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Revision 1.78 by root, Wed Jan 11 01:01:52 2006 UTC vs.
Revision 1.115 by root, Fri Jan 20 15:57:21 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
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. 96evalution, web-browser starting etc.), depending on content.
71 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 @{ $self->{term}{selection_popup_hook} }, sub {
113 /a/ ? ("a to be" => sub { s/a/b/g }
114 : ()
115 };
116
72=item searchable-scrollback<hotkey> (enabled by default) 117=item searchable-scrollback<hotkey> (enabled by default)
73 118
74Adds regex search functionality to the scrollback buffer, triggered 119Adds regex search functionality to the scrollback buffer, triggered
75by a hotkey (default: C<M-s>). When in search mode, normal terminal 120by a hotkey (default: C<M-s>). While in search mode, normal terminal
76input/output is suspended. 121input/output is suspended and a regex is displayed at the bottom of the
122screen.
77 123
78C</> starts an incremental regex search, C<n> searches further, C<p> or 124Inputting characters appends them to the regex and continues incremental
79C<N> jump to the previous match, C<G> jumps to the bottom and clears the 125search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
80history, C<enter> leaves search mode at the current position and C<escape> 126search upwards/downwards in the scrollback buffer, C<End> jumps to the
81returns to the original position. 127bottom. C<Escape> leaves search mode and returns to the point where search
128was started, while C<Enter> or C<Return> stay at the current position and
129additionally stores the first match in the current line into the primary
130selection.
82 131
83=item digital-clock 132=item selection-autotransform
84 133
85Displays a digital clock using the built-in overlay. 134This selection allows you to do automatic transforms on a selection
135whenever a selection is made.
136
137It works by specifying perl snippets (most useful is a single C<s///>
138operator) that modify C<$_> 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 Shift-Left and
175Shift-Right will switch to the tab left or right of the current one.
86 176
87=item mark-urls 177=item mark-urls
88 178
89Uses per-line display filtering (C<on_line_update>) to underline urls. 179Uses per-line display filtering (C<on_line_update>) to underline urls and
180make them clickable. When middle-clicked, the program specified in the
181resource C<urlLauncher> (default C<x-www-browser>) will be started with
182the URL as first argument.
183
184=item automove-background
185
186This is basically a one-line extension that dynamically changes the background pixmap offset
187to the window position, in effect creating the same effect as pseudo transparency with
188a custom pixmap. No scaling is supported in this mode. Exmaple:
189
190 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
90 191
91=item block-graphics-to-ascii 192=item block-graphics-to-ascii
92 193
93A not very useful example of filtering all text output to the terminal, 194A not very useful example of filtering all text output to the terminal,
94by replacing all line-drawing characters (U+2500 .. U+259F) by a 195by replacing all line-drawing characters (U+2500 .. U+259F) by a
95similar-looking ascii character. 196similar-looking ascii character.
96 197
198=item digital-clock
199
200Displays a digital clock using the built-in overlay.
201
97=item example-refresh-hooks 202=item example-refresh-hooks
98 203
99Displays a very simple digital clock in the upper right corner of the 204Displays a very simple digital clock in the upper right corner of the
100window. Illustrates overwriting the refresh callbacks to create your own 205window. Illustrates overwriting the refresh callbacks to create your own
101overlays or changes. 206overlays or changes.
207
208=item selection-pastebin
209
210This is a little rarely useful extension that Uploads the selection as
211textfile to a remote site (or does other things). (The implementation is
212not currently secure for use in a multiuser environment as it writes to
213F</tmp> directly.).
214
215It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
216i.e.
217
218 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
219
220Pressing this combination runs a command with C<%> replaced by the name of
221the textfile. This command can be set via a resource:
222
223 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
224
225And the default is likely not useful to anybody but the few people around
226here :)
227
228The name of the textfile is the hex encoded md5 sum of the selection, so
229the same content should lead to the same filename.
230
231After a successful upload the selection will be replaced by the text given
232in the C<selection-pastebin-url> resource (again, the % is the placeholder
233for the filename):
234
235 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
102 236
103=back 237=back
104 238
105=head1 API DOCUMENTATION 239=head1 API DOCUMENTATION
106 240
179called whenever the relevant event happens. 313called whenever the relevant event happens.
180 314
181The first argument passed to them is an extension oject as described in 315The first argument passed to them is an extension oject as described in
182the in the C<Extension Objects> section. 316the in the C<Extension Objects> section.
183 317
184B<All> of these hooks must return a boolean value. If it is true, then the 318B<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 319hooks 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. 320relevant action might not be carried out by the C++ code.
187 321
188I<< When in doubt, return a false value (preferably C<()>). >> 322I<< When in doubt, return a false value (preferably C<()>). >>
189 323
190=over 4 324=over 4
191 325
192=item on_init $term 326=item on_init $term
193 327
194Called after a new terminal object has been initialized, but before 328Called after a new terminal object has been initialized, but before
195windows are created or the command gets run. Most methods are unsafe to 329windows are created or the command gets run. Most methods are unsafe to
196call or deliver senseless data, as terminal size and other characteristics 330call or deliver senseless data, as terminal size and other characteristics
197have not yet been determined. You can safely query and change resources, 331have not yet been determined. You can safely query and change resources
198though. 332and options, though. For many purposes the C<on_start> hook is a better
333place.
334
335=item on_start $term
336
337Called at the very end of initialisation of a new terminal, just before
338trying to map (display) the toplevel and returning to the mainloop.
339
340=item on_destroy $term
341
342Called whenever something tries to destroy terminal, before doing anything
343yet. If this hook returns true, then destruction is skipped, but this is
344rarely a good idea.
199 345
200=item on_reset $term 346=item on_reset $term
201 347
202Called after the screen is "reset" for any reason, such as resizing or 348Called 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 349control sequences. Here is where you can react on changes to size-related
204variables. 350variables.
205 351
206=item on_start $term 352=item on_child_start $term, $pid
207 353
208Called at the very end of initialisation of a new terminal, just before 354Called just after the child process has been C<fork>ed.
209returning to the mainloop. 355
356=item on_child_exit $term, $status
357
358Called just after the child process has exited. C<$status> is the status
359from C<waitpid>.
210 360
211=item on_sel_make $term, $eventtime 361=item on_sel_make $term, $eventtime
212 362
213Called whenever a selection has been made by the user, but before the 363Called 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 364selection text is copied, so changes to the beginning, end or type of the
228=item on_sel_extend $term 378=item on_sel_extend $term
229 379
230Called whenever the user tries to extend the selection (e.g. with a double 380Called whenever the user tries to extend the selection (e.g. with a double
231click) and is either supposed to return false (normal operation), or 381click) and is either supposed to return false (normal operation), or
232should extend the selection itelf and return true to suppress the built-in 382should extend the selection itelf and return true to suppress the built-in
233processing. 383processing. This can happen multiple times, as long as the callback
384returns true, it will be called on every further click by the user and is
385supposed to enlarge the selection more and more, if possible.
234 386
235See the F<selection> example extension. 387See the F<selection> example extension.
236 388
237=item on_view_change $term, $offset 389=item on_view_change $term, $offset
238 390
305 457
306Called whenever the user presses a key combination that has a 458Called whenever the user presses a key combination that has a
307C<perl:string> action bound to it (see description of the B<keysym> 459C<perl:string> action bound to it (see description of the B<keysym>
308resource in the @@RXVT_NAME@@(1) manpage). 460resource in the @@RXVT_NAME@@(1) manpage).
309 461
462=item on_x_event $term, $event
463
464Called on every X event received on the vt window (and possibly other
465windows). Should only be used as a last resort. Most event structure
466members are not passed.
467
310=item on_focus_in $term 468=item on_focus_in $term
311 469
312Called whenever the window gets the keyboard focus, before rxvt-unicode 470Called whenever the window gets the keyboard focus, before rxvt-unicode
313does focus in processing. 471does focus in processing.
314 472
315=item on_focus_out $term 473=item on_focus_out $term
316 474
317Called wheneever the window loses keyboard focus, before rxvt-unicode does 475Called wheneever the window loses keyboard focus, before rxvt-unicode does
318focus out processing. 476focus out processing.
477
478=item on_configure_notify $term, $event
319 479
320=item on_key_press $term, $event, $keysym, $octets 480=item on_key_press $term, $event, $keysym, $octets
321 481
322=item on_key_release $term, $event, $keysym 482=item on_key_release $term, $event, $keysym
323 483
340 500
341C<on_key_press> additionally receives the string rxvt-unicode would 501C<on_key_press> additionally receives the string rxvt-unicode would
342output, if any, in locale-specific encoding. 502output, if any, in locale-specific encoding.
343 503
344subwindow. 504subwindow.
505
506=item on_client_message $term, $event
507
508=item on_wm_protocols $term, $event
509
510=item on_wm_delete_window $term, $event
511
512Called when various types of ClientMessage events are received (all with
513format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
345 514
346=back 515=back
347 516
348=cut 517=cut
349 518
355use Scalar::Util (); 524use Scalar::Util ();
356use List::Util (); 525use List::Util ();
357 526
358our $VERSION = 1; 527our $VERSION = 1;
359our $TERM; 528our $TERM;
529our @TERM_INIT;
530our @TERM_EXT;
360our @HOOKNAME; 531our @HOOKNAME;
361our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 532our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
362our %OPTION; 533our %OPTION;
363 534
364our $LIBDIR; 535our $LIBDIR;
386=item $urxvt::TERM 557=item $urxvt::TERM
387 558
388The current terminal. This variable stores the current C<urxvt::term> 559The current terminal. This variable stores the current C<urxvt::term>
389object, whenever a callback/hook is executing. 560object, whenever a callback/hook is executing.
390 561
562=item @urxvt::TERM_INIT
563
564All coderefs in this array will be called as methods of the next newly
565created C<urxvt::term> object (during the C<on_init> phase). The array
566gets cleared before the codereferences that were in it are being executed,
567so coderefs can push themselves onto it again if they so desire.
568
569This complements to the perl-eval commandline option, but gets executed
570first.
571
572=item @urxvt::TERM_EXT
573
574Works similar to C<@TERM_INIT>, but contains perl package/class names, which
575get registered as normal extensions after calling the hooks in C<@TERM_INIT>
576but before other extensions. Gets cleared just like C<@TERM_INIT>.
577
391=back 578=back
392 579
393=head2 Functions in the C<urxvt> Package 580=head2 Functions in the C<urxvt> Package
394 581
395=over 4 582=over 4
409Using this function has the advantage that its output ends up in the 596Using this function has the advantage that its output ends up in the
410correct place, e.g. on stderr of the connecting urxvtc client. 597correct place, e.g. on stderr of the connecting urxvtc client.
411 598
412Messages have a size limit of 1023 bytes currently. 599Messages have a size limit of 1023 bytes currently.
413 600
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 601=item $time = urxvt::NOW
421 602
422Returns the "current time" (as per the event loop). 603Returns the "current time" (as per the event loop).
423 604
424=item urxvt::CurrentTime 605=item urxvt::CurrentTime
425 606
426=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 607=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
427Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 608Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
428Button4Mask, Button5Mask, AnyModifier 609Button4Mask, Button5Mask, AnyModifier
610
611=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
612ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
613PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
614Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
615KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
616ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
617FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
618
619=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
620EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
621GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
622UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
623ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
624CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
625SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
429 626
430Various constants for use in X calls and event processing. 627Various constants for use in X calls and event processing.
431 628
432=back 629=back
433 630
484=back 681=back
485 682
486=cut 683=cut
487 684
488BEGIN { 685BEGIN {
489 urxvt->bootstrap;
490
491 # overwrite perl's warn 686 # overwrite perl's warn
492 *CORE::GLOBAL::warn = sub { 687 *CORE::GLOBAL::warn = sub {
493 my $msg = join "", @_; 688 my $msg = join "", @_;
494 $msg .= "\n" 689 $msg .= "\n"
495 unless $msg =~ /\n$/; 690 unless $msg =~ /\n$/;
496 urxvt::warn ($msg); 691 urxvt::warn ($msg);
497 }; 692 };
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} 693}
504 694
505my @hook_count;
506my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 695my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
507 696
508sub verbose { 697sub verbose {
509 my ($level, $msg) = @_; 698 my ($level, $msg) = @_;
510 warn "$msg\n" if $level <= $verbosity; 699 warn "$msg\n" if $level <= $verbosity;
511} 700}
512 701
513my $extension_pkg = "extension0000";
514my %extension_pkg; 702my %extension_pkg;
515 703
516# load a single script into its own package, once only 704# load a single script into its own package, once only
517sub extension_package($) { 705sub extension_package($) {
518 my ($path) = @_; 706 my ($path) = @_;
519 707
520 $extension_pkg{$path} ||= do { 708 $extension_pkg{$path} ||= do {
521 my $pkg = "urxvt::" . ($extension_pkg++); 709 $path =~ /([^\/\\]+)$/;
710 my $pkg = $1;
711 $pkg =~ s/[^[:word:]]/_/g;
712 $pkg = "urxvt::ext::$pkg";
522 713
523 verbose 3, "loading extension '$path' into package '$pkg'"; 714 verbose 3, "loading extension '$path' into package '$pkg'";
524 715
525 open my $fh, "<:raw", $path 716 open my $fh, "<:raw", $path
526 or die "$path: $!"; 717 or die "$path: $!";
527 718
528 my $source = untaint 719 my $source =
529 "package $pkg; use strict; use utf8;\n" 720 "package $pkg; use strict; use utf8;\n"
530 . "use base urxvt::term::extension::;\n"
531 . "#line 1 \"$path\"\n{\n" 721 . "#line 1 \"$path\"\n{\n"
532 . (do { local $/; <$fh> }) 722 . (do { local $/; <$fh> })
533 . "\n};\n1"; 723 . "\n};\n1";
534 724
535 eval $source 725 eval $source
549 if ($htype == 0) { # INIT 739 if ($htype == 0) { # INIT
550 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 740 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
551 741
552 my %ext_arg; 742 my %ext_arg;
553 743
744 {
745 my @init = @TERM_INIT;
746 @TERM_INIT = ();
747 $_->($TERM) for @init;
748 my @pkg = @TERM_EXT;
749 @TERM_EXT = ();
750 $TERM->register_package ($_) for @pkg;
751 }
752
554 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 753 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
555 if ($_ eq "default") { 754 if ($_ eq "default") {
556 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 755 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
557 } elsif (/^-(.*)$/) { 756 } elsif (/^-(.*)$/) {
558 delete $ext_arg{$1}; 757 delete $ext_arg{$1};
559 } elsif (/^([^<]+)<(.*)>$/) { 758 } elsif (/^([^<]+)<(.*)>$/) {
584 if $verbosity >= 10; 783 if $verbosity >= 10;
585 784
586 keys %$cb; 785 keys %$cb;
587 786
588 while (my ($pkg, $cb) = each %$cb) { 787 while (my ($pkg, $cb) = each %$cb) {
589 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 788 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
590 and last; 789 $retval ||= $retval_;
591 790
592 if ($@) { 791 if ($@) {
593 $TERM->ungrab; # better to lose the grab than the session 792 $TERM->ungrab; # better to lose the grab than the session
594 warn $@; 793 warn $@;
595 } 794 }
596 } 795 }
796
797 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
798 if $verbosity >= 11;
597 } 799 }
598 800
599 if ($htype == 1) { # DESTROY 801 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 $htype, 0;
604 }
605 }
606
607 # clear package objects 802 # clear package objects
608 %$_ = () for values %{ $TERM->{_pkg} }; 803 %$_ = () for values %{ $TERM->{_pkg} };
609 804
610 # clear package 805 # clear package
611 %$TERM = (); 806 %$TERM = ();
625 while (my ($name, $cb) = each %hook) { 820 while (my ($name, $cb) = each %hook) {
626 my $htype = $HOOKTYPE{uc $name}; 821 my $htype = $HOOKTYPE{uc $name};
627 defined $htype 822 defined $htype
628 or Carp::croak "unsupported hook type '$name'"; 823 or Carp::croak "unsupported hook type '$name'";
629 824
825 $self->set_should_invoke ($htype, +1)
630 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 826 unless exists $self->{term}{_hook}[$htype]{$pkg};
631 $hook_count[$htype]++
632 or urxvt::set_should_invoke $htype, 1;
633 }
634 827
635 $self->{term}{_hook}[$htype]{$pkg} = $cb; 828 $self->{term}{_hook}[$htype]{$pkg} = $cb;
636 } 829 }
637} 830}
638 831
643 for my $name (@hook) { 836 for my $name (@hook) {
644 my $htype = $HOOKTYPE{uc $name}; 837 my $htype = $HOOKTYPE{uc $name};
645 defined $htype 838 defined $htype
646 or Carp::croak "unsupported hook type '$name'"; 839 or Carp::croak "unsupported hook type '$name'";
647 840
841 $self->set_should_invoke ($htype, -1)
648 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 842 if delete $self->{term}{_hook}[$htype]{$pkg};
649 --$hook_count[$htype]
650 or urxvt::set_should_invoke $htype, 0;
651 }
652 } 843 }
653} 844}
654 845
655our $AUTOLOAD; 846our $AUTOLOAD;
656 847
762# find on_xxx subs in the package and register them 953# find on_xxx subs in the package and register them
763# as hooks 954# as hooks
764sub register_package { 955sub register_package {
765 my ($self, $pkg, $argv) = @_; 956 my ($self, $pkg, $argv) = @_;
766 957
958 no strict 'refs';
959
960 urxvt::verbose 6, "register package $pkg to $self";
961
962 @{"$pkg\::ISA"} = urxvt::term::extension::;
963
767 my $proxy = bless { 964 my $proxy = bless {
768 _pkg => $pkg, 965 _pkg => $pkg,
769 argv => $argv, 966 argv => $argv,
770 }, $pkg; 967 }, $pkg;
771 Scalar::Util::weaken ($proxy->{term} = $self); 968 Scalar::Util::weaken ($proxy->{term} = $self);
802 999
803Destroy the terminal object (close the window, free resources 1000Destroy the terminal object (close the window, free resources
804etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1001etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
805watchers (timers, io watchers) are still active. 1002watchers (timers, io watchers) are still active.
806 1003
1004=item $term->exec_async ($cmd[, @args])
1005
1006Works like the combination of the C<fork>/C<exec> builtins, which executes
1007("starts") programs in the background. This function takes care of setting
1008the user environment before exec'ing the command (e.g. C<PATH>) and should
1009be preferred over explicit calls to C<exec> or C<system>.
1010
1011Returns the pid of the subprocess or C<undef> on error.
1012
1013=cut
1014
1015sub exec_async {
1016 my $self = shift;
1017
1018 my $pid = fork;
1019
1020 return $pid
1021 if !defined $pid or $pid;
1022
1023 %ENV = %{ $self->env };
1024
1025 exec @_;
1026 urxvt::_exit 255;
1027}
1028
807=item $isset = $term->option ($optval[, $set]) 1029=item $isset = $term->option ($optval[, $set])
808 1030
809Returns true if the option specified by C<$optval> is enabled, and 1031Returns true if the option specified by C<$optval> is enabled, and
810optionally change it. All option values are stored by name in the hash 1032optionally 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. 1033C<%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 1035Here is a a likely non-exhaustive list of option names, please see the
814source file F</src/optinc.h> to see the actual list: 1036source file F</src/optinc.h> to see the actual list:
815 1037
816 borderLess console cursorBlink cursorUnderline hold iconic insecure 1038 borderLess console cursorBlink cursorUnderline hold iconic insecure
817 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1039 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
818 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1040 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
819 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1041 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
820 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1042 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
821 tripleclickwords utmpInhibit visualBell 1043 transparent tripleclickwords utmpInhibit visualBell
822 1044
823=item $value = $term->resource ($name[, $newval]) 1045=item $value = $term->resource ($name[, $newval])
824 1046
825Returns the current resource value associated with a given name and 1047Returns the current resource value associated with a given name and
826optionally sets a new value. Setting values is most useful in the C<init> 1048optionally sets a new value. Setting values is most useful in the C<init>
843 1065
844 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1066 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
845 borderLess color cursorBlink cursorUnderline cutchars delete_key 1067 borderLess color cursorBlink cursorUnderline cutchars delete_key
846 display_name embed ext_bwidth fade font geometry hold iconName 1068 display_name embed ext_bwidth fade font geometry hold iconName
847 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1069 imFont imLocale inputMethod insecure int_bwidth intensityStyles
848 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1070 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
849 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1071 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
850 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1072 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
851 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1073 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
852 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1074 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
853 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1075 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
854 shade term_name title transparent transparent_all tripleclickwords 1076 secondaryScreen secondaryScroll selectstyle shade term_name title
855 utmpInhibit visualBell 1077 transient_for transparent transparent_all tripleclickwords utmpInhibit
1078 visualBell
856 1079
857=cut 1080=cut
858 1081
859sub resource($$;$) { 1082sub resource($$;$) {
860 my ($self, $name) = (shift, shift); 1083 my ($self, $name) = (shift, shift);
861 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 1084 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
862 &urxvt::term::_resource 1085 &urxvt::term::_resource
863} 1086}
864 1087
1088=item $value = $term->x_resource ($pattern)
1089
1090Returns the X-Resource for the given pattern, excluding the program or
1091class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1092same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1093resource with that pattern exists.
1094
1095This method should only be called during the C<on_start> hook, as there is
1096only one resource database per display, and later invocations might return
1097the wrong resources.
1098
865=item $success = $term->parse_keysym ($keysym_spec, $command_string) 1099=item $success = $term->parse_keysym ($keysym_spec, $command_string)
866 1100
867Adds a keymap translation exactly as specified via a resource. See the 1101Adds a keymap translation exactly as specified via a resource. See the
868C<keysym> resource in the @@RXVT_NAME@@(1) manpage. 1102C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
869 1103
884=item ($row, $col) = $term->selection_end ([$row, $col]) 1118=item ($row, $col) = $term->selection_end ([$row, $col])
885 1119
886Return the current values of the selection mark, begin or end positions, 1120Return the current values of the selection mark, begin or end positions,
887and optionally set them to new values. 1121and optionally set them to new values.
888 1122
1123=item $term->selection_make ($eventtime[, $rectangular])
1124
1125Tries to make a selection as set by C<selection_beg> and
1126C<selection_end>. If C<$rectangular> is true (default: false), a
1127rectangular selection will be made. This is the prefered function to make
1128a selection.
1129
889=item $success = $term->selection_grab ($eventtime) 1130=item $success = $term->selection_grab ($eventtime)
890 1131
891Try to request the primary selection from the server (for example, as set 1132Try to request the primary selection text from the server (for example, as
892by the next method). 1133set by the next method). No visual feedback will be given. This function
1134is mostly useful from within C<on_sel_grab> hooks.
893 1135
894=item $oldtext = $term->selection ([$newtext]) 1136=item $oldtext = $term->selection ([$newtext])
895 1137
896Return the current selection text and optionally replace it by C<$newtext>. 1138Return the current selection text and optionally replace it by C<$newtext>.
897 1139
990Convert the given locale-encoded octets into a perl string. 1232Convert the given locale-encoded octets into a perl string.
991 1233
992=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle]) 1234=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
993 1235
994XORs the rendition values in the given span with the provided value 1236XORs the rendition values in the given span with the provided value
995(default: C<RS_RVid>). Useful in refresh hooks to provide effects similar 1237(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
996to the selection. 1238refresh hooks to provide effects similar to the selection.
997 1239
998=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]]) 1240=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
999 1241
1000Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing 1242Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1001whitespace will additionally be xored with the C<$rstyle2>, which defaults 1243whitespace will additionally be xored with the C<$rstyle2>, which defaults
1002to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines 1244to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1003it instead. 1245it instead. Both styles I<MUST NOT> contain font styles.
1004 1246
1005=item $term->scr_bell 1247=item $term->scr_bell
1006 1248
1007Ring the bell! 1249Ring the bell!
1008 1250
1042 1284
1043=item $windowid = $term->vt 1285=item $windowid = $term->vt
1044 1286
1045Return the window id of the terminal window. 1287Return the window id of the terminal window.
1046 1288
1289=item $term->vt_emask_add ($x_event_mask)
1290
1291Adds the specified events to the vt event mask. Useful e.g. when you want
1292to receive pointer events all the times:
1293
1294 $term->vt_emask_add (urxvt::PointerMotionMask);
1295
1047=item $window_width = $term->width 1296=item $window_width = $term->width
1048 1297
1049=item $window_height = $term->height 1298=item $window_height = $term->height
1050 1299
1051=item $font_width = $term->fwidth 1300=item $font_width = $term->fwidth
1064 1313
1065=item $max_scrollback = $term->saveLines 1314=item $max_scrollback = $term->saveLines
1066 1315
1067=item $nrow_plus_saveLines = $term->total_rows 1316=item $nrow_plus_saveLines = $term->total_rows
1068 1317
1069=item $lines_in_scrollback = $term->nsaved 1318=item $topmost_scrollback_row = $term->top_row
1070 1319
1071Return various integers describing terminal characteristics. 1320Return various integers describing terminal characteristics.
1072 1321
1073=item $x_display = $term->display_id 1322=item $x_display = $term->display_id
1074 1323
1102Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1351Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1103AltGr), the meta key (often Alt) and the num lock key, if applicable. 1352AltGr), the meta key (often Alt) and the num lock key, if applicable.
1104 1353
1105=item $view_start = $term->view_start ([$newvalue]) 1354=item $view_start = $term->view_start ([$newvalue])
1106 1355
1107Returns the negative row number of the topmost line. Minimum value is 1356Returns the row number of the topmost displayed line. Maximum value is
1108C<0>, which displays the normal terminal contents. Larger values scroll 1357C<0>, which displays the normal terminal contents. Lower values scroll
1109this many lines into the scrollback buffer. 1358this many lines into the scrollback buffer.
1110 1359
1111=item $term->want_refresh 1360=item $term->want_refresh
1112 1361
1113Requests a screen refresh. At the next opportunity, rxvt-unicode will 1362Requests a screen refresh. At the next opportunity, rxvt-unicode will
1192Return the row number of the first/last row of the line, respectively. 1441Return the row number of the first/last row of the line, respectively.
1193 1442
1194=item $offset = $line->offset_of ($row, $col) 1443=item $offset = $line->offset_of ($row, $col)
1195 1444
1196Returns the character offset of the given row|col pair within the logical 1445Returns the character offset of the given row|col pair within the logical
1197line. 1446line. Works for rows outside the line, too, and returns corresponding
1447offsets outside the string.
1198 1448
1199=item ($row, $col) = $line->coord_of ($offset) 1449=item ($row, $col) = $line->coord_of ($offset)
1200 1450
1201Translates a string offset into terminal coordinates again. 1451Translates a string offset into terminal coordinates again.
1202 1452
1425 my $env = $self->{term}->env; 1675 my $env = $self->{term}->env;
1426 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. 1676 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1427 delete $env->{LC_ALL}; 1677 delete $env->{LC_ALL};
1428 $env->{LC_CTYPE} = $self->{term}->locale; 1678 $env->{LC_CTYPE} = $self->{term}->locale;
1429 1679
1430 urxvt::term->new ($env, $self->{term}->resource ("name"), 1680 urxvt::term->new ($env, "popup",
1431 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1681 "--perl-lib" => "", "--perl-ext-common" => "",
1682 "-pty-fd" => -1, "-sl" => 0,
1683 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1432 "--transient-for" => $self->{term}->parent, 1684 "--transient-for" => $self->{term}->parent,
1433 "-display" => $self->{term}->display_id, 1685 "-display" => $self->{term}->display_id,
1434 "-pe" => "urxvt-popup") 1686 "-pe" => "urxvt-popup")
1435 or die "unable to create popup window\n"; 1687 or die "unable to create popup window\n";
1436} 1688}
1441 delete $self->{term}{_destroy}{$self}; 1693 delete $self->{term}{_destroy}{$self};
1442 $self->{term}->ungrab; 1694 $self->{term}->ungrab;
1443} 1695}
1444 1696
1445=back 1697=back
1698
1699=cut
1700
1701package urxvt::watcher;
1702
1703@urxvt::timer::ISA = __PACKAGE__;
1704@urxvt::iow::ISA = __PACKAGE__;
1705@urxvt::pw::ISA = __PACKAGE__;
1706@urxvt::iw::ISA = __PACKAGE__;
1446 1707
1447=head2 The C<urxvt::timer> Class 1708=head2 The C<urxvt::timer> Class
1448 1709
1449This class implements timer watchers/events. Time is represented as a 1710This class implements timer watchers/events. Time is represented as a
1450fractional number of seconds since the epoch. Example: 1711fractional number of seconds since the epoch. Example:
1488Start the timer. 1749Start the timer.
1489 1750
1490=item $timer = $timer->start ($tstamp) 1751=item $timer = $timer->start ($tstamp)
1491 1752
1492Set the event trigger time to C<$tstamp> and start the timer. 1753Set the event trigger time to C<$tstamp> and start the timer.
1754
1755=item $timer = $timer->after ($delay)
1756
1757Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1493 1758
1494=item $timer = $timer->stop 1759=item $timer = $timer->stop
1495 1760
1496Stop the timer. 1761Stop the timer.
1497 1762
1544 1809
1545Stop watching for events on the given filehandle. 1810Stop watching for events on the given filehandle.
1546 1811
1547=back 1812=back
1548 1813
1814=head2 The C<urxvt::iw> Class
1815
1816This class implements idle watchers, that get called automatically when
1817the process is idle. They should return as fast as possible, after doing
1818some useful work.
1819
1820=over 4
1821
1822=item $iw = new urxvt::iw
1823
1824Create a new idle watcher object in stopped state.
1825
1826=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1827
1828Set the callback to be called when the watcher triggers.
1829
1830=item $timer = $timer->start
1831
1832Start the watcher.
1833
1834=item $timer = $timer->stop
1835
1836Stop the watcher.
1837
1838=back
1839
1840=head2 The C<urxvt::pw> Class
1841
1842This class implements process watchers. They create an event whenever a
1843process exits, after which they stop automatically.
1844
1845 my $pid = fork;
1846 ...
1847 $term->{pw} = urxvt::pw
1848 ->new
1849 ->start ($pid)
1850 ->cb (sub {
1851 my ($pw, $exit_status) = @_;
1852 ...
1853 });
1854
1855=over 4
1856
1857=item $pw = new urxvt::pw
1858
1859Create a new process watcher in stopped state.
1860
1861=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1862
1863Set the callback to be called when the timer triggers.
1864
1865=item $pw = $timer->start ($pid)
1866
1867Tells the wqtcher to start watching for process C<$pid>.
1868
1869=item $pw = $pw->stop
1870
1871Stop the watcher.
1872
1873=back
1874
1549=head1 ENVIRONMENT 1875=head1 ENVIRONMENT
1550 1876
1551=head2 URXVT_PERL_VERBOSITY 1877=head2 URXVT_PERL_VERBOSITY
1552 1878
1553This variable controls the verbosity level of the perl extension. Higher 1879This variable controls the verbosity level of the perl extension. Higher
1557 1883
1558=item == 0 - fatal messages 1884=item == 0 - fatal messages
1559 1885
1560=item >= 3 - script loading and management 1886=item >= 3 - script loading and management
1561 1887
1562=item >=10 - all events received 1888=item >=10 - all called hooks
1889
1890=item >=11 - hook reutrn values
1563 1891
1564=back 1892=back
1565 1893
1566=head1 AUTHOR 1894=head1 AUTHOR
1567 1895

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