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Revision 1.58 by root, Sun Jan 8 22:58:13 2006 UTC vs.
Revision 1.83 by root, Thu Jan 12 01:38:37 2006 UTC

26thus must be encoded as UTF-8. 26thus must be encoded as UTF-8.
27 27
28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where 28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
29scripts will be shared (but not enabled) for all terminals. 29scripts will be shared (but not enabled) for all terminals.
30 30
31=head2 Prepackaged Extensions 31=head1 PREPACKAGED EXTENSIONS
32 32
33This section describes the extensiosn delivered with this version. You can 33This section describes the extensions delivered with this release. You can
34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. 34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35 35
36You can activate them like this: 36You can activate them like this:
37 37
38 @@RXVT_NAME@@ -pe <extensionname> 38 @@RXVT_NAME@@ -pe <extensionname>
39 39
40=over 4 40=over 4
41 41
42=item selection (enabled by default) 42=item selection (enabled by default)
43 43
44Intelligent selection. This extension tries to be more intelligent when 44(More) intelligent selection. This extension tries to be more intelligent
45the user extends selections (double-click). Right now, it tries to select 45when the user extends selections (double-click). Right now, it tries to
46urls and complete shell-quoted arguments, which is very convenient, too, 46select urls and complete shell-quoted arguments, which is very convenient,
47if your F<ls> supports C<--quoting-style=shell>. 47too, if your F<ls> supports C<--quoting-style=shell>.
48 48
49It also offers the following bindable event: 49It also offers the following bindable keyboard command:
50 50
51=over 4 51=over 4
52 52
53=item rot13 53=item rot13
54 54
58 58
59=back 59=back
60 60
61=item option-popup (enabled by default) 61=item option-popup (enabled by default)
62 62
63Binds a popup menu to Ctrl-Button3 that lets you toggle (some) options at 63Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
64runtime. 64runtime.
65 65
66=item selection-popup (enabled by default)
67
68Binds a popup menu to Ctrl-Button3 that lets you convert the selection
69text into various other formats/action (such as uri unescaping, perl
70evalution, web-browser starting etc.), depending on content.
71
72=item searchable-scrollback<hotkey> (enabled by default)
73
74Adds regex search functionality to the scrollback buffer, triggered
75by a hotkey (default: C<M-s>). When in search mode, normal terminal
76input/output is suspended.
77
78C</> starts an incremental regex search, C<n> searches further, C<p> or
79C<N> jump to the previous match, C<G> jumps to the bottom and clears the
80history, C<enter> leaves search mode at the current position and C<escape>
81returns to the original position.
82
66=item digital-clock 83=item digital-clock
67 84
68Displays a digital clock using the built-in overlay. 85Displays a digital clock using the built-in overlay.
69 86
70=item mark-urls 87=item mark-urls
71 88
72Uses per-line display filtering (C<on_line_update>) to underline urls. 89Uses per-line display filtering (C<on_line_update>) to underline urls and
90make them clickable. When middle-clicked, the program specified in the
91resource C<urlLauncher> (default C<x-www-browser>) will be started.
73 92
74=item block-graphics-to-ascii 93=item block-graphics-to-ascii
75 94
76A not very useful example of filtering all text output to the terminal, 95A not very useful example of filtering all text output to the terminal,
77by replacing all line-drawing characters (U+2500 .. U+259F) by a 96by replacing all line-drawing characters (U+2500 .. U+259F) by a
82Displays a very simple digital clock in the upper right corner of the 101Displays a very simple digital clock in the upper right corner of the
83window. Illustrates overwriting the refresh callbacks to create your own 102window. Illustrates overwriting the refresh callbacks to create your own
84overlays or changes. 103overlays or changes.
85 104
86=back 105=back
106
107=head1 API DOCUMENTATION
87 108
88=head2 General API Considerations 109=head2 General API Considerations
89 110
90All objects (such as terminals, time watchers etc.) are typical 111All objects (such as terminals, time watchers etc.) are typical
91reference-to-hash objects. The hash can be used to store anything you 112reference-to-hash objects. The hash can be used to store anything you
104=over 4 125=over 4
105 126
106=item $text 127=item $text
107 128
108Rxvt-unicodes special way of encoding text, where one "unicode" character 129Rxvt-unicodes special way of encoding text, where one "unicode" character
109always represents one screen cell. See L<row_t> for a discussion of this format. 130always represents one screen cell. See L<ROW_t> for a discussion of this format.
110 131
111=item $string 132=item $string
112 133
113A perl text string, with an emphasis on I<text>. It can store all unicode 134A perl text string, with an emphasis on I<text>. It can store all unicode
114characters and is to be distinguished with text encoded in a specific 135characters and is to be distinguished with text encoded in a specific
119Either binary data or - more common - a text string encoded in a 140Either binary data or - more common - a text string encoded in a
120locale-specific way. 141locale-specific way.
121 142
122=back 143=back
123 144
145=head2 Extension Objects
146
147Very perl extension is a perl class. A separate perl object is created
148for each terminal and each extension and passed as the first parameter to
149hooks. So extensions can use their C<$self> object without having to think
150about other extensions, with the exception of methods and members that
151begin with an underscore character C<_>: these are reserved for internal
152use.
153
154Although it isn't a C<urxvt::term> object, you can call all methods of the
155C<urxvt::term> class on this object.
156
157It has the following methods and data members:
158
159=over 4
160
161=item $urxvt_term = $self->{term}
162
163Returns the C<urxvt::term> object associated with this instance of the
164extension. This member I<must not> be changed in any way.
165
166=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
167
168Dynamically enable the given hooks (named without the C<on_> prefix) for
169this extension, replacing any previous hook. This is useful when you want
170to overwrite time-critical hooks only temporarily.
171
172=item $self->disable ($hook_name[, $hook_name..])
173
174Dynamically disable the given hooks.
175
176=back
177
124=head2 Hooks 178=head2 Hooks
125 179
126The following subroutines can be declared in extension files, and will be 180The following subroutines can be declared in extension files, and will be
127called whenever the relevant event happens. 181called whenever the relevant event happens.
128 182
129The first argument passed to them is an object private to each terminal 183The first argument passed to them is an extension oject as described in
130and extension package. You can call all C<urxvt::term> methods on it, but 184the in the C<Extension Objects> section.
131its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
132object that is shared between all packages is stored in the C<term>
133member. It is, however, blessed intot he package of the extension script,
134so for all practical purposes you can treat an extension script as a class.
135 185
136All of them must return a boolean value. If it is true, then the event 186B<All> of these hooks must return a boolean value. If it is true, then the
137counts as being I<consumed>, and the invocation of other hooks is skipped, 187event counts as being I<consumed>, and the invocation of other hooks is
138and the relevant action might not be carried out by the C++ code. 188skipped, and the relevant action might not be carried out by the C++ code.
139 189
140When in doubt, return a false value (preferably C<()>). 190I<< When in doubt, return a false value (preferably C<()>). >>
141 191
142=over 4 192=over 4
143 193
144=item on_init $term 194=item on_init $term
145 195
199than the scroll back buffer or the terminal. 249than the scroll back buffer or the terminal.
200 250
201It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 251It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
202$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
203number of lines that will be in the scrollback buffer. 253number of lines that will be in the scrollback buffer.
204
205=item on_tty_activity $term *NYI*
206
207Called whenever the program(s) running in the urxvt window send output.
208 254
209=item on_osc_seq $term, $string 255=item on_osc_seq $term, $string
210 256
211Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = 257Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
212operating system command) is processed. Cursor position and other state 258operating system command) is processed. Cursor position and other state
225can 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
226and calling C<< $term->scr_add_lines >> yourself. Please note that this 272and calling C<< $term->scr_add_lines >> yourself. Please note that this
227might be very slow, however, as your hook is called for B<all> text being 273might be very slow, however, as your hook is called for B<all> text being
228output. 274output.
229 275
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
230=item on_line_update $term, $row 281=item on_line_update $term, $row
231 282
232Called 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
233screen output (e.g. underline urls or other useless stuff). Only lines 284screen output (e.g. underline urls or other useless stuff). Only lines
234that are being shown will be filtered, and, due to performance reasons, 285that are being shown will be filtered, and, due to performance reasons,
266=item on_focus_out $term 317=item on_focus_out $term
267 318
268Called wheneever the window loses keyboard focus, before rxvt-unicode does 319Called wheneever the window loses keyboard focus, before rxvt-unicode does
269focus out processing. 320focus out processing.
270 321
271=item on_key_press $term, $event, $octets 322=item on_key_press $term, $event, $keysym, $octets
272 323
273=item on_key_release $term, $event 324=item on_key_release $term, $event, $keysym
274 325
275=item on_button_press $term, $event 326=item on_button_press $term, $event
276 327
277=item on_button_release $term, $event 328=item on_button_release $term, $event
278 329
294 345
295subwindow. 346subwindow.
296 347
297=back 348=back
298 349
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
299=head2 Variables in the C<urxvt> Package 371=head2 Variables in the C<urxvt> Package
300 372
301=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>.
302 387
303=item $urxvt::TERM 388=item $urxvt::TERM
304 389
305The current terminal. This variable stores the current C<urxvt::term> 390The current terminal. This variable stores the current C<urxvt::term>
306object, whenever a callback/hook is executing. 391object, whenever a callback/hook is executing.
308=back 393=back
309 394
310=head2 Functions in the C<urxvt> Package 395=head2 Functions in the C<urxvt> Package
311 396
312=over 4 397=over 4
313
314=item $term = new urxvt [arg...]
315
316Creates a new terminal, very similar as if you had started it with
317C<system $binfile, arg...>. Croaks (and probably outputs an error message)
318if the new instance couldn't be created. Returns C<undef> if the new
319instance didn't initialise perl, and the terminal object otherwise. The
320C<init> and C<start> hooks will be called during the call.
321 398
322=item urxvt::fatal $errormessage 399=item urxvt::fatal $errormessage
323 400
324Fatally aborts execution with the given error message. Avoid at all 401Fatally aborts execution with the given error message. Avoid at all
325costs! The only time this is acceptable is when the terminal process 402costs! The only time this is acceptable is when the terminal process
331newline. The module also overwrites the C<warn> builtin with a function 408newline. The module also overwrites the C<warn> builtin with a function
332that calls this function. 409that calls this function.
333 410
334Using 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
335correct 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.
336 421
337=item $time = urxvt::NOW 422=item $time = urxvt::NOW
338 423
339Returns the "current time" (as per the event loop). 424Returns the "current time" (as per the event loop).
340 425
379 464
380=item $background = urxvt::GET_BASEBG $rend 465=item $background = urxvt::GET_BASEBG $rend
381 466
382Return the foreground/background colour index, respectively. 467Return the foreground/background colour index, respectively.
383 468
384=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) 469=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
385 470
386=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 471=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
387 472
388Replace the foreground/background colour in the rendition mask with the 473Replace the foreground/background colour in the rendition mask with the
389specified one. 474specified one.
390 475
391=item $value = urxvt::GET_CUSTOM ($rend) 476=item $value = urxvt::GET_CUSTOM $rend
392 477
393Return the "custom" value: Every rendition has 5 bits for use by 478Return the "custom" value: Every rendition has 5 bits for use by
394extensions. 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
395zero. 480zero.
396 481
397=item $rend = urxvt::SET_CUSTOM ($rend, $new_value) 482=item $rend = urxvt::SET_CUSTOM $rend, $new_value
398 483
399Change the custom value. 484Change the custom value.
400 485
401=back 486=back
402 487
403=cut 488=cut
404
405package urxvt;
406
407use utf8;
408use strict;
409use Scalar::Util ();
410use List::Util ();
411
412our $VERSION = 1;
413our $TERM;
414our @HOOKNAME;
415our %OPTION;
416our $LIBDIR;
417 489
418BEGIN { 490BEGIN {
419 urxvt->bootstrap; 491 urxvt->bootstrap;
420 492
421 # overwrite perl's warn 493 # overwrite perl's warn
423 my $msg = join "", @_; 495 my $msg = join "", @_;
424 $msg .= "\n" 496 $msg .= "\n"
425 unless $msg =~ /\n$/; 497 unless $msg =~ /\n$/;
426 urxvt::warn ($msg); 498 urxvt::warn ($msg);
427 }; 499 };
500
501 # %ENV is the original startup environment
502 delete $ENV{IFS};
503 delete $ENV{CDPATH};
504 delete $ENV{BASH_ENV};
505 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
428} 506}
429 507
430my @hook_count; 508my @hook_count;
431my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 509my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
432 510
433sub verbose { 511sub verbose {
434 my ($level, $msg) = @_; 512 my ($level, $msg) = @_;
435 warn "$msg\n" if $level <= $verbosity; 513 warn "$msg\n" if $level <= $verbosity;
436} 514}
437 515
438# find on_xxx subs in the package and register them
439# as hooks
440sub register_package($) {
441 my ($pkg) = @_;
442
443 for my $htype (0.. $#HOOKNAME) {
444 my $name = $HOOKNAME[$htype];
445
446 my $ref = $pkg->can ("on_" . lc $name)
447 or next;
448
449 $TERM->{_hook}[$htype]{$pkg} = $ref;
450 $hook_count[$htype]++
451 or set_should_invoke $htype, 1;
452 }
453}
454
455my $extension_pkg = "extension0000"; 516my $extension_pkg = "extension0000";
456my %extension_pkg; 517my %extension_pkg;
457 518
458# load a single script into its own package, once only 519# load a single script into its own package, once only
459sub extension_package($) { 520sub extension_package($) {
465 verbose 3, "loading extension '$path' into package '$pkg'"; 526 verbose 3, "loading extension '$path' into package '$pkg'";
466 527
467 open my $fh, "<:raw", $path 528 open my $fh, "<:raw", $path
468 or die "$path: $!"; 529 or die "$path: $!";
469 530
531 my $source = untaint
470 my $source = "package $pkg; use strict; use utf8;\n" 532 "package $pkg; use strict; use utf8;\n"
471 . "use base urxvt::term::proxy::;\n" 533 . "use base urxvt::term::extension::;\n"
472 . "#line 1 \"$path\"\n{\n" 534 . "#line 1 \"$path\"\n{\n"
473 . (do { local $/; <$fh> }) 535 . (do { local $/; <$fh> })
474 . "\n};\n1"; 536 . "\n};\n1";
475 537
476 $source =~ /(.*)/s and $source = $1; # untaint 538 eval $source
477
478 eval $source or die "$path: $@"; 539 or die "$path: $@";
479 540
480 $pkg 541 $pkg
481 } 542 }
482} 543}
483 544
489 my $htype = shift; 550 my $htype = shift;
490 551
491 if ($htype == 0) { # INIT 552 if ($htype == 0) { # INIT
492 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 553 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
493 554
494 my %want_ext; 555 my %ext_arg;
495 556
496 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 557 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
497 if ($_ eq "default") { 558 if ($_ eq "default") {
498 $want_ext{$_}++ for qw(selection option-popup); 559 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
499 } elsif (/^-(.*)$/) { 560 } elsif (/^-(.*)$/) {
500 delete $want_ext{$1}; 561 delete $ext_arg{$1};
562 } elsif (/^([^<]+)<(.*)>$/) {
563 push @{ $ext_arg{$1} }, $2;
501 } else { 564 } else {
502 $want_ext{$_}++; 565 $ext_arg{$_} ||= [];
503 } 566 }
504 } 567 }
505 568
506 for my $ext (keys %want_ext) { 569 while (my ($ext, $argv) = each %ext_arg) {
507 my @files = grep -f $_, map "$_/$ext", @dirs; 570 my @files = grep -f $_, map "$_/$ext", @dirs;
508 571
509 if (@files) { 572 if (@files) {
510 register_package extension_package $files[0]; 573 $TERM->register_package (extension_package $files[0], $argv);
511 } else { 574 } else {
512 warn "perl extension '$ext' not found in perl library search path\n"; 575 warn "perl extension '$ext' not found in perl library search path\n";
513 } 576 }
514 } 577 }
515 578
524 if $verbosity >= 10; 587 if $verbosity >= 10;
525 588
526 keys %$cb; 589 keys %$cb;
527 590
528 while (my ($pkg, $cb) = each %$cb) { 591 while (my ($pkg, $cb) = each %$cb) {
529 eval { 592 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }
530 $retval = $cb->(
531 $TERM->{_pkg}{$pkg} ||= do {
532 my $proxy = bless { }, $pkg;
533 Scalar::Util::weaken ($proxy->{term} = $TERM);
534 $proxy
535 },
536 @_,
537 ) and last; 593 and last;
538 }; 594
539 if ($@) { 595 if ($@) {
540 $TERM->ungrab; # better to lose the grab than the session 596 $TERM->ungrab; # better to lose the grab than the session
541 warn $@; 597 warn $@;
542 } 598 }
543 } 599 }
544 } 600 }
545 601
546 if ($htype == 1) { # DESTROY 602 if ($htype == 1) { # DESTROY
547 # remove hooks if unused
548 if (my $hook = $TERM->{_hook}) { 603 if (my $hook = delete $TERM->{_hook}) {
549 for my $htype (0..$#$hook) { 604 for my $htype (0..$#$hook) {
550 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 605 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
551 or set_should_invoke $htype, 0; 606 or set_should_invoke $htype, 0;
552 } 607 }
553 } 608 }
560 } 615 }
561 616
562 $retval 617 $retval
563} 618}
564 619
565# urxvt::term::proxy 620# urxvt::term::extension
566 621
567sub urxvt::term::proxy::AUTOLOAD { 622package urxvt::term::extension;
568 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 623
624sub enable {
625 my ($self, %hook) = @_;
626 my $pkg = $self->{_pkg};
627
628 while (my ($name, $cb) = each %hook) {
629 my $htype = $HOOKTYPE{uc $name};
630 defined $htype
631 or Carp::croak "unsupported hook type '$name'";
632
633 unless (exists $self->{term}{_hook}[$htype]{$pkg}) {
634 $hook_count[$htype]++
635 or urxvt::set_should_invoke $htype, 1;
636 }
637
638 $self->{term}{_hook}[$htype]{$pkg} = $cb;
639 }
640}
641
642sub disable {
643 my ($self, @hook) = @_;
644 my $pkg = $self->{_pkg};
645
646 for my $name (@hook) {
647 my $htype = $HOOKTYPE{uc $name};
648 defined $htype
649 or Carp::croak "unsupported hook type '$name'";
650
651 if (delete $self->{term}{_hook}[$htype]{$pkg}) {
652 --$hook_count[$htype]
653 or urxvt::set_should_invoke $htype, 0;
654 }
655 }
656}
657
658our $AUTOLOAD;
659
660sub AUTOLOAD {
661 $AUTOLOAD =~ /:([^:]+)$/
569 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 662 or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
570 663
571 eval qq{ 664 eval qq{
572 sub $urxvt::term::proxy::AUTOLOAD { 665 sub $AUTOLOAD {
573 my \$proxy = shift; 666 my \$proxy = shift;
574 \$proxy->{term}->$1 (\@_) 667 \$proxy->{term}->$1 (\@_)
575 } 668 }
576 1 669 1
577 } or die "FATAL: unable to compile method forwarder: $@"; 670 } or die "FATAL: unable to compile method forwarder: $@";
578 671
579 goto &$urxvt::term::proxy::AUTOLOAD; 672 goto &$AUTOLOAD;
580} 673}
581 674
582sub urxvt::term::proxy::DESTROY { 675sub DESTROY {
583 # nop 676 # nop
584} 677}
585 678
586# urxvt::destroy_hook 679# urxvt::destroy_hook
587 680
597 690
598=head2 The C<urxvt::anyevent> Class 691=head2 The C<urxvt::anyevent> Class
599 692
600The sole purpose of this class is to deliver an interface to the 693The sole purpose of this class is to deliver an interface to the
601C<AnyEvent> module - any module using it will work inside urxvt without 694C<AnyEvent> module - any module using it will work inside urxvt without
602further work. The only exception is that you cannot wait on condition 695further programming. The only exception is that you cannot wait on
603variables, but non-blocking condvar use is ok. What this means is that you 696condition variables, but non-blocking condvar use is ok. What this means
604cannot use blocking APIs, but the non-blocking variant should work. 697is that you cannot use blocking APIs, but the non-blocking variant should
698work.
605 699
606=cut 700=cut
607 701
608our $VERSION = 1; 702our $VERSION = 1;
609 703
654 ${$_[0]}++; 748 ${$_[0]}++;
655} 749}
656 750
657sub urxvt::anyevent::condvar::wait { 751sub urxvt::anyevent::condvar::wait {
658 unless (${$_[0]}) { 752 unless (${$_[0]}) {
659 require Carp;
660 Carp::croak ("AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API"); 753 Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
661 } 754 }
662} 755}
663 756
664package urxvt::term; 757package urxvt::term;
665 758
666=head2 The C<urxvt::term> Class 759=head2 The C<urxvt::term> Class
667 760
668=over 4 761=over 4
669 762
763=cut
764
765# find on_xxx subs in the package and register them
766# as hooks
767sub register_package {
768 my ($self, $pkg, $argv) = @_;
769
770 my $proxy = bless {
771 _pkg => $pkg,
772 argv => $argv,
773 }, $pkg;
774 Scalar::Util::weaken ($proxy->{term} = $self);
775
776 $self->{_pkg}{$pkg} = $proxy;
777
778 for my $name (@HOOKNAME) {
779 if (my $ref = $pkg->can ("on_" . lc $name)) {
780 $proxy->enable ($name => $ref);
781 }
782 }
783}
784
785=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
786
787Creates a new terminal, very similar as if you had started it with system
788C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
789hash which defines the environment of the new terminal.
790
791Croaks (and probably outputs an error message) if the new instance
792couldn't be created. Returns C<undef> if the new instance didn't
793initialise perl, and the terminal object otherwise. The C<init> and
794C<start> hooks will be called during this call.
795
796=cut
797
798sub new {
799 my ($class, $env, @args) = @_;
800
801 _new ([ map "$_=$env->{$_}", keys %$env ], @args);
802}
803
670=item $term->destroy 804=item $term->destroy
671 805
672Destroy the terminal object (close the window, free resources etc.). 806Destroy the terminal object (close the window, free resources
807etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
808watchers (timers, io watchers) are still active.
673 809
674=item $isset = $term->option ($optval[, $set]) 810=item $isset = $term->option ($optval[, $set])
675 811
676Returns true if the option specified by C<$optval> is enabled, and 812Returns true if the option specified by C<$optval> is enabled, and
677optionally change it. All option values are stored by name in the hash 813optionally change it. All option values are stored by name in the hash
727 my ($self, $name) = (shift, shift); 863 my ($self, $name) = (shift, shift);
728 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 864 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
729 &urxvt::term::_resource 865 &urxvt::term::_resource
730} 866}
731 867
868=item $value = $term->x_resource ($pattern)
869
870Returns the X-Resource for the given pattern, excluding the program or
871class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
872same value as used by this instance of rxvt-unicode. Returns C<undef> if no
873resource with that pattern exists.
874
875This method should only be called during the C<on_start> hook, as there is
876only one resource database per display, and later invocations might return
877the wrong resources.
878
879=item $success = $term->parse_keysym ($keysym_spec, $command_string)
880
881Adds a keymap translation exactly as specified via a resource. See the
882C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
883
732=item $rend = $term->rstyle ([$new_rstyle]) 884=item $rend = $term->rstyle ([$new_rstyle])
733 885
734Return and optionally change the current rendition. Text that is output by 886Return and optionally change the current rendition. Text that is output by
735the terminal application will use this style. 887the terminal application will use this style.
736 888
755 907
756=item $oldtext = $term->selection ([$newtext]) 908=item $oldtext = $term->selection ([$newtext])
757 909
758Return the current selection text and optionally replace it by C<$newtext>. 910Return the current selection text and optionally replace it by C<$newtext>.
759 911
760#=item $term->overlay ($x, $y, $text) 912=item $term->overlay_simple ($x, $y, $text)
761# 913
762#Create a simple multi-line overlay box. See the next method for details. 914Create a simple multi-line overlay box. See the next method for details.
763# 915
764#=cut 916=cut
765# 917
766#sub urxvt::term::scr_overlay { 918sub overlay_simple {
767# my ($self, $x, $y, $text) = @_; 919 my ($self, $x, $y, $text) = @_;
768# 920
769# my @lines = split /\n/, $text; 921 my @lines = split /\n/, $text;
770# 922
771# my $w = 0; 923 my $w = List::Util::max map $self->strwidth ($_), @lines;
772# for (map $self->strwidth ($_), @lines) { 924
773# $w = $_ if $w < $_;
774# }
775#
776# $self->scr_overlay_new ($x, $y, $w, scalar @lines); 925 my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
777# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 926 $overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
778#} 927
928 $overlay
929}
779 930
780=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 931=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
781 932
782Create a new (empty) overlay at the given position with the given 933Create a new (empty) overlay at the given position with the given
783width/height. C<$rstyle> defines the initial rendition style 934width/height. C<$rstyle> defines the initial rendition style
850 1001
851=item $string = $term->locale_decode ($octets) 1002=item $string = $term->locale_decode ($octets)
852 1003
853Convert the given locale-encoded octets into a perl string. 1004Convert the given locale-encoded octets into a perl string.
854 1005
1006=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
1007
1008XORs the rendition values in the given span with the provided value
1009(default: C<RS_RVid>). Useful in refresh hooks to provide effects similar
1010to the selection.
1011
1012=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
1013
1014Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1015whitespace will additionally be xored with the C<$rstyle2>, which defaults
1016to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1017it instead.
1018
1019=item $term->scr_bell
1020
1021Ring the bell!
1022
855=item $term->scr_add_lines ($string) 1023=item $term->scr_add_lines ($string)
856 1024
857Write the given text string to the screen, as if output by the application 1025Write the given text string to the screen, as if output by the application
858running inside the terminal. It may not contain command sequences (escape 1026running inside the terminal. It may not contain command sequences (escape
859codes), but is free to use line feeds, carriage returns and tabs. The 1027codes), but is free to use line feeds, carriage returns and tabs. The
873 1041
874Write the octets given in C<$data> to the tty (i.e. as program input). To 1042Write the octets given in C<$data> to the tty (i.e. as program input). To
875pass characters instead of octets, you should convert your strings first 1043pass characters instead of octets, you should convert your strings first
876to the locale-specific encoding using C<< $term->locale_encode >>. 1044to the locale-specific encoding using C<< $term->locale_encode >>.
877 1045
1046=item $old_events = $term->pty_ev_events ([$new_events])
1047
1048Replaces the event mask of the pty watcher by the given event mask. Can
1049be used to suppress input and output handling to the pty/tty. See the
1050description of C<< urxvt::timer->events >>. Make sure to always restore
1051the previous value.
1052
878=item $windowid = $term->parent 1053=item $windowid = $term->parent
879 1054
880Return the window id of the toplevel window. 1055Return the window id of the toplevel window.
881 1056
882=item $windowid = $term->vt 1057=item $windowid = $term->vt
906=item $nrow_plus_saveLines = $term->total_rows 1081=item $nrow_plus_saveLines = $term->total_rows
907 1082
908=item $lines_in_scrollback = $term->nsaved 1083=item $lines_in_scrollback = $term->nsaved
909 1084
910Return various integers describing terminal characteristics. 1085Return various integers describing terminal characteristics.
1086
1087=item $x_display = $term->display_id
1088
1089Return the DISPLAY used by rxvt-unicode.
1090
1091=item $lc_ctype = $term->locale
1092
1093Returns the LC_CTYPE category string used by this rxvt-unicode.
1094
1095=item $env = $term->env
1096
1097Returns a copy of the environment in effect for the terminal as a hashref
1098similar to C<\%ENV>.
1099
1100=cut
1101
1102sub env {
1103 if (my $env = $_[0]->_env) {
1104 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
1105 } else {
1106 +{ %ENV }
1107 }
1108}
911 1109
912=item $modifiermask = $term->ModLevel3Mask 1110=item $modifiermask = $term->ModLevel3Mask
913 1111
914=item $modifiermask = $term->ModMetaMask 1112=item $modifiermask = $term->ModMetaMask
915 1113
1092 $offset / $self->{ncol} + $self->{beg}, 1290 $offset / $self->{ncol} + $self->{beg},
1093 $offset % $self->{ncol} 1291 $offset % $self->{ncol}
1094 ) 1292 )
1095} 1293}
1096 1294
1097=item ($row, $col) = $line->coord_of ($offset)
1098=item $text = $term->special_encode $string 1295=item $text = $term->special_encode $string
1099 1296
1100Converts a perl string into the special encoding used by rxvt-unicode, 1297Converts a perl string into the special encoding used by rxvt-unicode,
1101where one character corresponds to one screen cell. See 1298where one character corresponds to one screen cell. See
1102C<< $term->ROW_t >> for details. 1299C<< $term->ROW_t >> for details.
1104=item $string = $term->special_decode $text 1301=item $string = $term->special_decode $text
1105 1302
1106Converts rxvt-unicodes text reprsentation into a perl string. See 1303Converts rxvt-unicodes text reprsentation into a perl string. See
1107C<< $term->ROW_t >> for details. 1304C<< $term->ROW_t >> for details.
1108 1305
1306=item $success = $term->grab_button ($button, $modifiermask)
1307
1308Registers a synchronous button grab. See the XGrabButton manpage.
1309
1310=item $success = $term->grab ($eventtime[, $sync])
1311
1312Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1313synchronous (C<$sync> is true). Also remembers the grab timestampe.
1314
1315=item $term->allow_events_async
1316
1317Calls XAllowEvents with AsyncBoth for the most recent grab.
1318
1319=item $term->allow_events_sync
1320
1321Calls XAllowEvents with SyncBoth for the most recent grab.
1322
1323=item $term->allow_events_replay
1324
1325Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1326recent grab.
1327
1328=item $term->ungrab
1329
1330Calls XUngrab for the most recent grab. Is called automatically on
1331evaluation errors, as it is better to lose the grab in the error case as
1332the session.
1333
1109=back 1334=back
1110 1335
1111=cut 1336=cut
1112 1337
1113package urxvt::popup; 1338package urxvt::popup;
1128 $item->{render} ||= sub { $_[0]{text} }; 1353 $item->{render} ||= sub { $_[0]{text} };
1129 1354
1130 push @{ $self->{item} }, $item; 1355 push @{ $self->{item} }, $item;
1131} 1356}
1132 1357
1133sub add_separator { 1358=item $popup->add_title ($title)
1134 my ($self, $sep) = @_;
1135 1359
1136 $sep ||= "═"; 1360Adds a non-clickable title to the popup.
1137 1361
1138 $self->add_item ({ 1362=cut
1139 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1140 text => "",
1141 render => sub { $sep x $urxvt::TERM->ncol },
1142 activate => sub { },
1143 });
1144}
1145 1363
1146sub add_title { 1364sub add_title {
1147 my ($self, $title) = @_; 1365 my ($self, $title) = @_;
1148 1366
1149 $self->add_item ({ 1367 $self->add_item ({
1151 text => $title, 1369 text => $title,
1152 activate => sub { }, 1370 activate => sub { },
1153 }); 1371 });
1154} 1372}
1155 1373
1374=item $popup->add_separator ([$sepchr])
1375
1376Creates a separator, optionally using the character given as C<$sepchr>.
1377
1378=cut
1379
1380sub add_separator {
1381 my ($self, $sep) = @_;
1382
1383 $sep ||= "=";
1384
1385 $self->add_item ({
1386 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1387 text => "",
1388 render => sub { $sep x $self->{term}->ncol },
1389 activate => sub { },
1390 });
1391}
1392
1393=item $popup->add_button ($text, $cb)
1394
1395Adds a clickable button to the popup. C<$cb> is called whenever it is
1396selected.
1397
1398=cut
1399
1156sub add_button { 1400sub add_button {
1157 my ($self, $text, $cb) = @_; 1401 my ($self, $text, $cb) = @_;
1158 1402
1159 $self->add_item ({ type => "button", text => "[ $text ]", activate => $cb}); 1403 $self->add_item ({ type => "button", text => $text, activate => $cb});
1160} 1404}
1405
1406=item $popup->add_toggle ($text, $cb, $initial_value)
1407
1408Adds a toggle/checkbox item to the popup. Teh callback gets called
1409whenever it gets toggled, with a boolean indicating its value as its first
1410argument.
1411
1412=cut
1161 1413
1162sub add_toggle { 1414sub add_toggle {
1163 my ($self, $text, $cb, $value) = @_; 1415 my ($self, $text, $cb, $value) = @_;
1164 1416
1165 my $item; $item = { 1417 my $item; $item = {
1166 type => "button", 1418 type => "button",
1167 text => " $text", 1419 text => " $text",
1168 value => $value, 1420 value => $value,
1169 render => sub { ($_[0]{value} ? "* " : " ") . $text }, 1421 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1170 activate => sub { $cb->($_[0]{value} = !$_[0]{value}); }, 1422 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1171 }; 1423 };
1172 1424
1173 $self->add_item ($item); 1425 $self->add_item ($item);
1174} 1426}
1427
1428=item $popup->show
1429
1430Displays the popup (which is initially hidden).
1431
1432=cut
1175 1433
1176sub show { 1434sub show {
1177 my ($self) = @_; 1435 my ($self) = @_;
1178 1436
1179 local $urxvt::popup::self = $self; 1437 local $urxvt::popup::self = $self;
1180 1438
1439 my $env = $self->{term}->env;
1440 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1441 delete $env->{LC_ALL};
1442 $env->{LC_CTYPE} = $self->{term}->locale;
1443
1444 urxvt::term->new ($env, $self->{term}->resource ("name"),
1181 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1445 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,
1182 "--transient-for" => $self->{term}->parent, 1446 "--transient-for" => $self->{term}->parent,
1447 "-display" => $self->{term}->display_id,
1183 "-pe" => "urxvt-popup") 1448 "-pe" => "urxvt-popup")
1184 or die "unable to create popup window\n"; 1449 or die "unable to create popup window\n";
1185} 1450}
1186 1451
1187sub DESTROY { 1452sub DESTROY {
1188 my ($self) = @_; 1453 my ($self) = @_;
1189 1454
1190 delete $self->{term}{_destroy}{$self}; 1455 delete $self->{term}{_destroy}{$self};
1191 $self->{term}->ungrab; 1456 $self->{term}->ungrab;
1192} 1457}
1458
1459=back
1193 1460
1194=head2 The C<urxvt::timer> Class 1461=head2 The C<urxvt::timer> Class
1195 1462
1196This class implements timer watchers/events. Time is represented as a 1463This class implements timer watchers/events. Time is represented as a
1197fractional number of seconds since the epoch. Example: 1464fractional number of seconds since the epoch. Example:
1250 1517
1251 $term->{socket} = ... 1518 $term->{socket} = ...
1252 $term->{iow} = urxvt::iow 1519 $term->{iow} = urxvt::iow
1253 ->new 1520 ->new
1254 ->fd (fileno $term->{socket}) 1521 ->fd (fileno $term->{socket})
1255 ->events (1) # wait for read data 1522 ->events (urxvt::EVENT_READ)
1256 ->start 1523 ->start
1257 ->cb (sub { 1524 ->cb (sub {
1258 my ($iow, $revents) = @_; 1525 my ($iow, $revents) = @_;
1259 # $revents must be 1 here, no need to check 1526 # $revents must be 1 here, no need to check
1260 sysread $term->{socket}, my $buf, 8192 1527 sysread $term->{socket}, my $buf, 8192
1277 1544
1278Set the filedescriptor (not handle) to watch. 1545Set the filedescriptor (not handle) to watch.
1279 1546
1280=item $iow = $iow->events ($eventmask) 1547=item $iow = $iow->events ($eventmask)
1281 1548
1282Set the event mask to watch. Bit #0 (value C<1>) enables watching for read 1549Set the event mask to watch. The only allowed values are
1283data, Bit #1 (value C<2>) enables watching for write data. 1550C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
1551together, or C<urxvt::EVENT_NONE>.
1284 1552
1285=item $iow = $iow->start 1553=item $iow = $iow->start
1286 1554
1287Start watching for requested events on the given handle. 1555Start watching for requested events on the given handle.
1288 1556

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