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Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.39 by root, Fri Jan 6 05:28:55 2006 UTC vs.
Revision 1.47 by root, Sat Jan 7 21:22:02 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
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 65=item mark-urls
66 66
67Uses per-line filtering (C<on_line_update>) to underline urls. 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.
68 74
69=item example-refresh-hooks 75=item example-refresh-hooks
70 76
71Displays 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
72window. Illustrates overwriting the refresh callbacks to create your own 78window. Illustrates overwriting the refresh callbacks to create your own
73overlays or changes. 79overlays 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.
81 80
82=back 81=back
83 82
84=head2 General API Considerations 83=head2 General API Considerations
85 84
117 116
118=back 117=back
119 118
120=head2 Hooks 119=head2 Hooks
121 120
122The following subroutines can be declared in loaded scripts, and will be 121The following subroutines can be declared in extension files, and will be
123called whenever the relevant event happens. 122called whenever the relevant event happens.
124 123
125The first argument passed to them is an object private to each terminal 124The first argument passed to them is an object private to each terminal
126and extension package. You can call all C<urxvt::term> methods on it, but 125and extension package. You can call all C<urxvt::term> methods on it, but
127its not a real C<urxvt::term> object. Instead, the real C<urxvt::term> 126its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
128object that is shared between all packages is stored in the C<term> 127object that is shared between all packages is stored in the C<term>
129member. 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.
130 130
131All 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
132counts 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,
133and 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.
134 134
178click) and is either supposed to return false (normal operation), or 178click) and is either supposed to return false (normal operation), or
179should 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
180processing. 180processing.
181 181
182See the F<selection> example extension. 182See the F<selection> example extension.
183
184=item on_focus_in $term
185
186Called whenever the window gets the keyboard focus, before urxvt does
187focus in processing.
188
189=item on_focus_out $term
190
191Called wheneever the window loses keyboard focus, before urxvt does focus
192out processing.
193 183
194=item on_view_change $term, $offset 184=item on_view_change $term, $offset
195 185
196Called whenever the view offset changes, i..e the user or program 186Called whenever the view offset changes, i..e the user or program
197scrolls. Offset C<0> means display the normal terminal, positive values 187scrolls. Offset C<0> means display the normal terminal, positive values
261 251
262Called whenever the user presses a key combination that has a 252Called whenever the user presses a key combination that has a
263C<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>
264resource in the @@RXVT_NAME@@(1) manpage). 254resource in the @@RXVT_NAME@@(1) manpage).
265 255
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 266=item on_key_press $term, $event, $octets
267 267
268=item on_key_release $term, $event 268=item on_key_release $term, $event
269 269
270=item on_button_press $term, $event 270=item on_button_press $term, $event
271 271
272=item on_button_release $term, $event 272=item on_button_release $term, $event
273 273
274=item on_motion_notify $term, $event 274=item on_motion_notify $term, $event
275
276=item on_map_notify $term, $event
277
278=item on_unmap_notify $term, $event
275 279
276Called whenever the corresponding X event is received for the terminal If 280Called whenever the corresponding X event is received for the terminal If
277the hook returns true, then the even will be ignored by rxvt-unicode. 281the hook returns true, then the even will be ignored by rxvt-unicode.
278 282
279The event is a hash with most values as named by Xlib (see the XEvent 283The event is a hash with most values as named by Xlib (see the XEvent
291 295
292=over 4 296=over 4
293 297
294=item $urxvt::TERM 298=item $urxvt::TERM
295 299
296The current terminal. Whenever a callback/Hook is bein executed, this 300The current terminal. This variable stores the current C<urxvt::term>
297variable stores the current C<urxvt::term> object. 301object, whenever a callback/hook is executing.
298 302
299=back 303=back
300 304
301=head2 Functions in the C<urxvt> Package 305=head2 Functions in the C<urxvt> Package
302 306
326correct place, e.g. on stderr of the connecting urxvtc client. 330correct place, e.g. on stderr of the connecting urxvtc client.
327 331
328=item $time = urxvt::NOW 332=item $time = urxvt::NOW
329 333
330Returns 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.
331 343
332=back 344=back
333 345
334=head2 RENDITION 346=head2 RENDITION
335 347
429 $hook_count[$htype]++ 441 $hook_count[$htype]++
430 or set_should_invoke $htype, 1; 442 or set_should_invoke $htype, 1;
431 } 443 }
432} 444}
433 445
434my $script_pkg = "script0000"; 446my $extension_pkg = "extension0000";
435my %script_pkg; 447my %extension_pkg;
436 448
437# load a single script into its own package, once only 449# load a single script into its own package, once only
438sub script_package($) { 450sub extension_package($) {
439 my ($path) = @_; 451 my ($path) = @_;
440 452
441 $script_pkg{$path} ||= do { 453 $extension_pkg{$path} ||= do {
442 my $pkg = "urxvt::" . ($script_pkg++); 454 my $pkg = "urxvt::" . ($extension_pkg++);
443 455
444 verbose 3, "loading script '$path' into package '$pkg'"; 456 verbose 3, "loading extension '$path' into package '$pkg'";
445 457
446 open my $fh, "<:raw", $path 458 open my $fh, "<:raw", $path
447 or die "$path: $!"; 459 or die "$path: $!";
448 460
449 my $source = "package $pkg; use strict; use utf8;\n" 461 my $source = "package $pkg; use strict; use utf8;\n"
462 . "use base urxvt::term::proxy::;\n"
450 . "#line 1 \"$path\"\n{\n" 463 . "#line 1 \"$path\"\n{\n"
451 . (do { local $/; <$fh> }) 464 . (do { local $/; <$fh> })
452 . "\n};\n1"; 465 . "\n};\n1";
453 466
454 eval $source or die "$path: $@"; 467 eval $source or die "$path: $@";
465 my $htype = shift; 478 my $htype = shift;
466 479
467 if ($htype == 0) { # INIT 480 if ($htype == 0) { # INIT
468 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 481 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
469 482
470 for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) { 483 for my $ext (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
471 my @files = grep -f $_, map "$_/$ext", @dirs; 484 my @files = grep -f $_, map "$_/$ext", @dirs;
472 485
473 if (@files) { 486 if (@files) {
474 register_package script_package $files[0]; 487 register_package extension_package $files[0];
475 } else { 488 } else {
476 warn "perl extension '$ext' not found in perl library search path\n"; 489 warn "perl extension '$ext' not found in perl library search path\n";
477 } 490 }
478 } 491 }
479 } 492 }
485 if $verbosity >= 10; 498 if $verbosity >= 10;
486 499
487 keys %$cb; 500 keys %$cb;
488 501
489 while (my ($pkg, $cb) = each %$cb) { 502 while (my ($pkg, $cb) = each %$cb) {
503 eval {
490 $retval = $cb->( 504 $retval = $cb->(
491 $TERM->{_pkg}{$pkg} ||= do { 505 $TERM->{_pkg}{$pkg} ||= do {
492 my $proxy = bless { }, urxvt::term::proxy::; 506 my $proxy = bless { }, $pkg;
493 Scalar::Util::weaken ($proxy->{term} = $TERM); 507 Scalar::Util::weaken ($proxy->{term} = $TERM);
494 $proxy 508 $proxy
495 }, 509 },
496 @_, 510 @_,
497 ) and last; 511 ) and last;
512 };
513 warn $@ if $@;#d#
498 } 514 }
499 } 515 }
500 516
501 if ($htype == 1) { # DESTROY 517 if ($htype == 1) { # DESTROY
502 # remove hooks if unused 518 # remove hooks if unused
528 } 544 }
529 1 545 1
530 } or die "FATAL: unable to compile method forwarder: $@"; 546 } or die "FATAL: unable to compile method forwarder: $@";
531 547
532 goto &$urxvt::term::proxy::AUTOLOAD; 548 goto &$urxvt::term::proxy::AUTOLOAD;
549}
550
551sub urxvt::destroy_hook::DESTROY {
552 ${$_[0]}->();
553}
554
555sub urxvt::destroy_hook(&) {
556 bless \shift, urxvt::destroy_hook::
533} 557}
534 558
535=head2 The C<urxvt::term> Class 559=head2 The C<urxvt::term> Class
536 560
537=over 4 561=over 4
577=cut 601=cut
578 602
579sub urxvt::term::resource($$;$) { 603sub urxvt::term::resource($$;$) {
580 my ($self, $name) = (shift, shift); 604 my ($self, $name) = (shift, shift);
581 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 605 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
582 goto &urxvt::term::_resource; 606 &urxvt::term::_resource
583} 607}
584 608
585=item $rend = $term->rstyle ([$new_rstyle]) 609=item $rend = $term->rstyle ([$new_rstyle])
586 610
587Return and optionally change the current rendition. Text that is output by 611Return and optionally change the current rendition. Text that is output by
663 687
664If hidden, display the overlay again. 688If hidden, display the overlay again.
665 689
666=back 690=back
667 691
692=item $popup = $term->popup ($event)
693
694Creates a new C<urxvt::popup> object that implements a popup menu. The
695C<$event> I<must> be the event causing the menu to pop up (a button event,
696currently).
697
698=cut
699
700sub urxvt::term::popup {
701 my ($self, $event) = @_;
702
703 $self->grab ($event->{time}, 1)
704 or return;
705
706 my $popup = bless {
707 term => $self,
708 event => $event,
709 }, urxvt::popup::;
710
711 Scalar::Util::weaken $popup->{term};
712
713 $self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
714 Scalar::Util::weaken $self->{_destroy}{$popup};
715
716 $popup
717}
718
668=item $cellwidth = $term->strwidth $string 719=item $cellwidth = $term->strwidth ($string)
669 720
670Returns the number of screen-cells this string would need. Correctly 721Returns the number of screen-cells this string would need. Correctly
671accounts for wide and combining characters. 722accounts for wide and combining characters.
672 723
673=item $octets = $term->locale_encode $string 724=item $octets = $term->locale_encode ($string)
674 725
675Convert the given text string into the corresponding locale encoding. 726Convert the given text string into the corresponding locale encoding.
676 727
677=item $string = $term->locale_decode $octets 728=item $string = $term->locale_decode ($octets)
678 729
679Convert the given locale-encoded octets into a perl string. 730Convert the given locale-encoded octets into a perl string.
680 731
681=item $term->scr_add_lines ($string) 732=item $term->scr_add_lines ($string)
682 733
699 750
700Write the octets given in C<$data> to the tty (i.e. as program input). To 751Write the octets given in C<$data> to the tty (i.e. as program input). To
701pass characters instead of octets, you should convert your strings first 752pass characters instead of octets, you should convert your strings first
702to the locale-specific encoding using C<< $term->locale_encode >>. 753to the locale-specific encoding using C<< $term->locale_encode >>.
703 754
755=item $windowid = $term->parent
756
757Return the window id of the toplevel window.
758
759=item $windowid = $term->vt
760
761Return the window id of the terminal window.
762
704=item $window_width = $term->width 763=item $window_width = $term->width
705 764
706=item $window_height = $term->height 765=item $window_height = $term->height
707 766
708=item $font_width = $term->fwidth 767=item $font_width = $term->fwidth
724=item $nrow_plus_saveLines = $term->total_rows 783=item $nrow_plus_saveLines = $term->total_rows
725 784
726=item $lines_in_scrollback = $term->nsaved 785=item $lines_in_scrollback = $term->nsaved
727 786
728Return various integers describing terminal characteristics. 787Return various integers describing terminal characteristics.
788
789=item $modifiermask = $term->ModLevel3Mask
790
791=item $modifiermask = $term->ModMetaMask
792
793=item $modifiermask = $term->ModNumLockMask
794
795Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
796AltGr), the meta key (often Alt) and the num lock key, if applicable.
729 797
730=item $view_start = $term->view_start ([$newvalue]) 798=item $view_start = $term->view_start ([$newvalue])
731 799
732Returns the negative row number of the topmost line. Minimum value is 800Returns the negative row number of the topmost line. Minimum value is
733C<0>, which displays the normal terminal contents. Larger values scroll 801C<0>, which displays the normal terminal contents. Larger values scroll
914 982
915Converts rxvt-unicodes text reprsentation into a perl string. See 983Converts rxvt-unicodes text reprsentation into a perl string. See
916C<< $term->ROW_t >> for details. 984C<< $term->ROW_t >> for details.
917 985
918=back 986=back
987
988=head2 The C<urxvt::popup> Class
989
990=over 4
991
992=cut
993
994package urxvt::popup;
995
996sub add_item {
997 my ($self, $item) = @_;
998
999 push @{ $self->{item} }, $item;
1000}
1001
1002sub add_button {
1003 my ($self, $text, $cb) = @_;
1004
1005 $self->add_item ({ type => "button", text => "[ $text ]", activate => $cb });
1006}
1007
1008sub show {
1009 my ($self) = @_;
1010
1011 local $urxvt::popup::self = $self;
1012
1013 urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,
1014 "--transient-for" => $self->{term}->parent,
1015 "-pe" => "urxvt-popup")
1016 or die "unable to create popup window\n";
1017}
1018
1019sub DESTROY {
1020 my ($self) = @_;
1021
1022 $self->{term}->ungrab;
1023}
919 1024
920=head2 The C<urxvt::timer> Class 1025=head2 The C<urxvt::timer> Class
921 1026
922This class implements timer watchers/events. Time is represented as a 1027This class implements timer watchers/events. Time is represented as a
923fractional number of seconds since the epoch. Example: 1028fractional number of seconds since the epoch. Example:

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