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Revision 1.29 by root, Wed Jan 4 00:12:12 2006 UTC vs.
Revision 1.34 by root, Fri Jan 6 01:16:58 2006 UTC

65=item example-refresh-hooks 65=item example-refresh-hooks
66 66
67Displays a very simple digital clock in the upper right corner of the 67Displays a very simple digital clock in the upper right corner of the
68window. Illustrates overwriting the refresh callbacks to create your own 68window. Illustrates overwriting the refresh callbacks to create your own
69overlays or changes. 69overlays or changes.
70
71=item mark-urls
72
73A not very useful example of filtering all text output to the terminal, by
74underlining all urls that matches a certain regex (i.e. some urls :). It
75is not very useful because urls that are output in multiple steps (e.g.
76when typing them) do not get marked.
70 77
71=back 78=back
72 79
73=head2 General API Considerations 80=head2 General API Considerations
74 81
80 87
81When objects are destroyed on the C++ side, the perl object hashes are 88When 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 89emptied, 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 90the like inside the terminal object so they get destroyed as soon as the
84terminal is destroyed. 91terminal is destroyed.
92
93Argument names also often indicate the type of a parameter. Here are some
94hints on what they mean:
95
96=over 4
97
98=item $text
99
100Rxvt-unicodes special way of encoding text, where one "unicode" character
101always represents one screen cell. See L<row_t> for a discussion of this format.
102
103=item $string
104
105A perl text string, with an emphasis on I<text>. It can store all unicode
106characters and is to be distinguished with text encoded in a specific
107encoding (often locale-specific) and binary data.
108
109=item $octets
110
111Either binary data or - more common - a text string encoded in a
112locale-specific way.
113
114=back
85 115
86=head2 Hooks 116=head2 Hooks
87 117
88The following subroutines can be declared in loaded scripts, and will be 118The following subroutines can be declared in loaded scripts, and will be
89called whenever the relevant event happens. 119called whenever the relevant event happens.
184future. 214future.
185 215
186Be careful not ever to trust (in a security sense) the data you receive, 216Be careful not ever to trust (in a security sense) the data you receive,
187as its source can not easily be controleld (e-mail content, messages from 217as its source can not easily be controleld (e-mail content, messages from
188other users on the same system etc.). 218other users on the same system etc.).
219
220=item on_add_lines $term, $string
221
222Called whenever text is about to be output, with the text as argument. You
223can filter/change and output the text yourself by returning a true value
224and calling C<< $term->scr_add_lines >> yourself. Please note that this
225might be very slow, however, as your hook is called for B<all> text being
226output.
189 227
190=item on_refresh_begin $term 228=item on_refresh_begin $term
191 229
192Called just before the screen gets redrawn. Can be used for overlay 230Called just before the screen gets redrawn. Can be used for overlay
193or similar effects by modify terminal contents in refresh_begin, and 231or similar effects by modify terminal contents in refresh_begin, and
366 404
367 $pkg 405 $pkg
368 } 406 }
369} 407}
370 408
409our $retval; # return value for urxvt
410
371# called by the rxvt core 411# called by the rxvt core
372sub invoke { 412sub invoke {
373 local $TERM = shift; 413 local $TERM = shift;
374 my $htype = shift; 414 my $htype = shift;
375 415
376 if ($htype == 0) { # INIT 416 if ($htype == 0) { # INIT
377 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 417 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
378 418
379 for my $ext (split /:/, $TERM->resource ("perl_ext")) { 419 for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) {
380 my @files = grep -f $_, map "$_/$ext", @dirs; 420 my @files = grep -f $_, map "$_/$ext", @dirs;
381 421
382 if (@files) { 422 if (@files) {
383 register_package script_package $files[0]; 423 register_package script_package $files[0];
384 } else { 424 } else {
385 warn "perl extension '$ext' not found in perl library search path\n"; 425 warn "perl extension '$ext' not found in perl library search path\n";
386 } 426 }
387 } 427 }
428 }
388 429
430 $retval = undef;
431
432 if (my $cb = $TERM->{_hook}[$htype]) {
433 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
434 if $verbosity >= 10;
435
436 keys %$cb;
437
438 while (my ($pkg, $cb) = each %$cb) {
439 $retval = $cb->(
440 $TERM->{_pkg}{$pkg} ||= do {
441 my $proxy = bless { }, urxvt::term::proxy::;
442 Scalar::Util::weaken ($proxy->{term} = $TERM);
443 $proxy
444 },
445 @_,
446 ) and last;
447 }
448 }
449
389 } elsif ($htype == 1) { # DESTROY 450 if ($htype == 1) { # DESTROY
451 # remove hooks if unused
390 if (my $hook = $TERM->{_hook}) { 452 if (my $hook = $TERM->{_hook}) {
391 for my $htype (0..$#$hook) { 453 for my $htype (0..$#$hook) {
392 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 454 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
393 or set_should_invoke $htype, 0; 455 or set_should_invoke $htype, 0;
394 } 456 }
395 } 457 }
458
459 # clear package objects
460 %$_ = () for values %{ $TERM->{_pkg} };
461
462 # clear package
463 %$TERM = ();
396 } 464 }
397 465
398 my $cb = $TERM->{_hook}[$htype] 466 $retval
399 or return;
400
401 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
402 if $verbosity >= 10;
403
404 keys %$cb;
405
406 while (my ($pkg, $cb) = each %$cb) {
407 return 1
408 if $cb->(
409 $TERM->{$pkg} ||= do {
410 my $proxy = bless { }, urxvt::term::proxy::;
411 Scalar::Util::weaken ($proxy->{term} = $TERM);
412 $proxy
413 },
414 @_,
415 );
416 }
417
418 0
419} 467}
420 468
421sub urxvt::term::proxy::AUTOLOAD { 469sub urxvt::term::proxy::AUTOLOAD {
422 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 470 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/
423 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 471 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";
461 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 509 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
462 borderLess color cursorBlink cursorUnderline cutchars delete_key 510 borderLess color cursorBlink cursorUnderline cutchars delete_key
463 display_name embed ext_bwidth fade font geometry hold iconName 511 display_name embed ext_bwidth fade font geometry hold iconName
464 imFont imLocale inputMethod insecure int_bwidth intensityStyles 512 imFont imLocale inputMethod insecure int_bwidth intensityStyles
465 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 513 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
466 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext 514 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
467 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 515 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
468 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 516 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
469 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 517 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
470 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 518 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
471 shade term_name title transparent transparent_all tripleclickwords 519 shade term_name title transparent transparent_all tripleclickwords
477 my ($self, $name) = (shift, shift); 525 my ($self, $name) = (shift, shift);
478 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 526 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
479 goto &urxvt::term::_resource; 527 goto &urxvt::term::_resource;
480} 528}
481 529
530=item $rend = $term->rstyle ([$new_rstyle])
531
532Return and optionally change the current rendition. Text that is output by
533the terminal application will use this style.
534
535=item ($row, $col) = $term->screen_cur ([$row, $col])
536
537Return the current coordinates of the text cursor position and optionally
538set it (which is usually bad as applications don't expect that).
539
482=item ($row, $col) = $term->selection_mark ([$row, $col]) 540=item ($row, $col) = $term->selection_mark ([$row, $col])
483 541
484=item ($row, $col) = $term->selection_beg ([$row, $col]) 542=item ($row, $col) = $term->selection_beg ([$row, $col])
485 543
486=item ($row, $col) = $term->selection_end ([$row, $col]) 544=item ($row, $col) = $term->selection_end ([$row, $col])
500#=item $term->overlay ($x, $y, $text) 558#=item $term->overlay ($x, $y, $text)
501# 559#
502#Create a simple multi-line overlay box. See the next method for details. 560#Create a simple multi-line overlay box. See the next method for details.
503# 561#
504#=cut 562#=cut
505 563#
506sub urxvt::term::scr_overlay { 564#sub urxvt::term::scr_overlay {
507die;
508 my ($self, $x, $y, $text) = @_; 565# my ($self, $x, $y, $text) = @_;
509 566#
510 my @lines = split /\n/, $text; 567# my @lines = split /\n/, $text;
511 568#
512 my $w = 0; 569# my $w = 0;
513 for (map $self->strwidth ($_), @lines) { 570# for (map $self->strwidth ($_), @lines) {
514 $w = $_ if $w < $_; 571# $w = $_ if $w < $_;
515 } 572# }
516 573#
517 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 574# $self->scr_overlay_new ($x, $y, $w, scalar @lines);
518 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 575# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
519} 576#}
520 577
521=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 578=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
522 579
523Create a new (empty) overlay at the given position with the given 580Create a new (empty) overlay at the given position with the given
524width/height. C<$rstyle> defines the initial rendition style 581width/height. C<$rstyle> defines the initial rendition style
564 621
565=item $string = $term->locale_decode $octets 622=item $string = $term->locale_decode $octets
566 623
567Convert the given locale-encoded octets into a perl string. 624Convert the given locale-encoded octets into a perl string.
568 625
626=item $term->scr_add_lines ($string)
627
628Write the given text string to the screen, as if output by the application
629running inside the terminal. It may not contain command sequences (escape
630codes), but is free to use line feeds, carriage returns and tabs. The
631string is a normal text string, not in locale-dependent encoding.
632
633Normally its not a good idea to use this function, as programs might be
634confused by changes in cursor position or scrolling. Its useful inside a
635C<on_add_lines> hook, though.
636
569=item $term->tt_write ($octets) 637=item $term->tt_write ($octets)
570 638
571Write the octets given in C<$data> to the tty (i.e. as program input). To 639Write the octets given in C<$data> to the tty (i.e. as program input). To
572pass characters instead of octets, you should convert your strings first 640pass characters instead of octets, you should convert your strings first
573to the locale-specific encoding using C<< $term->locale_encode >>. 641to the locale-specific encoding using C<< $term->locale_encode >>.
574 642
643=item $window_width = $term->width
644
645=item $window_height = $term->height
646
647=item $font_width = $term->fwidth
648
649=item $font_height = $term->fheight
650
651=item $font_ascent = $term->fbase
652
575=item $nrow = $term->nrow 653=item $terminal_rows = $term->nrow
576 654
577=item $ncol = $term->ncol 655=item $terminal_columns = $term->ncol
578 656
579Return the number of rows/columns of the terminal window (i.e. as 657=item $has_focus = $term->focus
580specified by C<-geometry>, excluding any scrollback).
581 658
582=item $nsaved = $term->nsaved 659=item $is_mapped = $term->mapped
583 660
584Returns the number of lines in the scrollback buffer. 661=item $max_scrollback = $term->saveLines
662
663=item $nrow_plus_saveLines = $term->total_rows
664
665=item $lines_in_scrollback = $term->nsaved
666
667Return various integers describing terminal characteristics.
585 668
586=item $view_start = $term->view_start ([$newvalue]) 669=item $view_start = $term->view_start ([$newvalue])
587 670
588Returns the negative row number of the topmost line. Minimum value is 671Returns the negative row number of the topmost line. Minimum value is
589C<0>, which displays the normal terminal contents. Larger values scroll 672C<0>, which displays the normal terminal contents. Larger values scroll
697 780
698 bless { 781 bless {
699 term => $self, 782 term => $self,
700 beg => $beg, 783 beg => $beg,
701 end => $end, 784 end => $end,
785 ncol => $self->ncol,
702 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end), 786 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
703 }, urxvt::line:: 787 }, urxvt::line::
704} 788}
705 789
706sub urxvt::line::t { 790sub urxvt::line::t {
707 my ($self) = @_; 791 my ($self) = @_;
708 792
793 if (@_ > 1)
794 {
795 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
796 for $self->{beg} .. $self->{end};
797 }
798
799 defined wantarray &&
709 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}), 800 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
710 0, $self->{len} 801 0, $self->{len}
711} 802}
712 803
713sub urxvt::line::r { 804sub urxvt::line::r {
714 my ($self) = @_; 805 my ($self) = @_;
715 806
807 if (@_ > 1)
808 {
809 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
810 for $self->{beg} .. $self->{end};
811 }
812
813 if (defined wantarray) {
716 my $rend = [ 814 my $rend = [
717 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end} 815 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
718 ]; 816 ];
719 $#$rend = $self->{len} - 1; 817 $#$rend = $self->{len} - 1;
720 $rend 818 return $rend;
819 }
820
821 ()
721} 822}
722 823
723sub urxvt::line::beg { $_[0]{beg} } 824sub urxvt::line::beg { $_[0]{beg} }
724sub urxvt::line::end { $_[0]{end} } 825sub urxvt::line::end { $_[0]{end} }
725sub urxvt::line::l { $_[0]{len} } 826sub urxvt::line::l { $_[0]{len} }
726 827
727sub urxvt::line::offset_of { 828sub urxvt::line::offset_of {
728 my ($self, $row, $col) = @_; 829 my ($self, $row, $col) = @_;
729 830
730 ($row - $self->{beg}) * $self->{term}->ncol + $col 831 ($row - $self->{beg}) * $self->{ncol} + $col
731} 832}
732 833
733sub urxvt::line::coord_of { 834sub urxvt::line::coord_of {
734 my ($self, $offset) = @_; 835 my ($self, $offset) = @_;
735 836
736 use integer; 837 use integer;
737 838
738 ( 839 (
739 $offset / $self->{term}->ncol + $self->{beg}, 840 $offset / $self->{ncol} + $self->{beg},
740 $offset % $self->{term}->ncol 841 $offset % $self->{ncol}
741 ) 842 )
742} 843}
743 844
744=item ($row, $col) = $line->coord_of ($offset) 845=item ($row, $col) = $line->coord_of ($offset)
745=item $text = $term->special_encode $string 846=item $text = $term->special_encode $string

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