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Revision 1.89 by root, Thu Jan 12 12:10:06 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
66 URxvt.selection.pattern-0: \\|([^|]+)\\| 70 URxvt.selection.pattern-0: \\|([^|]+)\\|
67 71
68You can look at the source of the selection extension to see more 72You can look at the source of the selection extension to see more
69interesting uses, such as parsing a line from beginning to end. 73interesting uses, such as parsing a line from beginning to end.
70 74
71This extension also offers the following bindable keyboard command: 75This extension also offers following bindable keyboard commands:
72 76
73=over 4 77=over 4
74 78
75=item rot13 79=item rot13
76 80
87 91
88=item selection-popup (enabled by default) 92=item selection-popup (enabled by default)
89 93
90Binds a popup menu to Ctrl-Button3 that lets you convert the selection 94Binds a popup menu to Ctrl-Button3 that lets you convert the selection
91text into various other formats/action (such as uri unescaping, perl 95text into various other formats/action (such as uri unescaping, perl
92evalution, web-browser starting etc.), depending on content. 96evaluation, web-browser starting etc.), depending on content.
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 @{ $self->{term}{selection_popup_hook} }, sub {
113 /a/ ? ("a to be" => sub { s/a/b/g }
114 : ()
115 };
93 116
94=item searchable-scrollback<hotkey> (enabled by default) 117=item searchable-scrollback<hotkey> (enabled by default)
95 118
96Adds regex search functionality to the scrollback buffer, triggered 119Adds regex search functionality to the scrollback buffer, triggered
97by a hotkey (default: C<M-s>). While in search mode, normal terminal 120by a hotkey (default: C<M-s>). While in search mode, normal terminal
120 143
121For example, the following will transform selections of the form 144For example, the following will transform selections of the form
122C<filename:number>, often seen in compiler messages, into C<vi +$filename 145C<filename:number>, often seen in compiler messages, into C<vi +$filename
123$word>: 146$word>:
124 147
125 URxvt.selection-autotransform.0: s/^(\\S+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/ 148 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
126 149
127And this example matches the same,but replaces it with vi-commands you can 150And this example matches the same,but replaces it with vi-commands you can
128paste directly into your (vi :) editor: 151paste directly into your (vi :) editor:
129 152
130 URxvt.selection-autotransform.0: s/^(S+):(d+):?$/\\x1b:e \\Q$1\\E\\x0d:$2\\x0d/ 153 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/: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.
131 191
132=item mark-urls 192=item mark-urls
133 193
134Uses 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
135make them clickable. When middle-clicked, the program specified in the 195make them clickable. When middle-clicked, the program specified in the
136resource C<urlLauncher> (default C<x-www-browser>) will be started with 196resource C<urlLauncher> (default C<x-www-browser>) will be started with
137the URL as first argument. 197the URL as first argument.
138 198
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
139=item block-graphics-to-ascii 207=item block-graphics-to-ascii
140 208
141A 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,
142by replacing all line-drawing characters (U+2500 .. U+259F) by a 210by replacing all line-drawing characters (U+2500 .. U+259F) by a
143similar-looking ascii character. 211similar-looking ascii character.
149=item example-refresh-hooks 217=item example-refresh-hooks
150 218
151Displays 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
152window. Illustrates overwriting the refresh callbacks to create your own 220window. Illustrates overwriting the refresh callbacks to create your own
153overlays 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/%
154 251
155=back 252=back
156 253
157=head1 API DOCUMENTATION 254=head1 API DOCUMENTATION
158 255
231called whenever the relevant event happens. 328called whenever the relevant event happens.
232 329
233The 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
234the in the C<Extension Objects> section. 331the in the C<Extension Objects> section.
235 332
236B<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
237event 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
238skipped, and the relevant action might not be carried out by the C++ code. 335relevant action might not be carried out by the C++ code.
239 336
240I<< When in doubt, return a false value (preferably C<()>). >> 337I<< When in doubt, return a false value (preferably C<()>). >>
241 338
242=over 4 339=over 4
243 340
244=item on_init $term 341=item on_init $term
245 342
246Called after a new terminal object has been initialized, but before 343Called after a new terminal object has been initialized, but before
247windows 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
248call or deliver senseless data, as terminal size and other characteristics 345call or deliver senseless data, as terminal size and other characteristics
249have not yet been determined. You can safely query and change resources, 346have not yet been determined. You can safely query and change resources
250though. 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.
251 360
252=item on_reset $term 361=item on_reset $term
253 362
254Called 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
255control 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
256variables. 365variables.
257 366
258=item on_start $term 367=item on_child_start $term, $pid
259 368
260Called at the very end of initialisation of a new terminal, just before 369Called just after the child process has been C<fork>ed.
261returning 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>.
262 375
263=item on_sel_make $term, $eventtime 376=item on_sel_make $term, $eventtime
264 377
265Called 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
266selection 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
359 472
360Called whenever the user presses a key combination that has a 473Called whenever the user presses a key combination that has a
361C<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>
362resource in the @@RXVT_NAME@@(1) manpage). 475resource in the @@RXVT_NAME@@(1) manpage).
363 476
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
364=item on_focus_in $term 483=item on_focus_in $term
365 484
366Called whenever the window gets the keyboard focus, before rxvt-unicode 485Called whenever the window gets the keyboard focus, before rxvt-unicode
367does focus in processing. 486does focus in processing.
368 487
369=item on_focus_out $term 488=item on_focus_out $term
370 489
371Called wheneever the window loses keyboard focus, before rxvt-unicode does 490Called wheneever the window loses keyboard focus, before rxvt-unicode does
372focus out processing. 491focus out processing.
373 492
493=item on_configure_notify $term, $event
494
495=item on_property_notify $term, $event
496
374=item on_key_press $term, $event, $keysym, $octets 497=item on_key_press $term, $event, $keysym, $octets
375 498
376=item on_key_release $term, $event, $keysym 499=item on_key_release $term, $event, $keysym
377 500
378=item on_button_press $term, $event 501=item on_button_press $term, $event
387 510
388Called whenever the corresponding X event is received for the terminal If 511Called whenever the corresponding X event is received for the terminal If
389the 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.
390 513
391The 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
392manpage), 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
393and column under the mouse cursor. 516(real, not screen-based) row and column under the mouse cursor.
394 517
395C<on_key_press> additionally receives the string rxvt-unicode would 518C<on_key_press> additionally receives the string rxvt-unicode would
396output, if any, in locale-specific encoding. 519output, if any, in locale-specific encoding.
397 520
398subwindow. 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).
399 531
400=back 532=back
401 533
402=cut 534=cut
403 535
409use Scalar::Util (); 541use Scalar::Util ();
410use List::Util (); 542use List::Util ();
411 543
412our $VERSION = 1; 544our $VERSION = 1;
413our $TERM; 545our $TERM;
546our @TERM_INIT;
547our @TERM_EXT;
414our @HOOKNAME; 548our @HOOKNAME;
415our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 549our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
416our %OPTION; 550our %OPTION;
417 551
418our $LIBDIR; 552our $LIBDIR;
419our $RESNAME; 553our $RESNAME;
420our $RESCLASS; 554our $RESCLASS;
421our $RXVTNAME; 555our $RXVTNAME;
422 556
557our $NOCHAR = chr 0xfffe;
558
423=head2 Variables in the C<urxvt> Package 559=head2 Variables in the C<urxvt> Package
424 560
425=over 4 561=over 4
426 562
427=item $urxvt::LIBDIR 563=item $urxvt::LIBDIR
439 575
440=item $urxvt::TERM 576=item $urxvt::TERM
441 577
442The current terminal. This variable stores the current C<urxvt::term> 578The current terminal. This variable stores the current C<urxvt::term>
443object, 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>.
444 596
445=back 597=back
446 598
447=head2 Functions in the C<urxvt> Package 599=head2 Functions in the C<urxvt> Package
448 600
463Using 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
464correct place, e.g. on stderr of the connecting urxvtc client. 616correct place, e.g. on stderr of the connecting urxvtc client.
465 617
466Messages have a size limit of 1023 bytes currently. 618Messages have a size limit of 1023 bytes currently.
467 619
468=item $is_safe = urxvt::safe
469
470Returns true when it is safe to do potentially unsafe things, such as
471evaluating perl code specified by the user. This is true when urxvt was
472started setuid or setgid.
473
474=item $time = urxvt::NOW 620=item $time = urxvt::NOW
475 621
476Returns the "current time" (as per the event loop). 622Returns the "current time" (as per the event loop).
477 623
478=item urxvt::CurrentTime 624=item urxvt::CurrentTime
479 625
480=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 626=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
481Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 627Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
482Button4Mask, 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
483 645
484Various constants for use in X calls and event processing. 646Various constants for use in X calls and event processing.
485 647
486=back 648=back
487 649
538=back 700=back
539 701
540=cut 702=cut
541 703
542BEGIN { 704BEGIN {
543 urxvt->bootstrap;
544
545 # overwrite perl's warn 705 # overwrite perl's warn
546 *CORE::GLOBAL::warn = sub { 706 *CORE::GLOBAL::warn = sub {
547 my $msg = join "", @_; 707 my $msg = join "", @_;
548 $msg .= "\n" 708 $msg .= "\n"
549 unless $msg =~ /\n$/; 709 unless $msg =~ /\n$/;
550 urxvt::warn ($msg); 710 urxvt::warn ($msg);
551 }; 711 };
552
553 # %ENV is the original startup environment
554 delete $ENV{IFS};
555 delete $ENV{CDPATH};
556 delete $ENV{BASH_ENV};
557 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
558} 712}
559 713
560my @hook_count;
561my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 714my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
562 715
563sub verbose { 716sub verbose {
564 my ($level, $msg) = @_; 717 my ($level, $msg) = @_;
565 warn "$msg\n" if $level <= $verbosity; 718 warn "$msg\n" if $level <= $verbosity;
566} 719}
567 720
568my $extension_pkg = "extension0000";
569my %extension_pkg; 721my %extension_pkg;
570 722
571# load a single script into its own package, once only 723# load a single script into its own package, once only
572sub extension_package($) { 724sub extension_package($) {
573 my ($path) = @_; 725 my ($path) = @_;
574 726
575 $extension_pkg{$path} ||= do { 727 $extension_pkg{$path} ||= do {
576 my $pkg = "urxvt::" . ($extension_pkg++); 728 $path =~ /([^\/\\]+)$/;
729 my $pkg = $1;
730 $pkg =~ s/[^[:word:]]/_/g;
731 $pkg = "urxvt::ext::$pkg";
577 732
578 verbose 3, "loading extension '$path' into package '$pkg'"; 733 verbose 3, "loading extension '$path' into package '$pkg'";
579 734
580 open my $fh, "<:raw", $path 735 open my $fh, "<:raw", $path
581 or die "$path: $!"; 736 or die "$path: $!";
582 737
583 my $source = untaint 738 my $source =
584 "package $pkg; use strict; use utf8;\n" 739 "package $pkg; use strict; use utf8;\n"
585 . "use base urxvt::term::extension::;\n"
586 . "#line 1 \"$path\"\n{\n" 740 . "#line 1 \"$path\"\n{\n"
587 . (do { local $/; <$fh> }) 741 . (do { local $/; <$fh> })
588 . "\n};\n1"; 742 . "\n};\n1";
589 743
590 eval $source 744 eval $source
604 if ($htype == 0) { # INIT 758 if ($htype == 0) { # INIT
605 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 759 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
606 760
607 my %ext_arg; 761 my %ext_arg;
608 762
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
609 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 772 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
610 if ($_ eq "default") { 773 if ($_ eq "default") {
611 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 774 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
612 } elsif (/^-(.*)$/) { 775 } elsif (/^-(.*)$/) {
613 delete $ext_arg{$1}; 776 delete $ext_arg{$1};
614 } elsif (/^([^<]+)<(.*)>$/) { 777 } elsif (/^([^<]+)<(.*)>$/) {
639 if $verbosity >= 10; 802 if $verbosity >= 10;
640 803
641 keys %$cb; 804 keys %$cb;
642 805
643 while (my ($pkg, $cb) = each %$cb) { 806 while (my ($pkg, $cb) = each %$cb) {
644 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 807 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
645 and last; 808 $retval ||= $retval_;
646 809
647 if ($@) { 810 if ($@) {
648 $TERM->ungrab; # better to lose the grab than the session 811 $TERM->ungrab; # better to lose the grab than the session
649 warn $@; 812 warn $@;
650 } 813 }
653 verbose 11, "$HOOKNAME[$htype] returning <$retval>" 816 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
654 if $verbosity >= 11; 817 if $verbosity >= 11;
655 } 818 }
656 819
657 if ($htype == 1) { # DESTROY 820 if ($htype == 1) { # DESTROY
658 if (my $hook = delete $TERM->{_hook}) {
659 for my $htype (0..$#$hook) {
660 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
661 or set_should_invoke $htype, 0;
662 }
663 }
664
665 # clear package objects 821 # clear package objects
666 %$_ = () for values %{ $TERM->{_pkg} }; 822 %$_ = () for values %{ $TERM->{_pkg} };
667 823
668 # clear package 824 # clear package
669 %$TERM = (); 825 %$TERM = ();
670 } 826 }
671 827
672 $retval 828 $retval
673}
674
675sub exec_async(@) {
676 my $pid = fork;
677
678 return
679 if !defined $pid or $pid;
680
681 %ENV = %{ $TERM->env };
682
683 exec @_;
684 _exit 255;
685} 829}
686 830
687# urxvt::term::extension 831# urxvt::term::extension
688 832
689package urxvt::term::extension; 833package urxvt::term::extension;
695 while (my ($name, $cb) = each %hook) { 839 while (my ($name, $cb) = each %hook) {
696 my $htype = $HOOKTYPE{uc $name}; 840 my $htype = $HOOKTYPE{uc $name};
697 defined $htype 841 defined $htype
698 or Carp::croak "unsupported hook type '$name'"; 842 or Carp::croak "unsupported hook type '$name'";
699 843
844 $self->set_should_invoke ($htype, +1)
700 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 845 unless exists $self->{term}{_hook}[$htype]{$pkg};
701 $hook_count[$htype]++
702 or urxvt::set_should_invoke $htype, 1;
703 }
704 846
705 $self->{term}{_hook}[$htype]{$pkg} = $cb; 847 $self->{term}{_hook}[$htype]{$pkg} = $cb;
706 } 848 }
707} 849}
708 850
713 for my $name (@hook) { 855 for my $name (@hook) {
714 my $htype = $HOOKTYPE{uc $name}; 856 my $htype = $HOOKTYPE{uc $name};
715 defined $htype 857 defined $htype
716 or Carp::croak "unsupported hook type '$name'"; 858 or Carp::croak "unsupported hook type '$name'";
717 859
860 $self->set_should_invoke ($htype, -1)
718 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 861 if delete $self->{term}{_hook}[$htype]{$pkg};
719 --$hook_count[$htype]
720 or urxvt::set_should_invoke $htype, 0;
721 }
722 } 862 }
723} 863}
724 864
725our $AUTOLOAD; 865our $AUTOLOAD;
726 866
832# find on_xxx subs in the package and register them 972# find on_xxx subs in the package and register them
833# as hooks 973# as hooks
834sub register_package { 974sub register_package {
835 my ($self, $pkg, $argv) = @_; 975 my ($self, $pkg, $argv) = @_;
836 976
977 no strict 'refs';
978
979 urxvt::verbose 6, "register package $pkg to $self";
980
981 @{"$pkg\::ISA"} = urxvt::term::extension::;
982
837 my $proxy = bless { 983 my $proxy = bless {
838 _pkg => $pkg, 984 _pkg => $pkg,
839 argv => $argv, 985 argv => $argv,
840 }, $pkg; 986 }, $pkg;
841 Scalar::Util::weaken ($proxy->{term} = $self); 987 Scalar::Util::weaken ($proxy->{term} = $self);
872 1018
873Destroy the terminal object (close the window, free resources 1019Destroy the terminal object (close the window, free resources
874etc.). 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
875watchers (timers, io watchers) are still active. 1021watchers (timers, io watchers) are still active.
876 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
877=item $isset = $term->option ($optval[, $set]) 1048=item $isset = $term->option ($optval[, $set])
878 1049
879Returns true if the option specified by C<$optval> is enabled, and 1050Returns true if the option specified by C<$optval> is enabled, and
880optionally 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
881C<%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.
883Here 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
884source file F</src/optinc.h> to see the actual list: 1055source file F</src/optinc.h> to see the actual list:
885 1056
886 borderLess console cursorBlink cursorUnderline hold iconic insecure 1057 borderLess console cursorBlink cursorUnderline hold iconic insecure
887 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1058 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
888 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1059 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
889 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1060 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
890 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1061 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
891 tripleclickwords utmpInhibit visualBell 1062 transparent tripleclickwords utmpInhibit visualBell
892 1063
893=item $value = $term->resource ($name[, $newval]) 1064=item $value = $term->resource ($name[, $newval])
894 1065
895Returns the current resource value associated with a given name and 1066Returns the current resource value associated with a given name and
896optionally 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>
913 1084
914 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1085 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
915 borderLess color cursorBlink cursorUnderline cutchars delete_key 1086 borderLess color cursorBlink cursorUnderline cutchars delete_key
916 display_name embed ext_bwidth fade font geometry hold iconName 1087 display_name embed ext_bwidth fade font geometry hold iconName
917 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1088 imFont imLocale inputMethod insecure int_bwidth intensityStyles
918 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1089 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
919 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1090 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
920 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1091 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
921 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1092 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
922 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1093 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
923 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1094 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
924 shade term_name title transparent transparent_all tripleclickwords 1095 secondaryScreen secondaryScroll selectstyle shade term_name title
925 utmpInhibit visualBell 1096 transient_for transparent transparent_all tripleclickwords utmpInhibit
1097 visualBell
926 1098
927=cut 1099=cut
928 1100
929sub resource($$;$) { 1101sub resource($$;$) {
930 my ($self, $name) = (shift, shift); 1102 my ($self, $name) = (shift, shift);
1104 1276
1105Normally 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
1106confused by changes in cursor position or scrolling. Its useful inside a 1278confused by changes in cursor position or scrolling. Its useful inside a
1107C<on_add_lines> hook, though. 1279C<on_add_lines> hook, though.
1108 1280
1281=item $term->scr_change_screen ($screen)
1282
1283Switch to given screen - 0 primary, 1 secondary.
1284
1109=item $term->cmd_parse ($octets) 1285=item $term->cmd_parse ($octets)
1110 1286
1111Similar 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
1112locale-specific encoding of the terminal and can contain command sequences 1288locale-specific encoding of the terminal and can contain command sequences
1113(escape codes) that will be interpreted. 1289(escape codes) that will be interpreted.
1131 1307
1132=item $windowid = $term->vt 1308=item $windowid = $term->vt
1133 1309
1134Return the window id of the terminal window. 1310Return the window id of the terminal window.
1135 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
1136=item $window_width = $term->width 1319=item $window_width = $term->width
1137 1320
1138=item $window_height = $term->height 1321=item $window_height = $term->height
1139 1322
1140=item $font_width = $term->fwidth 1323=item $font_width = $term->fwidth
1153 1336
1154=item $max_scrollback = $term->saveLines 1337=item $max_scrollback = $term->saveLines
1155 1338
1156=item $nrow_plus_saveLines = $term->total_rows 1339=item $nrow_plus_saveLines = $term->total_rows
1157 1340
1158=item $lines_in_scrollback = $term->nsaved 1341=item $topmost_scrollback_row = $term->top_row
1159 1342
1160Return various integers describing terminal characteristics. 1343Return various integers describing terminal characteristics.
1161 1344
1162=item $x_display = $term->display_id 1345=item $x_display = $term->display_id
1163 1346
1189=item $modifiermask = $term->ModNumLockMask 1372=item $modifiermask = $term->ModNumLockMask
1190 1373
1191Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1374Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1192AltGr), 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.
1193 1376
1377=item $screen = $term->current_screen
1378
1379Returns the currently displayed screen (0 primary, 1 secondary).
1380
1194=item $view_start = $term->view_start ([$newvalue]) 1381=item $view_start = $term->view_start ([$newvalue])
1195 1382
1196Returns the negative row number of the topmost line. Minimum value is 1383Returns the row number of the topmost displayed line. Maximum value is
1197C<0>, which displays the normal terminal contents. Larger values scroll 1384C<0>, which displays the normal terminal contents. Lower values scroll
1198this many lines into the scrollback buffer. 1385this many lines into the scrollback buffer.
1199 1386
1200=item $term->want_refresh 1387=item $term->want_refresh
1201 1388
1202Requests a screen refresh. At the next opportunity, rxvt-unicode will 1389Requests a screen refresh. At the next opportunity, rxvt-unicode will
1216If C<$new_text> is specified, it will replace characters in the current 1403If C<$new_text> is specified, it will replace characters in the current
1217line, starting at column C<$start_col> (default C<0>), which is useful 1404line, starting at column C<$start_col> (default C<0>), which is useful
1218to replace only parts of a line. The font index in the rendition will 1405to replace only parts of a line. The font index in the rendition will
1219automatically be updated. 1406automatically be updated.
1220 1407
1221C<$text> is in a special encoding: tabs and wide characters that use more 1408C<$text> is in a special encoding: tabs and wide characters that use
1222than one cell when displayed are padded with urxvt::NOCHAR characters 1409more than one cell when displayed are padded with C<$urxvt::NOCHAR>
1223(C<chr 65535>). Characters with combining characters and other characters 1410characters. Characters with combining characters and other characters that
1224that 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
1225characters in the private use area. 1412in the private use area.
1226 1413
1227You have to obey this encoding when changing text. The advantage is 1414You have to obey this encoding when changing text. The advantage is
1228that 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
1229characters. 1416characters.
1230 1417
1405 1592
1406Calls XUngrab for the most recent grab. Is called automatically on 1593Calls XUngrab for the most recent grab. Is called automatically on
1407evaluation 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
1408the session. 1595the session.
1409 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
1410=back 1627=back
1411 1628
1412=cut 1629=cut
1413 1630
1414package urxvt::popup; 1631package urxvt::popup;
1515 my $env = $self->{term}->env; 1732 my $env = $self->{term}->env;
1516 # 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.
1517 delete $env->{LC_ALL}; 1734 delete $env->{LC_ALL};
1518 $env->{LC_CTYPE} = $self->{term}->locale; 1735 $env->{LC_CTYPE} = $self->{term}->locale;
1519 1736
1520 urxvt::term->new ($env, $self->{term}->resource ("name"), 1737 urxvt::term->new ($env, "popup",
1521 "--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",
1522 "--transient-for" => $self->{term}->parent, 1741 "--transient-for" => $self->{term}->parent,
1523 "-display" => $self->{term}->display_id, 1742 "-display" => $self->{term}->display_id,
1524 "-pe" => "urxvt-popup") 1743 "-pe" => "urxvt-popup")
1525 or die "unable to create popup window\n"; 1744 or die "unable to create popup window\n";
1526} 1745}
1531 delete $self->{term}{_destroy}{$self}; 1750 delete $self->{term}{_destroy}{$self};
1532 $self->{term}->ungrab; 1751 $self->{term}->ungrab;
1533} 1752}
1534 1753
1535=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__;
1536 1764
1537=head2 The C<urxvt::timer> Class 1765=head2 The C<urxvt::timer> Class
1538 1766
1539This class implements timer watchers/events. Time is represented as a 1767This class implements timer watchers/events. Time is represented as a
1540fractional number of seconds since the epoch. Example: 1768fractional number of seconds since the epoch. Example:
1578Start the timer. 1806Start the timer.
1579 1807
1580=item $timer = $timer->start ($tstamp) 1808=item $timer = $timer->start ($tstamp)
1581 1809
1582Set 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>.
1583 1815
1584=item $timer = $timer->stop 1816=item $timer = $timer->stop
1585 1817
1586Stop the timer. 1818Stop the timer.
1587 1819
1634 1866
1635Stop watching for events on the given filehandle. 1867Stop watching for events on the given filehandle.
1636 1868
1637=back 1869=back
1638 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
1639=head1 ENVIRONMENT 1932=head1 ENVIRONMENT
1640 1933
1641=head2 URXVT_PERL_VERBOSITY 1934=head2 URXVT_PERL_VERBOSITY
1642 1935
1643This 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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