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Revision 1.89 by root, Thu Jan 12 12:10:06 2006 UTC vs.
Revision 1.114 by root, Fri Jan 20 12:16:28 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:$2\\x0d/
154
155Of course, this can be modified to suit your needs and your editor :)
156
157To expand the example above to typical perl error messages ("XXX at
158FILENAME line YYY."), you need a slightly more elaborate solution:
159
160 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
161 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/: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.
131 166
132=item mark-urls 167=item mark-urls
133 168
134Uses 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
135make them clickable. When middle-clicked, the program specified in the 170make them clickable. When middle-clicked, the program specified in the
136resource C<urlLauncher> (default C<x-www-browser>) will be started with 171resource C<urlLauncher> (default C<x-www-browser>) will be started with
137the URL as first argument. 172the URL as first argument.
138 173
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
139=item block-graphics-to-ascii 182=item block-graphics-to-ascii
140 183
141A 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,
142by replacing all line-drawing characters (U+2500 .. U+259F) by a 185by replacing all line-drawing characters (U+2500 .. U+259F) by a
143similar-looking ascii character. 186similar-looking ascii character.
149=item example-refresh-hooks 192=item example-refresh-hooks
150 193
151Displays 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
152window. Illustrates overwriting the refresh callbacks to create your own 195window. Illustrates overwriting the refresh callbacks to create your own
153overlays 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/%
154 226
155=back 227=back
156 228
157=head1 API DOCUMENTATION 229=head1 API DOCUMENTATION
158 230
231called whenever the relevant event happens. 303called whenever the relevant event happens.
232 304
233The 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
234the in the C<Extension Objects> section. 306the in the C<Extension Objects> section.
235 307
236B<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
237event 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
238skipped, and the relevant action might not be carried out by the C++ code. 310relevant action might not be carried out by the C++ code.
239 311
240I<< When in doubt, return a false value (preferably C<()>). >> 312I<< When in doubt, return a false value (preferably C<()>). >>
241 313
242=over 4 314=over 4
243 315
244=item on_init $term 316=item on_init $term
245 317
246Called after a new terminal object has been initialized, but before 318Called after a new terminal object has been initialized, but before
247windows 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
248call or deliver senseless data, as terminal size and other characteristics 320call or deliver senseless data, as terminal size and other characteristics
249have not yet been determined. You can safely query and change resources, 321have not yet been determined. You can safely query and change resources
250though. 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.
251 335
252=item on_reset $term 336=item on_reset $term
253 337
254Called 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
255control 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
256variables. 340variables.
257 341
258=item on_start $term 342=item on_child_start $term, $pid
259 343
260Called at the very end of initialisation of a new terminal, just before 344Called just after the child process has been C<fork>ed.
261returning 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>.
262 350
263=item on_sel_make $term, $eventtime 351=item on_sel_make $term, $eventtime
264 352
265Called 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
266selection 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
359 447
360Called whenever the user presses a key combination that has a 448Called whenever the user presses a key combination that has a
361C<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>
362resource in the @@RXVT_NAME@@(1) manpage). 450resource in the @@RXVT_NAME@@(1) manpage).
363 451
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
364=item on_focus_in $term 458=item on_focus_in $term
365 459
366Called whenever the window gets the keyboard focus, before rxvt-unicode 460Called whenever the window gets the keyboard focus, before rxvt-unicode
367does focus in processing. 461does focus in processing.
368 462
369=item on_focus_out $term 463=item on_focus_out $term
370 464
371Called wheneever the window loses keyboard focus, before rxvt-unicode does 465Called wheneever the window loses keyboard focus, before rxvt-unicode does
372focus out processing. 466focus out processing.
467
468=item on_configure_notify $term, $event
373 469
374=item on_key_press $term, $event, $keysym, $octets 470=item on_key_press $term, $event, $keysym, $octets
375 471
376=item on_key_release $term, $event, $keysym 472=item on_key_release $term, $event, $keysym
377 473
394 490
395C<on_key_press> additionally receives the string rxvt-unicode would 491C<on_key_press> additionally receives the string rxvt-unicode would
396output, if any, in locale-specific encoding. 492output, if any, in locale-specific encoding.
397 493
398subwindow. 494subwindow.
495
496=item on_client_message $term, $event
497
498=item on_wm_protocols $term, $event
499
500=item on_wm_delete_window $term, $event
501
502Called when various types of ClientMessage events are received (all with
503format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
399 504
400=back 505=back
401 506
402=cut 507=cut
403 508
409use Scalar::Util (); 514use Scalar::Util ();
410use List::Util (); 515use List::Util ();
411 516
412our $VERSION = 1; 517our $VERSION = 1;
413our $TERM; 518our $TERM;
519our @TERM_INIT;
520our @TERM_EXT;
414our @HOOKNAME; 521our @HOOKNAME;
415our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 522our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
416our %OPTION; 523our %OPTION;
417 524
418our $LIBDIR; 525our $LIBDIR;
440=item $urxvt::TERM 547=item $urxvt::TERM
441 548
442The current terminal. This variable stores the current C<urxvt::term> 549The current terminal. This variable stores the current C<urxvt::term>
443object, whenever a callback/hook is executing. 550object, whenever a callback/hook is executing.
444 551
552=item @urxvt::TERM_INIT
553
554All coderefs in this array will be called as methods of the next newly
555created C<urxvt::term> object (during the C<on_init> phase). The array
556gets cleared before the codereferences that were in it are being executed,
557so coderefs can push themselves onto it again if they so desire.
558
559This complements to the perl-eval commandline option, but gets executed
560first.
561
562=item @urxvt::TERM_EXT
563
564Works similar to C<@TERM_INIT>, but contains perl package/class names, which
565get registered as normal extensions after calling the hooks in C<@TERM_INIT>
566but before other extensions. Gets cleared just like C<@TERM_INIT>.
567
445=back 568=back
446 569
447=head2 Functions in the C<urxvt> Package 570=head2 Functions in the C<urxvt> Package
448 571
449=over 4 572=over 4
463Using this function has the advantage that its output ends up in the 586Using this function has the advantage that its output ends up in the
464correct place, e.g. on stderr of the connecting urxvtc client. 587correct place, e.g. on stderr of the connecting urxvtc client.
465 588
466Messages have a size limit of 1023 bytes currently. 589Messages have a size limit of 1023 bytes currently.
467 590
468=item $is_safe = urxvt::safe
469
470Returns true when it is safe to do potentially unsafe things, such as
471evaluating perl code specified by the user. This is true when urxvt was
472started setuid or setgid.
473
474=item $time = urxvt::NOW 591=item $time = urxvt::NOW
475 592
476Returns the "current time" (as per the event loop). 593Returns the "current time" (as per the event loop).
477 594
478=item urxvt::CurrentTime 595=item urxvt::CurrentTime
479 596
480=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 597=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
481Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 598Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
482Button4Mask, Button5Mask, AnyModifier 599Button4Mask, Button5Mask, AnyModifier
600
601=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
602ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
603PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
604Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
605KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
606ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
607FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
608
609=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
610EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
611GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
612UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
613ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
614CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
615SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
483 616
484Various constants for use in X calls and event processing. 617Various constants for use in X calls and event processing.
485 618
486=back 619=back
487 620
538=back 671=back
539 672
540=cut 673=cut
541 674
542BEGIN { 675BEGIN {
543 urxvt->bootstrap;
544
545 # overwrite perl's warn 676 # overwrite perl's warn
546 *CORE::GLOBAL::warn = sub { 677 *CORE::GLOBAL::warn = sub {
547 my $msg = join "", @_; 678 my $msg = join "", @_;
548 $msg .= "\n" 679 $msg .= "\n"
549 unless $msg =~ /\n$/; 680 unless $msg =~ /\n$/;
550 urxvt::warn ($msg); 681 urxvt::warn ($msg);
551 }; 682 };
552
553 # %ENV is the original startup environment
554 delete $ENV{IFS};
555 delete $ENV{CDPATH};
556 delete $ENV{BASH_ENV};
557 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
558} 683}
559 684
560my @hook_count;
561my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 685my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
562 686
563sub verbose { 687sub verbose {
564 my ($level, $msg) = @_; 688 my ($level, $msg) = @_;
565 warn "$msg\n" if $level <= $verbosity; 689 warn "$msg\n" if $level <= $verbosity;
566} 690}
567 691
568my $extension_pkg = "extension0000";
569my %extension_pkg; 692my %extension_pkg;
570 693
571# load a single script into its own package, once only 694# load a single script into its own package, once only
572sub extension_package($) { 695sub extension_package($) {
573 my ($path) = @_; 696 my ($path) = @_;
574 697
575 $extension_pkg{$path} ||= do { 698 $extension_pkg{$path} ||= do {
576 my $pkg = "urxvt::" . ($extension_pkg++); 699 $path =~ /([^\/\\]+)$/;
700 my $pkg = $1;
701 $pkg =~ s/[^[:word:]]/_/g;
702 $pkg = "urxvt::ext::$pkg";
577 703
578 verbose 3, "loading extension '$path' into package '$pkg'"; 704 verbose 3, "loading extension '$path' into package '$pkg'";
579 705
580 open my $fh, "<:raw", $path 706 open my $fh, "<:raw", $path
581 or die "$path: $!"; 707 or die "$path: $!";
582 708
583 my $source = untaint 709 my $source =
584 "package $pkg; use strict; use utf8;\n" 710 "package $pkg; use strict; use utf8;\n"
585 . "use base urxvt::term::extension::;\n"
586 . "#line 1 \"$path\"\n{\n" 711 . "#line 1 \"$path\"\n{\n"
587 . (do { local $/; <$fh> }) 712 . (do { local $/; <$fh> })
588 . "\n};\n1"; 713 . "\n};\n1";
589 714
590 eval $source 715 eval $source
604 if ($htype == 0) { # INIT 729 if ($htype == 0) { # INIT
605 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 730 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
606 731
607 my %ext_arg; 732 my %ext_arg;
608 733
734 {
735 my @init = @TERM_INIT;
736 @TERM_INIT = ();
737 $_->($TERM) for @init;
738 my @pkg = @TERM_EXT;
739 @TERM_EXT = ();
740 $TERM->register_package ($_) for @pkg;
741 }
742
609 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 743 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
610 if ($_ eq "default") { 744 if ($_ eq "default") {
611 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 745 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
612 } elsif (/^-(.*)$/) { 746 } elsif (/^-(.*)$/) {
613 delete $ext_arg{$1}; 747 delete $ext_arg{$1};
614 } elsif (/^([^<]+)<(.*)>$/) { 748 } elsif (/^([^<]+)<(.*)>$/) {
639 if $verbosity >= 10; 773 if $verbosity >= 10;
640 774
641 keys %$cb; 775 keys %$cb;
642 776
643 while (my ($pkg, $cb) = each %$cb) { 777 while (my ($pkg, $cb) = each %$cb) {
644 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 778 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
645 and last; 779 $retval ||= $retval_;
646 780
647 if ($@) { 781 if ($@) {
648 $TERM->ungrab; # better to lose the grab than the session 782 $TERM->ungrab; # better to lose the grab than the session
649 warn $@; 783 warn $@;
650 } 784 }
653 verbose 11, "$HOOKNAME[$htype] returning <$retval>" 787 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
654 if $verbosity >= 11; 788 if $verbosity >= 11;
655 } 789 }
656 790
657 if ($htype == 1) { # DESTROY 791 if ($htype == 1) { # DESTROY
658 if (my $hook = delete $TERM->{_hook}) {
659 for my $htype (0..$#$hook) {
660 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
661 or set_should_invoke $htype, 0;
662 }
663 }
664
665 # clear package objects 792 # clear package objects
666 %$_ = () for values %{ $TERM->{_pkg} }; 793 %$_ = () for values %{ $TERM->{_pkg} };
667 794
668 # clear package 795 # clear package
669 %$TERM = (); 796 %$TERM = ();
670 } 797 }
671 798
672 $retval 799 $retval
673}
674
675sub exec_async(@) {
676 my $pid = fork;
677
678 return
679 if !defined $pid or $pid;
680
681 %ENV = %{ $TERM->env };
682
683 exec @_;
684 _exit 255;
685} 800}
686 801
687# urxvt::term::extension 802# urxvt::term::extension
688 803
689package urxvt::term::extension; 804package urxvt::term::extension;
695 while (my ($name, $cb) = each %hook) { 810 while (my ($name, $cb) = each %hook) {
696 my $htype = $HOOKTYPE{uc $name}; 811 my $htype = $HOOKTYPE{uc $name};
697 defined $htype 812 defined $htype
698 or Carp::croak "unsupported hook type '$name'"; 813 or Carp::croak "unsupported hook type '$name'";
699 814
815 $self->set_should_invoke ($htype, +1)
700 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 816 unless exists $self->{term}{_hook}[$htype]{$pkg};
701 $hook_count[$htype]++
702 or urxvt::set_should_invoke $htype, 1;
703 }
704 817
705 $self->{term}{_hook}[$htype]{$pkg} = $cb; 818 $self->{term}{_hook}[$htype]{$pkg} = $cb;
706 } 819 }
707} 820}
708 821
713 for my $name (@hook) { 826 for my $name (@hook) {
714 my $htype = $HOOKTYPE{uc $name}; 827 my $htype = $HOOKTYPE{uc $name};
715 defined $htype 828 defined $htype
716 or Carp::croak "unsupported hook type '$name'"; 829 or Carp::croak "unsupported hook type '$name'";
717 830
831 $self->set_should_invoke ($htype, -1)
718 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 832 if delete $self->{term}{_hook}[$htype]{$pkg};
719 --$hook_count[$htype]
720 or urxvt::set_should_invoke $htype, 0;
721 }
722 } 833 }
723} 834}
724 835
725our $AUTOLOAD; 836our $AUTOLOAD;
726 837
832# find on_xxx subs in the package and register them 943# find on_xxx subs in the package and register them
833# as hooks 944# as hooks
834sub register_package { 945sub register_package {
835 my ($self, $pkg, $argv) = @_; 946 my ($self, $pkg, $argv) = @_;
836 947
948 no strict 'refs';
949
950 urxvt::verbose 6, "register package $pkg to $self";
951
952 @{"$pkg\::ISA"} = urxvt::term::extension::;
953
837 my $proxy = bless { 954 my $proxy = bless {
838 _pkg => $pkg, 955 _pkg => $pkg,
839 argv => $argv, 956 argv => $argv,
840 }, $pkg; 957 }, $pkg;
841 Scalar::Util::weaken ($proxy->{term} = $self); 958 Scalar::Util::weaken ($proxy->{term} = $self);
872 989
873Destroy the terminal object (close the window, free resources 990Destroy the terminal object (close the window, free resources
874etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 991etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
875watchers (timers, io watchers) are still active. 992watchers (timers, io watchers) are still active.
876 993
994=item $term->exec_async ($cmd[, @args])
995
996Works like the combination of the C<fork>/C<exec> builtins, which executes
997("starts") programs in the background. This function takes care of setting
998the user environment before exec'ing the command (e.g. C<PATH>) and should
999be preferred over explicit calls to C<exec> or C<system>.
1000
1001Returns the pid of the subprocess or C<undef> on error.
1002
1003=cut
1004
1005sub exec_async {
1006 my $self = shift;
1007
1008 my $pid = fork;
1009
1010 return $pid
1011 if !defined $pid or $pid;
1012
1013 %ENV = %{ $self->env };
1014
1015 exec @_;
1016 urxvt::_exit 255;
1017}
1018
877=item $isset = $term->option ($optval[, $set]) 1019=item $isset = $term->option ($optval[, $set])
878 1020
879Returns true if the option specified by C<$optval> is enabled, and 1021Returns true if the option specified by C<$optval> is enabled, and
880optionally change it. All option values are stored by name in the hash 1022optionally change it. All option values are stored by name in the hash
881C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. 1023C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
883Here is a a likely non-exhaustive list of option names, please see the 1025Here is a a likely non-exhaustive list of option names, please see the
884source file F</src/optinc.h> to see the actual list: 1026source file F</src/optinc.h> to see the actual list:
885 1027
886 borderLess console cursorBlink cursorUnderline hold iconic insecure 1028 borderLess console cursorBlink cursorUnderline hold iconic insecure
887 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1029 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
888 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1030 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
889 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1031 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
890 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1032 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
891 tripleclickwords utmpInhibit visualBell 1033 transparent tripleclickwords utmpInhibit visualBell
892 1034
893=item $value = $term->resource ($name[, $newval]) 1035=item $value = $term->resource ($name[, $newval])
894 1036
895Returns the current resource value associated with a given name and 1037Returns the current resource value associated with a given name and
896optionally sets a new value. Setting values is most useful in the C<init> 1038optionally sets a new value. Setting values is most useful in the C<init>
913 1055
914 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1056 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
915 borderLess color cursorBlink cursorUnderline cutchars delete_key 1057 borderLess color cursorBlink cursorUnderline cutchars delete_key
916 display_name embed ext_bwidth fade font geometry hold iconName 1058 display_name embed ext_bwidth fade font geometry hold iconName
917 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1059 imFont imLocale inputMethod insecure int_bwidth intensityStyles
918 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1060 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
919 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1061 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
920 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1062 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
921 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1063 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
922 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1064 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
923 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1065 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
924 shade term_name title transparent transparent_all tripleclickwords 1066 secondaryScreen secondaryScroll selectstyle shade term_name title
925 utmpInhibit visualBell 1067 transient_for transparent transparent_all tripleclickwords utmpInhibit
1068 visualBell
926 1069
927=cut 1070=cut
928 1071
929sub resource($$;$) { 1072sub resource($$;$) {
930 my ($self, $name) = (shift, shift); 1073 my ($self, $name) = (shift, shift);
1131 1274
1132=item $windowid = $term->vt 1275=item $windowid = $term->vt
1133 1276
1134Return the window id of the terminal window. 1277Return the window id of the terminal window.
1135 1278
1279=item $term->vt_emask_add ($x_event_mask)
1280
1281Adds the specified events to the vt event mask. Useful e.g. when you want
1282to receive pointer events all the times:
1283
1284 $term->vt_emask_add (urxvt::PointerMotionMask);
1285
1136=item $window_width = $term->width 1286=item $window_width = $term->width
1137 1287
1138=item $window_height = $term->height 1288=item $window_height = $term->height
1139 1289
1140=item $font_width = $term->fwidth 1290=item $font_width = $term->fwidth
1153 1303
1154=item $max_scrollback = $term->saveLines 1304=item $max_scrollback = $term->saveLines
1155 1305
1156=item $nrow_plus_saveLines = $term->total_rows 1306=item $nrow_plus_saveLines = $term->total_rows
1157 1307
1158=item $lines_in_scrollback = $term->nsaved 1308=item $topmost_scrollback_row = $term->top_row
1159 1309
1160Return various integers describing terminal characteristics. 1310Return various integers describing terminal characteristics.
1161 1311
1162=item $x_display = $term->display_id 1312=item $x_display = $term->display_id
1163 1313
1191Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1341Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1192AltGr), the meta key (often Alt) and the num lock key, if applicable. 1342AltGr), the meta key (often Alt) and the num lock key, if applicable.
1193 1343
1194=item $view_start = $term->view_start ([$newvalue]) 1344=item $view_start = $term->view_start ([$newvalue])
1195 1345
1196Returns the negative row number of the topmost line. Minimum value is 1346Returns the row number of the topmost displayed line. Maximum value is
1197C<0>, which displays the normal terminal contents. Larger values scroll 1347C<0>, which displays the normal terminal contents. Lower values scroll
1198this many lines into the scrollback buffer. 1348this many lines into the scrollback buffer.
1199 1349
1200=item $term->want_refresh 1350=item $term->want_refresh
1201 1351
1202Requests a screen refresh. At the next opportunity, rxvt-unicode will 1352Requests a screen refresh. At the next opportunity, rxvt-unicode will
1515 my $env = $self->{term}->env; 1665 my $env = $self->{term}->env;
1516 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. 1666 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1517 delete $env->{LC_ALL}; 1667 delete $env->{LC_ALL};
1518 $env->{LC_CTYPE} = $self->{term}->locale; 1668 $env->{LC_CTYPE} = $self->{term}->locale;
1519 1669
1520 urxvt::term->new ($env, $self->{term}->resource ("name"), 1670 urxvt::term->new ($env, "popup",
1521 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1671 "--perl-lib" => "", "--perl-ext-common" => "",
1672 "-pty-fd" => -1, "-sl" => 0,
1673 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1522 "--transient-for" => $self->{term}->parent, 1674 "--transient-for" => $self->{term}->parent,
1523 "-display" => $self->{term}->display_id, 1675 "-display" => $self->{term}->display_id,
1524 "-pe" => "urxvt-popup") 1676 "-pe" => "urxvt-popup")
1525 or die "unable to create popup window\n"; 1677 or die "unable to create popup window\n";
1526} 1678}
1531 delete $self->{term}{_destroy}{$self}; 1683 delete $self->{term}{_destroy}{$self};
1532 $self->{term}->ungrab; 1684 $self->{term}->ungrab;
1533} 1685}
1534 1686
1535=back 1687=back
1688
1689=cut
1690
1691package urxvt::watcher;
1692
1693@urxvt::timer::ISA = __PACKAGE__;
1694@urxvt::iow::ISA = __PACKAGE__;
1695@urxvt::pw::ISA = __PACKAGE__;
1696@urxvt::iw::ISA = __PACKAGE__;
1536 1697
1537=head2 The C<urxvt::timer> Class 1698=head2 The C<urxvt::timer> Class
1538 1699
1539This class implements timer watchers/events. Time is represented as a 1700This class implements timer watchers/events. Time is represented as a
1540fractional number of seconds since the epoch. Example: 1701fractional number of seconds since the epoch. Example:
1578Start the timer. 1739Start the timer.
1579 1740
1580=item $timer = $timer->start ($tstamp) 1741=item $timer = $timer->start ($tstamp)
1581 1742
1582Set the event trigger time to C<$tstamp> and start the timer. 1743Set the event trigger time to C<$tstamp> and start the timer.
1744
1745=item $timer = $timer->after ($delay)
1746
1747Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1583 1748
1584=item $timer = $timer->stop 1749=item $timer = $timer->stop
1585 1750
1586Stop the timer. 1751Stop the timer.
1587 1752
1634 1799
1635Stop watching for events on the given filehandle. 1800Stop watching for events on the given filehandle.
1636 1801
1637=back 1802=back
1638 1803
1804=head2 The C<urxvt::iw> Class
1805
1806This class implements idle watchers, that get called automatically when
1807the process is idle. They should return as fast as possible, after doing
1808some useful work.
1809
1810=over 4
1811
1812=item $iw = new urxvt::iw
1813
1814Create a new idle watcher object in stopped state.
1815
1816=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1817
1818Set the callback to be called when the watcher triggers.
1819
1820=item $timer = $timer->start
1821
1822Start the watcher.
1823
1824=item $timer = $timer->stop
1825
1826Stop the watcher.
1827
1828=back
1829
1830=head2 The C<urxvt::pw> Class
1831
1832This class implements process watchers. They create an event whenever a
1833process exits, after which they stop automatically.
1834
1835 my $pid = fork;
1836 ...
1837 $term->{pw} = urxvt::pw
1838 ->new
1839 ->start ($pid)
1840 ->cb (sub {
1841 my ($pw, $exit_status) = @_;
1842 ...
1843 });
1844
1845=over 4
1846
1847=item $pw = new urxvt::pw
1848
1849Create a new process watcher in stopped state.
1850
1851=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1852
1853Set the callback to be called when the timer triggers.
1854
1855=item $pw = $timer->start ($pid)
1856
1857Tells the wqtcher to start watching for process C<$pid>.
1858
1859=item $pw = $pw->stop
1860
1861Stop the watcher.
1862
1863=back
1864
1639=head1 ENVIRONMENT 1865=head1 ENVIRONMENT
1640 1866
1641=head2 URXVT_PERL_VERBOSITY 1867=head2 URXVT_PERL_VERBOSITY
1642 1868
1643This variable controls the verbosity level of the perl extension. Higher 1869This variable controls the verbosity level of the perl extension. Higher

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