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Revision 1.90 by root, Thu Jan 12 12:15:10 2006 UTC vs.
Revision 1.121 by root, Fri Jan 20 22:49:34 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
87 91
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. 96evaluation, 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 readline
168
169A support package that tries to make editing with readline easier. At the
170moment, it reacts to clicking with the left mouse button by trying to
171move the text cursor to this position. It does so by generating as many
172cursor-left or cursor-right keypresses as required (the this only works
173for programs that correctly support wide characters).
174
175It only works when clicking into the same line (possibly extended over
176multiple rows) as the text cursor and on the primary screen, to reduce the
177risk of misinterpreting. The normal selection isn't disabled, so quick
178successive clicks might interfere with selection creation in harmless
179ways.
180
181=item tabbed
182
183This transforms the terminal into a tabbar with additional terminals, that
184is, it implements what is commonly refered to as "tabbed terminal". The topmost line
185displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
186button per tab.
187
188Clicking a button will activate that tab. Pressing B<Shift-Left> and
189B<Shift-Right> will switch to the tab left or right of the current one,
190while B<Shift-Down> creates a new tab.
133 191
134=item mark-urls 192=item mark-urls
135 193
136Uses per-line display filtering (C<on_line_update>) to underline urls and 194Uses per-line display filtering (C<on_line_update>) to underline urls and
137make them clickable. When middle-clicked, the program specified in the 195make them clickable. When middle-clicked, the program specified in the
138resource C<urlLauncher> (default C<x-www-browser>) will be started with 196resource C<urlLauncher> (default C<x-www-browser>) will be started with
139the URL as first argument. 197the URL as first argument.
140 198
199=item automove-background
200
201This is basically a one-line extension that dynamically changes the background pixmap offset
202to the window position, in effect creating the same effect as pseudo transparency with
203a custom pixmap. No scaling is supported in this mode. Exmaple:
204
205 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
206
141=item block-graphics-to-ascii 207=item block-graphics-to-ascii
142 208
143A not very useful example of filtering all text output to the terminal, 209A not very useful example of filtering all text output to the terminal,
144by replacing all line-drawing characters (U+2500 .. U+259F) by a 210by replacing all line-drawing characters (U+2500 .. U+259F) by a
145similar-looking ascii character. 211similar-looking ascii character.
151=item example-refresh-hooks 217=item example-refresh-hooks
152 218
153Displays a very simple digital clock in the upper right corner of the 219Displays a very simple digital clock in the upper right corner of the
154window. Illustrates overwriting the refresh callbacks to create your own 220window. Illustrates overwriting the refresh callbacks to create your own
155overlays or changes. 221overlays or changes.
222
223=item selection-pastebin
224
225This is a little rarely useful extension that Uploads the selection as
226textfile to a remote site (or does other things). (The implementation is
227not currently secure for use in a multiuser environment as it writes to
228F</tmp> directly.).
229
230It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
231i.e.
232
233 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
234
235Pressing this combination runs a command with C<%> replaced by the name of
236the textfile. This command can be set via a resource:
237
238 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
239
240And the default is likely not useful to anybody but the few people around
241here :)
242
243The name of the textfile is the hex encoded md5 sum of the selection, so
244the same content should lead to the same filename.
245
246After a successful upload the selection will be replaced by the text given
247in the C<selection-pastebin-url> resource (again, the % is the placeholder
248for the filename):
249
250 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
156 251
157=back 252=back
158 253
159=head1 API DOCUMENTATION 254=head1 API DOCUMENTATION
160 255
233called whenever the relevant event happens. 328called whenever the relevant event happens.
234 329
235The first argument passed to them is an extension oject as described in 330The first argument passed to them is an extension oject as described in
236the in the C<Extension Objects> section. 331the in the C<Extension Objects> section.
237 332
238B<All> of these hooks must return a boolean value. If it is true, then the 333B<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 334hooks 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. 335relevant action might not be carried out by the C++ code.
241 336
242I<< When in doubt, return a false value (preferably C<()>). >> 337I<< When in doubt, return a false value (preferably C<()>). >>
243 338
244=over 4 339=over 4
245 340
246=item on_init $term 341=item on_init $term
247 342
248Called after a new terminal object has been initialized, but before 343Called after a new terminal object has been initialized, but before
249windows are created or the command gets run. Most methods are unsafe to 344windows are created or the command gets run. Most methods are unsafe to
250call or deliver senseless data, as terminal size and other characteristics 345call or deliver senseless data, as terminal size and other characteristics
251have not yet been determined. You can safely query and change resources, 346have not yet been determined. You can safely query and change resources
252though. 347and options, though. For many purposes the C<on_start> hook is a better
348place.
349
350=item on_start $term
351
352Called at the very end of initialisation of a new terminal, just before
353trying to map (display) the toplevel and returning to the mainloop.
354
355=item on_destroy $term
356
357Called whenever something tries to destroy terminal, before doing anything
358yet. If this hook returns true, then destruction is skipped, but this is
359rarely a good idea.
253 360
254=item on_reset $term 361=item on_reset $term
255 362
256Called after the screen is "reset" for any reason, such as resizing or 363Called 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 364control sequences. Here is where you can react on changes to size-related
258variables. 365variables.
259 366
260=item on_start $term 367=item on_child_start $term, $pid
261 368
262Called at the very end of initialisation of a new terminal, just before 369Called just after the child process has been C<fork>ed.
263returning to the mainloop. 370
371=item on_child_exit $term, $status
372
373Called just after the child process has exited. C<$status> is the status
374from C<waitpid>.
264 375
265=item on_sel_make $term, $eventtime 376=item on_sel_make $term, $eventtime
266 377
267Called whenever a selection has been made by the user, but before the 378Called 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 379selection text is copied, so changes to the beginning, end or type of the
361 472
362Called whenever the user presses a key combination that has a 473Called whenever the user presses a key combination that has a
363C<perl:string> action bound to it (see description of the B<keysym> 474C<perl:string> action bound to it (see description of the B<keysym>
364resource in the @@RXVT_NAME@@(1) manpage). 475resource in the @@RXVT_NAME@@(1) manpage).
365 476
477=item on_x_event $term, $event
478
479Called on every X event received on the vt window (and possibly other
480windows). Should only be used as a last resort. Most event structure
481members are not passed.
482
366=item on_focus_in $term 483=item on_focus_in $term
367 484
368Called whenever the window gets the keyboard focus, before rxvt-unicode 485Called whenever the window gets the keyboard focus, before rxvt-unicode
369does focus in processing. 486does focus in processing.
370 487
371=item on_focus_out $term 488=item on_focus_out $term
372 489
373Called wheneever the window loses keyboard focus, before rxvt-unicode does 490Called wheneever the window loses keyboard focus, before rxvt-unicode does
374focus out processing. 491focus out processing.
375 492
493=item on_configure_notify $term, $event
494
495=item on_property_notify $term, $event
496
376=item on_key_press $term, $event, $keysym, $octets 497=item on_key_press $term, $event, $keysym, $octets
377 498
378=item on_key_release $term, $event, $keysym 499=item on_key_release $term, $event, $keysym
379 500
380=item on_button_press $term, $event 501=item on_button_press $term, $event
389 510
390Called whenever the corresponding X event is received for the terminal If 511Called whenever the corresponding X event is received for the terminal If
391the hook returns true, then the even will be ignored by rxvt-unicode. 512the hook returns true, then the even will be ignored by rxvt-unicode.
392 513
393The event is a hash with most values as named by Xlib (see the XEvent 514The event is a hash with most values as named by Xlib (see the XEvent
394manpage), with the additional members C<row> and C<col>, which are the row 515manpage), with the additional members C<row> and C<col>, which are the
395and column under the mouse cursor. 516(real, not screen-based) row and column under the mouse cursor.
396 517
397C<on_key_press> additionally receives the string rxvt-unicode would 518C<on_key_press> additionally receives the string rxvt-unicode would
398output, if any, in locale-specific encoding. 519output, if any, in locale-specific encoding.
399 520
400subwindow. 521subwindow.
522
523=item on_client_message $term, $event
524
525=item on_wm_protocols $term, $event
526
527=item on_wm_delete_window $term, $event
528
529Called when various types of ClientMessage events are received (all with
530format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
401 531
402=back 532=back
403 533
404=cut 534=cut
405 535
411use Scalar::Util (); 541use Scalar::Util ();
412use List::Util (); 542use List::Util ();
413 543
414our $VERSION = 1; 544our $VERSION = 1;
415our $TERM; 545our $TERM;
546our @TERM_INIT;
547our @TERM_EXT;
416our @HOOKNAME; 548our @HOOKNAME;
417our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 549our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
418our %OPTION; 550our %OPTION;
419 551
420our $LIBDIR; 552our $LIBDIR;
421our $RESNAME; 553our $RESNAME;
422our $RESCLASS; 554our $RESCLASS;
423our $RXVTNAME; 555our $RXVTNAME;
424 556
557our $NOCHAR = chr 0xfffe;
558
425=head2 Variables in the C<urxvt> Package 559=head2 Variables in the C<urxvt> Package
426 560
427=over 4 561=over 4
428 562
429=item $urxvt::LIBDIR 563=item $urxvt::LIBDIR
441 575
442=item $urxvt::TERM 576=item $urxvt::TERM
443 577
444The current terminal. This variable stores the current C<urxvt::term> 578The current terminal. This variable stores the current C<urxvt::term>
445object, whenever a callback/hook is executing. 579object, whenever a callback/hook is executing.
580
581=item @urxvt::TERM_INIT
582
583All coderefs in this array will be called as methods of the next newly
584created C<urxvt::term> object (during the C<on_init> phase). The array
585gets cleared before the codereferences that were in it are being executed,
586so coderefs can push themselves onto it again if they so desire.
587
588This complements to the perl-eval commandline option, but gets executed
589first.
590
591=item @urxvt::TERM_EXT
592
593Works similar to C<@TERM_INIT>, but contains perl package/class names, which
594get registered as normal extensions after calling the hooks in C<@TERM_INIT>
595but before other extensions. Gets cleared just like C<@TERM_INIT>.
446 596
447=back 597=back
448 598
449=head2 Functions in the C<urxvt> Package 599=head2 Functions in the C<urxvt> Package
450 600
465Using this function has the advantage that its output ends up in the 615Using this function has the advantage that its output ends up in the
466correct place, e.g. on stderr of the connecting urxvtc client. 616correct place, e.g. on stderr of the connecting urxvtc client.
467 617
468Messages have a size limit of 1023 bytes currently. 618Messages have a size limit of 1023 bytes currently.
469 619
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 620=item $time = urxvt::NOW
477 621
478Returns the "current time" (as per the event loop). 622Returns the "current time" (as per the event loop).
479 623
480=item urxvt::CurrentTime 624=item urxvt::CurrentTime
481 625
482=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 626=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
483Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 627Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
484Button4Mask, Button5Mask, AnyModifier 628Button4Mask, Button5Mask, AnyModifier
629
630=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
631ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
632PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
633Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
634KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
635ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
636FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
637
638=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
639EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
640GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
641UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
642ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
643CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
644SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
485 645
486Various constants for use in X calls and event processing. 646Various constants for use in X calls and event processing.
487 647
488=back 648=back
489 649
540=back 700=back
541 701
542=cut 702=cut
543 703
544BEGIN { 704BEGIN {
545 urxvt->bootstrap;
546
547 # overwrite perl's warn 705 # overwrite perl's warn
548 *CORE::GLOBAL::warn = sub { 706 *CORE::GLOBAL::warn = sub {
549 my $msg = join "", @_; 707 my $msg = join "", @_;
550 $msg .= "\n" 708 $msg .= "\n"
551 unless $msg =~ /\n$/; 709 unless $msg =~ /\n$/;
552 urxvt::warn ($msg); 710 urxvt::warn ($msg);
553 }; 711 };
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} 712}
561 713
562my @hook_count;
563my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 714my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
564 715
565sub verbose { 716sub verbose {
566 my ($level, $msg) = @_; 717 my ($level, $msg) = @_;
567 warn "$msg\n" if $level <= $verbosity; 718 warn "$msg\n" if $level <= $verbosity;
568} 719}
569 720
570my $extension_pkg = "extension0000";
571my %extension_pkg; 721my %extension_pkg;
572 722
573# load a single script into its own package, once only 723# load a single script into its own package, once only
574sub extension_package($) { 724sub extension_package($) {
575 my ($path) = @_; 725 my ($path) = @_;
576 726
577 $extension_pkg{$path} ||= do { 727 $extension_pkg{$path} ||= do {
578 my $pkg = "urxvt::" . ($extension_pkg++); 728 $path =~ /([^\/\\]+)$/;
729 my $pkg = $1;
730 $pkg =~ s/[^[:word:]]/_/g;
731 $pkg = "urxvt::ext::$pkg";
579 732
580 verbose 3, "loading extension '$path' into package '$pkg'"; 733 verbose 3, "loading extension '$path' into package '$pkg'";
581 734
582 open my $fh, "<:raw", $path 735 open my $fh, "<:raw", $path
583 or die "$path: $!"; 736 or die "$path: $!";
584 737
585 my $source = untaint 738 my $source =
586 "package $pkg; use strict; use utf8;\n" 739 "package $pkg; use strict; use utf8;\n"
587 . "use base urxvt::term::extension::;\n"
588 . "#line 1 \"$path\"\n{\n" 740 . "#line 1 \"$path\"\n{\n"
589 . (do { local $/; <$fh> }) 741 . (do { local $/; <$fh> })
590 . "\n};\n1"; 742 . "\n};\n1";
591 743
592 eval $source 744 eval $source
606 if ($htype == 0) { # INIT 758 if ($htype == 0) { # INIT
607 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 759 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
608 760
609 my %ext_arg; 761 my %ext_arg;
610 762
763 {
764 my @init = @TERM_INIT;
765 @TERM_INIT = ();
766 $_->($TERM) for @init;
767 my @pkg = @TERM_EXT;
768 @TERM_EXT = ();
769 $TERM->register_package ($_) for @pkg;
770 }
771
611 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 772 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
612 if ($_ eq "default") { 773 if ($_ eq "default") {
613 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 774 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
614 } elsif (/^-(.*)$/) { 775 } elsif (/^-(.*)$/) {
615 delete $ext_arg{$1}; 776 delete $ext_arg{$1};
616 } elsif (/^([^<]+)<(.*)>$/) { 777 } elsif (/^([^<]+)<(.*)>$/) {
641 if $verbosity >= 10; 802 if $verbosity >= 10;
642 803
643 keys %$cb; 804 keys %$cb;
644 805
645 while (my ($pkg, $cb) = each %$cb) { 806 while (my ($pkg, $cb) = each %$cb) {
646 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 807 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
647 and last; 808 $retval ||= $retval_;
648 809
649 if ($@) { 810 if ($@) {
650 $TERM->ungrab; # better to lose the grab than the session 811 $TERM->ungrab; # better to lose the grab than the session
651 warn $@; 812 warn $@;
652 } 813 }
655 verbose 11, "$HOOKNAME[$htype] returning <$retval>" 816 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
656 if $verbosity >= 11; 817 if $verbosity >= 11;
657 } 818 }
658 819
659 if ($htype == 1) { # DESTROY 820 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 $htype, 0;
664 }
665 }
666
667 # clear package objects 821 # clear package objects
668 %$_ = () for values %{ $TERM->{_pkg} }; 822 %$_ = () for values %{ $TERM->{_pkg} };
669 823
670 # clear package 824 # clear package
671 %$TERM = (); 825 %$TERM = ();
672 } 826 }
673 827
674 $retval 828 $retval
675}
676
677sub exec_async(@) {
678 my $pid = fork;
679
680 return
681 if !defined $pid or $pid;
682
683 %ENV = %{ $TERM->env };
684
685 exec @_;
686 _exit 255;
687} 829}
688 830
689# urxvt::term::extension 831# urxvt::term::extension
690 832
691package urxvt::term::extension; 833package urxvt::term::extension;
697 while (my ($name, $cb) = each %hook) { 839 while (my ($name, $cb) = each %hook) {
698 my $htype = $HOOKTYPE{uc $name}; 840 my $htype = $HOOKTYPE{uc $name};
699 defined $htype 841 defined $htype
700 or Carp::croak "unsupported hook type '$name'"; 842 or Carp::croak "unsupported hook type '$name'";
701 843
844 $self->set_should_invoke ($htype, +1)
702 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 845 unless exists $self->{term}{_hook}[$htype]{$pkg};
703 $hook_count[$htype]++
704 or urxvt::set_should_invoke $htype, 1;
705 }
706 846
707 $self->{term}{_hook}[$htype]{$pkg} = $cb; 847 $self->{term}{_hook}[$htype]{$pkg} = $cb;
708 } 848 }
709} 849}
710 850
715 for my $name (@hook) { 855 for my $name (@hook) {
716 my $htype = $HOOKTYPE{uc $name}; 856 my $htype = $HOOKTYPE{uc $name};
717 defined $htype 857 defined $htype
718 or Carp::croak "unsupported hook type '$name'"; 858 or Carp::croak "unsupported hook type '$name'";
719 859
860 $self->set_should_invoke ($htype, -1)
720 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 861 if delete $self->{term}{_hook}[$htype]{$pkg};
721 --$hook_count[$htype]
722 or urxvt::set_should_invoke $htype, 0;
723 }
724 } 862 }
725} 863}
726 864
727our $AUTOLOAD; 865our $AUTOLOAD;
728 866
834# find on_xxx subs in the package and register them 972# find on_xxx subs in the package and register them
835# as hooks 973# as hooks
836sub register_package { 974sub register_package {
837 my ($self, $pkg, $argv) = @_; 975 my ($self, $pkg, $argv) = @_;
838 976
977 no strict 'refs';
978
979 urxvt::verbose 6, "register package $pkg to $self";
980
981 @{"$pkg\::ISA"} = urxvt::term::extension::;
982
839 my $proxy = bless { 983 my $proxy = bless {
840 _pkg => $pkg, 984 _pkg => $pkg,
841 argv => $argv, 985 argv => $argv,
842 }, $pkg; 986 }, $pkg;
843 Scalar::Util::weaken ($proxy->{term} = $self); 987 Scalar::Util::weaken ($proxy->{term} = $self);
874 1018
875Destroy the terminal object (close the window, free resources 1019Destroy the terminal object (close the window, free resources
876etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1020etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
877watchers (timers, io watchers) are still active. 1021watchers (timers, io watchers) are still active.
878 1022
1023=item $term->exec_async ($cmd[, @args])
1024
1025Works like the combination of the C<fork>/C<exec> builtins, which executes
1026("starts") programs in the background. This function takes care of setting
1027the user environment before exec'ing the command (e.g. C<PATH>) and should
1028be preferred over explicit calls to C<exec> or C<system>.
1029
1030Returns the pid of the subprocess or C<undef> on error.
1031
1032=cut
1033
1034sub exec_async {
1035 my $self = shift;
1036
1037 my $pid = fork;
1038
1039 return $pid
1040 if !defined $pid or $pid;
1041
1042 %ENV = %{ $self->env };
1043
1044 exec @_;
1045 urxvt::_exit 255;
1046}
1047
879=item $isset = $term->option ($optval[, $set]) 1048=item $isset = $term->option ($optval[, $set])
880 1049
881Returns true if the option specified by C<$optval> is enabled, and 1050Returns true if the option specified by C<$optval> is enabled, and
882optionally change it. All option values are stored by name in the hash 1051optionally 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. 1052C<%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 1054Here is a a likely non-exhaustive list of option names, please see the
886source file F</src/optinc.h> to see the actual list: 1055source file F</src/optinc.h> to see the actual list:
887 1056
888 borderLess console cursorBlink cursorUnderline hold iconic insecure 1057 borderLess console cursorBlink cursorUnderline hold iconic insecure
889 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1058 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
890 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1059 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
891 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1060 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
892 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1061 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
893 tripleclickwords utmpInhibit visualBell 1062 transparent tripleclickwords utmpInhibit visualBell
894 1063
895=item $value = $term->resource ($name[, $newval]) 1064=item $value = $term->resource ($name[, $newval])
896 1065
897Returns the current resource value associated with a given name and 1066Returns the current resource value associated with a given name and
898optionally sets a new value. Setting values is most useful in the C<init> 1067optionally sets a new value. Setting values is most useful in the C<init>
915 1084
916 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1085 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
917 borderLess color cursorBlink cursorUnderline cutchars delete_key 1086 borderLess color cursorBlink cursorUnderline cutchars delete_key
918 display_name embed ext_bwidth fade font geometry hold iconName 1087 display_name embed ext_bwidth fade font geometry hold iconName
919 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1088 imFont imLocale inputMethod insecure int_bwidth intensityStyles
920 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1089 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
921 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1090 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
922 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1091 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
923 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1092 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
924 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1093 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
925 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1094 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
926 shade term_name title transparent transparent_all tripleclickwords 1095 secondaryScreen secondaryScroll selectstyle shade term_name title
927 utmpInhibit visualBell 1096 transient_for transparent transparent_all tripleclickwords utmpInhibit
1097 visualBell
928 1098
929=cut 1099=cut
930 1100
931sub resource($$;$) { 1101sub resource($$;$) {
932 my ($self, $name) = (shift, shift); 1102 my ($self, $name) = (shift, shift);
1106 1276
1107Normally its not a good idea to use this function, as programs might be 1277Normally its not a good idea to use this function, as programs might be
1108confused by changes in cursor position or scrolling. Its useful inside a 1278confused by changes in cursor position or scrolling. Its useful inside a
1109C<on_add_lines> hook, though. 1279C<on_add_lines> hook, though.
1110 1280
1281=item $term->scr_change_screen ($screen)
1282
1283Switch to given screen - 0 primary, 1 secondary.
1284
1111=item $term->cmd_parse ($octets) 1285=item $term->cmd_parse ($octets)
1112 1286
1113Similar to C<scr_add_lines>, but the argument must be in the 1287Similar to C<scr_add_lines>, but the argument must be in the
1114locale-specific encoding of the terminal and can contain command sequences 1288locale-specific encoding of the terminal and can contain command sequences
1115(escape codes) that will be interpreted. 1289(escape codes) that will be interpreted.
1133 1307
1134=item $windowid = $term->vt 1308=item $windowid = $term->vt
1135 1309
1136Return the window id of the terminal window. 1310Return the window id of the terminal window.
1137 1311
1312=item $term->vt_emask_add ($x_event_mask)
1313
1314Adds the specified events to the vt event mask. Useful e.g. when you want
1315to receive pointer events all the times:
1316
1317 $term->vt_emask_add (urxvt::PointerMotionMask);
1318
1138=item $window_width = $term->width 1319=item $window_width = $term->width
1139 1320
1140=item $window_height = $term->height 1321=item $window_height = $term->height
1141 1322
1142=item $font_width = $term->fwidth 1323=item $font_width = $term->fwidth
1155 1336
1156=item $max_scrollback = $term->saveLines 1337=item $max_scrollback = $term->saveLines
1157 1338
1158=item $nrow_plus_saveLines = $term->total_rows 1339=item $nrow_plus_saveLines = $term->total_rows
1159 1340
1160=item $lines_in_scrollback = $term->nsaved 1341=item $topmost_scrollback_row = $term->top_row
1161 1342
1162Return various integers describing terminal characteristics. 1343Return various integers describing terminal characteristics.
1163 1344
1164=item $x_display = $term->display_id 1345=item $x_display = $term->display_id
1165 1346
1191=item $modifiermask = $term->ModNumLockMask 1372=item $modifiermask = $term->ModNumLockMask
1192 1373
1193Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1374Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1194AltGr), the meta key (often Alt) and the num lock key, if applicable. 1375AltGr), the meta key (often Alt) and the num lock key, if applicable.
1195 1376
1377=item $screen = $term->current_screen
1378
1379Returns the currently displayed screen (0 primary, 1 secondary).
1380
1196=item $view_start = $term->view_start ([$newvalue]) 1381=item $view_start = $term->view_start ([$newvalue])
1197 1382
1198Returns the negative row number of the topmost line. Minimum value is 1383Returns the row number of the topmost displayed line. Maximum value is
1199C<0>, which displays the normal terminal contents. Larger values scroll 1384C<0>, which displays the normal terminal contents. Lower values scroll
1200this many lines into the scrollback buffer. 1385this many lines into the scrollback buffer.
1201 1386
1202=item $term->want_refresh 1387=item $term->want_refresh
1203 1388
1204Requests a screen refresh. At the next opportunity, rxvt-unicode will 1389Requests a screen refresh. At the next opportunity, rxvt-unicode will
1218If C<$new_text> is specified, it will replace characters in the current 1403If C<$new_text> is specified, it will replace characters in the current
1219line, starting at column C<$start_col> (default C<0>), which is useful 1404line, starting at column C<$start_col> (default C<0>), which is useful
1220to replace only parts of a line. The font index in the rendition will 1405to replace only parts of a line. The font index in the rendition will
1221automatically be updated. 1406automatically be updated.
1222 1407
1223C<$text> is in a special encoding: tabs and wide characters that use more 1408C<$text> is in a special encoding: tabs and wide characters that use
1224than one cell when displayed are padded with urxvt::NOCHAR characters 1409more than one cell when displayed are padded with C<$urxvt::NOCHAR>
1225(C<chr 65535>). Characters with combining characters and other characters 1410characters. Characters with combining characters and other characters that
1226that do not fit into the normal tetx encoding will be replaced with 1411do not fit into the normal tetx encoding will be replaced with characters
1227characters in the private use area. 1412in the private use area.
1228 1413
1229You have to obey this encoding when changing text. The advantage is 1414You have to obey this encoding when changing text. The advantage is
1230that C<substr> and similar functions work on screen cells and not on 1415that C<substr> and similar functions work on screen cells and not on
1231characters. 1416characters.
1232 1417
1407 1592
1408Calls XUngrab for the most recent grab. Is called automatically on 1593Calls XUngrab for the most recent grab. Is called automatically on
1409evaluation errors, as it is better to lose the grab in the error case as 1594evaluation errors, as it is better to lose the grab in the error case as
1410the session. 1595the session.
1411 1596
1597=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1598
1599=item $atom_name = $term->XGetAtomName ($atom)
1600
1601=item @atoms = $term->XListProperties ($window)
1602
1603=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1604
1605=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1606
1607=item $term->XDeleteProperty ($window, $property)
1608
1609=item $window = $term->DefaultRootWindow
1610
1611=item $term->XReparentWindow ($window, $parent, [$x, $y])
1612
1613=item $term->XMapWindow ($window)
1614
1615=item $term->XUnmapWindow ($window)
1616
1617=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1618
1619=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1620
1621=item $term->XChangeInput ($window, $add_events[, $del_events])
1622
1623Various X or X-related functions. The C<$term> object only serves as
1624the source of the display, otherwise those functions map more-or-less
1625directory onto the X functions of the same name.
1626
1412=back 1627=back
1413 1628
1414=cut 1629=cut
1415 1630
1416package urxvt::popup; 1631package urxvt::popup;
1517 my $env = $self->{term}->env; 1732 my $env = $self->{term}->env;
1518 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. 1733 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1519 delete $env->{LC_ALL}; 1734 delete $env->{LC_ALL};
1520 $env->{LC_CTYPE} = $self->{term}->locale; 1735 $env->{LC_CTYPE} = $self->{term}->locale;
1521 1736
1522 urxvt::term->new ($env, $self->{term}->resource ("name"), 1737 urxvt::term->new ($env, "popup",
1523 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1738 "--perl-lib" => "", "--perl-ext-common" => "",
1739 "-pty-fd" => -1, "-sl" => 0,
1740 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1524 "--transient-for" => $self->{term}->parent, 1741 "--transient-for" => $self->{term}->parent,
1525 "-display" => $self->{term}->display_id, 1742 "-display" => $self->{term}->display_id,
1526 "-pe" => "urxvt-popup") 1743 "-pe" => "urxvt-popup")
1527 or die "unable to create popup window\n"; 1744 or die "unable to create popup window\n";
1528} 1745}
1533 delete $self->{term}{_destroy}{$self}; 1750 delete $self->{term}{_destroy}{$self};
1534 $self->{term}->ungrab; 1751 $self->{term}->ungrab;
1535} 1752}
1536 1753
1537=back 1754=back
1755
1756=cut
1757
1758package urxvt::watcher;
1759
1760@urxvt::timer::ISA = __PACKAGE__;
1761@urxvt::iow::ISA = __PACKAGE__;
1762@urxvt::pw::ISA = __PACKAGE__;
1763@urxvt::iw::ISA = __PACKAGE__;
1538 1764
1539=head2 The C<urxvt::timer> Class 1765=head2 The C<urxvt::timer> Class
1540 1766
1541This class implements timer watchers/events. Time is represented as a 1767This class implements timer watchers/events. Time is represented as a
1542fractional number of seconds since the epoch. Example: 1768fractional number of seconds since the epoch. Example:
1580Start the timer. 1806Start the timer.
1581 1807
1582=item $timer = $timer->start ($tstamp) 1808=item $timer = $timer->start ($tstamp)
1583 1809
1584Set the event trigger time to C<$tstamp> and start the timer. 1810Set the event trigger time to C<$tstamp> and start the timer.
1811
1812=item $timer = $timer->after ($delay)
1813
1814Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1585 1815
1586=item $timer = $timer->stop 1816=item $timer = $timer->stop
1587 1817
1588Stop the timer. 1818Stop the timer.
1589 1819
1636 1866
1637Stop watching for events on the given filehandle. 1867Stop watching for events on the given filehandle.
1638 1868
1639=back 1869=back
1640 1870
1871=head2 The C<urxvt::iw> Class
1872
1873This class implements idle watchers, that get called automatically when
1874the process is idle. They should return as fast as possible, after doing
1875some useful work.
1876
1877=over 4
1878
1879=item $iw = new urxvt::iw
1880
1881Create a new idle watcher object in stopped state.
1882
1883=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1884
1885Set the callback to be called when the watcher triggers.
1886
1887=item $timer = $timer->start
1888
1889Start the watcher.
1890
1891=item $timer = $timer->stop
1892
1893Stop the watcher.
1894
1895=back
1896
1897=head2 The C<urxvt::pw> Class
1898
1899This class implements process watchers. They create an event whenever a
1900process exits, after which they stop automatically.
1901
1902 my $pid = fork;
1903 ...
1904 $term->{pw} = urxvt::pw
1905 ->new
1906 ->start ($pid)
1907 ->cb (sub {
1908 my ($pw, $exit_status) = @_;
1909 ...
1910 });
1911
1912=over 4
1913
1914=item $pw = new urxvt::pw
1915
1916Create a new process watcher in stopped state.
1917
1918=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1919
1920Set the callback to be called when the timer triggers.
1921
1922=item $pw = $timer->start ($pid)
1923
1924Tells the wqtcher to start watching for process C<$pid>.
1925
1926=item $pw = $pw->stop
1927
1928Stop the watcher.
1929
1930=back
1931
1641=head1 ENVIRONMENT 1932=head1 ENVIRONMENT
1642 1933
1643=head2 URXVT_PERL_VERBOSITY 1934=head2 URXVT_PERL_VERBOSITY
1644 1935
1645This variable controls the verbosity level of the perl extension. Higher 1936This variable controls the verbosity level of the perl extension. Higher

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