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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 1.115 by root, Fri Jan 20 15:57:21 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
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. 96evalution, 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 Shift-Left and
175Shift-Right will switch to the tab left or right of the current one.
176
162=item mark-urls 177=item mark-urls
163 178
164Uses per-line display filtering (C<on_line_update>) to underline urls and 179Uses per-line display filtering (C<on_line_update>) to underline urls and
165make them clickable. When middle-clicked, the program specified in the 180make them clickable. When middle-clicked, the program specified in the
166resource C<urlLauncher> (default C<x-www-browser>) will be started with 181resource C<urlLauncher> (default C<x-www-browser>) will be started with
298called whenever the relevant event happens. 313called whenever the relevant event happens.
299 314
300The first argument passed to them is an extension oject as described in 315The first argument passed to them is an extension oject as described in
301the in the C<Extension Objects> section. 316the in the C<Extension Objects> section.
302 317
303B<All> of these hooks must return a boolean value. If it is true, then the 318B<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 319hooks 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. 320relevant action might not be carried out by the C++ code.
306 321
307I<< When in doubt, return a false value (preferably C<()>). >> 322I<< When in doubt, return a false value (preferably C<()>). >>
308 323
309=over 4 324=over 4
310 325
311=item on_init $term 326=item on_init $term
312 327
313Called after a new terminal object has been initialized, but before 328Called after a new terminal object has been initialized, but before
314windows are created or the command gets run. Most methods are unsafe to 329windows are created or the command gets run. Most methods are unsafe to
315call or deliver senseless data, as terminal size and other characteristics 330call or deliver senseless data, as terminal size and other characteristics
316have not yet been determined. You can safely query and change resources, 331have not yet been determined. You can safely query and change resources
317though. 332and options, though. For many purposes the C<on_start> hook is a better
333place.
334
335=item on_start $term
336
337Called at the very end of initialisation of a new terminal, just before
338trying to map (display) the toplevel and returning to the mainloop.
339
340=item on_destroy $term
341
342Called whenever something tries to destroy terminal, before doing anything
343yet. If this hook returns true, then destruction is skipped, but this is
344rarely a good idea.
318 345
319=item on_reset $term 346=item on_reset $term
320 347
321Called after the screen is "reset" for any reason, such as resizing or 348Called 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 349control sequences. Here is where you can react on changes to size-related
323variables. 350variables.
324
325=item on_start $term
326
327Called at the very end of initialisation of a new terminal, just before
328returning to the mainloop.
329 351
330=item on_child_start $term, $pid 352=item on_child_start $term, $pid
331 353
332Called just after the child process has been C<fork>ed. 354Called just after the child process has been C<fork>ed.
333 355
479C<on_key_press> additionally receives the string rxvt-unicode would 501C<on_key_press> additionally receives the string rxvt-unicode would
480output, if any, in locale-specific encoding. 502output, if any, in locale-specific encoding.
481 503
482subwindow. 504subwindow.
483 505
506=item on_client_message $term, $event
507
508=item on_wm_protocols $term, $event
509
510=item on_wm_delete_window $term, $event
511
512Called when various types of ClientMessage events are received (all with
513format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
514
484=back 515=back
485 516
486=cut 517=cut
487 518
488package urxvt; 519package urxvt;
493use Scalar::Util (); 524use Scalar::Util ();
494use List::Util (); 525use List::Util ();
495 526
496our $VERSION = 1; 527our $VERSION = 1;
497our $TERM; 528our $TERM;
529our @TERM_INIT;
530our @TERM_EXT;
498our @HOOKNAME; 531our @HOOKNAME;
499our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 532our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
500our %OPTION; 533our %OPTION;
501 534
502our $LIBDIR; 535our $LIBDIR;
523 556
524=item $urxvt::TERM 557=item $urxvt::TERM
525 558
526The current terminal. This variable stores the current C<urxvt::term> 559The current terminal. This variable stores the current C<urxvt::term>
527object, whenever a callback/hook is executing. 560object, whenever a callback/hook is executing.
561
562=item @urxvt::TERM_INIT
563
564All coderefs in this array will be called as methods of the next newly
565created C<urxvt::term> object (during the C<on_init> phase). The array
566gets cleared before the codereferences that were in it are being executed,
567so coderefs can push themselves onto it again if they so desire.
568
569This complements to the perl-eval commandline option, but gets executed
570first.
571
572=item @urxvt::TERM_EXT
573
574Works similar to C<@TERM_INIT>, but contains perl package/class names, which
575get registered as normal extensions after calling the hooks in C<@TERM_INIT>
576but before other extensions. Gets cleared just like C<@TERM_INIT>.
528 577
529=back 578=back
530 579
531=head2 Functions in the C<urxvt> Package 580=head2 Functions in the C<urxvt> Package
532 581
654 703
655# load a single script into its own package, once only 704# load a single script into its own package, once only
656sub extension_package($) { 705sub extension_package($) {
657 my ($path) = @_; 706 my ($path) = @_;
658 707
659 no strict 'refs';
660
661 $extension_pkg{$path} ||= do { 708 $extension_pkg{$path} ||= do {
662 $path =~ /([^\/\\]+)$/; 709 $path =~ /([^\/\\]+)$/;
663 my $pkg = $1; 710 my $pkg = $1;
664 $pkg =~ s/[^[:word:]]/_/g; 711 $pkg =~ s/[^[:word:]]/_/g;
665 $pkg = "urxvt::ext::$pkg"; 712 $pkg = "urxvt::ext::$pkg";
667 verbose 3, "loading extension '$path' into package '$pkg'"; 714 verbose 3, "loading extension '$path' into package '$pkg'";
668 715
669 open my $fh, "<:raw", $path 716 open my $fh, "<:raw", $path
670 or die "$path: $!"; 717 or die "$path: $!";
671 718
672 @{"$pkg\::ISA"} = urxvt::term::extension::;
673
674 my $source = 719 my $source =
675 "package $pkg; use strict; use utf8;\n" 720 "package $pkg; use strict; use utf8;\n"
676 . "#line 1 \"$path\"\n{\n" 721 . "#line 1 \"$path\"\n{\n"
677 . (do { local $/; <$fh> }) 722 . (do { local $/; <$fh> })
678 . "\n};\n1"; 723 . "\n};\n1";
694 if ($htype == 0) { # INIT 739 if ($htype == 0) { # INIT
695 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 740 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
696 741
697 my %ext_arg; 742 my %ext_arg;
698 743
744 {
745 my @init = @TERM_INIT;
746 @TERM_INIT = ();
747 $_->($TERM) for @init;
748 my @pkg = @TERM_EXT;
749 @TERM_EXT = ();
750 $TERM->register_package ($_) for @pkg;
751 }
752
699 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 753 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
700 if ($_ eq "default") { 754 if ($_ eq "default") {
701 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 755 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
702 } elsif (/^-(.*)$/) { 756 } elsif (/^-(.*)$/) {
703 delete $ext_arg{$1}; 757 delete $ext_arg{$1};
704 } elsif (/^([^<]+)<(.*)>$/) { 758 } elsif (/^([^<]+)<(.*)>$/) {
729 if $verbosity >= 10; 783 if $verbosity >= 10;
730 784
731 keys %$cb; 785 keys %$cb;
732 786
733 while (my ($pkg, $cb) = each %$cb) { 787 while (my ($pkg, $cb) = each %$cb) {
734 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 788 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
735 and last; 789 $retval ||= $retval_;
736 790
737 if ($@) { 791 if ($@) {
738 $TERM->ungrab; # better to lose the grab than the session 792 $TERM->ungrab; # better to lose the grab than the session
739 warn $@; 793 warn $@;
740 } 794 }
898 952
899# find on_xxx subs in the package and register them 953# find on_xxx subs in the package and register them
900# as hooks 954# as hooks
901sub register_package { 955sub register_package {
902 my ($self, $pkg, $argv) = @_; 956 my ($self, $pkg, $argv) = @_;
957
958 no strict 'refs';
959
960 urxvt::verbose 6, "register package $pkg to $self";
961
962 @{"$pkg\::ISA"} = urxvt::term::extension::;
903 963
904 my $proxy = bless { 964 my $proxy = bless {
905 _pkg => $pkg, 965 _pkg => $pkg,
906 argv => $argv, 966 argv => $argv,
907 }, $pkg; 967 }, $pkg;
1634 $self->{term}->ungrab; 1694 $self->{term}->ungrab;
1635} 1695}
1636 1696
1637=back 1697=back
1638 1698
1699=cut
1700
1701package urxvt::watcher;
1702
1703@urxvt::timer::ISA = __PACKAGE__;
1704@urxvt::iow::ISA = __PACKAGE__;
1705@urxvt::pw::ISA = __PACKAGE__;
1706@urxvt::iw::ISA = __PACKAGE__;
1707
1639=head2 The C<urxvt::timer> Class 1708=head2 The C<urxvt::timer> Class
1640 1709
1641This class implements timer watchers/events. Time is represented as a 1710This class implements timer watchers/events. Time is represented as a
1642fractional number of seconds since the epoch. Example: 1711fractional number of seconds since the epoch. Example:
1643 1712
1740 1809
1741Stop watching for events on the given filehandle. 1810Stop watching for events on the given filehandle.
1742 1811
1743=back 1812=back
1744 1813
1814=head2 The C<urxvt::iw> Class
1815
1816This class implements idle watchers, that get called automatically when
1817the process is idle. They should return as fast as possible, after doing
1818some useful work.
1819
1820=over 4
1821
1822=item $iw = new urxvt::iw
1823
1824Create a new idle watcher object in stopped state.
1825
1826=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1827
1828Set the callback to be called when the watcher triggers.
1829
1830=item $timer = $timer->start
1831
1832Start the watcher.
1833
1834=item $timer = $timer->stop
1835
1836Stop the watcher.
1837
1838=back
1839
1840=head2 The C<urxvt::pw> Class
1841
1842This class implements process watchers. They create an event whenever a
1843process exits, after which they stop automatically.
1844
1845 my $pid = fork;
1846 ...
1847 $term->{pw} = urxvt::pw
1848 ->new
1849 ->start ($pid)
1850 ->cb (sub {
1851 my ($pw, $exit_status) = @_;
1852 ...
1853 });
1854
1855=over 4
1856
1857=item $pw = new urxvt::pw
1858
1859Create a new process watcher in stopped state.
1860
1861=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1862
1863Set the callback to be called when the timer triggers.
1864
1865=item $pw = $timer->start ($pid)
1866
1867Tells the wqtcher to start watching for process C<$pid>.
1868
1869=item $pw = $pw->stop
1870
1871Stop the watcher.
1872
1873=back
1874
1745=head1 ENVIRONMENT 1875=head1 ENVIRONMENT
1746 1876
1747=head2 URXVT_PERL_VERBOSITY 1877=head2 URXVT_PERL_VERBOSITY
1748 1878
1749This variable controls the verbosity level of the perl extension. Higher 1879This variable controls the verbosity level of the perl extension. Higher

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