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Revision 1.87 by root, Thu Jan 12 05:37:34 2006 UTC vs.
Revision 1.128 by root, Wed Jan 25 00:57:57 2006 UTC

34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. 34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35 35
36You can activate them like this: 36You can activate them like this:
37 37
38 @@RXVT_NAME@@ -pe <extensionname> 38 @@RXVT_NAME@@ -pe <extensionname>
39
40Or by adding them to the resource for extensions loaded by default:
41
42 URxvt.perl-ext-common: default,automove-background,selection-autotransform
39 43
40=over 4 44=over 4
41 45
42=item selection (enabled by default) 46=item selection (enabled by default)
43 47
48C<--quoting-style=shell>. 52C<--quoting-style=shell>.
49 53
50A double-click usually selects the word under the cursor, further clicks 54A double-click usually selects the word under the cursor, further clicks
51will enlarge the selection. 55will enlarge the selection.
52 56
57The selection works by trying to match a number of regexes and displaying
58them in increasing order of length. You can add your own regexes by
59specifying resources of the form:
60
61 URxvt.selection.pattern-0: perl-regex
62 URxvt.selection.pattern-1: perl-regex
63 ...
64
65The index number (0, 1...) must not have any holes, and each regex must
66contain at least one pair of capturing parentheses, which will be used for
67the match. For example, the followign adds a regex that matches everything
68between two vertical bars:
69
70 URxvt.selection.pattern-0: \\|([^|]+)\\|
71
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
79You can look at the source of the selection extension to see more
80interesting uses, such as parsing a line from beginning to end.
81
53It also offers the following bindable keyboard command: 82This extension also offers following bindable keyboard commands:
54 83
55=over 4 84=over 4
56 85
57=item rot13 86=item rot13
58 87
69 98
70=item selection-popup (enabled by default) 99=item selection-popup (enabled by default)
71 100
72Binds 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
73text into various other formats/action (such as uri unescaping, perl 102text into various other formats/action (such as uri unescaping, perl
74evalution, 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 };
75 123
76=item searchable-scrollback<hotkey> (enabled by default) 124=item searchable-scrollback<hotkey> (enabled by default)
77 125
78Adds regex search functionality to the scrollback buffer, triggered 126Adds regex search functionality to the scrollback buffer, triggered
79by 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
86bottom. 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
87was 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
88additionally stores the first match in the current line into the primary 136additionally stores the first match in the current line into the primary
89selection. 137selection.
90 138
91=item digital-clock 139=item readline (enabled by default)
92 140
93Displays a digital clock using the built-in overlay. 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
164=item selection-autotransform
165
166This selection allows you to do automatic transforms on a selection
167whenever a selection is made.
168
169It works by specifying perl snippets (most useful is a single C<s///>
170operator) that modify C<$_> as resources:
171
172 URxvt.selection-autotransform.0: transform
173 URxvt.selection-autotransform.1: transform
174 ...
175
176For example, the following will transform selections of the form
177C<filename:number>, often seen in compiler messages, into C<vi +$filename
178$word>:
179
180 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
181
182And this example matches the same,but replaces it with vi-commands you can
183paste directly into your (vi :) editor:
184
185 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
186
187Of course, this can be modified to suit your needs and your editor :)
188
189To expand the example above to typical perl error messages ("XXX at
190FILENAME line YYY."), you need a slightly more elaborate solution:
191
192 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
193 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
194
195The first line tells the selection code to treat the unchanging part of
196every error message as a selection pattern, and the second line transforms
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.
94 209
95=item mark-urls 210=item mark-urls
96 211
97Uses 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
98make them clickable. When middle-clicked, the program specified in the 213make them clickable. When middle-clicked, the program specified in the
99resource C<urlLauncher> (default C<x-www-browser>) will be started with 214resource C<urlLauncher> (default C<x-www-browser>) will be started with
100the URL as first argument. 215the URL as first argument.
101 216
217=item xim-onthespot
218
219This (experimental) perl extension implements OnTheSpot editing. It does
220not work perfectly, and some input methods don't seem to work well with
221OnTheSpot editing in general, but it seems to work at leats for SCIM and
222kinput2.
223
224You enable it by specifying this extension and a preedit style of
225C<OnTheSpot>, i.e.:
226
227 @@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
228
229=item automove-background
230
231This is basically a one-line extension that dynamically changes the background pixmap offset
232to the window position, in effect creating the same effect as pseudo transparency with
233a custom pixmap. No scaling is supported in this mode. Exmaple:
234
235 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
236
102=item block-graphics-to-ascii 237=item block-graphics-to-ascii
103 238
104A not very useful example of filtering all text output to the terminal, 239A not very useful example of filtering all text output to the terminal,
105by replacing all line-drawing characters (U+2500 .. U+259F) by a 240by replacing all line-drawing characters (U+2500 .. U+259F) by a
106similar-looking ascii character. 241similar-looking ascii character.
107 242
243=item digital-clock
244
245Displays a digital clock using the built-in overlay.
246
108=item example-refresh-hooks 247=item example-refresh-hooks
109 248
110Displays a very simple digital clock in the upper right corner of the 249Displays a very simple digital clock in the upper right corner of the
111window. Illustrates overwriting the refresh callbacks to create your own 250window. Illustrates overwriting the refresh callbacks to create your own
112overlays or changes. 251overlays or changes.
252
253=item selection-pastebin
254
255This is a little rarely useful extension that Uploads the selection as
256textfile to a remote site (or does other things). (The implementation is
257not currently secure for use in a multiuser environment as it writes to
258F</tmp> directly.).
259
260It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
261i.e.
262
263 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
264
265Pressing this combination runs a command with C<%> replaced by the name of
266the textfile. This command can be set via a resource:
267
268 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
269
270And the default is likely not useful to anybody but the few people around
271here :)
272
273The name of the textfile is the hex encoded md5 sum of the selection, so
274the same content should lead to the same filename.
275
276After a successful upload the selection will be replaced by the text given
277in the C<selection-pastebin-url> resource (again, the % is the placeholder
278for the filename):
279
280 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
113 281
114=back 282=back
115 283
116=head1 API DOCUMENTATION 284=head1 API DOCUMENTATION
117 285
190called whenever the relevant event happens. 358called whenever the relevant event happens.
191 359
192The first argument passed to them is an extension oject as described in 360The first argument passed to them is an extension oject as described in
193the in the C<Extension Objects> section. 361the in the C<Extension Objects> section.
194 362
195B<All> of these hooks must return a boolean value. If it is true, then the 363B<All> of these hooks must return a boolean value. If any of the called
196event counts as being I<consumed>, and the invocation of other hooks is 364hooks returns true, then the event counts as being I<consumed>, and the
197skipped, and the relevant action might not be carried out by the C++ code. 365relevant action might not be carried out by the C++ code.
198 366
199I<< When in doubt, return a false value (preferably C<()>). >> 367I<< When in doubt, return a false value (preferably C<()>). >>
200 368
201=over 4 369=over 4
202 370
203=item on_init $term 371=item on_init $term
204 372
205Called after a new terminal object has been initialized, but before 373Called after a new terminal object has been initialized, but before
206windows are created or the command gets run. Most methods are unsafe to 374windows are created or the command gets run. Most methods are unsafe to
207call or deliver senseless data, as terminal size and other characteristics 375call or deliver senseless data, as terminal size and other characteristics
208have not yet been determined. You can safely query and change resources, 376have not yet been determined. You can safely query and change resources
209though. 377and options, though. For many purposes the C<on_start> hook is a better
378place.
379
380=item on_start $term
381
382Called at the very end of initialisation of a new terminal, just before
383trying to map (display) the toplevel and returning to the mainloop.
384
385=item on_destroy $term
386
387Called whenever something tries to destroy terminal, when the terminal is
388still fully functional (not for long, though).
210 389
211=item on_reset $term 390=item on_reset $term
212 391
213Called after the screen is "reset" for any reason, such as resizing or 392Called after the screen is "reset" for any reason, such as resizing or
214control sequences. Here is where you can react on changes to size-related 393control sequences. Here is where you can react on changes to size-related
215variables. 394variables.
216 395
217=item on_start $term 396=item on_child_start $term, $pid
218 397
219Called at the very end of initialisation of a new terminal, just before 398Called just after the child process has been C<fork>ed.
220returning to the mainloop. 399
400=item on_child_exit $term, $status
401
402Called just after the child process has exited. C<$status> is the status
403from C<waitpid>.
221 404
222=item on_sel_make $term, $eventtime 405=item on_sel_make $term, $eventtime
223 406
224Called whenever a selection has been made by the user, but before the 407Called whenever a selection has been made by the user, but before the
225selection text is copied, so changes to the beginning, end or type of the 408selection text is copied, so changes to the beginning, end or type of the
318 501
319Called whenever the user presses a key combination that has a 502Called whenever the user presses a key combination that has a
320C<perl:string> action bound to it (see description of the B<keysym> 503C<perl:string> action bound to it (see description of the B<keysym>
321resource in the @@RXVT_NAME@@(1) manpage). 504resource in the @@RXVT_NAME@@(1) manpage).
322 505
506=item on_x_event $term, $event
507
508Called on every X event received on the vt window (and possibly other
509windows). Should only be used as a last resort. Most event structure
510members are not passed.
511
323=item on_focus_in $term 512=item on_focus_in $term
324 513
325Called whenever the window gets the keyboard focus, before rxvt-unicode 514Called whenever the window gets the keyboard focus, before rxvt-unicode
326does focus in processing. 515does focus in processing.
327 516
328=item on_focus_out $term 517=item on_focus_out $term
329 518
330Called wheneever the window loses keyboard focus, before rxvt-unicode does 519Called wheneever the window loses keyboard focus, before rxvt-unicode does
331focus out processing. 520focus out processing.
332 521
522=item on_configure_notify $term, $event
523
524=item on_property_notify $term, $event
525
333=item on_key_press $term, $event, $keysym, $octets 526=item on_key_press $term, $event, $keysym, $octets
334 527
335=item on_key_release $term, $event, $keysym 528=item on_key_release $term, $event, $keysym
336 529
337=item on_button_press $term, $event 530=item on_button_press $term, $event
346 539
347Called whenever the corresponding X event is received for the terminal If 540Called whenever the corresponding X event is received for the terminal If
348the hook returns true, then the even will be ignored by rxvt-unicode. 541the hook returns true, then the even will be ignored by rxvt-unicode.
349 542
350The event is a hash with most values as named by Xlib (see the XEvent 543The event is a hash with most values as named by Xlib (see the XEvent
351manpage), with the additional members C<row> and C<col>, which are the row 544manpage), with the additional members C<row> and C<col>, which are the
352and column under the mouse cursor. 545(real, not screen-based) row and column under the mouse cursor.
353 546
354C<on_key_press> additionally receives the string rxvt-unicode would 547C<on_key_press> additionally receives the string rxvt-unicode would
355output, if any, in locale-specific encoding. 548output, if any, in locale-specific encoding.
356 549
357subwindow. 550subwindow.
551
552=item on_client_message $term, $event
553
554=item on_wm_protocols $term, $event
555
556=item on_wm_delete_window $term, $event
557
558Called when various types of ClientMessage events are received (all with
559format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
358 560
359=back 561=back
360 562
361=cut 563=cut
362 564
368use Scalar::Util (); 570use Scalar::Util ();
369use List::Util (); 571use List::Util ();
370 572
371our $VERSION = 1; 573our $VERSION = 1;
372our $TERM; 574our $TERM;
575our @TERM_INIT;
576our @TERM_EXT;
373our @HOOKNAME; 577our @HOOKNAME;
374our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 578our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
375our %OPTION; 579our %OPTION;
376 580
377our $LIBDIR; 581our $LIBDIR;
378our $RESNAME; 582our $RESNAME;
379our $RESCLASS; 583our $RESCLASS;
380our $RXVTNAME; 584our $RXVTNAME;
381 585
586our $NOCHAR = chr 0xffff;
587
382=head2 Variables in the C<urxvt> Package 588=head2 Variables in the C<urxvt> Package
383 589
384=over 4 590=over 4
385 591
386=item $urxvt::LIBDIR 592=item $urxvt::LIBDIR
398 604
399=item $urxvt::TERM 605=item $urxvt::TERM
400 606
401The current terminal. This variable stores the current C<urxvt::term> 607The current terminal. This variable stores the current C<urxvt::term>
402object, whenever a callback/hook is executing. 608object, whenever a callback/hook is executing.
609
610=item @urxvt::TERM_INIT
611
612All coderefs in this array will be called as methods of the next newly
613created C<urxvt::term> object (during the C<on_init> phase). The array
614gets cleared before the codereferences that were in it are being executed,
615so coderefs can push themselves onto it again if they so desire.
616
617This complements to the perl-eval commandline option, but gets executed
618first.
619
620=item @urxvt::TERM_EXT
621
622Works similar to C<@TERM_INIT>, but contains perl package/class names, which
623get registered as normal extensions after calling the hooks in C<@TERM_INIT>
624but before other extensions. Gets cleared just like C<@TERM_INIT>.
403 625
404=back 626=back
405 627
406=head2 Functions in the C<urxvt> Package 628=head2 Functions in the C<urxvt> Package
407 629
422Using this function has the advantage that its output ends up in the 644Using this function has the advantage that its output ends up in the
423correct place, e.g. on stderr of the connecting urxvtc client. 645correct place, e.g. on stderr of the connecting urxvtc client.
424 646
425Messages have a size limit of 1023 bytes currently. 647Messages have a size limit of 1023 bytes currently.
426 648
427=item $is_safe = urxvt::safe
428
429Returns true when it is safe to do potentially unsafe things, such as
430evaluating perl code specified by the user. This is true when urxvt was
431started setuid or setgid.
432
433=item $time = urxvt::NOW 649=item $time = urxvt::NOW
434 650
435Returns the "current time" (as per the event loop). 651Returns the "current time" (as per the event loop).
436 652
437=item urxvt::CurrentTime 653=item urxvt::CurrentTime
438 654
439=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 655=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
440Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 656Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
441Button4Mask, Button5Mask, AnyModifier 657Button4Mask, Button5Mask, AnyModifier
658
659=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
660ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
661PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
662Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
663KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
664ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
665FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
666
667=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
668EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
669GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
670UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
671ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
672CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
673SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
442 674
443Various constants for use in X calls and event processing. 675Various constants for use in X calls and event processing.
444 676
445=back 677=back
446 678
497=back 729=back
498 730
499=cut 731=cut
500 732
501BEGIN { 733BEGIN {
502 urxvt->bootstrap;
503
504 # overwrite perl's warn 734 # overwrite perl's warn
505 *CORE::GLOBAL::warn = sub { 735 *CORE::GLOBAL::warn = sub {
506 my $msg = join "", @_; 736 my $msg = join "", @_;
507 $msg .= "\n" 737 $msg .= "\n"
508 unless $msg =~ /\n$/; 738 unless $msg =~ /\n$/;
509 urxvt::warn ($msg); 739 urxvt::warn ($msg);
510 }; 740 };
511
512 # %ENV is the original startup environment
513 delete $ENV{IFS};
514 delete $ENV{CDPATH};
515 delete $ENV{BASH_ENV};
516 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
517} 741}
518 742
519my @hook_count; 743no warnings 'utf8';
744
520my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 745my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
521 746
522sub verbose { 747sub verbose {
523 my ($level, $msg) = @_; 748 my ($level, $msg) = @_;
524 warn "$msg\n" if $level <= $verbosity; 749 warn "$msg\n" if $level <= $verbosity;
525} 750}
526 751
527my $extension_pkg = "extension0000";
528my %extension_pkg; 752my %extension_pkg;
529 753
530# load a single script into its own package, once only 754# load a single script into its own package, once only
531sub extension_package($) { 755sub extension_package($) {
532 my ($path) = @_; 756 my ($path) = @_;
533 757
534 $extension_pkg{$path} ||= do { 758 $extension_pkg{$path} ||= do {
535 my $pkg = "urxvt::" . ($extension_pkg++); 759 $path =~ /([^\/\\]+)$/;
760 my $pkg = $1;
761 $pkg =~ s/[^[:word:]]/_/g;
762 $pkg = "urxvt::ext::$pkg";
536 763
537 verbose 3, "loading extension '$path' into package '$pkg'"; 764 verbose 3, "loading extension '$path' into package '$pkg'";
538 765
539 open my $fh, "<:raw", $path 766 open my $fh, "<:raw", $path
540 or die "$path: $!"; 767 or die "$path: $!";
541 768
542 my $source = untaint 769 my $source =
543 "package $pkg; use strict; use utf8;\n" 770 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
544 . "use base urxvt::term::extension::;\n"
545 . "#line 1 \"$path\"\n{\n" 771 . "#line 1 \"$path\"\n{\n"
546 . (do { local $/; <$fh> }) 772 . (do { local $/; <$fh> })
547 . "\n};\n1"; 773 . "\n};\n1";
548 774
549 eval $source 775 eval $source
563 if ($htype == 0) { # INIT 789 if ($htype == 0) { # INIT
564 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 790 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
565 791
566 my %ext_arg; 792 my %ext_arg;
567 793
794 {
795 my @init = @TERM_INIT;
796 @TERM_INIT = ();
797 $_->($TERM) for @init;
798 my @pkg = @TERM_EXT;
799 @TERM_EXT = ();
800 $TERM->register_package ($_) for @pkg;
801 }
802
568 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 803 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
569 if ($_ eq "default") { 804 if ($_ eq "default") {
570 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 805 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
571 } elsif (/^-(.*)$/) { 806 } elsif (/^-(.*)$/) {
572 delete $ext_arg{$1}; 807 delete $ext_arg{$1};
573 } elsif (/^([^<]+)<(.*)>$/) { 808 } elsif (/^([^<]+)<(.*)>$/) {
574 push @{ $ext_arg{$1} }, $2; 809 push @{ $ext_arg{$1} }, $2;
575 } else { 810 } else {
598 if $verbosity >= 10; 833 if $verbosity >= 10;
599 834
600 keys %$cb; 835 keys %$cb;
601 836
602 while (my ($pkg, $cb) = each %$cb) { 837 while (my ($pkg, $cb) = each %$cb) {
603 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 838 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
604 and last; 839 $retval ||= $retval_;
605 840
606 if ($@) { 841 if ($@) {
607 $TERM->ungrab; # better to lose the grab than the session 842 $TERM->ungrab; # better to lose the grab than the session
608 warn $@; 843 warn $@;
609 } 844 }
612 verbose 11, "$HOOKNAME[$htype] returning <$retval>" 847 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
613 if $verbosity >= 11; 848 if $verbosity >= 11;
614 } 849 }
615 850
616 if ($htype == 1) { # DESTROY 851 if ($htype == 1) { # DESTROY
617 if (my $hook = delete $TERM->{_hook}) {
618 for my $htype (0..$#$hook) {
619 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
620 or set_should_invoke $htype, 0;
621 }
622 }
623
624 # clear package objects 852 # clear package objects
625 %$_ = () for values %{ $TERM->{_pkg} }; 853 %$_ = () for values %{ $TERM->{_pkg} };
626 854
627 # clear package 855 # clear package
628 %$TERM = (); 856 %$TERM = ();
629 } 857 }
630 858
631 $retval 859 $retval
632}
633
634sub exec_async(@) {
635 my $pid = fork;
636
637 return
638 if !defined $pid or $pid;
639
640 %ENV = %{ $TERM->env };
641
642 exec @_;
643 _exit 255;
644} 860}
645 861
646# urxvt::term::extension 862# urxvt::term::extension
647 863
648package urxvt::term::extension; 864package urxvt::term::extension;
654 while (my ($name, $cb) = each %hook) { 870 while (my ($name, $cb) = each %hook) {
655 my $htype = $HOOKTYPE{uc $name}; 871 my $htype = $HOOKTYPE{uc $name};
656 defined $htype 872 defined $htype
657 or Carp::croak "unsupported hook type '$name'"; 873 or Carp::croak "unsupported hook type '$name'";
658 874
875 $self->set_should_invoke ($htype, +1)
659 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 876 unless exists $self->{term}{_hook}[$htype]{$pkg};
660 $hook_count[$htype]++
661 or urxvt::set_should_invoke $htype, 1;
662 }
663 877
664 $self->{term}{_hook}[$htype]{$pkg} = $cb; 878 $self->{term}{_hook}[$htype]{$pkg} = $cb;
665 } 879 }
666} 880}
667 881
672 for my $name (@hook) { 886 for my $name (@hook) {
673 my $htype = $HOOKTYPE{uc $name}; 887 my $htype = $HOOKTYPE{uc $name};
674 defined $htype 888 defined $htype
675 or Carp::croak "unsupported hook type '$name'"; 889 or Carp::croak "unsupported hook type '$name'";
676 890
891 $self->set_should_invoke ($htype, -1)
677 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 892 if delete $self->{term}{_hook}[$htype]{$pkg};
678 --$hook_count[$htype]
679 or urxvt::set_should_invoke $htype, 0;
680 }
681 } 893 }
682} 894}
683 895
684our $AUTOLOAD; 896our $AUTOLOAD;
685 897
791# find on_xxx subs in the package and register them 1003# find on_xxx subs in the package and register them
792# as hooks 1004# as hooks
793sub register_package { 1005sub register_package {
794 my ($self, $pkg, $argv) = @_; 1006 my ($self, $pkg, $argv) = @_;
795 1007
1008 no strict 'refs';
1009
1010 urxvt::verbose 6, "register package $pkg to $self";
1011
1012 @{"$pkg\::ISA"} = urxvt::term::extension::;
1013
796 my $proxy = bless { 1014 my $proxy = bless {
797 _pkg => $pkg, 1015 _pkg => $pkg,
798 argv => $argv, 1016 argv => $argv,
799 }, $pkg; 1017 }, $pkg;
800 Scalar::Util::weaken ($proxy->{term} = $self); 1018 Scalar::Util::weaken ($proxy->{term} = $self);
831 1049
832Destroy the terminal object (close the window, free resources 1050Destroy the terminal object (close the window, free resources
833etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1051etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
834watchers (timers, io watchers) are still active. 1052watchers (timers, io watchers) are still active.
835 1053
1054=item $term->exec_async ($cmd[, @args])
1055
1056Works like the combination of the C<fork>/C<exec> builtins, which executes
1057("starts") programs in the background. This function takes care of setting
1058the user environment before exec'ing the command (e.g. C<PATH>) and should
1059be preferred over explicit calls to C<exec> or C<system>.
1060
1061Returns the pid of the subprocess or C<undef> on error.
1062
1063=cut
1064
1065sub exec_async {
1066 my $self = shift;
1067
1068 my $pid = fork;
1069
1070 return $pid
1071 if !defined $pid or $pid;
1072
1073 %ENV = %{ $self->env };
1074
1075 exec @_;
1076 urxvt::_exit 255;
1077}
1078
836=item $isset = $term->option ($optval[, $set]) 1079=item $isset = $term->option ($optval[, $set])
837 1080
838Returns true if the option specified by C<$optval> is enabled, and 1081Returns true if the option specified by C<$optval> is enabled, and
839optionally change it. All option values are stored by name in the hash 1082optionally change it. All option values are stored by name in the hash
840C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. 1083C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
842Here is a a likely non-exhaustive list of option names, please see the 1085Here is a a likely non-exhaustive list of option names, please see the
843source file F</src/optinc.h> to see the actual list: 1086source file F</src/optinc.h> to see the actual list:
844 1087
845 borderLess console cursorBlink cursorUnderline hold iconic insecure 1088 borderLess console cursorBlink cursorUnderline hold iconic insecure
846 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1089 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
847 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1090 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
848 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1091 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
849 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1092 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
850 tripleclickwords utmpInhibit visualBell 1093 transparent tripleclickwords utmpInhibit visualBell
851 1094
852=item $value = $term->resource ($name[, $newval]) 1095=item $value = $term->resource ($name[, $newval])
853 1096
854Returns the current resource value associated with a given name and 1097Returns the current resource value associated with a given name and
855optionally sets a new value. Setting values is most useful in the C<init> 1098optionally sets a new value. Setting values is most useful in the C<init>
872 1115
873 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1116 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
874 borderLess color cursorBlink cursorUnderline cutchars delete_key 1117 borderLess color cursorBlink cursorUnderline cutchars delete_key
875 display_name embed ext_bwidth fade font geometry hold iconName 1118 display_name embed ext_bwidth fade font geometry hold iconName
876 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1119 imFont imLocale inputMethod insecure int_bwidth intensityStyles
877 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1120 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
878 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1121 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
879 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1122 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
880 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1123 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
881 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1124 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
882 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1125 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
883 shade term_name title transparent transparent_all tripleclickwords 1126 secondaryScreen secondaryScroll selectstyle shade term_name title
884 utmpInhibit visualBell 1127 transient_for transparent transparent_all tripleclickwords utmpInhibit
1128 visualBell
885 1129
886=cut 1130=cut
887 1131
888sub resource($$;$) { 1132sub resource($$;$) {
889 my ($self, $name) = (shift, shift); 1133 my ($self, $name) = (shift, shift);
1063 1307
1064Normally its not a good idea to use this function, as programs might be 1308Normally its not a good idea to use this function, as programs might be
1065confused by changes in cursor position or scrolling. Its useful inside a 1309confused by changes in cursor position or scrolling. Its useful inside a
1066C<on_add_lines> hook, though. 1310C<on_add_lines> hook, though.
1067 1311
1312=item $term->scr_change_screen ($screen)
1313
1314Switch to given screen - 0 primary, 1 secondary.
1315
1068=item $term->cmd_parse ($octets) 1316=item $term->cmd_parse ($octets)
1069 1317
1070Similar to C<scr_add_lines>, but the argument must be in the 1318Similar to C<scr_add_lines>, but the argument must be in the
1071locale-specific encoding of the terminal and can contain command sequences 1319locale-specific encoding of the terminal and can contain command sequences
1072(escape codes) that will be interpreted. 1320(escape codes) that will be interpreted.
1082Replaces the event mask of the pty watcher by the given event mask. Can 1330Replaces the event mask of the pty watcher by the given event mask. Can
1083be used to suppress input and output handling to the pty/tty. See the 1331be used to suppress input and output handling to the pty/tty. See the
1084description of C<< urxvt::timer->events >>. Make sure to always restore 1332description of C<< urxvt::timer->events >>. Make sure to always restore
1085the previous value. 1333the previous value.
1086 1334
1335=item $fd = $term->pty_fd
1336
1337Returns the master file descriptor for the pty in use, or C<-1> if no pty
1338is used.
1339
1087=item $windowid = $term->parent 1340=item $windowid = $term->parent
1088 1341
1089Return the window id of the toplevel window. 1342Return the window id of the toplevel window.
1090 1343
1091=item $windowid = $term->vt 1344=item $windowid = $term->vt
1092 1345
1093Return the window id of the terminal window. 1346Return the window id of the terminal window.
1094 1347
1348=item $term->vt_emask_add ($x_event_mask)
1349
1350Adds the specified events to the vt event mask. Useful e.g. when you want
1351to receive pointer events all the times:
1352
1353 $term->vt_emask_add (urxvt::PointerMotionMask);
1354
1095=item $window_width = $term->width 1355=item $window_width = $term->width
1096 1356
1097=item $window_height = $term->height 1357=item $window_height = $term->height
1098 1358
1099=item $font_width = $term->fwidth 1359=item $font_width = $term->fwidth
1112 1372
1113=item $max_scrollback = $term->saveLines 1373=item $max_scrollback = $term->saveLines
1114 1374
1115=item $nrow_plus_saveLines = $term->total_rows 1375=item $nrow_plus_saveLines = $term->total_rows
1116 1376
1117=item $lines_in_scrollback = $term->nsaved 1377=item $topmost_scrollback_row = $term->top_row
1118 1378
1119Return various integers describing terminal characteristics. 1379Return various integers describing terminal characteristics.
1120 1380
1121=item $x_display = $term->display_id 1381=item $x_display = $term->display_id
1122 1382
1148=item $modifiermask = $term->ModNumLockMask 1408=item $modifiermask = $term->ModNumLockMask
1149 1409
1150Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1410Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1151AltGr), the meta key (often Alt) and the num lock key, if applicable. 1411AltGr), the meta key (often Alt) and the num lock key, if applicable.
1152 1412
1413=item $screen = $term->current_screen
1414
1415Returns the currently displayed screen (0 primary, 1 secondary).
1416
1417=item $cursor_is_hidden = $term->hidden_cursor
1418
1419Returns wether the cursor is currently hidden or not.
1420
1153=item $view_start = $term->view_start ([$newvalue]) 1421=item $view_start = $term->view_start ([$newvalue])
1154 1422
1155Returns the negative row number of the topmost line. Minimum value is 1423Returns the row number of the topmost displayed line. Maximum value is
1156C<0>, which displays the normal terminal contents. Larger values scroll 1424C<0>, which displays the normal terminal contents. Lower values scroll
1157this many lines into the scrollback buffer. 1425this many lines into the scrollback buffer.
1158 1426
1159=item $term->want_refresh 1427=item $term->want_refresh
1160 1428
1161Requests a screen refresh. At the next opportunity, rxvt-unicode will 1429Requests a screen refresh. At the next opportunity, rxvt-unicode will
1176line, starting at column C<$start_col> (default C<0>), which is useful 1444line, starting at column C<$start_col> (default C<0>), which is useful
1177to replace only parts of a line. The font index in the rendition will 1445to replace only parts of a line. The font index in the rendition will
1178automatically be updated. 1446automatically be updated.
1179 1447
1180C<$text> is in a special encoding: tabs and wide characters that use more 1448C<$text> is in a special encoding: tabs and wide characters that use more
1181than one cell when displayed are padded with urxvt::NOCHAR characters 1449than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1182(C<chr 65535>). Characters with combining characters and other characters 1450characters. Characters with combining characters and other characters that
1183that do not fit into the normal tetx encoding will be replaced with 1451do not fit into the normal tetx encoding will be replaced with characters
1184characters in the private use area. 1452in the private use area.
1185 1453
1186You have to obey this encoding when changing text. The advantage is 1454You have to obey this encoding when changing text. The advantage is
1187that C<substr> and similar functions work on screen cells and not on 1455that C<substr> and similar functions work on screen cells and not on
1188characters. 1456characters.
1189 1457
1364 1632
1365Calls XUngrab for the most recent grab. Is called automatically on 1633Calls XUngrab for the most recent grab. Is called automatically on
1366evaluation errors, as it is better to lose the grab in the error case as 1634evaluation errors, as it is better to lose the grab in the error case as
1367the session. 1635the session.
1368 1636
1637=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1638
1639=item $atom_name = $term->XGetAtomName ($atom)
1640
1641=item @atoms = $term->XListProperties ($window)
1642
1643=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1644
1645=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1646
1647=item $term->XDeleteProperty ($window, $property)
1648
1649=item $window = $term->DefaultRootWindow
1650
1651=item $term->XReparentWindow ($window, $parent, [$x, $y])
1652
1653=item $term->XMapWindow ($window)
1654
1655=item $term->XUnmapWindow ($window)
1656
1657=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1658
1659=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1660
1661=item $term->XChangeInput ($window, $add_events[, $del_events])
1662
1663Various X or X-related functions. The C<$term> object only serves as
1664the source of the display, otherwise those functions map more-or-less
1665directory onto the X functions of the same name.
1666
1369=back 1667=back
1370 1668
1371=cut 1669=cut
1372 1670
1373package urxvt::popup; 1671package urxvt::popup;
1474 my $env = $self->{term}->env; 1772 my $env = $self->{term}->env;
1475 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. 1773 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1476 delete $env->{LC_ALL}; 1774 delete $env->{LC_ALL};
1477 $env->{LC_CTYPE} = $self->{term}->locale; 1775 $env->{LC_CTYPE} = $self->{term}->locale;
1478 1776
1479 urxvt::term->new ($env, $self->{term}->resource ("name"), 1777 urxvt::term->new ($env, "popup",
1480 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1778 "--perl-lib" => "", "--perl-ext-common" => "",
1779 "-pty-fd" => -1, "-sl" => 0,
1780 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1481 "--transient-for" => $self->{term}->parent, 1781 "--transient-for" => $self->{term}->parent,
1482 "-display" => $self->{term}->display_id, 1782 "-display" => $self->{term}->display_id,
1483 "-pe" => "urxvt-popup") 1783 "-pe" => "urxvt-popup")
1484 or die "unable to create popup window\n"; 1784 or die "unable to create popup window\n";
1485} 1785}
1490 delete $self->{term}{_destroy}{$self}; 1790 delete $self->{term}{_destroy}{$self};
1491 $self->{term}->ungrab; 1791 $self->{term}->ungrab;
1492} 1792}
1493 1793
1494=back 1794=back
1795
1796=cut
1797
1798package urxvt::watcher;
1799
1800@urxvt::timer::ISA = __PACKAGE__;
1801@urxvt::iow::ISA = __PACKAGE__;
1802@urxvt::pw::ISA = __PACKAGE__;
1803@urxvt::iw::ISA = __PACKAGE__;
1495 1804
1496=head2 The C<urxvt::timer> Class 1805=head2 The C<urxvt::timer> Class
1497 1806
1498This class implements timer watchers/events. Time is represented as a 1807This class implements timer watchers/events. Time is represented as a
1499fractional number of seconds since the epoch. Example: 1808fractional number of seconds since the epoch. Example:
1537Start the timer. 1846Start the timer.
1538 1847
1539=item $timer = $timer->start ($tstamp) 1848=item $timer = $timer->start ($tstamp)
1540 1849
1541Set the event trigger time to C<$tstamp> and start the timer. 1850Set the event trigger time to C<$tstamp> and start the timer.
1851
1852=item $timer = $timer->after ($delay)
1853
1854Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1542 1855
1543=item $timer = $timer->stop 1856=item $timer = $timer->stop
1544 1857
1545Stop the timer. 1858Stop the timer.
1546 1859
1593 1906
1594Stop watching for events on the given filehandle. 1907Stop watching for events on the given filehandle.
1595 1908
1596=back 1909=back
1597 1910
1911=head2 The C<urxvt::iw> Class
1912
1913This class implements idle watchers, that get called automatically when
1914the process is idle. They should return as fast as possible, after doing
1915some useful work.
1916
1917=over 4
1918
1919=item $iw = new urxvt::iw
1920
1921Create a new idle watcher object in stopped state.
1922
1923=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1924
1925Set the callback to be called when the watcher triggers.
1926
1927=item $timer = $timer->start
1928
1929Start the watcher.
1930
1931=item $timer = $timer->stop
1932
1933Stop the watcher.
1934
1935=back
1936
1937=head2 The C<urxvt::pw> Class
1938
1939This class implements process watchers. They create an event whenever a
1940process exits, after which they stop automatically.
1941
1942 my $pid = fork;
1943 ...
1944 $term->{pw} = urxvt::pw
1945 ->new
1946 ->start ($pid)
1947 ->cb (sub {
1948 my ($pw, $exit_status) = @_;
1949 ...
1950 });
1951
1952=over 4
1953
1954=item $pw = new urxvt::pw
1955
1956Create a new process watcher in stopped state.
1957
1958=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1959
1960Set the callback to be called when the timer triggers.
1961
1962=item $pw = $timer->start ($pid)
1963
1964Tells the wqtcher to start watching for process C<$pid>.
1965
1966=item $pw = $pw->stop
1967
1968Stop the watcher.
1969
1970=back
1971
1598=head1 ENVIRONMENT 1972=head1 ENVIRONMENT
1599 1973
1600=head2 URXVT_PERL_VERBOSITY 1974=head2 URXVT_PERL_VERBOSITY
1601 1975
1602This variable controls the verbosity level of the perl extension. Higher 1976This variable controls the verbosity level of the perl extension. Higher

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