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Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.108 by root, Thu Jan 19 09:47:15 2006 UTC vs.
Revision 1.117 by ayin, Fri Jan 20 18:02:43 2006 UTC

34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. 34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35 35
36You can activate them like this: 36You can activate them like this:
37 37
38 @@RXVT_NAME@@ -pe <extensionname> 38 @@RXVT_NAME@@ -pe <extensionname>
39
40Or by adding them to the resource for extensions loaded by default:
41
42 URxvt.perl-ext-common: default,automove-background,selection-autotransform
39 43
40=over 4 44=over 4
41 45
42=item selection (enabled by default) 46=item selection (enabled by default)
43 47
87 91
88=item selection-popup (enabled by default) 92=item selection-popup (enabled by default)
89 93
90Binds a popup menu to Ctrl-Button3 that lets you convert the selection 94Binds a popup menu to Ctrl-Button3 that lets you convert the selection
91text into various other formats/action (such as uri unescaping, perl 95text into various other formats/action (such as uri unescaping, perl
92evalution, web-browser starting etc.), depending on content. 96evaluation, web-browser starting etc.), depending on content.
93 97
94Other extensions can extend this popup menu by pushing a code reference onto 98Other extensions can extend this popup menu by pushing a code reference
95C<@urxvt::ext::selection_popup::hook>, that is called whenever the popup is displayed. 99onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the
100popup is displayed.
96 101
97It's sole argument is the popup menu, which can be modified. The selection 102It's sole argument is the popup menu, which can be modified. The selection
98is in C<$_>, which can be used to decide wether to add something or not. 103is in C<$_>, which can be used to decide wether to add something or not.
99It should either return nothing or a string and a code reference. The 104It should either return nothing or a string and a code reference. The
100string will be used as button text and the code reference will be called 105string will be used as button text and the code reference will be called
102 107
103The following will add an entry C<a to b> that transforms all C<a>s in 108The following will add an entry C<a to b> that transforms all C<a>s in
104the selection to C<b>s, but only if the selection currently contains any 109the selection to C<b>s, but only if the selection currently contains any
105C<a>s: 110C<a>s:
106 111
107 push urxvt::ext::selection_popup::hook, sub { 112 push @{ $self->{term}{selection_popup_hook} }, sub {
108 /a/ ? ("a to be" => sub { s/a/b/g } 113 /a/ ? ("a to be" => sub { s/a/b/g }
109 : () 114 : ()
110 }; 115 };
111 116
112=item searchable-scrollback<hotkey> (enabled by default) 117=item searchable-scrollback<hotkey> (enabled by default)
157 162
158The first line tells the selection code to treat the unchanging part of 163The first line tells the selection code to treat the unchanging part of
159every error message as a selection pattern, and the second line transforms 164every error message as a selection pattern, and the second line transforms
160the message into vi commands to load the file. 165the message into vi commands to load the file.
161 166
167=item tabbed
168
169This transforms the terminal into a tabbar with additional terminals, that
170is, it implements what is commonly refered to as "tabbed terminal". The topmost line
171displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
172button per tab.
173
174Clicking a button will activate that tab. Pressing B<Shift-Left> and
175B<Shift-Right> will switch to the tab left or right of the current one,
176while B<Shift-Down> creates a new tab.
177
162=item mark-urls 178=item mark-urls
163 179
164Uses per-line display filtering (C<on_line_update>) to underline urls and 180Uses per-line display filtering (C<on_line_update>) to underline urls and
165make them clickable. When middle-clicked, the program specified in the 181make them clickable. When middle-clicked, the program specified in the
166resource C<urlLauncher> (default C<x-www-browser>) will be started with 182resource C<urlLauncher> (default C<x-www-browser>) will be started with
298called whenever the relevant event happens. 314called whenever the relevant event happens.
299 315
300The first argument passed to them is an extension oject as described in 316The first argument passed to them is an extension oject as described in
301the in the C<Extension Objects> section. 317the in the C<Extension Objects> section.
302 318
303B<All> of these hooks must return a boolean value. If it is true, then the 319B<All> of these hooks must return a boolean value. If any of the called
304event counts as being I<consumed>, and the invocation of other hooks is 320hooks returns true, then the event counts as being I<consumed>, and the
305skipped, and the relevant action might not be carried out by the C++ code. 321relevant action might not be carried out by the C++ code.
306 322
307I<< When in doubt, return a false value (preferably C<()>). >> 323I<< When in doubt, return a false value (preferably C<()>). >>
308 324
309=over 4 325=over 4
310 326
311=item on_init $term 327=item on_init $term
312 328
313Called after a new terminal object has been initialized, but before 329Called after a new terminal object has been initialized, but before
314windows are created or the command gets run. Most methods are unsafe to 330windows are created or the command gets run. Most methods are unsafe to
315call or deliver senseless data, as terminal size and other characteristics 331call or deliver senseless data, as terminal size and other characteristics
316have not yet been determined. You can safely query and change resources, 332have not yet been determined. You can safely query and change resources
317though. 333and options, though. For many purposes the C<on_start> hook is a better
334place.
335
336=item on_start $term
337
338Called at the very end of initialisation of a new terminal, just before
339trying to map (display) the toplevel and returning to the mainloop.
340
341=item on_destroy $term
342
343Called whenever something tries to destroy terminal, before doing anything
344yet. If this hook returns true, then destruction is skipped, but this is
345rarely a good idea.
318 346
319=item on_reset $term 347=item on_reset $term
320 348
321Called after the screen is "reset" for any reason, such as resizing or 349Called after the screen is "reset" for any reason, such as resizing or
322control sequences. Here is where you can react on changes to size-related 350control sequences. Here is where you can react on changes to size-related
323variables. 351variables.
324
325=item on_start $term
326
327Called at the very end of initialisation of a new terminal, just before
328returning to the mainloop.
329 352
330=item on_child_start $term, $pid 353=item on_child_start $term, $pid
331 354
332Called just after the child process has been C<fork>ed. 355Called just after the child process has been C<fork>ed.
333 356
479C<on_key_press> additionally receives the string rxvt-unicode would 502C<on_key_press> additionally receives the string rxvt-unicode would
480output, if any, in locale-specific encoding. 503output, if any, in locale-specific encoding.
481 504
482subwindow. 505subwindow.
483 506
507=item on_client_message $term, $event
508
509=item on_wm_protocols $term, $event
510
511=item on_wm_delete_window $term, $event
512
513Called when various types of ClientMessage events are received (all with
514format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
515
484=back 516=back
485 517
486=cut 518=cut
487 519
488package urxvt; 520package urxvt;
493use Scalar::Util (); 525use Scalar::Util ();
494use List::Util (); 526use List::Util ();
495 527
496our $VERSION = 1; 528our $VERSION = 1;
497our $TERM; 529our $TERM;
530our @TERM_INIT;
531our @TERM_EXT;
498our @HOOKNAME; 532our @HOOKNAME;
499our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 533our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
500our %OPTION; 534our %OPTION;
501 535
502our $LIBDIR; 536our $LIBDIR;
523 557
524=item $urxvt::TERM 558=item $urxvt::TERM
525 559
526The current terminal. This variable stores the current C<urxvt::term> 560The current terminal. This variable stores the current C<urxvt::term>
527object, whenever a callback/hook is executing. 561object, whenever a callback/hook is executing.
562
563=item @urxvt::TERM_INIT
564
565All coderefs in this array will be called as methods of the next newly
566created C<urxvt::term> object (during the C<on_init> phase). The array
567gets cleared before the codereferences that were in it are being executed,
568so coderefs can push themselves onto it again if they so desire.
569
570This complements to the perl-eval commandline option, but gets executed
571first.
572
573=item @urxvt::TERM_EXT
574
575Works similar to C<@TERM_INIT>, but contains perl package/class names, which
576get registered as normal extensions after calling the hooks in C<@TERM_INIT>
577but before other extensions. Gets cleared just like C<@TERM_INIT>.
528 578
529=back 579=back
530 580
531=head2 Functions in the C<urxvt> Package 581=head2 Functions in the C<urxvt> Package
532 582
654 704
655# load a single script into its own package, once only 705# load a single script into its own package, once only
656sub extension_package($) { 706sub extension_package($) {
657 my ($path) = @_; 707 my ($path) = @_;
658 708
659 no strict 'refs';
660
661 $extension_pkg{$path} ||= do { 709 $extension_pkg{$path} ||= do {
662 $path =~ /([^\/\\]+)$/; 710 $path =~ /([^\/\\]+)$/;
663 my $pkg = $1; 711 my $pkg = $1;
664 $pkg =~ s/[^[:word:]]/_/g; 712 $pkg =~ s/[^[:word:]]/_/g;
665 $pkg = "urxvt::ext::$pkg"; 713 $pkg = "urxvt::ext::$pkg";
667 verbose 3, "loading extension '$path' into package '$pkg'"; 715 verbose 3, "loading extension '$path' into package '$pkg'";
668 716
669 open my $fh, "<:raw", $path 717 open my $fh, "<:raw", $path
670 or die "$path: $!"; 718 or die "$path: $!";
671 719
672 @{"$pkg\::ISA"} = urxvt::term::extension::;
673
674 my $source = 720 my $source =
675 "package $pkg; use strict; use utf8;\n" 721 "package $pkg; use strict; use utf8;\n"
676 . "#line 1 \"$path\"\n{\n" 722 . "#line 1 \"$path\"\n{\n"
677 . (do { local $/; <$fh> }) 723 . (do { local $/; <$fh> })
678 . "\n};\n1"; 724 . "\n};\n1";
694 if ($htype == 0) { # INIT 740 if ($htype == 0) { # INIT
695 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 741 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
696 742
697 my %ext_arg; 743 my %ext_arg;
698 744
745 {
746 my @init = @TERM_INIT;
747 @TERM_INIT = ();
748 $_->($TERM) for @init;
749 my @pkg = @TERM_EXT;
750 @TERM_EXT = ();
751 $TERM->register_package ($_) for @pkg;
752 }
753
699 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 754 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
700 if ($_ eq "default") { 755 if ($_ eq "default") {
701 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 756 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
702 } elsif (/^-(.*)$/) { 757 } elsif (/^-(.*)$/) {
703 delete $ext_arg{$1}; 758 delete $ext_arg{$1};
704 } elsif (/^([^<]+)<(.*)>$/) { 759 } elsif (/^([^<]+)<(.*)>$/) {
729 if $verbosity >= 10; 784 if $verbosity >= 10;
730 785
731 keys %$cb; 786 keys %$cb;
732 787
733 while (my ($pkg, $cb) = each %$cb) { 788 while (my ($pkg, $cb) = each %$cb) {
734 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 789 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
735 and last; 790 $retval ||= $retval_;
736 791
737 if ($@) { 792 if ($@) {
738 $TERM->ungrab; # better to lose the grab than the session 793 $TERM->ungrab; # better to lose the grab than the session
739 warn $@; 794 warn $@;
740 } 795 }
898 953
899# find on_xxx subs in the package and register them 954# find on_xxx subs in the package and register them
900# as hooks 955# as hooks
901sub register_package { 956sub register_package {
902 my ($self, $pkg, $argv) = @_; 957 my ($self, $pkg, $argv) = @_;
958
959 no strict 'refs';
960
961 urxvt::verbose 6, "register package $pkg to $self";
962
963 @{"$pkg\::ISA"} = urxvt::term::extension::;
903 964
904 my $proxy = bless { 965 my $proxy = bless {
905 _pkg => $pkg, 966 _pkg => $pkg,
906 argv => $argv, 967 argv => $argv,
907 }, $pkg; 968 }, $pkg;
1634 $self->{term}->ungrab; 1695 $self->{term}->ungrab;
1635} 1696}
1636 1697
1637=back 1698=back
1638 1699
1700=cut
1701
1702package urxvt::watcher;
1703
1704@urxvt::timer::ISA = __PACKAGE__;
1705@urxvt::iow::ISA = __PACKAGE__;
1706@urxvt::pw::ISA = __PACKAGE__;
1707@urxvt::iw::ISA = __PACKAGE__;
1708
1639=head2 The C<urxvt::timer> Class 1709=head2 The C<urxvt::timer> Class
1640 1710
1641This class implements timer watchers/events. Time is represented as a 1711This class implements timer watchers/events. Time is represented as a
1642fractional number of seconds since the epoch. Example: 1712fractional number of seconds since the epoch. Example:
1643 1713
1740 1810
1741Stop watching for events on the given filehandle. 1811Stop watching for events on the given filehandle.
1742 1812
1743=back 1813=back
1744 1814
1815=head2 The C<urxvt::iw> Class
1816
1817This class implements idle watchers, that get called automatically when
1818the process is idle. They should return as fast as possible, after doing
1819some useful work.
1820
1821=over 4
1822
1823=item $iw = new urxvt::iw
1824
1825Create a new idle watcher object in stopped state.
1826
1827=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1828
1829Set the callback to be called when the watcher triggers.
1830
1831=item $timer = $timer->start
1832
1833Start the watcher.
1834
1835=item $timer = $timer->stop
1836
1837Stop the watcher.
1838
1839=back
1840
1841=head2 The C<urxvt::pw> Class
1842
1843This class implements process watchers. They create an event whenever a
1844process exits, after which they stop automatically.
1845
1846 my $pid = fork;
1847 ...
1848 $term->{pw} = urxvt::pw
1849 ->new
1850 ->start ($pid)
1851 ->cb (sub {
1852 my ($pw, $exit_status) = @_;
1853 ...
1854 });
1855
1856=over 4
1857
1858=item $pw = new urxvt::pw
1859
1860Create a new process watcher in stopped state.
1861
1862=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1863
1864Set the callback to be called when the timer triggers.
1865
1866=item $pw = $timer->start ($pid)
1867
1868Tells the wqtcher to start watching for process C<$pid>.
1869
1870=item $pw = $pw->stop
1871
1872Stop the watcher.
1873
1874=back
1875
1745=head1 ENVIRONMENT 1876=head1 ENVIRONMENT
1746 1877
1747=head2 URXVT_PERL_VERBOSITY 1878=head2 URXVT_PERL_VERBOSITY
1748 1879
1749This variable controls the verbosity level of the perl extension. Higher 1880This variable controls the verbosity level of the perl extension. Higher

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