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Revision 1.90 by root, Thu Jan 12 12:15:10 2006 UTC vs.
Revision 1.115 by root, Fri Jan 20 15:57:21 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.
166
167=item tabbed
168
169This transforms the terminal into a tabbar with additional terminals, that
170is, it implements what is commonly refered to as "tabbed terminal". The topmost line
171displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
172button per tab.
173
174Clicking a button will activate that tab. Pressing Shift-Left and
175Shift-Right will switch to the tab left or right of the current one.
133 176
134=item mark-urls 177=item mark-urls
135 178
136Uses per-line display filtering (C<on_line_update>) to underline urls and 179Uses per-line display filtering (C<on_line_update>) to underline urls and
137make them clickable. When middle-clicked, the program specified in the 180make them clickable. When middle-clicked, the program specified in the
138resource C<urlLauncher> (default C<x-www-browser>) will be started with 181resource C<urlLauncher> (default C<x-www-browser>) will be started with
139the URL as first argument. 182the URL as first argument.
140 183
184=item automove-background
185
186This is basically a one-line extension that dynamically changes the background pixmap offset
187to the window position, in effect creating the same effect as pseudo transparency with
188a custom pixmap. No scaling is supported in this mode. Exmaple:
189
190 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
191
141=item block-graphics-to-ascii 192=item block-graphics-to-ascii
142 193
143A not very useful example of filtering all text output to the terminal, 194A not very useful example of filtering all text output to the terminal,
144by replacing all line-drawing characters (U+2500 .. U+259F) by a 195by replacing all line-drawing characters (U+2500 .. U+259F) by a
145similar-looking ascii character. 196similar-looking ascii character.
151=item example-refresh-hooks 202=item example-refresh-hooks
152 203
153Displays a very simple digital clock in the upper right corner of the 204Displays a very simple digital clock in the upper right corner of the
154window. Illustrates overwriting the refresh callbacks to create your own 205window. Illustrates overwriting the refresh callbacks to create your own
155overlays or changes. 206overlays or changes.
207
208=item selection-pastebin
209
210This is a little rarely useful extension that Uploads the selection as
211textfile to a remote site (or does other things). (The implementation is
212not currently secure for use in a multiuser environment as it writes to
213F</tmp> directly.).
214
215It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
216i.e.
217
218 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
219
220Pressing this combination runs a command with C<%> replaced by the name of
221the textfile. This command can be set via a resource:
222
223 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
224
225And the default is likely not useful to anybody but the few people around
226here :)
227
228The name of the textfile is the hex encoded md5 sum of the selection, so
229the same content should lead to the same filename.
230
231After a successful upload the selection will be replaced by the text given
232in the C<selection-pastebin-url> resource (again, the % is the placeholder
233for the filename):
234
235 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
156 236
157=back 237=back
158 238
159=head1 API DOCUMENTATION 239=head1 API DOCUMENTATION
160 240
233called whenever the relevant event happens. 313called whenever the relevant event happens.
234 314
235The first argument passed to them is an extension oject as described in 315The first argument passed to them is an extension oject as described in
236the in the C<Extension Objects> section. 316the in the C<Extension Objects> section.
237 317
238B<All> of these hooks must return a boolean value. If it is true, then the 318B<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 319hooks 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. 320relevant action might not be carried out by the C++ code.
241 321
242I<< When in doubt, return a false value (preferably C<()>). >> 322I<< When in doubt, return a false value (preferably C<()>). >>
243 323
244=over 4 324=over 4
245 325
246=item on_init $term 326=item on_init $term
247 327
248Called after a new terminal object has been initialized, but before 328Called after a new terminal object has been initialized, but before
249windows are created or the command gets run. Most methods are unsafe to 329windows are created or the command gets run. Most methods are unsafe to
250call or deliver senseless data, as terminal size and other characteristics 330call or deliver senseless data, as terminal size and other characteristics
251have not yet been determined. You can safely query and change resources, 331have not yet been determined. You can safely query and change resources
252though. 332and options, though. For many purposes the C<on_start> hook is a better
333place.
334
335=item on_start $term
336
337Called at the very end of initialisation of a new terminal, just before
338trying to map (display) the toplevel and returning to the mainloop.
339
340=item on_destroy $term
341
342Called whenever something tries to destroy terminal, before doing anything
343yet. If this hook returns true, then destruction is skipped, but this is
344rarely a good idea.
253 345
254=item on_reset $term 346=item on_reset $term
255 347
256Called after the screen is "reset" for any reason, such as resizing or 348Called 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 349control sequences. Here is where you can react on changes to size-related
258variables. 350variables.
259 351
260=item on_start $term 352=item on_child_start $term, $pid
261 353
262Called at the very end of initialisation of a new terminal, just before 354Called just after the child process has been C<fork>ed.
263returning to the mainloop. 355
356=item on_child_exit $term, $status
357
358Called just after the child process has exited. C<$status> is the status
359from C<waitpid>.
264 360
265=item on_sel_make $term, $eventtime 361=item on_sel_make $term, $eventtime
266 362
267Called whenever a selection has been made by the user, but before the 363Called 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 364selection text is copied, so changes to the beginning, end or type of the
361 457
362Called whenever the user presses a key combination that has a 458Called whenever the user presses a key combination that has a
363C<perl:string> action bound to it (see description of the B<keysym> 459C<perl:string> action bound to it (see description of the B<keysym>
364resource in the @@RXVT_NAME@@(1) manpage). 460resource in the @@RXVT_NAME@@(1) manpage).
365 461
462=item on_x_event $term, $event
463
464Called on every X event received on the vt window (and possibly other
465windows). Should only be used as a last resort. Most event structure
466members are not passed.
467
366=item on_focus_in $term 468=item on_focus_in $term
367 469
368Called whenever the window gets the keyboard focus, before rxvt-unicode 470Called whenever the window gets the keyboard focus, before rxvt-unicode
369does focus in processing. 471does focus in processing.
370 472
371=item on_focus_out $term 473=item on_focus_out $term
372 474
373Called wheneever the window loses keyboard focus, before rxvt-unicode does 475Called wheneever the window loses keyboard focus, before rxvt-unicode does
374focus out processing. 476focus out processing.
477
478=item on_configure_notify $term, $event
375 479
376=item on_key_press $term, $event, $keysym, $octets 480=item on_key_press $term, $event, $keysym, $octets
377 481
378=item on_key_release $term, $event, $keysym 482=item on_key_release $term, $event, $keysym
379 483
396 500
397C<on_key_press> additionally receives the string rxvt-unicode would 501C<on_key_press> additionally receives the string rxvt-unicode would
398output, if any, in locale-specific encoding. 502output, if any, in locale-specific encoding.
399 503
400subwindow. 504subwindow.
505
506=item on_client_message $term, $event
507
508=item on_wm_protocols $term, $event
509
510=item on_wm_delete_window $term, $event
511
512Called when various types of ClientMessage events are received (all with
513format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
401 514
402=back 515=back
403 516
404=cut 517=cut
405 518
411use Scalar::Util (); 524use Scalar::Util ();
412use List::Util (); 525use List::Util ();
413 526
414our $VERSION = 1; 527our $VERSION = 1;
415our $TERM; 528our $TERM;
529our @TERM_INIT;
530our @TERM_EXT;
416our @HOOKNAME; 531our @HOOKNAME;
417our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 532our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
418our %OPTION; 533our %OPTION;
419 534
420our $LIBDIR; 535our $LIBDIR;
442=item $urxvt::TERM 557=item $urxvt::TERM
443 558
444The current terminal. This variable stores the current C<urxvt::term> 559The current terminal. This variable stores the current C<urxvt::term>
445object, whenever a callback/hook is executing. 560object, whenever a callback/hook is executing.
446 561
562=item @urxvt::TERM_INIT
563
564All coderefs in this array will be called as methods of the next newly
565created C<urxvt::term> object (during the C<on_init> phase). The array
566gets cleared before the codereferences that were in it are being executed,
567so coderefs can push themselves onto it again if they so desire.
568
569This complements to the perl-eval commandline option, but gets executed
570first.
571
572=item @urxvt::TERM_EXT
573
574Works similar to C<@TERM_INIT>, but contains perl package/class names, which
575get registered as normal extensions after calling the hooks in C<@TERM_INIT>
576but before other extensions. Gets cleared just like C<@TERM_INIT>.
577
447=back 578=back
448 579
449=head2 Functions in the C<urxvt> Package 580=head2 Functions in the C<urxvt> Package
450 581
451=over 4 582=over 4
465Using this function has the advantage that its output ends up in the 596Using this function has the advantage that its output ends up in the
466correct place, e.g. on stderr of the connecting urxvtc client. 597correct place, e.g. on stderr of the connecting urxvtc client.
467 598
468Messages have a size limit of 1023 bytes currently. 599Messages have a size limit of 1023 bytes currently.
469 600
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 601=item $time = urxvt::NOW
477 602
478Returns the "current time" (as per the event loop). 603Returns the "current time" (as per the event loop).
479 604
480=item urxvt::CurrentTime 605=item urxvt::CurrentTime
481 606
482=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 607=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
483Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 608Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
484Button4Mask, Button5Mask, AnyModifier 609Button4Mask, Button5Mask, AnyModifier
610
611=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
612ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
613PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
614Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
615KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
616ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
617FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
618
619=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
620EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
621GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
622UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
623ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
624CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
625SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
485 626
486Various constants for use in X calls and event processing. 627Various constants for use in X calls and event processing.
487 628
488=back 629=back
489 630
540=back 681=back
541 682
542=cut 683=cut
543 684
544BEGIN { 685BEGIN {
545 urxvt->bootstrap;
546
547 # overwrite perl's warn 686 # overwrite perl's warn
548 *CORE::GLOBAL::warn = sub { 687 *CORE::GLOBAL::warn = sub {
549 my $msg = join "", @_; 688 my $msg = join "", @_;
550 $msg .= "\n" 689 $msg .= "\n"
551 unless $msg =~ /\n$/; 690 unless $msg =~ /\n$/;
552 urxvt::warn ($msg); 691 urxvt::warn ($msg);
553 }; 692 };
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} 693}
561 694
562my @hook_count;
563my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 695my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
564 696
565sub verbose { 697sub verbose {
566 my ($level, $msg) = @_; 698 my ($level, $msg) = @_;
567 warn "$msg\n" if $level <= $verbosity; 699 warn "$msg\n" if $level <= $verbosity;
568} 700}
569 701
570my $extension_pkg = "extension0000";
571my %extension_pkg; 702my %extension_pkg;
572 703
573# load a single script into its own package, once only 704# load a single script into its own package, once only
574sub extension_package($) { 705sub extension_package($) {
575 my ($path) = @_; 706 my ($path) = @_;
576 707
577 $extension_pkg{$path} ||= do { 708 $extension_pkg{$path} ||= do {
578 my $pkg = "urxvt::" . ($extension_pkg++); 709 $path =~ /([^\/\\]+)$/;
710 my $pkg = $1;
711 $pkg =~ s/[^[:word:]]/_/g;
712 $pkg = "urxvt::ext::$pkg";
579 713
580 verbose 3, "loading extension '$path' into package '$pkg'"; 714 verbose 3, "loading extension '$path' into package '$pkg'";
581 715
582 open my $fh, "<:raw", $path 716 open my $fh, "<:raw", $path
583 or die "$path: $!"; 717 or die "$path: $!";
584 718
585 my $source = untaint 719 my $source =
586 "package $pkg; use strict; use utf8;\n" 720 "package $pkg; use strict; use utf8;\n"
587 . "use base urxvt::term::extension::;\n"
588 . "#line 1 \"$path\"\n{\n" 721 . "#line 1 \"$path\"\n{\n"
589 . (do { local $/; <$fh> }) 722 . (do { local $/; <$fh> })
590 . "\n};\n1"; 723 . "\n};\n1";
591 724
592 eval $source 725 eval $source
606 if ($htype == 0) { # INIT 739 if ($htype == 0) { # INIT
607 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 740 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
608 741
609 my %ext_arg; 742 my %ext_arg;
610 743
744 {
745 my @init = @TERM_INIT;
746 @TERM_INIT = ();
747 $_->($TERM) for @init;
748 my @pkg = @TERM_EXT;
749 @TERM_EXT = ();
750 $TERM->register_package ($_) for @pkg;
751 }
752
611 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 753 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
612 if ($_ eq "default") { 754 if ($_ eq "default") {
613 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 755 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
614 } elsif (/^-(.*)$/) { 756 } elsif (/^-(.*)$/) {
615 delete $ext_arg{$1}; 757 delete $ext_arg{$1};
616 } elsif (/^([^<]+)<(.*)>$/) { 758 } elsif (/^([^<]+)<(.*)>$/) {
641 if $verbosity >= 10; 783 if $verbosity >= 10;
642 784
643 keys %$cb; 785 keys %$cb;
644 786
645 while (my ($pkg, $cb) = each %$cb) { 787 while (my ($pkg, $cb) = each %$cb) {
646 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 788 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
647 and last; 789 $retval ||= $retval_;
648 790
649 if ($@) { 791 if ($@) {
650 $TERM->ungrab; # better to lose the grab than the session 792 $TERM->ungrab; # better to lose the grab than the session
651 warn $@; 793 warn $@;
652 } 794 }
655 verbose 11, "$HOOKNAME[$htype] returning <$retval>" 797 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
656 if $verbosity >= 11; 798 if $verbosity >= 11;
657 } 799 }
658 800
659 if ($htype == 1) { # DESTROY 801 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 $htype, 0;
664 }
665 }
666
667 # clear package objects 802 # clear package objects
668 %$_ = () for values %{ $TERM->{_pkg} }; 803 %$_ = () for values %{ $TERM->{_pkg} };
669 804
670 # clear package 805 # clear package
671 %$TERM = (); 806 %$TERM = ();
672 } 807 }
673 808
674 $retval 809 $retval
675}
676
677sub exec_async(@) {
678 my $pid = fork;
679
680 return
681 if !defined $pid or $pid;
682
683 %ENV = %{ $TERM->env };
684
685 exec @_;
686 _exit 255;
687} 810}
688 811
689# urxvt::term::extension 812# urxvt::term::extension
690 813
691package urxvt::term::extension; 814package urxvt::term::extension;
697 while (my ($name, $cb) = each %hook) { 820 while (my ($name, $cb) = each %hook) {
698 my $htype = $HOOKTYPE{uc $name}; 821 my $htype = $HOOKTYPE{uc $name};
699 defined $htype 822 defined $htype
700 or Carp::croak "unsupported hook type '$name'"; 823 or Carp::croak "unsupported hook type '$name'";
701 824
825 $self->set_should_invoke ($htype, +1)
702 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 826 unless exists $self->{term}{_hook}[$htype]{$pkg};
703 $hook_count[$htype]++
704 or urxvt::set_should_invoke $htype, 1;
705 }
706 827
707 $self->{term}{_hook}[$htype]{$pkg} = $cb; 828 $self->{term}{_hook}[$htype]{$pkg} = $cb;
708 } 829 }
709} 830}
710 831
715 for my $name (@hook) { 836 for my $name (@hook) {
716 my $htype = $HOOKTYPE{uc $name}; 837 my $htype = $HOOKTYPE{uc $name};
717 defined $htype 838 defined $htype
718 or Carp::croak "unsupported hook type '$name'"; 839 or Carp::croak "unsupported hook type '$name'";
719 840
841 $self->set_should_invoke ($htype, -1)
720 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 842 if delete $self->{term}{_hook}[$htype]{$pkg};
721 --$hook_count[$htype]
722 or urxvt::set_should_invoke $htype, 0;
723 }
724 } 843 }
725} 844}
726 845
727our $AUTOLOAD; 846our $AUTOLOAD;
728 847
834# find on_xxx subs in the package and register them 953# find on_xxx subs in the package and register them
835# as hooks 954# as hooks
836sub register_package { 955sub register_package {
837 my ($self, $pkg, $argv) = @_; 956 my ($self, $pkg, $argv) = @_;
838 957
958 no strict 'refs';
959
960 urxvt::verbose 6, "register package $pkg to $self";
961
962 @{"$pkg\::ISA"} = urxvt::term::extension::;
963
839 my $proxy = bless { 964 my $proxy = bless {
840 _pkg => $pkg, 965 _pkg => $pkg,
841 argv => $argv, 966 argv => $argv,
842 }, $pkg; 967 }, $pkg;
843 Scalar::Util::weaken ($proxy->{term} = $self); 968 Scalar::Util::weaken ($proxy->{term} = $self);
874 999
875Destroy the terminal object (close the window, free resources 1000Destroy the terminal object (close the window, free resources
876etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1001etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
877watchers (timers, io watchers) are still active. 1002watchers (timers, io watchers) are still active.
878 1003
1004=item $term->exec_async ($cmd[, @args])
1005
1006Works like the combination of the C<fork>/C<exec> builtins, which executes
1007("starts") programs in the background. This function takes care of setting
1008the user environment before exec'ing the command (e.g. C<PATH>) and should
1009be preferred over explicit calls to C<exec> or C<system>.
1010
1011Returns the pid of the subprocess or C<undef> on error.
1012
1013=cut
1014
1015sub exec_async {
1016 my $self = shift;
1017
1018 my $pid = fork;
1019
1020 return $pid
1021 if !defined $pid or $pid;
1022
1023 %ENV = %{ $self->env };
1024
1025 exec @_;
1026 urxvt::_exit 255;
1027}
1028
879=item $isset = $term->option ($optval[, $set]) 1029=item $isset = $term->option ($optval[, $set])
880 1030
881Returns true if the option specified by C<$optval> is enabled, and 1031Returns true if the option specified by C<$optval> is enabled, and
882optionally change it. All option values are stored by name in the hash 1032optionally 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. 1033C<%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 1035Here is a a likely non-exhaustive list of option names, please see the
886source file F</src/optinc.h> to see the actual list: 1036source file F</src/optinc.h> to see the actual list:
887 1037
888 borderLess console cursorBlink cursorUnderline hold iconic insecure 1038 borderLess console cursorBlink cursorUnderline hold iconic insecure
889 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1039 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
890 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1040 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
891 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1041 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
892 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1042 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
893 tripleclickwords utmpInhibit visualBell 1043 transparent tripleclickwords utmpInhibit visualBell
894 1044
895=item $value = $term->resource ($name[, $newval]) 1045=item $value = $term->resource ($name[, $newval])
896 1046
897Returns the current resource value associated with a given name and 1047Returns the current resource value associated with a given name and
898optionally sets a new value. Setting values is most useful in the C<init> 1048optionally sets a new value. Setting values is most useful in the C<init>
915 1065
916 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1066 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
917 borderLess color cursorBlink cursorUnderline cutchars delete_key 1067 borderLess color cursorBlink cursorUnderline cutchars delete_key
918 display_name embed ext_bwidth fade font geometry hold iconName 1068 display_name embed ext_bwidth fade font geometry hold iconName
919 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1069 imFont imLocale inputMethod insecure int_bwidth intensityStyles
920 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1070 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
921 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1071 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
922 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1072 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
923 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1073 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
924 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1074 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
925 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1075 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
926 shade term_name title transparent transparent_all tripleclickwords 1076 secondaryScreen secondaryScroll selectstyle shade term_name title
927 utmpInhibit visualBell 1077 transient_for transparent transparent_all tripleclickwords utmpInhibit
1078 visualBell
928 1079
929=cut 1080=cut
930 1081
931sub resource($$;$) { 1082sub resource($$;$) {
932 my ($self, $name) = (shift, shift); 1083 my ($self, $name) = (shift, shift);
1133 1284
1134=item $windowid = $term->vt 1285=item $windowid = $term->vt
1135 1286
1136Return the window id of the terminal window. 1287Return the window id of the terminal window.
1137 1288
1289=item $term->vt_emask_add ($x_event_mask)
1290
1291Adds the specified events to the vt event mask. Useful e.g. when you want
1292to receive pointer events all the times:
1293
1294 $term->vt_emask_add (urxvt::PointerMotionMask);
1295
1138=item $window_width = $term->width 1296=item $window_width = $term->width
1139 1297
1140=item $window_height = $term->height 1298=item $window_height = $term->height
1141 1299
1142=item $font_width = $term->fwidth 1300=item $font_width = $term->fwidth
1155 1313
1156=item $max_scrollback = $term->saveLines 1314=item $max_scrollback = $term->saveLines
1157 1315
1158=item $nrow_plus_saveLines = $term->total_rows 1316=item $nrow_plus_saveLines = $term->total_rows
1159 1317
1160=item $lines_in_scrollback = $term->nsaved 1318=item $topmost_scrollback_row = $term->top_row
1161 1319
1162Return various integers describing terminal characteristics. 1320Return various integers describing terminal characteristics.
1163 1321
1164=item $x_display = $term->display_id 1322=item $x_display = $term->display_id
1165 1323
1193Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1351Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1194AltGr), the meta key (often Alt) and the num lock key, if applicable. 1352AltGr), the meta key (often Alt) and the num lock key, if applicable.
1195 1353
1196=item $view_start = $term->view_start ([$newvalue]) 1354=item $view_start = $term->view_start ([$newvalue])
1197 1355
1198Returns the negative row number of the topmost line. Minimum value is 1356Returns the row number of the topmost displayed line. Maximum value is
1199C<0>, which displays the normal terminal contents. Larger values scroll 1357C<0>, which displays the normal terminal contents. Lower values scroll
1200this many lines into the scrollback buffer. 1358this many lines into the scrollback buffer.
1201 1359
1202=item $term->want_refresh 1360=item $term->want_refresh
1203 1361
1204Requests a screen refresh. At the next opportunity, rxvt-unicode will 1362Requests a screen refresh. At the next opportunity, rxvt-unicode will
1517 my $env = $self->{term}->env; 1675 my $env = $self->{term}->env;
1518 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. 1676 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1519 delete $env->{LC_ALL}; 1677 delete $env->{LC_ALL};
1520 $env->{LC_CTYPE} = $self->{term}->locale; 1678 $env->{LC_CTYPE} = $self->{term}->locale;
1521 1679
1522 urxvt::term->new ($env, $self->{term}->resource ("name"), 1680 urxvt::term->new ($env, "popup",
1523 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1681 "--perl-lib" => "", "--perl-ext-common" => "",
1682 "-pty-fd" => -1, "-sl" => 0,
1683 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1524 "--transient-for" => $self->{term}->parent, 1684 "--transient-for" => $self->{term}->parent,
1525 "-display" => $self->{term}->display_id, 1685 "-display" => $self->{term}->display_id,
1526 "-pe" => "urxvt-popup") 1686 "-pe" => "urxvt-popup")
1527 or die "unable to create popup window\n"; 1687 or die "unable to create popup window\n";
1528} 1688}
1533 delete $self->{term}{_destroy}{$self}; 1693 delete $self->{term}{_destroy}{$self};
1534 $self->{term}->ungrab; 1694 $self->{term}->ungrab;
1535} 1695}
1536 1696
1537=back 1697=back
1698
1699=cut
1700
1701package urxvt::watcher;
1702
1703@urxvt::timer::ISA = __PACKAGE__;
1704@urxvt::iow::ISA = __PACKAGE__;
1705@urxvt::pw::ISA = __PACKAGE__;
1706@urxvt::iw::ISA = __PACKAGE__;
1538 1707
1539=head2 The C<urxvt::timer> Class 1708=head2 The C<urxvt::timer> Class
1540 1709
1541This class implements timer watchers/events. Time is represented as a 1710This class implements timer watchers/events. Time is represented as a
1542fractional number of seconds since the epoch. Example: 1711fractional number of seconds since the epoch. Example:
1580Start the timer. 1749Start the timer.
1581 1750
1582=item $timer = $timer->start ($tstamp) 1751=item $timer = $timer->start ($tstamp)
1583 1752
1584Set the event trigger time to C<$tstamp> and start the timer. 1753Set the event trigger time to C<$tstamp> and start the timer.
1754
1755=item $timer = $timer->after ($delay)
1756
1757Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1585 1758
1586=item $timer = $timer->stop 1759=item $timer = $timer->stop
1587 1760
1588Stop the timer. 1761Stop the timer.
1589 1762
1636 1809
1637Stop watching for events on the given filehandle. 1810Stop watching for events on the given filehandle.
1638 1811
1639=back 1812=back
1640 1813
1814=head2 The C<urxvt::iw> Class
1815
1816This class implements idle watchers, that get called automatically when
1817the process is idle. They should return as fast as possible, after doing
1818some useful work.
1819
1820=over 4
1821
1822=item $iw = new urxvt::iw
1823
1824Create a new idle watcher object in stopped state.
1825
1826=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1827
1828Set the callback to be called when the watcher triggers.
1829
1830=item $timer = $timer->start
1831
1832Start the watcher.
1833
1834=item $timer = $timer->stop
1835
1836Stop the watcher.
1837
1838=back
1839
1840=head2 The C<urxvt::pw> Class
1841
1842This class implements process watchers. They create an event whenever a
1843process exits, after which they stop automatically.
1844
1845 my $pid = fork;
1846 ...
1847 $term->{pw} = urxvt::pw
1848 ->new
1849 ->start ($pid)
1850 ->cb (sub {
1851 my ($pw, $exit_status) = @_;
1852 ...
1853 });
1854
1855=over 4
1856
1857=item $pw = new urxvt::pw
1858
1859Create a new process watcher in stopped state.
1860
1861=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1862
1863Set the callback to be called when the timer triggers.
1864
1865=item $pw = $timer->start ($pid)
1866
1867Tells the wqtcher to start watching for process C<$pid>.
1868
1869=item $pw = $pw->stop
1870
1871Stop the watcher.
1872
1873=back
1874
1641=head1 ENVIRONMENT 1875=head1 ENVIRONMENT
1642 1876
1643=head2 URXVT_PERL_VERBOSITY 1877=head2 URXVT_PERL_VERBOSITY
1644 1878
1645This variable controls the verbosity level of the perl extension. Higher 1879This variable controls the verbosity level of the perl extension. Higher

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