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Revision 1.87 by root, Thu Jan 12 05:37:34 2006 UTC vs.
Revision 1.121 by root, Fri Jan 20 22:49:34 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
48C<--quoting-style=shell>. 52C<--quoting-style=shell>.
49 53
50A double-click usually selects the word under the cursor, further clicks 54A double-click usually selects the word under the cursor, further clicks
51will enlarge the selection. 55will enlarge the selection.
52 56
57The selection works by trying to match a number of regexes and displaying
58them in increasing order of length. You can add your own regexes by
59specifying resources of the form:
60
61 URxvt.selection.pattern-0: perl-regex
62 URxvt.selection.pattern-1: perl-regex
63 ...
64
65The index number (0, 1...) must not have any holes, and each regex must
66contain at least one pair of capturing parentheses, which will be used for
67the match. For example, the followign adds a regex that matches everything
68between two vertical bars:
69
70 URxvt.selection.pattern-0: \\|([^|]+)\\|
71
72You can look at the source of the selection extension to see more
73interesting uses, such as parsing a line from beginning to end.
74
53It also offers the following bindable keyboard command: 75This extension also offers following bindable keyboard commands:
54 76
55=over 4 77=over 4
56 78
57=item rot13 79=item rot13
58 80
69 91
70=item selection-popup (enabled by default) 92=item selection-popup (enabled by default)
71 93
72Binds 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
73text into various other formats/action (such as uri unescaping, perl 95text into various other formats/action (such as uri unescaping, perl
74evalution, web-browser starting etc.), depending on content. 96evaluation, web-browser starting etc.), depending on content.
97
98Other extensions can extend this popup menu by pushing a code reference
99onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the
100popup is displayed.
101
102It's sole argument is the popup menu, which can be modified. The selection
103is in C<$_>, which can be used to decide wether to add something or not.
104It should either return nothing or a string and a code reference. The
105string will be used as button text and the code reference will be called
106when the button gets activated and should transform C<$_>.
107
108The following will add an entry C<a to b> that transforms all C<a>s in
109the selection to C<b>s, but only if the selection currently contains any
110C<a>s:
111
112 push @{ $self->{term}{selection_popup_hook} }, sub {
113 /a/ ? ("a to be" => sub { s/a/b/g }
114 : ()
115 };
75 116
76=item searchable-scrollback<hotkey> (enabled by default) 117=item searchable-scrollback<hotkey> (enabled by default)
77 118
78Adds regex search functionality to the scrollback buffer, triggered 119Adds regex search functionality to the scrollback buffer, triggered
79by a hotkey (default: C<M-s>). While in search mode, normal terminal 120by a hotkey (default: C<M-s>). While in search mode, normal terminal
86bottom. C<Escape> leaves search mode and returns to the point where search 127bottom. C<Escape> leaves search mode and returns to the point where search
87was started, while C<Enter> or C<Return> stay at the current position and 128was started, while C<Enter> or C<Return> stay at the current position and
88additionally stores the first match in the current line into the primary 129additionally stores the first match in the current line into the primary
89selection. 130selection.
90 131
91=item digital-clock 132=item selection-autotransform
92 133
93Displays a digital clock using the built-in overlay. 134This selection allows you to do automatic transforms on a selection
135whenever a selection is made.
136
137It works by specifying perl snippets (most useful is a single C<s///>
138operator) that modify C<$_> as resources:
139
140 URxvt.selection-autotransform.0: transform
141 URxvt.selection-autotransform.1: transform
142 ...
143
144For example, the following will transform selections of the form
145C<filename:number>, often seen in compiler messages, into C<vi +$filename
146$word>:
147
148 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
149
150And this example matches the same,but replaces it with vi-commands you can
151paste directly into your (vi :) editor:
152
153 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
154
155Of course, this can be modified to suit your needs and your editor :)
156
157To expand the example above to typical perl error messages ("XXX at
158FILENAME line YYY."), you need a slightly more elaborate solution:
159
160 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
161 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
162
163The first line tells the selection code to treat the unchanging part of
164every error message as a selection pattern, and the second line transforms
165the message into vi commands to load the file.
166
167=item readline
168
169A support package that tries to make editing with readline easier. At the
170moment, it reacts to clicking with the left mouse button by trying to
171move the text cursor to this position. It does so by generating as many
172cursor-left or cursor-right keypresses as required (the this only works
173for programs that correctly support wide characters).
174
175It only works when clicking into the same line (possibly extended over
176multiple rows) as the text cursor and on the primary screen, to reduce the
177risk of misinterpreting. The normal selection isn't disabled, so quick
178successive clicks might interfere with selection creation in harmless
179ways.
180
181=item tabbed
182
183This transforms the terminal into a tabbar with additional terminals, that
184is, it implements what is commonly refered to as "tabbed terminal". The topmost line
185displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
186button per tab.
187
188Clicking a button will activate that tab. Pressing B<Shift-Left> and
189B<Shift-Right> will switch to the tab left or right of the current one,
190while B<Shift-Down> creates a new tab.
94 191
95=item mark-urls 192=item mark-urls
96 193
97Uses per-line display filtering (C<on_line_update>) to underline urls and 194Uses per-line display filtering (C<on_line_update>) to underline urls and
98make them clickable. When middle-clicked, the program specified in the 195make them clickable. When middle-clicked, the program specified in the
99resource C<urlLauncher> (default C<x-www-browser>) will be started with 196resource C<urlLauncher> (default C<x-www-browser>) will be started with
100the URL as first argument. 197the URL as first argument.
101 198
199=item automove-background
200
201This is basically a one-line extension that dynamically changes the background pixmap offset
202to the window position, in effect creating the same effect as pseudo transparency with
203a custom pixmap. No scaling is supported in this mode. Exmaple:
204
205 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
206
102=item block-graphics-to-ascii 207=item block-graphics-to-ascii
103 208
104A not very useful example of filtering all text output to the terminal, 209A not very useful example of filtering all text output to the terminal,
105by replacing all line-drawing characters (U+2500 .. U+259F) by a 210by replacing all line-drawing characters (U+2500 .. U+259F) by a
106similar-looking ascii character. 211similar-looking ascii character.
107 212
213=item digital-clock
214
215Displays a digital clock using the built-in overlay.
216
108=item example-refresh-hooks 217=item example-refresh-hooks
109 218
110Displays a very simple digital clock in the upper right corner of the 219Displays a very simple digital clock in the upper right corner of the
111window. Illustrates overwriting the refresh callbacks to create your own 220window. Illustrates overwriting the refresh callbacks to create your own
112overlays or changes. 221overlays or changes.
222
223=item selection-pastebin
224
225This is a little rarely useful extension that Uploads the selection as
226textfile to a remote site (or does other things). (The implementation is
227not currently secure for use in a multiuser environment as it writes to
228F</tmp> directly.).
229
230It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
231i.e.
232
233 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
234
235Pressing this combination runs a command with C<%> replaced by the name of
236the textfile. This command can be set via a resource:
237
238 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
239
240And the default is likely not useful to anybody but the few people around
241here :)
242
243The name of the textfile is the hex encoded md5 sum of the selection, so
244the same content should lead to the same filename.
245
246After a successful upload the selection will be replaced by the text given
247in the C<selection-pastebin-url> resource (again, the % is the placeholder
248for the filename):
249
250 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
113 251
114=back 252=back
115 253
116=head1 API DOCUMENTATION 254=head1 API DOCUMENTATION
117 255
190called whenever the relevant event happens. 328called whenever the relevant event happens.
191 329
192The first argument passed to them is an extension oject as described in 330The first argument passed to them is an extension oject as described in
193the in the C<Extension Objects> section. 331the in the C<Extension Objects> section.
194 332
195B<All> of these hooks must return a boolean value. If it is true, then the 333B<All> of these hooks must return a boolean value. If any of the called
196event counts as being I<consumed>, and the invocation of other hooks is 334hooks returns true, then the event counts as being I<consumed>, and the
197skipped, and the relevant action might not be carried out by the C++ code. 335relevant action might not be carried out by the C++ code.
198 336
199I<< When in doubt, return a false value (preferably C<()>). >> 337I<< When in doubt, return a false value (preferably C<()>). >>
200 338
201=over 4 339=over 4
202 340
203=item on_init $term 341=item on_init $term
204 342
205Called after a new terminal object has been initialized, but before 343Called after a new terminal object has been initialized, but before
206windows are created or the command gets run. Most methods are unsafe to 344windows are created or the command gets run. Most methods are unsafe to
207call or deliver senseless data, as terminal size and other characteristics 345call or deliver senseless data, as terminal size and other characteristics
208have not yet been determined. You can safely query and change resources, 346have not yet been determined. You can safely query and change resources
209though. 347and options, though. For many purposes the C<on_start> hook is a better
348place.
349
350=item on_start $term
351
352Called at the very end of initialisation of a new terminal, just before
353trying to map (display) the toplevel and returning to the mainloop.
354
355=item on_destroy $term
356
357Called whenever something tries to destroy terminal, before doing anything
358yet. If this hook returns true, then destruction is skipped, but this is
359rarely a good idea.
210 360
211=item on_reset $term 361=item on_reset $term
212 362
213Called after the screen is "reset" for any reason, such as resizing or 363Called after the screen is "reset" for any reason, such as resizing or
214control sequences. Here is where you can react on changes to size-related 364control sequences. Here is where you can react on changes to size-related
215variables. 365variables.
216 366
217=item on_start $term 367=item on_child_start $term, $pid
218 368
219Called at the very end of initialisation of a new terminal, just before 369Called just after the child process has been C<fork>ed.
220returning to the mainloop. 370
371=item on_child_exit $term, $status
372
373Called just after the child process has exited. C<$status> is the status
374from C<waitpid>.
221 375
222=item on_sel_make $term, $eventtime 376=item on_sel_make $term, $eventtime
223 377
224Called whenever a selection has been made by the user, but before the 378Called whenever a selection has been made by the user, but before the
225selection text is copied, so changes to the beginning, end or type of the 379selection text is copied, so changes to the beginning, end or type of the
318 472
319Called whenever the user presses a key combination that has a 473Called whenever the user presses a key combination that has a
320C<perl:string> action bound to it (see description of the B<keysym> 474C<perl:string> action bound to it (see description of the B<keysym>
321resource in the @@RXVT_NAME@@(1) manpage). 475resource in the @@RXVT_NAME@@(1) manpage).
322 476
477=item on_x_event $term, $event
478
479Called on every X event received on the vt window (and possibly other
480windows). Should only be used as a last resort. Most event structure
481members are not passed.
482
323=item on_focus_in $term 483=item on_focus_in $term
324 484
325Called whenever the window gets the keyboard focus, before rxvt-unicode 485Called whenever the window gets the keyboard focus, before rxvt-unicode
326does focus in processing. 486does focus in processing.
327 487
328=item on_focus_out $term 488=item on_focus_out $term
329 489
330Called wheneever the window loses keyboard focus, before rxvt-unicode does 490Called wheneever the window loses keyboard focus, before rxvt-unicode does
331focus out processing. 491focus out processing.
332 492
493=item on_configure_notify $term, $event
494
495=item on_property_notify $term, $event
496
333=item on_key_press $term, $event, $keysym, $octets 497=item on_key_press $term, $event, $keysym, $octets
334 498
335=item on_key_release $term, $event, $keysym 499=item on_key_release $term, $event, $keysym
336 500
337=item on_button_press $term, $event 501=item on_button_press $term, $event
346 510
347Called whenever the corresponding X event is received for the terminal If 511Called whenever the corresponding X event is received for the terminal If
348the hook returns true, then the even will be ignored by rxvt-unicode. 512the hook returns true, then the even will be ignored by rxvt-unicode.
349 513
350The event is a hash with most values as named by Xlib (see the XEvent 514The event is a hash with most values as named by Xlib (see the XEvent
351manpage), with the additional members C<row> and C<col>, which are the row 515manpage), with the additional members C<row> and C<col>, which are the
352and column under the mouse cursor. 516(real, not screen-based) row and column under the mouse cursor.
353 517
354C<on_key_press> additionally receives the string rxvt-unicode would 518C<on_key_press> additionally receives the string rxvt-unicode would
355output, if any, in locale-specific encoding. 519output, if any, in locale-specific encoding.
356 520
357subwindow. 521subwindow.
522
523=item on_client_message $term, $event
524
525=item on_wm_protocols $term, $event
526
527=item on_wm_delete_window $term, $event
528
529Called when various types of ClientMessage events are received (all with
530format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
358 531
359=back 532=back
360 533
361=cut 534=cut
362 535
368use Scalar::Util (); 541use Scalar::Util ();
369use List::Util (); 542use List::Util ();
370 543
371our $VERSION = 1; 544our $VERSION = 1;
372our $TERM; 545our $TERM;
546our @TERM_INIT;
547our @TERM_EXT;
373our @HOOKNAME; 548our @HOOKNAME;
374our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 549our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
375our %OPTION; 550our %OPTION;
376 551
377our $LIBDIR; 552our $LIBDIR;
378our $RESNAME; 553our $RESNAME;
379our $RESCLASS; 554our $RESCLASS;
380our $RXVTNAME; 555our $RXVTNAME;
381 556
557our $NOCHAR = chr 0xfffe;
558
382=head2 Variables in the C<urxvt> Package 559=head2 Variables in the C<urxvt> Package
383 560
384=over 4 561=over 4
385 562
386=item $urxvt::LIBDIR 563=item $urxvt::LIBDIR
398 575
399=item $urxvt::TERM 576=item $urxvt::TERM
400 577
401The current terminal. This variable stores the current C<urxvt::term> 578The current terminal. This variable stores the current C<urxvt::term>
402object, whenever a callback/hook is executing. 579object, whenever a callback/hook is executing.
580
581=item @urxvt::TERM_INIT
582
583All coderefs in this array will be called as methods of the next newly
584created C<urxvt::term> object (during the C<on_init> phase). The array
585gets cleared before the codereferences that were in it are being executed,
586so coderefs can push themselves onto it again if they so desire.
587
588This complements to the perl-eval commandline option, but gets executed
589first.
590
591=item @urxvt::TERM_EXT
592
593Works similar to C<@TERM_INIT>, but contains perl package/class names, which
594get registered as normal extensions after calling the hooks in C<@TERM_INIT>
595but before other extensions. Gets cleared just like C<@TERM_INIT>.
403 596
404=back 597=back
405 598
406=head2 Functions in the C<urxvt> Package 599=head2 Functions in the C<urxvt> Package
407 600
422Using this function has the advantage that its output ends up in the 615Using this function has the advantage that its output ends up in the
423correct place, e.g. on stderr of the connecting urxvtc client. 616correct place, e.g. on stderr of the connecting urxvtc client.
424 617
425Messages have a size limit of 1023 bytes currently. 618Messages have a size limit of 1023 bytes currently.
426 619
427=item $is_safe = urxvt::safe
428
429Returns true when it is safe to do potentially unsafe things, such as
430evaluating perl code specified by the user. This is true when urxvt was
431started setuid or setgid.
432
433=item $time = urxvt::NOW 620=item $time = urxvt::NOW
434 621
435Returns the "current time" (as per the event loop). 622Returns the "current time" (as per the event loop).
436 623
437=item urxvt::CurrentTime 624=item urxvt::CurrentTime
438 625
439=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 626=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
440Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 627Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
441Button4Mask, Button5Mask, AnyModifier 628Button4Mask, Button5Mask, AnyModifier
629
630=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
631ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
632PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
633Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
634KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
635ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
636FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
637
638=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
639EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
640GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
641UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
642ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
643CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
644SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
442 645
443Various constants for use in X calls and event processing. 646Various constants for use in X calls and event processing.
444 647
445=back 648=back
446 649
497=back 700=back
498 701
499=cut 702=cut
500 703
501BEGIN { 704BEGIN {
502 urxvt->bootstrap;
503
504 # overwrite perl's warn 705 # overwrite perl's warn
505 *CORE::GLOBAL::warn = sub { 706 *CORE::GLOBAL::warn = sub {
506 my $msg = join "", @_; 707 my $msg = join "", @_;
507 $msg .= "\n" 708 $msg .= "\n"
508 unless $msg =~ /\n$/; 709 unless $msg =~ /\n$/;
509 urxvt::warn ($msg); 710 urxvt::warn ($msg);
510 }; 711 };
511
512 # %ENV is the original startup environment
513 delete $ENV{IFS};
514 delete $ENV{CDPATH};
515 delete $ENV{BASH_ENV};
516 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
517} 712}
518 713
519my @hook_count;
520my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 714my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
521 715
522sub verbose { 716sub verbose {
523 my ($level, $msg) = @_; 717 my ($level, $msg) = @_;
524 warn "$msg\n" if $level <= $verbosity; 718 warn "$msg\n" if $level <= $verbosity;
525} 719}
526 720
527my $extension_pkg = "extension0000";
528my %extension_pkg; 721my %extension_pkg;
529 722
530# load a single script into its own package, once only 723# load a single script into its own package, once only
531sub extension_package($) { 724sub extension_package($) {
532 my ($path) = @_; 725 my ($path) = @_;
533 726
534 $extension_pkg{$path} ||= do { 727 $extension_pkg{$path} ||= do {
535 my $pkg = "urxvt::" . ($extension_pkg++); 728 $path =~ /([^\/\\]+)$/;
729 my $pkg = $1;
730 $pkg =~ s/[^[:word:]]/_/g;
731 $pkg = "urxvt::ext::$pkg";
536 732
537 verbose 3, "loading extension '$path' into package '$pkg'"; 733 verbose 3, "loading extension '$path' into package '$pkg'";
538 734
539 open my $fh, "<:raw", $path 735 open my $fh, "<:raw", $path
540 or die "$path: $!"; 736 or die "$path: $!";
541 737
542 my $source = untaint 738 my $source =
543 "package $pkg; use strict; use utf8;\n" 739 "package $pkg; use strict; use utf8;\n"
544 . "use base urxvt::term::extension::;\n"
545 . "#line 1 \"$path\"\n{\n" 740 . "#line 1 \"$path\"\n{\n"
546 . (do { local $/; <$fh> }) 741 . (do { local $/; <$fh> })
547 . "\n};\n1"; 742 . "\n};\n1";
548 743
549 eval $source 744 eval $source
563 if ($htype == 0) { # INIT 758 if ($htype == 0) { # INIT
564 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 759 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
565 760
566 my %ext_arg; 761 my %ext_arg;
567 762
763 {
764 my @init = @TERM_INIT;
765 @TERM_INIT = ();
766 $_->($TERM) for @init;
767 my @pkg = @TERM_EXT;
768 @TERM_EXT = ();
769 $TERM->register_package ($_) for @pkg;
770 }
771
568 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 772 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
569 if ($_ eq "default") { 773 if ($_ eq "default") {
570 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 774 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
571 } elsif (/^-(.*)$/) { 775 } elsif (/^-(.*)$/) {
572 delete $ext_arg{$1}; 776 delete $ext_arg{$1};
573 } elsif (/^([^<]+)<(.*)>$/) { 777 } elsif (/^([^<]+)<(.*)>$/) {
598 if $verbosity >= 10; 802 if $verbosity >= 10;
599 803
600 keys %$cb; 804 keys %$cb;
601 805
602 while (my ($pkg, $cb) = each %$cb) { 806 while (my ($pkg, $cb) = each %$cb) {
603 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 807 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
604 and last; 808 $retval ||= $retval_;
605 809
606 if ($@) { 810 if ($@) {
607 $TERM->ungrab; # better to lose the grab than the session 811 $TERM->ungrab; # better to lose the grab than the session
608 warn $@; 812 warn $@;
609 } 813 }
612 verbose 11, "$HOOKNAME[$htype] returning <$retval>" 816 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
613 if $verbosity >= 11; 817 if $verbosity >= 11;
614 } 818 }
615 819
616 if ($htype == 1) { # DESTROY 820 if ($htype == 1) { # DESTROY
617 if (my $hook = delete $TERM->{_hook}) {
618 for my $htype (0..$#$hook) {
619 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
620 or set_should_invoke $htype, 0;
621 }
622 }
623
624 # clear package objects 821 # clear package objects
625 %$_ = () for values %{ $TERM->{_pkg} }; 822 %$_ = () for values %{ $TERM->{_pkg} };
626 823
627 # clear package 824 # clear package
628 %$TERM = (); 825 %$TERM = ();
629 } 826 }
630 827
631 $retval 828 $retval
632}
633
634sub exec_async(@) {
635 my $pid = fork;
636
637 return
638 if !defined $pid or $pid;
639
640 %ENV = %{ $TERM->env };
641
642 exec @_;
643 _exit 255;
644} 829}
645 830
646# urxvt::term::extension 831# urxvt::term::extension
647 832
648package urxvt::term::extension; 833package urxvt::term::extension;
654 while (my ($name, $cb) = each %hook) { 839 while (my ($name, $cb) = each %hook) {
655 my $htype = $HOOKTYPE{uc $name}; 840 my $htype = $HOOKTYPE{uc $name};
656 defined $htype 841 defined $htype
657 or Carp::croak "unsupported hook type '$name'"; 842 or Carp::croak "unsupported hook type '$name'";
658 843
844 $self->set_should_invoke ($htype, +1)
659 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 845 unless exists $self->{term}{_hook}[$htype]{$pkg};
660 $hook_count[$htype]++
661 or urxvt::set_should_invoke $htype, 1;
662 }
663 846
664 $self->{term}{_hook}[$htype]{$pkg} = $cb; 847 $self->{term}{_hook}[$htype]{$pkg} = $cb;
665 } 848 }
666} 849}
667 850
672 for my $name (@hook) { 855 for my $name (@hook) {
673 my $htype = $HOOKTYPE{uc $name}; 856 my $htype = $HOOKTYPE{uc $name};
674 defined $htype 857 defined $htype
675 or Carp::croak "unsupported hook type '$name'"; 858 or Carp::croak "unsupported hook type '$name'";
676 859
860 $self->set_should_invoke ($htype, -1)
677 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 861 if delete $self->{term}{_hook}[$htype]{$pkg};
678 --$hook_count[$htype]
679 or urxvt::set_should_invoke $htype, 0;
680 }
681 } 862 }
682} 863}
683 864
684our $AUTOLOAD; 865our $AUTOLOAD;
685 866
791# find on_xxx subs in the package and register them 972# find on_xxx subs in the package and register them
792# as hooks 973# as hooks
793sub register_package { 974sub register_package {
794 my ($self, $pkg, $argv) = @_; 975 my ($self, $pkg, $argv) = @_;
795 976
977 no strict 'refs';
978
979 urxvt::verbose 6, "register package $pkg to $self";
980
981 @{"$pkg\::ISA"} = urxvt::term::extension::;
982
796 my $proxy = bless { 983 my $proxy = bless {
797 _pkg => $pkg, 984 _pkg => $pkg,
798 argv => $argv, 985 argv => $argv,
799 }, $pkg; 986 }, $pkg;
800 Scalar::Util::weaken ($proxy->{term} = $self); 987 Scalar::Util::weaken ($proxy->{term} = $self);
831 1018
832Destroy the terminal object (close the window, free resources 1019Destroy the terminal object (close the window, free resources
833etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1020etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
834watchers (timers, io watchers) are still active. 1021watchers (timers, io watchers) are still active.
835 1022
1023=item $term->exec_async ($cmd[, @args])
1024
1025Works like the combination of the C<fork>/C<exec> builtins, which executes
1026("starts") programs in the background. This function takes care of setting
1027the user environment before exec'ing the command (e.g. C<PATH>) and should
1028be preferred over explicit calls to C<exec> or C<system>.
1029
1030Returns the pid of the subprocess or C<undef> on error.
1031
1032=cut
1033
1034sub exec_async {
1035 my $self = shift;
1036
1037 my $pid = fork;
1038
1039 return $pid
1040 if !defined $pid or $pid;
1041
1042 %ENV = %{ $self->env };
1043
1044 exec @_;
1045 urxvt::_exit 255;
1046}
1047
836=item $isset = $term->option ($optval[, $set]) 1048=item $isset = $term->option ($optval[, $set])
837 1049
838Returns true if the option specified by C<$optval> is enabled, and 1050Returns true if the option specified by C<$optval> is enabled, and
839optionally change it. All option values are stored by name in the hash 1051optionally change it. All option values are stored by name in the hash
840C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. 1052C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
842Here is a a likely non-exhaustive list of option names, please see the 1054Here is a a likely non-exhaustive list of option names, please see the
843source file F</src/optinc.h> to see the actual list: 1055source file F</src/optinc.h> to see the actual list:
844 1056
845 borderLess console cursorBlink cursorUnderline hold iconic insecure 1057 borderLess console cursorBlink cursorUnderline hold iconic insecure
846 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1058 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
847 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1059 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
848 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1060 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
849 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1061 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
850 tripleclickwords utmpInhibit visualBell 1062 transparent tripleclickwords utmpInhibit visualBell
851 1063
852=item $value = $term->resource ($name[, $newval]) 1064=item $value = $term->resource ($name[, $newval])
853 1065
854Returns the current resource value associated with a given name and 1066Returns the current resource value associated with a given name and
855optionally sets a new value. Setting values is most useful in the C<init> 1067optionally sets a new value. Setting values is most useful in the C<init>
872 1084
873 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1085 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
874 borderLess color cursorBlink cursorUnderline cutchars delete_key 1086 borderLess color cursorBlink cursorUnderline cutchars delete_key
875 display_name embed ext_bwidth fade font geometry hold iconName 1087 display_name embed ext_bwidth fade font geometry hold iconName
876 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1088 imFont imLocale inputMethod insecure int_bwidth intensityStyles
877 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1089 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
878 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1090 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
879 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1091 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
880 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1092 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
881 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1093 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
882 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1094 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
883 shade term_name title transparent transparent_all tripleclickwords 1095 secondaryScreen secondaryScroll selectstyle shade term_name title
884 utmpInhibit visualBell 1096 transient_for transparent transparent_all tripleclickwords utmpInhibit
1097 visualBell
885 1098
886=cut 1099=cut
887 1100
888sub resource($$;$) { 1101sub resource($$;$) {
889 my ($self, $name) = (shift, shift); 1102 my ($self, $name) = (shift, shift);
1063 1276
1064Normally its not a good idea to use this function, as programs might be 1277Normally its not a good idea to use this function, as programs might be
1065confused by changes in cursor position or scrolling. Its useful inside a 1278confused by changes in cursor position or scrolling. Its useful inside a
1066C<on_add_lines> hook, though. 1279C<on_add_lines> hook, though.
1067 1280
1281=item $term->scr_change_screen ($screen)
1282
1283Switch to given screen - 0 primary, 1 secondary.
1284
1068=item $term->cmd_parse ($octets) 1285=item $term->cmd_parse ($octets)
1069 1286
1070Similar to C<scr_add_lines>, but the argument must be in the 1287Similar to C<scr_add_lines>, but the argument must be in the
1071locale-specific encoding of the terminal and can contain command sequences 1288locale-specific encoding of the terminal and can contain command sequences
1072(escape codes) that will be interpreted. 1289(escape codes) that will be interpreted.
1090 1307
1091=item $windowid = $term->vt 1308=item $windowid = $term->vt
1092 1309
1093Return the window id of the terminal window. 1310Return the window id of the terminal window.
1094 1311
1312=item $term->vt_emask_add ($x_event_mask)
1313
1314Adds the specified events to the vt event mask. Useful e.g. when you want
1315to receive pointer events all the times:
1316
1317 $term->vt_emask_add (urxvt::PointerMotionMask);
1318
1095=item $window_width = $term->width 1319=item $window_width = $term->width
1096 1320
1097=item $window_height = $term->height 1321=item $window_height = $term->height
1098 1322
1099=item $font_width = $term->fwidth 1323=item $font_width = $term->fwidth
1112 1336
1113=item $max_scrollback = $term->saveLines 1337=item $max_scrollback = $term->saveLines
1114 1338
1115=item $nrow_plus_saveLines = $term->total_rows 1339=item $nrow_plus_saveLines = $term->total_rows
1116 1340
1117=item $lines_in_scrollback = $term->nsaved 1341=item $topmost_scrollback_row = $term->top_row
1118 1342
1119Return various integers describing terminal characteristics. 1343Return various integers describing terminal characteristics.
1120 1344
1121=item $x_display = $term->display_id 1345=item $x_display = $term->display_id
1122 1346
1148=item $modifiermask = $term->ModNumLockMask 1372=item $modifiermask = $term->ModNumLockMask
1149 1373
1150Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1374Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1151AltGr), the meta key (often Alt) and the num lock key, if applicable. 1375AltGr), the meta key (often Alt) and the num lock key, if applicable.
1152 1376
1377=item $screen = $term->current_screen
1378
1379Returns the currently displayed screen (0 primary, 1 secondary).
1380
1153=item $view_start = $term->view_start ([$newvalue]) 1381=item $view_start = $term->view_start ([$newvalue])
1154 1382
1155Returns the negative row number of the topmost line. Minimum value is 1383Returns the row number of the topmost displayed line. Maximum value is
1156C<0>, which displays the normal terminal contents. Larger values scroll 1384C<0>, which displays the normal terminal contents. Lower values scroll
1157this many lines into the scrollback buffer. 1385this many lines into the scrollback buffer.
1158 1386
1159=item $term->want_refresh 1387=item $term->want_refresh
1160 1388
1161Requests a screen refresh. At the next opportunity, rxvt-unicode will 1389Requests a screen refresh. At the next opportunity, rxvt-unicode will
1175If C<$new_text> is specified, it will replace characters in the current 1403If C<$new_text> is specified, it will replace characters in the current
1176line, starting at column C<$start_col> (default C<0>), which is useful 1404line, starting at column C<$start_col> (default C<0>), which is useful
1177to replace only parts of a line. The font index in the rendition will 1405to replace only parts of a line. The font index in the rendition will
1178automatically be updated. 1406automatically be updated.
1179 1407
1180C<$text> is in a special encoding: tabs and wide characters that use more 1408C<$text> is in a special encoding: tabs and wide characters that use
1181than one cell when displayed are padded with urxvt::NOCHAR characters 1409more than one cell when displayed are padded with C<$urxvt::NOCHAR>
1182(C<chr 65535>). Characters with combining characters and other characters 1410characters. Characters with combining characters and other characters that
1183that do not fit into the normal tetx encoding will be replaced with 1411do not fit into the normal tetx encoding will be replaced with characters
1184characters in the private use area. 1412in the private use area.
1185 1413
1186You have to obey this encoding when changing text. The advantage is 1414You have to obey this encoding when changing text. The advantage is
1187that C<substr> and similar functions work on screen cells and not on 1415that C<substr> and similar functions work on screen cells and not on
1188characters. 1416characters.
1189 1417
1364 1592
1365Calls XUngrab for the most recent grab. Is called automatically on 1593Calls XUngrab for the most recent grab. Is called automatically on
1366evaluation errors, as it is better to lose the grab in the error case as 1594evaluation errors, as it is better to lose the grab in the error case as
1367the session. 1595the session.
1368 1596
1597=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1598
1599=item $atom_name = $term->XGetAtomName ($atom)
1600
1601=item @atoms = $term->XListProperties ($window)
1602
1603=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1604
1605=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1606
1607=item $term->XDeleteProperty ($window, $property)
1608
1609=item $window = $term->DefaultRootWindow
1610
1611=item $term->XReparentWindow ($window, $parent, [$x, $y])
1612
1613=item $term->XMapWindow ($window)
1614
1615=item $term->XUnmapWindow ($window)
1616
1617=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1618
1619=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1620
1621=item $term->XChangeInput ($window, $add_events[, $del_events])
1622
1623Various X or X-related functions. The C<$term> object only serves as
1624the source of the display, otherwise those functions map more-or-less
1625directory onto the X functions of the same name.
1626
1369=back 1627=back
1370 1628
1371=cut 1629=cut
1372 1630
1373package urxvt::popup; 1631package urxvt::popup;
1474 my $env = $self->{term}->env; 1732 my $env = $self->{term}->env;
1475 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. 1733 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1476 delete $env->{LC_ALL}; 1734 delete $env->{LC_ALL};
1477 $env->{LC_CTYPE} = $self->{term}->locale; 1735 $env->{LC_CTYPE} = $self->{term}->locale;
1478 1736
1479 urxvt::term->new ($env, $self->{term}->resource ("name"), 1737 urxvt::term->new ($env, "popup",
1480 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1738 "--perl-lib" => "", "--perl-ext-common" => "",
1739 "-pty-fd" => -1, "-sl" => 0,
1740 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1481 "--transient-for" => $self->{term}->parent, 1741 "--transient-for" => $self->{term}->parent,
1482 "-display" => $self->{term}->display_id, 1742 "-display" => $self->{term}->display_id,
1483 "-pe" => "urxvt-popup") 1743 "-pe" => "urxvt-popup")
1484 or die "unable to create popup window\n"; 1744 or die "unable to create popup window\n";
1485} 1745}
1490 delete $self->{term}{_destroy}{$self}; 1750 delete $self->{term}{_destroy}{$self};
1491 $self->{term}->ungrab; 1751 $self->{term}->ungrab;
1492} 1752}
1493 1753
1494=back 1754=back
1755
1756=cut
1757
1758package urxvt::watcher;
1759
1760@urxvt::timer::ISA = __PACKAGE__;
1761@urxvt::iow::ISA = __PACKAGE__;
1762@urxvt::pw::ISA = __PACKAGE__;
1763@urxvt::iw::ISA = __PACKAGE__;
1495 1764
1496=head2 The C<urxvt::timer> Class 1765=head2 The C<urxvt::timer> Class
1497 1766
1498This class implements timer watchers/events. Time is represented as a 1767This class implements timer watchers/events. Time is represented as a
1499fractional number of seconds since the epoch. Example: 1768fractional number of seconds since the epoch. Example:
1537Start the timer. 1806Start the timer.
1538 1807
1539=item $timer = $timer->start ($tstamp) 1808=item $timer = $timer->start ($tstamp)
1540 1809
1541Set the event trigger time to C<$tstamp> and start the timer. 1810Set the event trigger time to C<$tstamp> and start the timer.
1811
1812=item $timer = $timer->after ($delay)
1813
1814Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1542 1815
1543=item $timer = $timer->stop 1816=item $timer = $timer->stop
1544 1817
1545Stop the timer. 1818Stop the timer.
1546 1819
1593 1866
1594Stop watching for events on the given filehandle. 1867Stop watching for events on the given filehandle.
1595 1868
1596=back 1869=back
1597 1870
1871=head2 The C<urxvt::iw> Class
1872
1873This class implements idle watchers, that get called automatically when
1874the process is idle. They should return as fast as possible, after doing
1875some useful work.
1876
1877=over 4
1878
1879=item $iw = new urxvt::iw
1880
1881Create a new idle watcher object in stopped state.
1882
1883=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1884
1885Set the callback to be called when the watcher triggers.
1886
1887=item $timer = $timer->start
1888
1889Start the watcher.
1890
1891=item $timer = $timer->stop
1892
1893Stop the watcher.
1894
1895=back
1896
1897=head2 The C<urxvt::pw> Class
1898
1899This class implements process watchers. They create an event whenever a
1900process exits, after which they stop automatically.
1901
1902 my $pid = fork;
1903 ...
1904 $term->{pw} = urxvt::pw
1905 ->new
1906 ->start ($pid)
1907 ->cb (sub {
1908 my ($pw, $exit_status) = @_;
1909 ...
1910 });
1911
1912=over 4
1913
1914=item $pw = new urxvt::pw
1915
1916Create a new process watcher in stopped state.
1917
1918=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1919
1920Set the callback to be called when the timer triggers.
1921
1922=item $pw = $timer->start ($pid)
1923
1924Tells the wqtcher to start watching for process C<$pid>.
1925
1926=item $pw = $pw->stop
1927
1928Stop the watcher.
1929
1930=back
1931
1598=head1 ENVIRONMENT 1932=head1 ENVIRONMENT
1599 1933
1600=head2 URXVT_PERL_VERBOSITY 1934=head2 URXVT_PERL_VERBOSITY
1601 1935
1602This variable controls the verbosity level of the perl extension. Higher 1936This variable controls the verbosity level of the perl extension. Higher

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