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Revision 1.90 by root, Thu Jan 12 12:15:10 2006 UTC vs.
Revision 1.125 by root, Sun Jan 22 20:39:47 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
104bottom. 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
105was 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
106additionally stores the first match in the current line into the primary 129additionally stores the first match in the current line into the primary
107selection. 130selection.
108 131
132=item readline (enabled by default)
133
134A support package that tries to make editing with readline easier. At the
135moment, it reacts to clicking with the left mouse button by trying to
136move the text cursor to this position. It does so by generating as many
137cursor-left or cursor-right keypresses as required (the this only works
138for programs that correctly support wide characters).
139
140To avoid too many false positives, this is only done when:
141
142=over 4
143
144=item - the tty is in ICANON state.
145
146=item - the text cursor is visible.
147
148=item - the primary screen is currently being displayed.
149
150=item - the mouse is on the same (multi-row-) line as the text cursor.
151
152=back
153
154The normal selection mechanism isn't disabled, so quick successive clicks
155might interfere with selection creation in harmless ways.
156
109=item selection-autotransform 157=item selection-autotransform
110 158
111This selection allows you to do automatic transforms on a selection 159This selection allows you to do automatic transforms on a selection
112whenever a selection is made. 160whenever a selection is made.
113 161
120 168
121For example, the following will transform selections of the form 169For example, the following will transform selections of the form
122C<filename:number>, often seen in compiler messages, into C<vi +$filename 170C<filename:number>, often seen in compiler messages, into C<vi +$filename
123$word>: 171$word>:
124 172
125 URxvt.selection-autotransform.0: s/^(\\S+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/ 173 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
126 174
127And this example matches the same,but replaces it with vi-commands you can 175And this example matches the same,but replaces it with vi-commands you can
128paste directly into your (vi :) editor: 176paste directly into your (vi :) editor:
129 177
130 URxvt.selection-autotransform.0: s/^(S+):(d+):?$/\\x1b:e \\Q$1\\E\\x0d:$2\\x0d/ 178 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
131 179
132Of course, this can be modified to suit your needs and your editor :) 180Of course, this can be modified to suit your needs and your editor :)
181
182To expand the example above to typical perl error messages ("XXX at
183FILENAME line YYY."), you need a slightly more elaborate solution:
184
185 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
186 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
187
188The first line tells the selection code to treat the unchanging part of
189every error message as a selection pattern, and the second line transforms
190the message into vi commands to load the file.
191
192=item tabbed
193
194This transforms the terminal into a tabbar with additional terminals, that
195is, it implements what is commonly refered to as "tabbed terminal". The topmost line
196displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
197button per tab.
198
199Clicking a button will activate that tab. Pressing B<Shift-Left> and
200B<Shift-Right> will switch to the tab left or right of the current one,
201while B<Shift-Down> creates a new tab.
133 202
134=item mark-urls 203=item mark-urls
135 204
136Uses per-line display filtering (C<on_line_update>) to underline urls and 205Uses per-line display filtering (C<on_line_update>) to underline urls and
137make them clickable. When middle-clicked, the program specified in the 206make them clickable. When middle-clicked, the program specified in the
138resource C<urlLauncher> (default C<x-www-browser>) will be started with 207resource C<urlLauncher> (default C<x-www-browser>) will be started with
139the URL as first argument. 208the URL as first argument.
140 209
210=item automove-background
211
212This is basically a one-line extension that dynamically changes the background pixmap offset
213to the window position, in effect creating the same effect as pseudo transparency with
214a custom pixmap. No scaling is supported in this mode. Exmaple:
215
216 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
217
141=item block-graphics-to-ascii 218=item block-graphics-to-ascii
142 219
143A not very useful example of filtering all text output to the terminal, 220A not very useful example of filtering all text output to the terminal,
144by replacing all line-drawing characters (U+2500 .. U+259F) by a 221by replacing all line-drawing characters (U+2500 .. U+259F) by a
145similar-looking ascii character. 222similar-looking ascii character.
151=item example-refresh-hooks 228=item example-refresh-hooks
152 229
153Displays a very simple digital clock in the upper right corner of the 230Displays a very simple digital clock in the upper right corner of the
154window. Illustrates overwriting the refresh callbacks to create your own 231window. Illustrates overwriting the refresh callbacks to create your own
155overlays or changes. 232overlays or changes.
233
234=item selection-pastebin
235
236This is a little rarely useful extension that Uploads the selection as
237textfile to a remote site (or does other things). (The implementation is
238not currently secure for use in a multiuser environment as it writes to
239F</tmp> directly.).
240
241It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
242i.e.
243
244 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
245
246Pressing this combination runs a command with C<%> replaced by the name of
247the textfile. This command can be set via a resource:
248
249 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
250
251And the default is likely not useful to anybody but the few people around
252here :)
253
254The name of the textfile is the hex encoded md5 sum of the selection, so
255the same content should lead to the same filename.
256
257After a successful upload the selection will be replaced by the text given
258in the C<selection-pastebin-url> resource (again, the % is the placeholder
259for the filename):
260
261 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
156 262
157=back 263=back
158 264
159=head1 API DOCUMENTATION 265=head1 API DOCUMENTATION
160 266
233called whenever the relevant event happens. 339called whenever the relevant event happens.
234 340
235The first argument passed to them is an extension oject as described in 341The first argument passed to them is an extension oject as described in
236the in the C<Extension Objects> section. 342the in the C<Extension Objects> section.
237 343
238B<All> of these hooks must return a boolean value. If it is true, then the 344B<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 345hooks 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. 346relevant action might not be carried out by the C++ code.
241 347
242I<< When in doubt, return a false value (preferably C<()>). >> 348I<< When in doubt, return a false value (preferably C<()>). >>
243 349
244=over 4 350=over 4
245 351
246=item on_init $term 352=item on_init $term
247 353
248Called after a new terminal object has been initialized, but before 354Called after a new terminal object has been initialized, but before
249windows are created or the command gets run. Most methods are unsafe to 355windows are created or the command gets run. Most methods are unsafe to
250call or deliver senseless data, as terminal size and other characteristics 356call or deliver senseless data, as terminal size and other characteristics
251have not yet been determined. You can safely query and change resources, 357have not yet been determined. You can safely query and change resources
252though. 358and options, though. For many purposes the C<on_start> hook is a better
359place.
360
361=item on_start $term
362
363Called at the very end of initialisation of a new terminal, just before
364trying to map (display) the toplevel and returning to the mainloop.
365
366=item on_destroy $term
367
368Called whenever something tries to destroy terminal, before doing anything
369yet. If this hook returns true, then destruction is skipped, but this is
370rarely a good idea.
253 371
254=item on_reset $term 372=item on_reset $term
255 373
256Called after the screen is "reset" for any reason, such as resizing or 374Called 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 375control sequences. Here is where you can react on changes to size-related
258variables. 376variables.
259 377
260=item on_start $term 378=item on_child_start $term, $pid
261 379
262Called at the very end of initialisation of a new terminal, just before 380Called just after the child process has been C<fork>ed.
263returning to the mainloop. 381
382=item on_child_exit $term, $status
383
384Called just after the child process has exited. C<$status> is the status
385from C<waitpid>.
264 386
265=item on_sel_make $term, $eventtime 387=item on_sel_make $term, $eventtime
266 388
267Called whenever a selection has been made by the user, but before the 389Called 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 390selection text is copied, so changes to the beginning, end or type of the
361 483
362Called whenever the user presses a key combination that has a 484Called whenever the user presses a key combination that has a
363C<perl:string> action bound to it (see description of the B<keysym> 485C<perl:string> action bound to it (see description of the B<keysym>
364resource in the @@RXVT_NAME@@(1) manpage). 486resource in the @@RXVT_NAME@@(1) manpage).
365 487
488=item on_x_event $term, $event
489
490Called on every X event received on the vt window (and possibly other
491windows). Should only be used as a last resort. Most event structure
492members are not passed.
493
366=item on_focus_in $term 494=item on_focus_in $term
367 495
368Called whenever the window gets the keyboard focus, before rxvt-unicode 496Called whenever the window gets the keyboard focus, before rxvt-unicode
369does focus in processing. 497does focus in processing.
370 498
371=item on_focus_out $term 499=item on_focus_out $term
372 500
373Called wheneever the window loses keyboard focus, before rxvt-unicode does 501Called wheneever the window loses keyboard focus, before rxvt-unicode does
374focus out processing. 502focus out processing.
375 503
504=item on_configure_notify $term, $event
505
506=item on_property_notify $term, $event
507
376=item on_key_press $term, $event, $keysym, $octets 508=item on_key_press $term, $event, $keysym, $octets
377 509
378=item on_key_release $term, $event, $keysym 510=item on_key_release $term, $event, $keysym
379 511
380=item on_button_press $term, $event 512=item on_button_press $term, $event
389 521
390Called whenever the corresponding X event is received for the terminal If 522Called whenever the corresponding X event is received for the terminal If
391the hook returns true, then the even will be ignored by rxvt-unicode. 523the hook returns true, then the even will be ignored by rxvt-unicode.
392 524
393The event is a hash with most values as named by Xlib (see the XEvent 525The 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 526manpage), with the additional members C<row> and C<col>, which are the
395and column under the mouse cursor. 527(real, not screen-based) row and column under the mouse cursor.
396 528
397C<on_key_press> additionally receives the string rxvt-unicode would 529C<on_key_press> additionally receives the string rxvt-unicode would
398output, if any, in locale-specific encoding. 530output, if any, in locale-specific encoding.
399 531
400subwindow. 532subwindow.
533
534=item on_client_message $term, $event
535
536=item on_wm_protocols $term, $event
537
538=item on_wm_delete_window $term, $event
539
540Called when various types of ClientMessage events are received (all with
541format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
401 542
402=back 543=back
403 544
404=cut 545=cut
405 546
411use Scalar::Util (); 552use Scalar::Util ();
412use List::Util (); 553use List::Util ();
413 554
414our $VERSION = 1; 555our $VERSION = 1;
415our $TERM; 556our $TERM;
557our @TERM_INIT;
558our @TERM_EXT;
416our @HOOKNAME; 559our @HOOKNAME;
417our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 560our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
418our %OPTION; 561our %OPTION;
419 562
420our $LIBDIR; 563our $LIBDIR;
421our $RESNAME; 564our $RESNAME;
422our $RESCLASS; 565our $RESCLASS;
423our $RXVTNAME; 566our $RXVTNAME;
424 567
568our $NOCHAR = chr 0xffff;
569
425=head2 Variables in the C<urxvt> Package 570=head2 Variables in the C<urxvt> Package
426 571
427=over 4 572=over 4
428 573
429=item $urxvt::LIBDIR 574=item $urxvt::LIBDIR
441 586
442=item $urxvt::TERM 587=item $urxvt::TERM
443 588
444The current terminal. This variable stores the current C<urxvt::term> 589The current terminal. This variable stores the current C<urxvt::term>
445object, whenever a callback/hook is executing. 590object, whenever a callback/hook is executing.
591
592=item @urxvt::TERM_INIT
593
594All coderefs in this array will be called as methods of the next newly
595created C<urxvt::term> object (during the C<on_init> phase). The array
596gets cleared before the codereferences that were in it are being executed,
597so coderefs can push themselves onto it again if they so desire.
598
599This complements to the perl-eval commandline option, but gets executed
600first.
601
602=item @urxvt::TERM_EXT
603
604Works similar to C<@TERM_INIT>, but contains perl package/class names, which
605get registered as normal extensions after calling the hooks in C<@TERM_INIT>
606but before other extensions. Gets cleared just like C<@TERM_INIT>.
446 607
447=back 608=back
448 609
449=head2 Functions in the C<urxvt> Package 610=head2 Functions in the C<urxvt> Package
450 611
465Using this function has the advantage that its output ends up in the 626Using this function has the advantage that its output ends up in the
466correct place, e.g. on stderr of the connecting urxvtc client. 627correct place, e.g. on stderr of the connecting urxvtc client.
467 628
468Messages have a size limit of 1023 bytes currently. 629Messages have a size limit of 1023 bytes currently.
469 630
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 631=item $time = urxvt::NOW
477 632
478Returns the "current time" (as per the event loop). 633Returns the "current time" (as per the event loop).
479 634
480=item urxvt::CurrentTime 635=item urxvt::CurrentTime
481 636
482=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 637=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
483Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 638Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
484Button4Mask, Button5Mask, AnyModifier 639Button4Mask, Button5Mask, AnyModifier
640
641=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
642ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
643PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
644Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
645KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
646ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
647FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
648
649=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
650EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
651GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
652UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
653ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
654CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
655SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
485 656
486Various constants for use in X calls and event processing. 657Various constants for use in X calls and event processing.
487 658
488=back 659=back
489 660
540=back 711=back
541 712
542=cut 713=cut
543 714
544BEGIN { 715BEGIN {
545 urxvt->bootstrap;
546
547 # overwrite perl's warn 716 # overwrite perl's warn
548 *CORE::GLOBAL::warn = sub { 717 *CORE::GLOBAL::warn = sub {
549 my $msg = join "", @_; 718 my $msg = join "", @_;
550 $msg .= "\n" 719 $msg .= "\n"
551 unless $msg =~ /\n$/; 720 unless $msg =~ /\n$/;
552 urxvt::warn ($msg); 721 urxvt::warn ($msg);
553 }; 722 };
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} 723}
561 724
562my @hook_count; 725no warnings 'utf8';
726
563my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 727my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
564 728
565sub verbose { 729sub verbose {
566 my ($level, $msg) = @_; 730 my ($level, $msg) = @_;
567 warn "$msg\n" if $level <= $verbosity; 731 warn "$msg\n" if $level <= $verbosity;
568} 732}
569 733
570my $extension_pkg = "extension0000";
571my %extension_pkg; 734my %extension_pkg;
572 735
573# load a single script into its own package, once only 736# load a single script into its own package, once only
574sub extension_package($) { 737sub extension_package($) {
575 my ($path) = @_; 738 my ($path) = @_;
576 739
577 $extension_pkg{$path} ||= do { 740 $extension_pkg{$path} ||= do {
578 my $pkg = "urxvt::" . ($extension_pkg++); 741 $path =~ /([^\/\\]+)$/;
742 my $pkg = $1;
743 $pkg =~ s/[^[:word:]]/_/g;
744 $pkg = "urxvt::ext::$pkg";
579 745
580 verbose 3, "loading extension '$path' into package '$pkg'"; 746 verbose 3, "loading extension '$path' into package '$pkg'";
581 747
582 open my $fh, "<:raw", $path 748 open my $fh, "<:raw", $path
583 or die "$path: $!"; 749 or die "$path: $!";
584 750
585 my $source = untaint 751 my $source =
586 "package $pkg; use strict; use utf8;\n" 752 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
587 . "use base urxvt::term::extension::;\n"
588 . "#line 1 \"$path\"\n{\n" 753 . "#line 1 \"$path\"\n{\n"
589 . (do { local $/; <$fh> }) 754 . (do { local $/; <$fh> })
590 . "\n};\n1"; 755 . "\n};\n1";
591 756
592 eval $source 757 eval $source
606 if ($htype == 0) { # INIT 771 if ($htype == 0) { # INIT
607 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 772 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
608 773
609 my %ext_arg; 774 my %ext_arg;
610 775
776 {
777 my @init = @TERM_INIT;
778 @TERM_INIT = ();
779 $_->($TERM) for @init;
780 my @pkg = @TERM_EXT;
781 @TERM_EXT = ();
782 $TERM->register_package ($_) for @pkg;
783 }
784
611 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 785 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
612 if ($_ eq "default") { 786 if ($_ eq "default") {
613 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 787 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
614 } elsif (/^-(.*)$/) { 788 } elsif (/^-(.*)$/) {
615 delete $ext_arg{$1}; 789 delete $ext_arg{$1};
616 } elsif (/^([^<]+)<(.*)>$/) { 790 } elsif (/^([^<]+)<(.*)>$/) {
617 push @{ $ext_arg{$1} }, $2; 791 push @{ $ext_arg{$1} }, $2;
618 } else { 792 } else {
641 if $verbosity >= 10; 815 if $verbosity >= 10;
642 816
643 keys %$cb; 817 keys %$cb;
644 818
645 while (my ($pkg, $cb) = each %$cb) { 819 while (my ($pkg, $cb) = each %$cb) {
646 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 820 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
647 and last; 821 $retval ||= $retval_;
648 822
649 if ($@) { 823 if ($@) {
650 $TERM->ungrab; # better to lose the grab than the session 824 $TERM->ungrab; # better to lose the grab than the session
651 warn $@; 825 warn $@;
652 } 826 }
655 verbose 11, "$HOOKNAME[$htype] returning <$retval>" 829 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
656 if $verbosity >= 11; 830 if $verbosity >= 11;
657 } 831 }
658 832
659 if ($htype == 1) { # DESTROY 833 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 $htype, 0;
664 }
665 }
666
667 # clear package objects 834 # clear package objects
668 %$_ = () for values %{ $TERM->{_pkg} }; 835 %$_ = () for values %{ $TERM->{_pkg} };
669 836
670 # clear package 837 # clear package
671 %$TERM = (); 838 %$TERM = ();
672 } 839 }
673 840
674 $retval 841 $retval
675}
676
677sub exec_async(@) {
678 my $pid = fork;
679
680 return
681 if !defined $pid or $pid;
682
683 %ENV = %{ $TERM->env };
684
685 exec @_;
686 _exit 255;
687} 842}
688 843
689# urxvt::term::extension 844# urxvt::term::extension
690 845
691package urxvt::term::extension; 846package urxvt::term::extension;
697 while (my ($name, $cb) = each %hook) { 852 while (my ($name, $cb) = each %hook) {
698 my $htype = $HOOKTYPE{uc $name}; 853 my $htype = $HOOKTYPE{uc $name};
699 defined $htype 854 defined $htype
700 or Carp::croak "unsupported hook type '$name'"; 855 or Carp::croak "unsupported hook type '$name'";
701 856
857 $self->set_should_invoke ($htype, +1)
702 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 858 unless exists $self->{term}{_hook}[$htype]{$pkg};
703 $hook_count[$htype]++
704 or urxvt::set_should_invoke $htype, 1;
705 }
706 859
707 $self->{term}{_hook}[$htype]{$pkg} = $cb; 860 $self->{term}{_hook}[$htype]{$pkg} = $cb;
708 } 861 }
709} 862}
710 863
715 for my $name (@hook) { 868 for my $name (@hook) {
716 my $htype = $HOOKTYPE{uc $name}; 869 my $htype = $HOOKTYPE{uc $name};
717 defined $htype 870 defined $htype
718 or Carp::croak "unsupported hook type '$name'"; 871 or Carp::croak "unsupported hook type '$name'";
719 872
873 $self->set_should_invoke ($htype, -1)
720 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 874 if delete $self->{term}{_hook}[$htype]{$pkg};
721 --$hook_count[$htype]
722 or urxvt::set_should_invoke $htype, 0;
723 }
724 } 875 }
725} 876}
726 877
727our $AUTOLOAD; 878our $AUTOLOAD;
728 879
834# find on_xxx subs in the package and register them 985# find on_xxx subs in the package and register them
835# as hooks 986# as hooks
836sub register_package { 987sub register_package {
837 my ($self, $pkg, $argv) = @_; 988 my ($self, $pkg, $argv) = @_;
838 989
990 no strict 'refs';
991
992 urxvt::verbose 6, "register package $pkg to $self";
993
994 @{"$pkg\::ISA"} = urxvt::term::extension::;
995
839 my $proxy = bless { 996 my $proxy = bless {
840 _pkg => $pkg, 997 _pkg => $pkg,
841 argv => $argv, 998 argv => $argv,
842 }, $pkg; 999 }, $pkg;
843 Scalar::Util::weaken ($proxy->{term} = $self); 1000 Scalar::Util::weaken ($proxy->{term} = $self);
874 1031
875Destroy the terminal object (close the window, free resources 1032Destroy the terminal object (close the window, free resources
876etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1033etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
877watchers (timers, io watchers) are still active. 1034watchers (timers, io watchers) are still active.
878 1035
1036=item $term->exec_async ($cmd[, @args])
1037
1038Works like the combination of the C<fork>/C<exec> builtins, which executes
1039("starts") programs in the background. This function takes care of setting
1040the user environment before exec'ing the command (e.g. C<PATH>) and should
1041be preferred over explicit calls to C<exec> or C<system>.
1042
1043Returns the pid of the subprocess or C<undef> on error.
1044
1045=cut
1046
1047sub exec_async {
1048 my $self = shift;
1049
1050 my $pid = fork;
1051
1052 return $pid
1053 if !defined $pid or $pid;
1054
1055 %ENV = %{ $self->env };
1056
1057 exec @_;
1058 urxvt::_exit 255;
1059}
1060
879=item $isset = $term->option ($optval[, $set]) 1061=item $isset = $term->option ($optval[, $set])
880 1062
881Returns true if the option specified by C<$optval> is enabled, and 1063Returns true if the option specified by C<$optval> is enabled, and
882optionally change it. All option values are stored by name in the hash 1064optionally 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. 1065C<%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 1067Here is a a likely non-exhaustive list of option names, please see the
886source file F</src/optinc.h> to see the actual list: 1068source file F</src/optinc.h> to see the actual list:
887 1069
888 borderLess console cursorBlink cursorUnderline hold iconic insecure 1070 borderLess console cursorBlink cursorUnderline hold iconic insecure
889 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1071 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
890 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1072 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
891 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1073 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
892 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1074 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
893 tripleclickwords utmpInhibit visualBell 1075 transparent tripleclickwords utmpInhibit visualBell
894 1076
895=item $value = $term->resource ($name[, $newval]) 1077=item $value = $term->resource ($name[, $newval])
896 1078
897Returns the current resource value associated with a given name and 1079Returns the current resource value associated with a given name and
898optionally sets a new value. Setting values is most useful in the C<init> 1080optionally sets a new value. Setting values is most useful in the C<init>
915 1097
916 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1098 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
917 borderLess color cursorBlink cursorUnderline cutchars delete_key 1099 borderLess color cursorBlink cursorUnderline cutchars delete_key
918 display_name embed ext_bwidth fade font geometry hold iconName 1100 display_name embed ext_bwidth fade font geometry hold iconName
919 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1101 imFont imLocale inputMethod insecure int_bwidth intensityStyles
920 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1102 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
921 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1103 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
922 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1104 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
923 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1105 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
924 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1106 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
925 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1107 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
926 shade term_name title transparent transparent_all tripleclickwords 1108 secondaryScreen secondaryScroll selectstyle shade term_name title
927 utmpInhibit visualBell 1109 transient_for transparent transparent_all tripleclickwords utmpInhibit
1110 visualBell
928 1111
929=cut 1112=cut
930 1113
931sub resource($$;$) { 1114sub resource($$;$) {
932 my ($self, $name) = (shift, shift); 1115 my ($self, $name) = (shift, shift);
1106 1289
1107Normally its not a good idea to use this function, as programs might be 1290Normally 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 1291confused by changes in cursor position or scrolling. Its useful inside a
1109C<on_add_lines> hook, though. 1292C<on_add_lines> hook, though.
1110 1293
1294=item $term->scr_change_screen ($screen)
1295
1296Switch to given screen - 0 primary, 1 secondary.
1297
1111=item $term->cmd_parse ($octets) 1298=item $term->cmd_parse ($octets)
1112 1299
1113Similar to C<scr_add_lines>, but the argument must be in the 1300Similar to C<scr_add_lines>, but the argument must be in the
1114locale-specific encoding of the terminal and can contain command sequences 1301locale-specific encoding of the terminal and can contain command sequences
1115(escape codes) that will be interpreted. 1302(escape codes) that will be interpreted.
1125Replaces the event mask of the pty watcher by the given event mask. Can 1312Replaces the event mask of the pty watcher by the given event mask. Can
1126be used to suppress input and output handling to the pty/tty. See the 1313be used to suppress input and output handling to the pty/tty. See the
1127description of C<< urxvt::timer->events >>. Make sure to always restore 1314description of C<< urxvt::timer->events >>. Make sure to always restore
1128the previous value. 1315the previous value.
1129 1316
1317=item $fd = $term->pty_fd
1318
1319Returns the master file descriptor for the pty in use, or C<-1> if no pty
1320is used.
1321
1130=item $windowid = $term->parent 1322=item $windowid = $term->parent
1131 1323
1132Return the window id of the toplevel window. 1324Return the window id of the toplevel window.
1133 1325
1134=item $windowid = $term->vt 1326=item $windowid = $term->vt
1135 1327
1136Return the window id of the terminal window. 1328Return the window id of the terminal window.
1137 1329
1330=item $term->vt_emask_add ($x_event_mask)
1331
1332Adds the specified events to the vt event mask. Useful e.g. when you want
1333to receive pointer events all the times:
1334
1335 $term->vt_emask_add (urxvt::PointerMotionMask);
1336
1138=item $window_width = $term->width 1337=item $window_width = $term->width
1139 1338
1140=item $window_height = $term->height 1339=item $window_height = $term->height
1141 1340
1142=item $font_width = $term->fwidth 1341=item $font_width = $term->fwidth
1155 1354
1156=item $max_scrollback = $term->saveLines 1355=item $max_scrollback = $term->saveLines
1157 1356
1158=item $nrow_plus_saveLines = $term->total_rows 1357=item $nrow_plus_saveLines = $term->total_rows
1159 1358
1160=item $lines_in_scrollback = $term->nsaved 1359=item $topmost_scrollback_row = $term->top_row
1161 1360
1162Return various integers describing terminal characteristics. 1361Return various integers describing terminal characteristics.
1163 1362
1164=item $x_display = $term->display_id 1363=item $x_display = $term->display_id
1165 1364
1191=item $modifiermask = $term->ModNumLockMask 1390=item $modifiermask = $term->ModNumLockMask
1192 1391
1193Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1392Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1194AltGr), the meta key (often Alt) and the num lock key, if applicable. 1393AltGr), the meta key (often Alt) and the num lock key, if applicable.
1195 1394
1395=item $screen = $term->current_screen
1396
1397Returns the currently displayed screen (0 primary, 1 secondary).
1398
1399=item $cursor_is_hidden = $term->hidden_cursor
1400
1401Returns wether the cursor is currently hidden or not.
1402
1196=item $view_start = $term->view_start ([$newvalue]) 1403=item $view_start = $term->view_start ([$newvalue])
1197 1404
1198Returns the negative row number of the topmost line. Minimum value is 1405Returns the row number of the topmost displayed line. Maximum value is
1199C<0>, which displays the normal terminal contents. Larger values scroll 1406C<0>, which displays the normal terminal contents. Lower values scroll
1200this many lines into the scrollback buffer. 1407this many lines into the scrollback buffer.
1201 1408
1202=item $term->want_refresh 1409=item $term->want_refresh
1203 1410
1204Requests a screen refresh. At the next opportunity, rxvt-unicode will 1411Requests a screen refresh. At the next opportunity, rxvt-unicode will
1219line, starting at column C<$start_col> (default C<0>), which is useful 1426line, starting at column C<$start_col> (default C<0>), which is useful
1220to replace only parts of a line. The font index in the rendition will 1427to replace only parts of a line. The font index in the rendition will
1221automatically be updated. 1428automatically be updated.
1222 1429
1223C<$text> is in a special encoding: tabs and wide characters that use more 1430C<$text> is in a special encoding: tabs and wide characters that use more
1224than one cell when displayed are padded with urxvt::NOCHAR characters 1431than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1225(C<chr 65535>). Characters with combining characters and other characters 1432characters. Characters with combining characters and other characters that
1226that do not fit into the normal tetx encoding will be replaced with 1433do not fit into the normal tetx encoding will be replaced with characters
1227characters in the private use area. 1434in the private use area.
1228 1435
1229You have to obey this encoding when changing text. The advantage is 1436You have to obey this encoding when changing text. The advantage is
1230that C<substr> and similar functions work on screen cells and not on 1437that C<substr> and similar functions work on screen cells and not on
1231characters. 1438characters.
1232 1439
1407 1614
1408Calls XUngrab for the most recent grab. Is called automatically on 1615Calls 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 1616evaluation errors, as it is better to lose the grab in the error case as
1410the session. 1617the session.
1411 1618
1619=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1620
1621=item $atom_name = $term->XGetAtomName ($atom)
1622
1623=item @atoms = $term->XListProperties ($window)
1624
1625=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1626
1627=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1628
1629=item $term->XDeleteProperty ($window, $property)
1630
1631=item $window = $term->DefaultRootWindow
1632
1633=item $term->XReparentWindow ($window, $parent, [$x, $y])
1634
1635=item $term->XMapWindow ($window)
1636
1637=item $term->XUnmapWindow ($window)
1638
1639=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1640
1641=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1642
1643=item $term->XChangeInput ($window, $add_events[, $del_events])
1644
1645Various X or X-related functions. The C<$term> object only serves as
1646the source of the display, otherwise those functions map more-or-less
1647directory onto the X functions of the same name.
1648
1412=back 1649=back
1413 1650
1414=cut 1651=cut
1415 1652
1416package urxvt::popup; 1653package urxvt::popup;
1517 my $env = $self->{term}->env; 1754 my $env = $self->{term}->env;
1518 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. 1755 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1519 delete $env->{LC_ALL}; 1756 delete $env->{LC_ALL};
1520 $env->{LC_CTYPE} = $self->{term}->locale; 1757 $env->{LC_CTYPE} = $self->{term}->locale;
1521 1758
1522 urxvt::term->new ($env, $self->{term}->resource ("name"), 1759 urxvt::term->new ($env, "popup",
1523 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1760 "--perl-lib" => "", "--perl-ext-common" => "",
1761 "-pty-fd" => -1, "-sl" => 0,
1762 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1524 "--transient-for" => $self->{term}->parent, 1763 "--transient-for" => $self->{term}->parent,
1525 "-display" => $self->{term}->display_id, 1764 "-display" => $self->{term}->display_id,
1526 "-pe" => "urxvt-popup") 1765 "-pe" => "urxvt-popup")
1527 or die "unable to create popup window\n"; 1766 or die "unable to create popup window\n";
1528} 1767}
1533 delete $self->{term}{_destroy}{$self}; 1772 delete $self->{term}{_destroy}{$self};
1534 $self->{term}->ungrab; 1773 $self->{term}->ungrab;
1535} 1774}
1536 1775
1537=back 1776=back
1777
1778=cut
1779
1780package urxvt::watcher;
1781
1782@urxvt::timer::ISA = __PACKAGE__;
1783@urxvt::iow::ISA = __PACKAGE__;
1784@urxvt::pw::ISA = __PACKAGE__;
1785@urxvt::iw::ISA = __PACKAGE__;
1538 1786
1539=head2 The C<urxvt::timer> Class 1787=head2 The C<urxvt::timer> Class
1540 1788
1541This class implements timer watchers/events. Time is represented as a 1789This class implements timer watchers/events. Time is represented as a
1542fractional number of seconds since the epoch. Example: 1790fractional number of seconds since the epoch. Example:
1580Start the timer. 1828Start the timer.
1581 1829
1582=item $timer = $timer->start ($tstamp) 1830=item $timer = $timer->start ($tstamp)
1583 1831
1584Set the event trigger time to C<$tstamp> and start the timer. 1832Set the event trigger time to C<$tstamp> and start the timer.
1833
1834=item $timer = $timer->after ($delay)
1835
1836Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1585 1837
1586=item $timer = $timer->stop 1838=item $timer = $timer->stop
1587 1839
1588Stop the timer. 1840Stop the timer.
1589 1841
1636 1888
1637Stop watching for events on the given filehandle. 1889Stop watching for events on the given filehandle.
1638 1890
1639=back 1891=back
1640 1892
1893=head2 The C<urxvt::iw> Class
1894
1895This class implements idle watchers, that get called automatically when
1896the process is idle. They should return as fast as possible, after doing
1897some useful work.
1898
1899=over 4
1900
1901=item $iw = new urxvt::iw
1902
1903Create a new idle watcher object in stopped state.
1904
1905=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1906
1907Set the callback to be called when the watcher triggers.
1908
1909=item $timer = $timer->start
1910
1911Start the watcher.
1912
1913=item $timer = $timer->stop
1914
1915Stop the watcher.
1916
1917=back
1918
1919=head2 The C<urxvt::pw> Class
1920
1921This class implements process watchers. They create an event whenever a
1922process exits, after which they stop automatically.
1923
1924 my $pid = fork;
1925 ...
1926 $term->{pw} = urxvt::pw
1927 ->new
1928 ->start ($pid)
1929 ->cb (sub {
1930 my ($pw, $exit_status) = @_;
1931 ...
1932 });
1933
1934=over 4
1935
1936=item $pw = new urxvt::pw
1937
1938Create a new process watcher in stopped state.
1939
1940=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1941
1942Set the callback to be called when the timer triggers.
1943
1944=item $pw = $timer->start ($pid)
1945
1946Tells the wqtcher to start watching for process C<$pid>.
1947
1948=item $pw = $pw->stop
1949
1950Stop the watcher.
1951
1952=back
1953
1641=head1 ENVIRONMENT 1954=head1 ENVIRONMENT
1642 1955
1643=head2 URXVT_PERL_VERBOSITY 1956=head2 URXVT_PERL_VERBOSITY
1644 1957
1645This variable controls the verbosity level of the perl extension. Higher 1958This variable controls the verbosity level of the perl extension. Higher

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