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Revision 1.22 by root, Tue Jan 3 19:10:54 2006 UTC vs.
Revision 1.48 by root, Sat Jan 7 21:43:17 2006 UTC

17 17
18 @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test 18 @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
19 19
20=head1 DESCRIPTION 20=head1 DESCRIPTION
21 21
22Everytime a terminal object gets created, scripts specified via the 22Everytime a terminal object gets created, extension scripts specified via
23C<perl> resource are loaded and associated with it. 23the C<perl> resource are loaded and associated with it.
24 24
25Scripts are compiled in a 'use strict' and 'use utf8' environment, and 25Scripts are compiled in a 'use strict' and 'use utf8' environment, and
26thus must be encoded as UTF-8. 26thus must be encoded as UTF-8.
27 27
28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where 28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
39 39
40=over 4 40=over 4
41 41
42=item selection 42=item selection
43 43
44Intelligent selection. This etxension tries to be more intelligent when the user 44Intelligent selection. This extension tries to be more intelligent when
45extends selections (double-click). 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>.
46 48
47It also offers the following bindable event: 49It also offers the following bindable event:
48 50
49=over 4 51=over 4
50 52
57=back 59=back
58 60
59=item digital-clock 61=item digital-clock
60 62
61Displays a digital clock using the built-in overlay. 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.
62 74
63=item example-refresh-hooks 75=item example-refresh-hooks
64 76
65Displays 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
66window. Illustrates overwriting the refresh callbacks to create your own 78window. Illustrates overwriting the refresh callbacks to create your own
71=head2 General API Considerations 83=head2 General API Considerations
72 84
73All objects (such as terminals, time watchers etc.) are typical 85All objects (such as terminals, time watchers etc.) are typical
74reference-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
75like. All members starting with an underscore (such as C<_ptr> or 87like. All members starting with an underscore (such as C<_ptr> or
76C<_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
77modified). 89modified).
78 90
79When 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
80emptied, 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
81the 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
82terminal is destroyed. 94terminal is destroyed.
83 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
84=head2 Hooks 119=head2 Hooks
85 120
86The following subroutines can be declared in loaded scripts, and will be called 121The following subroutines can be declared in extension files, and will be
87whenever 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.
88 130
89All 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
90counts 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,
91and 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.
92 134
95=over 4 137=over 4
96 138
97=item on_init $term 139=item on_init $term
98 140
99Called after a new terminal object has been initialized, but before 141Called after a new terminal object has been initialized, but before
100windows 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.
101 146
102=item on_reset $term 147=item on_reset $term
103 148
104Called 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
105control 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
134should extend the selection itelf and return true to suppress the built-in 179should extend the selection itelf and return true to suppress the built-in
135processing. 180processing.
136 181
137See the F<selection> example extension. 182See the F<selection> example extension.
138 183
139=item on_focus_in $term
140
141Called whenever the window gets the keyboard focus, before urxvt does
142focus in processing.
143
144=item on_focus_out $term
145
146Called wheneever the window loses keyboard focus, before urxvt does focus
147out processing.
148
149=item on_view_change $term, $offset 184=item on_view_change $term, $offset
150 185
151Called whenever the view offset changes, i..e the user or program 186Called whenever the view offset changes, i..e the user or program
152scrolls. Offset C<0> means display the normal terminal, positive values 187scrolls. Offset C<0> means display the normal terminal, positive values
153show this many lines of scrollback. 188show this many lines of scrollback.
163number of lines that will be in the scrollback buffer. 198number of lines that will be in the scrollback buffer.
164 199
165=item on_tty_activity $term *NYI* 200=item on_tty_activity $term *NYI*
166 201
167Called 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.
168 238
169=item on_refresh_begin $term 239=item on_refresh_begin $term
170 240
171Called just before the screen gets redrawn. Can be used for overlay 241Called just before the screen gets redrawn. Can be used for overlay
172or similar effects by modify terminal contents in refresh_begin, and 242or similar effects by modify terminal contents in refresh_begin, and
181 251
182Called whenever the user presses a key combination that has a 252Called whenever the user presses a key combination that has a
183C<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>
184resource in the @@RXVT_NAME@@(1) manpage). 254resource in the @@RXVT_NAME@@(1) manpage).
185 255
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
186=back 303=back
187 304
188=head2 Functions in the C<urxvt> Package 305=head2 Functions in the C<urxvt> Package
189 306
190=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.
191 316
192=item urxvt::fatal $errormessage 317=item urxvt::fatal $errormessage
193 318
194Fatally aborts execution with the given error message. Avoid at all 319Fatally aborts execution with the given error message. Avoid at all
195costs! The only time this is acceptable is when the terminal process 320costs! The only time this is acceptable is when the terminal process
205correct place, e.g. on stderr of the connecting urxvtc client. 330correct place, e.g. on stderr of the connecting urxvtc client.
206 331
207=item $time = urxvt::NOW 332=item $time = urxvt::NOW
208 333
209Returns the "current time" (as per the event loop). 334Returns the "current time" (as per the event loop).
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.
210 343
211=back 344=back
212 345
213=head2 RENDITION 346=head2 RENDITION
214 347
264 397
265=cut 398=cut
266 399
267package urxvt; 400package urxvt;
268 401
402use utf8;
269use strict; 403use strict;
404use Scalar::Util ();
405use List::Util ();
270 406
271our $term; 407our $TERM;
272our @HOOKNAME; 408our @HOOKNAME;
273our $LIBDIR; 409our $LIBDIR;
274 410
275BEGIN { 411BEGIN {
276 urxvt->bootstrap; 412 urxvt->bootstrap;
301 my $name = $HOOKNAME[$htype]; 437 my $name = $HOOKNAME[$htype];
302 438
303 my $ref = $pkg->can ("on_" . lc $name) 439 my $ref = $pkg->can ("on_" . lc $name)
304 or next; 440 or next;
305 441
306 $term->{_hook}[$htype]{$ref*1} = $ref; 442 $TERM->{_hook}[$htype]{$pkg} = $ref;
307 $hook_count[$htype]++ 443 $hook_count[$htype]++
308 or set_should_invoke $htype, 1; 444 or set_should_invoke $htype, 1;
309 } 445 }
310} 446}
311 447
312my $script_pkg = "script0000"; 448my $extension_pkg = "extension0000";
313my %script_pkg; 449my %extension_pkg;
314 450
315# load a single script into its own package, once only 451# load a single script into its own package, once only
316sub script_package($) { 452sub extension_package($) {
317 my ($path) = @_; 453 my ($path) = @_;
318 454
319 $script_pkg{$path} ||= do { 455 $extension_pkg{$path} ||= do {
320 my $pkg = "urxvt::" . ($script_pkg++); 456 my $pkg = "urxvt::" . ($extension_pkg++);
321 457
322 verbose 3, "loading script '$path' into package '$pkg'"; 458 verbose 3, "loading extension '$path' into package '$pkg'";
323 459
324 open my $fh, "<:raw", $path 460 open my $fh, "<:raw", $path
325 or die "$path: $!"; 461 or die "$path: $!";
326 462
327 my $source = "package $pkg; use strict; use utf8;\n" 463 my $source = "package $pkg; use strict; use utf8;\n"
464 . "use base urxvt::term::proxy::;\n"
328 . "#line 1 \"$path\"\n{\n" 465 . "#line 1 \"$path\"\n{\n"
329 . (do { local $/; <$fh> }) 466 . (do { local $/; <$fh> })
330 . "\n};\n1"; 467 . "\n};\n1";
331 468
332 eval $source or die "$path: $@"; 469 eval $source or die "$path: $@";
333 470
334 $pkg 471 $pkg
335 } 472 }
336} 473}
337 474
475our $retval; # return value for urxvt
476
338# called by the rxvt core 477# called by the rxvt core
339sub invoke { 478sub invoke {
340 local $term = shift; 479 local $TERM = shift;
341 my $htype = shift; 480 my $htype = shift;
342 481
343 if ($htype == 0) { # INIT 482 if ($htype == 0) { # INIT
344 my @dirs = ((split /:/, $term->resource ("perl_lib")), "$LIBDIR/perl"); 483 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
345 484
346 for my $ext (split /:/, $term->resource ("perl_ext")) { 485 for my $ext (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
347 my @files = grep -f $_, map "$_/$ext", @dirs; 486 my @files = grep -f $_, map "$_/$ext", @dirs;
348 487
349 if (@files) { 488 if (@files) {
350 register_package script_package $files[0]; 489 register_package extension_package $files[0];
351 } else { 490 } else {
352 warn "perl extension '$ext' not found in perl library search path\n"; 491 warn "perl extension '$ext' not found in perl library search path\n";
353 } 492 }
354 } 493 }
494 }
355 495
496 $retval = undef;
497
498 if (my $cb = $TERM->{_hook}[$htype]) {
499 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
500 if $verbosity >= 10;
501
502 keys %$cb;
503
504 while (my ($pkg, $cb) = each %$cb) {
505 eval {
506 $retval = $cb->(
507 $TERM->{_pkg}{$pkg} ||= do {
508 my $proxy = bless { }, $pkg;
509 Scalar::Util::weaken ($proxy->{term} = $TERM);
510 $proxy
511 },
512 @_,
513 ) and last;
514 };
515 warn $@ if $@;#d#
516 }
517 }
518
356 } elsif ($htype == 1) { # DESTROY 519 if ($htype == 1) { # DESTROY
520 # remove hooks if unused
357 if (my $hook = $term->{_hook}) { 521 if (my $hook = $TERM->{_hook}) {
358 for my $htype (0..$#$hook) { 522 for my $htype (0..$#$hook) {
359 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 523 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
360 or set_should_invoke $htype, 0; 524 or set_should_invoke $htype, 0;
361 } 525 }
362 } 526 }
527
528 # clear package objects
529 %$_ = () for values %{ $TERM->{_pkg} };
530
531 # clear package
532 %$TERM = ();
363 } 533 }
364 534
365 my $cb = $term->{_hook}[$htype] 535 $retval
366 or return; 536}
367 537
368 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")" 538sub urxvt::term::proxy::AUTOLOAD {
369 if $verbosity >= 10; 539 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/
540 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";
370 541
371 while (my ($k, $v) = each %$cb) { 542 eval qq{
372 return 1 if $v->($term, @_); 543 sub $urxvt::term::proxy::AUTOLOAD {
373 } 544 my \$proxy = shift;
545 \$proxy->{term}->$1 (\@_)
546 }
547 1
548 } or die "FATAL: unable to compile method forwarder: $@";
374 549
375 0 550 goto &$urxvt::term::proxy::AUTOLOAD;
551}
552
553sub urxvt::destroy_hook::DESTROY {
554 ${$_[0]}->();
555}
556
557sub urxvt::destroy_hook(&) {
558 bless \shift, urxvt::destroy_hook::
376} 559}
377 560
378=head2 The C<urxvt::term> Class 561=head2 The C<urxvt::term> Class
379 562
380=over 4 563=over 4
564
565=item $term->destroy
566
567Destroy the terminal object (close the window, free resources etc.).
381 568
382=item $value = $term->resource ($name[, $newval]) 569=item $value = $term->resource ($name[, $newval])
383 570
384Returns the current resource value associated with a given name and 571Returns the current resource value associated with a given name and
385optionally sets a new value. Setting values is most useful in the C<init> 572optionally sets a new value. Setting values is most useful in the C<init>
403 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 590 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
404 borderLess color cursorBlink cursorUnderline cutchars delete_key 591 borderLess color cursorBlink cursorUnderline cutchars delete_key
405 display_name embed ext_bwidth fade font geometry hold iconName 592 display_name embed ext_bwidth fade font geometry hold iconName
406 imFont imLocale inputMethod insecure int_bwidth intensityStyles 593 imFont imLocale inputMethod insecure int_bwidth intensityStyles
407 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 594 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
408 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext 595 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
409 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 596 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
410 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 597 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
411 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 598 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
412 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 599 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
413 shade term_name title transparent transparent_all tripleclickwords 600 shade term_name title transparent transparent_all tripleclickwords
416=cut 603=cut
417 604
418sub urxvt::term::resource($$;$) { 605sub urxvt::term::resource($$;$) {
419 my ($self, $name) = (shift, shift); 606 my ($self, $name) = (shift, shift);
420 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 607 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
421 goto &urxvt::term::_resource; 608 &urxvt::term::_resource
422} 609}
610
611=item $rend = $term->rstyle ([$new_rstyle])
612
613Return and optionally change the current rendition. Text that is output by
614the terminal application will use this style.
615
616=item ($row, $col) = $term->screen_cur ([$row, $col])
617
618Return the current coordinates of the text cursor position and optionally
619set it (which is usually bad as applications don't expect that).
423 620
424=item ($row, $col) = $term->selection_mark ([$row, $col]) 621=item ($row, $col) = $term->selection_mark ([$row, $col])
425 622
426=item ($row, $col) = $term->selection_beg ([$row, $col]) 623=item ($row, $col) = $term->selection_beg ([$row, $col])
427 624
442#=item $term->overlay ($x, $y, $text) 639#=item $term->overlay ($x, $y, $text)
443# 640#
444#Create a simple multi-line overlay box. See the next method for details. 641#Create a simple multi-line overlay box. See the next method for details.
445# 642#
446#=cut 643#=cut
447 644#
448sub urxvt::term::scr_overlay { 645#sub urxvt::term::scr_overlay {
449die;
450 my ($self, $x, $y, $text) = @_; 646# my ($self, $x, $y, $text) = @_;
451 647#
452 my @lines = split /\n/, $text; 648# my @lines = split /\n/, $text;
453 649#
454 my $w = 0; 650# my $w = 0;
455 for (map $self->strwidth ($_), @lines) { 651# for (map $self->strwidth ($_), @lines) {
456 $w = $_ if $w < $_; 652# $w = $_ if $w < $_;
457 } 653# }
458 654#
459 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 655# $self->scr_overlay_new ($x, $y, $w, scalar @lines);
460 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 656# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
461} 657#}
462 658
463=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 659=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
464 660
465Create a new (empty) overlay at the given position with the given 661Create a new (empty) overlay at the given position with the given
466width/height. C<$rstyle> defines the initial rendition style 662width/height. C<$rstyle> defines the initial rendition style
493 689
494If hidden, display the overlay again. 690If hidden, display the overlay again.
495 691
496=back 692=back
497 693
694=item $popup = $term->popup ($event)
695
696Creates a new C<urxvt::popup> object that implements a popup menu. The
697C<$event> I<must> be the event causing the menu to pop up (a button event,
698currently).
699
700=cut
701
702sub urxvt::term::popup {
703 my ($self, $event) = @_;
704
705 $self->grab ($event->{time}, 1)
706 or return;
707
708 my $popup = bless {
709 term => $self,
710 event => $event,
711 }, urxvt::popup::;
712
713 Scalar::Util::weaken $popup->{term};
714
715 $self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
716 Scalar::Util::weaken $self->{_destroy}{$popup};
717
718 $popup
719}
720
498=item $cellwidth = $term->strwidth $string 721=item $cellwidth = $term->strwidth ($string)
499 722
500Returns the number of screen-cells this string would need. Correctly 723Returns the number of screen-cells this string would need. Correctly
501accounts for wide and combining characters. 724accounts for wide and combining characters.
502 725
503=item $octets = $term->locale_encode $string 726=item $octets = $term->locale_encode ($string)
504 727
505Convert the given text string into the corresponding locale encoding. 728Convert the given text string into the corresponding locale encoding.
506 729
507=item $string = $term->locale_decode $octets 730=item $string = $term->locale_decode ($octets)
508 731
509Convert the given locale-encoded octets into a perl string. 732Convert the given locale-encoded octets into a perl string.
733
734=item $term->scr_add_lines ($string)
735
736Write the given text string to the screen, as if output by the application
737running inside the terminal. It may not contain command sequences (escape
738codes), but is free to use line feeds, carriage returns and tabs. The
739string is a normal text string, not in locale-dependent encoding.
740
741Normally its not a good idea to use this function, as programs might be
742confused by changes in cursor position or scrolling. Its useful inside a
743C<on_add_lines> hook, though.
744
745=item $term->cmd_parse ($octets)
746
747Similar to C<scr_add_lines>, but the argument must be in the
748locale-specific encoding of the terminal and can contain command sequences
749(escape codes) that will be interpreted.
510 750
511=item $term->tt_write ($octets) 751=item $term->tt_write ($octets)
512 752
513Write the octets given in C<$data> to the tty (i.e. as program input). To 753Write the octets given in C<$data> to the tty (i.e. as program input). To
514pass characters instead of octets, you should convert your strings first 754pass characters instead of octets, you should convert your strings first
515to the locale-specific encoding using C<< $term->locale_encode >>. 755to the locale-specific encoding using C<< $term->locale_encode >>.
516 756
757=item $windowid = $term->parent
758
759Return the window id of the toplevel window.
760
761=item $windowid = $term->vt
762
763Return the window id of the terminal window.
764
765=item $window_width = $term->width
766
767=item $window_height = $term->height
768
769=item $font_width = $term->fwidth
770
771=item $font_height = $term->fheight
772
773=item $font_ascent = $term->fbase
774
517=item $nrow = $term->nrow 775=item $terminal_rows = $term->nrow
518 776
519=item $ncol = $term->ncol 777=item $terminal_columns = $term->ncol
520 778
521Return the number of rows/columns of the terminal window (i.e. as 779=item $has_focus = $term->focus
522specified by C<-geometry>, excluding any scrollback).
523 780
524=item $nsaved = $term->nsaved 781=item $is_mapped = $term->mapped
525 782
526Returns the number of lines in the scrollback buffer. 783=item $max_scrollback = $term->saveLines
784
785=item $nrow_plus_saveLines = $term->total_rows
786
787=item $lines_in_scrollback = $term->nsaved
788
789Return various integers describing terminal characteristics.
790
791=item $modifiermask = $term->ModLevel3Mask
792
793=item $modifiermask = $term->ModMetaMask
794
795=item $modifiermask = $term->ModNumLockMask
796
797Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
798AltGr), the meta key (often Alt) and the num lock key, if applicable.
527 799
528=item $view_start = $term->view_start ([$newvalue]) 800=item $view_start = $term->view_start ([$newvalue])
529 801
530Returns the negative row number of the topmost line. Minimum value is 802Returns the negative row number of the topmost line. Minimum value is
531C<0>, which displays the normal terminal contents. Larger values scroll 803C<0>, which displays the normal terminal contents. Larger values scroll
542=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) 814=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
543 815
544Returns the text of the entire row with number C<$row_number>. Row C<0> 816Returns the text of the entire row with number C<$row_number>. Row C<0>
545is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost 817is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost
546terminal line. The scrollback buffer starts at line C<-1> and extends to 818terminal line. The scrollback buffer starts at line C<-1> and extends to
547line C<< -$term->nsaved >>. 819line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line
820is requested.
548 821
549If C<$new_text> is specified, it will replace characters in the current 822If C<$new_text> is specified, it will replace characters in the current
550line, starting at column C<$start_col> (default C<0>), which is useful 823line, starting at column C<$start_col> (default C<0>), which is useful
551to replace only parts of a line. The font index in the rendition will 824to replace only parts of a line. The font index in the rendition will
552automatically be updated. 825automatically be updated.
574 847
575See the section on RENDITION, above. 848See the section on RENDITION, above.
576 849
577=item $length = $term->ROW_l ($row_number[, $new_length]) 850=item $length = $term->ROW_l ($row_number[, $new_length])
578 851
579Returns the number of screen cells that are in use ("the line length"). If 852Returns the number of screen cells that are in use ("the line
580it is C<-1>, then the line is part of a multiple-row logical "line", which 853length"). Unlike the urxvt core, this returns C<< $term->ncol >> if the
581means all characters are in use and it is continued on the next row. 854line is joined with the following one.
582 855
856=item $bool = $term->is_longer ($row_number)
857
858Returns true if the row is part of a multiple-row logical "line" (i.e.
859joined with the following row), which means all characters are in use
860and it is continued on the next row (and possibly a continuation of the
861previous row(s)).
862
863=item $line = $term->line ($row_number)
864
865Create and return a new C<urxvt::line> object that stores information
866about the logical line that row C<$row_number> is part of. It supports the
867following methods:
868
869=over 4
870
871=item $text = $line->t ([$new_text])
872
873Returns or replaces the full text of the line, similar to C<ROW_t>
874
875=item $rend = $line->r ([$new_rend])
876
877Returns or replaces the full rendition array of the line, similar to C<ROW_r>
878
879=item $length = $line->l
880
881Returns the length of the line in cells, similar to C<ROW_l>.
882
883=item $rownum = $line->beg
884
885=item $rownum = $line->end
886
887Return the row number of the first/last row of the line, respectively.
888
889=item $offset = $line->offset_of ($row, $col)
890
891Returns the character offset of the given row|col pair within the logical
892line.
893
894=item ($row, $col) = $line->coord_of ($offset)
895
896Translates a string offset into terminal coordinates again.
897
898=back
899
900=cut
901
902sub urxvt::term::line {
903 my ($self, $row) = @_;
904
905 my $maxrow = $self->nrow - 1;
906
907 my ($beg, $end) = ($row, $row);
908
909 --$beg while $self->ROW_is_longer ($beg - 1);
910 ++$end while $self->ROW_is_longer ($end) && $end < $maxrow;
911
912 bless {
913 term => $self,
914 beg => $beg,
915 end => $end,
916 ncol => $self->ncol,
917 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
918 }, urxvt::line::
919}
920
921sub urxvt::line::t {
922 my ($self) = @_;
923
924 if (@_ > 1)
925 {
926 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
927 for $self->{beg} .. $self->{end};
928 }
929
930 defined wantarray &&
931 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
932 0, $self->{len}
933}
934
935sub urxvt::line::r {
936 my ($self) = @_;
937
938 if (@_ > 1)
939 {
940 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
941 for $self->{beg} .. $self->{end};
942 }
943
944 if (defined wantarray) {
945 my $rend = [
946 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
947 ];
948 $#$rend = $self->{len} - 1;
949 return $rend;
950 }
951
952 ()
953}
954
955sub urxvt::line::beg { $_[0]{beg} }
956sub urxvt::line::end { $_[0]{end} }
957sub urxvt::line::l { $_[0]{len} }
958
959sub urxvt::line::offset_of {
960 my ($self, $row, $col) = @_;
961
962 ($row - $self->{beg}) * $self->{ncol} + $col
963}
964
965sub urxvt::line::coord_of {
966 my ($self, $offset) = @_;
967
968 use integer;
969
970 (
971 $offset / $self->{ncol} + $self->{beg},
972 $offset % $self->{ncol}
973 )
974}
975
976=item ($row, $col) = $line->coord_of ($offset)
583=item $text = $term->special_encode $string 977=item $text = $term->special_encode $string
584 978
585Converts a perl string into the special encoding used by rxvt-unicode, 979Converts a perl string into the special encoding used by rxvt-unicode,
586where one character corresponds to one screen cell. See 980where one character corresponds to one screen cell. See
587C<< $term->ROW_t >> for details. 981C<< $term->ROW_t >> for details.
590 984
591Converts rxvt-unicodes text reprsentation into a perl string. See 985Converts rxvt-unicodes text reprsentation into a perl string. See
592C<< $term->ROW_t >> for details. 986C<< $term->ROW_t >> for details.
593 987
594=back 988=back
989
990=head2 The C<urxvt::popup> Class
991
992=over 4
993
994=cut
995
996package urxvt::popup;
997
998sub add_item {
999 my ($self, $item) = @_;
1000
1001 push @{ $self->{item} }, $item;
1002}
1003
1004sub add_button {
1005 my ($self, $text, $cb) = @_;
1006
1007 $self->add_item ({ type => "button", text => "[ $text ]", activate => $cb,
1008 render => sub { $_[0]{text} },
1009 });
1010}
1011
1012sub add_toggle {
1013 my ($self, $text, $cb, $value) = @_;
1014
1015 $self->add_item ({ type => "button", text => " $text", value => $value,
1016 render => sub { ($_[0]{value} ? "✔" : " ") . substr $_[0]{text}, 1 },
1017 activate => sub { $cb->($_[0]{value} = !$_[0]{value}); },
1018 });
1019}
1020
1021sub show {
1022 my ($self) = @_;
1023
1024 local $urxvt::popup::self = $self;
1025
1026 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,
1027 "--transient-for" => $self->{term}->parent,
1028 "-pe" => "urxvt-popup")
1029 or die "unable to create popup window\n";
1030}
1031
1032sub DESTROY {
1033 my ($self) = @_;
1034
1035 $self->{term}->ungrab;
1036}
595 1037
596=head2 The C<urxvt::timer> Class 1038=head2 The C<urxvt::timer> Class
597 1039
598This class implements timer watchers/events. Time is represented as a 1040This class implements timer watchers/events. Time is represented as a
599fractional number of seconds since the epoch. Example: 1041fractional number of seconds since the epoch. Example:
701This variable controls the verbosity level of the perl extension. Higher 1143This variable controls the verbosity level of the perl extension. Higher
702numbers indicate more verbose output. 1144numbers indicate more verbose output.
703 1145
704=over 4 1146=over 4
705 1147
706=item 0 - only fatal messages 1148=item =0 - only fatal messages
707 1149
708=item 3 - script loading and management 1150=item =3 - script loading and management
709 1151
710=item 10 - all events received 1152=item =10 - all events received
711 1153
712=back 1154=back
713 1155
714=head1 AUTHOR 1156=head1 AUTHOR
715 1157

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