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Revision 1.19 by root, Tue Jan 3 02:42:17 2006 UTC vs.
Revision 1.68 by root, Mon Jan 9 20:00:31 2006 UTC

17 17
18 @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test 18 @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
19 19
20=head1 DESCRIPTION 20=head1 DESCRIPTION
21 21
22Everytime a terminal object gets created, scripts specified via the 22Everytime a terminal object gets created, extension scripts specified via
23C<perl> resource are loaded and associated with it. 23the C<perl> resource are loaded and associated with it.
24 24
25Scripts are compiled in a 'use strict' and 'use utf8' environment, and 25Scripts are compiled in a 'use strict' and 'use utf8' environment, and
26thus must be encoded as UTF-8. 26thus must be encoded as UTF-8.
27 27
28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where 28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
37 37
38 @@RXVT_NAME@@ -pe <extensionname> 38 @@RXVT_NAME@@ -pe <extensionname>
39 39
40=over 4 40=over 4
41 41
42=item selection 42=item selection (enabled by default)
43 43
44Miscellaneous selection modifications. 44Intelligent selection. This extension tries to be more intelligent when
45the user extends selections (double-click). Right now, it tries to select
46urls and complete shell-quoted arguments, which is very convenient, too,
47if your F<ls> supports C<--quoting-style=shell>.
48
49It also offers the following bindable event:
45 50
46=over 4 51=over 4
47 52
48=item rot13 53=item rot13
49 54
51 56
52 URxvt.keysym.C-M-r: perl:selection:rot13 57 URxvt.keysym.C-M-r: perl:selection:rot13
53 58
54=back 59=back
55 60
61=item option-popup (enabled by default)
62
63Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
64runtime.
65
66=item selection-popup (enabled by default)
67
68Binds a popup menu to Ctrl-Button3 that lets you convert the selection
69text into various other formats/action.
70
56=item digital-clock 71=item digital-clock
72
73Displays a digital clock using the built-in overlay.
74
75=item mark-urls
76
77Uses per-line display filtering (C<on_line_update>) to underline urls.
78
79=item block-graphics-to-ascii
80
81A not very useful example of filtering all text output to the terminal,
82by replacing all line-drawing characters (U+2500 .. U+259F) by a
83similar-looking ascii character.
84
85=item example-refresh-hooks
57 86
58Displays a very simple digital clock in the upper right corner of the 87Displays a very simple digital clock in the upper right corner of the
59window. Illustrates overwriting the refresh callbacks to create your own 88window. Illustrates overwriting the refresh callbacks to create your own
60overlays or changes. 89overlays or changes.
61 90
62=item simple-overlay-clock
63
64Displays a digital clock using the built-in overlay (colourful, useless).
65
66=back 91=back
67 92
68=head2 General API Considerations 93=head2 General API Considerations
69 94
70All objects (such as terminals, time watchers etc.) are typical 95All objects (such as terminals, time watchers etc.) are typical
71reference-to-hash objects. The hash can be used to store anything you 96reference-to-hash objects. The hash can be used to store anything you
72like. All members starting with an underscore (such as C<_ptr> or 97like. All members starting with an underscore (such as C<_ptr> or
73C<_hook>) are reserved for internal uses and must not be accessed or 98C<_hook>) are reserved for internal uses and B<MUST NOT> be accessed or
74modified). 99modified).
75 100
76When objects are destroyed on the C++ side, the perl object hashes are 101When objects are destroyed on the C++ side, the perl object hashes are
77emptied, so its best to store related objects such as time watchers and 102emptied, so its best to store related objects such as time watchers and
78the like inside the terminal object so they get destroyed as soon as the 103the like inside the terminal object so they get destroyed as soon as the
79terminal is destroyed. 104terminal is destroyed.
80 105
106Argument names also often indicate the type of a parameter. Here are some
107hints on what they mean:
108
109=over 4
110
111=item $text
112
113Rxvt-unicodes special way of encoding text, where one "unicode" character
114always represents one screen cell. See L<row_t> for a discussion of this format.
115
116=item $string
117
118A perl text string, with an emphasis on I<text>. It can store all unicode
119characters and is to be distinguished with text encoded in a specific
120encoding (often locale-specific) and binary data.
121
122=item $octets
123
124Either binary data or - more common - a text string encoded in a
125locale-specific way.
126
127=back
128
81=head2 Hooks 129=head2 Hooks
82 130
83The following subroutines can be declared in loaded scripts, and will be called 131The following subroutines can be declared in extension files, and will be
84whenever the relevant event happens. 132called whenever the relevant event happens.
133
134The first argument passed to them is an object private to each terminal
135and extension package. You can call all C<urxvt::term> methods on it, but
136its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
137object that is shared between all packages is stored in the C<term>
138member. It is, however, blessed intot he package of the extension script,
139so for all practical purposes you can treat an extension script as a class.
85 140
86All of them must return a boolean value. If it is true, then the event 141All of them must return a boolean value. If it is true, then the event
87counts as being I<consumed>, and the invocation of other hooks is skipped, 142counts as being I<consumed>, and the invocation of other hooks is skipped,
88and the relevant action might not be carried out by the C++ code. 143and the relevant action might not be carried out by the C++ code.
89 144
92=over 4 147=over 4
93 148
94=item on_init $term 149=item on_init $term
95 150
96Called after a new terminal object has been initialized, but before 151Called after a new terminal object has been initialized, but before
97windows are created or the command gets run. 152windows are created or the command gets run. Most methods are unsafe to
153call or deliver senseless data, as terminal size and other characteristics
154have not yet been determined. You can safely query and change resources,
155though.
98 156
99=item on_reset $term 157=item on_reset $term
100 158
101Called after the screen is "reset" for any reason, such as resizing or 159Called after the screen is "reset" for any reason, such as resizing or
102control sequences. Here is where you can react on changes to size-related 160control sequences. Here is where you can react on changes to size-related
122requested from the server. The selection text can be queried and changed 180requested from the server. The selection text can be queried and changed
123by calling C<< $term->selection >>. 181by calling C<< $term->selection >>.
124 182
125Returning a true value aborts selection grabbing. It will still be hilighted. 183Returning a true value aborts selection grabbing. It will still be hilighted.
126 184
127=item on_focus_in $term 185=item on_sel_extend $term
128 186
129Called whenever the window gets the keyboard focus, before urxvt does 187Called whenever the user tries to extend the selection (e.g. with a double
130focus in processing. 188click) and is either supposed to return false (normal operation), or
131 189should extend the selection itelf and return true to suppress the built-in
132=item on_focus_out $term
133
134Called wheneever the window loses keyboard focus, before urxvt does focus
135out processing. 190processing.
191
192See the F<selection> example extension.
136 193
137=item on_view_change $term, $offset 194=item on_view_change $term, $offset
138 195
139Called whenever the view offset changes, i..e the user or program 196Called whenever the view offset changes, i..e the user or program
140scrolls. Offset C<0> means display the normal terminal, positive values 197scrolls. Offset C<0> means display the normal terminal, positive values
148 205
149It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 206It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
150$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total 207$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
151number of lines that will be in the scrollback buffer. 208number of lines that will be in the scrollback buffer.
152 209
153=item on_tty_activity $term *NYI* 210=item on_osc_seq $term, $string
154 211
155Called whenever the program(s) running in the urxvt window send output. 212Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
213operating system command) is processed. Cursor position and other state
214information is up-to-date when this happens. For interoperability, the
215string should start with the extension name and a colon, to distinguish
216it from commands for other extensions, and this might be enforced in the
217future.
218
219Be careful not ever to trust (in a security sense) the data you receive,
220as its source can not easily be controleld (e-mail content, messages from
221other users on the same system etc.).
222
223=item on_add_lines $term, $string
224
225Called whenever text is about to be output, with the text as argument. You
226can filter/change and output the text yourself by returning a true value
227and calling C<< $term->scr_add_lines >> yourself. Please note that this
228might be very slow, however, as your hook is called for B<all> text being
229output.
230
231=item on_line_update $term, $row
232
233Called whenever a line was updated or changed. Can be used to filter
234screen output (e.g. underline urls or other useless stuff). Only lines
235that are being shown will be filtered, and, due to performance reasons,
236not always immediately.
237
238The row number is always the topmost row of the line if the line spans
239multiple rows.
240
241Please note that, if you change the line, then the hook might get called
242later with the already-modified line (e.g. if unrelated parts change), so
243you cannot just toggle rendition bits, but only set them.
156 244
157=item on_refresh_begin $term 245=item on_refresh_begin $term
158 246
159Called just before the screen gets redrawn. Can be used for overlay 247Called just before the screen gets redrawn. Can be used for overlay
160or similar effects by modify terminal contents in refresh_begin, and 248or similar effects by modify terminal contents in refresh_begin, and
169 257
170Called whenever the user presses a key combination that has a 258Called whenever the user presses a key combination that has a
171C<perl:string> action bound to it (see description of the B<keysym> 259C<perl:string> action bound to it (see description of the B<keysym>
172resource in the @@RXVT_NAME@@(1) manpage). 260resource in the @@RXVT_NAME@@(1) manpage).
173 261
262=item on_focus_in $term
263
264Called whenever the window gets the keyboard focus, before rxvt-unicode
265does focus in processing.
266
267=item on_focus_out $term
268
269Called wheneever the window loses keyboard focus, before rxvt-unicode does
270focus out processing.
271
272=item on_key_press $term, $event, $octets
273
274=item on_key_release $term, $event
275
276=item on_button_press $term, $event
277
278=item on_button_release $term, $event
279
280=item on_motion_notify $term, $event
281
282=item on_map_notify $term, $event
283
284=item on_unmap_notify $term, $event
285
286Called whenever the corresponding X event is received for the terminal If
287the hook returns true, then the even will be ignored by rxvt-unicode.
288
289The event is a hash with most values as named by Xlib (see the XEvent
290manpage), with the additional members C<row> and C<col>, which are the row
291and column under the mouse cursor.
292
293C<on_key_press> additionally receives the string rxvt-unicode would
294output, if any, in locale-specific encoding.
295
296subwindow.
297
174=back 298=back
175 299
300=head2 Variables in the C<urxvt> Package
301
302=over 4
303
304=item $urxvt::TERM
305
306The current terminal. This variable stores the current C<urxvt::term>
307object, whenever a callback/hook is executing.
308
309=back
310
176=head2 Functions in the C<urxvt> Package 311=head2 Functions in the C<urxvt> Package
177 312
178=over 4 313=over 4
314
315=item $term = new urxvt [arg...]
316
317Creates a new terminal, very similar as if you had started it with
318C<system $binfile, arg...>. Croaks (and probably outputs an error message)
319if the new instance couldn't be created. Returns C<undef> if the new
320instance didn't initialise perl, and the terminal object otherwise. The
321C<init> and C<start> hooks will be called during the call.
179 322
180=item urxvt::fatal $errormessage 323=item urxvt::fatal $errormessage
181 324
182Fatally aborts execution with the given error message. Avoid at all 325Fatally aborts execution with the given error message. Avoid at all
183costs! The only time this is acceptable is when the terminal process 326costs! The only time this is acceptable is when the terminal process
190that calls this function. 333that calls this function.
191 334
192Using this function has the advantage that its output ends up in the 335Using this function has the advantage that its output ends up in the
193correct place, e.g. on stderr of the connecting urxvtc client. 336correct place, e.g. on stderr of the connecting urxvtc client.
194 337
338=item $is_safe = urxvt::safe
339
340Returns true when it is safe to do potentially unsafe things, such as
341evaluating perl code specified by the user. This is true when urxvt was
342started setuid or setgid.
343
195=item $time = urxvt::NOW 344=item $time = urxvt::NOW
196 345
197Returns the "current time" (as per the event loop). 346Returns the "current time" (as per the event loop).
347
348=item urxvt::CurrentTime
349
350=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
351Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
352Button4Mask, Button5Mask, AnyModifier
353
354Various constants for use in X calls and event processing.
355
356=back
198 357
199=head2 RENDITION 358=head2 RENDITION
200 359
201Rendition bitsets contain information about colour, font, font styles and 360Rendition bitsets contain information about colour, font, font styles and
202similar information for each screen cell. 361similar information for each screen cell.
250 409
251=cut 410=cut
252 411
253package urxvt; 412package urxvt;
254 413
414use utf8;
255use strict; 415use strict;
416use Scalar::Util ();
417use List::Util ();
256 418
257our $term; 419our $VERSION = 1;
420our $TERM;
258our @HOOKNAME; 421our @HOOKNAME;
422our %OPTION;
259our $LIBDIR; 423our $LIBDIR;
260 424
261BEGIN { 425BEGIN {
262 urxvt->bootstrap; 426 urxvt->bootstrap;
263 427
266 my $msg = join "", @_; 430 my $msg = join "", @_;
267 $msg .= "\n" 431 $msg .= "\n"
268 unless $msg =~ /\n$/; 432 unless $msg =~ /\n$/;
269 urxvt::warn ($msg); 433 urxvt::warn ($msg);
270 }; 434 };
435
436 delete $ENV{IFS};
437 delete $ENV{CDPATH};
438 delete $ENV{BASH_ENV};
439 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
271} 440}
272 441
273my @hook_count; 442my @hook_count;
274my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 443my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
275 444
276sub verbose { 445sub verbose {
277 my ($level, $msg) = @_; 446 my ($level, $msg) = @_;
278 warn "$msg\n" if $level <= $verbosity; 447 warn "$msg\n" if $level <= $verbosity;
279} 448}
280 449
281# find on_xxx subs in the package and register them 450my $extension_pkg = "extension0000";
282# as hooks 451my %extension_pkg;
283sub register_package($) {
284 my ($pkg) = @_;
285
286 for my $htype (0.. $#HOOKNAME) {
287 my $name = $HOOKNAME[$htype];
288
289 my $ref = $pkg->can ("on_" . lc $name)
290 or next;
291
292 $term->{_hook}[$htype]{$ref*1} = $ref;
293 $hook_count[$htype]++
294 or set_should_invoke $htype, 1;
295 }
296}
297
298my $script_pkg = "script0000";
299my %script_pkg;
300 452
301# load a single script into its own package, once only 453# load a single script into its own package, once only
302sub script_package($) { 454sub extension_package($) {
303 my ($path) = @_; 455 my ($path) = @_;
304 456
305 $script_pkg{$path} ||= do { 457 $extension_pkg{$path} ||= do {
306 my $pkg = "urxvt::" . ($script_pkg++); 458 my $pkg = "urxvt::" . ($extension_pkg++);
307 459
308 verbose 3, "loading script '$path' into package '$pkg'"; 460 verbose 3, "loading extension '$path' into package '$pkg'";
309 461
310 open my $fh, "<:raw", $path 462 open my $fh, "<:raw", $path
311 or die "$path: $!"; 463 or die "$path: $!";
312 464
313 my $source = "package $pkg; use strict; use utf8;\n" 465 my $source = untaint "package $pkg; use strict; use utf8;\n"
466 . "use base urxvt::term::proxy::;\n"
314 . "#line 1 \"$path\"\n{\n" 467 . "#line 1 \"$path\"\n{\n"
315 . (do { local $/; <$fh> }) 468 . (do { local $/; <$fh> })
316 . "\n};\n1"; 469 . "\n};\n1";
317 470
318 eval $source or die "$path: $@"; 471 eval $source or die "$path: $@";
319 472
320 $pkg 473 $pkg
321 } 474 }
322} 475}
323 476
477our $retval; # return value for urxvt
478
324# called by the rxvt core 479# called by the rxvt core
325sub invoke { 480sub invoke {
326 local $term = shift; 481 local $TERM = shift;
327 my $htype = shift; 482 my $htype = shift;
328 483
329 if ($htype == 0) { # INIT 484 if ($htype == 0) { # INIT
330 my @dirs = ((split /:/, $term->resource ("perl_lib")), "$LIBDIR/perl"); 485 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
486
487 my %ext_arg;
331 488
332 for my $ext (split /:/, $term->resource ("perl_ext")) { 489 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
490 if ($_ eq "default") {
491 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup);
492 } elsif (/^-(.*)$/) {
493 delete $ext_arg{$1};
494 } elsif (/^([^<]+)<(.*)>$/) {
495 push @{ $ext_arg{$1} }, $2;
496 } else {
497 $ext_arg{$_} ||= [];
498 }
499 }
500
501 while (my ($ext, $argv) = each %ext_arg) {
333 my @files = grep -f $_, map "$_/$ext", @dirs; 502 my @files = grep -f $_, map "$_/$ext", @dirs;
334 503
335 if (@files) { 504 if (@files) {
336 register_package script_package $files[0]; 505 $TERM->register_package (extension_package $files[0], $argv);
337 } else { 506 } else {
338 warn "perl extension '$ext' not found in perl library search path\n"; 507 warn "perl extension '$ext' not found in perl library search path\n";
339 } 508 }
340 } 509 }
341 510
511 eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
512 warn $@ if $@;
513 }
514
515 $retval = undef;
516
517 if (my $cb = $TERM->{_hook}[$htype]) {
518 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
519 if $verbosity >= 10;
520
521 keys %$cb;
522
523 while (my ($pkg, $cb) = each %$cb) {
524 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }
525 and last;
526
527 if ($@) {
528 $TERM->ungrab; # better to lose the grab than the session
529 warn $@;
530 }
531 }
532 }
533
342 } elsif ($htype == 1) { # DESTROY 534 if ($htype == 1) { # DESTROY
535 # remove hooks if unused
343 if (my $hook = $term->{_hook}) { 536 if (my $hook = $TERM->{_hook}) {
344 for my $htype (0..$#$hook) { 537 for my $htype (0..$#$hook) {
345 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 538 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
346 or set_should_invoke $htype, 0; 539 or set_should_invoke $htype, 0;
347 } 540 }
348 } 541 }
542
543 # clear package objects
544 %$_ = () for values %{ $TERM->{_pkg} };
545
546 # clear package
547 %$TERM = ();
349 } 548 }
350 549
351 my $cb = $term->{_hook}[$htype] 550 $retval
352 or return; 551}
353 552
354 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")" 553# urxvt::term::proxy
355 if $verbosity >= 10;
356 554
357 while (my ($k, $v) = each %$cb) { 555sub urxvt::term::proxy::AUTOLOAD {
358 return 1 if $v->($term, @_); 556 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/
557 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";
558
559 eval qq{
560 sub $urxvt::term::proxy::AUTOLOAD {
561 my \$proxy = shift;
562 \$proxy->{term}->$1 (\@_)
563 }
564 1
565 } or die "FATAL: unable to compile method forwarder: $@";
566
567 goto &$urxvt::term::proxy::AUTOLOAD;
568}
569
570sub urxvt::term::proxy::DESTROY {
571 # nop
572}
573
574# urxvt::destroy_hook
575
576sub urxvt::destroy_hook::DESTROY {
577 ${$_[0]}->();
578}
579
580sub urxvt::destroy_hook(&) {
581 bless \shift, urxvt::destroy_hook::
582}
583
584package urxvt::anyevent;
585
586=head2 The C<urxvt::anyevent> Class
587
588The sole purpose of this class is to deliver an interface to the
589C<AnyEvent> module - any module using it will work inside urxvt without
590further work. The only exception is that you cannot wait on condition
591variables, but non-blocking condvar use is ok. What this means is that you
592cannot use blocking APIs, but the non-blocking variant should work.
593
594=cut
595
596our $VERSION = 1;
597
598$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
599push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
600
601sub timer {
602 my ($class, %arg) = @_;
603
604 my $cb = $arg{cb};
605
606 urxvt::timer
607 ->new
608 ->start (urxvt::NOW + $arg{after})
609 ->cb (sub {
610 $_[0]->stop; # need to cancel manually
611 $cb->();
612 })
613}
614
615sub io {
616 my ($class, %arg) = @_;
617
618 my $cb = $arg{cb};
619
620 bless [$arg{fh}, urxvt::iow
621 ->new
622 ->fd (fileno $arg{fh})
623 ->events (($arg{poll} =~ /r/ ? 1 : 0)
624 | ($arg{poll} =~ /w/ ? 2 : 0))
625 ->start
626 ->cb (sub {
627 $cb->(($_[1] & 1 ? 'r' : '')
628 . ($_[1] & 2 ? 'w' : ''));
629 })],
630 urxvt::anyevent::
631}
632
633sub DESTROY {
634 $_[0][1]->stop;
635}
636
637sub condvar {
638 bless \my $flag, urxvt::anyevent::condvar::
639}
640
641sub urxvt::anyevent::condvar::broadcast {
642 ${$_[0]}++;
643}
644
645sub urxvt::anyevent::condvar::wait {
646 unless (${$_[0]}) {
647 require Carp;
648 Carp::croak ("AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API");
359 } 649 }
360
361 0
362} 650}
363 651
364=back 652package urxvt::term;
365 653
366=head2 The C<urxvt::term> Class 654=head2 The C<urxvt::term> Class
367 655
368=over 4 656=over 4
657
658=cut
659
660# find on_xxx subs in the package and register them
661# as hooks
662sub register_package {
663 my ($self, $pkg, $argv) = @_;
664
665 my $proxy = bless { argv => $argv }, $pkg;
666 Scalar::Util::weaken ($proxy->{term} = $TERM);
667
668 $self->{_pkg}{$pkg} = $proxy;
669
670 for my $htype (0.. $#HOOKNAME) {
671 my $name = $HOOKNAME[$htype];
672
673 my $ref = $pkg->can ("on_" . lc $name)
674 or next;
675
676 $self->{_hook}[$htype]{$pkg} = $ref;
677 $hook_count[$htype]++
678 or urxvt::set_should_invoke $htype, 1;
679 }
680}
681
682=item $term->destroy
683
684Destroy the terminal object (close the window, free resources etc.).
685
686=item $isset = $term->option ($optval[, $set])
687
688Returns true if the option specified by C<$optval> is enabled, and
689optionally change it. All option values are stored by name in the hash
690C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
691
692Here is a a likely non-exhaustive list of option names, please see the
693source file F</src/optinc.h> to see the actual list:
694
695 borderLess console cursorBlink cursorUnderline hold iconic insecure
696 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
697 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating
698 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer
699 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent
700 tripleclickwords utmpInhibit visualBell
369 701
370=item $value = $term->resource ($name[, $newval]) 702=item $value = $term->resource ($name[, $newval])
371 703
372Returns the current resource value associated with a given name and 704Returns the current resource value associated with a given name and
373optionally sets a new value. Setting values is most useful in the C<init> 705optionally sets a new value. Setting values is most useful in the C<init>
383 715
384Please note that resource strings will currently only be freed when the 716Please note that resource strings will currently only be freed when the
385terminal is destroyed, so changing options frequently will eat memory. 717terminal is destroyed, so changing options frequently will eat memory.
386 718
387Here is a a likely non-exhaustive list of resource names, not all of which 719Here is a a likely non-exhaustive list of resource names, not all of which
388are supported in every build, please see the source to see the actual 720are supported in every build, please see the source file F</src/rsinc.h>
389list: 721to see the actual list:
390 722
391 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 723 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
392 borderLess color cursorBlink cursorUnderline cutchars delete_key 724 borderLess color cursorBlink cursorUnderline cutchars delete_key
393 display_name embed ext_bwidth fade font geometry hold iconName 725 display_name embed ext_bwidth fade font geometry hold iconName
394 imFont imLocale inputMethod insecure int_bwidth intensityStyles 726 imFont imLocale inputMethod insecure int_bwidth intensityStyles
395 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 727 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
396 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext 728 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
397 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 729 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
398 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 730 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
399 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 731 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
400 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 732 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
401 shade term_name title transparent transparent_all tripleclickwords 733 shade term_name title transparent transparent_all tripleclickwords
402 utmpInhibit visualBell 734 utmpInhibit visualBell
403 735
404=cut 736=cut
405 737
406sub urxvt::term::resource($$;$) { 738sub resource($$;$) {
407 my ($self, $name) = (shift, shift); 739 my ($self, $name) = (shift, shift);
408 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 740 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
409 goto &urxvt::term::_resource; 741 &urxvt::term::_resource
410} 742}
743
744=item $rend = $term->rstyle ([$new_rstyle])
745
746Return and optionally change the current rendition. Text that is output by
747the terminal application will use this style.
748
749=item ($row, $col) = $term->screen_cur ([$row, $col])
750
751Return the current coordinates of the text cursor position and optionally
752set it (which is usually bad as applications don't expect that).
411 753
412=item ($row, $col) = $term->selection_mark ([$row, $col]) 754=item ($row, $col) = $term->selection_mark ([$row, $col])
413 755
414=item ($row, $col) = $term->selection_beg ([$row, $col]) 756=item ($row, $col) = $term->selection_beg ([$row, $col])
415 757
425 767
426=item $oldtext = $term->selection ([$newtext]) 768=item $oldtext = $term->selection ([$newtext])
427 769
428Return the current selection text and optionally replace it by C<$newtext>. 770Return the current selection text and optionally replace it by C<$newtext>.
429 771
430=item $term->scr_overlay ($x, $y, $text) 772#=item $term->overlay ($x, $y, $text)
431 773#
432Create a simple multi-line overlay box. See the next method for details. 774#Create a simple multi-line overlay box. See the next method for details.
775#
776#=cut
777#
778#sub urxvt::term::scr_overlay {
779# my ($self, $x, $y, $text) = @_;
780#
781# my @lines = split /\n/, $text;
782#
783# my $w = 0;
784# for (map $self->strwidth ($_), @lines) {
785# $w = $_ if $w < $_;
786# }
787#
788# $self->scr_overlay_new ($x, $y, $w, scalar @lines);
789# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
790#}
791
792=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
793
794Create a new (empty) overlay at the given position with the given
795width/height. C<$rstyle> defines the initial rendition style
796(default: C<OVERLAY_RSTYLE>).
797
798If C<$border> is C<2> (default), then a decorative border will be put
799around the box.
800
801If either C<$x> or C<$y> is negative, then this is counted from the
802right/bottom side, respectively.
803
804This method returns an urxvt::overlay object. The overlay will be visible
805as long as the perl object is referenced.
806
807The methods currently supported on C<urxvt::overlay> objects are:
808
809=over 4
810
811=item $overlay->set ($x, $y, $text, $rend)
812
813Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
814text in rxvt-unicode's special encoding and an array of rendition values
815at a specific position inside the overlay.
816
817=item $overlay->hide
818
819If visible, hide the overlay, but do not destroy it.
820
821=item $overlay->show
822
823If hidden, display the overlay again.
824
825=back
826
827=item $popup = $term->popup ($event)
828
829Creates a new C<urxvt::popup> object that implements a popup menu. The
830C<$event> I<must> be the event causing the menu to pop up (a button event,
831currently).
433 832
434=cut 833=cut
435 834
436sub urxvt::term::scr_overlay { 835sub popup {
437 my ($self, $x, $y, $text) = @_; 836 my ($self, $event) = @_;
438 837
439 my @lines = split /\n/, $text; 838 $self->grab ($event->{time}, 1)
839 or return;
440 840
441 my $w = 0; 841 my $popup = bless {
442 for (map $self->strwidth ($_), @lines) { 842 term => $self,
443 $w = $_ if $w < $_; 843 event => $event,
444 } 844 }, urxvt::popup::;
445 845
446 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 846 Scalar::Util::weaken $popup->{term};
447 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
448}
449 847
450=item $term->scr_overlay_new ($x, $y, $width, $height) 848 $self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
849 Scalar::Util::weaken $self->{_destroy}{$popup};
451 850
452Create a new (empty) overlay at the given position with the given 851 $popup
453width/height. A border will be put around the box. If either C<$x> or 852}
454C<$y> is negative, then this is counted from the right/bottom side,
455respectively.
456 853
457=item $term->scr_overlay_off
458
459Switch the overlay off again.
460
461=item $term->scr_overlay_set_char ($x, $y, $char, $rend = OVERLAY_RSTYLE)
462
463Put a single character (specified numerically) at the given overlay
464position.
465
466=item $term->scr_overlay_set ($x, $y, $text)
467
468Write a string at the given position into the overlay.
469
470=item $cellwidth = $term->strwidth $string 854=item $cellwidth = $term->strwidth ($string)
471 855
472Returns the number of screen-cells this string would need. Correctly 856Returns the number of screen-cells this string would need. Correctly
473accounts for wide and combining characters. 857accounts for wide and combining characters.
474 858
475=item $octets = $term->locale_encode $string 859=item $octets = $term->locale_encode ($string)
476 860
477Convert the given text string into the corresponding locale encoding. 861Convert the given text string into the corresponding locale encoding.
478 862
479=item $string = $term->locale_decode $octets 863=item $string = $term->locale_decode ($octets)
480 864
481Convert the given locale-encoded octets into a perl string. 865Convert the given locale-encoded octets into a perl string.
866
867=item $term->scr_add_lines ($string)
868
869Write the given text string to the screen, as if output by the application
870running inside the terminal. It may not contain command sequences (escape
871codes), but is free to use line feeds, carriage returns and tabs. The
872string is a normal text string, not in locale-dependent encoding.
873
874Normally its not a good idea to use this function, as programs might be
875confused by changes in cursor position or scrolling. Its useful inside a
876C<on_add_lines> hook, though.
877
878=item $term->cmd_parse ($octets)
879
880Similar to C<scr_add_lines>, but the argument must be in the
881locale-specific encoding of the terminal and can contain command sequences
882(escape codes) that will be interpreted.
482 883
483=item $term->tt_write ($octets) 884=item $term->tt_write ($octets)
484 885
485Write the octets given in C<$data> to the tty (i.e. as program input). To 886Write the octets given in C<$data> to the tty (i.e. as program input). To
486pass characters instead of octets, you should convert your strings first 887pass characters instead of octets, you should convert your strings first
487to the locale-specific encoding using C<< $term->locale_encode >>. 888to the locale-specific encoding using C<< $term->locale_encode >>.
488 889
890=item $windowid = $term->parent
891
892Return the window id of the toplevel window.
893
894=item $windowid = $term->vt
895
896Return the window id of the terminal window.
897
898=item $window_width = $term->width
899
900=item $window_height = $term->height
901
902=item $font_width = $term->fwidth
903
904=item $font_height = $term->fheight
905
906=item $font_ascent = $term->fbase
907
489=item $nrow = $term->nrow 908=item $terminal_rows = $term->nrow
490 909
491=item $ncol = $term->ncol 910=item $terminal_columns = $term->ncol
492 911
493Return the number of rows/columns of the terminal window (i.e. as 912=item $has_focus = $term->focus
494specified by C<-geometry>, excluding any scrollback).
495 913
496=item $nsaved = $term->nsaved 914=item $is_mapped = $term->mapped
497 915
498Returns the number of lines in the scrollback buffer. 916=item $max_scrollback = $term->saveLines
917
918=item $nrow_plus_saveLines = $term->total_rows
919
920=item $lines_in_scrollback = $term->nsaved
921
922Return various integers describing terminal characteristics.
923
924=item $lc_ctype = $term->locale
925
926Returns the LC_CTYPE category string used by this rxvt-unicode.
927
928=item $x_display = $term->display_id
929
930Return the DISPLAY used by rxvt-unicode.
931
932=item $modifiermask = $term->ModLevel3Mask
933
934=item $modifiermask = $term->ModMetaMask
935
936=item $modifiermask = $term->ModNumLockMask
937
938Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
939AltGr), the meta key (often Alt) and the num lock key, if applicable.
499 940
500=item $view_start = $term->view_start ([$newvalue]) 941=item $view_start = $term->view_start ([$newvalue])
501 942
502Returns the negative row number of the topmost line. Minimum value is 943Returns the negative row number of the topmost line. Minimum value is
503C<0>, which displays the normal terminal contents. Larger values scroll 944C<0>, which displays the normal terminal contents. Larger values scroll
514=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) 955=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
515 956
516Returns the text of the entire row with number C<$row_number>. Row C<0> 957Returns the text of the entire row with number C<$row_number>. Row C<0>
517is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost 958is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost
518terminal line. The scrollback buffer starts at line C<-1> and extends to 959terminal line. The scrollback buffer starts at line C<-1> and extends to
519line C<< -$term->nsaved >>. 960line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line
961is requested.
520 962
521If C<$new_text> is specified, it will replace characters in the current 963If C<$new_text> is specified, it will replace characters in the current
522line, starting at column C<$start_col> (default C<0>), which is useful 964line, starting at column C<$start_col> (default C<0>), which is useful
523to replace only parts of a line. The font index in the rendition will 965to replace only parts of a line. The font index in the rendition will
524automatically be updated. 966automatically be updated.
546 988
547See the section on RENDITION, above. 989See the section on RENDITION, above.
548 990
549=item $length = $term->ROW_l ($row_number[, $new_length]) 991=item $length = $term->ROW_l ($row_number[, $new_length])
550 992
551Returns the number of screen cells that are in use ("the line length"). If 993Returns the number of screen cells that are in use ("the line
552it is C<-1>, then the line is part of a multiple-row logical "line", which 994length"). Unlike the urxvt core, this returns C<< $term->ncol >> if the
553means all characters are in use and it is continued on the next row. 995line is joined with the following one.
996
997=item $bool = $term->is_longer ($row_number)
998
999Returns true if the row is part of a multiple-row logical "line" (i.e.
1000joined with the following row), which means all characters are in use
1001and it is continued on the next row (and possibly a continuation of the
1002previous row(s)).
1003
1004=item $line = $term->line ($row_number)
1005
1006Create and return a new C<urxvt::line> object that stores information
1007about the logical line that row C<$row_number> is part of. It supports the
1008following methods:
1009
1010=over 4
1011
1012=item $text = $line->t ([$new_text])
1013
1014Returns or replaces the full text of the line, similar to C<ROW_t>
1015
1016=item $rend = $line->r ([$new_rend])
1017
1018Returns or replaces the full rendition array of the line, similar to C<ROW_r>
1019
1020=item $length = $line->l
1021
1022Returns the length of the line in cells, similar to C<ROW_l>.
1023
1024=item $rownum = $line->beg
1025
1026=item $rownum = $line->end
1027
1028Return the row number of the first/last row of the line, respectively.
1029
1030=item $offset = $line->offset_of ($row, $col)
1031
1032Returns the character offset of the given row|col pair within the logical
1033line.
1034
1035=item ($row, $col) = $line->coord_of ($offset)
1036
1037Translates a string offset into terminal coordinates again.
1038
1039=back
1040
1041=cut
1042
1043sub line {
1044 my ($self, $row) = @_;
1045
1046 my $maxrow = $self->nrow - 1;
1047
1048 my ($beg, $end) = ($row, $row);
1049
1050 --$beg while $self->ROW_is_longer ($beg - 1);
1051 ++$end while $self->ROW_is_longer ($end) && $end < $maxrow;
1052
1053 bless {
1054 term => $self,
1055 beg => $beg,
1056 end => $end,
1057 ncol => $self->ncol,
1058 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
1059 }, urxvt::line::
1060}
1061
1062sub urxvt::line::t {
1063 my ($self) = @_;
1064
1065 if (@_ > 1)
1066 {
1067 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
1068 for $self->{beg} .. $self->{end};
1069 }
1070
1071 defined wantarray &&
1072 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
1073 0, $self->{len}
1074}
1075
1076sub urxvt::line::r {
1077 my ($self) = @_;
1078
1079 if (@_ > 1)
1080 {
1081 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
1082 for $self->{beg} .. $self->{end};
1083 }
1084
1085 if (defined wantarray) {
1086 my $rend = [
1087 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
1088 ];
1089 $#$rend = $self->{len} - 1;
1090 return $rend;
1091 }
1092
1093 ()
1094}
1095
1096sub urxvt::line::beg { $_[0]{beg} }
1097sub urxvt::line::end { $_[0]{end} }
1098sub urxvt::line::l { $_[0]{len} }
1099
1100sub urxvt::line::offset_of {
1101 my ($self, $row, $col) = @_;
1102
1103 ($row - $self->{beg}) * $self->{ncol} + $col
1104}
1105
1106sub urxvt::line::coord_of {
1107 my ($self, $offset) = @_;
1108
1109 use integer;
1110
1111 (
1112 $offset / $self->{ncol} + $self->{beg},
1113 $offset % $self->{ncol}
1114 )
1115}
554 1116
555=item $text = $term->special_encode $string 1117=item $text = $term->special_encode $string
556 1118
557Converts a perl string into the special encoding used by rxvt-unicode, 1119Converts a perl string into the special encoding used by rxvt-unicode,
558where one character corresponds to one screen cell. See 1120where one character corresponds to one screen cell. See
561=item $string = $term->special_decode $text 1123=item $string = $term->special_decode $text
562 1124
563Converts rxvt-unicodes text reprsentation into a perl string. See 1125Converts rxvt-unicodes text reprsentation into a perl string. See
564C<< $term->ROW_t >> for details. 1126C<< $term->ROW_t >> for details.
565 1127
1128=item $success = $term->grab_button ($button, $modifiermask)
1129
1130Registers a synchronous button grab. See the XGrabButton manpage.
1131
1132=item $success = $term->grab ($eventtime[, $sync])
1133
1134Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1135synchronous (C<$sync> is true). Also remembers the grab timestampe.
1136
1137=item $term->allow_events_async
1138
1139Calls XAllowEvents with AsyncBoth for the most recent grab.
1140
1141=item $term->allow_events_sync
1142
1143Calls XAllowEvents with SyncBoth for the most recent grab.
1144
1145=item $term->allow_events_replay
1146
1147Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1148recent grab.
1149
1150=item $term->ungrab
1151
1152Calls XUngrab for the most recent grab. Is called automatically on
1153evaluation errors, as it is better to lose the grab in the error case as
1154the session.
1155
566=back 1156=back
1157
1158=cut
1159
1160package urxvt::popup;
1161
1162=head2 The C<urxvt::popup> Class
1163
1164=over 4
1165
1166=cut
1167
1168sub add_item {
1169 my ($self, $item) = @_;
1170
1171 $item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
1172 $item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
1173 $item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
1174
1175 $item->{render} ||= sub { $_[0]{text} };
1176
1177 push @{ $self->{item} }, $item;
1178}
1179
1180sub add_separator {
1181 my ($self, $sep) = @_;
1182
1183 $sep ||= "=";
1184
1185 $self->add_item ({
1186 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1187 text => "",
1188 render => sub { $sep x $self->{term}->ncol },
1189 activate => sub { },
1190 });
1191}
1192
1193sub add_title {
1194 my ($self, $title) = @_;
1195
1196 $self->add_item ({
1197 rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
1198 text => $title,
1199 activate => sub { },
1200 });
1201}
1202
1203sub add_button {
1204 my ($self, $text, $cb) = @_;
1205
1206 $self->add_item ({ type => "button", text => $text, activate => $cb});
1207}
1208
1209sub add_toggle {
1210 my ($self, $text, $cb, $value) = @_;
1211
1212 my $item; $item = {
1213 type => "button",
1214 text => " $text",
1215 value => $value,
1216 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1217 activate => sub { $cb->($_[0]{value} = !$_[0]{value}); },
1218 };
1219
1220 $self->add_item ($item);
1221}
1222
1223sub show {
1224 my ($self) = @_;
1225
1226 local $urxvt::popup::self = $self;
1227
1228 local $ENV{LC_ALL} = $self->{term}->locale;
1229
1230 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,
1231 "--transient-for" => $self->{term}->parent,
1232 "-display" => $self->{term}->display_id,
1233 "-pe" => "urxvt-popup")
1234 or die "unable to create popup window\n";
1235}
1236
1237sub DESTROY {
1238 my ($self) = @_;
1239
1240 delete $self->{term}{_destroy}{$self};
1241 $self->{term}->ungrab;
1242}
567 1243
568=head2 The C<urxvt::timer> Class 1244=head2 The C<urxvt::timer> Class
569 1245
570This class implements timer watchers/events. Time is represented as a 1246This class implements timer watchers/events. Time is represented as a
571fractional number of seconds since the epoch. Example: 1247fractional number of seconds since the epoch. Example:
572 1248
573 # create a digital clock display in upper right corner 1249 $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
574 $term->{timer} = urxvt::timer 1250 $term->{timer} = urxvt::timer
575 ->new 1251 ->new
576 ->start (urxvt::NOW) 1252 ->interval (1)
577 ->cb (sub { 1253 ->cb (sub {
578 my ($timer) = @_;
579 my $time = $timer->at;
580 $timer->start ($time + 1);
581 $self->scr_overlay (-1, 0, 1254 $term->{overlay}->set (0, 0,
582 POSIX::strftime "%H:%M:%S", localtime $time); 1255 sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
583 }); 1256 });
584 1257
585=over 4 1258=over 4
586 1259
587=item $timer = new urxvt::timer 1260=item $timer = new urxvt::timer
588 1261
589Create a new timer object in stopped state. 1262Create a new timer object in started state. It is scheduled to fire
1263immediately.
590 1264
591=item $timer = $timer->cb (sub { my ($timer) = @_; ... }) 1265=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
592 1266
593Set the callback to be called when the timer triggers. 1267Set the callback to be called when the timer triggers.
594 1268
597Return the time this watcher will fire next. 1271Return the time this watcher will fire next.
598 1272
599=item $timer = $timer->set ($tstamp) 1273=item $timer = $timer->set ($tstamp)
600 1274
601Set the time the event is generated to $tstamp. 1275Set the time the event is generated to $tstamp.
1276
1277=item $timer = $timer->interval ($interval)
1278
1279Normally (and when C<$interval> is C<0>), the timer will automatically
1280stop after it has fired once. If C<$interval> is non-zero, then the timer
1281is automatically rescheduled at the given intervals.
602 1282
603=item $timer = $timer->start 1283=item $timer = $timer->start
604 1284
605Start the timer. 1285Start the timer.
606 1286
669This variable controls the verbosity level of the perl extension. Higher 1349This variable controls the verbosity level of the perl extension. Higher
670numbers indicate more verbose output. 1350numbers indicate more verbose output.
671 1351
672=over 4 1352=over 4
673 1353
674=item 0 - only fatal messages 1354=item == 0 - fatal messages
675 1355
676=item 3 - script loading and management 1356=item >= 3 - script loading and management
677 1357
678=item 10 - all events received 1358=item >=10 - all events received
679 1359
680=back 1360=back
681 1361
682=head1 AUTHOR 1362=head1 AUTHOR
683 1363

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