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Revision 1.90 by root, Thu Jan 12 12:15:10 2006 UTC vs.
Revision 1.124 by root, Sun Jan 22 11:57:06 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
104bottom. 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
105was 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
106additionally stores the first match in the current line into the primary 129additionally stores the first match in the current line into the primary
107selection. 130selection.
108 131
132=item readline (enabled by default)
133
134A support package that tries to make editing with readline easier. At the
135moment, it reacts to clicking with the left mouse button by trying to
136move the text cursor to this position. It does so by generating as many
137cursor-left or cursor-right keypresses as required (the this only works
138for programs that correctly support wide characters).
139
140To avoid too many false positives, this is only done when:
141
142=over 4
143
144=item - the mouse is on the same (multi-row-) line as the text cursor.
145
146=item - the primary screen is currently being displayed.
147
148=item - the text cursor is visible.
149
150=back
151
152The normal selection mechanism isn't disabled, so quick successive clicks
153might interfere with selection creation in harmless ways.
154
109=item selection-autotransform 155=item selection-autotransform
110 156
111This selection allows you to do automatic transforms on a selection 157This selection allows you to do automatic transforms on a selection
112whenever a selection is made. 158whenever a selection is made.
113 159
120 166
121For example, the following will transform selections of the form 167For example, the following will transform selections of the form
122C<filename:number>, often seen in compiler messages, into C<vi +$filename 168C<filename:number>, often seen in compiler messages, into C<vi +$filename
123$word>: 169$word>:
124 170
125 URxvt.selection-autotransform.0: s/^(\\S+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/ 171 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
126 172
127And this example matches the same,but replaces it with vi-commands you can 173And this example matches the same,but replaces it with vi-commands you can
128paste directly into your (vi :) editor: 174paste directly into your (vi :) editor:
129 175
130 URxvt.selection-autotransform.0: s/^(S+):(d+):?$/\\x1b:e \\Q$1\\E\\x0d:$2\\x0d/ 176 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
131 177
132Of course, this can be modified to suit your needs and your editor :) 178Of course, this can be modified to suit your needs and your editor :)
179
180To expand the example above to typical perl error messages ("XXX at
181FILENAME line YYY."), you need a slightly more elaborate solution:
182
183 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
184 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
185
186The first line tells the selection code to treat the unchanging part of
187every error message as a selection pattern, and the second line transforms
188the message into vi commands to load the file.
189
190=item tabbed
191
192This transforms the terminal into a tabbar with additional terminals, that
193is, it implements what is commonly refered to as "tabbed terminal". The topmost line
194displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
195button per tab.
196
197Clicking a button will activate that tab. Pressing B<Shift-Left> and
198B<Shift-Right> will switch to the tab left or right of the current one,
199while B<Shift-Down> creates a new tab.
133 200
134=item mark-urls 201=item mark-urls
135 202
136Uses per-line display filtering (C<on_line_update>) to underline urls and 203Uses per-line display filtering (C<on_line_update>) to underline urls and
137make them clickable. When middle-clicked, the program specified in the 204make them clickable. When middle-clicked, the program specified in the
138resource C<urlLauncher> (default C<x-www-browser>) will be started with 205resource C<urlLauncher> (default C<x-www-browser>) will be started with
139the URL as first argument. 206the URL as first argument.
140 207
208=item automove-background
209
210This is basically a one-line extension that dynamically changes the background pixmap offset
211to the window position, in effect creating the same effect as pseudo transparency with
212a custom pixmap. No scaling is supported in this mode. Exmaple:
213
214 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
215
141=item block-graphics-to-ascii 216=item block-graphics-to-ascii
142 217
143A not very useful example of filtering all text output to the terminal, 218A not very useful example of filtering all text output to the terminal,
144by replacing all line-drawing characters (U+2500 .. U+259F) by a 219by replacing all line-drawing characters (U+2500 .. U+259F) by a
145similar-looking ascii character. 220similar-looking ascii character.
151=item example-refresh-hooks 226=item example-refresh-hooks
152 227
153Displays a very simple digital clock in the upper right corner of the 228Displays a very simple digital clock in the upper right corner of the
154window. Illustrates overwriting the refresh callbacks to create your own 229window. Illustrates overwriting the refresh callbacks to create your own
155overlays or changes. 230overlays or changes.
231
232=item selection-pastebin
233
234This is a little rarely useful extension that Uploads the selection as
235textfile to a remote site (or does other things). (The implementation is
236not currently secure for use in a multiuser environment as it writes to
237F</tmp> directly.).
238
239It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
240i.e.
241
242 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
243
244Pressing this combination runs a command with C<%> replaced by the name of
245the textfile. This command can be set via a resource:
246
247 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
248
249And the default is likely not useful to anybody but the few people around
250here :)
251
252The name of the textfile is the hex encoded md5 sum of the selection, so
253the same content should lead to the same filename.
254
255After a successful upload the selection will be replaced by the text given
256in the C<selection-pastebin-url> resource (again, the % is the placeholder
257for the filename):
258
259 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
156 260
157=back 261=back
158 262
159=head1 API DOCUMENTATION 263=head1 API DOCUMENTATION
160 264
233called whenever the relevant event happens. 337called whenever the relevant event happens.
234 338
235The first argument passed to them is an extension oject as described in 339The first argument passed to them is an extension oject as described in
236the in the C<Extension Objects> section. 340the in the C<Extension Objects> section.
237 341
238B<All> of these hooks must return a boolean value. If it is true, then the 342B<All> of these hooks must return a boolean value. If any of the called
239event counts as being I<consumed>, and the invocation of other hooks is 343hooks returns true, then the event counts as being I<consumed>, and the
240skipped, and the relevant action might not be carried out by the C++ code. 344relevant action might not be carried out by the C++ code.
241 345
242I<< When in doubt, return a false value (preferably C<()>). >> 346I<< When in doubt, return a false value (preferably C<()>). >>
243 347
244=over 4 348=over 4
245 349
246=item on_init $term 350=item on_init $term
247 351
248Called after a new terminal object has been initialized, but before 352Called after a new terminal object has been initialized, but before
249windows are created or the command gets run. Most methods are unsafe to 353windows are created or the command gets run. Most methods are unsafe to
250call or deliver senseless data, as terminal size and other characteristics 354call or deliver senseless data, as terminal size and other characteristics
251have not yet been determined. You can safely query and change resources, 355have not yet been determined. You can safely query and change resources
252though. 356and options, though. For many purposes the C<on_start> hook is a better
357place.
358
359=item on_start $term
360
361Called at the very end of initialisation of a new terminal, just before
362trying to map (display) the toplevel and returning to the mainloop.
363
364=item on_destroy $term
365
366Called whenever something tries to destroy terminal, before doing anything
367yet. If this hook returns true, then destruction is skipped, but this is
368rarely a good idea.
253 369
254=item on_reset $term 370=item on_reset $term
255 371
256Called after the screen is "reset" for any reason, such as resizing or 372Called after the screen is "reset" for any reason, such as resizing or
257control sequences. Here is where you can react on changes to size-related 373control sequences. Here is where you can react on changes to size-related
258variables. 374variables.
259 375
260=item on_start $term 376=item on_child_start $term, $pid
261 377
262Called at the very end of initialisation of a new terminal, just before 378Called just after the child process has been C<fork>ed.
263returning to the mainloop. 379
380=item on_child_exit $term, $status
381
382Called just after the child process has exited. C<$status> is the status
383from C<waitpid>.
264 384
265=item on_sel_make $term, $eventtime 385=item on_sel_make $term, $eventtime
266 386
267Called whenever a selection has been made by the user, but before the 387Called whenever a selection has been made by the user, but before the
268selection text is copied, so changes to the beginning, end or type of the 388selection text is copied, so changes to the beginning, end or type of the
361 481
362Called whenever the user presses a key combination that has a 482Called whenever the user presses a key combination that has a
363C<perl:string> action bound to it (see description of the B<keysym> 483C<perl:string> action bound to it (see description of the B<keysym>
364resource in the @@RXVT_NAME@@(1) manpage). 484resource in the @@RXVT_NAME@@(1) manpage).
365 485
486=item on_x_event $term, $event
487
488Called on every X event received on the vt window (and possibly other
489windows). Should only be used as a last resort. Most event structure
490members are not passed.
491
366=item on_focus_in $term 492=item on_focus_in $term
367 493
368Called whenever the window gets the keyboard focus, before rxvt-unicode 494Called whenever the window gets the keyboard focus, before rxvt-unicode
369does focus in processing. 495does focus in processing.
370 496
371=item on_focus_out $term 497=item on_focus_out $term
372 498
373Called wheneever the window loses keyboard focus, before rxvt-unicode does 499Called wheneever the window loses keyboard focus, before rxvt-unicode does
374focus out processing. 500focus out processing.
375 501
502=item on_configure_notify $term, $event
503
504=item on_property_notify $term, $event
505
376=item on_key_press $term, $event, $keysym, $octets 506=item on_key_press $term, $event, $keysym, $octets
377 507
378=item on_key_release $term, $event, $keysym 508=item on_key_release $term, $event, $keysym
379 509
380=item on_button_press $term, $event 510=item on_button_press $term, $event
389 519
390Called whenever the corresponding X event is received for the terminal If 520Called whenever the corresponding X event is received for the terminal If
391the hook returns true, then the even will be ignored by rxvt-unicode. 521the hook returns true, then the even will be ignored by rxvt-unicode.
392 522
393The event is a hash with most values as named by Xlib (see the XEvent 523The event is a hash with most values as named by Xlib (see the XEvent
394manpage), with the additional members C<row> and C<col>, which are the row 524manpage), with the additional members C<row> and C<col>, which are the
395and column under the mouse cursor. 525(real, not screen-based) row and column under the mouse cursor.
396 526
397C<on_key_press> additionally receives the string rxvt-unicode would 527C<on_key_press> additionally receives the string rxvt-unicode would
398output, if any, in locale-specific encoding. 528output, if any, in locale-specific encoding.
399 529
400subwindow. 530subwindow.
531
532=item on_client_message $term, $event
533
534=item on_wm_protocols $term, $event
535
536=item on_wm_delete_window $term, $event
537
538Called when various types of ClientMessage events are received (all with
539format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
401 540
402=back 541=back
403 542
404=cut 543=cut
405 544
411use Scalar::Util (); 550use Scalar::Util ();
412use List::Util (); 551use List::Util ();
413 552
414our $VERSION = 1; 553our $VERSION = 1;
415our $TERM; 554our $TERM;
555our @TERM_INIT;
556our @TERM_EXT;
416our @HOOKNAME; 557our @HOOKNAME;
417our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 558our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
418our %OPTION; 559our %OPTION;
419 560
420our $LIBDIR; 561our $LIBDIR;
421our $RESNAME; 562our $RESNAME;
422our $RESCLASS; 563our $RESCLASS;
423our $RXVTNAME; 564our $RXVTNAME;
424 565
566our $NOCHAR = chr 0xffff;
567
425=head2 Variables in the C<urxvt> Package 568=head2 Variables in the C<urxvt> Package
426 569
427=over 4 570=over 4
428 571
429=item $urxvt::LIBDIR 572=item $urxvt::LIBDIR
441 584
442=item $urxvt::TERM 585=item $urxvt::TERM
443 586
444The current terminal. This variable stores the current C<urxvt::term> 587The current terminal. This variable stores the current C<urxvt::term>
445object, whenever a callback/hook is executing. 588object, whenever a callback/hook is executing.
589
590=item @urxvt::TERM_INIT
591
592All coderefs in this array will be called as methods of the next newly
593created C<urxvt::term> object (during the C<on_init> phase). The array
594gets cleared before the codereferences that were in it are being executed,
595so coderefs can push themselves onto it again if they so desire.
596
597This complements to the perl-eval commandline option, but gets executed
598first.
599
600=item @urxvt::TERM_EXT
601
602Works similar to C<@TERM_INIT>, but contains perl package/class names, which
603get registered as normal extensions after calling the hooks in C<@TERM_INIT>
604but before other extensions. Gets cleared just like C<@TERM_INIT>.
446 605
447=back 606=back
448 607
449=head2 Functions in the C<urxvt> Package 608=head2 Functions in the C<urxvt> Package
450 609
465Using this function has the advantage that its output ends up in the 624Using this function has the advantage that its output ends up in the
466correct place, e.g. on stderr of the connecting urxvtc client. 625correct place, e.g. on stderr of the connecting urxvtc client.
467 626
468Messages have a size limit of 1023 bytes currently. 627Messages have a size limit of 1023 bytes currently.
469 628
470=item $is_safe = urxvt::safe
471
472Returns true when it is safe to do potentially unsafe things, such as
473evaluating perl code specified by the user. This is true when urxvt was
474started setuid or setgid.
475
476=item $time = urxvt::NOW 629=item $time = urxvt::NOW
477 630
478Returns the "current time" (as per the event loop). 631Returns the "current time" (as per the event loop).
479 632
480=item urxvt::CurrentTime 633=item urxvt::CurrentTime
481 634
482=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 635=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
483Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 636Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
484Button4Mask, Button5Mask, AnyModifier 637Button4Mask, Button5Mask, AnyModifier
638
639=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
640ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
641PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
642Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
643KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
644ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
645FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
646
647=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
648EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
649GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
650UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
651ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
652CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
653SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
485 654
486Various constants for use in X calls and event processing. 655Various constants for use in X calls and event processing.
487 656
488=back 657=back
489 658
540=back 709=back
541 710
542=cut 711=cut
543 712
544BEGIN { 713BEGIN {
545 urxvt->bootstrap;
546
547 # overwrite perl's warn 714 # overwrite perl's warn
548 *CORE::GLOBAL::warn = sub { 715 *CORE::GLOBAL::warn = sub {
549 my $msg = join "", @_; 716 my $msg = join "", @_;
550 $msg .= "\n" 717 $msg .= "\n"
551 unless $msg =~ /\n$/; 718 unless $msg =~ /\n$/;
552 urxvt::warn ($msg); 719 urxvt::warn ($msg);
553 }; 720 };
554
555 # %ENV is the original startup environment
556 delete $ENV{IFS};
557 delete $ENV{CDPATH};
558 delete $ENV{BASH_ENV};
559 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
560} 721}
561 722
562my @hook_count; 723no warnings 'utf8';
724
563my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 725my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
564 726
565sub verbose { 727sub verbose {
566 my ($level, $msg) = @_; 728 my ($level, $msg) = @_;
567 warn "$msg\n" if $level <= $verbosity; 729 warn "$msg\n" if $level <= $verbosity;
568} 730}
569 731
570my $extension_pkg = "extension0000";
571my %extension_pkg; 732my %extension_pkg;
572 733
573# load a single script into its own package, once only 734# load a single script into its own package, once only
574sub extension_package($) { 735sub extension_package($) {
575 my ($path) = @_; 736 my ($path) = @_;
576 737
577 $extension_pkg{$path} ||= do { 738 $extension_pkg{$path} ||= do {
578 my $pkg = "urxvt::" . ($extension_pkg++); 739 $path =~ /([^\/\\]+)$/;
740 my $pkg = $1;
741 $pkg =~ s/[^[:word:]]/_/g;
742 $pkg = "urxvt::ext::$pkg";
579 743
580 verbose 3, "loading extension '$path' into package '$pkg'"; 744 verbose 3, "loading extension '$path' into package '$pkg'";
581 745
582 open my $fh, "<:raw", $path 746 open my $fh, "<:raw", $path
583 or die "$path: $!"; 747 or die "$path: $!";
584 748
585 my $source = untaint 749 my $source =
586 "package $pkg; use strict; use utf8;\n" 750 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
587 . "use base urxvt::term::extension::;\n"
588 . "#line 1 \"$path\"\n{\n" 751 . "#line 1 \"$path\"\n{\n"
589 . (do { local $/; <$fh> }) 752 . (do { local $/; <$fh> })
590 . "\n};\n1"; 753 . "\n};\n1";
591 754
592 eval $source 755 eval $source
606 if ($htype == 0) { # INIT 769 if ($htype == 0) { # INIT
607 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 770 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
608 771
609 my %ext_arg; 772 my %ext_arg;
610 773
774 {
775 my @init = @TERM_INIT;
776 @TERM_INIT = ();
777 $_->($TERM) for @init;
778 my @pkg = @TERM_EXT;
779 @TERM_EXT = ();
780 $TERM->register_package ($_) for @pkg;
781 }
782
611 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 783 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
612 if ($_ eq "default") { 784 if ($_ eq "default") {
613 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 785 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
614 } elsif (/^-(.*)$/) { 786 } elsif (/^-(.*)$/) {
615 delete $ext_arg{$1}; 787 delete $ext_arg{$1};
616 } elsif (/^([^<]+)<(.*)>$/) { 788 } elsif (/^([^<]+)<(.*)>$/) {
617 push @{ $ext_arg{$1} }, $2; 789 push @{ $ext_arg{$1} }, $2;
618 } else { 790 } else {
641 if $verbosity >= 10; 813 if $verbosity >= 10;
642 814
643 keys %$cb; 815 keys %$cb;
644 816
645 while (my ($pkg, $cb) = each %$cb) { 817 while (my ($pkg, $cb) = each %$cb) {
646 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 818 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
647 and last; 819 $retval ||= $retval_;
648 820
649 if ($@) { 821 if ($@) {
650 $TERM->ungrab; # better to lose the grab than the session 822 $TERM->ungrab; # better to lose the grab than the session
651 warn $@; 823 warn $@;
652 } 824 }
655 verbose 11, "$HOOKNAME[$htype] returning <$retval>" 827 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
656 if $verbosity >= 11; 828 if $verbosity >= 11;
657 } 829 }
658 830
659 if ($htype == 1) { # DESTROY 831 if ($htype == 1) { # DESTROY
660 if (my $hook = delete $TERM->{_hook}) {
661 for my $htype (0..$#$hook) {
662 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
663 or set_should_invoke $htype, 0;
664 }
665 }
666
667 # clear package objects 832 # clear package objects
668 %$_ = () for values %{ $TERM->{_pkg} }; 833 %$_ = () for values %{ $TERM->{_pkg} };
669 834
670 # clear package 835 # clear package
671 %$TERM = (); 836 %$TERM = ();
672 } 837 }
673 838
674 $retval 839 $retval
675}
676
677sub exec_async(@) {
678 my $pid = fork;
679
680 return
681 if !defined $pid or $pid;
682
683 %ENV = %{ $TERM->env };
684
685 exec @_;
686 _exit 255;
687} 840}
688 841
689# urxvt::term::extension 842# urxvt::term::extension
690 843
691package urxvt::term::extension; 844package urxvt::term::extension;
697 while (my ($name, $cb) = each %hook) { 850 while (my ($name, $cb) = each %hook) {
698 my $htype = $HOOKTYPE{uc $name}; 851 my $htype = $HOOKTYPE{uc $name};
699 defined $htype 852 defined $htype
700 or Carp::croak "unsupported hook type '$name'"; 853 or Carp::croak "unsupported hook type '$name'";
701 854
855 $self->set_should_invoke ($htype, +1)
702 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 856 unless exists $self->{term}{_hook}[$htype]{$pkg};
703 $hook_count[$htype]++
704 or urxvt::set_should_invoke $htype, 1;
705 }
706 857
707 $self->{term}{_hook}[$htype]{$pkg} = $cb; 858 $self->{term}{_hook}[$htype]{$pkg} = $cb;
708 } 859 }
709} 860}
710 861
715 for my $name (@hook) { 866 for my $name (@hook) {
716 my $htype = $HOOKTYPE{uc $name}; 867 my $htype = $HOOKTYPE{uc $name};
717 defined $htype 868 defined $htype
718 or Carp::croak "unsupported hook type '$name'"; 869 or Carp::croak "unsupported hook type '$name'";
719 870
871 $self->set_should_invoke ($htype, -1)
720 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 872 if delete $self->{term}{_hook}[$htype]{$pkg};
721 --$hook_count[$htype]
722 or urxvt::set_should_invoke $htype, 0;
723 }
724 } 873 }
725} 874}
726 875
727our $AUTOLOAD; 876our $AUTOLOAD;
728 877
834# find on_xxx subs in the package and register them 983# find on_xxx subs in the package and register them
835# as hooks 984# as hooks
836sub register_package { 985sub register_package {
837 my ($self, $pkg, $argv) = @_; 986 my ($self, $pkg, $argv) = @_;
838 987
988 no strict 'refs';
989
990 urxvt::verbose 6, "register package $pkg to $self";
991
992 @{"$pkg\::ISA"} = urxvt::term::extension::;
993
839 my $proxy = bless { 994 my $proxy = bless {
840 _pkg => $pkg, 995 _pkg => $pkg,
841 argv => $argv, 996 argv => $argv,
842 }, $pkg; 997 }, $pkg;
843 Scalar::Util::weaken ($proxy->{term} = $self); 998 Scalar::Util::weaken ($proxy->{term} = $self);
874 1029
875Destroy the terminal object (close the window, free resources 1030Destroy the terminal object (close the window, free resources
876etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1031etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
877watchers (timers, io watchers) are still active. 1032watchers (timers, io watchers) are still active.
878 1033
1034=item $term->exec_async ($cmd[, @args])
1035
1036Works like the combination of the C<fork>/C<exec> builtins, which executes
1037("starts") programs in the background. This function takes care of setting
1038the user environment before exec'ing the command (e.g. C<PATH>) and should
1039be preferred over explicit calls to C<exec> or C<system>.
1040
1041Returns the pid of the subprocess or C<undef> on error.
1042
1043=cut
1044
1045sub exec_async {
1046 my $self = shift;
1047
1048 my $pid = fork;
1049
1050 return $pid
1051 if !defined $pid or $pid;
1052
1053 %ENV = %{ $self->env };
1054
1055 exec @_;
1056 urxvt::_exit 255;
1057}
1058
879=item $isset = $term->option ($optval[, $set]) 1059=item $isset = $term->option ($optval[, $set])
880 1060
881Returns true if the option specified by C<$optval> is enabled, and 1061Returns true if the option specified by C<$optval> is enabled, and
882optionally change it. All option values are stored by name in the hash 1062optionally change it. All option values are stored by name in the hash
883C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. 1063C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
885Here is a a likely non-exhaustive list of option names, please see the 1065Here is a a likely non-exhaustive list of option names, please see the
886source file F</src/optinc.h> to see the actual list: 1066source file F</src/optinc.h> to see the actual list:
887 1067
888 borderLess console cursorBlink cursorUnderline hold iconic insecure 1068 borderLess console cursorBlink cursorUnderline hold iconic insecure
889 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1069 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
890 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1070 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
891 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1071 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
892 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1072 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
893 tripleclickwords utmpInhibit visualBell 1073 transparent tripleclickwords utmpInhibit visualBell
894 1074
895=item $value = $term->resource ($name[, $newval]) 1075=item $value = $term->resource ($name[, $newval])
896 1076
897Returns the current resource value associated with a given name and 1077Returns the current resource value associated with a given name and
898optionally sets a new value. Setting values is most useful in the C<init> 1078optionally sets a new value. Setting values is most useful in the C<init>
915 1095
916 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1096 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
917 borderLess color cursorBlink cursorUnderline cutchars delete_key 1097 borderLess color cursorBlink cursorUnderline cutchars delete_key
918 display_name embed ext_bwidth fade font geometry hold iconName 1098 display_name embed ext_bwidth fade font geometry hold iconName
919 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1099 imFont imLocale inputMethod insecure int_bwidth intensityStyles
920 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1100 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
921 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1101 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
922 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1102 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
923 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1103 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
924 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1104 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
925 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1105 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
926 shade term_name title transparent transparent_all tripleclickwords 1106 secondaryScreen secondaryScroll selectstyle shade term_name title
927 utmpInhibit visualBell 1107 transient_for transparent transparent_all tripleclickwords utmpInhibit
1108 visualBell
928 1109
929=cut 1110=cut
930 1111
931sub resource($$;$) { 1112sub resource($$;$) {
932 my ($self, $name) = (shift, shift); 1113 my ($self, $name) = (shift, shift);
1106 1287
1107Normally its not a good idea to use this function, as programs might be 1288Normally its not a good idea to use this function, as programs might be
1108confused by changes in cursor position or scrolling. Its useful inside a 1289confused by changes in cursor position or scrolling. Its useful inside a
1109C<on_add_lines> hook, though. 1290C<on_add_lines> hook, though.
1110 1291
1292=item $term->scr_change_screen ($screen)
1293
1294Switch to given screen - 0 primary, 1 secondary.
1295
1111=item $term->cmd_parse ($octets) 1296=item $term->cmd_parse ($octets)
1112 1297
1113Similar to C<scr_add_lines>, but the argument must be in the 1298Similar to C<scr_add_lines>, but the argument must be in the
1114locale-specific encoding of the terminal and can contain command sequences 1299locale-specific encoding of the terminal and can contain command sequences
1115(escape codes) that will be interpreted. 1300(escape codes) that will be interpreted.
1133 1318
1134=item $windowid = $term->vt 1319=item $windowid = $term->vt
1135 1320
1136Return the window id of the terminal window. 1321Return the window id of the terminal window.
1137 1322
1323=item $term->vt_emask_add ($x_event_mask)
1324
1325Adds the specified events to the vt event mask. Useful e.g. when you want
1326to receive pointer events all the times:
1327
1328 $term->vt_emask_add (urxvt::PointerMotionMask);
1329
1138=item $window_width = $term->width 1330=item $window_width = $term->width
1139 1331
1140=item $window_height = $term->height 1332=item $window_height = $term->height
1141 1333
1142=item $font_width = $term->fwidth 1334=item $font_width = $term->fwidth
1155 1347
1156=item $max_scrollback = $term->saveLines 1348=item $max_scrollback = $term->saveLines
1157 1349
1158=item $nrow_plus_saveLines = $term->total_rows 1350=item $nrow_plus_saveLines = $term->total_rows
1159 1351
1160=item $lines_in_scrollback = $term->nsaved 1352=item $topmost_scrollback_row = $term->top_row
1161 1353
1162Return various integers describing terminal characteristics. 1354Return various integers describing terminal characteristics.
1163 1355
1164=item $x_display = $term->display_id 1356=item $x_display = $term->display_id
1165 1357
1191=item $modifiermask = $term->ModNumLockMask 1383=item $modifiermask = $term->ModNumLockMask
1192 1384
1193Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1385Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1194AltGr), the meta key (often Alt) and the num lock key, if applicable. 1386AltGr), the meta key (often Alt) and the num lock key, if applicable.
1195 1387
1388=item $screen = $term->current_screen
1389
1390Returns the currently displayed screen (0 primary, 1 secondary).
1391
1392=item $cursor_is_hidden = $term->hidden_cursor
1393
1394Returns wether the cursor is currently hidden or not.
1395
1196=item $view_start = $term->view_start ([$newvalue]) 1396=item $view_start = $term->view_start ([$newvalue])
1197 1397
1198Returns the negative row number of the topmost line. Minimum value is 1398Returns the row number of the topmost displayed line. Maximum value is
1199C<0>, which displays the normal terminal contents. Larger values scroll 1399C<0>, which displays the normal terminal contents. Lower values scroll
1200this many lines into the scrollback buffer. 1400this many lines into the scrollback buffer.
1201 1401
1202=item $term->want_refresh 1402=item $term->want_refresh
1203 1403
1204Requests a screen refresh. At the next opportunity, rxvt-unicode will 1404Requests a screen refresh. At the next opportunity, rxvt-unicode will
1219line, starting at column C<$start_col> (default C<0>), which is useful 1419line, starting at column C<$start_col> (default C<0>), which is useful
1220to replace only parts of a line. The font index in the rendition will 1420to replace only parts of a line. The font index in the rendition will
1221automatically be updated. 1421automatically be updated.
1222 1422
1223C<$text> is in a special encoding: tabs and wide characters that use more 1423C<$text> is in a special encoding: tabs and wide characters that use more
1224than one cell when displayed are padded with urxvt::NOCHAR characters 1424than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1225(C<chr 65535>). Characters with combining characters and other characters 1425characters. Characters with combining characters and other characters that
1226that do not fit into the normal tetx encoding will be replaced with 1426do not fit into the normal tetx encoding will be replaced with characters
1227characters in the private use area. 1427in the private use area.
1228 1428
1229You have to obey this encoding when changing text. The advantage is 1429You have to obey this encoding when changing text. The advantage is
1230that C<substr> and similar functions work on screen cells and not on 1430that C<substr> and similar functions work on screen cells and not on
1231characters. 1431characters.
1232 1432
1407 1607
1408Calls XUngrab for the most recent grab. Is called automatically on 1608Calls XUngrab for the most recent grab. Is called automatically on
1409evaluation errors, as it is better to lose the grab in the error case as 1609evaluation errors, as it is better to lose the grab in the error case as
1410the session. 1610the session.
1411 1611
1612=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1613
1614=item $atom_name = $term->XGetAtomName ($atom)
1615
1616=item @atoms = $term->XListProperties ($window)
1617
1618=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1619
1620=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1621
1622=item $term->XDeleteProperty ($window, $property)
1623
1624=item $window = $term->DefaultRootWindow
1625
1626=item $term->XReparentWindow ($window, $parent, [$x, $y])
1627
1628=item $term->XMapWindow ($window)
1629
1630=item $term->XUnmapWindow ($window)
1631
1632=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1633
1634=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1635
1636=item $term->XChangeInput ($window, $add_events[, $del_events])
1637
1638Various X or X-related functions. The C<$term> object only serves as
1639the source of the display, otherwise those functions map more-or-less
1640directory onto the X functions of the same name.
1641
1412=back 1642=back
1413 1643
1414=cut 1644=cut
1415 1645
1416package urxvt::popup; 1646package urxvt::popup;
1517 my $env = $self->{term}->env; 1747 my $env = $self->{term}->env;
1518 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. 1748 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1519 delete $env->{LC_ALL}; 1749 delete $env->{LC_ALL};
1520 $env->{LC_CTYPE} = $self->{term}->locale; 1750 $env->{LC_CTYPE} = $self->{term}->locale;
1521 1751
1522 urxvt::term->new ($env, $self->{term}->resource ("name"), 1752 urxvt::term->new ($env, "popup",
1523 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1753 "--perl-lib" => "", "--perl-ext-common" => "",
1754 "-pty-fd" => -1, "-sl" => 0,
1755 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1524 "--transient-for" => $self->{term}->parent, 1756 "--transient-for" => $self->{term}->parent,
1525 "-display" => $self->{term}->display_id, 1757 "-display" => $self->{term}->display_id,
1526 "-pe" => "urxvt-popup") 1758 "-pe" => "urxvt-popup")
1527 or die "unable to create popup window\n"; 1759 or die "unable to create popup window\n";
1528} 1760}
1533 delete $self->{term}{_destroy}{$self}; 1765 delete $self->{term}{_destroy}{$self};
1534 $self->{term}->ungrab; 1766 $self->{term}->ungrab;
1535} 1767}
1536 1768
1537=back 1769=back
1770
1771=cut
1772
1773package urxvt::watcher;
1774
1775@urxvt::timer::ISA = __PACKAGE__;
1776@urxvt::iow::ISA = __PACKAGE__;
1777@urxvt::pw::ISA = __PACKAGE__;
1778@urxvt::iw::ISA = __PACKAGE__;
1538 1779
1539=head2 The C<urxvt::timer> Class 1780=head2 The C<urxvt::timer> Class
1540 1781
1541This class implements timer watchers/events. Time is represented as a 1782This class implements timer watchers/events. Time is represented as a
1542fractional number of seconds since the epoch. Example: 1783fractional number of seconds since the epoch. Example:
1580Start the timer. 1821Start the timer.
1581 1822
1582=item $timer = $timer->start ($tstamp) 1823=item $timer = $timer->start ($tstamp)
1583 1824
1584Set the event trigger time to C<$tstamp> and start the timer. 1825Set the event trigger time to C<$tstamp> and start the timer.
1826
1827=item $timer = $timer->after ($delay)
1828
1829Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1585 1830
1586=item $timer = $timer->stop 1831=item $timer = $timer->stop
1587 1832
1588Stop the timer. 1833Stop the timer.
1589 1834
1636 1881
1637Stop watching for events on the given filehandle. 1882Stop watching for events on the given filehandle.
1638 1883
1639=back 1884=back
1640 1885
1886=head2 The C<urxvt::iw> Class
1887
1888This class implements idle watchers, that get called automatically when
1889the process is idle. They should return as fast as possible, after doing
1890some useful work.
1891
1892=over 4
1893
1894=item $iw = new urxvt::iw
1895
1896Create a new idle watcher object in stopped state.
1897
1898=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1899
1900Set the callback to be called when the watcher triggers.
1901
1902=item $timer = $timer->start
1903
1904Start the watcher.
1905
1906=item $timer = $timer->stop
1907
1908Stop the watcher.
1909
1910=back
1911
1912=head2 The C<urxvt::pw> Class
1913
1914This class implements process watchers. They create an event whenever a
1915process exits, after which they stop automatically.
1916
1917 my $pid = fork;
1918 ...
1919 $term->{pw} = urxvt::pw
1920 ->new
1921 ->start ($pid)
1922 ->cb (sub {
1923 my ($pw, $exit_status) = @_;
1924 ...
1925 });
1926
1927=over 4
1928
1929=item $pw = new urxvt::pw
1930
1931Create a new process watcher in stopped state.
1932
1933=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1934
1935Set the callback to be called when the timer triggers.
1936
1937=item $pw = $timer->start ($pid)
1938
1939Tells the wqtcher to start watching for process C<$pid>.
1940
1941=item $pw = $pw->stop
1942
1943Stop the watcher.
1944
1945=back
1946
1641=head1 ENVIRONMENT 1947=head1 ENVIRONMENT
1642 1948
1643=head2 URXVT_PERL_VERBOSITY 1949=head2 URXVT_PERL_VERBOSITY
1644 1950
1645This variable controls the verbosity level of the perl extension. Higher 1951This variable controls the verbosity level of the perl extension. Higher

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