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Revision 1.13 by root, Tue Jan 3 00:06:57 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.
30
31=head2 Prepackaged Extensions
32
33This section describes the extensiosn delivered with this version. You can
34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35
36You can activate them like this:
37
38 @@RXVT_NAME@@ -pe <extensionname>
39
40=over 4
41
42=item selection
43
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:
50
51=over 4
52
53=item rot13
54
55Rot-13 the selection when activated. Used via keyboard trigger:
56
57 URxvt.keysym.C-M-r: perl:selection:rot13
58
59=back
60
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
76
77Displays a very simple digital clock in the upper right corner of the
78window. Illustrates overwriting the refresh callbacks to create your own
79overlays or changes.
80
81=back
28 82
29=head2 General API Considerations 83=head2 General API Considerations
30 84
31All objects (such as terminals, time watchers etc.) are typical 85All objects (such as terminals, time watchers etc.) are typical
32reference-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
33like. All members starting with an underscore (such as C<_ptr> or 87like. All members starting with an underscore (such as C<_ptr> or
34C<_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
35modified). 89modified).
36 90
37When 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
38emptied, 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
39the 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
40terminal is destroyed. 94terminal is destroyed.
41 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
42=head2 Hooks 119=head2 Hooks
43 120
44The following subroutines can be declared in loaded scripts, and will be called 121The following subroutines can be declared in extension files, and will be
45whenever 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.
46 130
47All 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
48counts 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,
49and 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.
50 134
53=over 4 137=over 4
54 138
55=item on_init $term 139=item on_init $term
56 140
57Called after a new terminal object has been initialized, but before 141Called after a new terminal object has been initialized, but before
58windows 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.
59 146
60=item on_reset $term 147=item on_reset $term
61 148
62Called 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
63control 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
83requested from the server. The selection text can be queried and changed 170requested from the server. The selection text can be queried and changed
84by calling C<< $term->selection >>. 171by calling C<< $term->selection >>.
85 172
86Returning a true value aborts selection grabbing. It will still be hilighted. 173Returning a true value aborts selection grabbing. It will still be hilighted.
87 174
88=item on_focus_in $term 175=item on_sel_extend $term
89 176
90Called whenever the window gets the keyboard focus, before urxvt does 177Called whenever the user tries to extend the selection (e.g. with a double
91focus in processing. 178click) and is either supposed to return false (normal operation), or
92 179should extend the selection itelf and return true to suppress the built-in
93=item on_focus_out $term
94
95Called wheneever the window loses keyboard focus, before urxvt does focus
96out processing. 180processing.
181
182See the F<selection> example extension.
97 183
98=item on_view_change $term, $offset 184=item on_view_change $term, $offset
99 185
100Called whenever the view offset changes, i..e the user or program 186Called whenever the view offset changes, i..e the user or program
101scrolls. Offset C<0> means display the normal terminal, positive values 187scrolls. Offset C<0> means display the normal terminal, positive values
112number of lines that will be in the scrollback buffer. 198number of lines that will be in the scrollback buffer.
113 199
114=item on_tty_activity $term *NYI* 200=item on_tty_activity $term *NYI*
115 201
116Called 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.
117 238
118=item on_refresh_begin $term 239=item on_refresh_begin $term
119 240
120Called just before the screen gets redrawn. Can be used for overlay 241Called just before the screen gets redrawn. Can be used for overlay
121or similar effects by modify terminal contents in refresh_begin, and 242or similar effects by modify terminal contents in refresh_begin, and
130 251
131Called whenever the user presses a key combination that has a 252Called whenever the user presses a key combination that has a
132C<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>
133resource in the @@RXVT_NAME@@(1) manpage). 254resource in the @@RXVT_NAME@@(1) manpage).
134 255
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
135=back 303=back
136 304
137=head2 Functions in the C<urxvt> Package 305=head2 Functions in the C<urxvt> Package
138 306
139=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.
140 316
141=item urxvt::fatal $errormessage 317=item urxvt::fatal $errormessage
142 318
143Fatally aborts execution with the given error message. Avoid at all 319Fatally aborts execution with the given error message. Avoid at all
144costs! The only time this is acceptable is when the terminal process 320costs! The only time this is acceptable is when the terminal process
155 331
156=item $time = urxvt::NOW 332=item $time = urxvt::NOW
157 333
158Returns the "current time" (as per the event loop). 334Returns the "current time" (as per the event loop).
159 335
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
160=cut 398=cut
161 399
162package urxvt; 400package urxvt;
163 401
402use utf8;
164use strict; 403use strict;
404use Scalar::Util ();
405use List::Util ();
165 406
166our $term; 407our $TERM;
167our @HOOKNAME; 408our @HOOKNAME;
409our %OPTION;
168our $LIBDIR; 410our $LIBDIR;
169 411
170BEGIN { 412BEGIN {
171 urxvt->bootstrap; 413 urxvt->bootstrap;
172 414
196 my $name = $HOOKNAME[$htype]; 438 my $name = $HOOKNAME[$htype];
197 439
198 my $ref = $pkg->can ("on_" . lc $name) 440 my $ref = $pkg->can ("on_" . lc $name)
199 or next; 441 or next;
200 442
201 $term->{_hook}[$htype]{$ref*1} = $ref; 443 $TERM->{_hook}[$htype]{$pkg} = $ref;
202 $hook_count[$htype]++ 444 $hook_count[$htype]++
203 or set_should_invoke $htype, 1; 445 or set_should_invoke $htype, 1;
204 } 446 }
205} 447}
206 448
207my $script_pkg = "script0000"; 449my $extension_pkg = "extension0000";
208my %script_pkg; 450my %extension_pkg;
209 451
210# load a single script into its own package, once only 452# load a single script into its own package, once only
211sub script_package($) { 453sub extension_package($) {
212 my ($path) = @_; 454 my ($path) = @_;
213 455
214 $script_pkg{$path} ||= do { 456 $extension_pkg{$path} ||= do {
215 my $pkg = "urxvt::" . ($script_pkg++); 457 my $pkg = "urxvt::" . ($extension_pkg++);
216 458
217 verbose 3, "loading script '$path' into package '$pkg'"; 459 verbose 3, "loading extension '$path' into package '$pkg'";
218 460
219 open my $fh, "<:raw", $path 461 open my $fh, "<:raw", $path
220 or die "$path: $!"; 462 or die "$path: $!";
221 463
222 my $source = "package $pkg; use strict; use utf8;\n" 464 my $source = "package $pkg; use strict; use utf8;\n"
465 . "use base urxvt::term::proxy::;\n"
223 . "#line 1 \"$path\"\n{\n" 466 . "#line 1 \"$path\"\n{\n"
224 . (do { local $/; <$fh> }) 467 . (do { local $/; <$fh> })
225 . "\n};\n1"; 468 . "\n};\n1";
226 469
227 eval $source or die "$path: $@"; 470 eval $source or die "$path: $@";
228 471
229 $pkg 472 $pkg
230 } 473 }
231} 474}
232 475
476our $retval; # return value for urxvt
477
233# called by the rxvt core 478# called by the rxvt core
234sub invoke { 479sub invoke {
235 local $term = shift; 480 local $TERM = shift;
236 my $htype = shift; 481 my $htype = shift;
237 482
238 if ($htype == 0) { # INIT 483 if ($htype == 0) { # INIT
239 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);
240 487
241 for my $ext (split /:/, $term->resource ("perl_ext")) { 488 while (@ext) {
242 my @files = grep -f $_, map "$_/$ext", @dirs; 489 my $ext = shift @ext;
243 490 if ($ext eq "default") {
244 if (@files) { 491 unshift @ext, qw(selection);
245 register_package script_package $files[0];
246 } else { 492 } else {
493 my @files = grep -f $_, map "$_/$ext", @dirs;
494
495 if (@files) {
496 register_package extension_package $files[0];
497 } else {
247 warn "perl extension '$ext' not found in perl library search path\n"; 498 warn "perl extension '$ext' not found in perl library search path\n";
499 }
248 } 500 }
249 } 501 }
502 }
250 503
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 $@;#d#
524 }
525 }
526
251 } elsif ($htype == 1) { # DESTROY 527 if ($htype == 1) { # DESTROY
528 # remove hooks if unused
252 if (my $hook = $term->{_hook}) { 529 if (my $hook = $TERM->{_hook}) {
253 for my $htype (0..$#$hook) { 530 for my $htype (0..$#$hook) {
254 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 531 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
255 or set_should_invoke $htype, 0; 532 or set_should_invoke $htype, 0;
256 } 533 }
257 } 534 }
535
536 # clear package objects
537 %$_ = () for values %{ $TERM->{_pkg} };
538
539 # clear package
540 %$TERM = ();
258 } 541 }
259 542
260 my $cb = $term->{_hook}[$htype] 543 $retval
261 or return;
262
263 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")"
264 if $verbosity >= 10;
265
266 while (my ($k, $v) = each %$cb) {
267 return 1 if $v->($term, @_);
268 }
269
270 0
271} 544}
272 545
273=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}
274 568
275=head2 The C<urxvt::term> Class 569=head2 The C<urxvt::term> Class
276 570
277=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
278 592
279=item $value = $term->resource ($name[, $newval]) 593=item $value = $term->resource ($name[, $newval])
280 594
281Returns the current resource value associated with a given name and 595Returns the current resource value associated with a given name and
282optionally 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>
292 606
293Please note that resource strings will currently only be freed when the 607Please note that resource strings will currently only be freed when the
294terminal is destroyed, so changing options frequently will eat memory. 608terminal is destroyed, so changing options frequently will eat memory.
295 609
296Here 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
297are 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>
298list: 612to see the actual list:
299 613
300 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 614 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
301 borderLess color cursorBlink cursorUnderline cutchars delete_key 615 borderLess color cursorBlink cursorUnderline cutchars delete_key
302 display_name embed ext_bwidth fade font geometry hold iconName 616 display_name embed ext_bwidth fade font geometry hold iconName
303 imFont imLocale inputMethod insecure int_bwidth intensityStyles 617 imFont imLocale inputMethod insecure int_bwidth intensityStyles
304 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 618 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
305 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext 619 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
306 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 620 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
307 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 621 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
308 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 622 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
309 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 623 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
310 shade term_name title transparent transparent_all tripleclickwords 624 shade term_name title transparent transparent_all tripleclickwords
313=cut 627=cut
314 628
315sub urxvt::term::resource($$;$) { 629sub urxvt::term::resource($$;$) {
316 my ($self, $name) = (shift, shift); 630 my ($self, $name) = (shift, shift);
317 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 631 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
318 goto &urxvt::term::_resource; 632 &urxvt::term::_resource
319} 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, $col])
641
642Return the current coordinates of the text cursor position and optionally
643set it (which is usually bad as applications don't expect that).
320 644
321=item ($row, $col) = $term->selection_mark ([$row, $col]) 645=item ($row, $col) = $term->selection_mark ([$row, $col])
322 646
323=item ($row, $col) = $term->selection_beg ([$row, $col]) 647=item ($row, $col) = $term->selection_beg ([$row, $col])
324 648
334 658
335=item $oldtext = $term->selection ([$newtext]) 659=item $oldtext = $term->selection ([$newtext])
336 660
337Return the current selection text and optionally replace it by C<$newtext>. 661Return the current selection text and optionally replace it by C<$newtext>.
338 662
339=item $term->scr_overlay ($x, $y, $text) 663#=item $term->overlay ($x, $y, $text)
340 664#
341Create a simple multi-line overlay box. See the next method for details. 665#Create a simple multi-line overlay box. See the next method for details.
666#
667#=cut
668#
669#sub urxvt::term::scr_overlay {
670# my ($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<$event> I<must> be the event causing the menu to pop up (a button event,
722currently).
342 723
343=cut 724=cut
344 725
345sub urxvt::term::scr_overlay { 726sub urxvt::term::popup {
346 my ($self, $x, $y, $text) = @_; 727 my ($self, $event) = @_;
347 728
348 my @lines = split /\n/, $text; 729 $self->grab ($event->{time}, 1)
730 or return;
349 731
350 my $w = 0; 732 my $popup = bless {
351 for (map $self->strwidth ($_), @lines) { 733 term => $self,
352 $w = $_ if $w < $_; 734 event => $event,
353 } 735 }, urxvt::popup::;
354 736
355 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 737 Scalar::Util::weaken $popup->{term};
356 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
357}
358 738
359=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};
360 741
361Create a new (empty) overlay at the given position with the given 742 $popup
362width/height. A border will be put around the box. If either C<$x> or 743}
363C<$y> is negative, then this is counted from the right/bottom side,
364respectively.
365 744
366=item $term->scr_overlay_off
367
368Switch the overlay off again.
369
370=item $term->scr_overlay_set_char ($x, $y, $char, $rend = OVERLAY_RSTYLE)
371
372Put a single character (specified numerically) at the given overlay
373position.
374
375=item $term->scr_overlay_set ($x, $y, $text)
376
377Write a string at the given position into the overlay.
378
379=item $cellwidth = $term->strwidth $string 745=item $cellwidth = $term->strwidth ($string)
380 746
381Returns the number of screen-cells this string would need. Correctly 747Returns the number of screen-cells this string would need. Correctly
382accounts for wide and combining characters. 748accounts for wide and combining characters.
383 749
384=item $octets = $term->locale_encode $string 750=item $octets = $term->locale_encode ($string)
385 751
386Convert the given text string into the corresponding locale encoding. 752Convert the given text string into the corresponding locale encoding.
387 753
388=item $string = $term->locale_decode $octets 754=item $string = $term->locale_decode ($octets)
389 755
390Convert 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.
391 774
392=item $term->tt_write ($octets) 775=item $term->tt_write ($octets)
393 776
394Write 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
395pass characters instead of octets, you should convert your strings first 778pass characters instead of octets, you should convert your strings first
396to the locale-specific encoding using C<< $term->locale_encode >>. 779to the locale-specific encoding using C<< $term->locale_encode >>.
397 780
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
398=item $nrow = $term->nrow 799=item $terminal_rows = $term->nrow
399 800
400=item $ncol = $term->ncol 801=item $terminal_columns = $term->ncol
401 802
402Return the number of rows/columns of the terminal window (i.e. as 803=item $has_focus = $term->focus
403specified by C<-geometry>, excluding any scrollback).
404 804
405=item $nsaved = $term->nsaved 805=item $is_mapped = $term->mapped
406 806
407Returns 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.
408 823
409=item $view_start = $term->view_start ([$newvalue]) 824=item $view_start = $term->view_start ([$newvalue])
410 825
411Returns the negative row number of the topmost line. Minimum value is 826Returns the negative row number of the topmost line. Minimum value is
412C<0>, which displays the normal terminal contents. Larger values scroll 827C<0>, which displays the normal terminal contents. Larger values scroll
413this many lines into the scrollback buffer. 828this many lines into the scrollback buffer.
414 829
830=item $term->want_refresh
831
832Requests a screen refresh. At the next opportunity, rxvt-unicode will
833compare the on-screen display with its stored representation. If they
834differ, it redraws the differences.
835
836Used after changing terminal contents to display them.
837
415=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) 838=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
416 839
417Returns the text of the entire row with number C<$row_number>. Row C<0> 840Returns the text of the entire row with number C<$row_number>. Row C<0>
418is 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
419terminal 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
420line C<< -$term->nsaved >>. 843line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line
844is requested.
421 845
422If 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
423line, 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
424to 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
425automatically be updated. 849automatically be updated.
426 850
427C<$text> is in a special encoding: tabs and wide characters that use more 851C<$text> is in a special encoding: tabs and wide characters that use more
428than one cell when displayed are padded with urxvt::NOCHAR characters 852than one cell when displayed are padded with urxvt::NOCHAR characters
429(C<chr 65535>). Characters with combining characters and other characters 853(C<chr 65535>). Characters with combining characters and other characters
443bitsets. Rendition bitsets contain information about colour, font, font 867bitsets. Rendition bitsets contain information about colour, font, font
444styles and similar information. See also C<< $term->ROW_t >>. 868styles and similar information. See also C<< $term->ROW_t >>.
445 869
446When setting rendition, the font mask will be ignored. 870When setting rendition, the font mask will be ignored.
447 871
448See the section on RENDITION, below. 872See the section on RENDITION, above.
449 873
450=item $length = $term->ROW_l ($row_number[, $new_length]) 874=item $length = $term->ROW_l ($row_number[, $new_length])
451 875
452Returns 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
453it 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
454means all characters are in use and it is continued on the next row. 878line is joined with the following one.
455 879
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)
456=item $text = $term->special_encode $string 1001=item $text = $term->special_encode $string
457 1002
458Converts a perl string into the special encoding used by rxvt-unicode, 1003Converts a perl string into the special encoding used by rxvt-unicode,
459where one character corresponds to one screen cell. See 1004where one character corresponds to one screen cell. See
460C<< $term->ROW_t >> for details. 1005C<< $term->ROW_t >> for details.
464Converts rxvt-unicodes text reprsentation into a perl string. See 1009Converts rxvt-unicodes text reprsentation into a perl string. See
465C<< $term->ROW_t >> for details. 1010C<< $term->ROW_t >> for details.
466 1011
467=back 1012=back
468 1013
469=head2 RENDITION 1014=head2 The C<urxvt::popup> Class
470 1015
471Rendition bitsets contain information about colour, font, font styles and
472similar information for each screen cell.
473
474The following "macros" deal with changes in rendition sets. You should
475never just create a bitset, you should always modify an existing one,
476as they contain important information required for correct operation of
477rxvt-unicode.
478
479=over 4 1016=over 4
480
481=item $rend = urxvt::DEFAULT_RSTYLE
482
483Returns the default rendition, as used when the terminal is starting up or
484being reset. Useful as a base
485
486=back
487 1017
488=cut 1018=cut
1019
1020package urxvt::popup;
1021
1022sub add_item {
1023 my ($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}
489 1066
490=head2 The C<urxvt::timer> Class 1067=head2 The C<urxvt::timer> Class
491 1068
492This class implements timer watchers/events. Time is represented as a 1069This class implements timer watchers/events. Time is represented as a
493fractional number of seconds since the epoch. Example: 1070fractional number of seconds since the epoch. Example:
494 1071
495 # create a digital clock display in upper right corner 1072 $term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
496 $term->{timer} = urxvt::timer 1073 $term->{timer} = urxvt::timer
497 ->new 1074 ->new
498 ->start (urxvt::NOW) 1075 ->interval (1)
499 ->cb (sub { 1076 ->cb (sub {
500 my ($timer) = @_;
501 my $time = $timer->at;
502 $timer->start ($time + 1);
503 $self->scr_overlay (-1, 0, 1077 $term->{overlay}->set (0, 0,
504 POSIX::strftime "%H:%M:%S", localtime $time); 1078 sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
505 }); 1079 });
506 1080
507=over 4 1081=over 4
508 1082
509=item $timer = new urxvt::timer 1083=item $timer = new urxvt::timer
510 1084
511Create a new timer object in stopped state. 1085Create a new timer object in started state. It is scheduled to fire
1086immediately.
512 1087
513=item $timer = $timer->cb (sub { my ($timer) = @_; ... }) 1088=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
514 1089
515Set the callback to be called when the timer triggers. 1090Set the callback to be called when the timer triggers.
516 1091
519Return the time this watcher will fire next. 1094Return the time this watcher will fire next.
520 1095
521=item $timer = $timer->set ($tstamp) 1096=item $timer = $timer->set ($tstamp)
522 1097
523Set 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.
524 1105
525=item $timer = $timer->start 1106=item $timer = $timer->start
526 1107
527Start the timer. 1108Start the timer.
528 1109
591This variable controls the verbosity level of the perl extension. Higher 1172This variable controls the verbosity level of the perl extension. Higher
592numbers indicate more verbose output. 1173numbers indicate more verbose output.
593 1174
594=over 4 1175=over 4
595 1176
596=item 0 - only fatal messages 1177=item =0 - only fatal messages
597 1178
598=item 3 - script loading and management 1179=item =3 - script loading and management
599 1180
600=item 10 - all events received 1181=item =10 - all events received
601 1182
602=back 1183=back
603 1184
604=head1 AUTHOR 1185=head1 AUTHOR
605 1186

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