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Revision 1.84 by root, Thu Jan 12 02:20:56 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 and 179Uses per-line display filtering (C<on_line_update>) to underline urls and
90make them clickable. When middle-clicked, the program specified in the 180make them clickable. When middle-clicked, the program specified in the
91resource C<urlLauncher> (default C<x-www-browser>) will be started. 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
92 191
93=item block-graphics-to-ascii 192=item block-graphics-to-ascii
94 193
95A 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,
96by replacing all line-drawing characters (U+2500 .. U+259F) by a 195by replacing all line-drawing characters (U+2500 .. U+259F) by a
97similar-looking ascii character. 196similar-looking ascii character.
98 197
198=item digital-clock
199
200Displays a digital clock using the built-in overlay.
201
99=item example-refresh-hooks 202=item example-refresh-hooks
100 203
101Displays 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
102window. Illustrates overwriting the refresh callbacks to create your own 205window. Illustrates overwriting the refresh callbacks to create your own
103overlays 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/%
104 236
105=back 237=back
106 238
107=head1 API DOCUMENTATION 239=head1 API DOCUMENTATION
108 240
181called whenever the relevant event happens. 313called whenever the relevant event happens.
182 314
183The 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
184the in the C<Extension Objects> section. 316the in the C<Extension Objects> section.
185 317
186B<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
187event 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
188skipped, and the relevant action might not be carried out by the C++ code. 320relevant action might not be carried out by the C++ code.
189 321
190I<< When in doubt, return a false value (preferably C<()>). >> 322I<< When in doubt, return a false value (preferably C<()>). >>
191 323
192=over 4 324=over 4
193 325
194=item on_init $term 326=item on_init $term
195 327
196Called after a new terminal object has been initialized, but before 328Called after a new terminal object has been initialized, but before
197windows 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
198call or deliver senseless data, as terminal size and other characteristics 330call or deliver senseless data, as terminal size and other characteristics
199have not yet been determined. You can safely query and change resources, 331have not yet been determined. You can safely query and change resources
200though. 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.
201 345
202=item on_reset $term 346=item on_reset $term
203 347
204Called 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
205control 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
206variables. 350variables.
207 351
208=item on_start $term 352=item on_child_start $term, $pid
209 353
210Called at the very end of initialisation of a new terminal, just before 354Called just after the child process has been C<fork>ed.
211returning 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>.
212 360
213=item on_sel_make $term, $eventtime 361=item on_sel_make $term, $eventtime
214 362
215Called 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
216selection 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
230=item on_sel_extend $term 378=item on_sel_extend $term
231 379
232Called 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
233click) and is either supposed to return false (normal operation), or 381click) and is either supposed to return false (normal operation), or
234should 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
235processing. 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.
236 386
237See the F<selection> example extension. 387See the F<selection> example extension.
238 388
239=item on_view_change $term, $offset 389=item on_view_change $term, $offset
240 390
307 457
308Called whenever the user presses a key combination that has a 458Called whenever the user presses a key combination that has a
309C<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>
310resource in the @@RXVT_NAME@@(1) manpage). 460resource in the @@RXVT_NAME@@(1) manpage).
311 461
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
312=item on_focus_in $term 468=item on_focus_in $term
313 469
314Called whenever the window gets the keyboard focus, before rxvt-unicode 470Called whenever the window gets the keyboard focus, before rxvt-unicode
315does focus in processing. 471does focus in processing.
316 472
317=item on_focus_out $term 473=item on_focus_out $term
318 474
319Called wheneever the window loses keyboard focus, before rxvt-unicode does 475Called wheneever the window loses keyboard focus, before rxvt-unicode does
320focus out processing. 476focus out processing.
477
478=item on_configure_notify $term, $event
321 479
322=item on_key_press $term, $event, $keysym, $octets 480=item on_key_press $term, $event, $keysym, $octets
323 481
324=item on_key_release $term, $event, $keysym 482=item on_key_release $term, $event, $keysym
325 483
342 500
343C<on_key_press> additionally receives the string rxvt-unicode would 501C<on_key_press> additionally receives the string rxvt-unicode would
344output, if any, in locale-specific encoding. 502output, if any, in locale-specific encoding.
345 503
346subwindow. 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).
347 514
348=back 515=back
349 516
350=cut 517=cut
351 518
357use Scalar::Util (); 524use Scalar::Util ();
358use List::Util (); 525use List::Util ();
359 526
360our $VERSION = 1; 527our $VERSION = 1;
361our $TERM; 528our $TERM;
529our @TERM_INIT;
530our @TERM_EXT;
362our @HOOKNAME; 531our @HOOKNAME;
363our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 532our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
364our %OPTION; 533our %OPTION;
365 534
366our $LIBDIR; 535our $LIBDIR;
388=item $urxvt::TERM 557=item $urxvt::TERM
389 558
390The current terminal. This variable stores the current C<urxvt::term> 559The current terminal. This variable stores the current C<urxvt::term>
391object, whenever a callback/hook is executing. 560object, whenever a callback/hook is executing.
392 561
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
393=back 578=back
394 579
395=head2 Functions in the C<urxvt> Package 580=head2 Functions in the C<urxvt> Package
396 581
397=over 4 582=over 4
411Using 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
412correct place, e.g. on stderr of the connecting urxvtc client. 597correct place, e.g. on stderr of the connecting urxvtc client.
413 598
414Messages have a size limit of 1023 bytes currently. 599Messages have a size limit of 1023 bytes currently.
415 600
416=item $is_safe = urxvt::safe
417
418Returns true when it is safe to do potentially unsafe things, such as
419evaluating perl code specified by the user. This is true when urxvt was
420started setuid or setgid.
421
422=item $time = urxvt::NOW 601=item $time = urxvt::NOW
423 602
424Returns the "current time" (as per the event loop). 603Returns the "current time" (as per the event loop).
425 604
426=item urxvt::CurrentTime 605=item urxvt::CurrentTime
427 606
428=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 607=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
429Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 608Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
430Button4Mask, 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
431 626
432Various constants for use in X calls and event processing. 627Various constants for use in X calls and event processing.
433 628
434=back 629=back
435 630
486=back 681=back
487 682
488=cut 683=cut
489 684
490BEGIN { 685BEGIN {
491 urxvt->bootstrap;
492
493 # overwrite perl's warn 686 # overwrite perl's warn
494 *CORE::GLOBAL::warn = sub { 687 *CORE::GLOBAL::warn = sub {
495 my $msg = join "", @_; 688 my $msg = join "", @_;
496 $msg .= "\n" 689 $msg .= "\n"
497 unless $msg =~ /\n$/; 690 unless $msg =~ /\n$/;
498 urxvt::warn ($msg); 691 urxvt::warn ($msg);
499 }; 692 };
500
501 # %ENV is the original startup environment
502 delete $ENV{IFS};
503 delete $ENV{CDPATH};
504 delete $ENV{BASH_ENV};
505 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
506} 693}
507 694
508my @hook_count;
509my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 695my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
510 696
511sub verbose { 697sub verbose {
512 my ($level, $msg) = @_; 698 my ($level, $msg) = @_;
513 warn "$msg\n" if $level <= $verbosity; 699 warn "$msg\n" if $level <= $verbosity;
514} 700}
515 701
516my $extension_pkg = "extension0000";
517my %extension_pkg; 702my %extension_pkg;
518 703
519# load a single script into its own package, once only 704# load a single script into its own package, once only
520sub extension_package($) { 705sub extension_package($) {
521 my ($path) = @_; 706 my ($path) = @_;
522 707
523 $extension_pkg{$path} ||= do { 708 $extension_pkg{$path} ||= do {
524 my $pkg = "urxvt::" . ($extension_pkg++); 709 $path =~ /([^\/\\]+)$/;
710 my $pkg = $1;
711 $pkg =~ s/[^[:word:]]/_/g;
712 $pkg = "urxvt::ext::$pkg";
525 713
526 verbose 3, "loading extension '$path' into package '$pkg'"; 714 verbose 3, "loading extension '$path' into package '$pkg'";
527 715
528 open my $fh, "<:raw", $path 716 open my $fh, "<:raw", $path
529 or die "$path: $!"; 717 or die "$path: $!";
530 718
531 my $source = untaint 719 my $source =
532 "package $pkg; use strict; use utf8;\n" 720 "package $pkg; use strict; use utf8;\n"
533 . "use base urxvt::term::extension::;\n"
534 . "#line 1 \"$path\"\n{\n" 721 . "#line 1 \"$path\"\n{\n"
535 . (do { local $/; <$fh> }) 722 . (do { local $/; <$fh> })
536 . "\n};\n1"; 723 . "\n};\n1";
537 724
538 eval $source 725 eval $source
552 if ($htype == 0) { # INIT 739 if ($htype == 0) { # INIT
553 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 740 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
554 741
555 my %ext_arg; 742 my %ext_arg;
556 743
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
557 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 753 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
558 if ($_ eq "default") { 754 if ($_ eq "default") {
559 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 755 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
560 } elsif (/^-(.*)$/) { 756 } elsif (/^-(.*)$/) {
561 delete $ext_arg{$1}; 757 delete $ext_arg{$1};
562 } elsif (/^([^<]+)<(.*)>$/) { 758 } elsif (/^([^<]+)<(.*)>$/) {
587 if $verbosity >= 10; 783 if $verbosity >= 10;
588 784
589 keys %$cb; 785 keys %$cb;
590 786
591 while (my ($pkg, $cb) = each %$cb) { 787 while (my ($pkg, $cb) = each %$cb) {
592 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 788 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
593 and last; 789 $retval ||= $retval_;
594 790
595 if ($@) { 791 if ($@) {
596 $TERM->ungrab; # better to lose the grab than the session 792 $TERM->ungrab; # better to lose the grab than the session
597 warn $@; 793 warn $@;
598 } 794 }
599 } 795 }
796
797 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
798 if $verbosity >= 11;
600 } 799 }
601 800
602 if ($htype == 1) { # DESTROY 801 if ($htype == 1) { # DESTROY
603 if (my $hook = delete $TERM->{_hook}) {
604 for my $htype (0..$#$hook) {
605 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
606 or set_should_invoke $htype, 0;
607 }
608 }
609
610 # clear package objects 802 # clear package objects
611 %$_ = () for values %{ $TERM->{_pkg} }; 803 %$_ = () for values %{ $TERM->{_pkg} };
612 804
613 # clear package 805 # clear package
614 %$TERM = (); 806 %$TERM = ();
615 } 807 }
616 808
617 $retval 809 $retval
618}
619
620sub exec_async(@) {
621 my $pid = fork;
622
623 return
624 if !defined $pid or $pid;
625
626 %ENV = %{ $TERM->env };
627
628 exec @_;
629 _exit 255;
630} 810}
631 811
632# urxvt::term::extension 812# urxvt::term::extension
633 813
634package urxvt::term::extension; 814package urxvt::term::extension;
640 while (my ($name, $cb) = each %hook) { 820 while (my ($name, $cb) = each %hook) {
641 my $htype = $HOOKTYPE{uc $name}; 821 my $htype = $HOOKTYPE{uc $name};
642 defined $htype 822 defined $htype
643 or Carp::croak "unsupported hook type '$name'"; 823 or Carp::croak "unsupported hook type '$name'";
644 824
825 $self->set_should_invoke ($htype, +1)
645 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 826 unless exists $self->{term}{_hook}[$htype]{$pkg};
646 $hook_count[$htype]++
647 or urxvt::set_should_invoke $htype, 1;
648 }
649 827
650 $self->{term}{_hook}[$htype]{$pkg} = $cb; 828 $self->{term}{_hook}[$htype]{$pkg} = $cb;
651 } 829 }
652} 830}
653 831
658 for my $name (@hook) { 836 for my $name (@hook) {
659 my $htype = $HOOKTYPE{uc $name}; 837 my $htype = $HOOKTYPE{uc $name};
660 defined $htype 838 defined $htype
661 or Carp::croak "unsupported hook type '$name'"; 839 or Carp::croak "unsupported hook type '$name'";
662 840
841 $self->set_should_invoke ($htype, -1)
663 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 842 if delete $self->{term}{_hook}[$htype]{$pkg};
664 --$hook_count[$htype]
665 or urxvt::set_should_invoke $htype, 0;
666 }
667 } 843 }
668} 844}
669 845
670our $AUTOLOAD; 846our $AUTOLOAD;
671 847
777# find on_xxx subs in the package and register them 953# find on_xxx subs in the package and register them
778# as hooks 954# as hooks
779sub register_package { 955sub register_package {
780 my ($self, $pkg, $argv) = @_; 956 my ($self, $pkg, $argv) = @_;
781 957
958 no strict 'refs';
959
960 urxvt::verbose 6, "register package $pkg to $self";
961
962 @{"$pkg\::ISA"} = urxvt::term::extension::;
963
782 my $proxy = bless { 964 my $proxy = bless {
783 _pkg => $pkg, 965 _pkg => $pkg,
784 argv => $argv, 966 argv => $argv,
785 }, $pkg; 967 }, $pkg;
786 Scalar::Util::weaken ($proxy->{term} = $self); 968 Scalar::Util::weaken ($proxy->{term} = $self);
817 999
818Destroy the terminal object (close the window, free resources 1000Destroy the terminal object (close the window, free resources
819etc.). 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
820watchers (timers, io watchers) are still active. 1002watchers (timers, io watchers) are still active.
821 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
822=item $isset = $term->option ($optval[, $set]) 1029=item $isset = $term->option ($optval[, $set])
823 1030
824Returns true if the option specified by C<$optval> is enabled, and 1031Returns true if the option specified by C<$optval> is enabled, and
825optionally 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
826C<%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.
828Here 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
829source file F</src/optinc.h> to see the actual list: 1036source file F</src/optinc.h> to see the actual list:
830 1037
831 borderLess console cursorBlink cursorUnderline hold iconic insecure 1038 borderLess console cursorBlink cursorUnderline hold iconic insecure
832 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1039 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
833 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1040 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
834 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1041 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
835 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1042 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
836 tripleclickwords utmpInhibit visualBell 1043 transparent tripleclickwords utmpInhibit visualBell
837 1044
838=item $value = $term->resource ($name[, $newval]) 1045=item $value = $term->resource ($name[, $newval])
839 1046
840Returns the current resource value associated with a given name and 1047Returns the current resource value associated with a given name and
841optionally 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>
858 1065
859 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1066 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
860 borderLess color cursorBlink cursorUnderline cutchars delete_key 1067 borderLess color cursorBlink cursorUnderline cutchars delete_key
861 display_name embed ext_bwidth fade font geometry hold iconName 1068 display_name embed ext_bwidth fade font geometry hold iconName
862 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1069 imFont imLocale inputMethod insecure int_bwidth intensityStyles
863 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1070 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
864 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1071 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
865 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1072 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
866 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1073 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
867 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1074 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
868 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1075 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
869 shade term_name title transparent transparent_all tripleclickwords 1076 secondaryScreen secondaryScroll selectstyle shade term_name title
870 utmpInhibit visualBell 1077 transient_for transparent transparent_all tripleclickwords utmpInhibit
1078 visualBell
871 1079
872=cut 1080=cut
873 1081
874sub resource($$;$) { 1082sub resource($$;$) {
875 my ($self, $name) = (shift, shift); 1083 my ($self, $name) = (shift, shift);
910=item ($row, $col) = $term->selection_end ([$row, $col]) 1118=item ($row, $col) = $term->selection_end ([$row, $col])
911 1119
912Return the current values of the selection mark, begin or end positions, 1120Return the current values of the selection mark, begin or end positions,
913and optionally set them to new values. 1121and optionally set them to new values.
914 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
915=item $success = $term->selection_grab ($eventtime) 1130=item $success = $term->selection_grab ($eventtime)
916 1131
917Try 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
918by 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.
919 1135
920=item $oldtext = $term->selection ([$newtext]) 1136=item $oldtext = $term->selection ([$newtext])
921 1137
922Return the current selection text and optionally replace it by C<$newtext>. 1138Return the current selection text and optionally replace it by C<$newtext>.
923 1139
1016Convert the given locale-encoded octets into a perl string. 1232Convert the given locale-encoded octets into a perl string.
1017 1233
1018=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])
1019 1235
1020XORs the rendition values in the given span with the provided value 1236XORs the rendition values in the given span with the provided value
1021(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
1022to the selection. 1238refresh hooks to provide effects similar to the selection.
1023 1239
1024=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[, $rstyle2]])
1025 1241
1026Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing 1242Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1027whitespace will additionally be xored with the C<$rstyle2>, which defaults 1243whitespace will additionally be xored with the C<$rstyle2>, which defaults
1028to 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
1029it instead. 1245it instead. Both styles I<MUST NOT> contain font styles.
1030 1246
1031=item $term->scr_bell 1247=item $term->scr_bell
1032 1248
1033Ring the bell! 1249Ring the bell!
1034 1250
1068 1284
1069=item $windowid = $term->vt 1285=item $windowid = $term->vt
1070 1286
1071Return the window id of the terminal window. 1287Return the window id of the terminal window.
1072 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
1073=item $window_width = $term->width 1296=item $window_width = $term->width
1074 1297
1075=item $window_height = $term->height 1298=item $window_height = $term->height
1076 1299
1077=item $font_width = $term->fwidth 1300=item $font_width = $term->fwidth
1090 1313
1091=item $max_scrollback = $term->saveLines 1314=item $max_scrollback = $term->saveLines
1092 1315
1093=item $nrow_plus_saveLines = $term->total_rows 1316=item $nrow_plus_saveLines = $term->total_rows
1094 1317
1095=item $lines_in_scrollback = $term->nsaved 1318=item $topmost_scrollback_row = $term->top_row
1096 1319
1097Return various integers describing terminal characteristics. 1320Return various integers describing terminal characteristics.
1098 1321
1099=item $x_display = $term->display_id 1322=item $x_display = $term->display_id
1100 1323
1128Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1351Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1129AltGr), 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.
1130 1353
1131=item $view_start = $term->view_start ([$newvalue]) 1354=item $view_start = $term->view_start ([$newvalue])
1132 1355
1133Returns the negative row number of the topmost line. Minimum value is 1356Returns the row number of the topmost displayed line. Maximum value is
1134C<0>, which displays the normal terminal contents. Larger values scroll 1357C<0>, which displays the normal terminal contents. Lower values scroll
1135this many lines into the scrollback buffer. 1358this many lines into the scrollback buffer.
1136 1359
1137=item $term->want_refresh 1360=item $term->want_refresh
1138 1361
1139Requests a screen refresh. At the next opportunity, rxvt-unicode will 1362Requests a screen refresh. At the next opportunity, rxvt-unicode will
1218Return 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.
1219 1442
1220=item $offset = $line->offset_of ($row, $col) 1443=item $offset = $line->offset_of ($row, $col)
1221 1444
1222Returns the character offset of the given row|col pair within the logical 1445Returns the character offset of the given row|col pair within the logical
1223line. 1446line. Works for rows outside the line, too, and returns corresponding
1447offsets outside the string.
1224 1448
1225=item ($row, $col) = $line->coord_of ($offset) 1449=item ($row, $col) = $line->coord_of ($offset)
1226 1450
1227Translates a string offset into terminal coordinates again. 1451Translates a string offset into terminal coordinates again.
1228 1452
1451 my $env = $self->{term}->env; 1675 my $env = $self->{term}->env;
1452 # 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.
1453 delete $env->{LC_ALL}; 1677 delete $env->{LC_ALL};
1454 $env->{LC_CTYPE} = $self->{term}->locale; 1678 $env->{LC_CTYPE} = $self->{term}->locale;
1455 1679
1456 urxvt::term->new ($env, $self->{term}->resource ("name"), 1680 urxvt::term->new ($env, "popup",
1457 "--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",
1458 "--transient-for" => $self->{term}->parent, 1684 "--transient-for" => $self->{term}->parent,
1459 "-display" => $self->{term}->display_id, 1685 "-display" => $self->{term}->display_id,
1460 "-pe" => "urxvt-popup") 1686 "-pe" => "urxvt-popup")
1461 or die "unable to create popup window\n"; 1687 or die "unable to create popup window\n";
1462} 1688}
1467 delete $self->{term}{_destroy}{$self}; 1693 delete $self->{term}{_destroy}{$self};
1468 $self->{term}->ungrab; 1694 $self->{term}->ungrab;
1469} 1695}
1470 1696
1471=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__;
1472 1707
1473=head2 The C<urxvt::timer> Class 1708=head2 The C<urxvt::timer> Class
1474 1709
1475This class implements timer watchers/events. Time is represented as a 1710This class implements timer watchers/events. Time is represented as a
1476fractional number of seconds since the epoch. Example: 1711fractional number of seconds since the epoch. Example:
1514Start the timer. 1749Start the timer.
1515 1750
1516=item $timer = $timer->start ($tstamp) 1751=item $timer = $timer->start ($tstamp)
1517 1752
1518Set 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>.
1519 1758
1520=item $timer = $timer->stop 1759=item $timer = $timer->stop
1521 1760
1522Stop the timer. 1761Stop the timer.
1523 1762
1570 1809
1571Stop watching for events on the given filehandle. 1810Stop watching for events on the given filehandle.
1572 1811
1573=back 1812=back
1574 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
1575=head1 ENVIRONMENT 1875=head1 ENVIRONMENT
1576 1876
1577=head2 URXVT_PERL_VERBOSITY 1877=head2 URXVT_PERL_VERBOSITY
1578 1878
1579This variable controls the verbosity level of the perl extension. Higher 1879This variable controls the verbosity level of the perl extension. Higher
1583 1883
1584=item == 0 - fatal messages 1884=item == 0 - fatal messages
1585 1885
1586=item >= 3 - script loading and management 1886=item >= 3 - script loading and management
1587 1887
1588=item >=10 - all events received 1888=item >=10 - all called hooks
1889
1890=item >=11 - hook reutrn values
1589 1891
1590=back 1892=back
1591 1893
1592=head1 AUTHOR 1894=head1 AUTHOR
1593 1895

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