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Revision 1.87 by root, Thu Jan 12 05:37:34 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
48C<--quoting-style=shell>. 52C<--quoting-style=shell>.
49 53
50A double-click usually selects the word under the cursor, further clicks 54A double-click usually selects the word under the cursor, further clicks
51will enlarge the selection. 55will enlarge the selection.
52 56
57The selection works by trying to match a number of regexes and displaying
58them in increasing order of length. You can add your own regexes by
59specifying resources of the form:
60
61 URxvt.selection.pattern-0: perl-regex
62 URxvt.selection.pattern-1: perl-regex
63 ...
64
65The index number (0, 1...) must not have any holes, and each regex must
66contain at least one pair of capturing parentheses, which will be used for
67the match. For example, the followign adds a regex that matches everything
68between two vertical bars:
69
70 URxvt.selection.pattern-0: \\|([^|]+)\\|
71
72You can look at the source of the selection extension to see more
73interesting uses, such as parsing a line from beginning to end.
74
53It also offers the following bindable keyboard command: 75This extension also offers following bindable keyboard commands:
54 76
55=over 4 77=over 4
56 78
57=item rot13 79=item rot13
58 80
70=item selection-popup (enabled by default) 92=item selection-popup (enabled by default)
71 93
72Binds 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
73text into various other formats/action (such as uri unescaping, perl 95text into various other formats/action (such as uri unescaping, perl
74evalution, 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 @{ $self->{term}{selection_popup_hook} }, sub {
113 /a/ ? ("a to be" => sub { s/a/b/g }
114 : ()
115 };
75 116
76=item searchable-scrollback<hotkey> (enabled by default) 117=item searchable-scrollback<hotkey> (enabled by default)
77 118
78Adds regex search functionality to the scrollback buffer, triggered 119Adds regex search functionality to the scrollback buffer, triggered
79by a hotkey (default: C<M-s>). While in search mode, normal terminal 120by a hotkey (default: C<M-s>). While in search mode, normal terminal
86bottom. C<Escape> leaves search mode and returns to the point where search 127bottom. C<Escape> leaves search mode and returns to the point where search
87was started, while C<Enter> or C<Return> stay at the current position and 128was started, while C<Enter> or C<Return> stay at the current position and
88additionally stores the first match in the current line into the primary 129additionally stores the first match in the current line into the primary
89selection. 130selection.
90 131
91=item digital-clock 132=item selection-autotransform
92 133
93Displays a digital clock using the built-in overlay. 134This selection allows you to do automatic transforms on a selection
135whenever a selection is made.
136
137It works by specifying perl snippets (most useful is a single C<s///>
138operator) that modify C<$_> as resources:
139
140 URxvt.selection-autotransform.0: transform
141 URxvt.selection-autotransform.1: transform
142 ...
143
144For example, the following will transform selections of the form
145C<filename:number>, often seen in compiler messages, into C<vi +$filename
146$word>:
147
148 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
149
150And this example matches the same,but replaces it with vi-commands you can
151paste directly into your (vi :) editor:
152
153 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/: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.
94 166
95=item mark-urls 167=item mark-urls
96 168
97Uses 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
98make them clickable. When middle-clicked, the program specified in the 170make them clickable. When middle-clicked, the program specified in the
99resource C<urlLauncher> (default C<x-www-browser>) will be started with 171resource C<urlLauncher> (default C<x-www-browser>) will be started with
100the URL as first argument. 172the URL as first argument.
101 173
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
102=item block-graphics-to-ascii 182=item block-graphics-to-ascii
103 183
104A 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,
105by replacing all line-drawing characters (U+2500 .. U+259F) by a 185by replacing all line-drawing characters (U+2500 .. U+259F) by a
106similar-looking ascii character. 186similar-looking ascii character.
107 187
188=item digital-clock
189
190Displays a digital clock using the built-in overlay.
191
108=item example-refresh-hooks 192=item example-refresh-hooks
109 193
110Displays 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
111window. Illustrates overwriting the refresh callbacks to create your own 195window. Illustrates overwriting the refresh callbacks to create your own
112overlays 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/%
113 226
114=back 227=back
115 228
116=head1 API DOCUMENTATION 229=head1 API DOCUMENTATION
117 230
190called whenever the relevant event happens. 303called whenever the relevant event happens.
191 304
192The 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
193the in the C<Extension Objects> section. 306the in the C<Extension Objects> section.
194 307
195B<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
196event 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
197skipped, and the relevant action might not be carried out by the C++ code. 310relevant action might not be carried out by the C++ code.
198 311
199I<< When in doubt, return a false value (preferably C<()>). >> 312I<< When in doubt, return a false value (preferably C<()>). >>
200 313
201=over 4 314=over 4
202 315
203=item on_init $term 316=item on_init $term
204 317
205Called after a new terminal object has been initialized, but before 318Called after a new terminal object has been initialized, but before
206windows 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
207call or deliver senseless data, as terminal size and other characteristics 320call or deliver senseless data, as terminal size and other characteristics
208have not yet been determined. You can safely query and change resources, 321have not yet been determined. You can safely query and change resources
209though. 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.
210 335
211=item on_reset $term 336=item on_reset $term
212 337
213Called 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
214control 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
215variables. 340variables.
216 341
217=item on_start $term 342=item on_child_start $term, $pid
218 343
219Called at the very end of initialisation of a new terminal, just before 344Called just after the child process has been C<fork>ed.
220returning 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>.
221 350
222=item on_sel_make $term, $eventtime 351=item on_sel_make $term, $eventtime
223 352
224Called 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
225selection 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
318 447
319Called whenever the user presses a key combination that has a 448Called whenever the user presses a key combination that has a
320C<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>
321resource in the @@RXVT_NAME@@(1) manpage). 450resource in the @@RXVT_NAME@@(1) manpage).
322 451
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
323=item on_focus_in $term 458=item on_focus_in $term
324 459
325Called whenever the window gets the keyboard focus, before rxvt-unicode 460Called whenever the window gets the keyboard focus, before rxvt-unicode
326does focus in processing. 461does focus in processing.
327 462
328=item on_focus_out $term 463=item on_focus_out $term
329 464
330Called wheneever the window loses keyboard focus, before rxvt-unicode does 465Called wheneever the window loses keyboard focus, before rxvt-unicode does
331focus out processing. 466focus out processing.
467
468=item on_configure_notify $term, $event
332 469
333=item on_key_press $term, $event, $keysym, $octets 470=item on_key_press $term, $event, $keysym, $octets
334 471
335=item on_key_release $term, $event, $keysym 472=item on_key_release $term, $event, $keysym
336 473
353 490
354C<on_key_press> additionally receives the string rxvt-unicode would 491C<on_key_press> additionally receives the string rxvt-unicode would
355output, if any, in locale-specific encoding. 492output, if any, in locale-specific encoding.
356 493
357subwindow. 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).
358 504
359=back 505=back
360 506
361=cut 507=cut
362 508
368use Scalar::Util (); 514use Scalar::Util ();
369use List::Util (); 515use List::Util ();
370 516
371our $VERSION = 1; 517our $VERSION = 1;
372our $TERM; 518our $TERM;
519our @TERM_INIT;
520our @TERM_EXT;
373our @HOOKNAME; 521our @HOOKNAME;
374our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 522our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
375our %OPTION; 523our %OPTION;
376 524
377our $LIBDIR; 525our $LIBDIR;
399=item $urxvt::TERM 547=item $urxvt::TERM
400 548
401The current terminal. This variable stores the current C<urxvt::term> 549The current terminal. This variable stores the current C<urxvt::term>
402object, whenever a callback/hook is executing. 550object, whenever a callback/hook is executing.
403 551
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
404=back 568=back
405 569
406=head2 Functions in the C<urxvt> Package 570=head2 Functions in the C<urxvt> Package
407 571
408=over 4 572=over 4
422Using 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
423correct place, e.g. on stderr of the connecting urxvtc client. 587correct place, e.g. on stderr of the connecting urxvtc client.
424 588
425Messages have a size limit of 1023 bytes currently. 589Messages have a size limit of 1023 bytes currently.
426 590
427=item $is_safe = urxvt::safe
428
429Returns true when it is safe to do potentially unsafe things, such as
430evaluating perl code specified by the user. This is true when urxvt was
431started setuid or setgid.
432
433=item $time = urxvt::NOW 591=item $time = urxvt::NOW
434 592
435Returns the "current time" (as per the event loop). 593Returns the "current time" (as per the event loop).
436 594
437=item urxvt::CurrentTime 595=item urxvt::CurrentTime
438 596
439=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 597=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
440Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 598Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
441Button4Mask, 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
442 616
443Various constants for use in X calls and event processing. 617Various constants for use in X calls and event processing.
444 618
445=back 619=back
446 620
497=back 671=back
498 672
499=cut 673=cut
500 674
501BEGIN { 675BEGIN {
502 urxvt->bootstrap;
503
504 # overwrite perl's warn 676 # overwrite perl's warn
505 *CORE::GLOBAL::warn = sub { 677 *CORE::GLOBAL::warn = sub {
506 my $msg = join "", @_; 678 my $msg = join "", @_;
507 $msg .= "\n" 679 $msg .= "\n"
508 unless $msg =~ /\n$/; 680 unless $msg =~ /\n$/;
509 urxvt::warn ($msg); 681 urxvt::warn ($msg);
510 }; 682 };
511
512 # %ENV is the original startup environment
513 delete $ENV{IFS};
514 delete $ENV{CDPATH};
515 delete $ENV{BASH_ENV};
516 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
517} 683}
518 684
519my @hook_count;
520my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 685my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
521 686
522sub verbose { 687sub verbose {
523 my ($level, $msg) = @_; 688 my ($level, $msg) = @_;
524 warn "$msg\n" if $level <= $verbosity; 689 warn "$msg\n" if $level <= $verbosity;
525} 690}
526 691
527my $extension_pkg = "extension0000";
528my %extension_pkg; 692my %extension_pkg;
529 693
530# load a single script into its own package, once only 694# load a single script into its own package, once only
531sub extension_package($) { 695sub extension_package($) {
532 my ($path) = @_; 696 my ($path) = @_;
533 697
534 $extension_pkg{$path} ||= do { 698 $extension_pkg{$path} ||= do {
535 my $pkg = "urxvt::" . ($extension_pkg++); 699 $path =~ /([^\/\\]+)$/;
700 my $pkg = $1;
701 $pkg =~ s/[^[:word:]]/_/g;
702 $pkg = "urxvt::ext::$pkg";
536 703
537 verbose 3, "loading extension '$path' into package '$pkg'"; 704 verbose 3, "loading extension '$path' into package '$pkg'";
538 705
539 open my $fh, "<:raw", $path 706 open my $fh, "<:raw", $path
540 or die "$path: $!"; 707 or die "$path: $!";
541 708
542 my $source = untaint 709 my $source =
543 "package $pkg; use strict; use utf8;\n" 710 "package $pkg; use strict; use utf8;\n"
544 . "use base urxvt::term::extension::;\n"
545 . "#line 1 \"$path\"\n{\n" 711 . "#line 1 \"$path\"\n{\n"
546 . (do { local $/; <$fh> }) 712 . (do { local $/; <$fh> })
547 . "\n};\n1"; 713 . "\n};\n1";
548 714
549 eval $source 715 eval $source
563 if ($htype == 0) { # INIT 729 if ($htype == 0) { # INIT
564 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 730 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
565 731
566 my %ext_arg; 732 my %ext_arg;
567 733
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
568 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 743 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
569 if ($_ eq "default") { 744 if ($_ eq "default") {
570 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 745 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
571 } elsif (/^-(.*)$/) { 746 } elsif (/^-(.*)$/) {
572 delete $ext_arg{$1}; 747 delete $ext_arg{$1};
573 } elsif (/^([^<]+)<(.*)>$/) { 748 } elsif (/^([^<]+)<(.*)>$/) {
598 if $verbosity >= 10; 773 if $verbosity >= 10;
599 774
600 keys %$cb; 775 keys %$cb;
601 776
602 while (my ($pkg, $cb) = each %$cb) { 777 while (my ($pkg, $cb) = each %$cb) {
603 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 778 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
604 and last; 779 $retval ||= $retval_;
605 780
606 if ($@) { 781 if ($@) {
607 $TERM->ungrab; # better to lose the grab than the session 782 $TERM->ungrab; # better to lose the grab than the session
608 warn $@; 783 warn $@;
609 } 784 }
612 verbose 11, "$HOOKNAME[$htype] returning <$retval>" 787 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
613 if $verbosity >= 11; 788 if $verbosity >= 11;
614 } 789 }
615 790
616 if ($htype == 1) { # DESTROY 791 if ($htype == 1) { # DESTROY
617 if (my $hook = delete $TERM->{_hook}) {
618 for my $htype (0..$#$hook) {
619 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
620 or set_should_invoke $htype, 0;
621 }
622 }
623
624 # clear package objects 792 # clear package objects
625 %$_ = () for values %{ $TERM->{_pkg} }; 793 %$_ = () for values %{ $TERM->{_pkg} };
626 794
627 # clear package 795 # clear package
628 %$TERM = (); 796 %$TERM = ();
629 } 797 }
630 798
631 $retval 799 $retval
632}
633
634sub exec_async(@) {
635 my $pid = fork;
636
637 return
638 if !defined $pid or $pid;
639
640 %ENV = %{ $TERM->env };
641
642 exec @_;
643 _exit 255;
644} 800}
645 801
646# urxvt::term::extension 802# urxvt::term::extension
647 803
648package urxvt::term::extension; 804package urxvt::term::extension;
654 while (my ($name, $cb) = each %hook) { 810 while (my ($name, $cb) = each %hook) {
655 my $htype = $HOOKTYPE{uc $name}; 811 my $htype = $HOOKTYPE{uc $name};
656 defined $htype 812 defined $htype
657 or Carp::croak "unsupported hook type '$name'"; 813 or Carp::croak "unsupported hook type '$name'";
658 814
815 $self->set_should_invoke ($htype, +1)
659 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 816 unless exists $self->{term}{_hook}[$htype]{$pkg};
660 $hook_count[$htype]++
661 or urxvt::set_should_invoke $htype, 1;
662 }
663 817
664 $self->{term}{_hook}[$htype]{$pkg} = $cb; 818 $self->{term}{_hook}[$htype]{$pkg} = $cb;
665 } 819 }
666} 820}
667 821
672 for my $name (@hook) { 826 for my $name (@hook) {
673 my $htype = $HOOKTYPE{uc $name}; 827 my $htype = $HOOKTYPE{uc $name};
674 defined $htype 828 defined $htype
675 or Carp::croak "unsupported hook type '$name'"; 829 or Carp::croak "unsupported hook type '$name'";
676 830
831 $self->set_should_invoke ($htype, -1)
677 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 832 if delete $self->{term}{_hook}[$htype]{$pkg};
678 --$hook_count[$htype]
679 or urxvt::set_should_invoke $htype, 0;
680 }
681 } 833 }
682} 834}
683 835
684our $AUTOLOAD; 836our $AUTOLOAD;
685 837
791# find on_xxx subs in the package and register them 943# find on_xxx subs in the package and register them
792# as hooks 944# as hooks
793sub register_package { 945sub register_package {
794 my ($self, $pkg, $argv) = @_; 946 my ($self, $pkg, $argv) = @_;
795 947
948 no strict 'refs';
949
950 urxvt::verbose 6, "register package $pkg to $self";
951
952 @{"$pkg\::ISA"} = urxvt::term::extension::;
953
796 my $proxy = bless { 954 my $proxy = bless {
797 _pkg => $pkg, 955 _pkg => $pkg,
798 argv => $argv, 956 argv => $argv,
799 }, $pkg; 957 }, $pkg;
800 Scalar::Util::weaken ($proxy->{term} = $self); 958 Scalar::Util::weaken ($proxy->{term} = $self);
831 989
832Destroy the terminal object (close the window, free resources 990Destroy the terminal object (close the window, free resources
833etc.). 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
834watchers (timers, io watchers) are still active. 992watchers (timers, io watchers) are still active.
835 993
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
836=item $isset = $term->option ($optval[, $set]) 1019=item $isset = $term->option ($optval[, $set])
837 1020
838Returns true if the option specified by C<$optval> is enabled, and 1021Returns true if the option specified by C<$optval> is enabled, and
839optionally 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
840C<%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.
842Here 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
843source file F</src/optinc.h> to see the actual list: 1026source file F</src/optinc.h> to see the actual list:
844 1027
845 borderLess console cursorBlink cursorUnderline hold iconic insecure 1028 borderLess console cursorBlink cursorUnderline hold iconic insecure
846 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1029 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
847 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1030 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
848 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1031 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
849 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1032 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
850 tripleclickwords utmpInhibit visualBell 1033 transparent tripleclickwords utmpInhibit visualBell
851 1034
852=item $value = $term->resource ($name[, $newval]) 1035=item $value = $term->resource ($name[, $newval])
853 1036
854Returns the current resource value associated with a given name and 1037Returns the current resource value associated with a given name and
855optionally 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>
872 1055
873 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1056 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
874 borderLess color cursorBlink cursorUnderline cutchars delete_key 1057 borderLess color cursorBlink cursorUnderline cutchars delete_key
875 display_name embed ext_bwidth fade font geometry hold iconName 1058 display_name embed ext_bwidth fade font geometry hold iconName
876 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1059 imFont imLocale inputMethod insecure int_bwidth intensityStyles
877 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1060 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
878 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1061 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
879 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1062 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
880 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1063 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
881 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1064 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
882 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1065 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
883 shade term_name title transparent transparent_all tripleclickwords 1066 secondaryScreen secondaryScroll selectstyle shade term_name title
884 utmpInhibit visualBell 1067 transient_for transparent transparent_all tripleclickwords utmpInhibit
1068 visualBell
885 1069
886=cut 1070=cut
887 1071
888sub resource($$;$) { 1072sub resource($$;$) {
889 my ($self, $name) = (shift, shift); 1073 my ($self, $name) = (shift, shift);
1090 1274
1091=item $windowid = $term->vt 1275=item $windowid = $term->vt
1092 1276
1093Return the window id of the terminal window. 1277Return the window id of the terminal window.
1094 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
1095=item $window_width = $term->width 1286=item $window_width = $term->width
1096 1287
1097=item $window_height = $term->height 1288=item $window_height = $term->height
1098 1289
1099=item $font_width = $term->fwidth 1290=item $font_width = $term->fwidth
1112 1303
1113=item $max_scrollback = $term->saveLines 1304=item $max_scrollback = $term->saveLines
1114 1305
1115=item $nrow_plus_saveLines = $term->total_rows 1306=item $nrow_plus_saveLines = $term->total_rows
1116 1307
1117=item $lines_in_scrollback = $term->nsaved 1308=item $topmost_scrollback_row = $term->top_row
1118 1309
1119Return various integers describing terminal characteristics. 1310Return various integers describing terminal characteristics.
1120 1311
1121=item $x_display = $term->display_id 1312=item $x_display = $term->display_id
1122 1313
1150Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1341Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1151AltGr), 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.
1152 1343
1153=item $view_start = $term->view_start ([$newvalue]) 1344=item $view_start = $term->view_start ([$newvalue])
1154 1345
1155Returns the negative row number of the topmost line. Minimum value is 1346Returns the row number of the topmost displayed line. Maximum value is
1156C<0>, which displays the normal terminal contents. Larger values scroll 1347C<0>, which displays the normal terminal contents. Lower values scroll
1157this many lines into the scrollback buffer. 1348this many lines into the scrollback buffer.
1158 1349
1159=item $term->want_refresh 1350=item $term->want_refresh
1160 1351
1161Requests a screen refresh. At the next opportunity, rxvt-unicode will 1352Requests a screen refresh. At the next opportunity, rxvt-unicode will
1474 my $env = $self->{term}->env; 1665 my $env = $self->{term}->env;
1475 # 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.
1476 delete $env->{LC_ALL}; 1667 delete $env->{LC_ALL};
1477 $env->{LC_CTYPE} = $self->{term}->locale; 1668 $env->{LC_CTYPE} = $self->{term}->locale;
1478 1669
1479 urxvt::term->new ($env, $self->{term}->resource ("name"), 1670 urxvt::term->new ($env, "popup",
1480 "--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",
1481 "--transient-for" => $self->{term}->parent, 1674 "--transient-for" => $self->{term}->parent,
1482 "-display" => $self->{term}->display_id, 1675 "-display" => $self->{term}->display_id,
1483 "-pe" => "urxvt-popup") 1676 "-pe" => "urxvt-popup")
1484 or die "unable to create popup window\n"; 1677 or die "unable to create popup window\n";
1485} 1678}
1490 delete $self->{term}{_destroy}{$self}; 1683 delete $self->{term}{_destroy}{$self};
1491 $self->{term}->ungrab; 1684 $self->{term}->ungrab;
1492} 1685}
1493 1686
1494=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__;
1495 1697
1496=head2 The C<urxvt::timer> Class 1698=head2 The C<urxvt::timer> Class
1497 1699
1498This class implements timer watchers/events. Time is represented as a 1700This class implements timer watchers/events. Time is represented as a
1499fractional number of seconds since the epoch. Example: 1701fractional number of seconds since the epoch. Example:
1537Start the timer. 1739Start the timer.
1538 1740
1539=item $timer = $timer->start ($tstamp) 1741=item $timer = $timer->start ($tstamp)
1540 1742
1541Set 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>.
1542 1748
1543=item $timer = $timer->stop 1749=item $timer = $timer->stop
1544 1750
1545Stop the timer. 1751Stop the timer.
1546 1752
1593 1799
1594Stop watching for events on the given filehandle. 1800Stop watching for events on the given filehandle.
1595 1801
1596=back 1802=back
1597 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
1598=head1 ENVIRONMENT 1865=head1 ENVIRONMENT
1599 1866
1600=head2 URXVT_PERL_VERBOSITY 1867=head2 URXVT_PERL_VERBOSITY
1601 1868
1602This 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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