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Revision 1.91 by root, Fri Jan 13 01:09:37 2006 UTC vs.
Revision 1.126 by root, Tue Jan 24 19:14:36 2006 UTC

34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. 34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35 35
36You can activate them like this: 36You can activate them like this:
37 37
38 @@RXVT_NAME@@ -pe <extensionname> 38 @@RXVT_NAME@@ -pe <extensionname>
39
40Or by adding them to the resource for extensions loaded by default:
41
42 URxvt.perl-ext-common: default,automove-background,selection-autotransform
39 43
40=over 4 44=over 4
41 45
42=item selection (enabled by default) 46=item selection (enabled by default)
43 47
63the match. For example, the followign adds a regex that matches everything 67the match. For example, the followign adds a regex that matches everything
64between two vertical bars: 68between two vertical bars:
65 69
66 URxvt.selection.pattern-0: \\|([^|]+)\\| 70 URxvt.selection.pattern-0: \\|([^|]+)\\|
67 71
72Another example: Programs I use often output "absolute path: " at the
73beginning of a line when they process multiple files. The following
74pattern matches the filename (note, there is a single space at the very
75end):
76
77 URxvt.selection.pattern-0: ^(/[^:]+):\
78
68You can look at the source of the selection extension to see more 79You can look at the source of the selection extension to see more
69interesting uses, such as parsing a line from beginning to end. 80interesting uses, such as parsing a line from beginning to end.
70 81
71This extension also offers the following bindable keyboard command: 82This extension also offers following bindable keyboard commands:
72 83
73=over 4 84=over 4
74 85
75=item rot13 86=item rot13
76 87
87 98
88=item selection-popup (enabled by default) 99=item selection-popup (enabled by default)
89 100
90Binds a popup menu to Ctrl-Button3 that lets you convert the selection 101Binds a popup menu to Ctrl-Button3 that lets you convert the selection
91text into various other formats/action (such as uri unescaping, perl 102text into various other formats/action (such as uri unescaping, perl
92evalution, web-browser starting etc.), depending on content. 103evaluation, web-browser starting etc.), depending on content.
104
105Other extensions can extend this popup menu by pushing a code reference
106onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the
107popup is displayed.
108
109It's sole argument is the popup menu, which can be modified. The selection
110is in C<$_>, which can be used to decide wether to add something or not.
111It should either return nothing or a string and a code reference. The
112string will be used as button text and the code reference will be called
113when the button gets activated and should transform C<$_>.
114
115The following will add an entry C<a to b> that transforms all C<a>s in
116the selection to C<b>s, but only if the selection currently contains any
117C<a>s:
118
119 push @{ $self->{term}{selection_popup_hook} }, sub {
120 /a/ ? ("a to be" => sub { s/a/b/g }
121 : ()
122 };
93 123
94=item searchable-scrollback<hotkey> (enabled by default) 124=item searchable-scrollback<hotkey> (enabled by default)
95 125
96Adds regex search functionality to the scrollback buffer, triggered 126Adds regex search functionality to the scrollback buffer, triggered
97by a hotkey (default: C<M-s>). While in search mode, normal terminal 127by 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 134bottom. 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 135was 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 136additionally stores the first match in the current line into the primary
107selection. 137selection.
108 138
139=item readline (enabled by default)
140
141A support package that tries to make editing with readline easier. At the
142moment, it reacts to clicking with the left mouse button by trying to
143move the text cursor to this position. It does so by generating as many
144cursor-left or cursor-right keypresses as required (the this only works
145for programs that correctly support wide characters).
146
147To avoid too many false positives, this is only done when:
148
149=over 4
150
151=item - the tty is in ICANON state.
152
153=item - the text cursor is visible.
154
155=item - the primary screen is currently being displayed.
156
157=item - the mouse is on the same (multi-row-) line as the text cursor.
158
159=back
160
161The normal selection mechanism isn't disabled, so quick successive clicks
162might interfere with selection creation in harmless ways.
163
109=item selection-autotransform 164=item selection-autotransform
110 165
111This selection allows you to do automatic transforms on a selection 166This selection allows you to do automatic transforms on a selection
112whenever a selection is made. 167whenever a selection is made.
113 168
120 175
121For example, the following will transform selections of the form 176For example, the following will transform selections of the form
122C<filename:number>, often seen in compiler messages, into C<vi +$filename 177C<filename:number>, often seen in compiler messages, into C<vi +$filename
123$word>: 178$word>:
124 179
125 URxvt.selection-autotransform.0: s/^(\\S+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/ 180 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
126 181
127And this example matches the same,but replaces it with vi-commands you can 182And this example matches the same,but replaces it with vi-commands you can
128paste directly into your (vi :) editor: 183paste directly into your (vi :) editor:
129 184
130 URxvt.selection-autotransform.0: s/^(S+):(d+):?$/\\x1b:e \\Q$1\\E\\x0d:$2\\x0d/ 185 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
131 186
132Of course, this can be modified to suit your needs and your editor :) 187Of course, this can be modified to suit your needs and your editor :)
133 188
134To expand the example above to typical perl error messages ("XXX at 189To expand the example above to typical perl error messages ("XXX at
135FILENAME line YYY."), you need a slightly more elaborate solution: 190FILENAME line YYY."), you need a slightly more elaborate solution:
136 191
137 URxvt.selection.pattern-0: ( at .*? line \\d+\\.) 192 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
138 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)\\.$/\x1b:e \\Q$1\E\\x0d:$2\\x0d/ 193 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
139 194
140The first line tells the selection code to treat the unchanging part of 195The first line tells the selection code to treat the unchanging part of
141every error message as a selection pattern, and the second line transforms 196every error message as a selection pattern, and the second line transforms
142the message into vi commands to load the file. 197the message into vi commands to load the file.
198
199=item tabbed
200
201This transforms the terminal into a tabbar with additional terminals, that
202is, it implements what is commonly refered to as "tabbed terminal". The topmost line
203displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
204button per tab.
205
206Clicking a button will activate that tab. Pressing B<Shift-Left> and
207B<Shift-Right> will switch to the tab left or right of the current one,
208while B<Shift-Down> creates a new tab.
143 209
144=item mark-urls 210=item mark-urls
145 211
146Uses per-line display filtering (C<on_line_update>) to underline urls and 212Uses per-line display filtering (C<on_line_update>) to underline urls and
147make them clickable. When middle-clicked, the program specified in the 213make them clickable. When middle-clicked, the program specified in the
148resource C<urlLauncher> (default C<x-www-browser>) will be started with 214resource C<urlLauncher> (default C<x-www-browser>) will be started with
149the URL as first argument. 215the URL as first argument.
150 216
217=item automove-background
218
219This is basically a one-line extension that dynamically changes the background pixmap offset
220to the window position, in effect creating the same effect as pseudo transparency with
221a custom pixmap. No scaling is supported in this mode. Exmaple:
222
223 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
224
151=item block-graphics-to-ascii 225=item block-graphics-to-ascii
152 226
153A not very useful example of filtering all text output to the terminal, 227A not very useful example of filtering all text output to the terminal,
154by replacing all line-drawing characters (U+2500 .. U+259F) by a 228by replacing all line-drawing characters (U+2500 .. U+259F) by a
155similar-looking ascii character. 229similar-looking ascii character.
161=item example-refresh-hooks 235=item example-refresh-hooks
162 236
163Displays a very simple digital clock in the upper right corner of the 237Displays a very simple digital clock in the upper right corner of the
164window. Illustrates overwriting the refresh callbacks to create your own 238window. Illustrates overwriting the refresh callbacks to create your own
165overlays or changes. 239overlays or changes.
240
241=item selection-pastebin
242
243This is a little rarely useful extension that Uploads the selection as
244textfile to a remote site (or does other things). (The implementation is
245not currently secure for use in a multiuser environment as it writes to
246F</tmp> directly.).
247
248It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
249i.e.
250
251 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
252
253Pressing this combination runs a command with C<%> replaced by the name of
254the textfile. This command can be set via a resource:
255
256 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
257
258And the default is likely not useful to anybody but the few people around
259here :)
260
261The name of the textfile is the hex encoded md5 sum of the selection, so
262the same content should lead to the same filename.
263
264After a successful upload the selection will be replaced by the text given
265in the C<selection-pastebin-url> resource (again, the % is the placeholder
266for the filename):
267
268 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
166 269
167=back 270=back
168 271
169=head1 API DOCUMENTATION 272=head1 API DOCUMENTATION
170 273
243called whenever the relevant event happens. 346called whenever the relevant event happens.
244 347
245The first argument passed to them is an extension oject as described in 348The first argument passed to them is an extension oject as described in
246the in the C<Extension Objects> section. 349the in the C<Extension Objects> section.
247 350
248B<All> of these hooks must return a boolean value. If it is true, then the 351B<All> of these hooks must return a boolean value. If any of the called
249event counts as being I<consumed>, and the invocation of other hooks is 352hooks returns true, then the event counts as being I<consumed>, and the
250skipped, and the relevant action might not be carried out by the C++ code. 353relevant action might not be carried out by the C++ code.
251 354
252I<< When in doubt, return a false value (preferably C<()>). >> 355I<< When in doubt, return a false value (preferably C<()>). >>
253 356
254=over 4 357=over 4
255 358
256=item on_init $term 359=item on_init $term
257 360
258Called after a new terminal object has been initialized, but before 361Called after a new terminal object has been initialized, but before
259windows are created or the command gets run. Most methods are unsafe to 362windows are created or the command gets run. Most methods are unsafe to
260call or deliver senseless data, as terminal size and other characteristics 363call or deliver senseless data, as terminal size and other characteristics
261have not yet been determined. You can safely query and change resources, 364have not yet been determined. You can safely query and change resources
262though. 365and options, though. For many purposes the C<on_start> hook is a better
366place.
367
368=item on_start $term
369
370Called at the very end of initialisation of a new terminal, just before
371trying to map (display) the toplevel and returning to the mainloop.
372
373=item on_destroy $term
374
375Called whenever something tries to destroy terminal, before doing anything
376yet. If this hook returns true, then destruction is skipped, but this is
377rarely a good idea.
263 378
264=item on_reset $term 379=item on_reset $term
265 380
266Called after the screen is "reset" for any reason, such as resizing or 381Called after the screen is "reset" for any reason, such as resizing or
267control sequences. Here is where you can react on changes to size-related 382control sequences. Here is where you can react on changes to size-related
268variables. 383variables.
269 384
270=item on_start $term 385=item on_child_start $term, $pid
271 386
272Called at the very end of initialisation of a new terminal, just before 387Called just after the child process has been C<fork>ed.
273returning to the mainloop. 388
389=item on_child_exit $term, $status
390
391Called just after the child process has exited. C<$status> is the status
392from C<waitpid>.
274 393
275=item on_sel_make $term, $eventtime 394=item on_sel_make $term, $eventtime
276 395
277Called whenever a selection has been made by the user, but before the 396Called whenever a selection has been made by the user, but before the
278selection text is copied, so changes to the beginning, end or type of the 397selection text is copied, so changes to the beginning, end or type of the
371 490
372Called whenever the user presses a key combination that has a 491Called whenever the user presses a key combination that has a
373C<perl:string> action bound to it (see description of the B<keysym> 492C<perl:string> action bound to it (see description of the B<keysym>
374resource in the @@RXVT_NAME@@(1) manpage). 493resource in the @@RXVT_NAME@@(1) manpage).
375 494
495=item on_x_event $term, $event
496
497Called on every X event received on the vt window (and possibly other
498windows). Should only be used as a last resort. Most event structure
499members are not passed.
500
376=item on_focus_in $term 501=item on_focus_in $term
377 502
378Called whenever the window gets the keyboard focus, before rxvt-unicode 503Called whenever the window gets the keyboard focus, before rxvt-unicode
379does focus in processing. 504does focus in processing.
380 505
381=item on_focus_out $term 506=item on_focus_out $term
382 507
383Called wheneever the window loses keyboard focus, before rxvt-unicode does 508Called wheneever the window loses keyboard focus, before rxvt-unicode does
384focus out processing. 509focus out processing.
385 510
511=item on_configure_notify $term, $event
512
513=item on_property_notify $term, $event
514
386=item on_key_press $term, $event, $keysym, $octets 515=item on_key_press $term, $event, $keysym, $octets
387 516
388=item on_key_release $term, $event, $keysym 517=item on_key_release $term, $event, $keysym
389 518
390=item on_button_press $term, $event 519=item on_button_press $term, $event
399 528
400Called whenever the corresponding X event is received for the terminal If 529Called whenever the corresponding X event is received for the terminal If
401the hook returns true, then the even will be ignored by rxvt-unicode. 530the hook returns true, then the even will be ignored by rxvt-unicode.
402 531
403The event is a hash with most values as named by Xlib (see the XEvent 532The event is a hash with most values as named by Xlib (see the XEvent
404manpage), with the additional members C<row> and C<col>, which are the row 533manpage), with the additional members C<row> and C<col>, which are the
405and column under the mouse cursor. 534(real, not screen-based) row and column under the mouse cursor.
406 535
407C<on_key_press> additionally receives the string rxvt-unicode would 536C<on_key_press> additionally receives the string rxvt-unicode would
408output, if any, in locale-specific encoding. 537output, if any, in locale-specific encoding.
409 538
410subwindow. 539subwindow.
540
541=item on_client_message $term, $event
542
543=item on_wm_protocols $term, $event
544
545=item on_wm_delete_window $term, $event
546
547Called when various types of ClientMessage events are received (all with
548format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
411 549
412=back 550=back
413 551
414=cut 552=cut
415 553
421use Scalar::Util (); 559use Scalar::Util ();
422use List::Util (); 560use List::Util ();
423 561
424our $VERSION = 1; 562our $VERSION = 1;
425our $TERM; 563our $TERM;
564our @TERM_INIT;
565our @TERM_EXT;
426our @HOOKNAME; 566our @HOOKNAME;
427our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 567our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
428our %OPTION; 568our %OPTION;
429 569
430our $LIBDIR; 570our $LIBDIR;
431our $RESNAME; 571our $RESNAME;
432our $RESCLASS; 572our $RESCLASS;
433our $RXVTNAME; 573our $RXVTNAME;
434 574
575our $NOCHAR = chr 0xffff;
576
435=head2 Variables in the C<urxvt> Package 577=head2 Variables in the C<urxvt> Package
436 578
437=over 4 579=over 4
438 580
439=item $urxvt::LIBDIR 581=item $urxvt::LIBDIR
451 593
452=item $urxvt::TERM 594=item $urxvt::TERM
453 595
454The current terminal. This variable stores the current C<urxvt::term> 596The current terminal. This variable stores the current C<urxvt::term>
455object, whenever a callback/hook is executing. 597object, whenever a callback/hook is executing.
598
599=item @urxvt::TERM_INIT
600
601All coderefs in this array will be called as methods of the next newly
602created C<urxvt::term> object (during the C<on_init> phase). The array
603gets cleared before the codereferences that were in it are being executed,
604so coderefs can push themselves onto it again if they so desire.
605
606This complements to the perl-eval commandline option, but gets executed
607first.
608
609=item @urxvt::TERM_EXT
610
611Works similar to C<@TERM_INIT>, but contains perl package/class names, which
612get registered as normal extensions after calling the hooks in C<@TERM_INIT>
613but before other extensions. Gets cleared just like C<@TERM_INIT>.
456 614
457=back 615=back
458 616
459=head2 Functions in the C<urxvt> Package 617=head2 Functions in the C<urxvt> Package
460 618
475Using this function has the advantage that its output ends up in the 633Using this function has the advantage that its output ends up in the
476correct place, e.g. on stderr of the connecting urxvtc client. 634correct place, e.g. on stderr of the connecting urxvtc client.
477 635
478Messages have a size limit of 1023 bytes currently. 636Messages have a size limit of 1023 bytes currently.
479 637
480=item $is_safe = urxvt::safe
481
482Returns true when it is safe to do potentially unsafe things, such as
483evaluating perl code specified by the user. This is true when urxvt was
484started setuid or setgid.
485
486=item $time = urxvt::NOW 638=item $time = urxvt::NOW
487 639
488Returns the "current time" (as per the event loop). 640Returns the "current time" (as per the event loop).
489 641
490=item urxvt::CurrentTime 642=item urxvt::CurrentTime
491 643
492=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 644=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
493Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 645Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
494Button4Mask, Button5Mask, AnyModifier 646Button4Mask, Button5Mask, AnyModifier
647
648=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
649ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
650PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
651Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
652KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
653ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
654FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
655
656=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
657EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
658GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
659UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
660ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
661CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
662SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
495 663
496Various constants for use in X calls and event processing. 664Various constants for use in X calls and event processing.
497 665
498=back 666=back
499 667
550=back 718=back
551 719
552=cut 720=cut
553 721
554BEGIN { 722BEGIN {
555 urxvt->bootstrap;
556
557 # overwrite perl's warn 723 # overwrite perl's warn
558 *CORE::GLOBAL::warn = sub { 724 *CORE::GLOBAL::warn = sub {
559 my $msg = join "", @_; 725 my $msg = join "", @_;
560 $msg .= "\n" 726 $msg .= "\n"
561 unless $msg =~ /\n$/; 727 unless $msg =~ /\n$/;
562 urxvt::warn ($msg); 728 urxvt::warn ($msg);
563 }; 729 };
564
565 # %ENV is the original startup environment
566 delete $ENV{IFS};
567 delete $ENV{CDPATH};
568 delete $ENV{BASH_ENV};
569 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
570} 730}
571 731
572my @hook_count; 732no warnings 'utf8';
733
573my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 734my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
574 735
575sub verbose { 736sub verbose {
576 my ($level, $msg) = @_; 737 my ($level, $msg) = @_;
577 warn "$msg\n" if $level <= $verbosity; 738 warn "$msg\n" if $level <= $verbosity;
578} 739}
579 740
580my $extension_pkg = "extension0000";
581my %extension_pkg; 741my %extension_pkg;
582 742
583# load a single script into its own package, once only 743# load a single script into its own package, once only
584sub extension_package($) { 744sub extension_package($) {
585 my ($path) = @_; 745 my ($path) = @_;
586 746
587 $extension_pkg{$path} ||= do { 747 $extension_pkg{$path} ||= do {
588 my $pkg = "urxvt::" . ($extension_pkg++); 748 $path =~ /([^\/\\]+)$/;
749 my $pkg = $1;
750 $pkg =~ s/[^[:word:]]/_/g;
751 $pkg = "urxvt::ext::$pkg";
589 752
590 verbose 3, "loading extension '$path' into package '$pkg'"; 753 verbose 3, "loading extension '$path' into package '$pkg'";
591 754
592 open my $fh, "<:raw", $path 755 open my $fh, "<:raw", $path
593 or die "$path: $!"; 756 or die "$path: $!";
594 757
595 my $source = untaint 758 my $source =
596 "package $pkg; use strict; use utf8;\n" 759 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
597 . "use base urxvt::term::extension::;\n"
598 . "#line 1 \"$path\"\n{\n" 760 . "#line 1 \"$path\"\n{\n"
599 . (do { local $/; <$fh> }) 761 . (do { local $/; <$fh> })
600 . "\n};\n1"; 762 . "\n};\n1";
601 763
602 eval $source 764 eval $source
616 if ($htype == 0) { # INIT 778 if ($htype == 0) { # INIT
617 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 779 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
618 780
619 my %ext_arg; 781 my %ext_arg;
620 782
783 {
784 my @init = @TERM_INIT;
785 @TERM_INIT = ();
786 $_->($TERM) for @init;
787 my @pkg = @TERM_EXT;
788 @TERM_EXT = ();
789 $TERM->register_package ($_) for @pkg;
790 }
791
621 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 792 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
622 if ($_ eq "default") { 793 if ($_ eq "default") {
623 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 794 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
624 } elsif (/^-(.*)$/) { 795 } elsif (/^-(.*)$/) {
625 delete $ext_arg{$1}; 796 delete $ext_arg{$1};
626 } elsif (/^([^<]+)<(.*)>$/) { 797 } elsif (/^([^<]+)<(.*)>$/) {
627 push @{ $ext_arg{$1} }, $2; 798 push @{ $ext_arg{$1} }, $2;
628 } else { 799 } else {
651 if $verbosity >= 10; 822 if $verbosity >= 10;
652 823
653 keys %$cb; 824 keys %$cb;
654 825
655 while (my ($pkg, $cb) = each %$cb) { 826 while (my ($pkg, $cb) = each %$cb) {
656 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 827 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
657 and last; 828 $retval ||= $retval_;
658 829
659 if ($@) { 830 if ($@) {
660 $TERM->ungrab; # better to lose the grab than the session 831 $TERM->ungrab; # better to lose the grab than the session
661 warn $@; 832 warn $@;
662 } 833 }
665 verbose 11, "$HOOKNAME[$htype] returning <$retval>" 836 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
666 if $verbosity >= 11; 837 if $verbosity >= 11;
667 } 838 }
668 839
669 if ($htype == 1) { # DESTROY 840 if ($htype == 1) { # DESTROY
670 if (my $hook = delete $TERM->{_hook}) {
671 for my $htype (0..$#$hook) {
672 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
673 or set_should_invoke $htype, 0;
674 }
675 }
676
677 # clear package objects 841 # clear package objects
678 %$_ = () for values %{ $TERM->{_pkg} }; 842 %$_ = () for values %{ $TERM->{_pkg} };
679 843
680 # clear package 844 # clear package
681 %$TERM = (); 845 %$TERM = ();
682 } 846 }
683 847
684 $retval 848 $retval
685}
686
687sub exec_async(@) {
688 my $pid = fork;
689
690 return
691 if !defined $pid or $pid;
692
693 %ENV = %{ $TERM->env };
694
695 exec @_;
696 _exit 255;
697} 849}
698 850
699# urxvt::term::extension 851# urxvt::term::extension
700 852
701package urxvt::term::extension; 853package urxvt::term::extension;
707 while (my ($name, $cb) = each %hook) { 859 while (my ($name, $cb) = each %hook) {
708 my $htype = $HOOKTYPE{uc $name}; 860 my $htype = $HOOKTYPE{uc $name};
709 defined $htype 861 defined $htype
710 or Carp::croak "unsupported hook type '$name'"; 862 or Carp::croak "unsupported hook type '$name'";
711 863
864 $self->set_should_invoke ($htype, +1)
712 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 865 unless exists $self->{term}{_hook}[$htype]{$pkg};
713 $hook_count[$htype]++
714 or urxvt::set_should_invoke $htype, 1;
715 }
716 866
717 $self->{term}{_hook}[$htype]{$pkg} = $cb; 867 $self->{term}{_hook}[$htype]{$pkg} = $cb;
718 } 868 }
719} 869}
720 870
725 for my $name (@hook) { 875 for my $name (@hook) {
726 my $htype = $HOOKTYPE{uc $name}; 876 my $htype = $HOOKTYPE{uc $name};
727 defined $htype 877 defined $htype
728 or Carp::croak "unsupported hook type '$name'"; 878 or Carp::croak "unsupported hook type '$name'";
729 879
880 $self->set_should_invoke ($htype, -1)
730 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 881 if delete $self->{term}{_hook}[$htype]{$pkg};
731 --$hook_count[$htype]
732 or urxvt::set_should_invoke $htype, 0;
733 }
734 } 882 }
735} 883}
736 884
737our $AUTOLOAD; 885our $AUTOLOAD;
738 886
844# find on_xxx subs in the package and register them 992# find on_xxx subs in the package and register them
845# as hooks 993# as hooks
846sub register_package { 994sub register_package {
847 my ($self, $pkg, $argv) = @_; 995 my ($self, $pkg, $argv) = @_;
848 996
997 no strict 'refs';
998
999 urxvt::verbose 6, "register package $pkg to $self";
1000
1001 @{"$pkg\::ISA"} = urxvt::term::extension::;
1002
849 my $proxy = bless { 1003 my $proxy = bless {
850 _pkg => $pkg, 1004 _pkg => $pkg,
851 argv => $argv, 1005 argv => $argv,
852 }, $pkg; 1006 }, $pkg;
853 Scalar::Util::weaken ($proxy->{term} = $self); 1007 Scalar::Util::weaken ($proxy->{term} = $self);
884 1038
885Destroy the terminal object (close the window, free resources 1039Destroy the terminal object (close the window, free resources
886etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1040etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
887watchers (timers, io watchers) are still active. 1041watchers (timers, io watchers) are still active.
888 1042
1043=item $term->exec_async ($cmd[, @args])
1044
1045Works like the combination of the C<fork>/C<exec> builtins, which executes
1046("starts") programs in the background. This function takes care of setting
1047the user environment before exec'ing the command (e.g. C<PATH>) and should
1048be preferred over explicit calls to C<exec> or C<system>.
1049
1050Returns the pid of the subprocess or C<undef> on error.
1051
1052=cut
1053
1054sub exec_async {
1055 my $self = shift;
1056
1057 my $pid = fork;
1058
1059 return $pid
1060 if !defined $pid or $pid;
1061
1062 %ENV = %{ $self->env };
1063
1064 exec @_;
1065 urxvt::_exit 255;
1066}
1067
889=item $isset = $term->option ($optval[, $set]) 1068=item $isset = $term->option ($optval[, $set])
890 1069
891Returns true if the option specified by C<$optval> is enabled, and 1070Returns true if the option specified by C<$optval> is enabled, and
892optionally change it. All option values are stored by name in the hash 1071optionally change it. All option values are stored by name in the hash
893C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. 1072C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
895Here is a a likely non-exhaustive list of option names, please see the 1074Here is a a likely non-exhaustive list of option names, please see the
896source file F</src/optinc.h> to see the actual list: 1075source file F</src/optinc.h> to see the actual list:
897 1076
898 borderLess console cursorBlink cursorUnderline hold iconic insecure 1077 borderLess console cursorBlink cursorUnderline hold iconic insecure
899 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1078 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
900 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1079 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
901 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1080 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
902 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1081 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
903 tripleclickwords utmpInhibit visualBell 1082 transparent tripleclickwords utmpInhibit visualBell
904 1083
905=item $value = $term->resource ($name[, $newval]) 1084=item $value = $term->resource ($name[, $newval])
906 1085
907Returns the current resource value associated with a given name and 1086Returns the current resource value associated with a given name and
908optionally sets a new value. Setting values is most useful in the C<init> 1087optionally sets a new value. Setting values is most useful in the C<init>
925 1104
926 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1105 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
927 borderLess color cursorBlink cursorUnderline cutchars delete_key 1106 borderLess color cursorBlink cursorUnderline cutchars delete_key
928 display_name embed ext_bwidth fade font geometry hold iconName 1107 display_name embed ext_bwidth fade font geometry hold iconName
929 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1108 imFont imLocale inputMethod insecure int_bwidth intensityStyles
930 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1109 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
931 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1110 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
932 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1111 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
933 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1112 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
934 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1113 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
935 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1114 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
936 shade term_name title transparent transparent_all tripleclickwords 1115 secondaryScreen secondaryScroll selectstyle shade term_name title
937 utmpInhibit visualBell 1116 transient_for transparent transparent_all tripleclickwords utmpInhibit
1117 visualBell
938 1118
939=cut 1119=cut
940 1120
941sub resource($$;$) { 1121sub resource($$;$) {
942 my ($self, $name) = (shift, shift); 1122 my ($self, $name) = (shift, shift);
1116 1296
1117Normally its not a good idea to use this function, as programs might be 1297Normally its not a good idea to use this function, as programs might be
1118confused by changes in cursor position or scrolling. Its useful inside a 1298confused by changes in cursor position or scrolling. Its useful inside a
1119C<on_add_lines> hook, though. 1299C<on_add_lines> hook, though.
1120 1300
1301=item $term->scr_change_screen ($screen)
1302
1303Switch to given screen - 0 primary, 1 secondary.
1304
1121=item $term->cmd_parse ($octets) 1305=item $term->cmd_parse ($octets)
1122 1306
1123Similar to C<scr_add_lines>, but the argument must be in the 1307Similar to C<scr_add_lines>, but the argument must be in the
1124locale-specific encoding of the terminal and can contain command sequences 1308locale-specific encoding of the terminal and can contain command sequences
1125(escape codes) that will be interpreted. 1309(escape codes) that will be interpreted.
1135Replaces the event mask of the pty watcher by the given event mask. Can 1319Replaces the event mask of the pty watcher by the given event mask. Can
1136be used to suppress input and output handling to the pty/tty. See the 1320be used to suppress input and output handling to the pty/tty. See the
1137description of C<< urxvt::timer->events >>. Make sure to always restore 1321description of C<< urxvt::timer->events >>. Make sure to always restore
1138the previous value. 1322the previous value.
1139 1323
1324=item $fd = $term->pty_fd
1325
1326Returns the master file descriptor for the pty in use, or C<-1> if no pty
1327is used.
1328
1140=item $windowid = $term->parent 1329=item $windowid = $term->parent
1141 1330
1142Return the window id of the toplevel window. 1331Return the window id of the toplevel window.
1143 1332
1144=item $windowid = $term->vt 1333=item $windowid = $term->vt
1145 1334
1146Return the window id of the terminal window. 1335Return the window id of the terminal window.
1147 1336
1337=item $term->vt_emask_add ($x_event_mask)
1338
1339Adds the specified events to the vt event mask. Useful e.g. when you want
1340to receive pointer events all the times:
1341
1342 $term->vt_emask_add (urxvt::PointerMotionMask);
1343
1148=item $window_width = $term->width 1344=item $window_width = $term->width
1149 1345
1150=item $window_height = $term->height 1346=item $window_height = $term->height
1151 1347
1152=item $font_width = $term->fwidth 1348=item $font_width = $term->fwidth
1165 1361
1166=item $max_scrollback = $term->saveLines 1362=item $max_scrollback = $term->saveLines
1167 1363
1168=item $nrow_plus_saveLines = $term->total_rows 1364=item $nrow_plus_saveLines = $term->total_rows
1169 1365
1170=item $lines_in_scrollback = $term->nsaved 1366=item $topmost_scrollback_row = $term->top_row
1171 1367
1172Return various integers describing terminal characteristics. 1368Return various integers describing terminal characteristics.
1173 1369
1174=item $x_display = $term->display_id 1370=item $x_display = $term->display_id
1175 1371
1201=item $modifiermask = $term->ModNumLockMask 1397=item $modifiermask = $term->ModNumLockMask
1202 1398
1203Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1399Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1204AltGr), the meta key (often Alt) and the num lock key, if applicable. 1400AltGr), the meta key (often Alt) and the num lock key, if applicable.
1205 1401
1402=item $screen = $term->current_screen
1403
1404Returns the currently displayed screen (0 primary, 1 secondary).
1405
1406=item $cursor_is_hidden = $term->hidden_cursor
1407
1408Returns wether the cursor is currently hidden or not.
1409
1206=item $view_start = $term->view_start ([$newvalue]) 1410=item $view_start = $term->view_start ([$newvalue])
1207 1411
1208Returns the negative row number of the topmost line. Minimum value is 1412Returns the row number of the topmost displayed line. Maximum value is
1209C<0>, which displays the normal terminal contents. Larger values scroll 1413C<0>, which displays the normal terminal contents. Lower values scroll
1210this many lines into the scrollback buffer. 1414this many lines into the scrollback buffer.
1211 1415
1212=item $term->want_refresh 1416=item $term->want_refresh
1213 1417
1214Requests a screen refresh. At the next opportunity, rxvt-unicode will 1418Requests a screen refresh. At the next opportunity, rxvt-unicode will
1229line, starting at column C<$start_col> (default C<0>), which is useful 1433line, starting at column C<$start_col> (default C<0>), which is useful
1230to replace only parts of a line. The font index in the rendition will 1434to replace only parts of a line. The font index in the rendition will
1231automatically be updated. 1435automatically be updated.
1232 1436
1233C<$text> is in a special encoding: tabs and wide characters that use more 1437C<$text> is in a special encoding: tabs and wide characters that use more
1234than one cell when displayed are padded with urxvt::NOCHAR characters 1438than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1235(C<chr 65535>). Characters with combining characters and other characters 1439characters. Characters with combining characters and other characters that
1236that do not fit into the normal tetx encoding will be replaced with 1440do not fit into the normal tetx encoding will be replaced with characters
1237characters in the private use area. 1441in the private use area.
1238 1442
1239You have to obey this encoding when changing text. The advantage is 1443You have to obey this encoding when changing text. The advantage is
1240that C<substr> and similar functions work on screen cells and not on 1444that C<substr> and similar functions work on screen cells and not on
1241characters. 1445characters.
1242 1446
1417 1621
1418Calls XUngrab for the most recent grab. Is called automatically on 1622Calls XUngrab for the most recent grab. Is called automatically on
1419evaluation errors, as it is better to lose the grab in the error case as 1623evaluation errors, as it is better to lose the grab in the error case as
1420the session. 1624the session.
1421 1625
1626=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1627
1628=item $atom_name = $term->XGetAtomName ($atom)
1629
1630=item @atoms = $term->XListProperties ($window)
1631
1632=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1633
1634=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1635
1636=item $term->XDeleteProperty ($window, $property)
1637
1638=item $window = $term->DefaultRootWindow
1639
1640=item $term->XReparentWindow ($window, $parent, [$x, $y])
1641
1642=item $term->XMapWindow ($window)
1643
1644=item $term->XUnmapWindow ($window)
1645
1646=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1647
1648=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1649
1650=item $term->XChangeInput ($window, $add_events[, $del_events])
1651
1652Various X or X-related functions. The C<$term> object only serves as
1653the source of the display, otherwise those functions map more-or-less
1654directory onto the X functions of the same name.
1655
1422=back 1656=back
1423 1657
1424=cut 1658=cut
1425 1659
1426package urxvt::popup; 1660package urxvt::popup;
1527 my $env = $self->{term}->env; 1761 my $env = $self->{term}->env;
1528 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. 1762 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1529 delete $env->{LC_ALL}; 1763 delete $env->{LC_ALL};
1530 $env->{LC_CTYPE} = $self->{term}->locale; 1764 $env->{LC_CTYPE} = $self->{term}->locale;
1531 1765
1532 urxvt::term->new ($env, $self->{term}->resource ("name"), 1766 urxvt::term->new ($env, "popup",
1533 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1767 "--perl-lib" => "", "--perl-ext-common" => "",
1768 "-pty-fd" => -1, "-sl" => 0,
1769 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1534 "--transient-for" => $self->{term}->parent, 1770 "--transient-for" => $self->{term}->parent,
1535 "-display" => $self->{term}->display_id, 1771 "-display" => $self->{term}->display_id,
1536 "-pe" => "urxvt-popup") 1772 "-pe" => "urxvt-popup")
1537 or die "unable to create popup window\n"; 1773 or die "unable to create popup window\n";
1538} 1774}
1543 delete $self->{term}{_destroy}{$self}; 1779 delete $self->{term}{_destroy}{$self};
1544 $self->{term}->ungrab; 1780 $self->{term}->ungrab;
1545} 1781}
1546 1782
1547=back 1783=back
1784
1785=cut
1786
1787package urxvt::watcher;
1788
1789@urxvt::timer::ISA = __PACKAGE__;
1790@urxvt::iow::ISA = __PACKAGE__;
1791@urxvt::pw::ISA = __PACKAGE__;
1792@urxvt::iw::ISA = __PACKAGE__;
1548 1793
1549=head2 The C<urxvt::timer> Class 1794=head2 The C<urxvt::timer> Class
1550 1795
1551This class implements timer watchers/events. Time is represented as a 1796This class implements timer watchers/events. Time is represented as a
1552fractional number of seconds since the epoch. Example: 1797fractional number of seconds since the epoch. Example:
1590Start the timer. 1835Start the timer.
1591 1836
1592=item $timer = $timer->start ($tstamp) 1837=item $timer = $timer->start ($tstamp)
1593 1838
1594Set the event trigger time to C<$tstamp> and start the timer. 1839Set the event trigger time to C<$tstamp> and start the timer.
1840
1841=item $timer = $timer->after ($delay)
1842
1843Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1595 1844
1596=item $timer = $timer->stop 1845=item $timer = $timer->stop
1597 1846
1598Stop the timer. 1847Stop the timer.
1599 1848
1646 1895
1647Stop watching for events on the given filehandle. 1896Stop watching for events on the given filehandle.
1648 1897
1649=back 1898=back
1650 1899
1900=head2 The C<urxvt::iw> Class
1901
1902This class implements idle watchers, that get called automatically when
1903the process is idle. They should return as fast as possible, after doing
1904some useful work.
1905
1906=over 4
1907
1908=item $iw = new urxvt::iw
1909
1910Create a new idle watcher object in stopped state.
1911
1912=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1913
1914Set the callback to be called when the watcher triggers.
1915
1916=item $timer = $timer->start
1917
1918Start the watcher.
1919
1920=item $timer = $timer->stop
1921
1922Stop the watcher.
1923
1924=back
1925
1926=head2 The C<urxvt::pw> Class
1927
1928This class implements process watchers. They create an event whenever a
1929process exits, after which they stop automatically.
1930
1931 my $pid = fork;
1932 ...
1933 $term->{pw} = urxvt::pw
1934 ->new
1935 ->start ($pid)
1936 ->cb (sub {
1937 my ($pw, $exit_status) = @_;
1938 ...
1939 });
1940
1941=over 4
1942
1943=item $pw = new urxvt::pw
1944
1945Create a new process watcher in stopped state.
1946
1947=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1948
1949Set the callback to be called when the timer triggers.
1950
1951=item $pw = $timer->start ($pid)
1952
1953Tells the wqtcher to start watching for process C<$pid>.
1954
1955=item $pw = $pw->stop
1956
1957Stop the watcher.
1958
1959=back
1960
1651=head1 ENVIRONMENT 1961=head1 ENVIRONMENT
1652 1962
1653=head2 URXVT_PERL_VERBOSITY 1963=head2 URXVT_PERL_VERBOSITY
1654 1964
1655This variable controls the verbosity level of the perl extension. Higher 1965This variable controls the verbosity level of the perl extension. Higher

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