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Revision 1.88 by root, Thu Jan 12 12:05:28 2006 UTC vs.
Revision 1.125 by root, Sun Jan 22 20:39:47 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 tty is in ICANON state.
145
146=item - the text cursor is visible.
147
148=item - the primary screen is currently being displayed.
149
150=item - the mouse is on the same (multi-row-) line as the text cursor.
151
152=back
153
154The normal selection mechanism isn't disabled, so quick successive clicks
155might interfere with selection creation in harmless ways.
156
109=item selection-autotransform 157=item selection-autotransform
110 158
111This selection allows you to do automatic transforms on a selection 159This selection allows you to do automatic transforms on a selection
112whenever a selection is made. 160whenever a selection is made.
113 161
117 URxvt.selection-autotransform.0: transform 165 URxvt.selection-autotransform.0: transform
118 URxvt.selection-autotransform.1: transform 166 URxvt.selection-autotransform.1: transform
119 ... 167 ...
120 168
121For example, the following will transform selections of the form 169For example, the following will transform selections of the form
122C<word:number> into C<vi +$number $word>: 170C<filename:number>, often seen in compiler messages, into C<vi +$filename
171$word>:
123 172
124 URxvt.selection-autotransform.0: s/^(S+):(d+):?$/vi +$2 $1\\x0d/ 173 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
125 174
126And this example matches the same,but replaces it with vi-commands you can 175And this example matches the same,but replaces it with vi-commands you can
127paste directory into your (vi :) editor: 176paste directly into your (vi :) editor:
128 177
129 URxvt.selection-autotransform.0: s/^(S+):(d+):?$/\\x1b:e $1\\x0d:$2\\x0d/ 178 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
179
180Of course, this can be modified to suit your needs and your editor :)
181
182To expand the example above to typical perl error messages ("XXX at
183FILENAME line YYY."), you need a slightly more elaborate solution:
184
185 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
186 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
187
188The first line tells the selection code to treat the unchanging part of
189every error message as a selection pattern, and the second line transforms
190the message into vi commands to load the file.
191
192=item tabbed
193
194This transforms the terminal into a tabbar with additional terminals, that
195is, it implements what is commonly refered to as "tabbed terminal". The topmost line
196displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
197button per tab.
198
199Clicking a button will activate that tab. Pressing B<Shift-Left> and
200B<Shift-Right> will switch to the tab left or right of the current one,
201while B<Shift-Down> creates a new tab.
130 202
131=item mark-urls 203=item mark-urls
132 204
133Uses per-line display filtering (C<on_line_update>) to underline urls and 205Uses per-line display filtering (C<on_line_update>) to underline urls and
134make them clickable. When middle-clicked, the program specified in the 206make them clickable. When middle-clicked, the program specified in the
135resource C<urlLauncher> (default C<x-www-browser>) will be started with 207resource C<urlLauncher> (default C<x-www-browser>) will be started with
136the URL as first argument. 208the URL as first argument.
137 209
210=item automove-background
211
212This is basically a one-line extension that dynamically changes the background pixmap offset
213to the window position, in effect creating the same effect as pseudo transparency with
214a custom pixmap. No scaling is supported in this mode. Exmaple:
215
216 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
217
138=item block-graphics-to-ascii 218=item block-graphics-to-ascii
139 219
140A not very useful example of filtering all text output to the terminal, 220A not very useful example of filtering all text output to the terminal,
141by replacing all line-drawing characters (U+2500 .. U+259F) by a 221by replacing all line-drawing characters (U+2500 .. U+259F) by a
142similar-looking ascii character. 222similar-looking ascii character.
148=item example-refresh-hooks 228=item example-refresh-hooks
149 229
150Displays a very simple digital clock in the upper right corner of the 230Displays a very simple digital clock in the upper right corner of the
151window. Illustrates overwriting the refresh callbacks to create your own 231window. Illustrates overwriting the refresh callbacks to create your own
152overlays or changes. 232overlays or changes.
233
234=item selection-pastebin
235
236This is a little rarely useful extension that Uploads the selection as
237textfile to a remote site (or does other things). (The implementation is
238not currently secure for use in a multiuser environment as it writes to
239F</tmp> directly.).
240
241It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
242i.e.
243
244 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
245
246Pressing this combination runs a command with C<%> replaced by the name of
247the textfile. This command can be set via a resource:
248
249 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
250
251And the default is likely not useful to anybody but the few people around
252here :)
253
254The name of the textfile is the hex encoded md5 sum of the selection, so
255the same content should lead to the same filename.
256
257After a successful upload the selection will be replaced by the text given
258in the C<selection-pastebin-url> resource (again, the % is the placeholder
259for the filename):
260
261 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
153 262
154=back 263=back
155 264
156=head1 API DOCUMENTATION 265=head1 API DOCUMENTATION
157 266
230called whenever the relevant event happens. 339called whenever the relevant event happens.
231 340
232The first argument passed to them is an extension oject as described in 341The first argument passed to them is an extension oject as described in
233the in the C<Extension Objects> section. 342the in the C<Extension Objects> section.
234 343
235B<All> of these hooks must return a boolean value. If it is true, then the 344B<All> of these hooks must return a boolean value. If any of the called
236event counts as being I<consumed>, and the invocation of other hooks is 345hooks returns true, then the event counts as being I<consumed>, and the
237skipped, and the relevant action might not be carried out by the C++ code. 346relevant action might not be carried out by the C++ code.
238 347
239I<< When in doubt, return a false value (preferably C<()>). >> 348I<< When in doubt, return a false value (preferably C<()>). >>
240 349
241=over 4 350=over 4
242 351
243=item on_init $term 352=item on_init $term
244 353
245Called after a new terminal object has been initialized, but before 354Called after a new terminal object has been initialized, but before
246windows are created or the command gets run. Most methods are unsafe to 355windows are created or the command gets run. Most methods are unsafe to
247call or deliver senseless data, as terminal size and other characteristics 356call or deliver senseless data, as terminal size and other characteristics
248have not yet been determined. You can safely query and change resources, 357have not yet been determined. You can safely query and change resources
249though. 358and options, though. For many purposes the C<on_start> hook is a better
359place.
360
361=item on_start $term
362
363Called at the very end of initialisation of a new terminal, just before
364trying to map (display) the toplevel and returning to the mainloop.
365
366=item on_destroy $term
367
368Called whenever something tries to destroy terminal, before doing anything
369yet. If this hook returns true, then destruction is skipped, but this is
370rarely a good idea.
250 371
251=item on_reset $term 372=item on_reset $term
252 373
253Called after the screen is "reset" for any reason, such as resizing or 374Called after the screen is "reset" for any reason, such as resizing or
254control sequences. Here is where you can react on changes to size-related 375control sequences. Here is where you can react on changes to size-related
255variables. 376variables.
256 377
257=item on_start $term 378=item on_child_start $term, $pid
258 379
259Called at the very end of initialisation of a new terminal, just before 380Called just after the child process has been C<fork>ed.
260returning to the mainloop. 381
382=item on_child_exit $term, $status
383
384Called just after the child process has exited. C<$status> is the status
385from C<waitpid>.
261 386
262=item on_sel_make $term, $eventtime 387=item on_sel_make $term, $eventtime
263 388
264Called whenever a selection has been made by the user, but before the 389Called whenever a selection has been made by the user, but before the
265selection text is copied, so changes to the beginning, end or type of the 390selection text is copied, so changes to the beginning, end or type of the
358 483
359Called whenever the user presses a key combination that has a 484Called whenever the user presses a key combination that has a
360C<perl:string> action bound to it (see description of the B<keysym> 485C<perl:string> action bound to it (see description of the B<keysym>
361resource in the @@RXVT_NAME@@(1) manpage). 486resource in the @@RXVT_NAME@@(1) manpage).
362 487
488=item on_x_event $term, $event
489
490Called on every X event received on the vt window (and possibly other
491windows). Should only be used as a last resort. Most event structure
492members are not passed.
493
363=item on_focus_in $term 494=item on_focus_in $term
364 495
365Called whenever the window gets the keyboard focus, before rxvt-unicode 496Called whenever the window gets the keyboard focus, before rxvt-unicode
366does focus in processing. 497does focus in processing.
367 498
368=item on_focus_out $term 499=item on_focus_out $term
369 500
370Called wheneever the window loses keyboard focus, before rxvt-unicode does 501Called wheneever the window loses keyboard focus, before rxvt-unicode does
371focus out processing. 502focus out processing.
372 503
504=item on_configure_notify $term, $event
505
506=item on_property_notify $term, $event
507
373=item on_key_press $term, $event, $keysym, $octets 508=item on_key_press $term, $event, $keysym, $octets
374 509
375=item on_key_release $term, $event, $keysym 510=item on_key_release $term, $event, $keysym
376 511
377=item on_button_press $term, $event 512=item on_button_press $term, $event
386 521
387Called whenever the corresponding X event is received for the terminal If 522Called whenever the corresponding X event is received for the terminal If
388the hook returns true, then the even will be ignored by rxvt-unicode. 523the hook returns true, then the even will be ignored by rxvt-unicode.
389 524
390The event is a hash with most values as named by Xlib (see the XEvent 525The event is a hash with most values as named by Xlib (see the XEvent
391manpage), with the additional members C<row> and C<col>, which are the row 526manpage), with the additional members C<row> and C<col>, which are the
392and column under the mouse cursor. 527(real, not screen-based) row and column under the mouse cursor.
393 528
394C<on_key_press> additionally receives the string rxvt-unicode would 529C<on_key_press> additionally receives the string rxvt-unicode would
395output, if any, in locale-specific encoding. 530output, if any, in locale-specific encoding.
396 531
397subwindow. 532subwindow.
533
534=item on_client_message $term, $event
535
536=item on_wm_protocols $term, $event
537
538=item on_wm_delete_window $term, $event
539
540Called when various types of ClientMessage events are received (all with
541format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
398 542
399=back 543=back
400 544
401=cut 545=cut
402 546
408use Scalar::Util (); 552use Scalar::Util ();
409use List::Util (); 553use List::Util ();
410 554
411our $VERSION = 1; 555our $VERSION = 1;
412our $TERM; 556our $TERM;
557our @TERM_INIT;
558our @TERM_EXT;
413our @HOOKNAME; 559our @HOOKNAME;
414our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 560our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
415our %OPTION; 561our %OPTION;
416 562
417our $LIBDIR; 563our $LIBDIR;
418our $RESNAME; 564our $RESNAME;
419our $RESCLASS; 565our $RESCLASS;
420our $RXVTNAME; 566our $RXVTNAME;
421 567
568our $NOCHAR = chr 0xffff;
569
422=head2 Variables in the C<urxvt> Package 570=head2 Variables in the C<urxvt> Package
423 571
424=over 4 572=over 4
425 573
426=item $urxvt::LIBDIR 574=item $urxvt::LIBDIR
438 586
439=item $urxvt::TERM 587=item $urxvt::TERM
440 588
441The current terminal. This variable stores the current C<urxvt::term> 589The current terminal. This variable stores the current C<urxvt::term>
442object, whenever a callback/hook is executing. 590object, whenever a callback/hook is executing.
591
592=item @urxvt::TERM_INIT
593
594All coderefs in this array will be called as methods of the next newly
595created C<urxvt::term> object (during the C<on_init> phase). The array
596gets cleared before the codereferences that were in it are being executed,
597so coderefs can push themselves onto it again if they so desire.
598
599This complements to the perl-eval commandline option, but gets executed
600first.
601
602=item @urxvt::TERM_EXT
603
604Works similar to C<@TERM_INIT>, but contains perl package/class names, which
605get registered as normal extensions after calling the hooks in C<@TERM_INIT>
606but before other extensions. Gets cleared just like C<@TERM_INIT>.
443 607
444=back 608=back
445 609
446=head2 Functions in the C<urxvt> Package 610=head2 Functions in the C<urxvt> Package
447 611
462Using this function has the advantage that its output ends up in the 626Using this function has the advantage that its output ends up in the
463correct place, e.g. on stderr of the connecting urxvtc client. 627correct place, e.g. on stderr of the connecting urxvtc client.
464 628
465Messages have a size limit of 1023 bytes currently. 629Messages have a size limit of 1023 bytes currently.
466 630
467=item $is_safe = urxvt::safe
468
469Returns true when it is safe to do potentially unsafe things, such as
470evaluating perl code specified by the user. This is true when urxvt was
471started setuid or setgid.
472
473=item $time = urxvt::NOW 631=item $time = urxvt::NOW
474 632
475Returns the "current time" (as per the event loop). 633Returns the "current time" (as per the event loop).
476 634
477=item urxvt::CurrentTime 635=item urxvt::CurrentTime
478 636
479=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 637=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
480Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 638Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
481Button4Mask, Button5Mask, AnyModifier 639Button4Mask, Button5Mask, AnyModifier
640
641=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
642ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
643PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
644Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
645KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
646ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
647FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
648
649=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
650EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
651GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
652UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
653ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
654CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
655SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
482 656
483Various constants for use in X calls and event processing. 657Various constants for use in X calls and event processing.
484 658
485=back 659=back
486 660
537=back 711=back
538 712
539=cut 713=cut
540 714
541BEGIN { 715BEGIN {
542 urxvt->bootstrap;
543
544 # overwrite perl's warn 716 # overwrite perl's warn
545 *CORE::GLOBAL::warn = sub { 717 *CORE::GLOBAL::warn = sub {
546 my $msg = join "", @_; 718 my $msg = join "", @_;
547 $msg .= "\n" 719 $msg .= "\n"
548 unless $msg =~ /\n$/; 720 unless $msg =~ /\n$/;
549 urxvt::warn ($msg); 721 urxvt::warn ($msg);
550 }; 722 };
551
552 # %ENV is the original startup environment
553 delete $ENV{IFS};
554 delete $ENV{CDPATH};
555 delete $ENV{BASH_ENV};
556 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
557} 723}
558 724
559my @hook_count; 725no warnings 'utf8';
726
560my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 727my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
561 728
562sub verbose { 729sub verbose {
563 my ($level, $msg) = @_; 730 my ($level, $msg) = @_;
564 warn "$msg\n" if $level <= $verbosity; 731 warn "$msg\n" if $level <= $verbosity;
565} 732}
566 733
567my $extension_pkg = "extension0000";
568my %extension_pkg; 734my %extension_pkg;
569 735
570# load a single script into its own package, once only 736# load a single script into its own package, once only
571sub extension_package($) { 737sub extension_package($) {
572 my ($path) = @_; 738 my ($path) = @_;
573 739
574 $extension_pkg{$path} ||= do { 740 $extension_pkg{$path} ||= do {
575 my $pkg = "urxvt::" . ($extension_pkg++); 741 $path =~ /([^\/\\]+)$/;
742 my $pkg = $1;
743 $pkg =~ s/[^[:word:]]/_/g;
744 $pkg = "urxvt::ext::$pkg";
576 745
577 verbose 3, "loading extension '$path' into package '$pkg'"; 746 verbose 3, "loading extension '$path' into package '$pkg'";
578 747
579 open my $fh, "<:raw", $path 748 open my $fh, "<:raw", $path
580 or die "$path: $!"; 749 or die "$path: $!";
581 750
582 my $source = untaint 751 my $source =
583 "package $pkg; use strict; use utf8;\n" 752 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
584 . "use base urxvt::term::extension::;\n"
585 . "#line 1 \"$path\"\n{\n" 753 . "#line 1 \"$path\"\n{\n"
586 . (do { local $/; <$fh> }) 754 . (do { local $/; <$fh> })
587 . "\n};\n1"; 755 . "\n};\n1";
588 756
589 eval $source 757 eval $source
603 if ($htype == 0) { # INIT 771 if ($htype == 0) { # INIT
604 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 772 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
605 773
606 my %ext_arg; 774 my %ext_arg;
607 775
776 {
777 my @init = @TERM_INIT;
778 @TERM_INIT = ();
779 $_->($TERM) for @init;
780 my @pkg = @TERM_EXT;
781 @TERM_EXT = ();
782 $TERM->register_package ($_) for @pkg;
783 }
784
608 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 785 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
609 if ($_ eq "default") { 786 if ($_ eq "default") {
610 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 787 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
611 } elsif (/^-(.*)$/) { 788 } elsif (/^-(.*)$/) {
612 delete $ext_arg{$1}; 789 delete $ext_arg{$1};
613 } elsif (/^([^<]+)<(.*)>$/) { 790 } elsif (/^([^<]+)<(.*)>$/) {
614 push @{ $ext_arg{$1} }, $2; 791 push @{ $ext_arg{$1} }, $2;
615 } else { 792 } else {
638 if $verbosity >= 10; 815 if $verbosity >= 10;
639 816
640 keys %$cb; 817 keys %$cb;
641 818
642 while (my ($pkg, $cb) = each %$cb) { 819 while (my ($pkg, $cb) = each %$cb) {
643 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 820 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
644 and last; 821 $retval ||= $retval_;
645 822
646 if ($@) { 823 if ($@) {
647 $TERM->ungrab; # better to lose the grab than the session 824 $TERM->ungrab; # better to lose the grab than the session
648 warn $@; 825 warn $@;
649 } 826 }
652 verbose 11, "$HOOKNAME[$htype] returning <$retval>" 829 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
653 if $verbosity >= 11; 830 if $verbosity >= 11;
654 } 831 }
655 832
656 if ($htype == 1) { # DESTROY 833 if ($htype == 1) { # DESTROY
657 if (my $hook = delete $TERM->{_hook}) {
658 for my $htype (0..$#$hook) {
659 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
660 or set_should_invoke $htype, 0;
661 }
662 }
663
664 # clear package objects 834 # clear package objects
665 %$_ = () for values %{ $TERM->{_pkg} }; 835 %$_ = () for values %{ $TERM->{_pkg} };
666 836
667 # clear package 837 # clear package
668 %$TERM = (); 838 %$TERM = ();
669 } 839 }
670 840
671 $retval 841 $retval
672}
673
674sub exec_async(@) {
675 my $pid = fork;
676
677 return
678 if !defined $pid or $pid;
679
680 %ENV = %{ $TERM->env };
681
682 exec @_;
683 _exit 255;
684} 842}
685 843
686# urxvt::term::extension 844# urxvt::term::extension
687 845
688package urxvt::term::extension; 846package urxvt::term::extension;
694 while (my ($name, $cb) = each %hook) { 852 while (my ($name, $cb) = each %hook) {
695 my $htype = $HOOKTYPE{uc $name}; 853 my $htype = $HOOKTYPE{uc $name};
696 defined $htype 854 defined $htype
697 or Carp::croak "unsupported hook type '$name'"; 855 or Carp::croak "unsupported hook type '$name'";
698 856
857 $self->set_should_invoke ($htype, +1)
699 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 858 unless exists $self->{term}{_hook}[$htype]{$pkg};
700 $hook_count[$htype]++
701 or urxvt::set_should_invoke $htype, 1;
702 }
703 859
704 $self->{term}{_hook}[$htype]{$pkg} = $cb; 860 $self->{term}{_hook}[$htype]{$pkg} = $cb;
705 } 861 }
706} 862}
707 863
712 for my $name (@hook) { 868 for my $name (@hook) {
713 my $htype = $HOOKTYPE{uc $name}; 869 my $htype = $HOOKTYPE{uc $name};
714 defined $htype 870 defined $htype
715 or Carp::croak "unsupported hook type '$name'"; 871 or Carp::croak "unsupported hook type '$name'";
716 872
873 $self->set_should_invoke ($htype, -1)
717 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 874 if delete $self->{term}{_hook}[$htype]{$pkg};
718 --$hook_count[$htype]
719 or urxvt::set_should_invoke $htype, 0;
720 }
721 } 875 }
722} 876}
723 877
724our $AUTOLOAD; 878our $AUTOLOAD;
725 879
831# find on_xxx subs in the package and register them 985# find on_xxx subs in the package and register them
832# as hooks 986# as hooks
833sub register_package { 987sub register_package {
834 my ($self, $pkg, $argv) = @_; 988 my ($self, $pkg, $argv) = @_;
835 989
990 no strict 'refs';
991
992 urxvt::verbose 6, "register package $pkg to $self";
993
994 @{"$pkg\::ISA"} = urxvt::term::extension::;
995
836 my $proxy = bless { 996 my $proxy = bless {
837 _pkg => $pkg, 997 _pkg => $pkg,
838 argv => $argv, 998 argv => $argv,
839 }, $pkg; 999 }, $pkg;
840 Scalar::Util::weaken ($proxy->{term} = $self); 1000 Scalar::Util::weaken ($proxy->{term} = $self);
871 1031
872Destroy the terminal object (close the window, free resources 1032Destroy the terminal object (close the window, free resources
873etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1033etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
874watchers (timers, io watchers) are still active. 1034watchers (timers, io watchers) are still active.
875 1035
1036=item $term->exec_async ($cmd[, @args])
1037
1038Works like the combination of the C<fork>/C<exec> builtins, which executes
1039("starts") programs in the background. This function takes care of setting
1040the user environment before exec'ing the command (e.g. C<PATH>) and should
1041be preferred over explicit calls to C<exec> or C<system>.
1042
1043Returns the pid of the subprocess or C<undef> on error.
1044
1045=cut
1046
1047sub exec_async {
1048 my $self = shift;
1049
1050 my $pid = fork;
1051
1052 return $pid
1053 if !defined $pid or $pid;
1054
1055 %ENV = %{ $self->env };
1056
1057 exec @_;
1058 urxvt::_exit 255;
1059}
1060
876=item $isset = $term->option ($optval[, $set]) 1061=item $isset = $term->option ($optval[, $set])
877 1062
878Returns true if the option specified by C<$optval> is enabled, and 1063Returns true if the option specified by C<$optval> is enabled, and
879optionally change it. All option values are stored by name in the hash 1064optionally change it. All option values are stored by name in the hash
880C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. 1065C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
882Here is a a likely non-exhaustive list of option names, please see the 1067Here is a a likely non-exhaustive list of option names, please see the
883source file F</src/optinc.h> to see the actual list: 1068source file F</src/optinc.h> to see the actual list:
884 1069
885 borderLess console cursorBlink cursorUnderline hold iconic insecure 1070 borderLess console cursorBlink cursorUnderline hold iconic insecure
886 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1071 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
887 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1072 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
888 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1073 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
889 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1074 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
890 tripleclickwords utmpInhibit visualBell 1075 transparent tripleclickwords utmpInhibit visualBell
891 1076
892=item $value = $term->resource ($name[, $newval]) 1077=item $value = $term->resource ($name[, $newval])
893 1078
894Returns the current resource value associated with a given name and 1079Returns the current resource value associated with a given name and
895optionally sets a new value. Setting values is most useful in the C<init> 1080optionally sets a new value. Setting values is most useful in the C<init>
912 1097
913 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1098 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
914 borderLess color cursorBlink cursorUnderline cutchars delete_key 1099 borderLess color cursorBlink cursorUnderline cutchars delete_key
915 display_name embed ext_bwidth fade font geometry hold iconName 1100 display_name embed ext_bwidth fade font geometry hold iconName
916 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1101 imFont imLocale inputMethod insecure int_bwidth intensityStyles
917 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1102 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
918 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1103 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
919 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1104 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
920 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1105 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
921 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1106 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
922 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1107 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
923 shade term_name title transparent transparent_all tripleclickwords 1108 secondaryScreen secondaryScroll selectstyle shade term_name title
924 utmpInhibit visualBell 1109 transient_for transparent transparent_all tripleclickwords utmpInhibit
1110 visualBell
925 1111
926=cut 1112=cut
927 1113
928sub resource($$;$) { 1114sub resource($$;$) {
929 my ($self, $name) = (shift, shift); 1115 my ($self, $name) = (shift, shift);
1103 1289
1104Normally its not a good idea to use this function, as programs might be 1290Normally its not a good idea to use this function, as programs might be
1105confused by changes in cursor position or scrolling. Its useful inside a 1291confused by changes in cursor position or scrolling. Its useful inside a
1106C<on_add_lines> hook, though. 1292C<on_add_lines> hook, though.
1107 1293
1294=item $term->scr_change_screen ($screen)
1295
1296Switch to given screen - 0 primary, 1 secondary.
1297
1108=item $term->cmd_parse ($octets) 1298=item $term->cmd_parse ($octets)
1109 1299
1110Similar to C<scr_add_lines>, but the argument must be in the 1300Similar to C<scr_add_lines>, but the argument must be in the
1111locale-specific encoding of the terminal and can contain command sequences 1301locale-specific encoding of the terminal and can contain command sequences
1112(escape codes) that will be interpreted. 1302(escape codes) that will be interpreted.
1122Replaces the event mask of the pty watcher by the given event mask. Can 1312Replaces the event mask of the pty watcher by the given event mask. Can
1123be used to suppress input and output handling to the pty/tty. See the 1313be used to suppress input and output handling to the pty/tty. See the
1124description of C<< urxvt::timer->events >>. Make sure to always restore 1314description of C<< urxvt::timer->events >>. Make sure to always restore
1125the previous value. 1315the previous value.
1126 1316
1317=item $fd = $term->pty_fd
1318
1319Returns the master file descriptor for the pty in use, or C<-1> if no pty
1320is used.
1321
1127=item $windowid = $term->parent 1322=item $windowid = $term->parent
1128 1323
1129Return the window id of the toplevel window. 1324Return the window id of the toplevel window.
1130 1325
1131=item $windowid = $term->vt 1326=item $windowid = $term->vt
1132 1327
1133Return the window id of the terminal window. 1328Return the window id of the terminal window.
1134 1329
1330=item $term->vt_emask_add ($x_event_mask)
1331
1332Adds the specified events to the vt event mask. Useful e.g. when you want
1333to receive pointer events all the times:
1334
1335 $term->vt_emask_add (urxvt::PointerMotionMask);
1336
1135=item $window_width = $term->width 1337=item $window_width = $term->width
1136 1338
1137=item $window_height = $term->height 1339=item $window_height = $term->height
1138 1340
1139=item $font_width = $term->fwidth 1341=item $font_width = $term->fwidth
1152 1354
1153=item $max_scrollback = $term->saveLines 1355=item $max_scrollback = $term->saveLines
1154 1356
1155=item $nrow_plus_saveLines = $term->total_rows 1357=item $nrow_plus_saveLines = $term->total_rows
1156 1358
1157=item $lines_in_scrollback = $term->nsaved 1359=item $topmost_scrollback_row = $term->top_row
1158 1360
1159Return various integers describing terminal characteristics. 1361Return various integers describing terminal characteristics.
1160 1362
1161=item $x_display = $term->display_id 1363=item $x_display = $term->display_id
1162 1364
1188=item $modifiermask = $term->ModNumLockMask 1390=item $modifiermask = $term->ModNumLockMask
1189 1391
1190Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1392Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1191AltGr), the meta key (often Alt) and the num lock key, if applicable. 1393AltGr), the meta key (often Alt) and the num lock key, if applicable.
1192 1394
1395=item $screen = $term->current_screen
1396
1397Returns the currently displayed screen (0 primary, 1 secondary).
1398
1399=item $cursor_is_hidden = $term->hidden_cursor
1400
1401Returns wether the cursor is currently hidden or not.
1402
1193=item $view_start = $term->view_start ([$newvalue]) 1403=item $view_start = $term->view_start ([$newvalue])
1194 1404
1195Returns the negative row number of the topmost line. Minimum value is 1405Returns the row number of the topmost displayed line. Maximum value is
1196C<0>, which displays the normal terminal contents. Larger values scroll 1406C<0>, which displays the normal terminal contents. Lower values scroll
1197this many lines into the scrollback buffer. 1407this many lines into the scrollback buffer.
1198 1408
1199=item $term->want_refresh 1409=item $term->want_refresh
1200 1410
1201Requests a screen refresh. At the next opportunity, rxvt-unicode will 1411Requests a screen refresh. At the next opportunity, rxvt-unicode will
1216line, starting at column C<$start_col> (default C<0>), which is useful 1426line, starting at column C<$start_col> (default C<0>), which is useful
1217to replace only parts of a line. The font index in the rendition will 1427to replace only parts of a line. The font index in the rendition will
1218automatically be updated. 1428automatically be updated.
1219 1429
1220C<$text> is in a special encoding: tabs and wide characters that use more 1430C<$text> is in a special encoding: tabs and wide characters that use more
1221than one cell when displayed are padded with urxvt::NOCHAR characters 1431than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1222(C<chr 65535>). Characters with combining characters and other characters 1432characters. Characters with combining characters and other characters that
1223that do not fit into the normal tetx encoding will be replaced with 1433do not fit into the normal tetx encoding will be replaced with characters
1224characters in the private use area. 1434in the private use area.
1225 1435
1226You have to obey this encoding when changing text. The advantage is 1436You have to obey this encoding when changing text. The advantage is
1227that C<substr> and similar functions work on screen cells and not on 1437that C<substr> and similar functions work on screen cells and not on
1228characters. 1438characters.
1229 1439
1404 1614
1405Calls XUngrab for the most recent grab. Is called automatically on 1615Calls XUngrab for the most recent grab. Is called automatically on
1406evaluation errors, as it is better to lose the grab in the error case as 1616evaluation errors, as it is better to lose the grab in the error case as
1407the session. 1617the session.
1408 1618
1619=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1620
1621=item $atom_name = $term->XGetAtomName ($atom)
1622
1623=item @atoms = $term->XListProperties ($window)
1624
1625=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1626
1627=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1628
1629=item $term->XDeleteProperty ($window, $property)
1630
1631=item $window = $term->DefaultRootWindow
1632
1633=item $term->XReparentWindow ($window, $parent, [$x, $y])
1634
1635=item $term->XMapWindow ($window)
1636
1637=item $term->XUnmapWindow ($window)
1638
1639=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1640
1641=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1642
1643=item $term->XChangeInput ($window, $add_events[, $del_events])
1644
1645Various X or X-related functions. The C<$term> object only serves as
1646the source of the display, otherwise those functions map more-or-less
1647directory onto the X functions of the same name.
1648
1409=back 1649=back
1410 1650
1411=cut 1651=cut
1412 1652
1413package urxvt::popup; 1653package urxvt::popup;
1514 my $env = $self->{term}->env; 1754 my $env = $self->{term}->env;
1515 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. 1755 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1516 delete $env->{LC_ALL}; 1756 delete $env->{LC_ALL};
1517 $env->{LC_CTYPE} = $self->{term}->locale; 1757 $env->{LC_CTYPE} = $self->{term}->locale;
1518 1758
1519 urxvt::term->new ($env, $self->{term}->resource ("name"), 1759 urxvt::term->new ($env, "popup",
1520 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1760 "--perl-lib" => "", "--perl-ext-common" => "",
1761 "-pty-fd" => -1, "-sl" => 0,
1762 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1521 "--transient-for" => $self->{term}->parent, 1763 "--transient-for" => $self->{term}->parent,
1522 "-display" => $self->{term}->display_id, 1764 "-display" => $self->{term}->display_id,
1523 "-pe" => "urxvt-popup") 1765 "-pe" => "urxvt-popup")
1524 or die "unable to create popup window\n"; 1766 or die "unable to create popup window\n";
1525} 1767}
1530 delete $self->{term}{_destroy}{$self}; 1772 delete $self->{term}{_destroy}{$self};
1531 $self->{term}->ungrab; 1773 $self->{term}->ungrab;
1532} 1774}
1533 1775
1534=back 1776=back
1777
1778=cut
1779
1780package urxvt::watcher;
1781
1782@urxvt::timer::ISA = __PACKAGE__;
1783@urxvt::iow::ISA = __PACKAGE__;
1784@urxvt::pw::ISA = __PACKAGE__;
1785@urxvt::iw::ISA = __PACKAGE__;
1535 1786
1536=head2 The C<urxvt::timer> Class 1787=head2 The C<urxvt::timer> Class
1537 1788
1538This class implements timer watchers/events. Time is represented as a 1789This class implements timer watchers/events. Time is represented as a
1539fractional number of seconds since the epoch. Example: 1790fractional number of seconds since the epoch. Example:
1577Start the timer. 1828Start the timer.
1578 1829
1579=item $timer = $timer->start ($tstamp) 1830=item $timer = $timer->start ($tstamp)
1580 1831
1581Set the event trigger time to C<$tstamp> and start the timer. 1832Set the event trigger time to C<$tstamp> and start the timer.
1833
1834=item $timer = $timer->after ($delay)
1835
1836Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1582 1837
1583=item $timer = $timer->stop 1838=item $timer = $timer->stop
1584 1839
1585Stop the timer. 1840Stop the timer.
1586 1841
1633 1888
1634Stop watching for events on the given filehandle. 1889Stop watching for events on the given filehandle.
1635 1890
1636=back 1891=back
1637 1892
1893=head2 The C<urxvt::iw> Class
1894
1895This class implements idle watchers, that get called automatically when
1896the process is idle. They should return as fast as possible, after doing
1897some useful work.
1898
1899=over 4
1900
1901=item $iw = new urxvt::iw
1902
1903Create a new idle watcher object in stopped state.
1904
1905=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1906
1907Set the callback to be called when the watcher triggers.
1908
1909=item $timer = $timer->start
1910
1911Start the watcher.
1912
1913=item $timer = $timer->stop
1914
1915Stop the watcher.
1916
1917=back
1918
1919=head2 The C<urxvt::pw> Class
1920
1921This class implements process watchers. They create an event whenever a
1922process exits, after which they stop automatically.
1923
1924 my $pid = fork;
1925 ...
1926 $term->{pw} = urxvt::pw
1927 ->new
1928 ->start ($pid)
1929 ->cb (sub {
1930 my ($pw, $exit_status) = @_;
1931 ...
1932 });
1933
1934=over 4
1935
1936=item $pw = new urxvt::pw
1937
1938Create a new process watcher in stopped state.
1939
1940=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1941
1942Set the callback to be called when the timer triggers.
1943
1944=item $pw = $timer->start ($pid)
1945
1946Tells the wqtcher to start watching for process C<$pid>.
1947
1948=item $pw = $pw->stop
1949
1950Stop the watcher.
1951
1952=back
1953
1638=head1 ENVIRONMENT 1954=head1 ENVIRONMENT
1639 1955
1640=head2 URXVT_PERL_VERBOSITY 1956=head2 URXVT_PERL_VERBOSITY
1641 1957
1642This variable controls the verbosity level of the perl extension. Higher 1958This variable controls the verbosity level of the perl extension. Higher

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