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Revision 1.106 by root, Wed Jan 18 19:44:22 2006 UTC vs.
Revision 1.129 by root, Wed Jan 25 15:11:31 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
63the match. For example, the followign adds a regex that matches everything 67the match. For example, the followign adds a regex that matches everything
64between two vertical bars: 68between two vertical bars:
65 69
66 URxvt.selection.pattern-0: \\|([^|]+)\\| 70 URxvt.selection.pattern-0: \\|([^|]+)\\|
67 71
72Another example: Programs I use often output "absolute path: " at the
73beginning of a line when they process multiple files. The following
74pattern matches the filename (note, there is a single space at the very
75end):
76
77 URxvt.selection.pattern-0: ^(/[^:]+):\
78
68You can look at the source of the selection extension to see more 79You can look at the source of the selection extension to see more
69interesting uses, such as parsing a line from beginning to end. 80interesting uses, such as parsing a line from beginning to end.
70 81
71This extension also offers following bindable keyboard commands: 82This extension also offers following bindable keyboard commands:
72 83
87 98
88=item selection-popup (enabled by default) 99=item selection-popup (enabled by default)
89 100
90Binds a popup menu to Ctrl-Button3 that lets you convert the selection 101Binds a popup menu to Ctrl-Button3 that lets you convert the selection
91text into various other formats/action (such as uri unescaping, perl 102text into various other formats/action (such as uri unescaping, perl
92evalution, web-browser starting etc.), depending on content. 103evaluation, web-browser starting etc.), depending on content.
93 104
94Other extensions can extend this popup menu by pushing a code reference onto 105Other 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. 106onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the
107popup is displayed.
96 108
97It's sole argument is the popup menu, which can be modified. The selection 109It's sole argument is the popup menu, which can be modified. The selection
98is in C<$_>, which can be used to decide wether to add something or not. 110is 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 111It 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 112string will be used as button text and the code reference will be called
102 114
103The following will add an entry C<a to b> that transforms all C<a>s in 115The 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 116the selection to C<b>s, but only if the selection currently contains any
105C<a>s: 117C<a>s:
106 118
107 push urxvt::ext::selection_popup::hook, sub { 119 push @{ $self->{term}{selection_popup_hook} }, sub {
108 /a/ ? ("a to be" => sub { s/a/b/g } 120 /a/ ? ("a to be" => sub { s/a/b/g }
109 : () 121 : ()
110 }; 122 };
111 123
112=item searchable-scrollback<hotkey> (enabled by default) 124=item searchable-scrollback<hotkey> (enabled by default)
122bottom. C<Escape> leaves search mode and returns to the point where search 134bottom. C<Escape> leaves search mode and returns to the point where search
123was started, while C<Enter> or C<Return> stay at the current position and 135was started, while C<Enter> or C<Return> stay at the current position and
124additionally stores the first match in the current line into the primary 136additionally stores the first match in the current line into the primary
125selection. 137selection.
126 138
139=item readline (enabled by default)
140
141A support package that tries to make editing with readline easier. At the
142moment, it reacts to clicking with the left mouse button by trying to
143move the text cursor to this position. It does so by generating as many
144cursor-left or cursor-right keypresses as required (the this only works
145for programs that correctly support wide characters).
146
147To avoid too many false positives, this is only done when:
148
149=over 4
150
151=item - the tty is in ICANON state.
152
153=item - the text cursor is visible.
154
155=item - the primary screen is currently being displayed.
156
157=item - the mouse is on the same (multi-row-) line as the text cursor.
158
159=back
160
161The normal selection mechanism isn't disabled, so quick successive clicks
162might interfere with selection creation in harmless ways.
163
127=item selection-autotransform 164=item selection-autotransform
128 165
129This selection allows you to do automatic transforms on a selection 166This selection allows you to do automatic transforms on a selection
130whenever a selection is made. 167whenever a selection is made.
131 168
143 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/ 180 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
144 181
145And this example matches the same,but replaces it with vi-commands you can 182And this example matches the same,but replaces it with vi-commands you can
146paste directly into your (vi :) editor: 183paste directly into your (vi :) editor:
147 184
148 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/\\x1b:e \\Q$1\\E\\x0d:$2\\x0d/ 185 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
149 186
150Of course, this can be modified to suit your needs and your editor :) 187Of course, this can be modified to suit your needs and your editor :)
151 188
152To expand the example above to typical perl error messages ("XXX at 189To expand the example above to typical perl error messages ("XXX at
153FILENAME line YYY."), you need a slightly more elaborate solution: 190FILENAME line YYY."), you need a slightly more elaborate solution:
154 191
155 URxvt.selection.pattern-0: ( at .*? line \\d+\\.) 192 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
156 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)\\.$/\x1b:e \\Q$1\E\\x0d:$2\\x0d/ 193 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
157 194
158The first line tells the selection code to treat the unchanging part of 195The first line tells the selection code to treat the unchanging part of
159every error message as a selection pattern, and the second line transforms 196every error message as a selection pattern, and the second line transforms
160the message into vi commands to load the file. 197the message into vi commands to load the file.
198
199=item tabbed
200
201This transforms the terminal into a tabbar with additional terminals, that
202is, it implements what is commonly refered to as "tabbed terminal". The topmost line
203displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
204button per tab.
205
206Clicking a button will activate that tab. Pressing B<Shift-Left> and
207B<Shift-Right> will switch to the tab left or right of the current one,
208while B<Shift-Down> creates a new tab.
161 209
162=item mark-urls 210=item mark-urls
163 211
164Uses per-line display filtering (C<on_line_update>) to underline urls and 212Uses per-line display filtering (C<on_line_update>) to underline urls and
165make them clickable. When middle-clicked, the program specified in the 213make them clickable. When middle-clicked, the program specified in the
166resource C<urlLauncher> (default C<x-www-browser>) will be started with 214resource C<urlLauncher> (default C<x-www-browser>) will be started with
167the URL as first argument. 215the URL as first argument.
168 216
217=item xim-onthespot
218
219This (experimental) perl extension implements OnTheSpot editing. It does
220not work perfectly, and some input methods don't seem to work well with
221OnTheSpot editing in general, but it seems to work at leats for SCIM and
222kinput2.
223
224You enable it by specifying this extension and a preedit style of
225C<OnTheSpot>, i.e.:
226
227 @@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
228
169=item automove-background 229=item automove-background
170 230
171This is basically a one-line extension that dynamically changes the background pixmap offset 231This is basically a one-line extension that dynamically changes the background pixmap offset
172to the window position, in effect creating the same effect as pseudo transparency with 232to the window position, in effect creating the same effect as pseudo transparency with
173a custom pixmap. No scaling is supported in this mode. Exmaple: 233a custom pixmap. No scaling is supported in this mode. Exmaple:
182 242
183=item digital-clock 243=item digital-clock
184 244
185Displays a digital clock using the built-in overlay. 245Displays a digital clock using the built-in overlay.
186 246
187=item example-refresh-hooks 247=item remote-selection
188 248
189Displays a very simple digital clock in the upper right corner of the 249Somewhat of a misnomer, this extension adds two menu entries to the
190window. Illustrates overwriting the refresh callbacks to create your own 250selection popup that allows one ti run external commands to store the
191overlays or changes. 251selection somewhere and fetch it again.
252
253We use it to implement a "distributed selection mechanism", which just
254means that one command uploads the file to a remote server, and another
255reads it.
256
257The commands can be set using the C<URxvt.remote-selection.store> and
258C<URxvt.remote-selection.fetch> resources. The first should read the
259selection to store from STDIN (always in UTF-8), the second should provide
260the selection data on STDOUT (also in UTF-8).
261
262The defaults (which are likely useless to you) use rsh and cat:
263
264 URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
265 URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
192 266
193=item selection-pastebin 267=item selection-pastebin
194 268
195This is a little rarely useful extension that Uploads the selection as 269This is a little rarely useful extension that Uploads the selection as
196textfile to a remote site (or does other things). (The implementation is 270textfile to a remote site (or does other things). (The implementation is
216After a successful upload the selection will be replaced by the text given 290After a successful upload the selection will be replaced by the text given
217in the C<selection-pastebin-url> resource (again, the % is the placeholder 291in the C<selection-pastebin-url> resource (again, the % is the placeholder
218for the filename): 292for the filename):
219 293
220 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/% 294 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
295
296=item example-refresh-hooks
297
298Displays a very simple digital clock in the upper right corner of the
299window. Illustrates overwriting the refresh callbacks to create your own
300overlays or changes.
221 301
222=back 302=back
223 303
224=head1 API DOCUMENTATION 304=head1 API DOCUMENTATION
225 305
298called whenever the relevant event happens. 378called whenever the relevant event happens.
299 379
300The first argument passed to them is an extension oject as described in 380The first argument passed to them is an extension oject as described in
301the in the C<Extension Objects> section. 381the in the C<Extension Objects> section.
302 382
303B<All> of these hooks must return a boolean value. If it is true, then the 383B<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 384hooks 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. 385relevant action might not be carried out by the C++ code.
306 386
307I<< When in doubt, return a false value (preferably C<()>). >> 387I<< When in doubt, return a false value (preferably C<()>). >>
308 388
309=over 4 389=over 4
310 390
311=item on_init $term 391=item on_init $term
312 392
313Called after a new terminal object has been initialized, but before 393Called after a new terminal object has been initialized, but before
314windows are created or the command gets run. Most methods are unsafe to 394windows are created or the command gets run. Most methods are unsafe to
315call or deliver senseless data, as terminal size and other characteristics 395call or deliver senseless data, as terminal size and other characteristics
316have not yet been determined. You can safely query and change resources, 396have not yet been determined. You can safely query and change resources
317though. 397and options, though. For many purposes the C<on_start> hook is a better
398place.
399
400=item on_start $term
401
402Called at the very end of initialisation of a new terminal, just before
403trying to map (display) the toplevel and returning to the mainloop.
404
405=item on_destroy $term
406
407Called whenever something tries to destroy terminal, when the terminal is
408still fully functional (not for long, though).
318 409
319=item on_reset $term 410=item on_reset $term
320 411
321Called after the screen is "reset" for any reason, such as resizing or 412Called 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 413control sequences. Here is where you can react on changes to size-related
323variables. 414variables.
324 415
325=item on_start $term 416=item on_child_start $term, $pid
326 417
327Called at the very end of initialisation of a new terminal, just before 418Called just after the child process has been C<fork>ed.
328returning to the mainloop. 419
420=item on_child_exit $term, $status
421
422Called just after the child process has exited. C<$status> is the status
423from C<waitpid>.
329 424
330=item on_sel_make $term, $eventtime 425=item on_sel_make $term, $eventtime
331 426
332Called whenever a selection has been made by the user, but before the 427Called whenever a selection has been made by the user, but before the
333selection text is copied, so changes to the beginning, end or type of the 428selection text is copied, so changes to the beginning, end or type of the
444Called wheneever the window loses keyboard focus, before rxvt-unicode does 539Called wheneever the window loses keyboard focus, before rxvt-unicode does
445focus out processing. 540focus out processing.
446 541
447=item on_configure_notify $term, $event 542=item on_configure_notify $term, $event
448 543
544=item on_property_notify $term, $event
545
449=item on_key_press $term, $event, $keysym, $octets 546=item on_key_press $term, $event, $keysym, $octets
450 547
451=item on_key_release $term, $event, $keysym 548=item on_key_release $term, $event, $keysym
452 549
453=item on_button_press $term, $event 550=item on_button_press $term, $event
462 559
463Called whenever the corresponding X event is received for the terminal If 560Called whenever the corresponding X event is received for the terminal If
464the hook returns true, then the even will be ignored by rxvt-unicode. 561the hook returns true, then the even will be ignored by rxvt-unicode.
465 562
466The event is a hash with most values as named by Xlib (see the XEvent 563The event is a hash with most values as named by Xlib (see the XEvent
467manpage), with the additional members C<row> and C<col>, which are the row 564manpage), with the additional members C<row> and C<col>, which are the
468and column under the mouse cursor. 565(real, not screen-based) row and column under the mouse cursor.
469 566
470C<on_key_press> additionally receives the string rxvt-unicode would 567C<on_key_press> additionally receives the string rxvt-unicode would
471output, if any, in locale-specific encoding. 568output, if any, in locale-specific encoding.
472 569
473subwindow. 570subwindow.
571
572=item on_client_message $term, $event
573
574=item on_wm_protocols $term, $event
575
576=item on_wm_delete_window $term, $event
577
578Called when various types of ClientMessage events are received (all with
579format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
474 580
475=back 581=back
476 582
477=cut 583=cut
478 584
484use Scalar::Util (); 590use Scalar::Util ();
485use List::Util (); 591use List::Util ();
486 592
487our $VERSION = 1; 593our $VERSION = 1;
488our $TERM; 594our $TERM;
595our @TERM_INIT;
596our @TERM_EXT;
489our @HOOKNAME; 597our @HOOKNAME;
490our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 598our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
491our %OPTION; 599our %OPTION;
492 600
493our $LIBDIR; 601our $LIBDIR;
494our $RESNAME; 602our $RESNAME;
495our $RESCLASS; 603our $RESCLASS;
496our $RXVTNAME; 604our $RXVTNAME;
497 605
606our $NOCHAR = chr 0xffff;
607
498=head2 Variables in the C<urxvt> Package 608=head2 Variables in the C<urxvt> Package
499 609
500=over 4 610=over 4
501 611
502=item $urxvt::LIBDIR 612=item $urxvt::LIBDIR
514 624
515=item $urxvt::TERM 625=item $urxvt::TERM
516 626
517The current terminal. This variable stores the current C<urxvt::term> 627The current terminal. This variable stores the current C<urxvt::term>
518object, whenever a callback/hook is executing. 628object, whenever a callback/hook is executing.
629
630=item @urxvt::TERM_INIT
631
632All coderefs in this array will be called as methods of the next newly
633created C<urxvt::term> object (during the C<on_init> phase). The array
634gets cleared before the codereferences that were in it are being executed,
635so coderefs can push themselves onto it again if they so desire.
636
637This complements to the perl-eval commandline option, but gets executed
638first.
639
640=item @urxvt::TERM_EXT
641
642Works similar to C<@TERM_INIT>, but contains perl package/class names, which
643get registered as normal extensions after calling the hooks in C<@TERM_INIT>
644but before other extensions. Gets cleared just like C<@TERM_INIT>.
519 645
520=back 646=back
521 647
522=head2 Functions in the C<urxvt> Package 648=head2 Functions in the C<urxvt> Package
523 649
630 my $msg = join "", @_; 756 my $msg = join "", @_;
631 $msg .= "\n" 757 $msg .= "\n"
632 unless $msg =~ /\n$/; 758 unless $msg =~ /\n$/;
633 urxvt::warn ($msg); 759 urxvt::warn ($msg);
634 }; 760 };
635
636 # %ENV is the original startup environment
637 delete $ENV{IFS};
638 delete $ENV{CDPATH};
639 delete $ENV{BASH_ENV};
640 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
641} 761}
762
763no warnings 'utf8';
642 764
643my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 765my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
644 766
645sub verbose { 767sub verbose {
646 my ($level, $msg) = @_; 768 my ($level, $msg) = @_;
650my %extension_pkg; 772my %extension_pkg;
651 773
652# load a single script into its own package, once only 774# load a single script into its own package, once only
653sub extension_package($) { 775sub extension_package($) {
654 my ($path) = @_; 776 my ($path) = @_;
655
656 no strict 'refs';
657 777
658 $extension_pkg{$path} ||= do { 778 $extension_pkg{$path} ||= do {
659 $path =~ /([^\/\\]+)$/; 779 $path =~ /([^\/\\]+)$/;
660 my $pkg = $1; 780 my $pkg = $1;
661 $pkg =~ s/[^[:word:]]/_/g; 781 $pkg =~ s/[^[:word:]]/_/g;
664 verbose 3, "loading extension '$path' into package '$pkg'"; 784 verbose 3, "loading extension '$path' into package '$pkg'";
665 785
666 open my $fh, "<:raw", $path 786 open my $fh, "<:raw", $path
667 or die "$path: $!"; 787 or die "$path: $!";
668 788
669 @{"$pkg\::ISA"} = urxvt::term::extension::;
670
671 my $source = 789 my $source =
672 "package $pkg; use strict; use utf8;\n" 790 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
673 . "#line 1 \"$path\"\n{\n" 791 . "#line 1 \"$path\"\n{\n"
674 . (do { local $/; <$fh> }) 792 . (do { local $/; <$fh> })
675 . "\n};\n1"; 793 . "\n};\n1";
676 794
677 eval $source 795 eval $source
691 if ($htype == 0) { # INIT 809 if ($htype == 0) { # INIT
692 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 810 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
693 811
694 my %ext_arg; 812 my %ext_arg;
695 813
814 {
815 my @init = @TERM_INIT;
816 @TERM_INIT = ();
817 $_->($TERM) for @init;
818 my @pkg = @TERM_EXT;
819 @TERM_EXT = ();
820 $TERM->register_package ($_) for @pkg;
821 }
822
696 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 823 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
697 if ($_ eq "default") { 824 if ($_ eq "default") {
698 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 825 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
699 } elsif (/^-(.*)$/) { 826 } elsif (/^-(.*)$/) {
700 delete $ext_arg{$1}; 827 delete $ext_arg{$1};
701 } elsif (/^([^<]+)<(.*)>$/) { 828 } elsif (/^([^<]+)<(.*)>$/) {
702 push @{ $ext_arg{$1} }, $2; 829 push @{ $ext_arg{$1} }, $2;
703 } else { 830 } else {
726 if $verbosity >= 10; 853 if $verbosity >= 10;
727 854
728 keys %$cb; 855 keys %$cb;
729 856
730 while (my ($pkg, $cb) = each %$cb) { 857 while (my ($pkg, $cb) = each %$cb) {
731 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 858 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
732 and last; 859 $retval ||= $retval_;
733 860
734 if ($@) { 861 if ($@) {
735 $TERM->ungrab; # better to lose the grab than the session 862 $TERM->ungrab; # better to lose the grab than the session
736 warn $@; 863 warn $@;
737 } 864 }
748 # clear package 875 # clear package
749 %$TERM = (); 876 %$TERM = ();
750 } 877 }
751 878
752 $retval 879 $retval
753}
754
755sub exec_async(@) {
756 my $pid = fork;
757
758 return
759 if !defined $pid or $pid;
760
761 %ENV = %{ $TERM->env };
762
763 exec @_;
764 _exit 255;
765} 880}
766 881
767# urxvt::term::extension 882# urxvt::term::extension
768 883
769package urxvt::term::extension; 884package urxvt::term::extension;
908# find on_xxx subs in the package and register them 1023# find on_xxx subs in the package and register them
909# as hooks 1024# as hooks
910sub register_package { 1025sub register_package {
911 my ($self, $pkg, $argv) = @_; 1026 my ($self, $pkg, $argv) = @_;
912 1027
1028 no strict 'refs';
1029
1030 urxvt::verbose 6, "register package $pkg to $self";
1031
1032 @{"$pkg\::ISA"} = urxvt::term::extension::;
1033
913 my $proxy = bless { 1034 my $proxy = bless {
914 _pkg => $pkg, 1035 _pkg => $pkg,
915 argv => $argv, 1036 argv => $argv,
916 }, $pkg; 1037 }, $pkg;
917 Scalar::Util::weaken ($proxy->{term} = $self); 1038 Scalar::Util::weaken ($proxy->{term} = $self);
947=item $term->destroy 1068=item $term->destroy
948 1069
949Destroy the terminal object (close the window, free resources 1070Destroy the terminal object (close the window, free resources
950etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1071etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
951watchers (timers, io watchers) are still active. 1072watchers (timers, io watchers) are still active.
1073
1074=item $term->exec_async ($cmd[, @args])
1075
1076Works like the combination of the C<fork>/C<exec> builtins, which executes
1077("starts") programs in the background. This function takes care of setting
1078the user environment before exec'ing the command (e.g. C<PATH>) and should
1079be preferred over explicit calls to C<exec> or C<system>.
1080
1081Returns the pid of the subprocess or C<undef> on error.
1082
1083=cut
1084
1085sub exec_async {
1086 my $self = shift;
1087
1088 my $pid = fork;
1089
1090 return $pid
1091 if !defined $pid or $pid;
1092
1093 %ENV = %{ $self->env };
1094
1095 exec @_;
1096 urxvt::_exit 255;
1097}
952 1098
953=item $isset = $term->option ($optval[, $set]) 1099=item $isset = $term->option ($optval[, $set])
954 1100
955Returns true if the option specified by C<$optval> is enabled, and 1101Returns true if the option specified by C<$optval> is enabled, and
956optionally change it. All option values are stored by name in the hash 1102optionally change it. All option values are stored by name in the hash
1181 1327
1182Normally its not a good idea to use this function, as programs might be 1328Normally its not a good idea to use this function, as programs might be
1183confused by changes in cursor position or scrolling. Its useful inside a 1329confused by changes in cursor position or scrolling. Its useful inside a
1184C<on_add_lines> hook, though. 1330C<on_add_lines> hook, though.
1185 1331
1332=item $term->scr_change_screen ($screen)
1333
1334Switch to given screen - 0 primary, 1 secondary.
1335
1186=item $term->cmd_parse ($octets) 1336=item $term->cmd_parse ($octets)
1187 1337
1188Similar to C<scr_add_lines>, but the argument must be in the 1338Similar to C<scr_add_lines>, but the argument must be in the
1189locale-specific encoding of the terminal and can contain command sequences 1339locale-specific encoding of the terminal and can contain command sequences
1190(escape codes) that will be interpreted. 1340(escape codes) that will be interpreted.
1199 1349
1200Replaces the event mask of the pty watcher by the given event mask. Can 1350Replaces the event mask of the pty watcher by the given event mask. Can
1201be used to suppress input and output handling to the pty/tty. See the 1351be used to suppress input and output handling to the pty/tty. See the
1202description of C<< urxvt::timer->events >>. Make sure to always restore 1352description of C<< urxvt::timer->events >>. Make sure to always restore
1203the previous value. 1353the previous value.
1354
1355=item $fd = $term->pty_fd
1356
1357Returns the master file descriptor for the pty in use, or C<-1> if no pty
1358is used.
1204 1359
1205=item $windowid = $term->parent 1360=item $windowid = $term->parent
1206 1361
1207Return the window id of the toplevel window. 1362Return the window id of the toplevel window.
1208 1363
1273=item $modifiermask = $term->ModNumLockMask 1428=item $modifiermask = $term->ModNumLockMask
1274 1429
1275Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1430Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1276AltGr), the meta key (often Alt) and the num lock key, if applicable. 1431AltGr), the meta key (often Alt) and the num lock key, if applicable.
1277 1432
1433=item $screen = $term->current_screen
1434
1435Returns the currently displayed screen (0 primary, 1 secondary).
1436
1437=item $cursor_is_hidden = $term->hidden_cursor
1438
1439Returns wether the cursor is currently hidden or not.
1440
1278=item $view_start = $term->view_start ([$newvalue]) 1441=item $view_start = $term->view_start ([$newvalue])
1279 1442
1280Returns the row number of the topmost displayed line. Maximum value is 1443Returns the row number of the topmost displayed line. Maximum value is
1281C<0>, which displays the normal terminal contents. Lower values scroll 1444C<0>, which displays the normal terminal contents. Lower values scroll
1282this many lines into the scrollback buffer. 1445this many lines into the scrollback buffer.
1301line, starting at column C<$start_col> (default C<0>), which is useful 1464line, starting at column C<$start_col> (default C<0>), which is useful
1302to replace only parts of a line. The font index in the rendition will 1465to replace only parts of a line. The font index in the rendition will
1303automatically be updated. 1466automatically be updated.
1304 1467
1305C<$text> is in a special encoding: tabs and wide characters that use more 1468C<$text> is in a special encoding: tabs and wide characters that use more
1306than one cell when displayed are padded with urxvt::NOCHAR characters 1469than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1307(C<chr 65535>). Characters with combining characters and other characters 1470characters. Characters with combining characters and other characters that
1308that do not fit into the normal tetx encoding will be replaced with 1471do not fit into the normal tetx encoding will be replaced with characters
1309characters in the private use area. 1472in the private use area.
1310 1473
1311You have to obey this encoding when changing text. The advantage is 1474You have to obey this encoding when changing text. The advantage is
1312that C<substr> and similar functions work on screen cells and not on 1475that C<substr> and similar functions work on screen cells and not on
1313characters. 1476characters.
1314 1477
1488=item $term->ungrab 1651=item $term->ungrab
1489 1652
1490Calls XUngrab for the most recent grab. Is called automatically on 1653Calls XUngrab for the most recent grab. Is called automatically on
1491evaluation errors, as it is better to lose the grab in the error case as 1654evaluation errors, as it is better to lose the grab in the error case as
1492the session. 1655the session.
1656
1657=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1658
1659=item $atom_name = $term->XGetAtomName ($atom)
1660
1661=item @atoms = $term->XListProperties ($window)
1662
1663=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1664
1665=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1666
1667=item $term->XDeleteProperty ($window, $property)
1668
1669=item $window = $term->DefaultRootWindow
1670
1671=item $term->XReparentWindow ($window, $parent, [$x, $y])
1672
1673=item $term->XMapWindow ($window)
1674
1675=item $term->XUnmapWindow ($window)
1676
1677=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1678
1679=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1680
1681=item $term->XChangeInput ($window, $add_events[, $del_events])
1682
1683Various X or X-related functions. The C<$term> object only serves as
1684the source of the display, otherwise those functions map more-or-less
1685directory onto the X functions of the same name.
1493 1686
1494=back 1687=back
1495 1688
1496=cut 1689=cut
1497 1690
1617 delete $self->{term}{_destroy}{$self}; 1810 delete $self->{term}{_destroy}{$self};
1618 $self->{term}->ungrab; 1811 $self->{term}->ungrab;
1619} 1812}
1620 1813
1621=back 1814=back
1815
1816=cut
1817
1818package urxvt::watcher;
1819
1820@urxvt::timer::ISA = __PACKAGE__;
1821@urxvt::iow::ISA = __PACKAGE__;
1822@urxvt::pw::ISA = __PACKAGE__;
1823@urxvt::iw::ISA = __PACKAGE__;
1622 1824
1623=head2 The C<urxvt::timer> Class 1825=head2 The C<urxvt::timer> Class
1624 1826
1625This class implements timer watchers/events. Time is represented as a 1827This class implements timer watchers/events. Time is represented as a
1626fractional number of seconds since the epoch. Example: 1828fractional number of seconds since the epoch. Example:
1724 1926
1725Stop watching for events on the given filehandle. 1927Stop watching for events on the given filehandle.
1726 1928
1727=back 1929=back
1728 1930
1931=head2 The C<urxvt::iw> Class
1932
1933This class implements idle watchers, that get called automatically when
1934the process is idle. They should return as fast as possible, after doing
1935some useful work.
1936
1937=over 4
1938
1939=item $iw = new urxvt::iw
1940
1941Create a new idle watcher object in stopped state.
1942
1943=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1944
1945Set the callback to be called when the watcher triggers.
1946
1947=item $timer = $timer->start
1948
1949Start the watcher.
1950
1951=item $timer = $timer->stop
1952
1953Stop the watcher.
1954
1955=back
1956
1957=head2 The C<urxvt::pw> Class
1958
1959This class implements process watchers. They create an event whenever a
1960process exits, after which they stop automatically.
1961
1962 my $pid = fork;
1963 ...
1964 $term->{pw} = urxvt::pw
1965 ->new
1966 ->start ($pid)
1967 ->cb (sub {
1968 my ($pw, $exit_status) = @_;
1969 ...
1970 });
1971
1972=over 4
1973
1974=item $pw = new urxvt::pw
1975
1976Create a new process watcher in stopped state.
1977
1978=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1979
1980Set the callback to be called when the timer triggers.
1981
1982=item $pw = $timer->start ($pid)
1983
1984Tells the wqtcher to start watching for process C<$pid>.
1985
1986=item $pw = $pw->stop
1987
1988Stop the watcher.
1989
1990=back
1991
1729=head1 ENVIRONMENT 1992=head1 ENVIRONMENT
1730 1993
1731=head2 URXVT_PERL_VERBOSITY 1994=head2 URXVT_PERL_VERBOSITY
1732 1995
1733This variable controls the verbosity level of the perl extension. Higher 1996This variable controls the verbosity level of the perl extension. Higher

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