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Revision 1.91 by root, Fri Jan 13 01:09:37 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:$2\\x0d/
131 154
132Of course, this can be modified to suit your needs and your editor :) 155Of course, this can be modified to suit your needs and your editor :)
133 156
134To expand the example above to typical perl error messages ("XXX at 157To expand the example above to typical perl error messages ("XXX at
135FILENAME line YYY."), you need a slightly more elaborate solution: 158FILENAME line YYY."), you need a slightly more elaborate solution:
136 159
137 URxvt.selection.pattern-0: ( at .*? line \\d+\\.) 160 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
138 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)\\.$/\x1b:e \\Q$1\E\\x0d:$2\\x0d/ 161 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
139 162
140The first line tells the selection code to treat the unchanging part of 163The first line tells the selection code to treat the unchanging part of
141every error message as a selection pattern, and the second line transforms 164every error message as a selection pattern, and the second line transforms
142the message into vi commands to load the file. 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.
143 191
144=item mark-urls 192=item mark-urls
145 193
146Uses 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
147make them clickable. When middle-clicked, the program specified in the 195make them clickable. When middle-clicked, the program specified in the
148resource C<urlLauncher> (default C<x-www-browser>) will be started with 196resource C<urlLauncher> (default C<x-www-browser>) will be started with
149the URL as first argument. 197the URL as first argument.
150 198
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
151=item block-graphics-to-ascii 207=item block-graphics-to-ascii
152 208
153A 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,
154by replacing all line-drawing characters (U+2500 .. U+259F) by a 210by replacing all line-drawing characters (U+2500 .. U+259F) by a
155similar-looking ascii character. 211similar-looking ascii character.
161=item example-refresh-hooks 217=item example-refresh-hooks
162 218
163Displays 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
164window. Illustrates overwriting the refresh callbacks to create your own 220window. Illustrates overwriting the refresh callbacks to create your own
165overlays 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/%
166 251
167=back 252=back
168 253
169=head1 API DOCUMENTATION 254=head1 API DOCUMENTATION
170 255
243called whenever the relevant event happens. 328called whenever the relevant event happens.
244 329
245The 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
246the in the C<Extension Objects> section. 331the in the C<Extension Objects> section.
247 332
248B<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
249event 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
250skipped, and the relevant action might not be carried out by the C++ code. 335relevant action might not be carried out by the C++ code.
251 336
252I<< When in doubt, return a false value (preferably C<()>). >> 337I<< When in doubt, return a false value (preferably C<()>). >>
253 338
254=over 4 339=over 4
255 340
256=item on_init $term 341=item on_init $term
257 342
258Called after a new terminal object has been initialized, but before 343Called after a new terminal object has been initialized, but before
259windows 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
260call or deliver senseless data, as terminal size and other characteristics 345call or deliver senseless data, as terminal size and other characteristics
261have not yet been determined. You can safely query and change resources, 346have not yet been determined. You can safely query and change resources
262though. 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.
263 360
264=item on_reset $term 361=item on_reset $term
265 362
266Called 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
267control 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
268variables. 365variables.
269 366
270=item on_start $term 367=item on_child_start $term, $pid
271 368
272Called at the very end of initialisation of a new terminal, just before 369Called just after the child process has been C<fork>ed.
273returning 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>.
274 375
275=item on_sel_make $term, $eventtime 376=item on_sel_make $term, $eventtime
276 377
277Called 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
278selection 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
371 472
372Called whenever the user presses a key combination that has a 473Called whenever the user presses a key combination that has a
373C<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>
374resource in the @@RXVT_NAME@@(1) manpage). 475resource in the @@RXVT_NAME@@(1) manpage).
375 476
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
376=item on_focus_in $term 483=item on_focus_in $term
377 484
378Called whenever the window gets the keyboard focus, before rxvt-unicode 485Called whenever the window gets the keyboard focus, before rxvt-unicode
379does focus in processing. 486does focus in processing.
380 487
381=item on_focus_out $term 488=item on_focus_out $term
382 489
383Called wheneever the window loses keyboard focus, before rxvt-unicode does 490Called wheneever the window loses keyboard focus, before rxvt-unicode does
384focus out processing. 491focus out processing.
385 492
493=item on_configure_notify $term, $event
494
495=item on_property_notify $term, $event
496
386=item on_key_press $term, $event, $keysym, $octets 497=item on_key_press $term, $event, $keysym, $octets
387 498
388=item on_key_release $term, $event, $keysym 499=item on_key_release $term, $event, $keysym
389 500
390=item on_button_press $term, $event 501=item on_button_press $term, $event
399 510
400Called whenever the corresponding X event is received for the terminal If 511Called whenever the corresponding X event is received for the terminal If
401the 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.
402 513
403The 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
404manpage), 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
405and column under the mouse cursor. 516(real, not screen-based) row and column under the mouse cursor.
406 517
407C<on_key_press> additionally receives the string rxvt-unicode would 518C<on_key_press> additionally receives the string rxvt-unicode would
408output, if any, in locale-specific encoding. 519output, if any, in locale-specific encoding.
409 520
410subwindow. 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).
411 531
412=back 532=back
413 533
414=cut 534=cut
415 535
421use Scalar::Util (); 541use Scalar::Util ();
422use List::Util (); 542use List::Util ();
423 543
424our $VERSION = 1; 544our $VERSION = 1;
425our $TERM; 545our $TERM;
546our @TERM_INIT;
547our @TERM_EXT;
426our @HOOKNAME; 548our @HOOKNAME;
427our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 549our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
428our %OPTION; 550our %OPTION;
429 551
430our $LIBDIR; 552our $LIBDIR;
431our $RESNAME; 553our $RESNAME;
432our $RESCLASS; 554our $RESCLASS;
433our $RXVTNAME; 555our $RXVTNAME;
434 556
557our $NOCHAR = chr 0xfffe;
558
435=head2 Variables in the C<urxvt> Package 559=head2 Variables in the C<urxvt> Package
436 560
437=over 4 561=over 4
438 562
439=item $urxvt::LIBDIR 563=item $urxvt::LIBDIR
451 575
452=item $urxvt::TERM 576=item $urxvt::TERM
453 577
454The current terminal. This variable stores the current C<urxvt::term> 578The current terminal. This variable stores the current C<urxvt::term>
455object, 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>.
456 596
457=back 597=back
458 598
459=head2 Functions in the C<urxvt> Package 599=head2 Functions in the C<urxvt> Package
460 600
475Using 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
476correct place, e.g. on stderr of the connecting urxvtc client. 616correct place, e.g. on stderr of the connecting urxvtc client.
477 617
478Messages have a size limit of 1023 bytes currently. 618Messages have a size limit of 1023 bytes currently.
479 619
480=item $is_safe = urxvt::safe
481
482Returns true when it is safe to do potentially unsafe things, such as
483evaluating perl code specified by the user. This is true when urxvt was
484started setuid or setgid.
485
486=item $time = urxvt::NOW 620=item $time = urxvt::NOW
487 621
488Returns the "current time" (as per the event loop). 622Returns the "current time" (as per the event loop).
489 623
490=item urxvt::CurrentTime 624=item urxvt::CurrentTime
491 625
492=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 626=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
493Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 627Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
494Button4Mask, 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
495 645
496Various constants for use in X calls and event processing. 646Various constants for use in X calls and event processing.
497 647
498=back 648=back
499 649
550=back 700=back
551 701
552=cut 702=cut
553 703
554BEGIN { 704BEGIN {
555 urxvt->bootstrap;
556
557 # overwrite perl's warn 705 # overwrite perl's warn
558 *CORE::GLOBAL::warn = sub { 706 *CORE::GLOBAL::warn = sub {
559 my $msg = join "", @_; 707 my $msg = join "", @_;
560 $msg .= "\n" 708 $msg .= "\n"
561 unless $msg =~ /\n$/; 709 unless $msg =~ /\n$/;
562 urxvt::warn ($msg); 710 urxvt::warn ($msg);
563 }; 711 };
564
565 # %ENV is the original startup environment
566 delete $ENV{IFS};
567 delete $ENV{CDPATH};
568 delete $ENV{BASH_ENV};
569 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
570} 712}
571 713
572my @hook_count;
573my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 714my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
574 715
575sub verbose { 716sub verbose {
576 my ($level, $msg) = @_; 717 my ($level, $msg) = @_;
577 warn "$msg\n" if $level <= $verbosity; 718 warn "$msg\n" if $level <= $verbosity;
578} 719}
579 720
580my $extension_pkg = "extension0000";
581my %extension_pkg; 721my %extension_pkg;
582 722
583# load a single script into its own package, once only 723# load a single script into its own package, once only
584sub extension_package($) { 724sub extension_package($) {
585 my ($path) = @_; 725 my ($path) = @_;
586 726
587 $extension_pkg{$path} ||= do { 727 $extension_pkg{$path} ||= do {
588 my $pkg = "urxvt::" . ($extension_pkg++); 728 $path =~ /([^\/\\]+)$/;
729 my $pkg = $1;
730 $pkg =~ s/[^[:word:]]/_/g;
731 $pkg = "urxvt::ext::$pkg";
589 732
590 verbose 3, "loading extension '$path' into package '$pkg'"; 733 verbose 3, "loading extension '$path' into package '$pkg'";
591 734
592 open my $fh, "<:raw", $path 735 open my $fh, "<:raw", $path
593 or die "$path: $!"; 736 or die "$path: $!";
594 737
595 my $source = untaint 738 my $source =
596 "package $pkg; use strict; use utf8;\n" 739 "package $pkg; use strict; use utf8;\n"
597 . "use base urxvt::term::extension::;\n"
598 . "#line 1 \"$path\"\n{\n" 740 . "#line 1 \"$path\"\n{\n"
599 . (do { local $/; <$fh> }) 741 . (do { local $/; <$fh> })
600 . "\n};\n1"; 742 . "\n};\n1";
601 743
602 eval $source 744 eval $source
616 if ($htype == 0) { # INIT 758 if ($htype == 0) { # INIT
617 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 759 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
618 760
619 my %ext_arg; 761 my %ext_arg;
620 762
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
621 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 772 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
622 if ($_ eq "default") { 773 if ($_ eq "default") {
623 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 774 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
624 } elsif (/^-(.*)$/) { 775 } elsif (/^-(.*)$/) {
625 delete $ext_arg{$1}; 776 delete $ext_arg{$1};
626 } elsif (/^([^<]+)<(.*)>$/) { 777 } elsif (/^([^<]+)<(.*)>$/) {
651 if $verbosity >= 10; 802 if $verbosity >= 10;
652 803
653 keys %$cb; 804 keys %$cb;
654 805
655 while (my ($pkg, $cb) = each %$cb) { 806 while (my ($pkg, $cb) = each %$cb) {
656 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 807 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
657 and last; 808 $retval ||= $retval_;
658 809
659 if ($@) { 810 if ($@) {
660 $TERM->ungrab; # better to lose the grab than the session 811 $TERM->ungrab; # better to lose the grab than the session
661 warn $@; 812 warn $@;
662 } 813 }
665 verbose 11, "$HOOKNAME[$htype] returning <$retval>" 816 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
666 if $verbosity >= 11; 817 if $verbosity >= 11;
667 } 818 }
668 819
669 if ($htype == 1) { # DESTROY 820 if ($htype == 1) { # DESTROY
670 if (my $hook = delete $TERM->{_hook}) {
671 for my $htype (0..$#$hook) {
672 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
673 or set_should_invoke $htype, 0;
674 }
675 }
676
677 # clear package objects 821 # clear package objects
678 %$_ = () for values %{ $TERM->{_pkg} }; 822 %$_ = () for values %{ $TERM->{_pkg} };
679 823
680 # clear package 824 # clear package
681 %$TERM = (); 825 %$TERM = ();
682 } 826 }
683 827
684 $retval 828 $retval
685}
686
687sub exec_async(@) {
688 my $pid = fork;
689
690 return
691 if !defined $pid or $pid;
692
693 %ENV = %{ $TERM->env };
694
695 exec @_;
696 _exit 255;
697} 829}
698 830
699# urxvt::term::extension 831# urxvt::term::extension
700 832
701package urxvt::term::extension; 833package urxvt::term::extension;
707 while (my ($name, $cb) = each %hook) { 839 while (my ($name, $cb) = each %hook) {
708 my $htype = $HOOKTYPE{uc $name}; 840 my $htype = $HOOKTYPE{uc $name};
709 defined $htype 841 defined $htype
710 or Carp::croak "unsupported hook type '$name'"; 842 or Carp::croak "unsupported hook type '$name'";
711 843
844 $self->set_should_invoke ($htype, +1)
712 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 845 unless exists $self->{term}{_hook}[$htype]{$pkg};
713 $hook_count[$htype]++
714 or urxvt::set_should_invoke $htype, 1;
715 }
716 846
717 $self->{term}{_hook}[$htype]{$pkg} = $cb; 847 $self->{term}{_hook}[$htype]{$pkg} = $cb;
718 } 848 }
719} 849}
720 850
725 for my $name (@hook) { 855 for my $name (@hook) {
726 my $htype = $HOOKTYPE{uc $name}; 856 my $htype = $HOOKTYPE{uc $name};
727 defined $htype 857 defined $htype
728 or Carp::croak "unsupported hook type '$name'"; 858 or Carp::croak "unsupported hook type '$name'";
729 859
860 $self->set_should_invoke ($htype, -1)
730 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 861 if delete $self->{term}{_hook}[$htype]{$pkg};
731 --$hook_count[$htype]
732 or urxvt::set_should_invoke $htype, 0;
733 }
734 } 862 }
735} 863}
736 864
737our $AUTOLOAD; 865our $AUTOLOAD;
738 866
844# find on_xxx subs in the package and register them 972# find on_xxx subs in the package and register them
845# as hooks 973# as hooks
846sub register_package { 974sub register_package {
847 my ($self, $pkg, $argv) = @_; 975 my ($self, $pkg, $argv) = @_;
848 976
977 no strict 'refs';
978
979 urxvt::verbose 6, "register package $pkg to $self";
980
981 @{"$pkg\::ISA"} = urxvt::term::extension::;
982
849 my $proxy = bless { 983 my $proxy = bless {
850 _pkg => $pkg, 984 _pkg => $pkg,
851 argv => $argv, 985 argv => $argv,
852 }, $pkg; 986 }, $pkg;
853 Scalar::Util::weaken ($proxy->{term} = $self); 987 Scalar::Util::weaken ($proxy->{term} = $self);
884 1018
885Destroy the terminal object (close the window, free resources 1019Destroy the terminal object (close the window, free resources
886etc.). 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
887watchers (timers, io watchers) are still active. 1021watchers (timers, io watchers) are still active.
888 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
889=item $isset = $term->option ($optval[, $set]) 1048=item $isset = $term->option ($optval[, $set])
890 1049
891Returns true if the option specified by C<$optval> is enabled, and 1050Returns true if the option specified by C<$optval> is enabled, and
892optionally 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
893C<%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.
895Here 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
896source file F</src/optinc.h> to see the actual list: 1055source file F</src/optinc.h> to see the actual list:
897 1056
898 borderLess console cursorBlink cursorUnderline hold iconic insecure 1057 borderLess console cursorBlink cursorUnderline hold iconic insecure
899 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1058 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
900 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1059 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
901 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1060 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
902 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1061 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
903 tripleclickwords utmpInhibit visualBell 1062 transparent tripleclickwords utmpInhibit visualBell
904 1063
905=item $value = $term->resource ($name[, $newval]) 1064=item $value = $term->resource ($name[, $newval])
906 1065
907Returns the current resource value associated with a given name and 1066Returns the current resource value associated with a given name and
908optionally 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>
925 1084
926 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1085 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
927 borderLess color cursorBlink cursorUnderline cutchars delete_key 1086 borderLess color cursorBlink cursorUnderline cutchars delete_key
928 display_name embed ext_bwidth fade font geometry hold iconName 1087 display_name embed ext_bwidth fade font geometry hold iconName
929 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1088 imFont imLocale inputMethod insecure int_bwidth intensityStyles
930 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1089 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
931 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1090 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
932 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1091 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
933 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1092 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
934 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1093 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
935 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1094 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
936 shade term_name title transparent transparent_all tripleclickwords 1095 secondaryScreen secondaryScroll selectstyle shade term_name title
937 utmpInhibit visualBell 1096 transient_for transparent transparent_all tripleclickwords utmpInhibit
1097 visualBell
938 1098
939=cut 1099=cut
940 1100
941sub resource($$;$) { 1101sub resource($$;$) {
942 my ($self, $name) = (shift, shift); 1102 my ($self, $name) = (shift, shift);
1116 1276
1117Normally 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
1118confused by changes in cursor position or scrolling. Its useful inside a 1278confused by changes in cursor position or scrolling. Its useful inside a
1119C<on_add_lines> hook, though. 1279C<on_add_lines> hook, though.
1120 1280
1281=item $term->scr_change_screen ($screen)
1282
1283Switch to given screen - 0 primary, 1 secondary.
1284
1121=item $term->cmd_parse ($octets) 1285=item $term->cmd_parse ($octets)
1122 1286
1123Similar 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
1124locale-specific encoding of the terminal and can contain command sequences 1288locale-specific encoding of the terminal and can contain command sequences
1125(escape codes) that will be interpreted. 1289(escape codes) that will be interpreted.
1143 1307
1144=item $windowid = $term->vt 1308=item $windowid = $term->vt
1145 1309
1146Return the window id of the terminal window. 1310Return the window id of the terminal window.
1147 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
1148=item $window_width = $term->width 1319=item $window_width = $term->width
1149 1320
1150=item $window_height = $term->height 1321=item $window_height = $term->height
1151 1322
1152=item $font_width = $term->fwidth 1323=item $font_width = $term->fwidth
1165 1336
1166=item $max_scrollback = $term->saveLines 1337=item $max_scrollback = $term->saveLines
1167 1338
1168=item $nrow_plus_saveLines = $term->total_rows 1339=item $nrow_plus_saveLines = $term->total_rows
1169 1340
1170=item $lines_in_scrollback = $term->nsaved 1341=item $topmost_scrollback_row = $term->top_row
1171 1342
1172Return various integers describing terminal characteristics. 1343Return various integers describing terminal characteristics.
1173 1344
1174=item $x_display = $term->display_id 1345=item $x_display = $term->display_id
1175 1346
1201=item $modifiermask = $term->ModNumLockMask 1372=item $modifiermask = $term->ModNumLockMask
1202 1373
1203Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1374Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1204AltGr), 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.
1205 1376
1377=item $screen = $term->current_screen
1378
1379Returns the currently displayed screen (0 primary, 1 secondary).
1380
1206=item $view_start = $term->view_start ([$newvalue]) 1381=item $view_start = $term->view_start ([$newvalue])
1207 1382
1208Returns the negative row number of the topmost line. Minimum value is 1383Returns the row number of the topmost displayed line. Maximum value is
1209C<0>, which displays the normal terminal contents. Larger values scroll 1384C<0>, which displays the normal terminal contents. Lower values scroll
1210this many lines into the scrollback buffer. 1385this many lines into the scrollback buffer.
1211 1386
1212=item $term->want_refresh 1387=item $term->want_refresh
1213 1388
1214Requests a screen refresh. At the next opportunity, rxvt-unicode will 1389Requests a screen refresh. At the next opportunity, rxvt-unicode will
1228If C<$new_text> is specified, it will replace characters in the current 1403If C<$new_text> is specified, it will replace characters in the current
1229line, starting at column C<$start_col> (default C<0>), which is useful 1404line, starting at column C<$start_col> (default C<0>), which is useful
1230to replace only parts of a line. The font index in the rendition will 1405to replace only parts of a line. The font index in the rendition will
1231automatically be updated. 1406automatically be updated.
1232 1407
1233C<$text> is in a special encoding: tabs and wide characters that use more 1408C<$text> is in a special encoding: tabs and wide characters that use
1234than one cell when displayed are padded with urxvt::NOCHAR characters 1409more than one cell when displayed are padded with C<$urxvt::NOCHAR>
1235(C<chr 65535>). Characters with combining characters and other characters 1410characters. Characters with combining characters and other characters that
1236that 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
1237characters in the private use area. 1412in the private use area.
1238 1413
1239You have to obey this encoding when changing text. The advantage is 1414You have to obey this encoding when changing text. The advantage is
1240that 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
1241characters. 1416characters.
1242 1417
1417 1592
1418Calls XUngrab for the most recent grab. Is called automatically on 1593Calls XUngrab for the most recent grab. Is called automatically on
1419evaluation 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
1420the session. 1595the session.
1421 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
1422=back 1627=back
1423 1628
1424=cut 1629=cut
1425 1630
1426package urxvt::popup; 1631package urxvt::popup;
1527 my $env = $self->{term}->env; 1732 my $env = $self->{term}->env;
1528 # 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.
1529 delete $env->{LC_ALL}; 1734 delete $env->{LC_ALL};
1530 $env->{LC_CTYPE} = $self->{term}->locale; 1735 $env->{LC_CTYPE} = $self->{term}->locale;
1531 1736
1532 urxvt::term->new ($env, $self->{term}->resource ("name"), 1737 urxvt::term->new ($env, "popup",
1533 "--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",
1534 "--transient-for" => $self->{term}->parent, 1741 "--transient-for" => $self->{term}->parent,
1535 "-display" => $self->{term}->display_id, 1742 "-display" => $self->{term}->display_id,
1536 "-pe" => "urxvt-popup") 1743 "-pe" => "urxvt-popup")
1537 or die "unable to create popup window\n"; 1744 or die "unable to create popup window\n";
1538} 1745}
1543 delete $self->{term}{_destroy}{$self}; 1750 delete $self->{term}{_destroy}{$self};
1544 $self->{term}->ungrab; 1751 $self->{term}->ungrab;
1545} 1752}
1546 1753
1547=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__;
1548 1764
1549=head2 The C<urxvt::timer> Class 1765=head2 The C<urxvt::timer> Class
1550 1766
1551This class implements timer watchers/events. Time is represented as a 1767This class implements timer watchers/events. Time is represented as a
1552fractional number of seconds since the epoch. Example: 1768fractional number of seconds since the epoch. Example:
1590Start the timer. 1806Start the timer.
1591 1807
1592=item $timer = $timer->start ($tstamp) 1808=item $timer = $timer->start ($tstamp)
1593 1809
1594Set 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>.
1595 1815
1596=item $timer = $timer->stop 1816=item $timer = $timer->stop
1597 1817
1598Stop the timer. 1818Stop the timer.
1599 1819
1646 1866
1647Stop watching for events on the given filehandle. 1867Stop watching for events on the given filehandle.
1648 1868
1649=back 1869=back
1650 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
1651=head1 ENVIRONMENT 1932=head1 ENVIRONMENT
1652 1933
1653=head2 URXVT_PERL_VERBOSITY 1934=head2 URXVT_PERL_VERBOSITY
1654 1935
1655This 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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