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Revision 1.90 by root, Thu Jan 12 12:15:10 2006 UTC vs.
Revision 1.113 by root, Fri Jan 20 10:27:08 2006 UTC

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
40Or by adding them to the resource for extensions loaded by default:
41
42 URxvt.perl-ext-common: default,automove-background,selection-autotransform
39 43
40=over 4 44=over 4
41 45
42=item selection (enabled by default) 46=item selection (enabled by default)
43 47
66 URxvt.selection.pattern-0: \\|([^|]+)\\| 70 URxvt.selection.pattern-0: \\|([^|]+)\\|
67 71
68You can look at the source of the selection extension to see more 72You can look at the source of the selection extension to see more
69interesting uses, such as parsing a line from beginning to end. 73interesting uses, such as parsing a line from beginning to end.
70 74
71This extension also offers the following bindable keyboard command: 75This extension also offers following bindable keyboard commands:
72 76
73=over 4 77=over 4
74 78
75=item rot13 79=item rot13
76 80
88=item selection-popup (enabled by default) 92=item selection-popup (enabled by default)
89 93
90Binds a popup menu to Ctrl-Button3 that lets you convert the selection 94Binds a popup menu to Ctrl-Button3 that lets you convert the selection
91text into various other formats/action (such as uri unescaping, perl 95text into various other formats/action (such as uri unescaping, perl
92evalution, web-browser starting etc.), depending on content. 96evalution, web-browser starting etc.), depending on content.
97
98Other extensions can extend this popup menu by pushing a code reference
99onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the
100popup is displayed.
101
102It's sole argument is the popup menu, which can be modified. The selection
103is in C<$_>, which can be used to decide wether to add something or not.
104It should either return nothing or a string and a code reference. The
105string will be used as button text and the code reference will be called
106when the button gets activated and should transform C<$_>.
107
108The following will add an entry C<a to b> that transforms all C<a>s in
109the selection to C<b>s, but only if the selection currently contains any
110C<a>s:
111
112 push @{ $self->{term}{selection_popup_hook} }, sub {
113 /a/ ? ("a to be" => sub { s/a/b/g }
114 : ()
115 };
93 116
94=item searchable-scrollback<hotkey> (enabled by default) 117=item searchable-scrollback<hotkey> (enabled by default)
95 118
96Adds regex search functionality to the scrollback buffer, triggered 119Adds regex search functionality to the scrollback buffer, triggered
97by a hotkey (default: C<M-s>). While in search mode, normal terminal 120by a hotkey (default: C<M-s>). While in search mode, normal terminal
120 143
121For example, the following will transform selections of the form 144For example, the following will transform selections of the form
122C<filename:number>, often seen in compiler messages, into C<vi +$filename 145C<filename:number>, often seen in compiler messages, into C<vi +$filename
123$word>: 146$word>:
124 147
125 URxvt.selection-autotransform.0: s/^(\\S+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/ 148 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
126 149
127And this example matches the same,but replaces it with vi-commands you can 150And this example matches the same,but replaces it with vi-commands you can
128paste directly into your (vi :) editor: 151paste directly into your (vi :) editor:
129 152
130 URxvt.selection-autotransform.0: s/^(S+):(d+):?$/\\x1b:e \\Q$1\\E\\x0d:$2\\x0d/ 153 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
131 154
132Of course, this can be modified to suit your needs and your editor :) 155Of course, this can be modified to suit your needs and your editor :)
156
157To expand the example above to typical perl error messages ("XXX at
158FILENAME line YYY."), you need a slightly more elaborate solution:
159
160 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
161 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
162
163The first line tells the selection code to treat the unchanging part of
164every error message as a selection pattern, and the second line transforms
165the message into vi commands to load the file.
133 166
134=item mark-urls 167=item mark-urls
135 168
136Uses per-line display filtering (C<on_line_update>) to underline urls and 169Uses per-line display filtering (C<on_line_update>) to underline urls and
137make them clickable. When middle-clicked, the program specified in the 170make them clickable. When middle-clicked, the program specified in the
138resource C<urlLauncher> (default C<x-www-browser>) will be started with 171resource C<urlLauncher> (default C<x-www-browser>) will be started with
139the URL as first argument. 172the URL as first argument.
140 173
174=item automove-background
175
176This is basically a one-line extension that dynamically changes the background pixmap offset
177to the window position, in effect creating the same effect as pseudo transparency with
178a custom pixmap. No scaling is supported in this mode. Exmaple:
179
180 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
181
141=item block-graphics-to-ascii 182=item block-graphics-to-ascii
142 183
143A not very useful example of filtering all text output to the terminal, 184A not very useful example of filtering all text output to the terminal,
144by replacing all line-drawing characters (U+2500 .. U+259F) by a 185by replacing all line-drawing characters (U+2500 .. U+259F) by a
145similar-looking ascii character. 186similar-looking ascii character.
151=item example-refresh-hooks 192=item example-refresh-hooks
152 193
153Displays a very simple digital clock in the upper right corner of the 194Displays a very simple digital clock in the upper right corner of the
154window. Illustrates overwriting the refresh callbacks to create your own 195window. Illustrates overwriting the refresh callbacks to create your own
155overlays or changes. 196overlays or changes.
197
198=item selection-pastebin
199
200This is a little rarely useful extension that Uploads the selection as
201textfile to a remote site (or does other things). (The implementation is
202not currently secure for use in a multiuser environment as it writes to
203F</tmp> directly.).
204
205It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
206i.e.
207
208 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
209
210Pressing this combination runs a command with C<%> replaced by the name of
211the textfile. This command can be set via a resource:
212
213 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
214
215And the default is likely not useful to anybody but the few people around
216here :)
217
218The name of the textfile is the hex encoded md5 sum of the selection, so
219the same content should lead to the same filename.
220
221After a successful upload the selection will be replaced by the text given
222in the C<selection-pastebin-url> resource (again, the % is the placeholder
223for the filename):
224
225 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
156 226
157=back 227=back
158 228
159=head1 API DOCUMENTATION 229=head1 API DOCUMENTATION
160 230
233called whenever the relevant event happens. 303called whenever the relevant event happens.
234 304
235The first argument passed to them is an extension oject as described in 305The first argument passed to them is an extension oject as described in
236the in the C<Extension Objects> section. 306the in the C<Extension Objects> section.
237 307
238B<All> of these hooks must return a boolean value. If it is true, then the 308B<All> of these hooks must return a boolean value. If any of the called
239event counts as being I<consumed>, and the invocation of other hooks is 309hooks returns true, then the event counts as being I<consumed>, and the
240skipped, and the relevant action might not be carried out by the C++ code. 310relevant action might not be carried out by the C++ code.
241 311
242I<< When in doubt, return a false value (preferably C<()>). >> 312I<< When in doubt, return a false value (preferably C<()>). >>
243 313
244=over 4 314=over 4
245 315
246=item on_init $term 316=item on_init $term
247 317
248Called after a new terminal object has been initialized, but before 318Called after a new terminal object has been initialized, but before
249windows are created or the command gets run. Most methods are unsafe to 319windows are created or the command gets run. Most methods are unsafe to
250call or deliver senseless data, as terminal size and other characteristics 320call or deliver senseless data, as terminal size and other characteristics
251have not yet been determined. You can safely query and change resources, 321have not yet been determined. You can safely query and change resources
252though. 322and options, though. For many purposes the C<on_start> hook is a better
323place.
324
325=item on_start $term
326
327Called at the very end of initialisation of a new terminal, just before
328trying to map (display) the toplevel and returning to the mainloop.
329
330=item on_destroy $term
331
332Called whenever something tries to destroy terminal, before doing anything
333yet. If this hook returns true, then destruction is skipped, but this is
334rarely a good idea.
253 335
254=item on_reset $term 336=item on_reset $term
255 337
256Called after the screen is "reset" for any reason, such as resizing or 338Called after the screen is "reset" for any reason, such as resizing or
257control sequences. Here is where you can react on changes to size-related 339control sequences. Here is where you can react on changes to size-related
258variables. 340variables.
259 341
260=item on_start $term 342=item on_child_start $term, $pid
261 343
262Called at the very end of initialisation of a new terminal, just before 344Called just after the child process has been C<fork>ed.
263returning to the mainloop. 345
346=item on_child_exit $term, $status
347
348Called just after the child process has exited. C<$status> is the status
349from C<waitpid>.
264 350
265=item on_sel_make $term, $eventtime 351=item on_sel_make $term, $eventtime
266 352
267Called whenever a selection has been made by the user, but before the 353Called whenever a selection has been made by the user, but before the
268selection text is copied, so changes to the beginning, end or type of the 354selection text is copied, so changes to the beginning, end or type of the
361 447
362Called whenever the user presses a key combination that has a 448Called whenever the user presses a key combination that has a
363C<perl:string> action bound to it (see description of the B<keysym> 449C<perl:string> action bound to it (see description of the B<keysym>
364resource in the @@RXVT_NAME@@(1) manpage). 450resource in the @@RXVT_NAME@@(1) manpage).
365 451
452=item on_x_event $term, $event
453
454Called on every X event received on the vt window (and possibly other
455windows). Should only be used as a last resort. Most event structure
456members are not passed.
457
366=item on_focus_in $term 458=item on_focus_in $term
367 459
368Called whenever the window gets the keyboard focus, before rxvt-unicode 460Called whenever the window gets the keyboard focus, before rxvt-unicode
369does focus in processing. 461does focus in processing.
370 462
371=item on_focus_out $term 463=item on_focus_out $term
372 464
373Called wheneever the window loses keyboard focus, before rxvt-unicode does 465Called wheneever the window loses keyboard focus, before rxvt-unicode does
374focus out processing. 466focus out processing.
467
468=item on_configure_notify $term, $event
375 469
376=item on_key_press $term, $event, $keysym, $octets 470=item on_key_press $term, $event, $keysym, $octets
377 471
378=item on_key_release $term, $event, $keysym 472=item on_key_release $term, $event, $keysym
379 473
411use Scalar::Util (); 505use Scalar::Util ();
412use List::Util (); 506use List::Util ();
413 507
414our $VERSION = 1; 508our $VERSION = 1;
415our $TERM; 509our $TERM;
510our @TERM_INIT;
511our @TERM_EXT;
416our @HOOKNAME; 512our @HOOKNAME;
417our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 513our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
418our %OPTION; 514our %OPTION;
419 515
420our $LIBDIR; 516our $LIBDIR;
442=item $urxvt::TERM 538=item $urxvt::TERM
443 539
444The current terminal. This variable stores the current C<urxvt::term> 540The current terminal. This variable stores the current C<urxvt::term>
445object, whenever a callback/hook is executing. 541object, whenever a callback/hook is executing.
446 542
543=item @urxvt::TERM_INIT
544
545All coderefs in this array will be called as methods of the next newly
546created C<urxvt::term> object (during the C<on_init> phase). The array
547gets cleared before the codereferences that were in it are being executed,
548so coderefs can push themselves onto it again if they so desire.
549
550This complements to the perl-eval commandline option, but gets executed
551first.
552
553=item @urxvt::TERM_EXT
554
555Works similar to C<@TERM_INIT>, but contains perl package/class names, which
556get registered as normal extensions after calling the hooks in C<@TERM_INIT>
557but before other extensions. Gets cleared just like C<@TERM_INIT>.
558
447=back 559=back
448 560
449=head2 Functions in the C<urxvt> Package 561=head2 Functions in the C<urxvt> Package
450 562
451=over 4 563=over 4
465Using this function has the advantage that its output ends up in the 577Using this function has the advantage that its output ends up in the
466correct place, e.g. on stderr of the connecting urxvtc client. 578correct place, e.g. on stderr of the connecting urxvtc client.
467 579
468Messages have a size limit of 1023 bytes currently. 580Messages have a size limit of 1023 bytes currently.
469 581
470=item $is_safe = urxvt::safe
471
472Returns true when it is safe to do potentially unsafe things, such as
473evaluating perl code specified by the user. This is true when urxvt was
474started setuid or setgid.
475
476=item $time = urxvt::NOW 582=item $time = urxvt::NOW
477 583
478Returns the "current time" (as per the event loop). 584Returns the "current time" (as per the event loop).
479 585
480=item urxvt::CurrentTime 586=item urxvt::CurrentTime
481 587
482=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 588=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
483Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 589Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
484Button4Mask, Button5Mask, AnyModifier 590Button4Mask, Button5Mask, AnyModifier
591
592=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
593ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
594PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
595Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
596KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
597ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
598FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
599
600=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
601EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
602GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
603UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
604ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
605CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
606SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
485 607
486Various constants for use in X calls and event processing. 608Various constants for use in X calls and event processing.
487 609
488=back 610=back
489 611
540=back 662=back
541 663
542=cut 664=cut
543 665
544BEGIN { 666BEGIN {
545 urxvt->bootstrap;
546
547 # overwrite perl's warn 667 # overwrite perl's warn
548 *CORE::GLOBAL::warn = sub { 668 *CORE::GLOBAL::warn = sub {
549 my $msg = join "", @_; 669 my $msg = join "", @_;
550 $msg .= "\n" 670 $msg .= "\n"
551 unless $msg =~ /\n$/; 671 unless $msg =~ /\n$/;
552 urxvt::warn ($msg); 672 urxvt::warn ($msg);
553 }; 673 };
554
555 # %ENV is the original startup environment
556 delete $ENV{IFS};
557 delete $ENV{CDPATH};
558 delete $ENV{BASH_ENV};
559 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
560} 674}
561 675
562my @hook_count;
563my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 676my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
564 677
565sub verbose { 678sub verbose {
566 my ($level, $msg) = @_; 679 my ($level, $msg) = @_;
567 warn "$msg\n" if $level <= $verbosity; 680 warn "$msg\n" if $level <= $verbosity;
568} 681}
569 682
570my $extension_pkg = "extension0000";
571my %extension_pkg; 683my %extension_pkg;
572 684
573# load a single script into its own package, once only 685# load a single script into its own package, once only
574sub extension_package($) { 686sub extension_package($) {
575 my ($path) = @_; 687 my ($path) = @_;
576 688
577 $extension_pkg{$path} ||= do { 689 $extension_pkg{$path} ||= do {
578 my $pkg = "urxvt::" . ($extension_pkg++); 690 $path =~ /([^\/\\]+)$/;
691 my $pkg = $1;
692 $pkg =~ s/[^[:word:]]/_/g;
693 $pkg = "urxvt::ext::$pkg";
579 694
580 verbose 3, "loading extension '$path' into package '$pkg'"; 695 verbose 3, "loading extension '$path' into package '$pkg'";
581 696
582 open my $fh, "<:raw", $path 697 open my $fh, "<:raw", $path
583 or die "$path: $!"; 698 or die "$path: $!";
584 699
585 my $source = untaint 700 my $source =
586 "package $pkg; use strict; use utf8;\n" 701 "package $pkg; use strict; use utf8;\n"
587 . "use base urxvt::term::extension::;\n"
588 . "#line 1 \"$path\"\n{\n" 702 . "#line 1 \"$path\"\n{\n"
589 . (do { local $/; <$fh> }) 703 . (do { local $/; <$fh> })
590 . "\n};\n1"; 704 . "\n};\n1";
591 705
592 eval $source 706 eval $source
606 if ($htype == 0) { # INIT 720 if ($htype == 0) { # INIT
607 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 721 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
608 722
609 my %ext_arg; 723 my %ext_arg;
610 724
725 {
726 my @init = @TERM_INIT;
727 @TERM_INIT = ();
728 $_->($TERM) for @init;
729 my @pkg = @TERM_EXT;
730 @TERM_EXT = ();
731 $TERM->register_package ($_) for @pkg;
732 }
733
611 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 734 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
612 if ($_ eq "default") { 735 if ($_ eq "default") {
613 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 736 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
614 } elsif (/^-(.*)$/) { 737 } elsif (/^-(.*)$/) {
615 delete $ext_arg{$1}; 738 delete $ext_arg{$1};
616 } elsif (/^([^<]+)<(.*)>$/) { 739 } elsif (/^([^<]+)<(.*)>$/) {
641 if $verbosity >= 10; 764 if $verbosity >= 10;
642 765
643 keys %$cb; 766 keys %$cb;
644 767
645 while (my ($pkg, $cb) = each %$cb) { 768 while (my ($pkg, $cb) = each %$cb) {
646 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 769 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
647 and last; 770 $retval ||= $retval_;
648 771
649 if ($@) { 772 if ($@) {
650 $TERM->ungrab; # better to lose the grab than the session 773 $TERM->ungrab; # better to lose the grab than the session
651 warn $@; 774 warn $@;
652 } 775 }
655 verbose 11, "$HOOKNAME[$htype] returning <$retval>" 778 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
656 if $verbosity >= 11; 779 if $verbosity >= 11;
657 } 780 }
658 781
659 if ($htype == 1) { # DESTROY 782 if ($htype == 1) { # DESTROY
660 if (my $hook = delete $TERM->{_hook}) {
661 for my $htype (0..$#$hook) {
662 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
663 or set_should_invoke $htype, 0;
664 }
665 }
666
667 # clear package objects 783 # clear package objects
668 %$_ = () for values %{ $TERM->{_pkg} }; 784 %$_ = () for values %{ $TERM->{_pkg} };
669 785
670 # clear package 786 # clear package
671 %$TERM = (); 787 %$TERM = ();
672 } 788 }
673 789
674 $retval 790 $retval
675}
676
677sub exec_async(@) {
678 my $pid = fork;
679
680 return
681 if !defined $pid or $pid;
682
683 %ENV = %{ $TERM->env };
684
685 exec @_;
686 _exit 255;
687} 791}
688 792
689# urxvt::term::extension 793# urxvt::term::extension
690 794
691package urxvt::term::extension; 795package urxvt::term::extension;
697 while (my ($name, $cb) = each %hook) { 801 while (my ($name, $cb) = each %hook) {
698 my $htype = $HOOKTYPE{uc $name}; 802 my $htype = $HOOKTYPE{uc $name};
699 defined $htype 803 defined $htype
700 or Carp::croak "unsupported hook type '$name'"; 804 or Carp::croak "unsupported hook type '$name'";
701 805
806 $self->set_should_invoke ($htype, +1)
702 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 807 unless exists $self->{term}{_hook}[$htype]{$pkg};
703 $hook_count[$htype]++
704 or urxvt::set_should_invoke $htype, 1;
705 }
706 808
707 $self->{term}{_hook}[$htype]{$pkg} = $cb; 809 $self->{term}{_hook}[$htype]{$pkg} = $cb;
708 } 810 }
709} 811}
710 812
715 for my $name (@hook) { 817 for my $name (@hook) {
716 my $htype = $HOOKTYPE{uc $name}; 818 my $htype = $HOOKTYPE{uc $name};
717 defined $htype 819 defined $htype
718 or Carp::croak "unsupported hook type '$name'"; 820 or Carp::croak "unsupported hook type '$name'";
719 821
822 $self->set_should_invoke ($htype, -1)
720 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 823 if delete $self->{term}{_hook}[$htype]{$pkg};
721 --$hook_count[$htype]
722 or urxvt::set_should_invoke $htype, 0;
723 }
724 } 824 }
725} 825}
726 826
727our $AUTOLOAD; 827our $AUTOLOAD;
728 828
834# find on_xxx subs in the package and register them 934# find on_xxx subs in the package and register them
835# as hooks 935# as hooks
836sub register_package { 936sub register_package {
837 my ($self, $pkg, $argv) = @_; 937 my ($self, $pkg, $argv) = @_;
838 938
939 no strict 'refs';
940
941 urxvt::verbose 6, "register package $pkg to $self";
942
943 @{"$pkg\::ISA"} = urxvt::term::extension::;
944
839 my $proxy = bless { 945 my $proxy = bless {
840 _pkg => $pkg, 946 _pkg => $pkg,
841 argv => $argv, 947 argv => $argv,
842 }, $pkg; 948 }, $pkg;
843 Scalar::Util::weaken ($proxy->{term} = $self); 949 Scalar::Util::weaken ($proxy->{term} = $self);
874 980
875Destroy the terminal object (close the window, free resources 981Destroy the terminal object (close the window, free resources
876etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 982etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
877watchers (timers, io watchers) are still active. 983watchers (timers, io watchers) are still active.
878 984
985=item $term->exec_async ($cmd[, @args])
986
987Works like the combination of the C<fork>/C<exec> builtins, which executes
988("starts") programs in the background. This function takes care of setting
989the user environment before exec'ing the command (e.g. C<PATH>) and should
990be preferred over explicit calls to C<exec> or C<system>.
991
992Returns the pid of the subprocess or C<undef> on error.
993
994=cut
995
996sub exec_async {
997 my $self = shift;
998
999 my $pid = fork;
1000
1001 return $pid
1002 if !defined $pid or $pid;
1003
1004 %ENV = %{ $self->env };
1005
1006 exec @_;
1007 urxvt::_exit 255;
1008}
1009
879=item $isset = $term->option ($optval[, $set]) 1010=item $isset = $term->option ($optval[, $set])
880 1011
881Returns true if the option specified by C<$optval> is enabled, and 1012Returns true if the option specified by C<$optval> is enabled, and
882optionally change it. All option values are stored by name in the hash 1013optionally change it. All option values are stored by name in the hash
883C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. 1014C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
885Here is a a likely non-exhaustive list of option names, please see the 1016Here is a a likely non-exhaustive list of option names, please see the
886source file F</src/optinc.h> to see the actual list: 1017source file F</src/optinc.h> to see the actual list:
887 1018
888 borderLess console cursorBlink cursorUnderline hold iconic insecure 1019 borderLess console cursorBlink cursorUnderline hold iconic insecure
889 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1020 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
890 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1021 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
891 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1022 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
892 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1023 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
893 tripleclickwords utmpInhibit visualBell 1024 transparent tripleclickwords utmpInhibit visualBell
894 1025
895=item $value = $term->resource ($name[, $newval]) 1026=item $value = $term->resource ($name[, $newval])
896 1027
897Returns the current resource value associated with a given name and 1028Returns the current resource value associated with a given name and
898optionally sets a new value. Setting values is most useful in the C<init> 1029optionally sets a new value. Setting values is most useful in the C<init>
915 1046
916 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1047 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
917 borderLess color cursorBlink cursorUnderline cutchars delete_key 1048 borderLess color cursorBlink cursorUnderline cutchars delete_key
918 display_name embed ext_bwidth fade font geometry hold iconName 1049 display_name embed ext_bwidth fade font geometry hold iconName
919 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1050 imFont imLocale inputMethod insecure int_bwidth intensityStyles
920 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1051 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
921 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1052 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
922 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1053 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
923 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1054 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
924 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1055 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
925 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1056 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
926 shade term_name title transparent transparent_all tripleclickwords 1057 secondaryScreen secondaryScroll selectstyle shade term_name title
927 utmpInhibit visualBell 1058 transient_for transparent transparent_all tripleclickwords utmpInhibit
1059 visualBell
928 1060
929=cut 1061=cut
930 1062
931sub resource($$;$) { 1063sub resource($$;$) {
932 my ($self, $name) = (shift, shift); 1064 my ($self, $name) = (shift, shift);
1133 1265
1134=item $windowid = $term->vt 1266=item $windowid = $term->vt
1135 1267
1136Return the window id of the terminal window. 1268Return the window id of the terminal window.
1137 1269
1270=item $term->vt_emask_add ($x_event_mask)
1271
1272Adds the specified events to the vt event mask. Useful e.g. when you want
1273to receive pointer events all the times:
1274
1275 $term->vt_emask_add (urxvt::PointerMotionMask);
1276
1138=item $window_width = $term->width 1277=item $window_width = $term->width
1139 1278
1140=item $window_height = $term->height 1279=item $window_height = $term->height
1141 1280
1142=item $font_width = $term->fwidth 1281=item $font_width = $term->fwidth
1155 1294
1156=item $max_scrollback = $term->saveLines 1295=item $max_scrollback = $term->saveLines
1157 1296
1158=item $nrow_plus_saveLines = $term->total_rows 1297=item $nrow_plus_saveLines = $term->total_rows
1159 1298
1160=item $lines_in_scrollback = $term->nsaved 1299=item $topmost_scrollback_row = $term->top_row
1161 1300
1162Return various integers describing terminal characteristics. 1301Return various integers describing terminal characteristics.
1163 1302
1164=item $x_display = $term->display_id 1303=item $x_display = $term->display_id
1165 1304
1193Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1332Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1194AltGr), the meta key (often Alt) and the num lock key, if applicable. 1333AltGr), the meta key (often Alt) and the num lock key, if applicable.
1195 1334
1196=item $view_start = $term->view_start ([$newvalue]) 1335=item $view_start = $term->view_start ([$newvalue])
1197 1336
1198Returns the negative row number of the topmost line. Minimum value is 1337Returns the row number of the topmost displayed line. Maximum value is
1199C<0>, which displays the normal terminal contents. Larger values scroll 1338C<0>, which displays the normal terminal contents. Lower values scroll
1200this many lines into the scrollback buffer. 1339this many lines into the scrollback buffer.
1201 1340
1202=item $term->want_refresh 1341=item $term->want_refresh
1203 1342
1204Requests a screen refresh. At the next opportunity, rxvt-unicode will 1343Requests a screen refresh. At the next opportunity, rxvt-unicode will
1517 my $env = $self->{term}->env; 1656 my $env = $self->{term}->env;
1518 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. 1657 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1519 delete $env->{LC_ALL}; 1658 delete $env->{LC_ALL};
1520 $env->{LC_CTYPE} = $self->{term}->locale; 1659 $env->{LC_CTYPE} = $self->{term}->locale;
1521 1660
1522 urxvt::term->new ($env, $self->{term}->resource ("name"), 1661 urxvt::term->new ($env, "popup",
1523 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1662 "--perl-lib" => "", "--perl-ext-common" => "",
1663 "-pty-fd" => -1, "-sl" => 0,
1664 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1524 "--transient-for" => $self->{term}->parent, 1665 "--transient-for" => $self->{term}->parent,
1525 "-display" => $self->{term}->display_id, 1666 "-display" => $self->{term}->display_id,
1526 "-pe" => "urxvt-popup") 1667 "-pe" => "urxvt-popup")
1527 or die "unable to create popup window\n"; 1668 or die "unable to create popup window\n";
1528} 1669}
1533 delete $self->{term}{_destroy}{$self}; 1674 delete $self->{term}{_destroy}{$self};
1534 $self->{term}->ungrab; 1675 $self->{term}->ungrab;
1535} 1676}
1536 1677
1537=back 1678=back
1679
1680=cut
1681
1682package urxvt::watcher;
1683
1684@urxvt::timer::ISA = __PACKAGE__;
1685@urxvt::iow::ISA = __PACKAGE__;
1686@urxvt::pw::ISA = __PACKAGE__;
1687@urxvt::iw::ISA = __PACKAGE__;
1538 1688
1539=head2 The C<urxvt::timer> Class 1689=head2 The C<urxvt::timer> Class
1540 1690
1541This class implements timer watchers/events. Time is represented as a 1691This class implements timer watchers/events. Time is represented as a
1542fractional number of seconds since the epoch. Example: 1692fractional number of seconds since the epoch. Example:
1580Start the timer. 1730Start the timer.
1581 1731
1582=item $timer = $timer->start ($tstamp) 1732=item $timer = $timer->start ($tstamp)
1583 1733
1584Set the event trigger time to C<$tstamp> and start the timer. 1734Set the event trigger time to C<$tstamp> and start the timer.
1735
1736=item $timer = $timer->after ($delay)
1737
1738Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1585 1739
1586=item $timer = $timer->stop 1740=item $timer = $timer->stop
1587 1741
1588Stop the timer. 1742Stop the timer.
1589 1743

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