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Revision 1.107 by root, Wed Jan 18 21:30:50 2006 UTC vs.
Revision 1.131 by root, Sun Jan 29 20:51:28 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-clipboard
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
420 515
421=item on_refresh_end $term 516=item on_refresh_end $term
422 517
423Called just after the screen gets redrawn. See C<on_refresh_begin>. 518Called just after the screen gets redrawn. See C<on_refresh_begin>.
424 519
425=item on_keyboard_command $term, $string 520=item on_user_command $term, $string
426 521
427Called whenever the user presses a key combination that has a 522Called whenever the a user-configured event is being activated (e.g. via
428C<perl:string> action bound to it (see description of the B<keysym> 523a C<perl:string> action bound to a key, see description of the B<keysym>
429resource in the @@RXVT_NAME@@(1) manpage). 524resource in the @@RXVT_NAME@@(1) manpage).
525
526The event is simply the action string. This interface is assumed to change
527slightly in the future.
430 528
431=item on_x_event $term, $event 529=item on_x_event $term, $event
432 530
433Called on every X event received on the vt window (and possibly other 531Called on every X event received on the vt window (and possibly other
434windows). Should only be used as a last resort. Most event structure 532windows). Should only be used as a last resort. Most event structure
444Called wheneever the window loses keyboard focus, before rxvt-unicode does 542Called wheneever the window loses keyboard focus, before rxvt-unicode does
445focus out processing. 543focus out processing.
446 544
447=item on_configure_notify $term, $event 545=item on_configure_notify $term, $event
448 546
547=item on_property_notify $term, $event
548
449=item on_key_press $term, $event, $keysym, $octets 549=item on_key_press $term, $event, $keysym, $octets
450 550
451=item on_key_release $term, $event, $keysym 551=item on_key_release $term, $event, $keysym
452 552
453=item on_button_press $term, $event 553=item on_button_press $term, $event
462 562
463Called whenever the corresponding X event is received for the terminal If 563Called whenever the corresponding X event is received for the terminal If
464the hook returns true, then the even will be ignored by rxvt-unicode. 564the hook returns true, then the even will be ignored by rxvt-unicode.
465 565
466The event is a hash with most values as named by Xlib (see the XEvent 566The 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 567manpage), with the additional members C<row> and C<col>, which are the
468and column under the mouse cursor. 568(real, not screen-based) row and column under the mouse cursor.
469 569
470C<on_key_press> additionally receives the string rxvt-unicode would 570C<on_key_press> additionally receives the string rxvt-unicode would
471output, if any, in locale-specific encoding. 571output, if any, in locale-specific encoding.
472 572
473subwindow. 573subwindow.
574
575=item on_client_message $term, $event
576
577=item on_wm_protocols $term, $event
578
579=item on_wm_delete_window $term, $event
580
581Called when various types of ClientMessage events are received (all with
582format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
474 583
475=back 584=back
476 585
477=cut 586=cut
478 587
484use Scalar::Util (); 593use Scalar::Util ();
485use List::Util (); 594use List::Util ();
486 595
487our $VERSION = 1; 596our $VERSION = 1;
488our $TERM; 597our $TERM;
598our @TERM_INIT;
599our @TERM_EXT;
489our @HOOKNAME; 600our @HOOKNAME;
490our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 601our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
491our %OPTION; 602our %OPTION;
492 603
493our $LIBDIR; 604our $LIBDIR;
494our $RESNAME; 605our $RESNAME;
495our $RESCLASS; 606our $RESCLASS;
496our $RXVTNAME; 607our $RXVTNAME;
497 608
609our $NOCHAR = chr 0xffff;
610
498=head2 Variables in the C<urxvt> Package 611=head2 Variables in the C<urxvt> Package
499 612
500=over 4 613=over 4
501 614
502=item $urxvt::LIBDIR 615=item $urxvt::LIBDIR
514 627
515=item $urxvt::TERM 628=item $urxvt::TERM
516 629
517The current terminal. This variable stores the current C<urxvt::term> 630The current terminal. This variable stores the current C<urxvt::term>
518object, whenever a callback/hook is executing. 631object, whenever a callback/hook is executing.
632
633=item @urxvt::TERM_INIT
634
635All coderefs in this array will be called as methods of the next newly
636created C<urxvt::term> object (during the C<on_init> phase). The array
637gets cleared before the codereferences that were in it are being executed,
638so coderefs can push themselves onto it again if they so desire.
639
640This complements to the perl-eval commandline option, but gets executed
641first.
642
643=item @urxvt::TERM_EXT
644
645Works similar to C<@TERM_INIT>, but contains perl package/class names, which
646get registered as normal extensions after calling the hooks in C<@TERM_INIT>
647but before other extensions. Gets cleared just like C<@TERM_INIT>.
519 648
520=back 649=back
521 650
522=head2 Functions in the C<urxvt> Package 651=head2 Functions in the C<urxvt> Package
523 652
537 666
538Using this function has the advantage that its output ends up in the 667Using this function has the advantage that its output ends up in the
539correct place, e.g. on stderr of the connecting urxvtc client. 668correct place, e.g. on stderr of the connecting urxvtc client.
540 669
541Messages have a size limit of 1023 bytes currently. 670Messages have a size limit of 1023 bytes currently.
671
672=item @terms = urxvt::termlist
673
674Returns all urxvt::term objects that exist in this process, regardless of
675wether they are started, being destroyed etc., so be careful. Only term
676objects that have perl extensions attached will be returned (because there
677is no urxvt::term objet associated with others).
542 678
543=item $time = urxvt::NOW 679=item $time = urxvt::NOW
544 680
545Returns the "current time" (as per the event loop). 681Returns the "current time" (as per the event loop).
546 682
632 unless $msg =~ /\n$/; 768 unless $msg =~ /\n$/;
633 urxvt::warn ($msg); 769 urxvt::warn ($msg);
634 }; 770 };
635} 771}
636 772
773no warnings 'utf8';
774
637my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 775my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
638 776
639sub verbose { 777sub verbose {
640 my ($level, $msg) = @_; 778 my ($level, $msg) = @_;
641 warn "$msg\n" if $level <= $verbosity; 779 warn "$msg\n" if $level <= $verbosity;
644my %extension_pkg; 782my %extension_pkg;
645 783
646# load a single script into its own package, once only 784# load a single script into its own package, once only
647sub extension_package($) { 785sub extension_package($) {
648 my ($path) = @_; 786 my ($path) = @_;
649
650 no strict 'refs';
651 787
652 $extension_pkg{$path} ||= do { 788 $extension_pkg{$path} ||= do {
653 $path =~ /([^\/\\]+)$/; 789 $path =~ /([^\/\\]+)$/;
654 my $pkg = $1; 790 my $pkg = $1;
655 $pkg =~ s/[^[:word:]]/_/g; 791 $pkg =~ s/[^[:word:]]/_/g;
658 verbose 3, "loading extension '$path' into package '$pkg'"; 794 verbose 3, "loading extension '$path' into package '$pkg'";
659 795
660 open my $fh, "<:raw", $path 796 open my $fh, "<:raw", $path
661 or die "$path: $!"; 797 or die "$path: $!";
662 798
663 @{"$pkg\::ISA"} = urxvt::term::extension::;
664
665 my $source = 799 my $source =
666 "package $pkg; use strict; use utf8;\n" 800 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
667 . "#line 1 \"$path\"\n{\n" 801 . "#line 1 \"$path\"\n{\n"
668 . (do { local $/; <$fh> }) 802 . (do { local $/; <$fh> })
669 . "\n};\n1"; 803 . "\n};\n1";
670 804
671 eval $source 805 eval $source
685 if ($htype == 0) { # INIT 819 if ($htype == 0) { # INIT
686 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 820 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
687 821
688 my %ext_arg; 822 my %ext_arg;
689 823
824 {
825 my @init = @TERM_INIT;
826 @TERM_INIT = ();
827 $_->($TERM) for @init;
828 my @pkg = @TERM_EXT;
829 @TERM_EXT = ();
830 $TERM->register_package ($_) for @pkg;
831 }
832
690 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 833 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
691 if ($_ eq "default") { 834 if ($_ eq "default") {
692 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 835 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
693 } elsif (/^-(.*)$/) { 836 } elsif (/^-(.*)$/) {
694 delete $ext_arg{$1}; 837 delete $ext_arg{$1};
695 } elsif (/^([^<]+)<(.*)>$/) { 838 } elsif (/^([^<]+)<(.*)>$/) {
696 push @{ $ext_arg{$1} }, $2; 839 push @{ $ext_arg{$1} }, $2;
697 } else { 840 } else {
720 if $verbosity >= 10; 863 if $verbosity >= 10;
721 864
722 keys %$cb; 865 keys %$cb;
723 866
724 while (my ($pkg, $cb) = each %$cb) { 867 while (my ($pkg, $cb) = each %$cb) {
725 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 868 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
726 and last; 869 $retval ||= $retval_;
727 870
728 if ($@) { 871 if ($@) {
729 $TERM->ungrab; # better to lose the grab than the session 872 $TERM->ungrab; # better to lose the grab than the session
730 warn $@; 873 warn $@;
731 } 874 }
742 # clear package 885 # clear package
743 %$TERM = (); 886 %$TERM = ();
744 } 887 }
745 888
746 $retval 889 $retval
747}
748
749sub exec_async(@) {
750 my $pid = fork;
751
752 return
753 if !defined $pid or $pid;
754
755 %ENV = %{ $TERM->env };
756
757 exec @_;
758 _exit 255;
759} 890}
760 891
761# urxvt::term::extension 892# urxvt::term::extension
762 893
763package urxvt::term::extension; 894package urxvt::term::extension;
902# find on_xxx subs in the package and register them 1033# find on_xxx subs in the package and register them
903# as hooks 1034# as hooks
904sub register_package { 1035sub register_package {
905 my ($self, $pkg, $argv) = @_; 1036 my ($self, $pkg, $argv) = @_;
906 1037
1038 no strict 'refs';
1039
1040 urxvt::verbose 6, "register package $pkg to $self";
1041
1042 @{"$pkg\::ISA"} = urxvt::term::extension::;
1043
907 my $proxy = bless { 1044 my $proxy = bless {
908 _pkg => $pkg, 1045 _pkg => $pkg,
909 argv => $argv, 1046 argv => $argv,
910 }, $pkg; 1047 }, $pkg;
911 Scalar::Util::weaken ($proxy->{term} = $self); 1048 Scalar::Util::weaken ($proxy->{term} = $self);
926hash which defines the environment of the new terminal. 1063hash which defines the environment of the new terminal.
927 1064
928Croaks (and probably outputs an error message) if the new instance 1065Croaks (and probably outputs an error message) if the new instance
929couldn't be created. Returns C<undef> if the new instance didn't 1066couldn't be created. Returns C<undef> if the new instance didn't
930initialise perl, and the terminal object otherwise. The C<init> and 1067initialise perl, and the terminal object otherwise. The C<init> and
931C<start> hooks will be called during this call. 1068C<start> hooks will be called before this call returns, and are free to
1069refer to global data (which is race free).
932 1070
933=cut 1071=cut
934 1072
935sub new { 1073sub new {
936 my ($class, $env, @args) = @_; 1074 my ($class, $env, @args) = @_;
937 1075
1076 $env or Carp::croak "environment hash missing in call to urxvt::term->new";
1077 @args or Carp::croak "name argument missing in call to urxvt::term->new";
1078
938 _new ([ map "$_=$env->{$_}", keys %$env ], @args); 1079 _new ([ map "$_=$env->{$_}", keys %$env ], \@args);
939} 1080}
940 1081
941=item $term->destroy 1082=item $term->destroy
942 1083
943Destroy the terminal object (close the window, free resources 1084Destroy the terminal object (close the window, free resources
944etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1085etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
945watchers (timers, io watchers) are still active. 1086watchers (timers, io watchers) are still active.
1087
1088=item $term->exec_async ($cmd[, @args])
1089
1090Works like the combination of the C<fork>/C<exec> builtins, which executes
1091("starts") programs in the background. This function takes care of setting
1092the user environment before exec'ing the command (e.g. C<PATH>) and should
1093be preferred over explicit calls to C<exec> or C<system>.
1094
1095Returns the pid of the subprocess or C<undef> on error.
1096
1097=cut
1098
1099sub exec_async {
1100 my $self = shift;
1101
1102 my $pid = fork;
1103
1104 return $pid
1105 if !defined $pid or $pid;
1106
1107 %ENV = %{ $self->env };
1108
1109 exec @_;
1110 urxvt::_exit 255;
1111}
946 1112
947=item $isset = $term->option ($optval[, $set]) 1113=item $isset = $term->option ($optval[, $set])
948 1114
949Returns true if the option specified by C<$optval> is enabled, and 1115Returns true if the option specified by C<$optval> is enabled, and
950optionally change it. All option values are stored by name in the hash 1116optionally change it. All option values are stored by name in the hash
1175 1341
1176Normally its not a good idea to use this function, as programs might be 1342Normally its not a good idea to use this function, as programs might be
1177confused by changes in cursor position or scrolling. Its useful inside a 1343confused by changes in cursor position or scrolling. Its useful inside a
1178C<on_add_lines> hook, though. 1344C<on_add_lines> hook, though.
1179 1345
1346=item $term->scr_change_screen ($screen)
1347
1348Switch to given screen - 0 primary, 1 secondary.
1349
1180=item $term->cmd_parse ($octets) 1350=item $term->cmd_parse ($octets)
1181 1351
1182Similar to C<scr_add_lines>, but the argument must be in the 1352Similar to C<scr_add_lines>, but the argument must be in the
1183locale-specific encoding of the terminal and can contain command sequences 1353locale-specific encoding of the terminal and can contain command sequences
1184(escape codes) that will be interpreted. 1354(escape codes) that will be interpreted.
1193 1363
1194Replaces the event mask of the pty watcher by the given event mask. Can 1364Replaces the event mask of the pty watcher by the given event mask. Can
1195be used to suppress input and output handling to the pty/tty. See the 1365be used to suppress input and output handling to the pty/tty. See the
1196description of C<< urxvt::timer->events >>. Make sure to always restore 1366description of C<< urxvt::timer->events >>. Make sure to always restore
1197the previous value. 1367the previous value.
1368
1369=item $fd = $term->pty_fd
1370
1371Returns the master file descriptor for the pty in use, or C<-1> if no pty
1372is used.
1198 1373
1199=item $windowid = $term->parent 1374=item $windowid = $term->parent
1200 1375
1201Return the window id of the toplevel window. 1376Return the window id of the toplevel window.
1202 1377
1267=item $modifiermask = $term->ModNumLockMask 1442=item $modifiermask = $term->ModNumLockMask
1268 1443
1269Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1444Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1270AltGr), the meta key (often Alt) and the num lock key, if applicable. 1445AltGr), the meta key (often Alt) and the num lock key, if applicable.
1271 1446
1447=item $screen = $term->current_screen
1448
1449Returns the currently displayed screen (0 primary, 1 secondary).
1450
1451=item $cursor_is_hidden = $term->hidden_cursor
1452
1453Returns wether the cursor is currently hidden or not.
1454
1272=item $view_start = $term->view_start ([$newvalue]) 1455=item $view_start = $term->view_start ([$newvalue])
1273 1456
1274Returns the row number of the topmost displayed line. Maximum value is 1457Returns the row number of the topmost displayed line. Maximum value is
1275C<0>, which displays the normal terminal contents. Lower values scroll 1458C<0>, which displays the normal terminal contents. Lower values scroll
1276this many lines into the scrollback buffer. 1459this many lines into the scrollback buffer.
1295line, starting at column C<$start_col> (default C<0>), which is useful 1478line, starting at column C<$start_col> (default C<0>), which is useful
1296to replace only parts of a line. The font index in the rendition will 1479to replace only parts of a line. The font index in the rendition will
1297automatically be updated. 1480automatically be updated.
1298 1481
1299C<$text> is in a special encoding: tabs and wide characters that use more 1482C<$text> is in a special encoding: tabs and wide characters that use more
1300than one cell when displayed are padded with urxvt::NOCHAR characters 1483than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1301(C<chr 65535>). Characters with combining characters and other characters 1484characters. Characters with combining characters and other characters that
1302that do not fit into the normal tetx encoding will be replaced with 1485do not fit into the normal tetx encoding will be replaced with characters
1303characters in the private use area. 1486in the private use area.
1304 1487
1305You have to obey this encoding when changing text. The advantage is 1488You have to obey this encoding when changing text. The advantage is
1306that C<substr> and similar functions work on screen cells and not on 1489that C<substr> and similar functions work on screen cells and not on
1307characters. 1490characters.
1308 1491
1455=item $string = $term->special_decode $text 1638=item $string = $term->special_decode $text
1456 1639
1457Converts rxvt-unicodes text reprsentation into a perl string. See 1640Converts rxvt-unicodes text reprsentation into a perl string. See
1458C<< $term->ROW_t >> for details. 1641C<< $term->ROW_t >> for details.
1459 1642
1460=item $success = $term->grab_button ($button, $modifiermask) 1643=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
1461 1644
1645=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
1646
1462Registers a synchronous button grab. See the XGrabButton manpage. 1647Register/unregister a synchronous button grab. See the XGrabButton
1648manpage.
1463 1649
1464=item $success = $term->grab ($eventtime[, $sync]) 1650=item $success = $term->grab ($eventtime[, $sync])
1465 1651
1466Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or 1652Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1467synchronous (C<$sync> is true). Also remembers the grab timestampe. 1653synchronous (C<$sync> is true). Also remembers the grab timestampe.
1482=item $term->ungrab 1668=item $term->ungrab
1483 1669
1484Calls XUngrab for the most recent grab. Is called automatically on 1670Calls XUngrab for the most recent grab. Is called automatically on
1485evaluation errors, as it is better to lose the grab in the error case as 1671evaluation errors, as it is better to lose the grab in the error case as
1486the session. 1672the session.
1673
1674=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1675
1676=item $atom_name = $term->XGetAtomName ($atom)
1677
1678=item @atoms = $term->XListProperties ($window)
1679
1680=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1681
1682=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1683
1684=item $term->XDeleteProperty ($window, $property)
1685
1686=item $window = $term->DefaultRootWindow
1687
1688=item $term->XReparentWindow ($window, $parent, [$x, $y])
1689
1690=item $term->XMapWindow ($window)
1691
1692=item $term->XUnmapWindow ($window)
1693
1694=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1695
1696=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1697
1698=item $term->XChangeInput ($window, $add_events[, $del_events])
1699
1700Various X or X-related functions. The C<$term> object only serves as
1701the source of the display, otherwise those functions map more-or-less
1702directory onto the X functions of the same name.
1487 1703
1488=back 1704=back
1489 1705
1490=cut 1706=cut
1491 1707
1611 delete $self->{term}{_destroy}{$self}; 1827 delete $self->{term}{_destroy}{$self};
1612 $self->{term}->ungrab; 1828 $self->{term}->ungrab;
1613} 1829}
1614 1830
1615=back 1831=back
1832
1833=cut
1834
1835package urxvt::watcher;
1836
1837@urxvt::timer::ISA = __PACKAGE__;
1838@urxvt::iow::ISA = __PACKAGE__;
1839@urxvt::pw::ISA = __PACKAGE__;
1840@urxvt::iw::ISA = __PACKAGE__;
1616 1841
1617=head2 The C<urxvt::timer> Class 1842=head2 The C<urxvt::timer> Class
1618 1843
1619This class implements timer watchers/events. Time is represented as a 1844This class implements timer watchers/events. Time is represented as a
1620fractional number of seconds since the epoch. Example: 1845fractional number of seconds since the epoch. Example:
1718 1943
1719Stop watching for events on the given filehandle. 1944Stop watching for events on the given filehandle.
1720 1945
1721=back 1946=back
1722 1947
1948=head2 The C<urxvt::iw> Class
1949
1950This class implements idle watchers, that get called automatically when
1951the process is idle. They should return as fast as possible, after doing
1952some useful work.
1953
1954=over 4
1955
1956=item $iw = new urxvt::iw
1957
1958Create a new idle watcher object in stopped state.
1959
1960=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1961
1962Set the callback to be called when the watcher triggers.
1963
1964=item $timer = $timer->start
1965
1966Start the watcher.
1967
1968=item $timer = $timer->stop
1969
1970Stop the watcher.
1971
1972=back
1973
1974=head2 The C<urxvt::pw> Class
1975
1976This class implements process watchers. They create an event whenever a
1977process exits, after which they stop automatically.
1978
1979 my $pid = fork;
1980 ...
1981 $term->{pw} = urxvt::pw
1982 ->new
1983 ->start ($pid)
1984 ->cb (sub {
1985 my ($pw, $exit_status) = @_;
1986 ...
1987 });
1988
1989=over 4
1990
1991=item $pw = new urxvt::pw
1992
1993Create a new process watcher in stopped state.
1994
1995=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1996
1997Set the callback to be called when the timer triggers.
1998
1999=item $pw = $timer->start ($pid)
2000
2001Tells the wqtcher to start watching for process C<$pid>.
2002
2003=item $pw = $pw->stop
2004
2005Stop the watcher.
2006
2007=back
2008
1723=head1 ENVIRONMENT 2009=head1 ENVIRONMENT
1724 2010
1725=head2 URXVT_PERL_VERBOSITY 2011=head2 URXVT_PERL_VERBOSITY
1726 2012
1727This variable controls the verbosity level of the perl extension. Higher 2013This variable controls the verbosity level of the perl extension. Higher

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