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Revision 1.22 by root, Tue Jan 3 19:10:54 2006 UTC vs.
Revision 1.45 by root, Sat Jan 7 20:23:52 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
265=cut 390=cut
266 391
267package urxvt; 392package urxvt;
268 393
269use strict; 394use strict;
395use Scalar::Util ();
270 396
271our $term; 397our $TERM;
272our @HOOKNAME; 398our @HOOKNAME;
273our $LIBDIR; 399our $LIBDIR;
274 400
275BEGIN { 401BEGIN {
276 urxvt->bootstrap; 402 urxvt->bootstrap;
301 my $name = $HOOKNAME[$htype]; 427 my $name = $HOOKNAME[$htype];
302 428
303 my $ref = $pkg->can ("on_" . lc $name) 429 my $ref = $pkg->can ("on_" . lc $name)
304 or next; 430 or next;
305 431
306 $term->{_hook}[$htype]{$ref*1} = $ref; 432 $TERM->{_hook}[$htype]{$pkg} = $ref;
307 $hook_count[$htype]++ 433 $hook_count[$htype]++
308 or set_should_invoke $htype, 1; 434 or set_should_invoke $htype, 1;
309 } 435 }
310} 436}
311 437
312my $script_pkg = "script0000"; 438my $extension_pkg = "extension0000";
313my %script_pkg; 439my %extension_pkg;
314 440
315# load a single script into its own package, once only 441# load a single script into its own package, once only
316sub script_package($) { 442sub extension_package($) {
317 my ($path) = @_; 443 my ($path) = @_;
318 444
319 $script_pkg{$path} ||= do { 445 $extension_pkg{$path} ||= do {
320 my $pkg = "urxvt::" . ($script_pkg++); 446 my $pkg = "urxvt::" . ($extension_pkg++);
321 447
322 verbose 3, "loading script '$path' into package '$pkg'"; 448 verbose 3, "loading extension '$path' into package '$pkg'";
323 449
324 open my $fh, "<:raw", $path 450 open my $fh, "<:raw", $path
325 or die "$path: $!"; 451 or die "$path: $!";
326 452
327 my $source = "package $pkg; use strict; use utf8;\n" 453 my $source = "package $pkg; use strict; use utf8;\n"
454 . "use base urxvt::term::proxy::;\n"
328 . "#line 1 \"$path\"\n{\n" 455 . "#line 1 \"$path\"\n{\n"
329 . (do { local $/; <$fh> }) 456 . (do { local $/; <$fh> })
330 . "\n};\n1"; 457 . "\n};\n1";
331 458
332 eval $source or die "$path: $@"; 459 eval $source or die "$path: $@";
333 460
334 $pkg 461 $pkg
335 } 462 }
336} 463}
337 464
465our $retval; # return value for urxvt
466
338# called by the rxvt core 467# called by the rxvt core
339sub invoke { 468sub invoke {
340 local $term = shift; 469 local $TERM = shift;
341 my $htype = shift; 470 my $htype = shift;
342 471
343 if ($htype == 0) { # INIT 472 if ($htype == 0) { # INIT
344 my @dirs = ((split /:/, $term->resource ("perl_lib")), "$LIBDIR/perl"); 473 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
345 474
346 for my $ext (split /:/, $term->resource ("perl_ext")) { 475 for my $ext (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
347 my @files = grep -f $_, map "$_/$ext", @dirs; 476 my @files = grep -f $_, map "$_/$ext", @dirs;
348 477
349 if (@files) { 478 if (@files) {
350 register_package script_package $files[0]; 479 register_package extension_package $files[0];
351 } else { 480 } else {
352 warn "perl extension '$ext' not found in perl library search path\n"; 481 warn "perl extension '$ext' not found in perl library search path\n";
353 } 482 }
354 } 483 }
484 }
355 485
486 $retval = undef;
487
488 if (my $cb = $TERM->{_hook}[$htype]) {
489 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
490 if $verbosity >= 10;
491
492 keys %$cb;
493
494 while (my ($pkg, $cb) = each %$cb) {
495 eval {
496 $retval = $cb->(
497 $TERM->{_pkg}{$pkg} ||= do {
498 my $proxy = bless { }, $pkg;
499 Scalar::Util::weaken ($proxy->{term} = $TERM);
500 $proxy
501 },
502 @_,
503 ) and last;
504 };
505 warn $@ if $@;#d#
506 }
507 }
508
356 } elsif ($htype == 1) { # DESTROY 509 if ($htype == 1) { # DESTROY
510 # remove hooks if unused
357 if (my $hook = $term->{_hook}) { 511 if (my $hook = $TERM->{_hook}) {
358 for my $htype (0..$#$hook) { 512 for my $htype (0..$#$hook) {
359 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 513 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
360 or set_should_invoke $htype, 0; 514 or set_should_invoke $htype, 0;
361 } 515 }
362 } 516 }
517
518 # clear package objects
519 %$_ = () for values %{ $TERM->{_pkg} };
520
521 # clear package
522 %$TERM = ();
363 } 523 }
364 524
365 my $cb = $term->{_hook}[$htype] 525 $retval
366 or return; 526}
367 527
368 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")" 528sub urxvt::term::proxy::AUTOLOAD {
369 if $verbosity >= 10; 529 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/
530 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";
370 531
371 while (my ($k, $v) = each %$cb) { 532 eval qq{
372 return 1 if $v->($term, @_); 533 sub $urxvt::term::proxy::AUTOLOAD {
373 } 534 my \$proxy = shift;
535 \$proxy->{term}->$1 (\@_)
536 }
537 1
538 } or die "FATAL: unable to compile method forwarder: $@";
374 539
375 0 540 goto &$urxvt::term::proxy::AUTOLOAD;
541}
542
543sub urxvt::destroy_hook::DESTROY {
544 ${$_[0]}->();
545}
546
547sub urxvt::destroy_hook(&) {
548 bless \shift, urxvt::destroy_hook::
376} 549}
377 550
378=head2 The C<urxvt::term> Class 551=head2 The C<urxvt::term> Class
379 552
380=over 4 553=over 4
554
555=item $term->destroy
556
557Destroy the terminal object (close the window, free resources etc.).
381 558
382=item $value = $term->resource ($name[, $newval]) 559=item $value = $term->resource ($name[, $newval])
383 560
384Returns the current resource value associated with a given name and 561Returns the current resource value associated with a given name and
385optionally sets a new value. Setting values is most useful in the C<init> 562optionally sets a new value. Setting values is most useful in the C<init>
403 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 580 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
404 borderLess color cursorBlink cursorUnderline cutchars delete_key 581 borderLess color cursorBlink cursorUnderline cutchars delete_key
405 display_name embed ext_bwidth fade font geometry hold iconName 582 display_name embed ext_bwidth fade font geometry hold iconName
406 imFont imLocale inputMethod insecure int_bwidth intensityStyles 583 imFont imLocale inputMethod insecure int_bwidth intensityStyles
407 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 584 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
408 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext 585 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
409 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 586 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
410 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 587 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
411 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 588 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
412 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 589 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
413 shade term_name title transparent transparent_all tripleclickwords 590 shade term_name title transparent transparent_all tripleclickwords
416=cut 593=cut
417 594
418sub urxvt::term::resource($$;$) { 595sub urxvt::term::resource($$;$) {
419 my ($self, $name) = (shift, shift); 596 my ($self, $name) = (shift, shift);
420 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 597 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
421 goto &urxvt::term::_resource; 598 &urxvt::term::_resource
422} 599}
600
601=item $rend = $term->rstyle ([$new_rstyle])
602
603Return and optionally change the current rendition. Text that is output by
604the terminal application will use this style.
605
606=item ($row, $col) = $term->screen_cur ([$row, $col])
607
608Return the current coordinates of the text cursor position and optionally
609set it (which is usually bad as applications don't expect that).
423 610
424=item ($row, $col) = $term->selection_mark ([$row, $col]) 611=item ($row, $col) = $term->selection_mark ([$row, $col])
425 612
426=item ($row, $col) = $term->selection_beg ([$row, $col]) 613=item ($row, $col) = $term->selection_beg ([$row, $col])
427 614
442#=item $term->overlay ($x, $y, $text) 629#=item $term->overlay ($x, $y, $text)
443# 630#
444#Create a simple multi-line overlay box. See the next method for details. 631#Create a simple multi-line overlay box. See the next method for details.
445# 632#
446#=cut 633#=cut
447 634#
448sub urxvt::term::scr_overlay { 635#sub urxvt::term::scr_overlay {
449die;
450 my ($self, $x, $y, $text) = @_; 636# my ($self, $x, $y, $text) = @_;
451 637#
452 my @lines = split /\n/, $text; 638# my @lines = split /\n/, $text;
453 639#
454 my $w = 0; 640# my $w = 0;
455 for (map $self->strwidth ($_), @lines) { 641# for (map $self->strwidth ($_), @lines) {
456 $w = $_ if $w < $_; 642# $w = $_ if $w < $_;
457 } 643# }
458 644#
459 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 645# $self->scr_overlay_new ($x, $y, $w, scalar @lines);
460 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 646# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
461} 647#}
462 648
463=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 649=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
464 650
465Create a new (empty) overlay at the given position with the given 651Create a new (empty) overlay at the given position with the given
466width/height. C<$rstyle> defines the initial rendition style 652width/height. C<$rstyle> defines the initial rendition style
493 679
494If hidden, display the overlay again. 680If hidden, display the overlay again.
495 681
496=back 682=back
497 683
684=item $popup = $term->popup ($event)
685
686Creates a new C<urxvt::popup> object that implements a popup menu. The
687C<$event> I<must> be the event causing the menu to pop up (a button event,
688currently).
689
690=cut
691
692sub urxvt::term::popup {
693 my ($self, $event) = @_;
694
695 $self->grab ($event->{time}, 1)
696 or return;
697
698 my $popup = bless {
699 term => $self,
700 event => $event,
701 }, urxvt::popup::;
702
703 Scalar::Util::weaken $popup->{term};
704
705 $self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
706 Scalar::Util::weaken $self->{_destroy}{$popup};
707
708 $popup
709}
710
498=item $cellwidth = $term->strwidth $string 711=item $cellwidth = $term->strwidth ($string)
499 712
500Returns the number of screen-cells this string would need. Correctly 713Returns the number of screen-cells this string would need. Correctly
501accounts for wide and combining characters. 714accounts for wide and combining characters.
502 715
503=item $octets = $term->locale_encode $string 716=item $octets = $term->locale_encode ($string)
504 717
505Convert the given text string into the corresponding locale encoding. 718Convert the given text string into the corresponding locale encoding.
506 719
507=item $string = $term->locale_decode $octets 720=item $string = $term->locale_decode ($octets)
508 721
509Convert the given locale-encoded octets into a perl string. 722Convert the given locale-encoded octets into a perl string.
723
724=item $term->scr_add_lines ($string)
725
726Write the given text string to the screen, as if output by the application
727running inside the terminal. It may not contain command sequences (escape
728codes), but is free to use line feeds, carriage returns and tabs. The
729string is a normal text string, not in locale-dependent encoding.
730
731Normally its not a good idea to use this function, as programs might be
732confused by changes in cursor position or scrolling. Its useful inside a
733C<on_add_lines> hook, though.
734
735=item $term->cmd_parse ($octets)
736
737Similar to C<scr_add_lines>, but the argument must be in the
738locale-specific encoding of the terminal and can contain command sequences
739(escape codes) that will be interpreted.
510 740
511=item $term->tt_write ($octets) 741=item $term->tt_write ($octets)
512 742
513Write the octets given in C<$data> to the tty (i.e. as program input). To 743Write the octets given in C<$data> to the tty (i.e. as program input). To
514pass characters instead of octets, you should convert your strings first 744pass characters instead of octets, you should convert your strings first
515to the locale-specific encoding using C<< $term->locale_encode >>. 745to the locale-specific encoding using C<< $term->locale_encode >>.
516 746
747=item $windowid = $term->parent
748
749Return the window id of the toplevel window.
750
751=item $windowid = $term->vt
752
753Return the window id of the terminal window.
754
755=item $window_width = $term->width
756
757=item $window_height = $term->height
758
759=item $font_width = $term->fwidth
760
761=item $font_height = $term->fheight
762
763=item $font_ascent = $term->fbase
764
517=item $nrow = $term->nrow 765=item $terminal_rows = $term->nrow
518 766
519=item $ncol = $term->ncol 767=item $terminal_columns = $term->ncol
520 768
521Return the number of rows/columns of the terminal window (i.e. as 769=item $has_focus = $term->focus
522specified by C<-geometry>, excluding any scrollback).
523 770
524=item $nsaved = $term->nsaved 771=item $is_mapped = $term->mapped
525 772
526Returns the number of lines in the scrollback buffer. 773=item $max_scrollback = $term->saveLines
774
775=item $nrow_plus_saveLines = $term->total_rows
776
777=item $lines_in_scrollback = $term->nsaved
778
779Return various integers describing terminal characteristics.
527 780
528=item $view_start = $term->view_start ([$newvalue]) 781=item $view_start = $term->view_start ([$newvalue])
529 782
530Returns the negative row number of the topmost line. Minimum value is 783Returns the negative row number of the topmost line. Minimum value is
531C<0>, which displays the normal terminal contents. Larger values scroll 784C<0>, which displays the normal terminal contents. Larger values scroll
542=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) 795=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
543 796
544Returns the text of the entire row with number C<$row_number>. Row C<0> 797Returns 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 798is 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 799terminal line. The scrollback buffer starts at line C<-1> and extends to
547line C<< -$term->nsaved >>. 800line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line
801is requested.
548 802
549If C<$new_text> is specified, it will replace characters in the current 803If C<$new_text> is specified, it will replace characters in the current
550line, starting at column C<$start_col> (default C<0>), which is useful 804line, starting at column C<$start_col> (default C<0>), which is useful
551to replace only parts of a line. The font index in the rendition will 805to replace only parts of a line. The font index in the rendition will
552automatically be updated. 806automatically be updated.
574 828
575See the section on RENDITION, above. 829See the section on RENDITION, above.
576 830
577=item $length = $term->ROW_l ($row_number[, $new_length]) 831=item $length = $term->ROW_l ($row_number[, $new_length])
578 832
579Returns the number of screen cells that are in use ("the line length"). If 833Returns 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 834length"). 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. 835line is joined with the following one.
582 836
837=item $bool = $term->is_longer ($row_number)
838
839Returns true if the row is part of a multiple-row logical "line" (i.e.
840joined with the following row), which means all characters are in use
841and it is continued on the next row (and possibly a continuation of the
842previous row(s)).
843
844=item $line = $term->line ($row_number)
845
846Create and return a new C<urxvt::line> object that stores information
847about the logical line that row C<$row_number> is part of. It supports the
848following methods:
849
850=over 4
851
852=item $text = $line->t ([$new_text])
853
854Returns or replaces the full text of the line, similar to C<ROW_t>
855
856=item $rend = $line->r ([$new_rend])
857
858Returns or replaces the full rendition array of the line, similar to C<ROW_r>
859
860=item $length = $line->l
861
862Returns the length of the line in cells, similar to C<ROW_l>.
863
864=item $rownum = $line->beg
865
866=item $rownum = $line->end
867
868Return the row number of the first/last row of the line, respectively.
869
870=item $offset = $line->offset_of ($row, $col)
871
872Returns the character offset of the given row|col pair within the logical
873line.
874
875=item ($row, $col) = $line->coord_of ($offset)
876
877Translates a string offset into terminal coordinates again.
878
879=back
880
881=cut
882
883sub urxvt::term::line {
884 my ($self, $row) = @_;
885
886 my $maxrow = $self->nrow - 1;
887
888 my ($beg, $end) = ($row, $row);
889
890 --$beg while $self->ROW_is_longer ($beg - 1);
891 ++$end while $self->ROW_is_longer ($end) && $end < $maxrow;
892
893 bless {
894 term => $self,
895 beg => $beg,
896 end => $end,
897 ncol => $self->ncol,
898 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
899 }, urxvt::line::
900}
901
902sub urxvt::line::t {
903 my ($self) = @_;
904
905 if (@_ > 1)
906 {
907 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
908 for $self->{beg} .. $self->{end};
909 }
910
911 defined wantarray &&
912 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
913 0, $self->{len}
914}
915
916sub urxvt::line::r {
917 my ($self) = @_;
918
919 if (@_ > 1)
920 {
921 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
922 for $self->{beg} .. $self->{end};
923 }
924
925 if (defined wantarray) {
926 my $rend = [
927 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
928 ];
929 $#$rend = $self->{len} - 1;
930 return $rend;
931 }
932
933 ()
934}
935
936sub urxvt::line::beg { $_[0]{beg} }
937sub urxvt::line::end { $_[0]{end} }
938sub urxvt::line::l { $_[0]{len} }
939
940sub urxvt::line::offset_of {
941 my ($self, $row, $col) = @_;
942
943 ($row - $self->{beg}) * $self->{ncol} + $col
944}
945
946sub urxvt::line::coord_of {
947 my ($self, $offset) = @_;
948
949 use integer;
950
951 (
952 $offset / $self->{ncol} + $self->{beg},
953 $offset % $self->{ncol}
954 )
955}
956
957=item ($row, $col) = $line->coord_of ($offset)
583=item $text = $term->special_encode $string 958=item $text = $term->special_encode $string
584 959
585Converts a perl string into the special encoding used by rxvt-unicode, 960Converts a perl string into the special encoding used by rxvt-unicode,
586where one character corresponds to one screen cell. See 961where one character corresponds to one screen cell. See
587C<< $term->ROW_t >> for details. 962C<< $term->ROW_t >> for details.
590 965
591Converts rxvt-unicodes text reprsentation into a perl string. See 966Converts rxvt-unicodes text reprsentation into a perl string. See
592C<< $term->ROW_t >> for details. 967C<< $term->ROW_t >> for details.
593 968
594=back 969=back
970
971=head2 The C<urxvt::popup> Class
972
973=over 4
974
975=cut
976
977package urxvt::popup;
978
979sub add_item {
980 my ($self, $item) = @_;
981
982 push @{ $self->{item} }, $item;
983}
984
985sub add_button {
986 my ($self, $text, $cb) = @_;
987
988 $self->add_item ({ type => "button", text => "[ $text ]", activate => $cb });
989}
990
991sub show {
992 my ($self) = @_;
993
994 local $urxvt::popup::self = $self;
995
996 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,
997 "--transient-for" => $self->{term}->parent,
998 "-pe" => "urxvt_popup")
999 or die "unable to create popup window\n";
1000}
1001
1002sub DESTROY {
1003 my ($self) = @_;
1004
1005 $self->{term}->ungrab;
1006}
595 1007
596=head2 The C<urxvt::timer> Class 1008=head2 The C<urxvt::timer> Class
597 1009
598This class implements timer watchers/events. Time is represented as a 1010This class implements timer watchers/events. Time is represented as a
599fractional number of seconds since the epoch. Example: 1011fractional number of seconds since the epoch. Example:
701This variable controls the verbosity level of the perl extension. Higher 1113This variable controls the verbosity level of the perl extension. Higher
702numbers indicate more verbose output. 1114numbers indicate more verbose output.
703 1115
704=over 4 1116=over 4
705 1117
706=item 0 - only fatal messages 1118=item =0 - only fatal messages
707 1119
708=item 3 - script loading and management 1120=item =3 - script loading and management
709 1121
710=item 10 - all events received 1122=item =10 - all events received
711 1123
712=back 1124=back
713 1125
714=head1 AUTHOR 1126=head1 AUTHOR
715 1127

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