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Revision 1.15 by root, Tue Jan 3 01:39:17 2006 UTC vs.
Revision 1.49 by root, Sun Jan 8 00:07:18 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
292=back
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
172=back 303=back
173 304
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 @ext = (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2);
277 487
278 for my $ext (split /:/, $term->resource ("perl_ext")) { 488 while (@ext) {
279 my @files = grep -f $_, map "$_/$ext", @dirs; 489 my $ext = shift @ext;
280 490 if ($ext eq "default") {
281 if (@files) { 491 unshift @ext, qw(selection);
282 register_package script_package $files[0];
283 } else { 492 } else {
493 my @files = grep -f $_, map "$_/$ext", @dirs;
494
495 if (@files) {
496 register_package extension_package $files[0];
497 } else {
284 warn "perl extension '$ext' not found in perl library search path\n"; 498 warn "perl extension '$ext' not found in perl library search path\n";
499 }
285 } 500 }
286 } 501 }
502 }
287 503
504 $retval = undef;
505
506 if (my $cb = $TERM->{_hook}[$htype]) {
507 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
508 if $verbosity >= 10;
509
510 keys %$cb;
511
512 while (my ($pkg, $cb) = each %$cb) {
513 eval {
514 $retval = $cb->(
515 $TERM->{_pkg}{$pkg} ||= do {
516 my $proxy = bless { }, $pkg;
517 Scalar::Util::weaken ($proxy->{term} = $TERM);
518 $proxy
519 },
520 @_,
521 ) and last;
522 };
523 warn $@ if $@;#d#
524 }
525 }
526
288 } elsif ($htype == 1) { # DESTROY 527 if ($htype == 1) { # DESTROY
528 # remove hooks if unused
289 if (my $hook = $term->{_hook}) { 529 if (my $hook = $TERM->{_hook}) {
290 for my $htype (0..$#$hook) { 530 for my $htype (0..$#$hook) {
291 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 531 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
292 or set_should_invoke $htype, 0; 532 or set_should_invoke $htype, 0;
293 } 533 }
294 } 534 }
535
536 # clear package objects
537 %$_ = () for values %{ $TERM->{_pkg} };
538
539 # clear package
540 %$TERM = ();
295 } 541 }
296 542
297 my $cb = $term->{_hook}[$htype] 543 $retval
298 or return;
299
300 verbose 10, "$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} 544}
309 545
310=back 546sub urxvt::term::proxy::AUTOLOAD {
547 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/
548 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";
549
550 eval qq{
551 sub $urxvt::term::proxy::AUTOLOAD {
552 my \$proxy = shift;
553 \$proxy->{term}->$1 (\@_)
554 }
555 1
556 } or die "FATAL: unable to compile method forwarder: $@";
557
558 goto &$urxvt::term::proxy::AUTOLOAD;
559}
560
561sub urxvt::destroy_hook::DESTROY {
562 ${$_[0]}->();
563}
564
565sub urxvt::destroy_hook(&) {
566 bless \shift, urxvt::destroy_hook::
567}
311 568
312=head2 The C<urxvt::term> Class 569=head2 The C<urxvt::term> Class
313 570
314=over 4 571=over 4
572
573=item $term->destroy
574
575Destroy the terminal object (close the window, free resources etc.).
576
577=item $isset = $term->option ($optval[, $set])
578
579Returns true if the option specified by C<$optval> is enabled, and
580optionally change it. All option values are stored by name in the hash
581C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
582
583Here is a a likely non-exhaustive list of option names, please see the
584source file F</src/optinc.h> to see the actual list:
585
586 borderLess console cursorBlink cursorUnderline hold iconic insecure
587 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
588 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating
589 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer
590 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent
591 tripleclickwords utmpInhibit visualBell
315 592
316=item $value = $term->resource ($name[, $newval]) 593=item $value = $term->resource ($name[, $newval])
317 594
318Returns the current resource value associated with a given name and 595Returns the current resource value associated with a given name and
319optionally sets a new value. Setting values is most useful in the C<init> 596optionally sets a new value. Setting values is most useful in the C<init>
329 606
330Please note that resource strings will currently only be freed when the 607Please note that resource strings will currently only be freed when the
331terminal is destroyed, so changing options frequently will eat memory. 608terminal is destroyed, so changing options frequently will eat memory.
332 609
333Here is a a likely non-exhaustive list of resource names, not all of which 610Here 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 611are supported in every build, please see the source file F</src/rsinc.h>
335list: 612to see the actual list:
336 613
337 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 614 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
338 borderLess color cursorBlink cursorUnderline cutchars delete_key 615 borderLess color cursorBlink cursorUnderline cutchars delete_key
339 display_name embed ext_bwidth fade font geometry hold iconName 616 display_name embed ext_bwidth fade font geometry hold iconName
340 imFont imLocale inputMethod insecure int_bwidth intensityStyles 617 imFont imLocale inputMethod insecure int_bwidth intensityStyles
341 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 618 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
342 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext 619 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
343 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 620 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
344 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 621 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
345 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 622 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
346 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 623 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
347 shade term_name title transparent transparent_all tripleclickwords 624 shade term_name title transparent transparent_all tripleclickwords
350=cut 627=cut
351 628
352sub urxvt::term::resource($$;$) { 629sub urxvt::term::resource($$;$) {
353 my ($self, $name) = (shift, shift); 630 my ($self, $name) = (shift, shift);
354 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 631 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
355 goto &urxvt::term::_resource; 632 &urxvt::term::_resource
356} 633}
634
635=item $rend = $term->rstyle ([$new_rstyle])
636
637Return and optionally change the current rendition. Text that is output by
638the terminal application will use this style.
639
640=item ($row, $col) = $term->screen_cur ([$row, $col])
641
642Return the current coordinates of the text cursor position and optionally
643set it (which is usually bad as applications don't expect that).
357 644
358=item ($row, $col) = $term->selection_mark ([$row, $col]) 645=item ($row, $col) = $term->selection_mark ([$row, $col])
359 646
360=item ($row, $col) = $term->selection_beg ([$row, $col]) 647=item ($row, $col) = $term->selection_beg ([$row, $col])
361 648
371 658
372=item $oldtext = $term->selection ([$newtext]) 659=item $oldtext = $term->selection ([$newtext])
373 660
374Return the current selection text and optionally replace it by C<$newtext>. 661Return the current selection text and optionally replace it by C<$newtext>.
375 662
376=item $term->scr_overlay ($x, $y, $text) 663#=item $term->overlay ($x, $y, $text)
377 664#
378Create a simple multi-line overlay box. See the next method for details. 665#Create a simple multi-line overlay box. See the next method for details.
666#
667#=cut
668#
669#sub urxvt::term::scr_overlay {
670# my ($self, $x, $y, $text) = @_;
671#
672# my @lines = split /\n/, $text;
673#
674# my $w = 0;
675# for (map $self->strwidth ($_), @lines) {
676# $w = $_ if $w < $_;
677# }
678#
679# $self->scr_overlay_new ($x, $y, $w, scalar @lines);
680# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
681#}
682
683=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
684
685Create a new (empty) overlay at the given position with the given
686width/height. C<$rstyle> defines the initial rendition style
687(default: C<OVERLAY_RSTYLE>).
688
689If C<$border> is C<2> (default), then a decorative border will be put
690around the box.
691
692If either C<$x> or C<$y> is negative, then this is counted from the
693right/bottom side, respectively.
694
695This method returns an urxvt::overlay object. The overlay will be visible
696as long as the perl object is referenced.
697
698The methods currently supported on C<urxvt::overlay> objects are:
699
700=over 4
701
702=item $overlay->set ($x, $y, $text, $rend)
703
704Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
705text in rxvt-unicode's special encoding and an array of rendition values
706at a specific position inside the overlay.
707
708=item $overlay->hide
709
710If visible, hide the overlay, but do not destroy it.
711
712=item $overlay->show
713
714If hidden, display the overlay again.
715
716=back
717
718=item $popup = $term->popup ($event)
719
720Creates a new C<urxvt::popup> object that implements a popup menu. The
721C<$event> I<must> be the event causing the menu to pop up (a button event,
722currently).
379 723
380=cut 724=cut
381 725
382sub urxvt::term::scr_overlay { 726sub urxvt::term::popup {
383 my ($self, $x, $y, $text) = @_; 727 my ($self, $event) = @_;
384 728
385 my @lines = split /\n/, $text; 729 $self->grab ($event->{time}, 1)
730 or return;
386 731
387 my $w = 0; 732 my $popup = bless {
388 for (map $self->strwidth ($_), @lines) { 733 term => $self,
389 $w = $_ if $w < $_; 734 event => $event,
390 } 735 }, urxvt::popup::;
391 736
392 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 737 Scalar::Util::weaken $popup->{term};
393 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
394}
395 738
396=item $term->scr_overlay_new ($x, $y, $width, $height) 739 $self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
740 Scalar::Util::weaken $self->{_destroy}{$popup};
397 741
398Create a new (empty) overlay at the given position with the given 742 $popup
399width/height. A border will be put around the box. If either C<$x> or 743}
400C<$y> is negative, then this is counted from the right/bottom side,
401respectively.
402 744
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 745=item $cellwidth = $term->strwidth ($string)
417 746
418Returns the number of screen-cells this string would need. Correctly 747Returns the number of screen-cells this string would need. Correctly
419accounts for wide and combining characters. 748accounts for wide and combining characters.
420 749
421=item $octets = $term->locale_encode $string 750=item $octets = $term->locale_encode ($string)
422 751
423Convert the given text string into the corresponding locale encoding. 752Convert the given text string into the corresponding locale encoding.
424 753
425=item $string = $term->locale_decode $octets 754=item $string = $term->locale_decode ($octets)
426 755
427Convert the given locale-encoded octets into a perl string. 756Convert the given locale-encoded octets into a perl string.
757
758=item $term->scr_add_lines ($string)
759
760Write the given text string to the screen, as if output by the application
761running inside the terminal. It may not contain command sequences (escape
762codes), but is free to use line feeds, carriage returns and tabs. The
763string is a normal text string, not in locale-dependent encoding.
764
765Normally its not a good idea to use this function, as programs might be
766confused by changes in cursor position or scrolling. Its useful inside a
767C<on_add_lines> hook, though.
768
769=item $term->cmd_parse ($octets)
770
771Similar to C<scr_add_lines>, but the argument must be in the
772locale-specific encoding of the terminal and can contain command sequences
773(escape codes) that will be interpreted.
428 774
429=item $term->tt_write ($octets) 775=item $term->tt_write ($octets)
430 776
431Write the octets given in C<$data> to the tty (i.e. as program input). To 777Write the octets given in C<$data> to the tty (i.e. as program input). To
432pass characters instead of octets, you should convert your strings first 778pass characters instead of octets, you should convert your strings first
433to the locale-specific encoding using C<< $term->locale_encode >>. 779to the locale-specific encoding using C<< $term->locale_encode >>.
434 780
781=item $windowid = $term->parent
782
783Return the window id of the toplevel window.
784
785=item $windowid = $term->vt
786
787Return the window id of the terminal window.
788
789=item $window_width = $term->width
790
791=item $window_height = $term->height
792
793=item $font_width = $term->fwidth
794
795=item $font_height = $term->fheight
796
797=item $font_ascent = $term->fbase
798
435=item $nrow = $term->nrow 799=item $terminal_rows = $term->nrow
436 800
437=item $ncol = $term->ncol 801=item $terminal_columns = $term->ncol
438 802
439Return the number of rows/columns of the terminal window (i.e. as 803=item $has_focus = $term->focus
440specified by C<-geometry>, excluding any scrollback).
441 804
442=item $nsaved = $term->nsaved 805=item $is_mapped = $term->mapped
443 806
444Returns the number of lines in the scrollback buffer. 807=item $max_scrollback = $term->saveLines
808
809=item $nrow_plus_saveLines = $term->total_rows
810
811=item $lines_in_scrollback = $term->nsaved
812
813Return various integers describing terminal characteristics.
814
815=item $modifiermask = $term->ModLevel3Mask
816
817=item $modifiermask = $term->ModMetaMask
818
819=item $modifiermask = $term->ModNumLockMask
820
821Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
822AltGr), the meta key (often Alt) and the num lock key, if applicable.
445 823
446=item $view_start = $term->view_start ([$newvalue]) 824=item $view_start = $term->view_start ([$newvalue])
447 825
448Returns the negative row number of the topmost line. Minimum value is 826Returns the negative row number of the topmost line. Minimum value is
449C<0>, which displays the normal terminal contents. Larger values scroll 827C<0>, which displays the normal terminal contents. Larger values scroll
460=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) 838=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
461 839
462Returns the text of the entire row with number C<$row_number>. Row C<0> 840Returns 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 841is 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 842terminal line. The scrollback buffer starts at line C<-1> and extends to
465line C<< -$term->nsaved >>. 843line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line
844is requested.
466 845
467If C<$new_text> is specified, it will replace characters in the current 846If C<$new_text> is specified, it will replace characters in the current
468line, starting at column C<$start_col> (default C<0>), which is useful 847line, starting at column C<$start_col> (default C<0>), which is useful
469to replace only parts of a line. The font iindex in the rendition will 848to replace only parts of a line. The font index in the rendition will
470automatically be updated. 849automatically be updated.
471 850
472C<$text> is in a special encoding: tabs and wide characters that use more 851C<$text> is in a special encoding: tabs and wide characters that use more
473than one cell when displayed are padded with urxvt::NOCHAR characters 852than one cell when displayed are padded with urxvt::NOCHAR characters
474(C<chr 65535>). Characters with combining characters and other characters 853(C<chr 65535>). Characters with combining characters and other characters
488bitsets. Rendition bitsets contain information about colour, font, font 867bitsets. Rendition bitsets contain information about colour, font, font
489styles and similar information. See also C<< $term->ROW_t >>. 868styles and similar information. See also C<< $term->ROW_t >>.
490 869
491When setting rendition, the font mask will be ignored. 870When setting rendition, the font mask will be ignored.
492 871
493See the section on RENDITION, below. 872See the section on RENDITION, above.
494 873
495=item $length = $term->ROW_l ($row_number[, $new_length]) 874=item $length = $term->ROW_l ($row_number[, $new_length])
496 875
497Returns the number of screen cells that are in use ("the line length"). If 876Returns 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 877length"). 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. 878line is joined with the following one.
500 879
880=item $bool = $term->is_longer ($row_number)
881
882Returns true if the row is part of a multiple-row logical "line" (i.e.
883joined with the following row), which means all characters are in use
884and it is continued on the next row (and possibly a continuation of the
885previous row(s)).
886
887=item $line = $term->line ($row_number)
888
889Create and return a new C<urxvt::line> object that stores information
890about the logical line that row C<$row_number> is part of. It supports the
891following methods:
892
893=over 4
894
895=item $text = $line->t ([$new_text])
896
897Returns or replaces the full text of the line, similar to C<ROW_t>
898
899=item $rend = $line->r ([$new_rend])
900
901Returns or replaces the full rendition array of the line, similar to C<ROW_r>
902
903=item $length = $line->l
904
905Returns the length of the line in cells, similar to C<ROW_l>.
906
907=item $rownum = $line->beg
908
909=item $rownum = $line->end
910
911Return the row number of the first/last row of the line, respectively.
912
913=item $offset = $line->offset_of ($row, $col)
914
915Returns the character offset of the given row|col pair within the logical
916line.
917
918=item ($row, $col) = $line->coord_of ($offset)
919
920Translates a string offset into terminal coordinates again.
921
922=back
923
924=cut
925
926sub urxvt::term::line {
927 my ($self, $row) = @_;
928
929 my $maxrow = $self->nrow - 1;
930
931 my ($beg, $end) = ($row, $row);
932
933 --$beg while $self->ROW_is_longer ($beg - 1);
934 ++$end while $self->ROW_is_longer ($end) && $end < $maxrow;
935
936 bless {
937 term => $self,
938 beg => $beg,
939 end => $end,
940 ncol => $self->ncol,
941 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
942 }, urxvt::line::
943}
944
945sub urxvt::line::t {
946 my ($self) = @_;
947
948 if (@_ > 1)
949 {
950 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
951 for $self->{beg} .. $self->{end};
952 }
953
954 defined wantarray &&
955 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
956 0, $self->{len}
957}
958
959sub urxvt::line::r {
960 my ($self) = @_;
961
962 if (@_ > 1)
963 {
964 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
965 for $self->{beg} .. $self->{end};
966 }
967
968 if (defined wantarray) {
969 my $rend = [
970 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
971 ];
972 $#$rend = $self->{len} - 1;
973 return $rend;
974 }
975
976 ()
977}
978
979sub urxvt::line::beg { $_[0]{beg} }
980sub urxvt::line::end { $_[0]{end} }
981sub urxvt::line::l { $_[0]{len} }
982
983sub urxvt::line::offset_of {
984 my ($self, $row, $col) = @_;
985
986 ($row - $self->{beg}) * $self->{ncol} + $col
987}
988
989sub urxvt::line::coord_of {
990 my ($self, $offset) = @_;
991
992 use integer;
993
994 (
995 $offset / $self->{ncol} + $self->{beg},
996 $offset % $self->{ncol}
997 )
998}
999
1000=item ($row, $col) = $line->coord_of ($offset)
501=item $text = $term->special_encode $string 1001=item $text = $term->special_encode $string
502 1002
503Converts a perl string into the special encoding used by rxvt-unicode, 1003Converts a perl string into the special encoding used by rxvt-unicode,
504where one character corresponds to one screen cell. See 1004where one character corresponds to one screen cell. See
505C<< $term->ROW_t >> for details. 1005C<< $term->ROW_t >> for details.
509Converts rxvt-unicodes text reprsentation into a perl string. See 1009Converts rxvt-unicodes text reprsentation into a perl string. See
510C<< $term->ROW_t >> for details. 1010C<< $term->ROW_t >> for details.
511 1011
512=back 1012=back
513 1013
514=head2 RENDITION 1014=head2 The C<urxvt::popup> Class
515 1015
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 1016=over 4
525
526=item $rend = urxvt::DEFAULT_RSTYLE
527
528Returns the default rendition, as used when the terminal is starting up or
529being reset. Useful as a base
530
531=back
532 1017
533=cut 1018=cut
1019
1020package urxvt::popup;
1021
1022sub add_item {
1023 my ($self, $item) = @_;
1024
1025 push @{ $self->{item} }, $item;
1026}
1027
1028sub add_button {
1029 my ($self, $text, $cb) = @_;
1030
1031 $self->add_item ({ type => "button", text => "[ $text ]", activate => $cb,
1032 render => sub { $_[0]{text} },
1033 });
1034}
1035
1036sub add_toggle {
1037 my ($self, $text, $cb, $value) = @_;
1038
1039 my $item; $item = {
1040 type => "button",
1041 text => " $text",
1042 value => $value,
1043 render => sub { ($item->{value} ? "✔" : " ") . $text },
1044 activate => sub { $cb->($item->{value} = !$item->{value}); },
1045 };
1046
1047 $self->add_item ($item);
1048}
1049
1050sub show {
1051 my ($self) = @_;
1052
1053 local $urxvt::popup::self = $self;
1054
1055 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,
1056 "--transient-for" => $self->{term}->parent,
1057 "-pe" => "urxvt-popup")
1058 or die "unable to create popup window\n";
1059}
1060
1061sub DESTROY {
1062 my ($self) = @_;
1063
1064 $self->{term}->ungrab;
1065}
534 1066
535=head2 The C<urxvt::timer> Class 1067=head2 The C<urxvt::timer> Class
536 1068
537This class implements timer watchers/events. Time is represented as a 1069This class implements timer watchers/events. Time is represented as a
538fractional number of seconds since the epoch. Example: 1070fractional number of seconds since the epoch. Example:
539 1071
540 # create a digital clock display in upper right corner 1072 $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
541 $term->{timer} = urxvt::timer 1073 $term->{timer} = urxvt::timer
542 ->new 1074 ->new
543 ->start (urxvt::NOW) 1075 ->interval (1)
544 ->cb (sub { 1076 ->cb (sub {
545 my ($timer) = @_;
546 my $time = $timer->at;
547 $timer->start ($time + 1);
548 $self->scr_overlay (-1, 0, 1077 $term->{overlay}->set (0, 0,
549 POSIX::strftime "%H:%M:%S", localtime $time); 1078 sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
550 }); 1079 });
551 1080
552=over 4 1081=over 4
553 1082
554=item $timer = new urxvt::timer 1083=item $timer = new urxvt::timer
555 1084
556Create a new timer object in stopped state. 1085Create a new timer object in started state. It is scheduled to fire
1086immediately.
557 1087
558=item $timer = $timer->cb (sub { my ($timer) = @_; ... }) 1088=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
559 1089
560Set the callback to be called when the timer triggers. 1090Set the callback to be called when the timer triggers.
561 1091
564Return the time this watcher will fire next. 1094Return the time this watcher will fire next.
565 1095
566=item $timer = $timer->set ($tstamp) 1096=item $timer = $timer->set ($tstamp)
567 1097
568Set the time the event is generated to $tstamp. 1098Set the time the event is generated to $tstamp.
1099
1100=item $timer = $timer->interval ($interval)
1101
1102Normally (and when C<$interval> is C<0>), the timer will automatically
1103stop after it has fired once. If C<$interval> is non-zero, then the timer
1104is automatically rescheduled at the given intervals.
569 1105
570=item $timer = $timer->start 1106=item $timer = $timer->start
571 1107
572Start the timer. 1108Start the timer.
573 1109
636This variable controls the verbosity level of the perl extension. Higher 1172This variable controls the verbosity level of the perl extension. Higher
637numbers indicate more verbose output. 1173numbers indicate more verbose output.
638 1174
639=over 4 1175=over 4
640 1176
641=item 0 - only fatal messages 1177=item =0 - only fatal messages
642 1178
643=item 3 - script loading and management 1179=item =3 - script loading and management
644 1180
645=item 10 - all events received 1181=item =10 - all events received
646 1182
647=back 1183=back
648 1184
649=head1 AUTHOR 1185=head1 AUTHOR
650 1186

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