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Revision 1.27 by root, Tue Jan 3 23:41:37 2006 UTC vs.
Revision 1.35 by root, Fri Jan 6 01:27:27 2006 UTC

60 60
61=item digital-clock 61=item digital-clock
62 62
63Displays a digital clock using the built-in overlay. 63Displays a digital clock using the built-in overlay.
64 64
65=item mark-urls
66
67Uses per-line filtering (C<on_line_update>) to underline urls.
68
65=item example-refresh-hooks 69=item example-refresh-hooks
66 70
67Displays a very simple digital clock in the upper right corner of the 71Displays a very simple digital clock in the upper right corner of the
68window. Illustrates overwriting the refresh callbacks to create your own 72window. Illustrates overwriting the refresh callbacks to create your own
69overlays or changes. 73overlays or changes.
74
75=item example-filter-input
76
77A not very useful example of filtering all text output to the terminal, by
78underlining all urls that matches a certain regex (i.e. some urls :). It
79is not very useful because urls that are output in multiple steps (e.g.
80when typing them) do not get marked.
70 81
71=back 82=back
72 83
73=head2 General API Considerations 84=head2 General API Considerations
74 85
81When objects are destroyed on the C++ side, the perl object hashes are 92When objects are destroyed on the C++ side, the perl object hashes are
82emptied, so its best to store related objects such as time watchers and 93emptied, so its best to store related objects such as time watchers and
83the like inside the terminal object so they get destroyed as soon as the 94the like inside the terminal object so they get destroyed as soon as the
84terminal is destroyed. 95terminal is destroyed.
85 96
97Argument names also often indicate the type of a parameter. Here are some
98hints on what they mean:
99
100=over 4
101
102=item $text
103
104Rxvt-unicodes special way of encoding text, where one "unicode" character
105always represents one screen cell. See L<row_t> for a discussion of this format.
106
107=item $string
108
109A perl text string, with an emphasis on I<text>. It can store all unicode
110characters and is to be distinguished with text encoded in a specific
111encoding (often locale-specific) and binary data.
112
113=item $octets
114
115Either binary data or - more common - a text string encoded in a
116locale-specific way.
117
118=back
119
86=head2 Hooks 120=head2 Hooks
87 121
88The following subroutines can be declared in loaded scripts, and will be 122The following subroutines can be declared in loaded scripts, and will be
89called whenever the relevant event happens. 123called whenever the relevant event happens.
90 124
171number of lines that will be in the scrollback buffer. 205number of lines that will be in the scrollback buffer.
172 206
173=item on_tty_activity $term *NYI* 207=item on_tty_activity $term *NYI*
174 208
175Called whenever the program(s) running in the urxvt window send output. 209Called whenever the program(s) running in the urxvt window send output.
210
211=item on_osc_seq $term, $string
212
213Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
214operating system command) is processed. Cursor position and other state
215information is up-to-date when this happens. For interoperability, the
216string should start with the extension name and a colon, to distinguish
217it from commands for other extensions, and this might be enforced in the
218future.
219
220Be careful not ever to trust (in a security sense) the data you receive,
221as its source can not easily be controleld (e-mail content, messages from
222other users on the same system etc.).
223
224=item on_add_lines $term, $string
225
226Called whenever text is about to be output, with the text as argument. You
227can filter/change and output the text yourself by returning a true value
228and calling C<< $term->scr_add_lines >> yourself. Please note that this
229might be very slow, however, as your hook is called for B<all> text being
230output.
231
232=item on_line_update $term, $row
233
234Called whenever a line was updated or changed. Can be used to filter
235screen output (e.g. underline urls or other useless stuff). Only lines
236that are being shown will be filtered, and, due to performance reasons,
237not always immediately.
238
239The row number is always the topmost row of the line if the line spans
240multiple rows.
241
242Please note that, if you change the line, then the hook might get called
243later with the already-modified line (e.g. if unrelated parts change), so
244you cannot just toggle rendition bits, but only set them.
176 245
177=item on_refresh_begin $term 246=item on_refresh_begin $term
178 247
179Called just before the screen gets redrawn. Can be used for overlay 248Called just before the screen gets redrawn. Can be used for overlay
180or similar effects by modify terminal contents in refresh_begin, and 249or similar effects by modify terminal contents in refresh_begin, and
353 422
354 $pkg 423 $pkg
355 } 424 }
356} 425}
357 426
427our $retval; # return value for urxvt
428
358# called by the rxvt core 429# called by the rxvt core
359sub invoke { 430sub invoke {
360 local $TERM = shift; 431 local $TERM = shift;
361 my $htype = shift; 432 my $htype = shift;
362 433
363 if ($htype == 0) { # INIT 434 if ($htype == 0) { # INIT
364 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 435 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
365 436
366 for my $ext (split /:/, $TERM->resource ("perl_ext")) { 437 for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) {
367 my @files = grep -f $_, map "$_/$ext", @dirs; 438 my @files = grep -f $_, map "$_/$ext", @dirs;
368 439
369 if (@files) { 440 if (@files) {
370 register_package script_package $files[0]; 441 register_package script_package $files[0];
371 } else { 442 } else {
372 warn "perl extension '$ext' not found in perl library search path\n"; 443 warn "perl extension '$ext' not found in perl library search path\n";
373 } 444 }
374 } 445 }
446 }
375 447
448 $retval = undef;
449
450 if (my $cb = $TERM->{_hook}[$htype]) {
451 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
452 if $verbosity >= 10;
453
454 keys %$cb;
455
456 while (my ($pkg, $cb) = each %$cb) {
457 $retval = $cb->(
458 $TERM->{_pkg}{$pkg} ||= do {
459 my $proxy = bless { }, urxvt::term::proxy::;
460 Scalar::Util::weaken ($proxy->{term} = $TERM);
461 $proxy
462 },
463 @_,
464 ) and last;
465 }
466 }
467
376 } elsif ($htype == 1) { # DESTROY 468 if ($htype == 1) { # DESTROY
469 # remove hooks if unused
377 if (my $hook = $TERM->{_hook}) { 470 if (my $hook = $TERM->{_hook}) {
378 for my $htype (0..$#$hook) { 471 for my $htype (0..$#$hook) {
379 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 472 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
380 or set_should_invoke $htype, 0; 473 or set_should_invoke $htype, 0;
381 } 474 }
382 } 475 }
476
477 # clear package objects
478 %$_ = () for values %{ $TERM->{_pkg} };
479
480 # clear package
481 %$TERM = ();
383 } 482 }
384 483
385 my $cb = $TERM->{_hook}[$htype] 484 $retval
386 or return;
387
388 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
389 if $verbosity >= 10;
390
391 keys %$cb;
392
393 while (my ($pkg, $cb) = each %$cb) {
394 return 1
395 if $cb->(
396 $TERM->{$pkg} ||= do {
397 my $proxy = bless { }, urxvt::term::proxy::;
398 Scalar::Util::weaken ($proxy->{term} = $TERM);
399 $proxy
400 },
401 @_,
402 );
403 }
404
405 0
406} 485}
407 486
408sub urxvt::term::proxy::AUTOLOAD { 487sub urxvt::term::proxy::AUTOLOAD {
409 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 488 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/
410 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 489 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";
448 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 527 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
449 borderLess color cursorBlink cursorUnderline cutchars delete_key 528 borderLess color cursorBlink cursorUnderline cutchars delete_key
450 display_name embed ext_bwidth fade font geometry hold iconName 529 display_name embed ext_bwidth fade font geometry hold iconName
451 imFont imLocale inputMethod insecure int_bwidth intensityStyles 530 imFont imLocale inputMethod insecure int_bwidth intensityStyles
452 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 531 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
453 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext 532 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
454 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 533 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
455 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 534 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
456 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 535 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
457 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 536 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
458 shade term_name title transparent transparent_all tripleclickwords 537 shade term_name title transparent transparent_all tripleclickwords
464 my ($self, $name) = (shift, shift); 543 my ($self, $name) = (shift, shift);
465 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 544 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
466 goto &urxvt::term::_resource; 545 goto &urxvt::term::_resource;
467} 546}
468 547
548=item $rend = $term->rstyle ([$new_rstyle])
549
550Return and optionally change the current rendition. Text that is output by
551the terminal application will use this style.
552
553=item ($row, $col) = $term->screen_cur ([$row, $col])
554
555Return the current coordinates of the text cursor position and optionally
556set it (which is usually bad as applications don't expect that).
557
469=item ($row, $col) = $term->selection_mark ([$row, $col]) 558=item ($row, $col) = $term->selection_mark ([$row, $col])
470 559
471=item ($row, $col) = $term->selection_beg ([$row, $col]) 560=item ($row, $col) = $term->selection_beg ([$row, $col])
472 561
473=item ($row, $col) = $term->selection_end ([$row, $col]) 562=item ($row, $col) = $term->selection_end ([$row, $col])
487#=item $term->overlay ($x, $y, $text) 576#=item $term->overlay ($x, $y, $text)
488# 577#
489#Create a simple multi-line overlay box. See the next method for details. 578#Create a simple multi-line overlay box. See the next method for details.
490# 579#
491#=cut 580#=cut
492 581#
493sub urxvt::term::scr_overlay { 582#sub urxvt::term::scr_overlay {
494die;
495 my ($self, $x, $y, $text) = @_; 583# my ($self, $x, $y, $text) = @_;
496 584#
497 my @lines = split /\n/, $text; 585# my @lines = split /\n/, $text;
498 586#
499 my $w = 0; 587# my $w = 0;
500 for (map $self->strwidth ($_), @lines) { 588# for (map $self->strwidth ($_), @lines) {
501 $w = $_ if $w < $_; 589# $w = $_ if $w < $_;
502 } 590# }
503 591#
504 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 592# $self->scr_overlay_new ($x, $y, $w, scalar @lines);
505 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 593# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
506} 594#}
507 595
508=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 596=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
509 597
510Create a new (empty) overlay at the given position with the given 598Create a new (empty) overlay at the given position with the given
511width/height. C<$rstyle> defines the initial rendition style 599width/height. C<$rstyle> defines the initial rendition style
551 639
552=item $string = $term->locale_decode $octets 640=item $string = $term->locale_decode $octets
553 641
554Convert the given locale-encoded octets into a perl string. 642Convert the given locale-encoded octets into a perl string.
555 643
644=item $term->scr_add_lines ($string)
645
646Write the given text string to the screen, as if output by the application
647running inside the terminal. It may not contain command sequences (escape
648codes), but is free to use line feeds, carriage returns and tabs. The
649string is a normal text string, not in locale-dependent encoding.
650
651Normally its not a good idea to use this function, as programs might be
652confused by changes in cursor position or scrolling. Its useful inside a
653C<on_add_lines> hook, though.
654
556=item $term->tt_write ($octets) 655=item $term->tt_write ($octets)
557 656
558Write the octets given in C<$data> to the tty (i.e. as program input). To 657Write the octets given in C<$data> to the tty (i.e. as program input). To
559pass characters instead of octets, you should convert your strings first 658pass characters instead of octets, you should convert your strings first
560to the locale-specific encoding using C<< $term->locale_encode >>. 659to the locale-specific encoding using C<< $term->locale_encode >>.
561 660
661=item $window_width = $term->width
662
663=item $window_height = $term->height
664
665=item $font_width = $term->fwidth
666
667=item $font_height = $term->fheight
668
669=item $font_ascent = $term->fbase
670
562=item $nrow = $term->nrow 671=item $terminal_rows = $term->nrow
563 672
564=item $ncol = $term->ncol 673=item $terminal_columns = $term->ncol
565 674
566Return the number of rows/columns of the terminal window (i.e. as 675=item $has_focus = $term->focus
567specified by C<-geometry>, excluding any scrollback).
568 676
569=item $nsaved = $term->nsaved 677=item $is_mapped = $term->mapped
570 678
571Returns the number of lines in the scrollback buffer. 679=item $max_scrollback = $term->saveLines
680
681=item $nrow_plus_saveLines = $term->total_rows
682
683=item $lines_in_scrollback = $term->nsaved
684
685Return various integers describing terminal characteristics.
572 686
573=item $view_start = $term->view_start ([$newvalue]) 687=item $view_start = $term->view_start ([$newvalue])
574 688
575Returns the negative row number of the topmost line. Minimum value is 689Returns the negative row number of the topmost line. Minimum value is
576C<0>, which displays the normal terminal contents. Larger values scroll 690C<0>, which displays the normal terminal contents. Larger values scroll
639about the logical line that row C<$row_number> is part of. It supports the 753about the logical line that row C<$row_number> is part of. It supports the
640following methods: 754following methods:
641 755
642=over 4 756=over 4
643 757
644=item $text = $line->t 758=item $text = $line->t ([$new_text])
645 759
646Returns the full text of the line, similar to C<ROW_t> 760Returns or replaces the full text of the line, similar to C<ROW_t>
647 761
648=item $rend = $line->r 762=item $rend = $line->r ([$new_rend])
649 763
650Returns the full rendition array of the line, similar to C<ROW_r> 764Returns or replaces the full rendition array of the line, similar to C<ROW_r>
651 765
652=item $length = $line->l 766=item $length = $line->l
653 767
654Returns the length of the line in cells, similar to C<ROW_l>. 768Returns the length of the line in cells, similar to C<ROW_l>.
655 769
684 798
685 bless { 799 bless {
686 term => $self, 800 term => $self,
687 beg => $beg, 801 beg => $beg,
688 end => $end, 802 end => $end,
803 ncol => $self->ncol,
689 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end), 804 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
690 }, urxvt::line:: 805 }, urxvt::line::
691} 806}
692 807
693sub urxvt::line::t { 808sub urxvt::line::t {
694 my ($self) = @_; 809 my ($self) = @_;
695 810
811 if (@_ > 1)
812 {
813 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
814 for $self->{beg} .. $self->{end};
815 }
816
817 defined wantarray &&
696 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}), 818 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
697 0, $self->{len} 819 0, $self->{len}
698} 820}
699 821
700sub urxvt::line::r { 822sub urxvt::line::r {
701 my ($self) = @_; 823 my ($self) = @_;
702 824
825 if (@_ > 1)
826 {
827 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
828 for $self->{beg} .. $self->{end};
829 }
830
831 if (defined wantarray) {
703 my $rend = [ 832 my $rend = [
704 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end} 833 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
705 ]; 834 ];
706 $#$rend = $self->{len} - 1; 835 $#$rend = $self->{len} - 1;
707 $rend 836 return $rend;
837 }
838
839 ()
708} 840}
709 841
710sub urxvt::line::beg { $_[0]{beg} } 842sub urxvt::line::beg { $_[0]{beg} }
711sub urxvt::line::end { $_[0]{end} } 843sub urxvt::line::end { $_[0]{end} }
712sub urxvt::line::l { $_[0]{len} } 844sub urxvt::line::l { $_[0]{len} }
713 845
714sub urxvt::line::offset_of { 846sub urxvt::line::offset_of {
715 my ($self, $row, $col) = @_; 847 my ($self, $row, $col) = @_;
716 848
717 ($row - $self->{beg}) * $self->{term}->ncol + $col 849 ($row - $self->{beg}) * $self->{ncol} + $col
718} 850}
719 851
720sub urxvt::line::coord_of { 852sub urxvt::line::coord_of {
721 my ($self, $offset) = @_; 853 my ($self, $offset) = @_;
722 854
723 use integer; 855 use integer;
724 856
725 ( 857 (
726 $offset / $self->{term}->ncol + $self->{beg}, 858 $offset / $self->{ncol} + $self->{beg},
727 $offset % $self->{term}->ncol 859 $offset % $self->{ncol}
728 ) 860 )
729} 861}
730 862
731=item ($row, $col) = $line->coord_of ($offset) 863=item ($row, $col) = $line->coord_of ($offset)
732=item $text = $term->special_encode $string 864=item $text = $term->special_encode $string

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