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Revision 1.16 by root, Tue Jan 3 01:41:06 2006 UTC vs.
Revision 1.53 by root, Sun Jan 8 01:16:09 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:
37 39
38=over 4 40=over 4
39 41
40=item selection 42=item selection
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
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
54=item digital-clock 61=item digital-clock
62
63Displays a digital clock using the built-in overlay.
64
65=item mark-urls
66
67Uses per-line display filtering (C<on_line_update>) to underline urls.
68
69=item block-graphics-to-ascii
70
71A not very useful example of filtering all text output to the terminal,
72by replacing all line-drawing characters (U+2500 .. U+259F) by a
73similar-looking ascii character.
74
75=item example-refresh-hooks
55 76
56Displays a very simple digital clock in the upper right corner of the 77Displays a very simple digital clock in the upper right corner of the
57window. Illustrates overwriting the refresh callbacks to create your own 78window. Illustrates overwriting the refresh callbacks to create your own
58overlays or changes. 79overlays or changes.
59 80
60=item simple-overlay-clock
61
62Displays a digital clock using the built-in overlay (colorful, useless).
63
64=back 81=back
65 82
66=head2 General API Considerations 83=head2 General API Considerations
67 84
68All objects (such as terminals, time watchers etc.) are typical 85All objects (such as terminals, time watchers etc.) are typical
69reference-to-hash objects. The hash can be used to store anything you 86reference-to-hash objects. The hash can be used to store anything you
70like. All members starting with an underscore (such as C<_ptr> or 87like. All members starting with an underscore (such as C<_ptr> or
71C<_hook>) are reserved for internal uses and must not be accessed or 88C<_hook>) are reserved for internal uses and B<MUST NOT> be accessed or
72modified). 89modified).
73 90
74When objects are destroyed on the C++ side, the perl object hashes are 91When 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 92emptied, 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 93the like inside the terminal object so they get destroyed as soon as the
77terminal is destroyed. 94terminal is destroyed.
78 95
96Argument names also often indicate the type of a parameter. Here are some
97hints on what they mean:
98
99=over 4
100
101=item $text
102
103Rxvt-unicodes special way of encoding text, where one "unicode" character
104always represents one screen cell. See L<row_t> for a discussion of this format.
105
106=item $string
107
108A perl text string, with an emphasis on I<text>. It can store all unicode
109characters and is to be distinguished with text encoded in a specific
110encoding (often locale-specific) and binary data.
111
112=item $octets
113
114Either binary data or - more common - a text string encoded in a
115locale-specific way.
116
117=back
118
79=head2 Hooks 119=head2 Hooks
80 120
81The following subroutines can be declared in loaded scripts, and will be called 121The following subroutines can be declared in extension files, and will be
82whenever the relevant event happens. 122called whenever the relevant event happens.
123
124The first argument passed to them is an object private to each terminal
125and extension package. You can call all C<urxvt::term> methods on it, but
126its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
127object that is shared between all packages is stored in the C<term>
128member. It is, however, blessed intot he package of the extension script,
129so for all practical purposes you can treat an extension script as a class.
83 130
84All of them must return a boolean value. If it is true, then the event 131All 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, 132counts 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. 133and the relevant action might not be carried out by the C++ code.
87 134
90=over 4 137=over 4
91 138
92=item on_init $term 139=item on_init $term
93 140
94Called after a new terminal object has been initialized, but before 141Called after a new terminal object has been initialized, but before
95windows are created or the command gets run. 142windows are created or the command gets run. Most methods are unsafe to
143call or deliver senseless data, as terminal size and other characteristics
144have not yet been determined. You can safely query and change resources,
145though.
96 146
97=item on_reset $term 147=item on_reset $term
98 148
99Called after the screen is "reset" for any reason, such as resizing or 149Called 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 150control sequences. Here is where you can react on changes to size-related
120requested from the server. The selection text can be queried and changed 170requested from the server. The selection text can be queried and changed
121by calling C<< $term->selection >>. 171by calling C<< $term->selection >>.
122 172
123Returning a true value aborts selection grabbing. It will still be hilighted. 173Returning a true value aborts selection grabbing. It will still be hilighted.
124 174
125=item on_focus_in $term 175=item on_sel_extend $term
126 176
127Called whenever the window gets the keyboard focus, before urxvt does 177Called whenever the user tries to extend the selection (e.g. with a double
128focus in processing. 178click) and is either supposed to return false (normal operation), or
129 179should 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. 180processing.
181
182See the F<selection> example extension.
134 183
135=item on_view_change $term, $offset 184=item on_view_change $term, $offset
136 185
137Called whenever the view offset changes, i..e the user or program 186Called whenever the view offset changes, i..e the user or program
138scrolls. Offset C<0> means display the normal terminal, positive values 187scrolls. Offset C<0> means display the normal terminal, positive values
149number of lines that will be in the scrollback buffer. 198number of lines that will be in the scrollback buffer.
150 199
151=item on_tty_activity $term *NYI* 200=item on_tty_activity $term *NYI*
152 201
153Called whenever the program(s) running in the urxvt window send output. 202Called whenever the program(s) running in the urxvt window send output.
203
204=item on_osc_seq $term, $string
205
206Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
207operating system command) is processed. Cursor position and other state
208information is up-to-date when this happens. For interoperability, the
209string should start with the extension name and a colon, to distinguish
210it from commands for other extensions, and this might be enforced in the
211future.
212
213Be careful not ever to trust (in a security sense) the data you receive,
214as its source can not easily be controleld (e-mail content, messages from
215other users on the same system etc.).
216
217=item on_add_lines $term, $string
218
219Called whenever text is about to be output, with the text as argument. You
220can filter/change and output the text yourself by returning a true value
221and calling C<< $term->scr_add_lines >> yourself. Please note that this
222might be very slow, however, as your hook is called for B<all> text being
223output.
224
225=item on_line_update $term, $row
226
227Called whenever a line was updated or changed. Can be used to filter
228screen output (e.g. underline urls or other useless stuff). Only lines
229that are being shown will be filtered, and, due to performance reasons,
230not always immediately.
231
232The row number is always the topmost row of the line if the line spans
233multiple rows.
234
235Please note that, if you change the line, then the hook might get called
236later with the already-modified line (e.g. if unrelated parts change), so
237you cannot just toggle rendition bits, but only set them.
154 238
155=item on_refresh_begin $term 239=item on_refresh_begin $term
156 240
157Called just before the screen gets redrawn. Can be used for overlay 241Called just before the screen gets redrawn. Can be used for overlay
158or similar effects by modify terminal contents in refresh_begin, and 242or similar effects by modify terminal contents in refresh_begin, and
167 251
168Called whenever the user presses a key combination that has a 252Called whenever the user presses a key combination that has a
169C<perl:string> action bound to it (see description of the B<keysym> 253C<perl:string> action bound to it (see description of the B<keysym>
170resource in the @@RXVT_NAME@@(1) manpage). 254resource in the @@RXVT_NAME@@(1) manpage).
171 255
256=item on_focus_in $term
257
258Called whenever the window gets the keyboard focus, before rxvt-unicode
259does focus in processing.
260
261=item on_focus_out $term
262
263Called wheneever the window loses keyboard focus, before rxvt-unicode does
264focus out processing.
265
266=item on_key_press $term, $event, $octets
267
268=item on_key_release $term, $event
269
270=item on_button_press $term, $event
271
272=item on_button_release $term, $event
273
274=item on_motion_notify $term, $event
275
276=item on_map_notify $term, $event
277
278=item on_unmap_notify $term, $event
279
280Called whenever the corresponding X event is received for the terminal If
281the hook returns true, then the even will be ignored by rxvt-unicode.
282
283The event is a hash with most values as named by Xlib (see the XEvent
284manpage), with the additional members C<row> and C<col>, which are the row
285and column under the mouse cursor.
286
287C<on_key_press> additionally receives the string rxvt-unicode would
288output, if any, in locale-specific encoding.
289
290subwindow.
291
172=back 292=back
173 293
294=head2 Variables in the C<urxvt> Package
295
296=over 4
297
298=item $urxvt::TERM
299
300The current terminal. This variable stores the current C<urxvt::term>
301object, whenever a callback/hook is executing.
302
303=back
304
174=head2 Functions in the C<urxvt> Package 305=head2 Functions in the C<urxvt> Package
175 306
176=over 4 307=over 4
308
309=item $term = new urxvt [arg...]
310
311Creates a new terminal, very similar as if you had started it with
312C<system $binfile, arg...>. Croaks (and probably outputs an error message)
313if the new instance couldn't be created. Returns C<undef> if the new
314instance didn't initialise perl, and the terminal object otherwise. The
315C<init> and C<start> hooks will be called during the call.
177 316
178=item urxvt::fatal $errormessage 317=item urxvt::fatal $errormessage
179 318
180Fatally aborts execution with the given error message. Avoid at all 319Fatally aborts execution with the given error message. Avoid at all
181costs! The only time this is acceptable is when the terminal process 320costs! The only time this is acceptable is when the terminal process
192 331
193=item $time = urxvt::NOW 332=item $time = urxvt::NOW
194 333
195Returns the "current time" (as per the event loop). 334Returns the "current time" (as per the event loop).
196 335
336=item urxvt::CurrentTime
337
338=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
339Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
340Button4Mask, Button5Mask, AnyModifier
341
342Various constants for use in X events.
343
344=back
345
346=head2 RENDITION
347
348Rendition bitsets contain information about colour, font, font styles and
349similar information for each screen cell.
350
351The following "macros" deal with changes in rendition sets. You should
352never just create a bitset, you should always modify an existing one,
353as they contain important information required for correct operation of
354rxvt-unicode.
355
356=over 4
357
358=item $rend = urxvt::DEFAULT_RSTYLE
359
360Returns the default rendition, as used when the terminal is starting up or
361being reset. Useful as a base to start when creating renditions.
362
363=item $rend = urxvt::OVERLAY_RSTYLE
364
365Return the rendition mask used for overlays by default.
366
367=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
368
369Return the bit that enabled bold, italic, blink, reverse-video and
370underline, respectively. To enable such a style, just logically OR it into
371the bitset.
372
373=item $foreground = urxvt::GET_BASEFG $rend
374
375=item $background = urxvt::GET_BASEBG $rend
376
377Return the foreground/background colour index, respectively.
378
379=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)
380
381=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)
382
383Replace the foreground/background colour in the rendition mask with the
384specified one.
385
386=item $value = urxvt::GET_CUSTOM ($rend)
387
388Return the "custom" value: Every rendition has 5 bits for use by
389extensions. They can be set and changed as you like and are initially
390zero.
391
392=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)
393
394Change the custom value.
395
396=back
397
197=cut 398=cut
198 399
199package urxvt; 400package urxvt;
200 401
402use utf8;
201use strict; 403use strict;
404use Scalar::Util ();
405use List::Util ();
202 406
203our $term; 407our $TERM;
204our @HOOKNAME; 408our @HOOKNAME;
409our %OPTION;
205our $LIBDIR; 410our $LIBDIR;
206 411
207BEGIN { 412BEGIN {
208 urxvt->bootstrap; 413 urxvt->bootstrap;
209 414
233 my $name = $HOOKNAME[$htype]; 438 my $name = $HOOKNAME[$htype];
234 439
235 my $ref = $pkg->can ("on_" . lc $name) 440 my $ref = $pkg->can ("on_" . lc $name)
236 or next; 441 or next;
237 442
238 $term->{_hook}[$htype]{$ref*1} = $ref; 443 $TERM->{_hook}[$htype]{$pkg} = $ref;
239 $hook_count[$htype]++ 444 $hook_count[$htype]++
240 or set_should_invoke $htype, 1; 445 or set_should_invoke $htype, 1;
241 } 446 }
242} 447}
243 448
244my $script_pkg = "script0000"; 449my $extension_pkg = "extension0000";
245my %script_pkg; 450my %extension_pkg;
246 451
247# load a single script into its own package, once only 452# load a single script into its own package, once only
248sub script_package($) { 453sub extension_package($) {
249 my ($path) = @_; 454 my ($path) = @_;
250 455
251 $script_pkg{$path} ||= do { 456 $extension_pkg{$path} ||= do {
252 my $pkg = "urxvt::" . ($script_pkg++); 457 my $pkg = "urxvt::" . ($extension_pkg++);
253 458
254 verbose 3, "loading script '$path' into package '$pkg'"; 459 verbose 3, "loading extension '$path' into package '$pkg'";
255 460
256 open my $fh, "<:raw", $path 461 open my $fh, "<:raw", $path
257 or die "$path: $!"; 462 or die "$path: $!";
258 463
259 my $source = "package $pkg; use strict; use utf8;\n" 464 my $source = "package $pkg; use strict; use utf8;\n"
465 . "use base urxvt::term::proxy::;\n"
260 . "#line 1 \"$path\"\n{\n" 466 . "#line 1 \"$path\"\n{\n"
261 . (do { local $/; <$fh> }) 467 . (do { local $/; <$fh> })
262 . "\n};\n1"; 468 . "\n};\n1";
263 469
264 eval $source or die "$path: $@"; 470 eval $source or die "$path: $@";
265 471
266 $pkg 472 $pkg
267 } 473 }
268} 474}
269 475
476our $retval; # return value for urxvt
477
270# called by the rxvt core 478# called by the rxvt core
271sub invoke { 479sub invoke {
272 local $term = shift; 480 local $TERM = shift;
273 my $htype = shift; 481 my $htype = shift;
274 482
275 if ($htype == 0) { # INIT 483 if ($htype == 0) { # INIT
276 my @dirs = ((split /:/, $term->resource ("perl_lib")), "$LIBDIR/perl"); 484 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
485
486 my %want_ext;
277 487
278 for my $ext (split /:/, $term->resource ("perl_ext")) { 488 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
489 if ($_ eq "default") {
490 $want_ext{$_}++ for qw(selection option-popup);
491 } elsif (/^-(.*)$/) {
492 delete $want_ext{$1};
493 } else {
494 $want_ext{$_}++;
495 }
496 }
497
498 for my $ext (keys %want_ext) {
279 my @files = grep -f $_, map "$_/$ext", @dirs; 499 my @files = grep -f $_, map "$_/$ext", @dirs;
280 500
281 if (@files) { 501 if (@files) {
282 register_package script_package $files[0]; 502 register_package extension_package $files[0];
283 } else { 503 } else {
284 warn "perl extension '$ext' not found in perl library search path\n"; 504 warn "perl extension '$ext' not found in perl library search path\n";
285 } 505 }
286 } 506 }
507 }
287 508
509 $retval = undef;
510
511 if (my $cb = $TERM->{_hook}[$htype]) {
512 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
513 if $verbosity >= 10;
514
515 keys %$cb;
516
517 while (my ($pkg, $cb) = each %$cb) {
518 eval {
519 $retval = $cb->(
520 $TERM->{_pkg}{$pkg} ||= do {
521 my $proxy = bless { }, $pkg;
522 Scalar::Util::weaken ($proxy->{term} = $TERM);
523 $proxy
524 },
525 @_,
526 ) and last;
527 };
528 warn $@ if $@;#d#
529 }
530 }
531
288 } elsif ($htype == 1) { # DESTROY 532 if ($htype == 1) { # DESTROY
533 # remove hooks if unused
289 if (my $hook = $term->{_hook}) { 534 if (my $hook = $TERM->{_hook}) {
290 for my $htype (0..$#$hook) { 535 for my $htype (0..$#$hook) {
291 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 536 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
292 or set_should_invoke $htype, 0; 537 or set_should_invoke $htype, 0;
293 } 538 }
294 } 539 }
540
541 # clear package objects
542 %$_ = () for values %{ $TERM->{_pkg} };
543
544 # clear package
545 %$TERM = ();
295 } 546 }
296 547
297 my $cb = $term->{_hook}[$htype] 548 $retval
298 or return;
299
300 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")"
301 if $verbosity >= 10;
302
303 while (my ($k, $v) = each %$cb) {
304 return 1 if $v->($term, @_);
305 }
306
307 0
308} 549}
309 550
310=back 551sub urxvt::term::proxy::AUTOLOAD {
552 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/
553 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";
554
555 eval qq{
556 sub $urxvt::term::proxy::AUTOLOAD {
557 my \$proxy = shift;
558 \$proxy->{term}->$1 (\@_)
559 }
560 1
561 } or die "FATAL: unable to compile method forwarder: $@";
562
563 goto &$urxvt::term::proxy::AUTOLOAD;
564}
565
566sub urxvt::destroy_hook::DESTROY {
567 ${$_[0]}->();
568}
569
570sub urxvt::destroy_hook(&) {
571 bless \shift, urxvt::destroy_hook::
572}
311 573
312=head2 The C<urxvt::term> Class 574=head2 The C<urxvt::term> Class
313 575
314=over 4 576=over 4
577
578=item $term->destroy
579
580Destroy the terminal object (close the window, free resources etc.).
581
582=item $isset = $term->option ($optval[, $set])
583
584Returns true if the option specified by C<$optval> is enabled, and
585optionally change it. All option values are stored by name in the hash
586C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
587
588Here is a a likely non-exhaustive list of option names, please see the
589source file F</src/optinc.h> to see the actual list:
590
591 borderLess console cursorBlink cursorUnderline hold iconic insecure
592 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
593 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating
594 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer
595 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent
596 tripleclickwords utmpInhibit visualBell
315 597
316=item $value = $term->resource ($name[, $newval]) 598=item $value = $term->resource ($name[, $newval])
317 599
318Returns the current resource value associated with a given name and 600Returns the current resource value associated with a given name and
319optionally sets a new value. Setting values is most useful in the C<init> 601optionally sets a new value. Setting values is most useful in the C<init>
329 611
330Please note that resource strings will currently only be freed when the 612Please note that resource strings will currently only be freed when the
331terminal is destroyed, so changing options frequently will eat memory. 613terminal is destroyed, so changing options frequently will eat memory.
332 614
333Here is a a likely non-exhaustive list of resource names, not all of which 615Here 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 616are supported in every build, please see the source file F</src/rsinc.h>
335list: 617to see the actual list:
336 618
337 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 619 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
338 borderLess color cursorBlink cursorUnderline cutchars delete_key 620 borderLess color cursorBlink cursorUnderline cutchars delete_key
339 display_name embed ext_bwidth fade font geometry hold iconName 621 display_name embed ext_bwidth fade font geometry hold iconName
340 imFont imLocale inputMethod insecure int_bwidth intensityStyles 622 imFont imLocale inputMethod insecure int_bwidth intensityStyles
341 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 623 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
342 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext 624 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
343 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 625 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
344 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 626 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
345 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 627 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
346 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 628 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
347 shade term_name title transparent transparent_all tripleclickwords 629 shade term_name title transparent transparent_all tripleclickwords
350=cut 632=cut
351 633
352sub urxvt::term::resource($$;$) { 634sub urxvt::term::resource($$;$) {
353 my ($self, $name) = (shift, shift); 635 my ($self, $name) = (shift, shift);
354 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 636 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
355 goto &urxvt::term::_resource; 637 &urxvt::term::_resource
356} 638}
639
640=item $rend = $term->rstyle ([$new_rstyle])
641
642Return and optionally change the current rendition. Text that is output by
643the terminal application will use this style.
644
645=item ($row, $col) = $term->screen_cur ([$row, $col])
646
647Return the current coordinates of the text cursor position and optionally
648set it (which is usually bad as applications don't expect that).
357 649
358=item ($row, $col) = $term->selection_mark ([$row, $col]) 650=item ($row, $col) = $term->selection_mark ([$row, $col])
359 651
360=item ($row, $col) = $term->selection_beg ([$row, $col]) 652=item ($row, $col) = $term->selection_beg ([$row, $col])
361 653
371 663
372=item $oldtext = $term->selection ([$newtext]) 664=item $oldtext = $term->selection ([$newtext])
373 665
374Return the current selection text and optionally replace it by C<$newtext>. 666Return the current selection text and optionally replace it by C<$newtext>.
375 667
376=item $term->scr_overlay ($x, $y, $text) 668#=item $term->overlay ($x, $y, $text)
377 669#
378Create a simple multi-line overlay box. See the next method for details. 670#Create a simple multi-line overlay box. See the next method for details.
671#
672#=cut
673#
674#sub urxvt::term::scr_overlay {
675# my ($self, $x, $y, $text) = @_;
676#
677# my @lines = split /\n/, $text;
678#
679# my $w = 0;
680# for (map $self->strwidth ($_), @lines) {
681# $w = $_ if $w < $_;
682# }
683#
684# $self->scr_overlay_new ($x, $y, $w, scalar @lines);
685# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
686#}
687
688=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
689
690Create a new (empty) overlay at the given position with the given
691width/height. C<$rstyle> defines the initial rendition style
692(default: C<OVERLAY_RSTYLE>).
693
694If C<$border> is C<2> (default), then a decorative border will be put
695around the box.
696
697If either C<$x> or C<$y> is negative, then this is counted from the
698right/bottom side, respectively.
699
700This method returns an urxvt::overlay object. The overlay will be visible
701as long as the perl object is referenced.
702
703The methods currently supported on C<urxvt::overlay> objects are:
704
705=over 4
706
707=item $overlay->set ($x, $y, $text, $rend)
708
709Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
710text in rxvt-unicode's special encoding and an array of rendition values
711at a specific position inside the overlay.
712
713=item $overlay->hide
714
715If visible, hide the overlay, but do not destroy it.
716
717=item $overlay->show
718
719If hidden, display the overlay again.
720
721=back
722
723=item $popup = $term->popup ($event)
724
725Creates a new C<urxvt::popup> object that implements a popup menu. The
726C<$event> I<must> be the event causing the menu to pop up (a button event,
727currently).
379 728
380=cut 729=cut
381 730
382sub urxvt::term::scr_overlay { 731sub urxvt::term::popup {
383 my ($self, $x, $y, $text) = @_; 732 my ($self, $event) = @_;
384 733
385 my @lines = split /\n/, $text; 734 $self->grab ($event->{time}, 1)
735 or return;
386 736
387 my $w = 0; 737 my $popup = bless {
388 for (map $self->strwidth ($_), @lines) { 738 term => $self,
389 $w = $_ if $w < $_; 739 event => $event,
390 } 740 }, urxvt::popup::;
391 741
392 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 742 Scalar::Util::weaken $popup->{term};
393 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
394}
395 743
396=item $term->scr_overlay_new ($x, $y, $width, $height) 744 $self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
745 Scalar::Util::weaken $self->{_destroy}{$popup};
397 746
398Create a new (empty) overlay at the given position with the given 747 $popup
399width/height. A border will be put around the box. If either C<$x> or 748}
400C<$y> is negative, then this is counted from the right/bottom side,
401respectively.
402 749
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 750=item $cellwidth = $term->strwidth ($string)
417 751
418Returns the number of screen-cells this string would need. Correctly 752Returns the number of screen-cells this string would need. Correctly
419accounts for wide and combining characters. 753accounts for wide and combining characters.
420 754
421=item $octets = $term->locale_encode $string 755=item $octets = $term->locale_encode ($string)
422 756
423Convert the given text string into the corresponding locale encoding. 757Convert the given text string into the corresponding locale encoding.
424 758
425=item $string = $term->locale_decode $octets 759=item $string = $term->locale_decode ($octets)
426 760
427Convert the given locale-encoded octets into a perl string. 761Convert the given locale-encoded octets into a perl string.
762
763=item $term->scr_add_lines ($string)
764
765Write the given text string to the screen, as if output by the application
766running inside the terminal. It may not contain command sequences (escape
767codes), but is free to use line feeds, carriage returns and tabs. The
768string is a normal text string, not in locale-dependent encoding.
769
770Normally its not a good idea to use this function, as programs might be
771confused by changes in cursor position or scrolling. Its useful inside a
772C<on_add_lines> hook, though.
773
774=item $term->cmd_parse ($octets)
775
776Similar to C<scr_add_lines>, but the argument must be in the
777locale-specific encoding of the terminal and can contain command sequences
778(escape codes) that will be interpreted.
428 779
429=item $term->tt_write ($octets) 780=item $term->tt_write ($octets)
430 781
431Write the octets given in C<$data> to the tty (i.e. as program input). To 782Write the octets given in C<$data> to the tty (i.e. as program input). To
432pass characters instead of octets, you should convert your strings first 783pass characters instead of octets, you should convert your strings first
433to the locale-specific encoding using C<< $term->locale_encode >>. 784to the locale-specific encoding using C<< $term->locale_encode >>.
434 785
786=item $windowid = $term->parent
787
788Return the window id of the toplevel window.
789
790=item $windowid = $term->vt
791
792Return the window id of the terminal window.
793
794=item $window_width = $term->width
795
796=item $window_height = $term->height
797
798=item $font_width = $term->fwidth
799
800=item $font_height = $term->fheight
801
802=item $font_ascent = $term->fbase
803
435=item $nrow = $term->nrow 804=item $terminal_rows = $term->nrow
436 805
437=item $ncol = $term->ncol 806=item $terminal_columns = $term->ncol
438 807
439Return the number of rows/columns of the terminal window (i.e. as 808=item $has_focus = $term->focus
440specified by C<-geometry>, excluding any scrollback).
441 809
442=item $nsaved = $term->nsaved 810=item $is_mapped = $term->mapped
443 811
444Returns the number of lines in the scrollback buffer. 812=item $max_scrollback = $term->saveLines
813
814=item $nrow_plus_saveLines = $term->total_rows
815
816=item $lines_in_scrollback = $term->nsaved
817
818Return various integers describing terminal characteristics.
819
820=item $modifiermask = $term->ModLevel3Mask
821
822=item $modifiermask = $term->ModMetaMask
823
824=item $modifiermask = $term->ModNumLockMask
825
826Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
827AltGr), the meta key (often Alt) and the num lock key, if applicable.
445 828
446=item $view_start = $term->view_start ([$newvalue]) 829=item $view_start = $term->view_start ([$newvalue])
447 830
448Returns the negative row number of the topmost line. Minimum value is 831Returns the negative row number of the topmost line. Minimum value is
449C<0>, which displays the normal terminal contents. Larger values scroll 832C<0>, which displays the normal terminal contents. Larger values scroll
460=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) 843=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
461 844
462Returns the text of the entire row with number C<$row_number>. Row C<0> 845Returns 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 846is 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 847terminal line. The scrollback buffer starts at line C<-1> and extends to
465line C<< -$term->nsaved >>. 848line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line
849is requested.
466 850
467If C<$new_text> is specified, it will replace characters in the current 851If C<$new_text> is specified, it will replace characters in the current
468line, starting at column C<$start_col> (default C<0>), which is useful 852line, starting at column C<$start_col> (default C<0>), which is useful
469to replace only parts of a line. The font iindex in the rendition will 853to replace only parts of a line. The font index in the rendition will
470automatically be updated. 854automatically be updated.
471 855
472C<$text> is in a special encoding: tabs and wide characters that use more 856C<$text> is in a special encoding: tabs and wide characters that use more
473than one cell when displayed are padded with urxvt::NOCHAR characters 857than one cell when displayed are padded with urxvt::NOCHAR characters
474(C<chr 65535>). Characters with combining characters and other characters 858(C<chr 65535>). Characters with combining characters and other characters
488bitsets. Rendition bitsets contain information about colour, font, font 872bitsets. Rendition bitsets contain information about colour, font, font
489styles and similar information. See also C<< $term->ROW_t >>. 873styles and similar information. See also C<< $term->ROW_t >>.
490 874
491When setting rendition, the font mask will be ignored. 875When setting rendition, the font mask will be ignored.
492 876
493See the section on RENDITION, below. 877See the section on RENDITION, above.
494 878
495=item $length = $term->ROW_l ($row_number[, $new_length]) 879=item $length = $term->ROW_l ($row_number[, $new_length])
496 880
497Returns the number of screen cells that are in use ("the line length"). If 881Returns 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 882length"). 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. 883line is joined with the following one.
500 884
885=item $bool = $term->is_longer ($row_number)
886
887Returns true if the row is part of a multiple-row logical "line" (i.e.
888joined with the following row), which means all characters are in use
889and it is continued on the next row (and possibly a continuation of the
890previous row(s)).
891
892=item $line = $term->line ($row_number)
893
894Create and return a new C<urxvt::line> object that stores information
895about the logical line that row C<$row_number> is part of. It supports the
896following methods:
897
898=over 4
899
900=item $text = $line->t ([$new_text])
901
902Returns or replaces the full text of the line, similar to C<ROW_t>
903
904=item $rend = $line->r ([$new_rend])
905
906Returns or replaces the full rendition array of the line, similar to C<ROW_r>
907
908=item $length = $line->l
909
910Returns the length of the line in cells, similar to C<ROW_l>.
911
912=item $rownum = $line->beg
913
914=item $rownum = $line->end
915
916Return the row number of the first/last row of the line, respectively.
917
918=item $offset = $line->offset_of ($row, $col)
919
920Returns the character offset of the given row|col pair within the logical
921line.
922
923=item ($row, $col) = $line->coord_of ($offset)
924
925Translates a string offset into terminal coordinates again.
926
927=back
928
929=cut
930
931sub urxvt::term::line {
932 my ($self, $row) = @_;
933
934 my $maxrow = $self->nrow - 1;
935
936 my ($beg, $end) = ($row, $row);
937
938 --$beg while $self->ROW_is_longer ($beg - 1);
939 ++$end while $self->ROW_is_longer ($end) && $end < $maxrow;
940
941 bless {
942 term => $self,
943 beg => $beg,
944 end => $end,
945 ncol => $self->ncol,
946 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
947 }, urxvt::line::
948}
949
950sub urxvt::line::t {
951 my ($self) = @_;
952
953 if (@_ > 1)
954 {
955 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
956 for $self->{beg} .. $self->{end};
957 }
958
959 defined wantarray &&
960 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
961 0, $self->{len}
962}
963
964sub urxvt::line::r {
965 my ($self) = @_;
966
967 if (@_ > 1)
968 {
969 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
970 for $self->{beg} .. $self->{end};
971 }
972
973 if (defined wantarray) {
974 my $rend = [
975 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
976 ];
977 $#$rend = $self->{len} - 1;
978 return $rend;
979 }
980
981 ()
982}
983
984sub urxvt::line::beg { $_[0]{beg} }
985sub urxvt::line::end { $_[0]{end} }
986sub urxvt::line::l { $_[0]{len} }
987
988sub urxvt::line::offset_of {
989 my ($self, $row, $col) = @_;
990
991 ($row - $self->{beg}) * $self->{ncol} + $col
992}
993
994sub urxvt::line::coord_of {
995 my ($self, $offset) = @_;
996
997 use integer;
998
999 (
1000 $offset / $self->{ncol} + $self->{beg},
1001 $offset % $self->{ncol}
1002 )
1003}
1004
1005=item ($row, $col) = $line->coord_of ($offset)
501=item $text = $term->special_encode $string 1006=item $text = $term->special_encode $string
502 1007
503Converts a perl string into the special encoding used by rxvt-unicode, 1008Converts a perl string into the special encoding used by rxvt-unicode,
504where one character corresponds to one screen cell. See 1009where one character corresponds to one screen cell. See
505C<< $term->ROW_t >> for details. 1010C<< $term->ROW_t >> for details.
509Converts rxvt-unicodes text reprsentation into a perl string. See 1014Converts rxvt-unicodes text reprsentation into a perl string. See
510C<< $term->ROW_t >> for details. 1015C<< $term->ROW_t >> for details.
511 1016
512=back 1017=back
513 1018
514=head2 RENDITION 1019=head2 The C<urxvt::popup> Class
515 1020
516Rendition bitsets contain information about colour, font, font styles and
517similar information for each screen cell.
518
519The following "macros" deal with changes in rendition sets. You should
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
524=over 4 1021=over 4
525
526=item $rend = urxvt::DEFAULT_RSTYLE
527
528Returns the default rendition, as used when the terminal is starting up or
529being reset. Useful as a base
530
531=back
532 1022
533=cut 1023=cut
1024
1025package urxvt::popup;
1026
1027sub add_item {
1028 my ($self, $item) = @_;
1029
1030 $item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
1031 $item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
1032 $item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
1033
1034 $item->{render} ||= sub { $_[0]{text} };
1035
1036 push @{ $self->{item} }, $item;
1037}
1038
1039sub add_separator {
1040 my ($self, $sep) = @_;
1041
1042 $sep ||= "═";
1043
1044 $self->add_item ({
1045 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1046 text => "",
1047 render => sub { $sep x $urxvt::TERM->ncol },
1048 activate => sub { },
1049 });
1050}
1051
1052sub add_title {
1053 my ($self, $title) = @_;
1054
1055 $self->add_item ({
1056 rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
1057 text => $title,
1058 activate => sub { },
1059 });
1060}
1061
1062sub add_button {
1063 my ($self, $text, $cb) = @_;
1064
1065 $self->add_item ({ type => "button", text => "[ $text ]", activate => $cb});
1066}
1067
1068sub add_toggle {
1069 my ($self, $text, $cb, $value) = @_;
1070
1071 my $item; $item = {
1072 type => "button",
1073 text => " $text",
1074 value => $value,
1075 render => sub { ($item->{value} ? "* " : " ") . $text },
1076 activate => sub { $cb->($item->{value} = !$item->{value}); },
1077 };
1078
1079 $self->add_item ($item);
1080}
1081
1082sub show {
1083 my ($self) = @_;
1084
1085 local $urxvt::popup::self = $self;
1086
1087 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,
1088 "--transient-for" => $self->{term}->parent,
1089 "-pe" => "urxvt-popup")
1090 or die "unable to create popup window\n";
1091}
1092
1093sub DESTROY {
1094 my ($self) = @_;
1095
1096 $self->{term}->ungrab;
1097}
534 1098
535=head2 The C<urxvt::timer> Class 1099=head2 The C<urxvt::timer> Class
536 1100
537This class implements timer watchers/events. Time is represented as a 1101This class implements timer watchers/events. Time is represented as a
538fractional number of seconds since the epoch. Example: 1102fractional number of seconds since the epoch. Example:
539 1103
540 # create a digital clock display in upper right corner 1104 $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
541 $term->{timer} = urxvt::timer 1105 $term->{timer} = urxvt::timer
542 ->new 1106 ->new
543 ->start (urxvt::NOW) 1107 ->interval (1)
544 ->cb (sub { 1108 ->cb (sub {
545 my ($timer) = @_;
546 my $time = $timer->at;
547 $timer->start ($time + 1);
548 $self->scr_overlay (-1, 0, 1109 $term->{overlay}->set (0, 0,
549 POSIX::strftime "%H:%M:%S", localtime $time); 1110 sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
550 }); 1111 });
551 1112
552=over 4 1113=over 4
553 1114
554=item $timer = new urxvt::timer 1115=item $timer = new urxvt::timer
555 1116
556Create a new timer object in stopped state. 1117Create a new timer object in started state. It is scheduled to fire
1118immediately.
557 1119
558=item $timer = $timer->cb (sub { my ($timer) = @_; ... }) 1120=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
559 1121
560Set the callback to be called when the timer triggers. 1122Set the callback to be called when the timer triggers.
561 1123
564Return the time this watcher will fire next. 1126Return the time this watcher will fire next.
565 1127
566=item $timer = $timer->set ($tstamp) 1128=item $timer = $timer->set ($tstamp)
567 1129
568Set the time the event is generated to $tstamp. 1130Set the time the event is generated to $tstamp.
1131
1132=item $timer = $timer->interval ($interval)
1133
1134Normally (and when C<$interval> is C<0>), the timer will automatically
1135stop after it has fired once. If C<$interval> is non-zero, then the timer
1136is automatically rescheduled at the given intervals.
569 1137
570=item $timer = $timer->start 1138=item $timer = $timer->start
571 1139
572Start the timer. 1140Start the timer.
573 1141
636This variable controls the verbosity level of the perl extension. Higher 1204This variable controls the verbosity level of the perl extension. Higher
637numbers indicate more verbose output. 1205numbers indicate more verbose output.
638 1206
639=over 4 1207=over 4
640 1208
641=item 0 - only fatal messages 1209=item =0 - only fatal messages
642 1210
643=item 3 - script loading and management 1211=item =3 - script loading and management
644 1212
645=item 10 - all events received 1213=item =10 - all events received
646 1214
647=back 1215=back
648 1216
649=head1 AUTHOR 1217=head1 AUTHOR
650 1218

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