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Revision 1.60 by root, Mon Jan 9 01:21:43 2006 UTC vs.
Revision 1.82 by root, Thu Jan 12 01:30:53 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 clicked, the program specified in the resource
91C<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 620# urxvt::term::extension
574 621
575sub urxvt::term::proxy::AUTOLOAD { 622package urxvt::term::extension;
576 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 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 $AUTOLOAD =~ /:([^:]+)$/
577 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 662 or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
578 663
579 eval qq{ 664 eval qq{
580 sub $urxvt::term::proxy::AUTOLOAD { 665 sub $AUTOLOAD {
581 my \$proxy = shift; 666 my \$proxy = shift;
582 \$proxy->{term}->$1 (\@_) 667 \$proxy->{term}->$1 (\@_)
583 } 668 }
584 1 669 1
585 } or die "FATAL: unable to compile method forwarder: $@"; 670 } or die "FATAL: unable to compile method forwarder: $@";
586 671
587 goto &$urxvt::term::proxy::AUTOLOAD; 672 goto &$AUTOLOAD;
588} 673}
589 674
590sub urxvt::term::proxy::DESTROY { 675sub DESTROY {
591 # nop 676 # nop
592} 677}
593 678
594# urxvt::destroy_hook 679# urxvt::destroy_hook
595 680
605 690
606=head2 The C<urxvt::anyevent> Class 691=head2 The C<urxvt::anyevent> Class
607 692
608The 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
609C<AnyEvent> module - any module using it will work inside urxvt without 694C<AnyEvent> module - any module using it will work inside urxvt without
610further work. The only exception is that you cannot wait on condition 695further programming. The only exception is that you cannot wait on
611variables, 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
612cannot use blocking APIs, but the non-blocking variant should work. 697is that you cannot use blocking APIs, but the non-blocking variant should
698work.
613 699
614=cut 700=cut
615 701
616our $VERSION = 1; 702our $VERSION = 1;
617 703
662 ${$_[0]}++; 748 ${$_[0]}++;
663} 749}
664 750
665sub urxvt::anyevent::condvar::wait { 751sub urxvt::anyevent::condvar::wait {
666 unless (${$_[0]}) { 752 unless (${$_[0]}) {
667 require Carp;
668 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";
669 } 754 }
670} 755}
671 756
672package urxvt::term; 757package urxvt::term;
673 758
674=head2 The C<urxvt::term> Class 759=head2 The C<urxvt::term> Class
675 760
676=over 4 761=over 4
677 762
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
678=item $term->destroy 804=item $term->destroy
679 805
680Destroy 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.
681 809
682=item $isset = $term->option ($optval[, $set]) 810=item $isset = $term->option ($optval[, $set])
683 811
684Returns true if the option specified by C<$optval> is enabled, and 812Returns true if the option specified by C<$optval> is enabled, and
685optionally change it. All option values are stored by name in the hash 813optionally change it. All option values are stored by name in the hash
735 my ($self, $name) = (shift, shift); 863 my ($self, $name) = (shift, shift);
736 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 864 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
737 &urxvt::term::_resource 865 &urxvt::term::_resource
738} 866}
739 867
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
740=item $rend = $term->rstyle ([$new_rstyle]) 884=item $rend = $term->rstyle ([$new_rstyle])
741 885
742Return and optionally change the current rendition. Text that is output by 886Return and optionally change the current rendition. Text that is output by
743the terminal application will use this style. 887the terminal application will use this style.
744 888
763 907
764=item $oldtext = $term->selection ([$newtext]) 908=item $oldtext = $term->selection ([$newtext])
765 909
766Return the current selection text and optionally replace it by C<$newtext>. 910Return the current selection text and optionally replace it by C<$newtext>.
767 911
768#=item $term->overlay ($x, $y, $text) 912=item $term->overlay_simple ($x, $y, $text)
769# 913
770#Create a simple multi-line overlay box. See the next method for details. 914Create a simple multi-line overlay box. See the next method for details.
771# 915
772#=cut 916=cut
773# 917
774#sub urxvt::term::scr_overlay { 918sub overlay_simple {
775# my ($self, $x, $y, $text) = @_; 919 my ($self, $x, $y, $text) = @_;
776# 920
777# my @lines = split /\n/, $text; 921 my @lines = split /\n/, $text;
778# 922
779# my $w = 0; 923 my $w = List::Util::max map $self->strwidth ($_), @lines;
780# for (map $self->strwidth ($_), @lines) { 924
781# $w = $_ if $w < $_;
782# }
783#
784# $self->scr_overlay_new ($x, $y, $w, scalar @lines); 925 my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
785# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 926 $overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
786#} 927
928 $overlay
929}
787 930
788=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 931=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
789 932
790Create a new (empty) overlay at the given position with the given 933Create a new (empty) overlay at the given position with the given
791width/height. C<$rstyle> defines the initial rendition style 934width/height. C<$rstyle> defines the initial rendition style
858 1001
859=item $string = $term->locale_decode ($octets) 1002=item $string = $term->locale_decode ($octets)
860 1003
861Convert the given locale-encoded octets into a perl string. 1004Convert the given locale-encoded octets into a perl string.
862 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
863=item $term->scr_add_lines ($string) 1023=item $term->scr_add_lines ($string)
864 1024
865Write 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
866running inside the terminal. It may not contain command sequences (escape 1026running inside the terminal. It may not contain command sequences (escape
867codes), 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
881 1041
882Write 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
883pass characters instead of octets, you should convert your strings first 1043pass characters instead of octets, you should convert your strings first
884to the locale-specific encoding using C<< $term->locale_encode >>. 1044to the locale-specific encoding using C<< $term->locale_encode >>.
885 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
886=item $windowid = $term->parent 1053=item $windowid = $term->parent
887 1054
888Return the window id of the toplevel window. 1055Return the window id of the toplevel window.
889 1056
890=item $windowid = $term->vt 1057=item $windowid = $term->vt
914=item $nrow_plus_saveLines = $term->total_rows 1081=item $nrow_plus_saveLines = $term->total_rows
915 1082
916=item $lines_in_scrollback = $term->nsaved 1083=item $lines_in_scrollback = $term->nsaved
917 1084
918Return 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}
919 1109
920=item $modifiermask = $term->ModLevel3Mask 1110=item $modifiermask = $term->ModLevel3Mask
921 1111
922=item $modifiermask = $term->ModMetaMask 1112=item $modifiermask = $term->ModMetaMask
923 1113
1100 $offset / $self->{ncol} + $self->{beg}, 1290 $offset / $self->{ncol} + $self->{beg},
1101 $offset % $self->{ncol} 1291 $offset % $self->{ncol}
1102 ) 1292 )
1103} 1293}
1104 1294
1105=item ($row, $col) = $line->coord_of ($offset)
1106=item $text = $term->special_encode $string 1295=item $text = $term->special_encode $string
1107 1296
1108Converts a perl string into the special encoding used by rxvt-unicode, 1297Converts a perl string into the special encoding used by rxvt-unicode,
1109where one character corresponds to one screen cell. See 1298where one character corresponds to one screen cell. See
1110C<< $term->ROW_t >> for details. 1299C<< $term->ROW_t >> for details.
1112=item $string = $term->special_decode $text 1301=item $string = $term->special_decode $text
1113 1302
1114Converts rxvt-unicodes text reprsentation into a perl string. See 1303Converts rxvt-unicodes text reprsentation into a perl string. See
1115C<< $term->ROW_t >> for details. 1304C<< $term->ROW_t >> for details.
1116 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
1117=back 1334=back
1118 1335
1119=cut 1336=cut
1120 1337
1121package urxvt::popup; 1338package urxvt::popup;
1136 $item->{render} ||= sub { $_[0]{text} }; 1353 $item->{render} ||= sub { $_[0]{text} };
1137 1354
1138 push @{ $self->{item} }, $item; 1355 push @{ $self->{item} }, $item;
1139} 1356}
1140 1357
1141sub add_separator { 1358=item $popup->add_title ($title)
1142 my ($self, $sep) = @_;
1143 1359
1144 $sep ||= "═"; 1360Adds a non-clickable title to the popup.
1145 1361
1146 $self->add_item ({ 1362=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 $urxvt::TERM->ncol },
1150 activate => sub { },
1151 });
1152}
1153 1363
1154sub add_title { 1364sub add_title {
1155 my ($self, $title) = @_; 1365 my ($self, $title) = @_;
1156 1366
1157 $self->add_item ({ 1367 $self->add_item ({
1159 text => $title, 1369 text => $title,
1160 activate => sub { }, 1370 activate => sub { },
1161 }); 1371 });
1162} 1372}
1163 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
1164sub add_button { 1400sub add_button {
1165 my ($self, $text, $cb) = @_; 1401 my ($self, $text, $cb) = @_;
1166 1402
1167 $self->add_item ({ type => "button", text => "[ $text ]", activate => $cb}); 1403 $self->add_item ({ type => "button", text => $text, activate => $cb});
1168} 1404}
1405
1406=item $popup->add_toggle ($text, $cb, $initial_value)
1407
1408Adds a toggle/checkbox item to the popup. Teh callback gets called
1409whenever it gets toggled, with a boolean indicating its value as its first
1410argument.
1411
1412=cut
1169 1413
1170sub add_toggle { 1414sub add_toggle {
1171 my ($self, $text, $cb, $value) = @_; 1415 my ($self, $text, $cb, $value) = @_;
1172 1416
1173 my $item; $item = { 1417 my $item; $item = {
1174 type => "button", 1418 type => "button",
1175 text => " $text", 1419 text => " $text",
1176 value => $value, 1420 value => $value,
1177 render => sub { ($_[0]{value} ? "* " : " ") . $text }, 1421 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1178 activate => sub { $cb->($_[0]{value} = !$_[0]{value}); }, 1422 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1179 }; 1423 };
1180 1424
1181 $self->add_item ($item); 1425 $self->add_item ($item);
1182} 1426}
1427
1428=item $popup->show
1429
1430Displays the popup (which is initially hidden).
1431
1432=cut
1183 1433
1184sub show { 1434sub show {
1185 my ($self) = @_; 1435 my ($self) = @_;
1186 1436
1187 local $urxvt::popup::self = $self; 1437 local $urxvt::popup::self = $self;
1188 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"),
1189 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,
1190 "--transient-for" => $self->{term}->parent, 1446 "--transient-for" => $self->{term}->parent,
1447 "-display" => $self->{term}->display_id,
1191 "-pe" => "urxvt-popup") 1448 "-pe" => "urxvt-popup")
1192 or die "unable to create popup window\n"; 1449 or die "unable to create popup window\n";
1193} 1450}
1194 1451
1195sub DESTROY { 1452sub DESTROY {
1196 my ($self) = @_; 1453 my ($self) = @_;
1197 1454
1198 delete $self->{term}{_destroy}{$self}; 1455 delete $self->{term}{_destroy}{$self};
1199 $self->{term}->ungrab; 1456 $self->{term}->ungrab;
1200} 1457}
1458
1459=back
1201 1460
1202=head2 The C<urxvt::timer> Class 1461=head2 The C<urxvt::timer> Class
1203 1462
1204This class implements timer watchers/events. Time is represented as a 1463This class implements timer watchers/events. Time is represented as a
1205fractional number of seconds since the epoch. Example: 1464fractional number of seconds since the epoch. Example:
1258 1517
1259 $term->{socket} = ... 1518 $term->{socket} = ...
1260 $term->{iow} = urxvt::iow 1519 $term->{iow} = urxvt::iow
1261 ->new 1520 ->new
1262 ->fd (fileno $term->{socket}) 1521 ->fd (fileno $term->{socket})
1263 ->events (1) # wait for read data 1522 ->events (urxvt::EVENT_READ)
1264 ->start 1523 ->start
1265 ->cb (sub { 1524 ->cb (sub {
1266 my ($iow, $revents) = @_; 1525 my ($iow, $revents) = @_;
1267 # $revents must be 1 here, no need to check 1526 # $revents must be 1 here, no need to check
1268 sysread $term->{socket}, my $buf, 8192 1527 sysread $term->{socket}, my $buf, 8192
1285 1544
1286Set the filedescriptor (not handle) to watch. 1545Set the filedescriptor (not handle) to watch.
1287 1546
1288=item $iow = $iow->events ($eventmask) 1547=item $iow = $iow->events ($eventmask)
1289 1548
1290Set 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
1291data, 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>.
1292 1552
1293=item $iow = $iow->start 1553=item $iow = $iow->start
1294 1554
1295Start watching for requested events on the given handle. 1555Start watching for requested events on the given handle.
1296 1556

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