term->{socket}) 1533 ->fd (fileno $term->{socket})
1263 ->events (1) # wait for read data 1534 ->events (urxvt::EVENT_READ)
1264 ->start 1535 ->start
1265 ->cb (sub { 1536 ->cb (sub {
1266 my ($iow, $revents) = @_; 1537 my ($iow, $revents) = @_;
1267 # $revents must be 1 here, no need to check 1538 # $revents must be 1 here, no need to check
1268 sysread $term->{socket}, my $buf, 8192 1539 sysread $term->{socket}, my $buf, 8192
1285 1556
1286Set the filedescriptor (not handle) to watch. 1557Set the filedescriptor (not handle) to watch.
1287 1558
1288=item $iow = $iow->events ($eventmask) 1559=item $iow = $iow->events ($eventmask)
1289 1560
1290Set the event mask to watch. Bit #0 (value C<1>) enables watching for read 1561Set the event mask to watch. The only allowed values are
1291data, Bit #1 (value C<2>) enables watching for write data. 1562C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
1563together, or C<urxvt::EVENT_NONE>.
1292 1564
1293=item $iow = $iow->start 1565=item $iow = $iow->start
1294 1566
1295Start watching for requested events on the given handle. 1567Start watching for requested events on the given handle.
1296 1568

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