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Revision 1.80 by root, Thu Jan 12 00:11:59 2006 UTC vs.
Revision 1.116 by root, Fri Jan 20 16:18:07 2006 UTC

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 39
40Or by adding them to the resource for extensions loaded by default:
41
42 URxvt.perl-ext-common: default,automove-background,selection-autotransform
43
40=over 4 44=over 4
41 45
42=item selection (enabled by default) 46=item selection (enabled by default)
43 47
44(More) intelligent selection. This extension tries to be more intelligent 48(More) intelligent selection. This extension tries to be more intelligent
45when the user extends selections (double-click). Right now, it tries to 49when the user extends selections (double-click and further clicks). Right
46select urls and complete shell-quoted arguments, which is very convenient, 50now, it tries to select words, urls and complete shell-quoted
47too, if your F<ls> supports C<--quoting-style=shell>. 51arguments, which is very convenient, too, if your F<ls> supports
52C<--quoting-style=shell>.
48 53
54A double-click usually selects the word under the cursor, further clicks
55will enlarge the selection.
56
57The selection works by trying to match a number of regexes and displaying
58them in increasing order of length. You can add your own regexes by
59specifying resources of the form:
60
61 URxvt.selection.pattern-0: perl-regex
62 URxvt.selection.pattern-1: perl-regex
63 ...
64
65The index number (0, 1...) must not have any holes, and each regex must
66contain at least one pair of capturing parentheses, which will be used for
67the match. For example, the followign adds a regex that matches everything
68between two vertical bars:
69
70 URxvt.selection.pattern-0: \\|([^|]+)\\|
71
72You can look at the source of the selection extension to see more
73interesting uses, such as parsing a line from beginning to end.
74
49It also offers the following bindable keyboard command: 75This extension also offers following bindable keyboard commands:
50 76
51=over 4 77=over 4
52 78
53=item rot13 79=item rot13
54 80
67 93
68Binds 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
69text into various other formats/action (such as uri unescaping, perl 95text into various other formats/action (such as uri unescaping, perl
70evalution, web-browser starting etc.), depending on content. 96evalution, web-browser starting etc.), depending on content.
71 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 @{ $self->{term}{selection_popup_hook} }, sub {
113 /a/ ? ("a to be" => sub { s/a/b/g }
114 : ()
115 };
116
72=item searchable-scrollback<hotkey> (enabled by default) 117=item searchable-scrollback<hotkey> (enabled by default)
73 118
74Adds regex search functionality to the scrollback buffer, triggered 119Adds regex search functionality to the scrollback buffer, triggered
75by a hotkey (default: C<M-s>). When in search mode, normal terminal 120by a hotkey (default: C<M-s>). While in search mode, normal terminal
76input/output is suspended. 121input/output is suspended and a regex is displayed at the bottom of the
122screen.
77 123
78C</> starts an incremental regex search, C<n> searches further, C<p> or 124Inputting characters appends them to the regex and continues incremental
79C<N> jump to the previous match, C<G> jumps to the bottom and clears the 125search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
80history, C<enter> leaves search mode at the current position and C<escape> 126search upwards/downwards in the scrollback buffer, C<End> jumps to the
81returns to the original position. 127bottom. C<Escape> leaves search mode and returns to the point where search
128was started, while C<Enter> or C<Return> stay at the current position and
129additionally stores the first match in the current line into the primary
130selection.
82 131
83=item digital-clock 132=item selection-autotransform
84 133
85Displays a digital clock using the built-in overlay. 134This selection allows you to do automatic transforms on a selection
135whenever a selection is made.
136
137It works by specifying perl snippets (most useful is a single C<s///>
138operator) that modify C<$_> as resources:
139
140 URxvt.selection-autotransform.0: transform
141 URxvt.selection-autotransform.1: transform
142 ...
143
144For example, the following will transform selections of the form
145C<filename:number>, often seen in compiler messages, into C<vi +$filename
146$word>:
147
148 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
149
150And this example matches the same,but replaces it with vi-commands you can
151paste directly into your (vi :) editor:
152
153 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
154
155Of course, this can be modified to suit your needs and your editor :)
156
157To expand the example above to typical perl error messages ("XXX at
158FILENAME line YYY."), you need a slightly more elaborate solution:
159
160 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
161 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
162
163The first line tells the selection code to treat the unchanging part of
164every error message as a selection pattern, and the second line transforms
165the message into vi commands to load the file.
166
167=item tabbed
168
169This transforms the terminal into a tabbar with additional terminals, that
170is, it implements what is commonly refered to as "tabbed terminal". The topmost line
171displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
172button per tab.
173
174Clicking a button will activate that tab. Pressing B<Shift-Left> and
175B<Shift-Right> will switch to the tab left or right of the current one,
176while B<Shift-Down> creates a new tab.
86 177
87=item mark-urls 178=item mark-urls
88 179
89Uses per-line display filtering (C<on_line_update>) to underline urls and 180Uses per-line display filtering (C<on_line_update>) to underline urls and
90make them clickable. When clicked, the program specified in the resource 181make them clickable. When middle-clicked, the program specified in the
91C<urlLauncher> (default C<x-www-browser>) will be started. 182resource C<urlLauncher> (default C<x-www-browser>) will be started with
183the URL as first argument.
184
185=item automove-background
186
187This is basically a one-line extension that dynamically changes the background pixmap offset
188to the window position, in effect creating the same effect as pseudo transparency with
189a custom pixmap. No scaling is supported in this mode. Exmaple:
190
191 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
92 192
93=item block-graphics-to-ascii 193=item block-graphics-to-ascii
94 194
95A not very useful example of filtering all text output to the terminal, 195A not very useful example of filtering all text output to the terminal,
96by replacing all line-drawing characters (U+2500 .. U+259F) by a 196by replacing all line-drawing characters (U+2500 .. U+259F) by a
97similar-looking ascii character. 197similar-looking ascii character.
98 198
199=item digital-clock
200
201Displays a digital clock using the built-in overlay.
202
99=item example-refresh-hooks 203=item example-refresh-hooks
100 204
101Displays a very simple digital clock in the upper right corner of the 205Displays a very simple digital clock in the upper right corner of the
102window. Illustrates overwriting the refresh callbacks to create your own 206window. Illustrates overwriting the refresh callbacks to create your own
103overlays or changes. 207overlays or changes.
208
209=item selection-pastebin
210
211This is a little rarely useful extension that Uploads the selection as
212textfile to a remote site (or does other things). (The implementation is
213not currently secure for use in a multiuser environment as it writes to
214F</tmp> directly.).
215
216It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
217i.e.
218
219 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
220
221Pressing this combination runs a command with C<%> replaced by the name of
222the textfile. This command can be set via a resource:
223
224 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
225
226And the default is likely not useful to anybody but the few people around
227here :)
228
229The name of the textfile is the hex encoded md5 sum of the selection, so
230the same content should lead to the same filename.
231
232After a successful upload the selection will be replaced by the text given
233in the C<selection-pastebin-url> resource (again, the % is the placeholder
234for the filename):
235
236 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
104 237
105=back 238=back
106 239
107=head1 API DOCUMENTATION 240=head1 API DOCUMENTATION
108 241
181called whenever the relevant event happens. 314called whenever the relevant event happens.
182 315
183The first argument passed to them is an extension oject as described in 316The first argument passed to them is an extension oject as described in
184the in the C<Extension Objects> section. 317the in the C<Extension Objects> section.
185 318
186B<All> of these hooks must return a boolean value. If it is true, then the 319B<All> of these hooks must return a boolean value. If any of the called
187event counts as being I<consumed>, and the invocation of other hooks is 320hooks returns true, then the event counts as being I<consumed>, and the
188skipped, and the relevant action might not be carried out by the C++ code. 321relevant action might not be carried out by the C++ code.
189 322
190I<< When in doubt, return a false value (preferably C<()>). >> 323I<< When in doubt, return a false value (preferably C<()>). >>
191 324
192=over 4 325=over 4
193 326
194=item on_init $term 327=item on_init $term
195 328
196Called after a new terminal object has been initialized, but before 329Called after a new terminal object has been initialized, but before
197windows are created or the command gets run. Most methods are unsafe to 330windows are created or the command gets run. Most methods are unsafe to
198call or deliver senseless data, as terminal size and other characteristics 331call or deliver senseless data, as terminal size and other characteristics
199have not yet been determined. You can safely query and change resources, 332have not yet been determined. You can safely query and change resources
200though. 333and options, though. For many purposes the C<on_start> hook is a better
334place.
335
336=item on_start $term
337
338Called at the very end of initialisation of a new terminal, just before
339trying to map (display) the toplevel and returning to the mainloop.
340
341=item on_destroy $term
342
343Called whenever something tries to destroy terminal, before doing anything
344yet. If this hook returns true, then destruction is skipped, but this is
345rarely a good idea.
201 346
202=item on_reset $term 347=item on_reset $term
203 348
204Called after the screen is "reset" for any reason, such as resizing or 349Called after the screen is "reset" for any reason, such as resizing or
205control sequences. Here is where you can react on changes to size-related 350control sequences. Here is where you can react on changes to size-related
206variables. 351variables.
207 352
208=item on_start $term 353=item on_child_start $term, $pid
209 354
210Called at the very end of initialisation of a new terminal, just before 355Called just after the child process has been C<fork>ed.
211returning to the mainloop. 356
357=item on_child_exit $term, $status
358
359Called just after the child process has exited. C<$status> is the status
360from C<waitpid>.
212 361
213=item on_sel_make $term, $eventtime 362=item on_sel_make $term, $eventtime
214 363
215Called whenever a selection has been made by the user, but before the 364Called whenever a selection has been made by the user, but before the
216selection text is copied, so changes to the beginning, end or type of the 365selection text is copied, so changes to the beginning, end or type of the
230=item on_sel_extend $term 379=item on_sel_extend $term
231 380
232Called whenever the user tries to extend the selection (e.g. with a double 381Called whenever the user tries to extend the selection (e.g. with a double
233click) and is either supposed to return false (normal operation), or 382click) and is either supposed to return false (normal operation), or
234should extend the selection itelf and return true to suppress the built-in 383should extend the selection itelf and return true to suppress the built-in
235processing. 384processing. This can happen multiple times, as long as the callback
385returns true, it will be called on every further click by the user and is
386supposed to enlarge the selection more and more, if possible.
236 387
237See the F<selection> example extension. 388See the F<selection> example extension.
238 389
239=item on_view_change $term, $offset 390=item on_view_change $term, $offset
240 391
307 458
308Called whenever the user presses a key combination that has a 459Called whenever the user presses a key combination that has a
309C<perl:string> action bound to it (see description of the B<keysym> 460C<perl:string> action bound to it (see description of the B<keysym>
310resource in the @@RXVT_NAME@@(1) manpage). 461resource in the @@RXVT_NAME@@(1) manpage).
311 462
463=item on_x_event $term, $event
464
465Called on every X event received on the vt window (and possibly other
466windows). Should only be used as a last resort. Most event structure
467members are not passed.
468
312=item on_focus_in $term 469=item on_focus_in $term
313 470
314Called whenever the window gets the keyboard focus, before rxvt-unicode 471Called whenever the window gets the keyboard focus, before rxvt-unicode
315does focus in processing. 472does focus in processing.
316 473
317=item on_focus_out $term 474=item on_focus_out $term
318 475
319Called wheneever the window loses keyboard focus, before rxvt-unicode does 476Called wheneever the window loses keyboard focus, before rxvt-unicode does
320focus out processing. 477focus out processing.
478
479=item on_configure_notify $term, $event
321 480
322=item on_key_press $term, $event, $keysym, $octets 481=item on_key_press $term, $event, $keysym, $octets
323 482
324=item on_key_release $term, $event, $keysym 483=item on_key_release $term, $event, $keysym
325 484
342 501
343C<on_key_press> additionally receives the string rxvt-unicode would 502C<on_key_press> additionally receives the string rxvt-unicode would
344output, if any, in locale-specific encoding. 503output, if any, in locale-specific encoding.
345 504
346subwindow. 505subwindow.
506
507=item on_client_message $term, $event
508
509=item on_wm_protocols $term, $event
510
511=item on_wm_delete_window $term, $event
512
513Called when various types of ClientMessage events are received (all with
514format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
347 515
348=back 516=back
349 517
350=cut 518=cut
351 519
357use Scalar::Util (); 525use Scalar::Util ();
358use List::Util (); 526use List::Util ();
359 527
360our $VERSION = 1; 528our $VERSION = 1;
361our $TERM; 529our $TERM;
530our @TERM_INIT;
531our @TERM_EXT;
362our @HOOKNAME; 532our @HOOKNAME;
363our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 533our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
364our %OPTION; 534our %OPTION;
365 535
366our $LIBDIR; 536our $LIBDIR;
388=item $urxvt::TERM 558=item $urxvt::TERM
389 559
390The current terminal. This variable stores the current C<urxvt::term> 560The current terminal. This variable stores the current C<urxvt::term>
391object, whenever a callback/hook is executing. 561object, whenever a callback/hook is executing.
392 562
563=item @urxvt::TERM_INIT
564
565All coderefs in this array will be called as methods of the next newly
566created C<urxvt::term> object (during the C<on_init> phase). The array
567gets cleared before the codereferences that were in it are being executed,
568so coderefs can push themselves onto it again if they so desire.
569
570This complements to the perl-eval commandline option, but gets executed
571first.
572
573=item @urxvt::TERM_EXT
574
575Works similar to C<@TERM_INIT>, but contains perl package/class names, which
576get registered as normal extensions after calling the hooks in C<@TERM_INIT>
577but before other extensions. Gets cleared just like C<@TERM_INIT>.
578
393=back 579=back
394 580
395=head2 Functions in the C<urxvt> Package 581=head2 Functions in the C<urxvt> Package
396 582
397=over 4 583=over 4
411Using this function has the advantage that its output ends up in the 597Using this function has the advantage that its output ends up in the
412correct place, e.g. on stderr of the connecting urxvtc client. 598correct place, e.g. on stderr of the connecting urxvtc client.
413 599
414Messages have a size limit of 1023 bytes currently. 600Messages have a size limit of 1023 bytes currently.
415 601
416=item $is_safe = urxvt::safe
417
418Returns true when it is safe to do potentially unsafe things, such as
419evaluating perl code specified by the user. This is true when urxvt was
420started setuid or setgid.
421
422=item $time = urxvt::NOW 602=item $time = urxvt::NOW
423 603
424Returns the "current time" (as per the event loop). 604Returns the "current time" (as per the event loop).
425 605
426=item urxvt::CurrentTime 606=item urxvt::CurrentTime
427 607
428=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 608=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
429Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 609Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
430Button4Mask, Button5Mask, AnyModifier 610Button4Mask, Button5Mask, AnyModifier
611
612=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
613ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
614PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
615Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
616KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
617ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
618FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
619
620=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
621EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
622GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
623UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
624ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
625CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
626SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
431 627
432Various constants for use in X calls and event processing. 628Various constants for use in X calls and event processing.
433 629
434=back 630=back
435 631
486=back 682=back
487 683
488=cut 684=cut
489 685
490BEGIN { 686BEGIN {
491 urxvt->bootstrap;
492
493 # overwrite perl's warn 687 # overwrite perl's warn
494 *CORE::GLOBAL::warn = sub { 688 *CORE::GLOBAL::warn = sub {
495 my $msg = join "", @_; 689 my $msg = join "", @_;
496 $msg .= "\n" 690 $msg .= "\n"
497 unless $msg =~ /\n$/; 691 unless $msg =~ /\n$/;
498 urxvt::warn ($msg); 692 urxvt::warn ($msg);
499 }; 693 };
500
501# delete $ENV{IFS};
502# delete $ENV{CDPATH};
503# delete $ENV{BASH_ENV};
504# $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
505} 694}
506 695
507my @hook_count;
508my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 696my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
509 697
510sub verbose { 698sub verbose {
511 my ($level, $msg) = @_; 699 my ($level, $msg) = @_;
512 warn "$msg\n" if $level <= $verbosity; 700 warn "$msg\n" if $level <= $verbosity;
513} 701}
514 702
515my $extension_pkg = "extension0000";
516my %extension_pkg; 703my %extension_pkg;
517 704
518# load a single script into its own package, once only 705# load a single script into its own package, once only
519sub extension_package($) { 706sub extension_package($) {
520 my ($path) = @_; 707 my ($path) = @_;
521 708
522 $extension_pkg{$path} ||= do { 709 $extension_pkg{$path} ||= do {
523 my $pkg = "urxvt::" . ($extension_pkg++); 710 $path =~ /([^\/\\]+)$/;
711 my $pkg = $1;
712 $pkg =~ s/[^[:word:]]/_/g;
713 $pkg = "urxvt::ext::$pkg";
524 714
525 verbose 3, "loading extension '$path' into package '$pkg'"; 715 verbose 3, "loading extension '$path' into package '$pkg'";
526 716
527 open my $fh, "<:raw", $path 717 open my $fh, "<:raw", $path
528 or die "$path: $!"; 718 or die "$path: $!";
529 719
530 my $source = untaint 720 my $source =
531 "package $pkg; use strict; use utf8;\n" 721 "package $pkg; use strict; use utf8;\n"
532 . "use base urxvt::term::extension::;\n"
533 . "#line 1 \"$path\"\n{\n" 722 . "#line 1 \"$path\"\n{\n"
534 . (do { local $/; <$fh> }) 723 . (do { local $/; <$fh> })
535 . "\n};\n1"; 724 . "\n};\n1";
536 725
537 eval $source 726 eval $source
551 if ($htype == 0) { # INIT 740 if ($htype == 0) { # INIT
552 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 741 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
553 742
554 my %ext_arg; 743 my %ext_arg;
555 744
745 {
746 my @init = @TERM_INIT;
747 @TERM_INIT = ();
748 $_->($TERM) for @init;
749 my @pkg = @TERM_EXT;
750 @TERM_EXT = ();
751 $TERM->register_package ($_) for @pkg;
752 }
753
556 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 754 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
557 if ($_ eq "default") { 755 if ($_ eq "default") {
558 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 756 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
559 } elsif (/^-(.*)$/) { 757 } elsif (/^-(.*)$/) {
560 delete $ext_arg{$1}; 758 delete $ext_arg{$1};
561 } elsif (/^([^<]+)<(.*)>$/) { 759 } elsif (/^([^<]+)<(.*)>$/) {
586 if $verbosity >= 10; 784 if $verbosity >= 10;
587 785
588 keys %$cb; 786 keys %$cb;
589 787
590 while (my ($pkg, $cb) = each %$cb) { 788 while (my ($pkg, $cb) = each %$cb) {
591 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 789 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
592 and last; 790 $retval ||= $retval_;
593 791
594 if ($@) { 792 if ($@) {
595 $TERM->ungrab; # better to lose the grab than the session 793 $TERM->ungrab; # better to lose the grab than the session
596 warn $@; 794 warn $@;
597 } 795 }
598 } 796 }
797
798 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
799 if $verbosity >= 11;
599 } 800 }
600 801
601 if ($htype == 1) { # DESTROY 802 if ($htype == 1) { # DESTROY
602 if (my $hook = delete $TERM->{_hook}) {
603 for my $htype (0..$#$hook) {
604 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
605 or set_should_invoke $htype, 0;
606 }
607 }
608
609 # clear package objects 803 # clear package objects
610 %$_ = () for values %{ $TERM->{_pkg} }; 804 %$_ = () for values %{ $TERM->{_pkg} };
611 805
612 # clear package 806 # clear package
613 %$TERM = (); 807 %$TERM = ();
627 while (my ($name, $cb) = each %hook) { 821 while (my ($name, $cb) = each %hook) {
628 my $htype = $HOOKTYPE{uc $name}; 822 my $htype = $HOOKTYPE{uc $name};
629 defined $htype 823 defined $htype
630 or Carp::croak "unsupported hook type '$name'"; 824 or Carp::croak "unsupported hook type '$name'";
631 825
826 $self->set_should_invoke ($htype, +1)
632 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 827 unless exists $self->{term}{_hook}[$htype]{$pkg};
633 $hook_count[$htype]++
634 or urxvt::set_should_invoke $htype, 1;
635 }
636 828
637 $self->{term}{_hook}[$htype]{$pkg} = $cb; 829 $self->{term}{_hook}[$htype]{$pkg} = $cb;
638 } 830 }
639} 831}
640 832
645 for my $name (@hook) { 837 for my $name (@hook) {
646 my $htype = $HOOKTYPE{uc $name}; 838 my $htype = $HOOKTYPE{uc $name};
647 defined $htype 839 defined $htype
648 or Carp::croak "unsupported hook type '$name'"; 840 or Carp::croak "unsupported hook type '$name'";
649 841
842 $self->set_should_invoke ($htype, -1)
650 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 843 if delete $self->{term}{_hook}[$htype]{$pkg};
651 --$hook_count[$htype]
652 or urxvt::set_should_invoke $htype, 0;
653 }
654 } 844 }
655} 845}
656 846
657our $AUTOLOAD; 847our $AUTOLOAD;
658 848
764# find on_xxx subs in the package and register them 954# find on_xxx subs in the package and register them
765# as hooks 955# as hooks
766sub register_package { 956sub register_package {
767 my ($self, $pkg, $argv) = @_; 957 my ($self, $pkg, $argv) = @_;
768 958
959 no strict 'refs';
960
961 urxvt::verbose 6, "register package $pkg to $self";
962
963 @{"$pkg\::ISA"} = urxvt::term::extension::;
964
769 my $proxy = bless { 965 my $proxy = bless {
770 _pkg => $pkg, 966 _pkg => $pkg,
771 argv => $argv, 967 argv => $argv,
772 }, $pkg; 968 }, $pkg;
773 Scalar::Util::weaken ($proxy->{term} = $self); 969 Scalar::Util::weaken ($proxy->{term} = $self);
804 1000
805Destroy the terminal object (close the window, free resources 1001Destroy the terminal object (close the window, free resources
806etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1002etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
807watchers (timers, io watchers) are still active. 1003watchers (timers, io watchers) are still active.
808 1004
1005=item $term->exec_async ($cmd[, @args])
1006
1007Works like the combination of the C<fork>/C<exec> builtins, which executes
1008("starts") programs in the background. This function takes care of setting
1009the user environment before exec'ing the command (e.g. C<PATH>) and should
1010be preferred over explicit calls to C<exec> or C<system>.
1011
1012Returns the pid of the subprocess or C<undef> on error.
1013
1014=cut
1015
1016sub exec_async {
1017 my $self = shift;
1018
1019 my $pid = fork;
1020
1021 return $pid
1022 if !defined $pid or $pid;
1023
1024 %ENV = %{ $self->env };
1025
1026 exec @_;
1027 urxvt::_exit 255;
1028}
1029
809=item $isset = $term->option ($optval[, $set]) 1030=item $isset = $term->option ($optval[, $set])
810 1031
811Returns true if the option specified by C<$optval> is enabled, and 1032Returns true if the option specified by C<$optval> is enabled, and
812optionally change it. All option values are stored by name in the hash 1033optionally change it. All option values are stored by name in the hash
813C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. 1034C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
815Here is a a likely non-exhaustive list of option names, please see the 1036Here is a a likely non-exhaustive list of option names, please see the
816source file F</src/optinc.h> to see the actual list: 1037source file F</src/optinc.h> to see the actual list:
817 1038
818 borderLess console cursorBlink cursorUnderline hold iconic insecure 1039 borderLess console cursorBlink cursorUnderline hold iconic insecure
819 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1040 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
820 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1041 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
821 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1042 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
822 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1043 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
823 tripleclickwords utmpInhibit visualBell 1044 transparent tripleclickwords utmpInhibit visualBell
824 1045
825=item $value = $term->resource ($name[, $newval]) 1046=item $value = $term->resource ($name[, $newval])
826 1047
827Returns the current resource value associated with a given name and 1048Returns the current resource value associated with a given name and
828optionally sets a new value. Setting values is most useful in the C<init> 1049optionally sets a new value. Setting values is most useful in the C<init>
845 1066
846 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1067 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
847 borderLess color cursorBlink cursorUnderline cutchars delete_key 1068 borderLess color cursorBlink cursorUnderline cutchars delete_key
848 display_name embed ext_bwidth fade font geometry hold iconName 1069 display_name embed ext_bwidth fade font geometry hold iconName
849 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1070 imFont imLocale inputMethod insecure int_bwidth intensityStyles
850 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1071 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
851 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1072 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
852 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1073 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
853 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1074 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
854 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1075 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
855 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1076 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
856 shade term_name title transparent transparent_all tripleclickwords 1077 secondaryScreen secondaryScroll selectstyle shade term_name title
857 utmpInhibit visualBell 1078 transient_for transparent transparent_all tripleclickwords utmpInhibit
1079 visualBell
858 1080
859=cut 1081=cut
860 1082
861sub resource($$;$) { 1083sub resource($$;$) {
862 my ($self, $name) = (shift, shift); 1084 my ($self, $name) = (shift, shift);
897=item ($row, $col) = $term->selection_end ([$row, $col]) 1119=item ($row, $col) = $term->selection_end ([$row, $col])
898 1120
899Return the current values of the selection mark, begin or end positions, 1121Return the current values of the selection mark, begin or end positions,
900and optionally set them to new values. 1122and optionally set them to new values.
901 1123
1124=item $term->selection_make ($eventtime[, $rectangular])
1125
1126Tries to make a selection as set by C<selection_beg> and
1127C<selection_end>. If C<$rectangular> is true (default: false), a
1128rectangular selection will be made. This is the prefered function to make
1129a selection.
1130
902=item $success = $term->selection_grab ($eventtime) 1131=item $success = $term->selection_grab ($eventtime)
903 1132
904Try to request the primary selection from the server (for example, as set 1133Try to request the primary selection text from the server (for example, as
905by the next method). 1134set by the next method). No visual feedback will be given. This function
1135is mostly useful from within C<on_sel_grab> hooks.
906 1136
907=item $oldtext = $term->selection ([$newtext]) 1137=item $oldtext = $term->selection ([$newtext])
908 1138
909Return the current selection text and optionally replace it by C<$newtext>. 1139Return the current selection text and optionally replace it by C<$newtext>.
910 1140
1003Convert the given locale-encoded octets into a perl string. 1233Convert the given locale-encoded octets into a perl string.
1004 1234
1005=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle]) 1235=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
1006 1236
1007XORs the rendition values in the given span with the provided value 1237XORs the rendition values in the given span with the provided value
1008(default: C<RS_RVid>). Useful in refresh hooks to provide effects similar 1238(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
1009to the selection. 1239refresh hooks to provide effects similar to the selection.
1010 1240
1011=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]]) 1241=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
1012 1242
1013Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing 1243Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1014whitespace will additionally be xored with the C<$rstyle2>, which defaults 1244whitespace will additionally be xored with the C<$rstyle2>, which defaults
1015to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines 1245to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1016it instead. 1246it instead. Both styles I<MUST NOT> contain font styles.
1017 1247
1018=item $term->scr_bell 1248=item $term->scr_bell
1019 1249
1020Ring the bell! 1250Ring the bell!
1021 1251
1055 1285
1056=item $windowid = $term->vt 1286=item $windowid = $term->vt
1057 1287
1058Return the window id of the terminal window. 1288Return the window id of the terminal window.
1059 1289
1290=item $term->vt_emask_add ($x_event_mask)
1291
1292Adds the specified events to the vt event mask. Useful e.g. when you want
1293to receive pointer events all the times:
1294
1295 $term->vt_emask_add (urxvt::PointerMotionMask);
1296
1060=item $window_width = $term->width 1297=item $window_width = $term->width
1061 1298
1062=item $window_height = $term->height 1299=item $window_height = $term->height
1063 1300
1064=item $font_width = $term->fwidth 1301=item $font_width = $term->fwidth
1077 1314
1078=item $max_scrollback = $term->saveLines 1315=item $max_scrollback = $term->saveLines
1079 1316
1080=item $nrow_plus_saveLines = $term->total_rows 1317=item $nrow_plus_saveLines = $term->total_rows
1081 1318
1082=item $lines_in_scrollback = $term->nsaved 1319=item $topmost_scrollback_row = $term->top_row
1083 1320
1084Return various integers describing terminal characteristics. 1321Return various integers describing terminal characteristics.
1085 1322
1086=item $x_display = $term->display_id 1323=item $x_display = $term->display_id
1087 1324
1115Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1352Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1116AltGr), the meta key (often Alt) and the num lock key, if applicable. 1353AltGr), the meta key (often Alt) and the num lock key, if applicable.
1117 1354
1118=item $view_start = $term->view_start ([$newvalue]) 1355=item $view_start = $term->view_start ([$newvalue])
1119 1356
1120Returns the negative row number of the topmost line. Minimum value is 1357Returns the row number of the topmost displayed line. Maximum value is
1121C<0>, which displays the normal terminal contents. Larger values scroll 1358C<0>, which displays the normal terminal contents. Lower values scroll
1122this many lines into the scrollback buffer. 1359this many lines into the scrollback buffer.
1123 1360
1124=item $term->want_refresh 1361=item $term->want_refresh
1125 1362
1126Requests a screen refresh. At the next opportunity, rxvt-unicode will 1363Requests a screen refresh. At the next opportunity, rxvt-unicode will
1205Return the row number of the first/last row of the line, respectively. 1442Return the row number of the first/last row of the line, respectively.
1206 1443
1207=item $offset = $line->offset_of ($row, $col) 1444=item $offset = $line->offset_of ($row, $col)
1208 1445
1209Returns the character offset of the given row|col pair within the logical 1446Returns the character offset of the given row|col pair within the logical
1210line. 1447line. Works for rows outside the line, too, and returns corresponding
1448offsets outside the string.
1211 1449
1212=item ($row, $col) = $line->coord_of ($offset) 1450=item ($row, $col) = $line->coord_of ($offset)
1213 1451
1214Translates a string offset into terminal coordinates again. 1452Translates a string offset into terminal coordinates again.
1215 1453
1438 my $env = $self->{term}->env; 1676 my $env = $self->{term}->env;
1439 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. 1677 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1440 delete $env->{LC_ALL}; 1678 delete $env->{LC_ALL};
1441 $env->{LC_CTYPE} = $self->{term}->locale; 1679 $env->{LC_CTYPE} = $self->{term}->locale;
1442 1680
1443 urxvt::term->new ($env, $self->{term}->resource ("name"), 1681 urxvt::term->new ($env, "popup",
1444 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1682 "--perl-lib" => "", "--perl-ext-common" => "",
1683 "-pty-fd" => -1, "-sl" => 0,
1684 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1445 "--transient-for" => $self->{term}->parent, 1685 "--transient-for" => $self->{term}->parent,
1446 "-display" => $self->{term}->display_id, 1686 "-display" => $self->{term}->display_id,
1447 "-pe" => "urxvt-popup") 1687 "-pe" => "urxvt-popup")
1448 or die "unable to create popup window\n"; 1688 or die "unable to create popup window\n";
1449} 1689}
1454 delete $self->{term}{_destroy}{$self}; 1694 delete $self->{term}{_destroy}{$self};
1455 $self->{term}->ungrab; 1695 $self->{term}->ungrab;
1456} 1696}
1457 1697
1458=back 1698=back
1699
1700=cut
1701
1702package urxvt::watcher;
1703
1704@urxvt::timer::ISA = __PACKAGE__;
1705@urxvt::iow::ISA = __PACKAGE__;
1706@urxvt::pw::ISA = __PACKAGE__;
1707@urxvt::iw::ISA = __PACKAGE__;
1459 1708
1460=head2 The C<urxvt::timer> Class 1709=head2 The C<urxvt::timer> Class
1461 1710
1462This class implements timer watchers/events. Time is represented as a 1711This class implements timer watchers/events. Time is represented as a
1463fractional number of seconds since the epoch. Example: 1712fractional number of seconds since the epoch. Example:
1501Start the timer. 1750Start the timer.
1502 1751
1503=item $timer = $timer->start ($tstamp) 1752=item $timer = $timer->start ($tstamp)
1504 1753
1505Set the event trigger time to C<$tstamp> and start the timer. 1754Set the event trigger time to C<$tstamp> and start the timer.
1755
1756=item $timer = $timer->after ($delay)
1757
1758Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1506 1759
1507=item $timer = $timer->stop 1760=item $timer = $timer->stop
1508 1761
1509Stop the timer. 1762Stop the timer.
1510 1763
1557 1810
1558Stop watching for events on the given filehandle. 1811Stop watching for events on the given filehandle.
1559 1812
1560=back 1813=back
1561 1814
1815=head2 The C<urxvt::iw> Class
1816
1817This class implements idle watchers, that get called automatically when
1818the process is idle. They should return as fast as possible, after doing
1819some useful work.
1820
1821=over 4
1822
1823=item $iw = new urxvt::iw
1824
1825Create a new idle watcher object in stopped state.
1826
1827=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1828
1829Set the callback to be called when the watcher triggers.
1830
1831=item $timer = $timer->start
1832
1833Start the watcher.
1834
1835=item $timer = $timer->stop
1836
1837Stop the watcher.
1838
1839=back
1840
1841=head2 The C<urxvt::pw> Class
1842
1843This class implements process watchers. They create an event whenever a
1844process exits, after which they stop automatically.
1845
1846 my $pid = fork;
1847 ...
1848 $term->{pw} = urxvt::pw
1849 ->new
1850 ->start ($pid)
1851 ->cb (sub {
1852 my ($pw, $exit_status) = @_;
1853 ...
1854 });
1855
1856=over 4
1857
1858=item $pw = new urxvt::pw
1859
1860Create a new process watcher in stopped state.
1861
1862=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1863
1864Set the callback to be called when the timer triggers.
1865
1866=item $pw = $timer->start ($pid)
1867
1868Tells the wqtcher to start watching for process C<$pid>.
1869
1870=item $pw = $pw->stop
1871
1872Stop the watcher.
1873
1874=back
1875
1562=head1 ENVIRONMENT 1876=head1 ENVIRONMENT
1563 1877
1564=head2 URXVT_PERL_VERBOSITY 1878=head2 URXVT_PERL_VERBOSITY
1565 1879
1566This variable controls the verbosity level of the perl extension. Higher 1880This variable controls the verbosity level of the perl extension. Higher
1570 1884
1571=item == 0 - fatal messages 1885=item == 0 - fatal messages
1572 1886
1573=item >= 3 - script loading and management 1887=item >= 3 - script loading and management
1574 1888
1575=item >=10 - all events received 1889=item >=10 - all called hooks
1890
1891=item >=11 - hook reutrn values
1576 1892
1577=back 1893=back
1578 1894
1579=head1 AUTHOR 1895=head1 AUTHOR
1580 1896

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