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Revision 1.15 by root, Tue Jan 3 01:39:17 2006 UTC vs.
Revision 1.58 by root, Sun Jan 8 22:58:13 2006 UTC

1=encoding utf8
2
1=head1 NAME 3=head1 NAME
2 4
3@@RXVT_NAME@@perl - rxvt-unicode's embedded perl interpreter 5@@RXVT_NAME@@perl - rxvt-unicode's embedded perl interpreter
4 6
5=head1 SYNOPSIS 7=head1 SYNOPSIS
15 17
16 @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test 18 @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
17 19
18=head1 DESCRIPTION 20=head1 DESCRIPTION
19 21
20Everytime a terminal object gets created, scripts specified via the 22Everytime a terminal object gets created, extension scripts specified via
21C<perl> resource are loaded and associated with it. 23the C<perl> resource are loaded and associated with it.
22 24
23Scripts are compiled in a 'use strict' and 'use utf8' environment, and 25Scripts are compiled in a 'use strict' and 'use utf8' environment, and
24thus must be encoded as UTF-8. 26thus must be encoded as UTF-8.
25 27
26Each 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
27scripts will be shared (But not enabled) for all terminals. 29scripts will be shared (but not enabled) for all terminals.
28 30
29=head1 PACKAGED EXTENSIONS 31=head2 Prepackaged Extensions
30 32
31This section describes the extensiosn delivered with this version. You can 33This section describes the extensiosn delivered with this version. You can
32find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. 34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
33 35
34You can activate them like this: 36You can activate them like this:
35 37
36 @@RXVT_NAME@@ -pe <extensionname> 38 @@RXVT_NAME@@ -pe <extensionname>
37 39
38=over 4 40=over 4
39 41
40=item selection 42=item selection (enabled by default)
41 43
42Miscellaneous 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:
43 50
44=over 4 51=over 4
45 52
46=item rot13 53=item rot13
47 54
49 56
50 URxvt.keysym.C-M-r: perl:selection:rot13 57 URxvt.keysym.C-M-r: perl:selection:rot13
51 58
52=back 59=back
53 60
61=item option-popup (enabled by default)
62
63Binds a popup menu to Ctrl-Button3 that lets you toggle (some) options at
64runtime.
65
54=item digital-clock 66=item digital-clock
67
68Displays a digital clock using the built-in overlay.
69
70=item mark-urls
71
72Uses per-line display filtering (C<on_line_update>) to underline urls.
73
74=item block-graphics-to-ascii
75
76A not very useful example of filtering all text output to the terminal,
77by replacing all line-drawing characters (U+2500 .. U+259F) by a
78similar-looking ascii character.
79
80=item example-refresh-hooks
55 81
56Displays a very simple digital clock in the upper right corner of the 82Displays a very simple digital clock in the upper right corner of the
57window. Illustrates overwriting the refresh callbacks to create your own 83window. Illustrates overwriting the refresh callbacks to create your own
58overlays or changes. 84overlays or changes.
59 85
60=item simple-overlay-clock
61
62Displays a digital clock using the built-in overlay (colorful, useless).
63
64=back 86=back
65 87
66=head2 General API Considerations 88=head2 General API Considerations
67 89
68All objects (such as terminals, time watchers etc.) are typical 90All objects (such as terminals, time watchers etc.) are typical
69reference-to-hash objects. The hash can be used to store anything you 91reference-to-hash objects. The hash can be used to store anything you
70like. All members starting with an underscore (such as C<_ptr> or 92like. All members starting with an underscore (such as C<_ptr> or
71C<_hook>) are reserved for internal uses and must not be accessed or 93C<_hook>) are reserved for internal uses and B<MUST NOT> be accessed or
72modified). 94modified).
73 95
74When objects are destroyed on the C++ side, the perl object hashes are 96When objects are destroyed on the C++ side, the perl object hashes are
75emptied, so its best to store related objects such as time watchers and 97emptied, so its best to store related objects such as time watchers and
76the like inside the terminal object so they get destroyed as soon as the 98the like inside the terminal object so they get destroyed as soon as the
77terminal is destroyed. 99terminal is destroyed.
78 100
101Argument names also often indicate the type of a parameter. Here are some
102hints on what they mean:
103
104=over 4
105
106=item $text
107
108Rxvt-unicodes special way of encoding text, where one "unicode" character
109always represents one screen cell. See L<row_t> for a discussion of this format.
110
111=item $string
112
113A perl text string, with an emphasis on I<text>. It can store all unicode
114characters and is to be distinguished with text encoded in a specific
115encoding (often locale-specific) and binary data.
116
117=item $octets
118
119Either binary data or - more common - a text string encoded in a
120locale-specific way.
121
122=back
123
79=head2 Hooks 124=head2 Hooks
80 125
81The following subroutines can be declared in loaded scripts, and will be called 126The following subroutines can be declared in extension files, and will be
82whenever the relevant event happens. 127called whenever the relevant event happens.
128
129The first argument passed to them is an object private to each terminal
130and extension package. You can call all C<urxvt::term> methods on it, but
131its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
132object that is shared between all packages is stored in the C<term>
133member. It is, however, blessed intot he package of the extension script,
134so for all practical purposes you can treat an extension script as a class.
83 135
84All of them must return a boolean value. If it is true, then the event 136All of them must return a boolean value. If it is true, then the event
85counts as being I<consumed>, and the invocation of other hooks is skipped, 137counts as being I<consumed>, and the invocation of other hooks is skipped,
86and the relevant action might not be carried out by the C++ code. 138and the relevant action might not be carried out by the C++ code.
87 139
90=over 4 142=over 4
91 143
92=item on_init $term 144=item on_init $term
93 145
94Called after a new terminal object has been initialized, but before 146Called after a new terminal object has been initialized, but before
95windows are created or the command gets run. 147windows are created or the command gets run. Most methods are unsafe to
148call or deliver senseless data, as terminal size and other characteristics
149have not yet been determined. You can safely query and change resources,
150though.
96 151
97=item on_reset $term 152=item on_reset $term
98 153
99Called after the screen is "reset" for any reason, such as resizing or 154Called after the screen is "reset" for any reason, such as resizing or
100control sequences. Here is where you can react on changes to size-related 155control sequences. Here is where you can react on changes to size-related
120requested from the server. The selection text can be queried and changed 175requested from the server. The selection text can be queried and changed
121by calling C<< $term->selection >>. 176by calling C<< $term->selection >>.
122 177
123Returning a true value aborts selection grabbing. It will still be hilighted. 178Returning a true value aborts selection grabbing. It will still be hilighted.
124 179
125=item on_focus_in $term 180=item on_sel_extend $term
126 181
127Called whenever the window gets the keyboard focus, before urxvt does 182Called whenever the user tries to extend the selection (e.g. with a double
128focus in processing. 183click) and is either supposed to return false (normal operation), or
129 184should extend the selection itelf and return true to suppress the built-in
130=item on_focus_out $term
131
132Called wheneever the window loses keyboard focus, before urxvt does focus
133out processing. 185processing.
186
187See the F<selection> example extension.
134 188
135=item on_view_change $term, $offset 189=item on_view_change $term, $offset
136 190
137Called whenever the view offset changes, i..e the user or program 191Called whenever the view offset changes, i..e the user or program
138scrolls. Offset C<0> means display the normal terminal, positive values 192scrolls. Offset C<0> means display the normal terminal, positive values
149number of lines that will be in the scrollback buffer. 203number of lines that will be in the scrollback buffer.
150 204
151=item on_tty_activity $term *NYI* 205=item on_tty_activity $term *NYI*
152 206
153Called whenever the program(s) running in the urxvt window send output. 207Called whenever the program(s) running in the urxvt window send output.
208
209=item on_osc_seq $term, $string
210
211Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
212operating system command) is processed. Cursor position and other state
213information is up-to-date when this happens. For interoperability, the
214string should start with the extension name and a colon, to distinguish
215it from commands for other extensions, and this might be enforced in the
216future.
217
218Be careful not ever to trust (in a security sense) the data you receive,
219as its source can not easily be controleld (e-mail content, messages from
220other users on the same system etc.).
221
222=item on_add_lines $term, $string
223
224Called whenever text is about to be output, with the text as argument. You
225can filter/change and output the text yourself by returning a true value
226and calling C<< $term->scr_add_lines >> yourself. Please note that this
227might be very slow, however, as your hook is called for B<all> text being
228output.
229
230=item on_line_update $term, $row
231
232Called whenever a line was updated or changed. Can be used to filter
233screen output (e.g. underline urls or other useless stuff). Only lines
234that are being shown will be filtered, and, due to performance reasons,
235not always immediately.
236
237The row number is always the topmost row of the line if the line spans
238multiple rows.
239
240Please note that, if you change the line, then the hook might get called
241later with the already-modified line (e.g. if unrelated parts change), so
242you cannot just toggle rendition bits, but only set them.
154 243
155=item on_refresh_begin $term 244=item on_refresh_begin $term
156 245
157Called just before the screen gets redrawn. Can be used for overlay 246Called just before the screen gets redrawn. Can be used for overlay
158or similar effects by modify terminal contents in refresh_begin, and 247or similar effects by modify terminal contents in refresh_begin, and
167 256
168Called whenever the user presses a key combination that has a 257Called whenever the user presses a key combination that has a
169C<perl:string> action bound to it (see description of the B<keysym> 258C<perl:string> action bound to it (see description of the B<keysym>
170resource in the @@RXVT_NAME@@(1) manpage). 259resource in the @@RXVT_NAME@@(1) manpage).
171 260
261=item on_focus_in $term
262
263Called whenever the window gets the keyboard focus, before rxvt-unicode
264does focus in processing.
265
266=item on_focus_out $term
267
268Called wheneever the window loses keyboard focus, before rxvt-unicode does
269focus out processing.
270
271=item on_key_press $term, $event, $octets
272
273=item on_key_release $term, $event
274
275=item on_button_press $term, $event
276
277=item on_button_release $term, $event
278
279=item on_motion_notify $term, $event
280
281=item on_map_notify $term, $event
282
283=item on_unmap_notify $term, $event
284
285Called whenever the corresponding X event is received for the terminal If
286the hook returns true, then the even will be ignored by rxvt-unicode.
287
288The event is a hash with most values as named by Xlib (see the XEvent
289manpage), with the additional members C<row> and C<col>, which are the row
290and column under the mouse cursor.
291
292C<on_key_press> additionally receives the string rxvt-unicode would
293output, if any, in locale-specific encoding.
294
295subwindow.
296
172=back 297=back
173 298
299=head2 Variables in the C<urxvt> Package
300
301=over 4
302
303=item $urxvt::TERM
304
305The current terminal. This variable stores the current C<urxvt::term>
306object, whenever a callback/hook is executing.
307
308=back
309
174=head2 Functions in the C<urxvt> Package 310=head2 Functions in the C<urxvt> Package
175 311
176=over 4 312=over 4
313
314=item $term = new urxvt [arg...]
315
316Creates a new terminal, very similar as if you had started it with
317C<system $binfile, arg...>. Croaks (and probably outputs an error message)
318if the new instance couldn't be created. Returns C<undef> if the new
319instance didn't initialise perl, and the terminal object otherwise. The
320C<init> and C<start> hooks will be called during the call.
177 321
178=item urxvt::fatal $errormessage 322=item urxvt::fatal $errormessage
179 323
180Fatally aborts execution with the given error message. Avoid at all 324Fatally aborts execution with the given error message. Avoid at all
181costs! The only time this is acceptable is when the terminal process 325costs! The only time this is acceptable is when the terminal process
192 336
193=item $time = urxvt::NOW 337=item $time = urxvt::NOW
194 338
195Returns the "current time" (as per the event loop). 339Returns the "current time" (as per the event loop).
196 340
341=item urxvt::CurrentTime
342
343=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
344Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
345Button4Mask, Button5Mask, AnyModifier
346
347Various constants for use in X calls and event processing.
348
349=back
350
351=head2 RENDITION
352
353Rendition bitsets contain information about colour, font, font styles and
354similar information for each screen cell.
355
356The following "macros" deal with changes in rendition sets. You should
357never just create a bitset, you should always modify an existing one,
358as they contain important information required for correct operation of
359rxvt-unicode.
360
361=over 4
362
363=item $rend = urxvt::DEFAULT_RSTYLE
364
365Returns the default rendition, as used when the terminal is starting up or
366being reset. Useful as a base to start when creating renditions.
367
368=item $rend = urxvt::OVERLAY_RSTYLE
369
370Return the rendition mask used for overlays by default.
371
372=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
373
374Return the bit that enabled bold, italic, blink, reverse-video and
375underline, respectively. To enable such a style, just logically OR it into
376the bitset.
377
378=item $foreground = urxvt::GET_BASEFG $rend
379
380=item $background = urxvt::GET_BASEBG $rend
381
382Return the foreground/background colour index, respectively.
383
384=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)
385
386=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)
387
388Replace the foreground/background colour in the rendition mask with the
389specified one.
390
391=item $value = urxvt::GET_CUSTOM ($rend)
392
393Return the "custom" value: Every rendition has 5 bits for use by
394extensions. They can be set and changed as you like and are initially
395zero.
396
397=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)
398
399Change the custom value.
400
401=back
402
197=cut 403=cut
198 404
199package urxvt; 405package urxvt;
200 406
407use utf8;
201use strict; 408use strict;
409use Scalar::Util ();
410use List::Util ();
202 411
203our $term; 412our $VERSION = 1;
413our $TERM;
204our @HOOKNAME; 414our @HOOKNAME;
415our %OPTION;
205our $LIBDIR; 416our $LIBDIR;
206 417
207BEGIN { 418BEGIN {
208 urxvt->bootstrap; 419 urxvt->bootstrap;
209 420
233 my $name = $HOOKNAME[$htype]; 444 my $name = $HOOKNAME[$htype];
234 445
235 my $ref = $pkg->can ("on_" . lc $name) 446 my $ref = $pkg->can ("on_" . lc $name)
236 or next; 447 or next;
237 448
238 $term->{_hook}[$htype]{$ref*1} = $ref; 449 $TERM->{_hook}[$htype]{$pkg} = $ref;
239 $hook_count[$htype]++ 450 $hook_count[$htype]++
240 or set_should_invoke $htype, 1; 451 or set_should_invoke $htype, 1;
241 } 452 }
242} 453}
243 454
244my $script_pkg = "script0000"; 455my $extension_pkg = "extension0000";
245my %script_pkg; 456my %extension_pkg;
246 457
247# load a single script into its own package, once only 458# load a single script into its own package, once only
248sub script_package($) { 459sub extension_package($) {
249 my ($path) = @_; 460 my ($path) = @_;
250 461
251 $script_pkg{$path} ||= do { 462 $extension_pkg{$path} ||= do {
252 my $pkg = "urxvt::" . ($script_pkg++); 463 my $pkg = "urxvt::" . ($extension_pkg++);
253 464
254 verbose 3, "loading script '$path' into package '$pkg'"; 465 verbose 3, "loading extension '$path' into package '$pkg'";
255 466
256 open my $fh, "<:raw", $path 467 open my $fh, "<:raw", $path
257 or die "$path: $!"; 468 or die "$path: $!";
258 469
259 my $source = "package $pkg; use strict; use utf8;\n" 470 my $source = "package $pkg; use strict; use utf8;\n"
471 . "use base urxvt::term::proxy::;\n"
260 . "#line 1 \"$path\"\n{\n" 472 . "#line 1 \"$path\"\n{\n"
261 . (do { local $/; <$fh> }) 473 . (do { local $/; <$fh> })
262 . "\n};\n1"; 474 . "\n};\n1";
263 475
476 $source =~ /(.*)/s and $source = $1; # untaint
477
264 eval $source or die "$path: $@"; 478 eval $source or die "$path: $@";
265 479
266 $pkg 480 $pkg
267 } 481 }
268} 482}
269 483
484our $retval; # return value for urxvt
485
270# called by the rxvt core 486# called by the rxvt core
271sub invoke { 487sub invoke {
272 local $term = shift; 488 local $TERM = shift;
273 my $htype = shift; 489 my $htype = shift;
274 490
275 if ($htype == 0) { # INIT 491 if ($htype == 0) { # INIT
276 my @dirs = ((split /:/, $term->resource ("perl_lib")), "$LIBDIR/perl"); 492 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
493
494 my %want_ext;
277 495
278 for my $ext (split /:/, $term->resource ("perl_ext")) { 496 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
497 if ($_ eq "default") {
498 $want_ext{$_}++ for qw(selection option-popup);
499 } elsif (/^-(.*)$/) {
500 delete $want_ext{$1};
501 } else {
502 $want_ext{$_}++;
503 }
504 }
505
506 for my $ext (keys %want_ext) {
279 my @files = grep -f $_, map "$_/$ext", @dirs; 507 my @files = grep -f $_, map "$_/$ext", @dirs;
280 508
281 if (@files) { 509 if (@files) {
282 register_package script_package $files[0]; 510 register_package extension_package $files[0];
283 } else { 511 } else {
284 warn "perl extension '$ext' not found in perl library search path\n"; 512 warn "perl extension '$ext' not found in perl library search path\n";
285 } 513 }
286 } 514 }
287 515
516 eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
517 warn $@ if $@;
518 }
519
520 $retval = undef;
521
522 if (my $cb = $TERM->{_hook}[$htype]) {
523 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
524 if $verbosity >= 10;
525
526 keys %$cb;
527
528 while (my ($pkg, $cb) = each %$cb) {
529 eval {
530 $retval = $cb->(
531 $TERM->{_pkg}{$pkg} ||= do {
532 my $proxy = bless { }, $pkg;
533 Scalar::Util::weaken ($proxy->{term} = $TERM);
534 $proxy
535 },
536 @_,
537 ) and last;
538 };
539 if ($@) {
540 $TERM->ungrab; # better to lose the grab than the session
541 warn $@;
542 }
543 }
544 }
545
288 } elsif ($htype == 1) { # DESTROY 546 if ($htype == 1) { # DESTROY
547 # remove hooks if unused
289 if (my $hook = $term->{_hook}) { 548 if (my $hook = $TERM->{_hook}) {
290 for my $htype (0..$#$hook) { 549 for my $htype (0..$#$hook) {
291 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 550 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
292 or set_should_invoke $htype, 0; 551 or set_should_invoke $htype, 0;
293 } 552 }
294 } 553 }
554
555 # clear package objects
556 %$_ = () for values %{ $TERM->{_pkg} };
557
558 # clear package
559 %$TERM = ();
295 } 560 }
296 561
297 my $cb = $term->{_hook}[$htype] 562 $retval
298 or return; 563}
299 564
300 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")" 565# urxvt::term::proxy
301 if $verbosity >= 10;
302 566
303 while (my ($k, $v) = each %$cb) { 567sub urxvt::term::proxy::AUTOLOAD {
304 return 1 if $v->($term, @_); 568 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/
569 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";
570
571 eval qq{
572 sub $urxvt::term::proxy::AUTOLOAD {
573 my \$proxy = shift;
574 \$proxy->{term}->$1 (\@_)
575 }
576 1
577 } or die "FATAL: unable to compile method forwarder: $@";
578
579 goto &$urxvt::term::proxy::AUTOLOAD;
580}
581
582sub urxvt::term::proxy::DESTROY {
583 # nop
584}
585
586# urxvt::destroy_hook
587
588sub urxvt::destroy_hook::DESTROY {
589 ${$_[0]}->();
590}
591
592sub urxvt::destroy_hook(&) {
593 bless \shift, urxvt::destroy_hook::
594}
595
596package urxvt::anyevent;
597
598=head2 The C<urxvt::anyevent> Class
599
600The sole purpose of this class is to deliver an interface to the
601C<AnyEvent> module - any module using it will work inside urxvt without
602further work. The only exception is that you cannot wait on condition
603variables, but non-blocking condvar use is ok. What this means is that you
604cannot use blocking APIs, but the non-blocking variant should work.
605
606=cut
607
608our $VERSION = 1;
609
610$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
611push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
612
613sub timer {
614 my ($class, %arg) = @_;
615
616 my $cb = $arg{cb};
617
618 urxvt::timer
619 ->new
620 ->start (urxvt::NOW + $arg{after})
621 ->cb (sub {
622 $_[0]->stop; # need to cancel manually
623 $cb->();
624 })
625}
626
627sub io {
628 my ($class, %arg) = @_;
629
630 my $cb = $arg{cb};
631
632 bless [$arg{fh}, urxvt::iow
633 ->new
634 ->fd (fileno $arg{fh})
635 ->events (($arg{poll} =~ /r/ ? 1 : 0)
636 | ($arg{poll} =~ /w/ ? 2 : 0))
637 ->start
638 ->cb (sub {
639 $cb->(($_[1] & 1 ? 'r' : '')
640 . ($_[1] & 2 ? 'w' : ''));
641 })],
642 urxvt::anyevent::
643}
644
645sub DESTROY {
646 $_[0][1]->stop;
647}
648
649sub condvar {
650 bless \my $flag, urxvt::anyevent::condvar::
651}
652
653sub urxvt::anyevent::condvar::broadcast {
654 ${$_[0]}++;
655}
656
657sub urxvt::anyevent::condvar::wait {
658 unless (${$_[0]}) {
659 require Carp;
660 Carp::croak ("AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API");
305 } 661 }
306
307 0
308} 662}
309 663
310=back 664package urxvt::term;
311 665
312=head2 The C<urxvt::term> Class 666=head2 The C<urxvt::term> Class
313 667
314=over 4 668=over 4
669
670=item $term->destroy
671
672Destroy the terminal object (close the window, free resources etc.).
673
674=item $isset = $term->option ($optval[, $set])
675
676Returns true if the option specified by C<$optval> is enabled, and
677optionally change it. All option values are stored by name in the hash
678C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
679
680Here is a a likely non-exhaustive list of option names, please see the
681source file F</src/optinc.h> to see the actual list:
682
683 borderLess console cursorBlink cursorUnderline hold iconic insecure
684 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
685 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating
686 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer
687 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent
688 tripleclickwords utmpInhibit visualBell
315 689
316=item $value = $term->resource ($name[, $newval]) 690=item $value = $term->resource ($name[, $newval])
317 691
318Returns the current resource value associated with a given name and 692Returns the current resource value associated with a given name and
319optionally sets a new value. Setting values is most useful in the C<init> 693optionally sets a new value. Setting values is most useful in the C<init>
329 703
330Please note that resource strings will currently only be freed when the 704Please note that resource strings will currently only be freed when the
331terminal is destroyed, so changing options frequently will eat memory. 705terminal is destroyed, so changing options frequently will eat memory.
332 706
333Here is a a likely non-exhaustive list of resource names, not all of which 707Here is a a likely non-exhaustive list of resource names, not all of which
334are supported in every build, please see the source to see the actual 708are supported in every build, please see the source file F</src/rsinc.h>
335list: 709to see the actual list:
336 710
337 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 711 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
338 borderLess color cursorBlink cursorUnderline cutchars delete_key 712 borderLess color cursorBlink cursorUnderline cutchars delete_key
339 display_name embed ext_bwidth fade font geometry hold iconName 713 display_name embed ext_bwidth fade font geometry hold iconName
340 imFont imLocale inputMethod insecure int_bwidth intensityStyles 714 imFont imLocale inputMethod insecure int_bwidth intensityStyles
341 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 715 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
342 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext 716 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
343 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 717 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
344 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 718 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
345 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 719 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
346 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 720 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
347 shade term_name title transparent transparent_all tripleclickwords 721 shade term_name title transparent transparent_all tripleclickwords
348 utmpInhibit visualBell 722 utmpInhibit visualBell
349 723
350=cut 724=cut
351 725
352sub urxvt::term::resource($$;$) { 726sub resource($$;$) {
353 my ($self, $name) = (shift, shift); 727 my ($self, $name) = (shift, shift);
354 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 728 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
355 goto &urxvt::term::_resource; 729 &urxvt::term::_resource
356} 730}
731
732=item $rend = $term->rstyle ([$new_rstyle])
733
734Return and optionally change the current rendition. Text that is output by
735the terminal application will use this style.
736
737=item ($row, $col) = $term->screen_cur ([$row, $col])
738
739Return the current coordinates of the text cursor position and optionally
740set it (which is usually bad as applications don't expect that).
357 741
358=item ($row, $col) = $term->selection_mark ([$row, $col]) 742=item ($row, $col) = $term->selection_mark ([$row, $col])
359 743
360=item ($row, $col) = $term->selection_beg ([$row, $col]) 744=item ($row, $col) = $term->selection_beg ([$row, $col])
361 745
371 755
372=item $oldtext = $term->selection ([$newtext]) 756=item $oldtext = $term->selection ([$newtext])
373 757
374Return the current selection text and optionally replace it by C<$newtext>. 758Return the current selection text and optionally replace it by C<$newtext>.
375 759
376=item $term->scr_overlay ($x, $y, $text) 760#=item $term->overlay ($x, $y, $text)
377 761#
378Create a simple multi-line overlay box. See the next method for details. 762#Create a simple multi-line overlay box. See the next method for details.
763#
764#=cut
765#
766#sub urxvt::term::scr_overlay {
767# my ($self, $x, $y, $text) = @_;
768#
769# my @lines = split /\n/, $text;
770#
771# my $w = 0;
772# for (map $self->strwidth ($_), @lines) {
773# $w = $_ if $w < $_;
774# }
775#
776# $self->scr_overlay_new ($x, $y, $w, scalar @lines);
777# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
778#}
779
780=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
781
782Create a new (empty) overlay at the given position with the given
783width/height. C<$rstyle> defines the initial rendition style
784(default: C<OVERLAY_RSTYLE>).
785
786If C<$border> is C<2> (default), then a decorative border will be put
787around the box.
788
789If either C<$x> or C<$y> is negative, then this is counted from the
790right/bottom side, respectively.
791
792This method returns an urxvt::overlay object. The overlay will be visible
793as long as the perl object is referenced.
794
795The methods currently supported on C<urxvt::overlay> objects are:
796
797=over 4
798
799=item $overlay->set ($x, $y, $text, $rend)
800
801Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
802text in rxvt-unicode's special encoding and an array of rendition values
803at a specific position inside the overlay.
804
805=item $overlay->hide
806
807If visible, hide the overlay, but do not destroy it.
808
809=item $overlay->show
810
811If hidden, display the overlay again.
812
813=back
814
815=item $popup = $term->popup ($event)
816
817Creates a new C<urxvt::popup> object that implements a popup menu. The
818C<$event> I<must> be the event causing the menu to pop up (a button event,
819currently).
379 820
380=cut 821=cut
381 822
382sub urxvt::term::scr_overlay { 823sub popup {
383 my ($self, $x, $y, $text) = @_; 824 my ($self, $event) = @_;
384 825
385 my @lines = split /\n/, $text; 826 $self->grab ($event->{time}, 1)
827 or return;
386 828
387 my $w = 0; 829 my $popup = bless {
388 for (map $self->strwidth ($_), @lines) { 830 term => $self,
389 $w = $_ if $w < $_; 831 event => $event,
390 } 832 }, urxvt::popup::;
391 833
392 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 834 Scalar::Util::weaken $popup->{term};
393 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
394}
395 835
396=item $term->scr_overlay_new ($x, $y, $width, $height) 836 $self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
837 Scalar::Util::weaken $self->{_destroy}{$popup};
397 838
398Create a new (empty) overlay at the given position with the given 839 $popup
399width/height. A border will be put around the box. If either C<$x> or 840}
400C<$y> is negative, then this is counted from the right/bottom side,
401respectively.
402 841
403=item $term->scr_overlay_off
404
405Switch the overlay off again.
406
407=item $term->scr_overlay_set_char ($x, $y, $char, $rend = OVERLAY_RSTYLE)
408
409Put a single character (specified numerically) at the given overlay
410position.
411
412=item $term->scr_overlay_set ($x, $y, $text)
413
414Write a string at the given position into the overlay.
415
416=item $cellwidth = $term->strwidth $string 842=item $cellwidth = $term->strwidth ($string)
417 843
418Returns the number of screen-cells this string would need. Correctly 844Returns the number of screen-cells this string would need. Correctly
419accounts for wide and combining characters. 845accounts for wide and combining characters.
420 846
421=item $octets = $term->locale_encode $string 847=item $octets = $term->locale_encode ($string)
422 848
423Convert the given text string into the corresponding locale encoding. 849Convert the given text string into the corresponding locale encoding.
424 850
425=item $string = $term->locale_decode $octets 851=item $string = $term->locale_decode ($octets)
426 852
427Convert the given locale-encoded octets into a perl string. 853Convert the given locale-encoded octets into a perl string.
854
855=item $term->scr_add_lines ($string)
856
857Write the given text string to the screen, as if output by the application
858running inside the terminal. It may not contain command sequences (escape
859codes), but is free to use line feeds, carriage returns and tabs. The
860string is a normal text string, not in locale-dependent encoding.
861
862Normally its not a good idea to use this function, as programs might be
863confused by changes in cursor position or scrolling. Its useful inside a
864C<on_add_lines> hook, though.
865
866=item $term->cmd_parse ($octets)
867
868Similar to C<scr_add_lines>, but the argument must be in the
869locale-specific encoding of the terminal and can contain command sequences
870(escape codes) that will be interpreted.
428 871
429=item $term->tt_write ($octets) 872=item $term->tt_write ($octets)
430 873
431Write the octets given in C<$data> to the tty (i.e. as program input). To 874Write the octets given in C<$data> to the tty (i.e. as program input). To
432pass characters instead of octets, you should convert your strings first 875pass characters instead of octets, you should convert your strings first
433to the locale-specific encoding using C<< $term->locale_encode >>. 876to the locale-specific encoding using C<< $term->locale_encode >>.
434 877
878=item $windowid = $term->parent
879
880Return the window id of the toplevel window.
881
882=item $windowid = $term->vt
883
884Return the window id of the terminal window.
885
886=item $window_width = $term->width
887
888=item $window_height = $term->height
889
890=item $font_width = $term->fwidth
891
892=item $font_height = $term->fheight
893
894=item $font_ascent = $term->fbase
895
435=item $nrow = $term->nrow 896=item $terminal_rows = $term->nrow
436 897
437=item $ncol = $term->ncol 898=item $terminal_columns = $term->ncol
438 899
439Return the number of rows/columns of the terminal window (i.e. as 900=item $has_focus = $term->focus
440specified by C<-geometry>, excluding any scrollback).
441 901
442=item $nsaved = $term->nsaved 902=item $is_mapped = $term->mapped
443 903
444Returns the number of lines in the scrollback buffer. 904=item $max_scrollback = $term->saveLines
905
906=item $nrow_plus_saveLines = $term->total_rows
907
908=item $lines_in_scrollback = $term->nsaved
909
910Return various integers describing terminal characteristics.
911
912=item $modifiermask = $term->ModLevel3Mask
913
914=item $modifiermask = $term->ModMetaMask
915
916=item $modifiermask = $term->ModNumLockMask
917
918Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
919AltGr), the meta key (often Alt) and the num lock key, if applicable.
445 920
446=item $view_start = $term->view_start ([$newvalue]) 921=item $view_start = $term->view_start ([$newvalue])
447 922
448Returns the negative row number of the topmost line. Minimum value is 923Returns the negative row number of the topmost line. Minimum value is
449C<0>, which displays the normal terminal contents. Larger values scroll 924C<0>, which displays the normal terminal contents. Larger values scroll
460=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) 935=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
461 936
462Returns the text of the entire row with number C<$row_number>. Row C<0> 937Returns the text of the entire row with number C<$row_number>. Row C<0>
463is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost 938is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost
464terminal line. The scrollback buffer starts at line C<-1> and extends to 939terminal line. The scrollback buffer starts at line C<-1> and extends to
465line C<< -$term->nsaved >>. 940line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line
941is requested.
466 942
467If C<$new_text> is specified, it will replace characters in the current 943If C<$new_text> is specified, it will replace characters in the current
468line, starting at column C<$start_col> (default C<0>), which is useful 944line, starting at column C<$start_col> (default C<0>), which is useful
469to replace only parts of a line. The font iindex in the rendition will 945to replace only parts of a line. The font index in the rendition will
470automatically be updated. 946automatically be updated.
471 947
472C<$text> is in a special encoding: tabs and wide characters that use more 948C<$text> is in a special encoding: tabs and wide characters that use more
473than one cell when displayed are padded with urxvt::NOCHAR characters 949than one cell when displayed are padded with urxvt::NOCHAR characters
474(C<chr 65535>). Characters with combining characters and other characters 950(C<chr 65535>). Characters with combining characters and other characters
488bitsets. Rendition bitsets contain information about colour, font, font 964bitsets. Rendition bitsets contain information about colour, font, font
489styles and similar information. See also C<< $term->ROW_t >>. 965styles and similar information. See also C<< $term->ROW_t >>.
490 966
491When setting rendition, the font mask will be ignored. 967When setting rendition, the font mask will be ignored.
492 968
493See the section on RENDITION, below. 969See the section on RENDITION, above.
494 970
495=item $length = $term->ROW_l ($row_number[, $new_length]) 971=item $length = $term->ROW_l ($row_number[, $new_length])
496 972
497Returns the number of screen cells that are in use ("the line length"). If 973Returns the number of screen cells that are in use ("the line
498it is C<-1>, then the line is part of a multiple-row logical "line", which 974length"). Unlike the urxvt core, this returns C<< $term->ncol >> if the
499means all characters are in use and it is continued on the next row. 975line is joined with the following one.
500 976
977=item $bool = $term->is_longer ($row_number)
978
979Returns true if the row is part of a multiple-row logical "line" (i.e.
980joined with the following row), which means all characters are in use
981and it is continued on the next row (and possibly a continuation of the
982previous row(s)).
983
984=item $line = $term->line ($row_number)
985
986Create and return a new C<urxvt::line> object that stores information
987about the logical line that row C<$row_number> is part of. It supports the
988following methods:
989
990=over 4
991
992=item $text = $line->t ([$new_text])
993
994Returns or replaces the full text of the line, similar to C<ROW_t>
995
996=item $rend = $line->r ([$new_rend])
997
998Returns or replaces the full rendition array of the line, similar to C<ROW_r>
999
1000=item $length = $line->l
1001
1002Returns the length of the line in cells, similar to C<ROW_l>.
1003
1004=item $rownum = $line->beg
1005
1006=item $rownum = $line->end
1007
1008Return the row number of the first/last row of the line, respectively.
1009
1010=item $offset = $line->offset_of ($row, $col)
1011
1012Returns the character offset of the given row|col pair within the logical
1013line.
1014
1015=item ($row, $col) = $line->coord_of ($offset)
1016
1017Translates a string offset into terminal coordinates again.
1018
1019=back
1020
1021=cut
1022
1023sub line {
1024 my ($self, $row) = @_;
1025
1026 my $maxrow = $self->nrow - 1;
1027
1028 my ($beg, $end) = ($row, $row);
1029
1030 --$beg while $self->ROW_is_longer ($beg - 1);
1031 ++$end while $self->ROW_is_longer ($end) && $end < $maxrow;
1032
1033 bless {
1034 term => $self,
1035 beg => $beg,
1036 end => $end,
1037 ncol => $self->ncol,
1038 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
1039 }, urxvt::line::
1040}
1041
1042sub urxvt::line::t {
1043 my ($self) = @_;
1044
1045 if (@_ > 1)
1046 {
1047 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
1048 for $self->{beg} .. $self->{end};
1049 }
1050
1051 defined wantarray &&
1052 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
1053 0, $self->{len}
1054}
1055
1056sub urxvt::line::r {
1057 my ($self) = @_;
1058
1059 if (@_ > 1)
1060 {
1061 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
1062 for $self->{beg} .. $self->{end};
1063 }
1064
1065 if (defined wantarray) {
1066 my $rend = [
1067 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
1068 ];
1069 $#$rend = $self->{len} - 1;
1070 return $rend;
1071 }
1072
1073 ()
1074}
1075
1076sub urxvt::line::beg { $_[0]{beg} }
1077sub urxvt::line::end { $_[0]{end} }
1078sub urxvt::line::l { $_[0]{len} }
1079
1080sub urxvt::line::offset_of {
1081 my ($self, $row, $col) = @_;
1082
1083 ($row - $self->{beg}) * $self->{ncol} + $col
1084}
1085
1086sub urxvt::line::coord_of {
1087 my ($self, $offset) = @_;
1088
1089 use integer;
1090
1091 (
1092 $offset / $self->{ncol} + $self->{beg},
1093 $offset % $self->{ncol}
1094 )
1095}
1096
1097=item ($row, $col) = $line->coord_of ($offset)
501=item $text = $term->special_encode $string 1098=item $text = $term->special_encode $string
502 1099
503Converts a perl string into the special encoding used by rxvt-unicode, 1100Converts a perl string into the special encoding used by rxvt-unicode,
504where one character corresponds to one screen cell. See 1101where one character corresponds to one screen cell. See
505C<< $term->ROW_t >> for details. 1102C<< $term->ROW_t >> for details.
509Converts rxvt-unicodes text reprsentation into a perl string. See 1106Converts rxvt-unicodes text reprsentation into a perl string. See
510C<< $term->ROW_t >> for details. 1107C<< $term->ROW_t >> for details.
511 1108
512=back 1109=back
513 1110
514=head2 RENDITION 1111=cut
515 1112
516Rendition bitsets contain information about colour, font, font styles and 1113package urxvt::popup;
517similar information for each screen cell.
518 1114
519The following "macros" deal with changes in rendition sets. You should 1115=head2 The C<urxvt::popup> Class
520never just create a bitset, you should always modify an existing one,
521as they contain important information required for correct operation of
522rxvt-unicode.
523 1116
524=over 4 1117=over 4
525 1118
526=item $rend = urxvt::DEFAULT_RSTYLE
527
528Returns the default rendition, as used when the terminal is starting up or
529being reset. Useful as a base
530
531=back
532
533=cut 1119=cut
1120
1121sub add_item {
1122 my ($self, $item) = @_;
1123
1124 $item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
1125 $item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
1126 $item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
1127
1128 $item->{render} ||= sub { $_[0]{text} };
1129
1130 push @{ $self->{item} }, $item;
1131}
1132
1133sub add_separator {
1134 my ($self, $sep) = @_;
1135
1136 $sep ||= "═";
1137
1138 $self->add_item ({
1139 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1140 text => "",
1141 render => sub { $sep x $urxvt::TERM->ncol },
1142 activate => sub { },
1143 });
1144}
1145
1146sub add_title {
1147 my ($self, $title) = @_;
1148
1149 $self->add_item ({
1150 rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
1151 text => $title,
1152 activate => sub { },
1153 });
1154}
1155
1156sub add_button {
1157 my ($self, $text, $cb) = @_;
1158
1159 $self->add_item ({ type => "button", text => "[ $text ]", activate => $cb});
1160}
1161
1162sub add_toggle {
1163 my ($self, $text, $cb, $value) = @_;
1164
1165 my $item; $item = {
1166 type => "button",
1167 text => " $text",
1168 value => $value,
1169 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1170 activate => sub { $cb->($_[0]{value} = !$_[0]{value}); },
1171 };
1172
1173 $self->add_item ($item);
1174}
1175
1176sub show {
1177 my ($self) = @_;
1178
1179 local $urxvt::popup::self = $self;
1180
1181 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,
1182 "--transient-for" => $self->{term}->parent,
1183 "-pe" => "urxvt-popup")
1184 or die "unable to create popup window\n";
1185}
1186
1187sub DESTROY {
1188 my ($self) = @_;
1189
1190 delete $self->{term}{_destroy}{$self};
1191 $self->{term}->ungrab;
1192}
534 1193
535=head2 The C<urxvt::timer> Class 1194=head2 The C<urxvt::timer> Class
536 1195
537This class implements timer watchers/events. Time is represented as a 1196This class implements timer watchers/events. Time is represented as a
538fractional number of seconds since the epoch. Example: 1197fractional number of seconds since the epoch. Example:
539 1198
540 # create a digital clock display in upper right corner 1199 $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
541 $term->{timer} = urxvt::timer 1200 $term->{timer} = urxvt::timer
542 ->new 1201 ->new
543 ->start (urxvt::NOW) 1202 ->interval (1)
544 ->cb (sub { 1203 ->cb (sub {
545 my ($timer) = @_;
546 my $time = $timer->at;
547 $timer->start ($time + 1);
548 $self->scr_overlay (-1, 0, 1204 $term->{overlay}->set (0, 0,
549 POSIX::strftime "%H:%M:%S", localtime $time); 1205 sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
550 }); 1206 });
551 1207
552=over 4 1208=over 4
553 1209
554=item $timer = new urxvt::timer 1210=item $timer = new urxvt::timer
555 1211
556Create a new timer object in stopped state. 1212Create a new timer object in started state. It is scheduled to fire
1213immediately.
557 1214
558=item $timer = $timer->cb (sub { my ($timer) = @_; ... }) 1215=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
559 1216
560Set the callback to be called when the timer triggers. 1217Set the callback to be called when the timer triggers.
561 1218
564Return the time this watcher will fire next. 1221Return the time this watcher will fire next.
565 1222
566=item $timer = $timer->set ($tstamp) 1223=item $timer = $timer->set ($tstamp)
567 1224
568Set the time the event is generated to $tstamp. 1225Set the time the event is generated to $tstamp.
1226
1227=item $timer = $timer->interval ($interval)
1228
1229Normally (and when C<$interval> is C<0>), the timer will automatically
1230stop after it has fired once. If C<$interval> is non-zero, then the timer
1231is automatically rescheduled at the given intervals.
569 1232
570=item $timer = $timer->start 1233=item $timer = $timer->start
571 1234
572Start the timer. 1235Start the timer.
573 1236
636This variable controls the verbosity level of the perl extension. Higher 1299This variable controls the verbosity level of the perl extension. Higher
637numbers indicate more verbose output. 1300numbers indicate more verbose output.
638 1301
639=over 4 1302=over 4
640 1303
641=item 0 - only fatal messages 1304=item == 0 - fatal messages
642 1305
643=item 3 - script loading and management 1306=item >= 3 - script loading and management
644 1307
645=item 10 - all events received 1308=item >=10 - all events received
646 1309
647=back 1310=back
648 1311
649=head1 AUTHOR 1312=head1 AUTHOR
650 1313

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