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Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.78 by root, Wed Jan 11 01:01:52 2006 UTC vs.
Revision 1.117 by ayin, Fri Jan 20 18:02:43 2006 UTC

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 39
40Or by adding them to the resource for extensions loaded by default:
41
42 URxvt.perl-ext-common: default,automove-background,selection-autotransform
43
40=over 4 44=over 4
41 45
42=item selection (enabled by default) 46=item selection (enabled by default)
43 47
44(More) intelligent selection. This extension tries to be more intelligent 48(More) intelligent selection. This extension tries to be more intelligent
45when the user extends selections (double-click). Right now, it tries to 49when the user extends selections (double-click and further clicks). Right
46select urls and complete shell-quoted arguments, which is very convenient, 50now, it tries to select words, urls and complete shell-quoted
47too, if your F<ls> supports C<--quoting-style=shell>. 51arguments, which is very convenient, too, if your F<ls> supports
52C<--quoting-style=shell>.
48 53
54A double-click usually selects the word under the cursor, further clicks
55will enlarge the selection.
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
72You can look at the source of the selection extension to see more
73interesting uses, such as parsing a line from beginning to end.
74
49It also offers the following bindable keyboard command: 75This extension also offers following bindable keyboard commands:
50 76
51=over 4 77=over 4
52 78
53=item rot13 79=item rot13
54 80
65 91
66=item selection-popup (enabled by default) 92=item selection-popup (enabled by default)
67 93
68Binds 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
69text into various other formats/action (such as uri unescaping, perl 95text into various other formats/action (such as uri unescaping, perl
70evalution, 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 @{ $self->{term}{selection_popup_hook} }, sub {
113 /a/ ? ("a to be" => sub { s/a/b/g }
114 : ()
115 };
71 116
72=item searchable-scrollback<hotkey> (enabled by default) 117=item searchable-scrollback<hotkey> (enabled by default)
73 118
74Adds regex search functionality to the scrollback buffer, triggered 119Adds regex search functionality to the scrollback buffer, triggered
75by a hotkey (default: C<M-s>). When in search mode, normal terminal 120by a hotkey (default: C<M-s>). While in search mode, normal terminal
76input/output is suspended. 121input/output is suspended and a regex is displayed at the bottom of the
122screen.
77 123
78C</> starts an incremental regex search, C<n> searches further, C<p> or 124Inputting characters appends them to the regex and continues incremental
79C<N> jump to the previous match, C<G> jumps to the bottom and clears the 125search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
80history, C<enter> leaves search mode at the current position and C<escape> 126search upwards/downwards in the scrollback buffer, C<End> jumps to the
81returns to the original position. 127bottom. C<Escape> leaves search mode and returns to the point where search
128was started, while C<Enter> or C<Return> stay at the current position and
129additionally stores the first match in the current line into the primary
130selection.
82 131
83=item digital-clock 132=item selection-autotransform
84 133
85Displays a digital clock using the built-in overlay. 134This selection allows you to do automatic transforms on a selection
135whenever a selection is made.
136
137It works by specifying perl snippets (most useful is a single C<s///>
138operator) that modify C<$_> as resources:
139
140 URxvt.selection-autotransform.0: transform
141 URxvt.selection-autotransform.1: transform
142 ...
143
144For example, the following will transform selections of the form
145C<filename:number>, often seen in compiler messages, into C<vi +$filename
146$word>:
147
148 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
149
150And this example matches the same,but replaces it with vi-commands you can
151paste directly into your (vi :) editor:
152
153 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
154
155Of course, this can be modified to suit your needs and your editor :)
156
157To expand the example above to typical perl error messages ("XXX at
158FILENAME line YYY."), you need a slightly more elaborate solution:
159
160 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
161 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
162
163The first line tells the selection code to treat the unchanging part of
164every error message as a selection pattern, and the second line transforms
165the message into vi commands to load the file.
166
167=item tabbed
168
169This transforms the terminal into a tabbar with additional terminals, that
170is, it implements what is commonly refered to as "tabbed terminal". The topmost line
171displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
172button per tab.
173
174Clicking a button will activate that tab. Pressing B<Shift-Left> and
175B<Shift-Right> will switch to the tab left or right of the current one,
176while B<Shift-Down> creates a new tab.
86 177
87=item mark-urls 178=item mark-urls
88 179
89Uses per-line display filtering (C<on_line_update>) to underline urls. 180Uses per-line display filtering (C<on_line_update>) to underline urls and
181make them clickable. When middle-clicked, the program specified in the
182resource C<urlLauncher> (default C<x-www-browser>) will be started with
183the URL as first argument.
184
185=item automove-background
186
187This is basically a one-line extension that dynamically changes the background pixmap offset
188to the window position, in effect creating the same effect as pseudo transparency with
189a custom pixmap. No scaling is supported in this mode. Exmaple:
190
191 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
90 192
91=item block-graphics-to-ascii 193=item block-graphics-to-ascii
92 194
93A not very useful example of filtering all text output to the terminal, 195A not very useful example of filtering all text output to the terminal,
94by replacing all line-drawing characters (U+2500 .. U+259F) by a 196by replacing all line-drawing characters (U+2500 .. U+259F) by a
95similar-looking ascii character. 197similar-looking ascii character.
96 198
199=item digital-clock
200
201Displays a digital clock using the built-in overlay.
202
97=item example-refresh-hooks 203=item example-refresh-hooks
98 204
99Displays a very simple digital clock in the upper right corner of the 205Displays a very simple digital clock in the upper right corner of the
100window. Illustrates overwriting the refresh callbacks to create your own 206window. Illustrates overwriting the refresh callbacks to create your own
101overlays or changes. 207overlays or changes.
208
209=item selection-pastebin
210
211This is a little rarely useful extension that Uploads the selection as
212textfile to a remote site (or does other things). (The implementation is
213not currently secure for use in a multiuser environment as it writes to
214F</tmp> directly.).
215
216It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
217i.e.
218
219 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
220
221Pressing this combination runs a command with C<%> replaced by the name of
222the textfile. This command can be set via a resource:
223
224 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
225
226And the default is likely not useful to anybody but the few people around
227here :)
228
229The name of the textfile is the hex encoded md5 sum of the selection, so
230the same content should lead to the same filename.
231
232After a successful upload the selection will be replaced by the text given
233in the C<selection-pastebin-url> resource (again, the % is the placeholder
234for the filename):
235
236 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
102 237
103=back 238=back
104 239
105=head1 API DOCUMENTATION 240=head1 API DOCUMENTATION
106 241
179called whenever the relevant event happens. 314called whenever the relevant event happens.
180 315
181The first argument passed to them is an extension oject as described in 316The first argument passed to them is an extension oject as described in
182the in the C<Extension Objects> section. 317the in the C<Extension Objects> section.
183 318
184B<All> of these hooks must return a boolean value. If it is true, then the 319B<All> of these hooks must return a boolean value. If any of the called
185event counts as being I<consumed>, and the invocation of other hooks is 320hooks returns true, then the event counts as being I<consumed>, and the
186skipped, and the relevant action might not be carried out by the C++ code. 321relevant action might not be carried out by the C++ code.
187 322
188I<< When in doubt, return a false value (preferably C<()>). >> 323I<< When in doubt, return a false value (preferably C<()>). >>
189 324
190=over 4 325=over 4
191 326
192=item on_init $term 327=item on_init $term
193 328
194Called after a new terminal object has been initialized, but before 329Called after a new terminal object has been initialized, but before
195windows are created or the command gets run. Most methods are unsafe to 330windows are created or the command gets run. Most methods are unsafe to
196call or deliver senseless data, as terminal size and other characteristics 331call or deliver senseless data, as terminal size and other characteristics
197have not yet been determined. You can safely query and change resources, 332have not yet been determined. You can safely query and change resources
198though. 333and options, though. For many purposes the C<on_start> hook is a better
334place.
335
336=item on_start $term
337
338Called at the very end of initialisation of a new terminal, just before
339trying to map (display) the toplevel and returning to the mainloop.
340
341=item on_destroy $term
342
343Called whenever something tries to destroy terminal, before doing anything
344yet. If this hook returns true, then destruction is skipped, but this is
345rarely a good idea.
199 346
200=item on_reset $term 347=item on_reset $term
201 348
202Called after the screen is "reset" for any reason, such as resizing or 349Called after the screen is "reset" for any reason, such as resizing or
203control sequences. Here is where you can react on changes to size-related 350control sequences. Here is where you can react on changes to size-related
204variables. 351variables.
205 352
206=item on_start $term 353=item on_child_start $term, $pid
207 354
208Called at the very end of initialisation of a new terminal, just before 355Called just after the child process has been C<fork>ed.
209returning to the mainloop. 356
357=item on_child_exit $term, $status
358
359Called just after the child process has exited. C<$status> is the status
360from C<waitpid>.
210 361
211=item on_sel_make $term, $eventtime 362=item on_sel_make $term, $eventtime
212 363
213Called whenever a selection has been made by the user, but before the 364Called whenever a selection has been made by the user, but before the
214selection text is copied, so changes to the beginning, end or type of the 365selection text is copied, so changes to the beginning, end or type of the
228=item on_sel_extend $term 379=item on_sel_extend $term
229 380
230Called whenever the user tries to extend the selection (e.g. with a double 381Called whenever the user tries to extend the selection (e.g. with a double
231click) and is either supposed to return false (normal operation), or 382click) and is either supposed to return false (normal operation), or
232should extend the selection itelf and return true to suppress the built-in 383should extend the selection itelf and return true to suppress the built-in
233processing. 384processing. This can happen multiple times, as long as the callback
385returns true, it will be called on every further click by the user and is
386supposed to enlarge the selection more and more, if possible.
234 387
235See the F<selection> example extension. 388See the F<selection> example extension.
236 389
237=item on_view_change $term, $offset 390=item on_view_change $term, $offset
238 391
305 458
306Called whenever the user presses a key combination that has a 459Called whenever the user presses a key combination that has a
307C<perl:string> action bound to it (see description of the B<keysym> 460C<perl:string> action bound to it (see description of the B<keysym>
308resource in the @@RXVT_NAME@@(1) manpage). 461resource in the @@RXVT_NAME@@(1) manpage).
309 462
463=item on_x_event $term, $event
464
465Called on every X event received on the vt window (and possibly other
466windows). Should only be used as a last resort. Most event structure
467members are not passed.
468
310=item on_focus_in $term 469=item on_focus_in $term
311 470
312Called whenever the window gets the keyboard focus, before rxvt-unicode 471Called whenever the window gets the keyboard focus, before rxvt-unicode
313does focus in processing. 472does focus in processing.
314 473
315=item on_focus_out $term 474=item on_focus_out $term
316 475
317Called wheneever the window loses keyboard focus, before rxvt-unicode does 476Called wheneever the window loses keyboard focus, before rxvt-unicode does
318focus out processing. 477focus out processing.
478
479=item on_configure_notify $term, $event
319 480
320=item on_key_press $term, $event, $keysym, $octets 481=item on_key_press $term, $event, $keysym, $octets
321 482
322=item on_key_release $term, $event, $keysym 483=item on_key_release $term, $event, $keysym
323 484
340 501
341C<on_key_press> additionally receives the string rxvt-unicode would 502C<on_key_press> additionally receives the string rxvt-unicode would
342output, if any, in locale-specific encoding. 503output, if any, in locale-specific encoding.
343 504
344subwindow. 505subwindow.
506
507=item on_client_message $term, $event
508
509=item on_wm_protocols $term, $event
510
511=item on_wm_delete_window $term, $event
512
513Called when various types of ClientMessage events are received (all with
514format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
345 515
346=back 516=back
347 517
348=cut 518=cut
349 519
355use Scalar::Util (); 525use Scalar::Util ();
356use List::Util (); 526use List::Util ();
357 527
358our $VERSION = 1; 528our $VERSION = 1;
359our $TERM; 529our $TERM;
530our @TERM_INIT;
531our @TERM_EXT;
360our @HOOKNAME; 532our @HOOKNAME;
361our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 533our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
362our %OPTION; 534our %OPTION;
363 535
364our $LIBDIR; 536our $LIBDIR;
386=item $urxvt::TERM 558=item $urxvt::TERM
387 559
388The current terminal. This variable stores the current C<urxvt::term> 560The current terminal. This variable stores the current C<urxvt::term>
389object, whenever a callback/hook is executing. 561object, whenever a callback/hook is executing.
390 562
563=item @urxvt::TERM_INIT
564
565All coderefs in this array will be called as methods of the next newly
566created C<urxvt::term> object (during the C<on_init> phase). The array
567gets cleared before the codereferences that were in it are being executed,
568so coderefs can push themselves onto it again if they so desire.
569
570This complements to the perl-eval commandline option, but gets executed
571first.
572
573=item @urxvt::TERM_EXT
574
575Works similar to C<@TERM_INIT>, but contains perl package/class names, which
576get registered as normal extensions after calling the hooks in C<@TERM_INIT>
577but before other extensions. Gets cleared just like C<@TERM_INIT>.
578
391=back 579=back
392 580
393=head2 Functions in the C<urxvt> Package 581=head2 Functions in the C<urxvt> Package
394 582
395=over 4 583=over 4
409Using this function has the advantage that its output ends up in the 597Using this function has the advantage that its output ends up in the
410correct place, e.g. on stderr of the connecting urxvtc client. 598correct place, e.g. on stderr of the connecting urxvtc client.
411 599
412Messages have a size limit of 1023 bytes currently. 600Messages have a size limit of 1023 bytes currently.
413 601
414=item $is_safe = urxvt::safe
415
416Returns true when it is safe to do potentially unsafe things, such as
417evaluating perl code specified by the user. This is true when urxvt was
418started setuid or setgid.
419
420=item $time = urxvt::NOW 602=item $time = urxvt::NOW
421 603
422Returns the "current time" (as per the event loop). 604Returns the "current time" (as per the event loop).
423 605
424=item urxvt::CurrentTime 606=item urxvt::CurrentTime
425 607
426=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 608=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
427Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 609Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
428Button4Mask, Button5Mask, AnyModifier 610Button4Mask, Button5Mask, AnyModifier
611
612=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
613ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
614PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
615Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
616KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
617ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
618FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
619
620=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
621EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
622GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
623UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
624ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
625CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
626SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
429 627
430Various constants for use in X calls and event processing. 628Various constants for use in X calls and event processing.
431 629
432=back 630=back
433 631
484=back 682=back
485 683
486=cut 684=cut
487 685
488BEGIN { 686BEGIN {
489 urxvt->bootstrap;
490
491 # overwrite perl's warn 687 # overwrite perl's warn
492 *CORE::GLOBAL::warn = sub { 688 *CORE::GLOBAL::warn = sub {
493 my $msg = join "", @_; 689 my $msg = join "", @_;
494 $msg .= "\n" 690 $msg .= "\n"
495 unless $msg =~ /\n$/; 691 unless $msg =~ /\n$/;
496 urxvt::warn ($msg); 692 urxvt::warn ($msg);
497 }; 693 };
498
499 delete $ENV{IFS};
500 delete $ENV{CDPATH};
501 delete $ENV{BASH_ENV};
502 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
503} 694}
504 695
505my @hook_count;
506my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 696my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
507 697
508sub verbose { 698sub verbose {
509 my ($level, $msg) = @_; 699 my ($level, $msg) = @_;
510 warn "$msg\n" if $level <= $verbosity; 700 warn "$msg\n" if $level <= $verbosity;
511} 701}
512 702
513my $extension_pkg = "extension0000";
514my %extension_pkg; 703my %extension_pkg;
515 704
516# load a single script into its own package, once only 705# load a single script into its own package, once only
517sub extension_package($) { 706sub extension_package($) {
518 my ($path) = @_; 707 my ($path) = @_;
519 708
520 $extension_pkg{$path} ||= do { 709 $extension_pkg{$path} ||= do {
521 my $pkg = "urxvt::" . ($extension_pkg++); 710 $path =~ /([^\/\\]+)$/;
711 my $pkg = $1;
712 $pkg =~ s/[^[:word:]]/_/g;
713 $pkg = "urxvt::ext::$pkg";
522 714
523 verbose 3, "loading extension '$path' into package '$pkg'"; 715 verbose 3, "loading extension '$path' into package '$pkg'";
524 716
525 open my $fh, "<:raw", $path 717 open my $fh, "<:raw", $path
526 or die "$path: $!"; 718 or die "$path: $!";
527 719
528 my $source = untaint 720 my $source =
529 "package $pkg; use strict; use utf8;\n" 721 "package $pkg; use strict; use utf8;\n"
530 . "use base urxvt::term::extension::;\n"
531 . "#line 1 \"$path\"\n{\n" 722 . "#line 1 \"$path\"\n{\n"
532 . (do { local $/; <$fh> }) 723 . (do { local $/; <$fh> })
533 . "\n};\n1"; 724 . "\n};\n1";
534 725
535 eval $source 726 eval $source
549 if ($htype == 0) { # INIT 740 if ($htype == 0) { # INIT
550 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 741 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
551 742
552 my %ext_arg; 743 my %ext_arg;
553 744
745 {
746 my @init = @TERM_INIT;
747 @TERM_INIT = ();
748 $_->($TERM) for @init;
749 my @pkg = @TERM_EXT;
750 @TERM_EXT = ();
751 $TERM->register_package ($_) for @pkg;
752 }
753
554 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 754 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
555 if ($_ eq "default") { 755 if ($_ eq "default") {
556 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 756 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
557 } elsif (/^-(.*)$/) { 757 } elsif (/^-(.*)$/) {
558 delete $ext_arg{$1}; 758 delete $ext_arg{$1};
559 } elsif (/^([^<]+)<(.*)>$/) { 759 } elsif (/^([^<]+)<(.*)>$/) {
584 if $verbosity >= 10; 784 if $verbosity >= 10;
585 785
586 keys %$cb; 786 keys %$cb;
587 787
588 while (my ($pkg, $cb) = each %$cb) { 788 while (my ($pkg, $cb) = each %$cb) {
589 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 789 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
590 and last; 790 $retval ||= $retval_;
591 791
592 if ($@) { 792 if ($@) {
593 $TERM->ungrab; # better to lose the grab than the session 793 $TERM->ungrab; # better to lose the grab than the session
594 warn $@; 794 warn $@;
595 } 795 }
596 } 796 }
797
798 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
799 if $verbosity >= 11;
597 } 800 }
598 801
599 if ($htype == 1) { # DESTROY 802 if ($htype == 1) { # DESTROY
600 if (my $hook = delete $TERM->{_hook}) {
601 for my $htype (0..$#$hook) {
602 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
603 or set_should_invoke $htype, 0;
604 }
605 }
606
607 # clear package objects 803 # clear package objects
608 %$_ = () for values %{ $TERM->{_pkg} }; 804 %$_ = () for values %{ $TERM->{_pkg} };
609 805
610 # clear package 806 # clear package
611 %$TERM = (); 807 %$TERM = ();
625 while (my ($name, $cb) = each %hook) { 821 while (my ($name, $cb) = each %hook) {
626 my $htype = $HOOKTYPE{uc $name}; 822 my $htype = $HOOKTYPE{uc $name};
627 defined $htype 823 defined $htype
628 or Carp::croak "unsupported hook type '$name'"; 824 or Carp::croak "unsupported hook type '$name'";
629 825
826 $self->set_should_invoke ($htype, +1)
630 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 827 unless exists $self->{term}{_hook}[$htype]{$pkg};
631 $hook_count[$htype]++
632 or urxvt::set_should_invoke $htype, 1;
633 }
634 828
635 $self->{term}{_hook}[$htype]{$pkg} = $cb; 829 $self->{term}{_hook}[$htype]{$pkg} = $cb;
636 } 830 }
637} 831}
638 832
643 for my $name (@hook) { 837 for my $name (@hook) {
644 my $htype = $HOOKTYPE{uc $name}; 838 my $htype = $HOOKTYPE{uc $name};
645 defined $htype 839 defined $htype
646 or Carp::croak "unsupported hook type '$name'"; 840 or Carp::croak "unsupported hook type '$name'";
647 841
842 $self->set_should_invoke ($htype, -1)
648 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 843 if delete $self->{term}{_hook}[$htype]{$pkg};
649 --$hook_count[$htype]
650 or urxvt::set_should_invoke $htype, 0;
651 }
652 } 844 }
653} 845}
654 846
655our $AUTOLOAD; 847our $AUTOLOAD;
656 848
762# find on_xxx subs in the package and register them 954# find on_xxx subs in the package and register them
763# as hooks 955# as hooks
764sub register_package { 956sub register_package {
765 my ($self, $pkg, $argv) = @_; 957 my ($self, $pkg, $argv) = @_;
766 958
959 no strict 'refs';
960
961 urxvt::verbose 6, "register package $pkg to $self";
962
963 @{"$pkg\::ISA"} = urxvt::term::extension::;
964
767 my $proxy = bless { 965 my $proxy = bless {
768 _pkg => $pkg, 966 _pkg => $pkg,
769 argv => $argv, 967 argv => $argv,
770 }, $pkg; 968 }, $pkg;
771 Scalar::Util::weaken ($proxy->{term} = $self); 969 Scalar::Util::weaken ($proxy->{term} = $self);
802 1000
803Destroy the terminal object (close the window, free resources 1001Destroy the terminal object (close the window, free resources
804etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1002etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
805watchers (timers, io watchers) are still active. 1003watchers (timers, io watchers) are still active.
806 1004
1005=item $term->exec_async ($cmd[, @args])
1006
1007Works like the combination of the C<fork>/C<exec> builtins, which executes
1008("starts") programs in the background. This function takes care of setting
1009the user environment before exec'ing the command (e.g. C<PATH>) and should
1010be preferred over explicit calls to C<exec> or C<system>.
1011
1012Returns the pid of the subprocess or C<undef> on error.
1013
1014=cut
1015
1016sub exec_async {
1017 my $self = shift;
1018
1019 my $pid = fork;
1020
1021 return $pid
1022 if !defined $pid or $pid;
1023
1024 %ENV = %{ $self->env };
1025
1026 exec @_;
1027 urxvt::_exit 255;
1028}
1029
807=item $isset = $term->option ($optval[, $set]) 1030=item $isset = $term->option ($optval[, $set])
808 1031
809Returns true if the option specified by C<$optval> is enabled, and 1032Returns true if the option specified by C<$optval> is enabled, and
810optionally change it. All option values are stored by name in the hash 1033optionally change it. All option values are stored by name in the hash
811C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. 1034C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
813Here is a a likely non-exhaustive list of option names, please see the 1036Here is a a likely non-exhaustive list of option names, please see the
814source file F</src/optinc.h> to see the actual list: 1037source file F</src/optinc.h> to see the actual list:
815 1038
816 borderLess console cursorBlink cursorUnderline hold iconic insecure 1039 borderLess console cursorBlink cursorUnderline hold iconic insecure
817 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1040 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
818 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1041 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
819 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1042 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
820 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1043 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
821 tripleclickwords utmpInhibit visualBell 1044 transparent tripleclickwords utmpInhibit visualBell
822 1045
823=item $value = $term->resource ($name[, $newval]) 1046=item $value = $term->resource ($name[, $newval])
824 1047
825Returns the current resource value associated with a given name and 1048Returns the current resource value associated with a given name and
826optionally sets a new value. Setting values is most useful in the C<init> 1049optionally sets a new value. Setting values is most useful in the C<init>
843 1066
844 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1067 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
845 borderLess color cursorBlink cursorUnderline cutchars delete_key 1068 borderLess color cursorBlink cursorUnderline cutchars delete_key
846 display_name embed ext_bwidth fade font geometry hold iconName 1069 display_name embed ext_bwidth fade font geometry hold iconName
847 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1070 imFont imLocale inputMethod insecure int_bwidth intensityStyles
848 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1071 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
849 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1072 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
850 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1073 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
851 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1074 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
852 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1075 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
853 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1076 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
854 shade term_name title transparent transparent_all tripleclickwords 1077 secondaryScreen secondaryScroll selectstyle shade term_name title
855 utmpInhibit visualBell 1078 transient_for transparent transparent_all tripleclickwords utmpInhibit
1079 visualBell
856 1080
857=cut 1081=cut
858 1082
859sub resource($$;$) { 1083sub resource($$;$) {
860 my ($self, $name) = (shift, shift); 1084 my ($self, $name) = (shift, shift);
861 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 1085 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
862 &urxvt::term::_resource 1086 &urxvt::term::_resource
863} 1087}
864 1088
1089=item $value = $term->x_resource ($pattern)
1090
1091Returns the X-Resource for the given pattern, excluding the program or
1092class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1093same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1094resource with that pattern exists.
1095
1096This method should only be called during the C<on_start> hook, as there is
1097only one resource database per display, and later invocations might return
1098the wrong resources.
1099
865=item $success = $term->parse_keysym ($keysym_spec, $command_string) 1100=item $success = $term->parse_keysym ($keysym_spec, $command_string)
866 1101
867Adds a keymap translation exactly as specified via a resource. See the 1102Adds a keymap translation exactly as specified via a resource. See the
868C<keysym> resource in the @@RXVT_NAME@@(1) manpage. 1103C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
869 1104
884=item ($row, $col) = $term->selection_end ([$row, $col]) 1119=item ($row, $col) = $term->selection_end ([$row, $col])
885 1120
886Return the current values of the selection mark, begin or end positions, 1121Return the current values of the selection mark, begin or end positions,
887and optionally set them to new values. 1122and optionally set them to new values.
888 1123
1124=item $term->selection_make ($eventtime[, $rectangular])
1125
1126Tries to make a selection as set by C<selection_beg> and
1127C<selection_end>. If C<$rectangular> is true (default: false), a
1128rectangular selection will be made. This is the prefered function to make
1129a selection.
1130
889=item $success = $term->selection_grab ($eventtime) 1131=item $success = $term->selection_grab ($eventtime)
890 1132
891Try to request the primary selection from the server (for example, as set 1133Try to request the primary selection text from the server (for example, as
892by the next method). 1134set by the next method). No visual feedback will be given. This function
1135is mostly useful from within C<on_sel_grab> hooks.
893 1136
894=item $oldtext = $term->selection ([$newtext]) 1137=item $oldtext = $term->selection ([$newtext])
895 1138
896Return the current selection text and optionally replace it by C<$newtext>. 1139Return the current selection text and optionally replace it by C<$newtext>.
897 1140
990Convert the given locale-encoded octets into a perl string. 1233Convert the given locale-encoded octets into a perl string.
991 1234
992=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle]) 1235=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
993 1236
994XORs the rendition values in the given span with the provided value 1237XORs the rendition values in the given span with the provided value
995(default: C<RS_RVid>). Useful in refresh hooks to provide effects similar 1238(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
996to the selection. 1239refresh hooks to provide effects similar to the selection.
997 1240
998=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]]) 1241=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
999 1242
1000Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing 1243Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1001whitespace will additionally be xored with the C<$rstyle2>, which defaults 1244whitespace will additionally be xored with the C<$rstyle2>, which defaults
1002to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines 1245to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1003it instead. 1246it instead. Both styles I<MUST NOT> contain font styles.
1004 1247
1005=item $term->scr_bell 1248=item $term->scr_bell
1006 1249
1007Ring the bell! 1250Ring the bell!
1008 1251
1042 1285
1043=item $windowid = $term->vt 1286=item $windowid = $term->vt
1044 1287
1045Return the window id of the terminal window. 1288Return the window id of the terminal window.
1046 1289
1290=item $term->vt_emask_add ($x_event_mask)
1291
1292Adds the specified events to the vt event mask. Useful e.g. when you want
1293to receive pointer events all the times:
1294
1295 $term->vt_emask_add (urxvt::PointerMotionMask);
1296
1047=item $window_width = $term->width 1297=item $window_width = $term->width
1048 1298
1049=item $window_height = $term->height 1299=item $window_height = $term->height
1050 1300
1051=item $font_width = $term->fwidth 1301=item $font_width = $term->fwidth
1064 1314
1065=item $max_scrollback = $term->saveLines 1315=item $max_scrollback = $term->saveLines
1066 1316
1067=item $nrow_plus_saveLines = $term->total_rows 1317=item $nrow_plus_saveLines = $term->total_rows
1068 1318
1069=item $lines_in_scrollback = $term->nsaved 1319=item $topmost_scrollback_row = $term->top_row
1070 1320
1071Return various integers describing terminal characteristics. 1321Return various integers describing terminal characteristics.
1072 1322
1073=item $x_display = $term->display_id 1323=item $x_display = $term->display_id
1074 1324
1102Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1352Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1103AltGr), the meta key (often Alt) and the num lock key, if applicable. 1353AltGr), the meta key (often Alt) and the num lock key, if applicable.
1104 1354
1105=item $view_start = $term->view_start ([$newvalue]) 1355=item $view_start = $term->view_start ([$newvalue])
1106 1356
1107Returns the negative row number of the topmost line. Minimum value is 1357Returns the row number of the topmost displayed line. Maximum value is
1108C<0>, which displays the normal terminal contents. Larger values scroll 1358C<0>, which displays the normal terminal contents. Lower values scroll
1109this many lines into the scrollback buffer. 1359this many lines into the scrollback buffer.
1110 1360
1111=item $term->want_refresh 1361=item $term->want_refresh
1112 1362
1113Requests a screen refresh. At the next opportunity, rxvt-unicode will 1363Requests a screen refresh. At the next opportunity, rxvt-unicode will
1192Return the row number of the first/last row of the line, respectively. 1442Return the row number of the first/last row of the line, respectively.
1193 1443
1194=item $offset = $line->offset_of ($row, $col) 1444=item $offset = $line->offset_of ($row, $col)
1195 1445
1196Returns the character offset of the given row|col pair within the logical 1446Returns the character offset of the given row|col pair within the logical
1197line. 1447line. Works for rows outside the line, too, and returns corresponding
1448offsets outside the string.
1198 1449
1199=item ($row, $col) = $line->coord_of ($offset) 1450=item ($row, $col) = $line->coord_of ($offset)
1200 1451
1201Translates a string offset into terminal coordinates again. 1452Translates a string offset into terminal coordinates again.
1202 1453
1425 my $env = $self->{term}->env; 1676 my $env = $self->{term}->env;
1426 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. 1677 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1427 delete $env->{LC_ALL}; 1678 delete $env->{LC_ALL};
1428 $env->{LC_CTYPE} = $self->{term}->locale; 1679 $env->{LC_CTYPE} = $self->{term}->locale;
1429 1680
1430 urxvt::term->new ($env, $self->{term}->resource ("name"), 1681 urxvt::term->new ($env, "popup",
1431 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1682 "--perl-lib" => "", "--perl-ext-common" => "",
1683 "-pty-fd" => -1, "-sl" => 0,
1684 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1432 "--transient-for" => $self->{term}->parent, 1685 "--transient-for" => $self->{term}->parent,
1433 "-display" => $self->{term}->display_id, 1686 "-display" => $self->{term}->display_id,
1434 "-pe" => "urxvt-popup") 1687 "-pe" => "urxvt-popup")
1435 or die "unable to create popup window\n"; 1688 or die "unable to create popup window\n";
1436} 1689}
1441 delete $self->{term}{_destroy}{$self}; 1694 delete $self->{term}{_destroy}{$self};
1442 $self->{term}->ungrab; 1695 $self->{term}->ungrab;
1443} 1696}
1444 1697
1445=back 1698=back
1699
1700=cut
1701
1702package urxvt::watcher;
1703
1704@urxvt::timer::ISA = __PACKAGE__;
1705@urxvt::iow::ISA = __PACKAGE__;
1706@urxvt::pw::ISA = __PACKAGE__;
1707@urxvt::iw::ISA = __PACKAGE__;
1446 1708
1447=head2 The C<urxvt::timer> Class 1709=head2 The C<urxvt::timer> Class
1448 1710
1449This class implements timer watchers/events. Time is represented as a 1711This class implements timer watchers/events. Time is represented as a
1450fractional number of seconds since the epoch. Example: 1712fractional number of seconds since the epoch. Example:
1488Start the timer. 1750Start the timer.
1489 1751
1490=item $timer = $timer->start ($tstamp) 1752=item $timer = $timer->start ($tstamp)
1491 1753
1492Set the event trigger time to C<$tstamp> and start the timer. 1754Set the event trigger time to C<$tstamp> and start the timer.
1755
1756=item $timer = $timer->after ($delay)
1757
1758Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1493 1759
1494=item $timer = $timer->stop 1760=item $timer = $timer->stop
1495 1761
1496Stop the timer. 1762Stop the timer.
1497 1763
1544 1810
1545Stop watching for events on the given filehandle. 1811Stop watching for events on the given filehandle.
1546 1812
1547=back 1813=back
1548 1814
1815=head2 The C<urxvt::iw> Class
1816
1817This class implements idle watchers, that get called automatically when
1818the process is idle. They should return as fast as possible, after doing
1819some useful work.
1820
1821=over 4
1822
1823=item $iw = new urxvt::iw
1824
1825Create a new idle watcher object in stopped state.
1826
1827=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1828
1829Set the callback to be called when the watcher triggers.
1830
1831=item $timer = $timer->start
1832
1833Start the watcher.
1834
1835=item $timer = $timer->stop
1836
1837Stop the watcher.
1838
1839=back
1840
1841=head2 The C<urxvt::pw> Class
1842
1843This class implements process watchers. They create an event whenever a
1844process exits, after which they stop automatically.
1845
1846 my $pid = fork;
1847 ...
1848 $term->{pw} = urxvt::pw
1849 ->new
1850 ->start ($pid)
1851 ->cb (sub {
1852 my ($pw, $exit_status) = @_;
1853 ...
1854 });
1855
1856=over 4
1857
1858=item $pw = new urxvt::pw
1859
1860Create a new process watcher in stopped state.
1861
1862=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1863
1864Set the callback to be called when the timer triggers.
1865
1866=item $pw = $timer->start ($pid)
1867
1868Tells the wqtcher to start watching for process C<$pid>.
1869
1870=item $pw = $pw->stop
1871
1872Stop the watcher.
1873
1874=back
1875
1549=head1 ENVIRONMENT 1876=head1 ENVIRONMENT
1550 1877
1551=head2 URXVT_PERL_VERBOSITY 1878=head2 URXVT_PERL_VERBOSITY
1552 1879
1553This variable controls the verbosity level of the perl extension. Higher 1880This variable controls the verbosity level of the perl extension. Higher
1557 1884
1558=item == 0 - fatal messages 1885=item == 0 - fatal messages
1559 1886
1560=item >= 3 - script loading and management 1887=item >= 3 - script loading and management
1561 1888
1562=item >=10 - all events received 1889=item >=10 - all called hooks
1890
1891=item >=11 - hook reutrn values
1563 1892
1564=back 1893=back
1565 1894
1566=head1 AUTHOR 1895=head1 AUTHOR
1567 1896

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