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Revision 1.59 by root, Mon Jan 9 00:34:36 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, $offset
195 242
204than the scroll back buffer or the terminal. 251than the scroll back buffer or the terminal.
205 252
206It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 253It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
207$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total 254$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
208number of lines that will be in the scrollback buffer. 255number 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.
213 256
214=item on_osc_seq $term, $string 257=item on_osc_seq $term, $string
215 258
216Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = 259Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
217operating system command) is processed. Cursor position and other state 260operating system command) is processed. Cursor position and other state
230can 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
231and calling C<< $term->scr_add_lines >> yourself. Please note that this 274and 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 275might be very slow, however, as your hook is called for B<all> text being
233output. 276output.
234 277
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
235=item on_line_update $term, $row 283=item on_line_update $term, $row
236 284
237Called 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
238screen output (e.g. underline urls or other useless stuff). Only lines 286screen output (e.g. underline urls or other useless stuff). Only lines
239that are being shown will be filtered, and, due to performance reasons, 287that are being shown will be filtered, and, due to performance reasons,
271=item on_focus_out $term 319=item on_focus_out $term
272 320
273Called wheneever the window loses keyboard focus, before rxvt-unicode does 321Called wheneever the window loses keyboard focus, before rxvt-unicode does
274focus out processing. 322focus out processing.
275 323
276=item on_key_press $term, $event, $octets 324=item on_key_press $term, $event, $keysym, $octets
277 325
278=item on_key_release $term, $event 326=item on_key_release $term, $event, $keysym
279 327
280=item on_button_press $term, $event 328=item on_button_press $term, $event
281 329
282=item on_button_release $term, $event 330=item on_button_release $term, $event
283 331
299 347
300subwindow. 348subwindow.
301 349
302=back 350=back
303 351
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
304=head2 Variables in the C<urxvt> Package 373=head2 Variables in the C<urxvt> Package
305 374
306=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>.
307 389
308=item $urxvt::TERM 390=item $urxvt::TERM
309 391
310The current terminal. This variable stores the current C<urxvt::term> 392The current terminal. This variable stores the current C<urxvt::term>
311object, whenever a callback/hook is executing. 393object, whenever a callback/hook is executing.
313=back 395=back
314 396
315=head2 Functions in the C<urxvt> Package 397=head2 Functions in the C<urxvt> Package
316 398
317=over 4 399=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.
326 400
327=item urxvt::fatal $errormessage 401=item urxvt::fatal $errormessage
328 402
329Fatally aborts execution with the given error message. Avoid at all 403Fatally aborts execution with the given error message. Avoid at all
330costs! The only time this is acceptable is when the terminal process 404costs! The only time this is acceptable is when the terminal process
336newline. The module also overwrites the C<warn> builtin with a function 410newline. The module also overwrites the C<warn> builtin with a function
337that calls this function. 411that calls this function.
338 412
339Using 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
340correct 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.
341 423
342=item $time = urxvt::NOW 424=item $time = urxvt::NOW
343 425
344Returns the "current time" (as per the event loop). 426Returns the "current time" (as per the event loop).
345 427
384 466
385=item $background = urxvt::GET_BASEBG $rend 467=item $background = urxvt::GET_BASEBG $rend
386 468
387Return the foreground/background colour index, respectively. 469Return the foreground/background colour index, respectively.
388 470
389=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) 471=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
390 472
391=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 473=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
392 474
393Replace the foreground/background colour in the rendition mask with the 475Replace the foreground/background colour in the rendition mask with the
394specified one. 476specified one.
395 477
396=item $value = urxvt::GET_CUSTOM ($rend) 478=item $value = urxvt::GET_CUSTOM $rend
397 479
398Return the "custom" value: Every rendition has 5 bits for use by 480Return the "custom" value: Every rendition has 5 bits for use by
399extensions. 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
400zero. 482zero.
401 483
402=item $rend = urxvt::SET_CUSTOM ($rend, $new_value) 484=item $rend = urxvt::SET_CUSTOM $rend, $new_value
403 485
404Change the custom value. 486Change the custom value.
405 487
406=back 488=back
407 489
408=cut 490=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;
422 491
423BEGIN { 492BEGIN {
424 urxvt->bootstrap; 493 urxvt->bootstrap;
425 494
426 # overwrite perl's warn 495 # overwrite perl's warn
429 $msg .= "\n" 498 $msg .= "\n"
430 unless $msg =~ /\n$/; 499 unless $msg =~ /\n$/;
431 urxvt::warn ($msg); 500 urxvt::warn ($msg);
432 }; 501 };
433 502
503 # %ENV is the original startup environment
504 delete $ENV{IFS};
505 delete $ENV{CDPATH};
506 delete $ENV{BASH_ENV};
434 $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";
435 delete $ENV{CDPATH};
436} 508}
437 509
438my @hook_count; 510my @hook_count;
439my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 511my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
440 512
441sub verbose { 513sub verbose {
442 my ($level, $msg) = @_; 514 my ($level, $msg) = @_;
443 warn "$msg\n" if $level <= $verbosity; 515 warn "$msg\n" if $level <= $verbosity;
444} 516}
445 517
446# find on_xxx subs in the package and register them
447# as hooks
448sub register_package($) {
449 my ($pkg) = @_;
450
451 for my $htype (0.. $#HOOKNAME) {
452 my $name = $HOOKNAME[$htype];
453
454 my $ref = $pkg->can ("on_" . lc $name)
455 or next;
456
457 $TERM->{_hook}[$htype]{$pkg} = $ref;
458 $hook_count[$htype]++
459 or set_should_invoke $htype, 1;
460 }
461}
462
463my $extension_pkg = "extension0000"; 518my $extension_pkg = "extension0000";
464my %extension_pkg; 519my %extension_pkg;
465 520
466# load a single script into its own package, once only 521# load a single script into its own package, once only
467sub extension_package($) { 522sub extension_package($) {
473 verbose 3, "loading extension '$path' into package '$pkg'"; 528 verbose 3, "loading extension '$path' into package '$pkg'";
474 529
475 open my $fh, "<:raw", $path 530 open my $fh, "<:raw", $path
476 or die "$path: $!"; 531 or die "$path: $!";
477 532
533 my $source = untaint
478 my $source = untaint "package $pkg; use strict; use utf8;\n" 534 "package $pkg; use strict; use utf8;\n"
479 . "use base urxvt::term::proxy::;\n" 535 . "use base urxvt::term::extension::;\n"
480 . "#line 1 \"$path\"\n{\n" 536 . "#line 1 \"$path\"\n{\n"
481 . (do { local $/; <$fh> }) 537 . (do { local $/; <$fh> })
482 . "\n};\n1"; 538 . "\n};\n1";
483 539
540 eval $source
484 eval $source or die "$path: $@"; 541 or die "$path: $@";
485 542
486 $pkg 543 $pkg
487 } 544 }
488} 545}
489 546
495 my $htype = shift; 552 my $htype = shift;
496 553
497 if ($htype == 0) { # INIT 554 if ($htype == 0) { # INIT
498 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 555 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
499 556
500 my %want_ext; 557 my %ext_arg;
501 558
502 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 559 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
503 if ($_ eq "default") { 560 if ($_ eq "default") {
504 $want_ext{$_}++ for qw(selection option-popup selection-popup); 561 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
505 } elsif (/^-(.*)$/) { 562 } elsif (/^-(.*)$/) {
506 delete $want_ext{$1}; 563 delete $ext_arg{$1};
564 } elsif (/^([^<]+)<(.*)>$/) {
565 push @{ $ext_arg{$1} }, $2;
507 } else { 566 } else {
508 $want_ext{$_}++; 567 $ext_arg{$_} ||= [];
509 } 568 }
510 } 569 }
511 570
512 for my $ext (keys %want_ext) { 571 while (my ($ext, $argv) = each %ext_arg) {
513 my @files = grep -f $_, map "$_/$ext", @dirs; 572 my @files = grep -f $_, map "$_/$ext", @dirs;
514 573
515 if (@files) { 574 if (@files) {
516 register_package extension_package $files[0]; 575 $TERM->register_package (extension_package $files[0], $argv);
517 } else { 576 } else {
518 warn "perl extension '$ext' not found in perl library search path\n"; 577 warn "perl extension '$ext' not found in perl library search path\n";
519 } 578 }
520 } 579 }
521 580
530 if $verbosity >= 10; 589 if $verbosity >= 10;
531 590
532 keys %$cb; 591 keys %$cb;
533 592
534 while (my ($pkg, $cb) = each %$cb) { 593 while (my ($pkg, $cb) = each %$cb) {
535 eval { 594 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }
536 $retval = $cb->(
537 $TERM->{_pkg}{$pkg} ||= do {
538 my $proxy = bless { }, $pkg;
539 Scalar::Util::weaken ($proxy->{term} = $TERM);
540 $proxy
541 },
542 @_,
543 ) and last; 595 and last;
544 }; 596
545 if ($@) { 597 if ($@) {
546 $TERM->ungrab; # better to lose the grab than the session 598 $TERM->ungrab; # better to lose the grab than the session
547 warn $@; 599 warn $@;
548 } 600 }
549 } 601 }
602
603 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
604 if $verbosity >= 11;
550 } 605 }
551 606
552 if ($htype == 1) { # DESTROY 607 if ($htype == 1) { # DESTROY
553 # remove hooks if unused
554 if (my $hook = $TERM->{_hook}) { 608 if (my $hook = delete $TERM->{_hook}) {
555 for my $htype (0..$#$hook) { 609 for my $htype (0..$#$hook) {
556 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 610 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
557 or set_should_invoke $htype, 0; 611 or set_should_invoke $htype, 0;
558 } 612 }
559 } 613 }
566 } 620 }
567 621
568 $retval 622 $retval
569} 623}
570 624
571# urxvt::term::proxy 625sub exec_async(@) {
626 my $pid = fork;
572 627
573sub urxvt::term::proxy::AUTOLOAD { 628 return
574 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 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 $AUTOLOAD =~ /:([^:]+)$/
575 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 679 or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
576 680
577 eval qq{ 681 eval qq{
578 sub $urxvt::term::proxy::AUTOLOAD { 682 sub $AUTOLOAD {
579 my \$proxy = shift; 683 my \$proxy = shift;
580 \$proxy->{term}->$1 (\@_) 684 \$proxy->{term}->$1 (\@_)
581 } 685 }
582 1 686 1
583 } or die "FATAL: unable to compile method forwarder: $@"; 687 } or die "FATAL: unable to compile method forwarder: $@";
584 688
585 goto &$urxvt::term::proxy::AUTOLOAD; 689 goto &$AUTOLOAD;
586} 690}
587 691
588sub urxvt::term::proxy::DESTROY { 692sub DESTROY {
589 # nop 693 # nop
590} 694}
591 695
592# urxvt::destroy_hook 696# urxvt::destroy_hook
593 697
603 707
604=head2 The C<urxvt::anyevent> Class 708=head2 The C<urxvt::anyevent> Class
605 709
606The 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
607C<AnyEvent> module - any module using it will work inside urxvt without 711C<AnyEvent> module - any module using it will work inside urxvt without
608further work. The only exception is that you cannot wait on condition 712further programming. The only exception is that you cannot wait on
609variables, 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
610cannot use blocking APIs, but the non-blocking variant should work. 714is that you cannot use blocking APIs, but the non-blocking variant should
715work.
611 716
612=cut 717=cut
613 718
614our $VERSION = 1; 719our $VERSION = 1;
615 720
660 ${$_[0]}++; 765 ${$_[0]}++;
661} 766}
662 767
663sub urxvt::anyevent::condvar::wait { 768sub urxvt::anyevent::condvar::wait {
664 unless (${$_[0]}) { 769 unless (${$_[0]}) {
665 require Carp;
666 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";
667 } 771 }
668} 772}
669 773
670package urxvt::term; 774package urxvt::term;
671 775
672=head2 The C<urxvt::term> Class 776=head2 The C<urxvt::term> Class
673 777
674=over 4 778=over 4
675 779
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
676=item $term->destroy 821=item $term->destroy
677 822
678Destroy 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.
679 826
680=item $isset = $term->option ($optval[, $set]) 827=item $isset = $term->option ($optval[, $set])
681 828
682Returns true if the option specified by C<$optval> is enabled, and 829Returns true if the option specified by C<$optval> is enabled, and
683optionally change it. All option values are stored by name in the hash 830optionally change it. All option values are stored by name in the hash
733 my ($self, $name) = (shift, shift); 880 my ($self, $name) = (shift, shift);
734 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 881 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
735 &urxvt::term::_resource 882 &urxvt::term::_resource
736} 883}
737 884
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
738=item $rend = $term->rstyle ([$new_rstyle]) 901=item $rend = $term->rstyle ([$new_rstyle])
739 902
740Return and optionally change the current rendition. Text that is output by 903Return and optionally change the current rendition. Text that is output by
741the terminal application will use this style. 904the terminal application will use this style.
742 905
761 924
762=item $oldtext = $term->selection ([$newtext]) 925=item $oldtext = $term->selection ([$newtext])
763 926
764Return the current selection text and optionally replace it by C<$newtext>. 927Return the current selection text and optionally replace it by C<$newtext>.
765 928
766#=item $term->overlay ($x, $y, $text) 929=item $term->overlay_simple ($x, $y, $text)
767# 930
768#Create a simple multi-line overlay box. See the next method for details. 931Create a simple multi-line overlay box. See the next method for details.
769# 932
770#=cut 933=cut
771# 934
772#sub urxvt::term::scr_overlay { 935sub overlay_simple {
773# my ($self, $x, $y, $text) = @_; 936 my ($self, $x, $y, $text) = @_;
774# 937
775# my @lines = split /\n/, $text; 938 my @lines = split /\n/, $text;
776# 939
777# my $w = 0; 940 my $w = List::Util::max map $self->strwidth ($_), @lines;
778# for (map $self->strwidth ($_), @lines) { 941
779# $w = $_ if $w < $_;
780# }
781#
782# $self->scr_overlay_new ($x, $y, $w, scalar @lines); 942 my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
783# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 943 $overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
784#} 944
945 $overlay
946}
785 947
786=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 948=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
787 949
788Create a new (empty) overlay at the given position with the given 950Create a new (empty) overlay at the given position with the given
789width/height. C<$rstyle> defines the initial rendition style 951width/height. C<$rstyle> defines the initial rendition style
856 1018
857=item $string = $term->locale_decode ($octets) 1019=item $string = $term->locale_decode ($octets)
858 1020
859Convert the given locale-encoded octets into a perl string. 1021Convert the given locale-encoded octets into a perl string.
860 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
861=item $term->scr_add_lines ($string) 1040=item $term->scr_add_lines ($string)
862 1041
863Write 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
864running inside the terminal. It may not contain command sequences (escape 1043running inside the terminal. It may not contain command sequences (escape
865codes), 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
879 1058
880Write 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
881pass characters instead of octets, you should convert your strings first 1060pass characters instead of octets, you should convert your strings first
882to the locale-specific encoding using C<< $term->locale_encode >>. 1061to the locale-specific encoding using C<< $term->locale_encode >>.
883 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
884=item $windowid = $term->parent 1070=item $windowid = $term->parent
885 1071
886Return the window id of the toplevel window. 1072Return the window id of the toplevel window.
887 1073
888=item $windowid = $term->vt 1074=item $windowid = $term->vt
912=item $nrow_plus_saveLines = $term->total_rows 1098=item $nrow_plus_saveLines = $term->total_rows
913 1099
914=item $lines_in_scrollback = $term->nsaved 1100=item $lines_in_scrollback = $term->nsaved
915 1101
916Return 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}
917 1126
918=item $modifiermask = $term->ModLevel3Mask 1127=item $modifiermask = $term->ModLevel3Mask
919 1128
920=item $modifiermask = $term->ModMetaMask 1129=item $modifiermask = $term->ModMetaMask
921 1130
1014Return 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.
1015 1224
1016=item $offset = $line->offset_of ($row, $col) 1225=item $offset = $line->offset_of ($row, $col)
1017 1226
1018Returns the character offset of the given row|col pair within the logical 1227Returns the character offset of the given row|col pair within the logical
1019line. 1228line. Works for rows outside the line, too, and returns corresponding
1229offsets outside the string.
1020 1230
1021=item ($row, $col) = $line->coord_of ($offset) 1231=item ($row, $col) = $line->coord_of ($offset)
1022 1232
1023Translates a string offset into terminal coordinates again. 1233Translates a string offset into terminal coordinates again.
1024 1234
1098 $offset / $self->{ncol} + $self->{beg}, 1308 $offset / $self->{ncol} + $self->{beg},
1099 $offset % $self->{ncol} 1309 $offset % $self->{ncol}
1100 ) 1310 )
1101} 1311}
1102 1312
1103=item ($row, $col) = $line->coord_of ($offset)
1104=item $text = $term->special_encode $string 1313=item $text = $term->special_encode $string
1105 1314
1106Converts a perl string into the special encoding used by rxvt-unicode, 1315Converts a perl string into the special encoding used by rxvt-unicode,
1107where one character corresponds to one screen cell. See 1316where one character corresponds to one screen cell. See
1108C<< $term->ROW_t >> for details. 1317C<< $term->ROW_t >> for details.
1110=item $string = $term->special_decode $text 1319=item $string = $term->special_decode $text
1111 1320
1112Converts rxvt-unicodes text reprsentation into a perl string. See 1321Converts rxvt-unicodes text reprsentation into a perl string. See
1113C<< $term->ROW_t >> for details. 1322C<< $term->ROW_t >> for details.
1114 1323
1324=item $success = $term->grab_button ($button, $modifiermask)
1325
1326Registers a synchronous button grab. See the XGrabButton manpage.
1327
1328=item $success = $term->grab ($eventtime[, $sync])
1329
1330Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1331synchronous (C<$sync> is true). Also remembers the grab timestampe.
1332
1333=item $term->allow_events_async
1334
1335Calls XAllowEvents with AsyncBoth for the most recent grab.
1336
1337=item $term->allow_events_sync
1338
1339Calls XAllowEvents with SyncBoth for the most recent grab.
1340
1341=item $term->allow_events_replay
1342
1343Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1344recent grab.
1345
1346=item $term->ungrab
1347
1348Calls XUngrab for the most recent grab. Is called automatically on
1349evaluation errors, as it is better to lose the grab in the error case as
1350the session.
1351
1115=back 1352=back
1116 1353
1117=cut 1354=cut
1118 1355
1119package urxvt::popup; 1356package urxvt::popup;
1134 $item->{render} ||= sub { $_[0]{text} }; 1371 $item->{render} ||= sub { $_[0]{text} };
1135 1372
1136 push @{ $self->{item} }, $item; 1373 push @{ $self->{item} }, $item;
1137} 1374}
1138 1375
1139sub add_separator { 1376=item $popup->add_title ($title)
1140 my ($self, $sep) = @_;
1141 1377
1142 $sep ||= "═"; 1378Adds a non-clickable title to the popup.
1143 1379
1144 $self->add_item ({ 1380=cut
1145 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1146 text => "",
1147 render => sub { $sep x $urxvt::TERM->ncol },
1148 activate => sub { },
1149 });
1150}
1151 1381
1152sub add_title { 1382sub add_title {
1153 my ($self, $title) = @_; 1383 my ($self, $title) = @_;
1154 1384
1155 $self->add_item ({ 1385 $self->add_item ({
1157 text => $title, 1387 text => $title,
1158 activate => sub { }, 1388 activate => sub { },
1159 }); 1389 });
1160} 1390}
1161 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
1162sub add_button { 1418sub add_button {
1163 my ($self, $text, $cb) = @_; 1419 my ($self, $text, $cb) = @_;
1164 1420
1165 $self->add_item ({ type => "button", text => "[ $text ]", activate => $cb}); 1421 $self->add_item ({ type => "button", text => $text, activate => $cb});
1166} 1422}
1423
1424=item $popup->add_toggle ($text, $cb, $initial_value)
1425
1426Adds a toggle/checkbox item to the popup. Teh callback gets called
1427whenever it gets toggled, with a boolean indicating its value as its first
1428argument.
1429
1430=cut
1167 1431
1168sub add_toggle { 1432sub add_toggle {
1169 my ($self, $text, $cb, $value) = @_; 1433 my ($self, $text, $cb, $value) = @_;
1170 1434
1171 my $item; $item = { 1435 my $item; $item = {
1172 type => "button", 1436 type => "button",
1173 text => " $text", 1437 text => " $text",
1174 value => $value, 1438 value => $value,
1175 render => sub { ($_[0]{value} ? "* " : " ") . $text }, 1439 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1176 activate => sub { $cb->($_[0]{value} = !$_[0]{value}); }, 1440 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1177 }; 1441 };
1178 1442
1179 $self->add_item ($item); 1443 $self->add_item ($item);
1180} 1444}
1445
1446=item $popup->show
1447
1448Displays the popup (which is initially hidden).
1449
1450=cut
1181 1451
1182sub show { 1452sub show {
1183 my ($self) = @_; 1453 my ($self) = @_;
1184 1454
1185 local $urxvt::popup::self = $self; 1455 local $urxvt::popup::self = $self;
1186 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"),
1187 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,
1188 "--transient-for" => $self->{term}->parent, 1464 "--transient-for" => $self->{term}->parent,
1465 "-display" => $self->{term}->display_id,
1189 "-pe" => "urxvt-popup") 1466 "-pe" => "urxvt-popup")
1190 or die "unable to create popup window\n"; 1467 or die "unable to create popup window\n";
1191} 1468}
1192 1469
1193sub DESTROY { 1470sub DESTROY {
1194 my ($self) = @_; 1471 my ($self) = @_;
1195 1472
1196 delete $self->{term}{_destroy}{$self}; 1473 delete $self->{term}{_destroy}{$self};
1197 $self->{term}->ungrab; 1474 $self->{term}->ungrab;
1198} 1475}
1476
1477=back
1199 1478
1200=head2 The C<urxvt::timer> Class 1479=head2 The C<urxvt::timer> Class
1201 1480
1202This class implements timer watchers/events. Time is represented as a 1481This class implements timer watchers/events. Time is represented as a
1203fractional number of seconds since the epoch. Example: 1482fractional number of seconds since the epoch. Example:
1256 1535
1257 $term->{socket} = ... 1536 $term->{socket} = ...
1258 $term->{iow} = urxvt::iow 1537 $term->{iow} = urxvt::iow
1259 ->new 1538 ->new
1260 ->fd (fileno $term->{socket}) 1539 ->fd (fileno $term->{socket})
1261 ->events (1) # wait for read data 1540 ->events (urxvt::EVENT_READ)
1262 ->start 1541 ->start
1263 ->cb (sub { 1542 ->cb (sub {
1264 my ($iow, $revents) = @_; 1543 my ($iow, $revents) = @_;
1265 # $revents must be 1 here, no need to check 1544 # $revents must be 1 here, no need to check
1266 sysread $term->{socket}, my $buf, 8192 1545 sysread $term->{socket}, my $buf, 8192
1283 1562
1284Set the filedescriptor (not handle) to watch. 1563Set the filedescriptor (not handle) to watch.
1285 1564
1286=item $iow = $iow->events ($eventmask) 1565=item $iow = $iow->events ($eventmask)
1287 1566
1288Set 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
1289data, 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>.
1290 1570
1291=item $iow = $iow->start 1571=item $iow = $iow->start
1292 1572
1293Start watching for requested events on the given handle. 1573Start watching for requested events on the given handle.
1294 1574
1309 1589
1310=item == 0 - fatal messages 1590=item == 0 - fatal messages
1311 1591
1312=item >= 3 - script loading and management 1592=item >= 3 - script loading and management
1313 1593
1314=item >=10 - all events received 1594=item >=10 - all called hooks
1595
1596=item >=11 - hook reutrn values
1315 1597
1316=back 1598=back
1317 1599
1318=head1 AUTHOR 1600=head1 AUTHOR
1319 1601

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