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Revision 1.78 by root, Wed Jan 11 01:01:52 2006 UTC vs.
Revision 1.119 by root, Fri Jan 20 18:59:31 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
480
481=item on_property_notify $term, $event
319 482
320=item on_key_press $term, $event, $keysym, $octets 483=item on_key_press $term, $event, $keysym, $octets
321 484
322=item on_key_release $term, $event, $keysym 485=item on_key_release $term, $event, $keysym
323 486
340 503
341C<on_key_press> additionally receives the string rxvt-unicode would 504C<on_key_press> additionally receives the string rxvt-unicode would
342output, if any, in locale-specific encoding. 505output, if any, in locale-specific encoding.
343 506
344subwindow. 507subwindow.
508
509=item on_client_message $term, $event
510
511=item on_wm_protocols $term, $event
512
513=item on_wm_delete_window $term, $event
514
515Called when various types of ClientMessage events are received (all with
516format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
345 517
346=back 518=back
347 519
348=cut 520=cut
349 521
355use Scalar::Util (); 527use Scalar::Util ();
356use List::Util (); 528use List::Util ();
357 529
358our $VERSION = 1; 530our $VERSION = 1;
359our $TERM; 531our $TERM;
532our @TERM_INIT;
533our @TERM_EXT;
360our @HOOKNAME; 534our @HOOKNAME;
361our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 535our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
362our %OPTION; 536our %OPTION;
363 537
364our $LIBDIR; 538our $LIBDIR;
386=item $urxvt::TERM 560=item $urxvt::TERM
387 561
388The current terminal. This variable stores the current C<urxvt::term> 562The current terminal. This variable stores the current C<urxvt::term>
389object, whenever a callback/hook is executing. 563object, whenever a callback/hook is executing.
390 564
565=item @urxvt::TERM_INIT
566
567All coderefs in this array will be called as methods of the next newly
568created C<urxvt::term> object (during the C<on_init> phase). The array
569gets cleared before the codereferences that were in it are being executed,
570so coderefs can push themselves onto it again if they so desire.
571
572This complements to the perl-eval commandline option, but gets executed
573first.
574
575=item @urxvt::TERM_EXT
576
577Works similar to C<@TERM_INIT>, but contains perl package/class names, which
578get registered as normal extensions after calling the hooks in C<@TERM_INIT>
579but before other extensions. Gets cleared just like C<@TERM_INIT>.
580
391=back 581=back
392 582
393=head2 Functions in the C<urxvt> Package 583=head2 Functions in the C<urxvt> Package
394 584
395=over 4 585=over 4
409Using this function has the advantage that its output ends up in the 599Using this function has the advantage that its output ends up in the
410correct place, e.g. on stderr of the connecting urxvtc client. 600correct place, e.g. on stderr of the connecting urxvtc client.
411 601
412Messages have a size limit of 1023 bytes currently. 602Messages have a size limit of 1023 bytes currently.
413 603
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 604=item $time = urxvt::NOW
421 605
422Returns the "current time" (as per the event loop). 606Returns the "current time" (as per the event loop).
423 607
424=item urxvt::CurrentTime 608=item urxvt::CurrentTime
425 609
426=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 610=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
427Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 611Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
428Button4Mask, Button5Mask, AnyModifier 612Button4Mask, Button5Mask, AnyModifier
613
614=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
615ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
616PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
617Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
618KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
619ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
620FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
621
622=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
623EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
624GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
625UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
626ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
627CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
628SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
429 629
430Various constants for use in X calls and event processing. 630Various constants for use in X calls and event processing.
431 631
432=back 632=back
433 633
484=back 684=back
485 685
486=cut 686=cut
487 687
488BEGIN { 688BEGIN {
489 urxvt->bootstrap;
490
491 # overwrite perl's warn 689 # overwrite perl's warn
492 *CORE::GLOBAL::warn = sub { 690 *CORE::GLOBAL::warn = sub {
493 my $msg = join "", @_; 691 my $msg = join "", @_;
494 $msg .= "\n" 692 $msg .= "\n"
495 unless $msg =~ /\n$/; 693 unless $msg =~ /\n$/;
496 urxvt::warn ($msg); 694 urxvt::warn ($msg);
497 }; 695 };
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} 696}
504 697
505my @hook_count;
506my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 698my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
507 699
508sub verbose { 700sub verbose {
509 my ($level, $msg) = @_; 701 my ($level, $msg) = @_;
510 warn "$msg\n" if $level <= $verbosity; 702 warn "$msg\n" if $level <= $verbosity;
511} 703}
512 704
513my $extension_pkg = "extension0000";
514my %extension_pkg; 705my %extension_pkg;
515 706
516# load a single script into its own package, once only 707# load a single script into its own package, once only
517sub extension_package($) { 708sub extension_package($) {
518 my ($path) = @_; 709 my ($path) = @_;
519 710
520 $extension_pkg{$path} ||= do { 711 $extension_pkg{$path} ||= do {
521 my $pkg = "urxvt::" . ($extension_pkg++); 712 $path =~ /([^\/\\]+)$/;
713 my $pkg = $1;
714 $pkg =~ s/[^[:word:]]/_/g;
715 $pkg = "urxvt::ext::$pkg";
522 716
523 verbose 3, "loading extension '$path' into package '$pkg'"; 717 verbose 3, "loading extension '$path' into package '$pkg'";
524 718
525 open my $fh, "<:raw", $path 719 open my $fh, "<:raw", $path
526 or die "$path: $!"; 720 or die "$path: $!";
527 721
528 my $source = untaint 722 my $source =
529 "package $pkg; use strict; use utf8;\n" 723 "package $pkg; use strict; use utf8;\n"
530 . "use base urxvt::term::extension::;\n"
531 . "#line 1 \"$path\"\n{\n" 724 . "#line 1 \"$path\"\n{\n"
532 . (do { local $/; <$fh> }) 725 . (do { local $/; <$fh> })
533 . "\n};\n1"; 726 . "\n};\n1";
534 727
535 eval $source 728 eval $source
549 if ($htype == 0) { # INIT 742 if ($htype == 0) { # INIT
550 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 743 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
551 744
552 my %ext_arg; 745 my %ext_arg;
553 746
747 {
748 my @init = @TERM_INIT;
749 @TERM_INIT = ();
750 $_->($TERM) for @init;
751 my @pkg = @TERM_EXT;
752 @TERM_EXT = ();
753 $TERM->register_package ($_) for @pkg;
754 }
755
554 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 756 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
555 if ($_ eq "default") { 757 if ($_ eq "default") {
556 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 758 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
557 } elsif (/^-(.*)$/) { 759 } elsif (/^-(.*)$/) {
558 delete $ext_arg{$1}; 760 delete $ext_arg{$1};
559 } elsif (/^([^<]+)<(.*)>$/) { 761 } elsif (/^([^<]+)<(.*)>$/) {
584 if $verbosity >= 10; 786 if $verbosity >= 10;
585 787
586 keys %$cb; 788 keys %$cb;
587 789
588 while (my ($pkg, $cb) = each %$cb) { 790 while (my ($pkg, $cb) = each %$cb) {
589 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 791 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
590 and last; 792 $retval ||= $retval_;
591 793
592 if ($@) { 794 if ($@) {
593 $TERM->ungrab; # better to lose the grab than the session 795 $TERM->ungrab; # better to lose the grab than the session
594 warn $@; 796 warn $@;
595 } 797 }
596 } 798 }
799
800 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
801 if $verbosity >= 11;
597 } 802 }
598 803
599 if ($htype == 1) { # DESTROY 804 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 $htype, 0;
604 }
605 }
606
607 # clear package objects 805 # clear package objects
608 %$_ = () for values %{ $TERM->{_pkg} }; 806 %$_ = () for values %{ $TERM->{_pkg} };
609 807
610 # clear package 808 # clear package
611 %$TERM = (); 809 %$TERM = ();
625 while (my ($name, $cb) = each %hook) { 823 while (my ($name, $cb) = each %hook) {
626 my $htype = $HOOKTYPE{uc $name}; 824 my $htype = $HOOKTYPE{uc $name};
627 defined $htype 825 defined $htype
628 or Carp::croak "unsupported hook type '$name'"; 826 or Carp::croak "unsupported hook type '$name'";
629 827
828 $self->set_should_invoke ($htype, +1)
630 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 829 unless exists $self->{term}{_hook}[$htype]{$pkg};
631 $hook_count[$htype]++
632 or urxvt::set_should_invoke $htype, 1;
633 }
634 830
635 $self->{term}{_hook}[$htype]{$pkg} = $cb; 831 $self->{term}{_hook}[$htype]{$pkg} = $cb;
636 } 832 }
637} 833}
638 834
643 for my $name (@hook) { 839 for my $name (@hook) {
644 my $htype = $HOOKTYPE{uc $name}; 840 my $htype = $HOOKTYPE{uc $name};
645 defined $htype 841 defined $htype
646 or Carp::croak "unsupported hook type '$name'"; 842 or Carp::croak "unsupported hook type '$name'";
647 843
844 $self->set_should_invoke ($htype, -1)
648 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 845 if delete $self->{term}{_hook}[$htype]{$pkg};
649 --$hook_count[$htype]
650 or urxvt::set_should_invoke $htype, 0;
651 }
652 } 846 }
653} 847}
654 848
655our $AUTOLOAD; 849our $AUTOLOAD;
656 850
762# find on_xxx subs in the package and register them 956# find on_xxx subs in the package and register them
763# as hooks 957# as hooks
764sub register_package { 958sub register_package {
765 my ($self, $pkg, $argv) = @_; 959 my ($self, $pkg, $argv) = @_;
766 960
961 no strict 'refs';
962
963 urxvt::verbose 6, "register package $pkg to $self";
964
965 @{"$pkg\::ISA"} = urxvt::term::extension::;
966
767 my $proxy = bless { 967 my $proxy = bless {
768 _pkg => $pkg, 968 _pkg => $pkg,
769 argv => $argv, 969 argv => $argv,
770 }, $pkg; 970 }, $pkg;
771 Scalar::Util::weaken ($proxy->{term} = $self); 971 Scalar::Util::weaken ($proxy->{term} = $self);
802 1002
803Destroy the terminal object (close the window, free resources 1003Destroy the terminal object (close the window, free resources
804etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1004etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
805watchers (timers, io watchers) are still active. 1005watchers (timers, io watchers) are still active.
806 1006
1007=item $term->exec_async ($cmd[, @args])
1008
1009Works like the combination of the C<fork>/C<exec> builtins, which executes
1010("starts") programs in the background. This function takes care of setting
1011the user environment before exec'ing the command (e.g. C<PATH>) and should
1012be preferred over explicit calls to C<exec> or C<system>.
1013
1014Returns the pid of the subprocess or C<undef> on error.
1015
1016=cut
1017
1018sub exec_async {
1019 my $self = shift;
1020
1021 my $pid = fork;
1022
1023 return $pid
1024 if !defined $pid or $pid;
1025
1026 %ENV = %{ $self->env };
1027
1028 exec @_;
1029 urxvt::_exit 255;
1030}
1031
807=item $isset = $term->option ($optval[, $set]) 1032=item $isset = $term->option ($optval[, $set])
808 1033
809Returns true if the option specified by C<$optval> is enabled, and 1034Returns true if the option specified by C<$optval> is enabled, and
810optionally change it. All option values are stored by name in the hash 1035optionally 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. 1036C<%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 1038Here is a a likely non-exhaustive list of option names, please see the
814source file F</src/optinc.h> to see the actual list: 1039source file F</src/optinc.h> to see the actual list:
815 1040
816 borderLess console cursorBlink cursorUnderline hold iconic insecure 1041 borderLess console cursorBlink cursorUnderline hold iconic insecure
817 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1042 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
818 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1043 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
819 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1044 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
820 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1045 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
821 tripleclickwords utmpInhibit visualBell 1046 transparent tripleclickwords utmpInhibit visualBell
822 1047
823=item $value = $term->resource ($name[, $newval]) 1048=item $value = $term->resource ($name[, $newval])
824 1049
825Returns the current resource value associated with a given name and 1050Returns the current resource value associated with a given name and
826optionally sets a new value. Setting values is most useful in the C<init> 1051optionally sets a new value. Setting values is most useful in the C<init>
843 1068
844 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1069 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
845 borderLess color cursorBlink cursorUnderline cutchars delete_key 1070 borderLess color cursorBlink cursorUnderline cutchars delete_key
846 display_name embed ext_bwidth fade font geometry hold iconName 1071 display_name embed ext_bwidth fade font geometry hold iconName
847 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1072 imFont imLocale inputMethod insecure int_bwidth intensityStyles
848 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1073 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
849 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1074 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
850 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1075 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
851 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1076 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
852 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1077 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
853 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1078 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
854 shade term_name title transparent transparent_all tripleclickwords 1079 secondaryScreen secondaryScroll selectstyle shade term_name title
855 utmpInhibit visualBell 1080 transient_for transparent transparent_all tripleclickwords utmpInhibit
1081 visualBell
856 1082
857=cut 1083=cut
858 1084
859sub resource($$;$) { 1085sub resource($$;$) {
860 my ($self, $name) = (shift, shift); 1086 my ($self, $name) = (shift, shift);
861 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 1087 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
862 &urxvt::term::_resource 1088 &urxvt::term::_resource
863} 1089}
864 1090
1091=item $value = $term->x_resource ($pattern)
1092
1093Returns the X-Resource for the given pattern, excluding the program or
1094class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1095same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1096resource with that pattern exists.
1097
1098This method should only be called during the C<on_start> hook, as there is
1099only one resource database per display, and later invocations might return
1100the wrong resources.
1101
865=item $success = $term->parse_keysym ($keysym_spec, $command_string) 1102=item $success = $term->parse_keysym ($keysym_spec, $command_string)
866 1103
867Adds a keymap translation exactly as specified via a resource. See the 1104Adds a keymap translation exactly as specified via a resource. See the
868C<keysym> resource in the @@RXVT_NAME@@(1) manpage. 1105C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
869 1106
884=item ($row, $col) = $term->selection_end ([$row, $col]) 1121=item ($row, $col) = $term->selection_end ([$row, $col])
885 1122
886Return the current values of the selection mark, begin or end positions, 1123Return the current values of the selection mark, begin or end positions,
887and optionally set them to new values. 1124and optionally set them to new values.
888 1125
1126=item $term->selection_make ($eventtime[, $rectangular])
1127
1128Tries to make a selection as set by C<selection_beg> and
1129C<selection_end>. If C<$rectangular> is true (default: false), a
1130rectangular selection will be made. This is the prefered function to make
1131a selection.
1132
889=item $success = $term->selection_grab ($eventtime) 1133=item $success = $term->selection_grab ($eventtime)
890 1134
891Try to request the primary selection from the server (for example, as set 1135Try to request the primary selection text from the server (for example, as
892by the next method). 1136set by the next method). No visual feedback will be given. This function
1137is mostly useful from within C<on_sel_grab> hooks.
893 1138
894=item $oldtext = $term->selection ([$newtext]) 1139=item $oldtext = $term->selection ([$newtext])
895 1140
896Return the current selection text and optionally replace it by C<$newtext>. 1141Return the current selection text and optionally replace it by C<$newtext>.
897 1142
990Convert the given locale-encoded octets into a perl string. 1235Convert the given locale-encoded octets into a perl string.
991 1236
992=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle]) 1237=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
993 1238
994XORs the rendition values in the given span with the provided value 1239XORs the rendition values in the given span with the provided value
995(default: C<RS_RVid>). Useful in refresh hooks to provide effects similar 1240(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
996to the selection. 1241refresh hooks to provide effects similar to the selection.
997 1242
998=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]]) 1243=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
999 1244
1000Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing 1245Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1001whitespace will additionally be xored with the C<$rstyle2>, which defaults 1246whitespace will additionally be xored with the C<$rstyle2>, which defaults
1002to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines 1247to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1003it instead. 1248it instead. Both styles I<MUST NOT> contain font styles.
1004 1249
1005=item $term->scr_bell 1250=item $term->scr_bell
1006 1251
1007Ring the bell! 1252Ring the bell!
1008 1253
1042 1287
1043=item $windowid = $term->vt 1288=item $windowid = $term->vt
1044 1289
1045Return the window id of the terminal window. 1290Return the window id of the terminal window.
1046 1291
1292=item $term->vt_emask_add ($x_event_mask)
1293
1294Adds the specified events to the vt event mask. Useful e.g. when you want
1295to receive pointer events all the times:
1296
1297 $term->vt_emask_add (urxvt::PointerMotionMask);
1298
1047=item $window_width = $term->width 1299=item $window_width = $term->width
1048 1300
1049=item $window_height = $term->height 1301=item $window_height = $term->height
1050 1302
1051=item $font_width = $term->fwidth 1303=item $font_width = $term->fwidth
1064 1316
1065=item $max_scrollback = $term->saveLines 1317=item $max_scrollback = $term->saveLines
1066 1318
1067=item $nrow_plus_saveLines = $term->total_rows 1319=item $nrow_plus_saveLines = $term->total_rows
1068 1320
1069=item $lines_in_scrollback = $term->nsaved 1321=item $topmost_scrollback_row = $term->top_row
1070 1322
1071Return various integers describing terminal characteristics. 1323Return various integers describing terminal characteristics.
1072 1324
1073=item $x_display = $term->display_id 1325=item $x_display = $term->display_id
1074 1326
1102Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1354Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1103AltGr), the meta key (often Alt) and the num lock key, if applicable. 1355AltGr), the meta key (often Alt) and the num lock key, if applicable.
1104 1356
1105=item $view_start = $term->view_start ([$newvalue]) 1357=item $view_start = $term->view_start ([$newvalue])
1106 1358
1107Returns the negative row number of the topmost line. Minimum value is 1359Returns the row number of the topmost displayed line. Maximum value is
1108C<0>, which displays the normal terminal contents. Larger values scroll 1360C<0>, which displays the normal terminal contents. Lower values scroll
1109this many lines into the scrollback buffer. 1361this many lines into the scrollback buffer.
1110 1362
1111=item $term->want_refresh 1363=item $term->want_refresh
1112 1364
1113Requests a screen refresh. At the next opportunity, rxvt-unicode will 1365Requests a screen refresh. At the next opportunity, rxvt-unicode will
1192Return the row number of the first/last row of the line, respectively. 1444Return the row number of the first/last row of the line, respectively.
1193 1445
1194=item $offset = $line->offset_of ($row, $col) 1446=item $offset = $line->offset_of ($row, $col)
1195 1447
1196Returns the character offset of the given row|col pair within the logical 1448Returns the character offset of the given row|col pair within the logical
1197line. 1449line. Works for rows outside the line, too, and returns corresponding
1450offsets outside the string.
1198 1451
1199=item ($row, $col) = $line->coord_of ($offset) 1452=item ($row, $col) = $line->coord_of ($offset)
1200 1453
1201Translates a string offset into terminal coordinates again. 1454Translates a string offset into terminal coordinates again.
1202 1455
1315 1568
1316Calls XUngrab for the most recent grab. Is called automatically on 1569Calls XUngrab for the most recent grab. Is called automatically on
1317evaluation errors, as it is better to lose the grab in the error case as 1570evaluation errors, as it is better to lose the grab in the error case as
1318the session. 1571the session.
1319 1572
1573=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1574
1575=item $atom_name = $term->XGetAtomName ($atom)
1576
1577=item @atoms = $term->XListProperties ($window)
1578
1579=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1580
1581=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1582
1583=item $term->XDeleteProperty ($window, $property)
1584
1585=item $window = $term->DefaultRootWindow
1586
1587=item $term->XReparentWindow ($window, $parent, [$x, $y])
1588
1589=item $term->XMapWindow ($window)
1590
1591=item $term->XUnmapWindow ($window)
1592
1593=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1594
1595=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1596
1597=item $term->XChangeInput ($window, $add_events[, $del_events])
1598
1599Various X or X-related functions. The C<$term> object only serves as
1600the source of the display, otherwise those functions map more-or-less
1601directory onto the X functions of the same name.
1602
1320=back 1603=back
1321 1604
1322=cut 1605=cut
1323 1606
1324package urxvt::popup; 1607package urxvt::popup;
1425 my $env = $self->{term}->env; 1708 my $env = $self->{term}->env;
1426 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. 1709 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1427 delete $env->{LC_ALL}; 1710 delete $env->{LC_ALL};
1428 $env->{LC_CTYPE} = $self->{term}->locale; 1711 $env->{LC_CTYPE} = $self->{term}->locale;
1429 1712
1430 urxvt::term->new ($env, $self->{term}->resource ("name"), 1713 urxvt::term->new ($env, "popup",
1431 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1714 "--perl-lib" => "", "--perl-ext-common" => "",
1715 "-pty-fd" => -1, "-sl" => 0,
1716 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1432 "--transient-for" => $self->{term}->parent, 1717 "--transient-for" => $self->{term}->parent,
1433 "-display" => $self->{term}->display_id, 1718 "-display" => $self->{term}->display_id,
1434 "-pe" => "urxvt-popup") 1719 "-pe" => "urxvt-popup")
1435 or die "unable to create popup window\n"; 1720 or die "unable to create popup window\n";
1436} 1721}
1441 delete $self->{term}{_destroy}{$self}; 1726 delete $self->{term}{_destroy}{$self};
1442 $self->{term}->ungrab; 1727 $self->{term}->ungrab;
1443} 1728}
1444 1729
1445=back 1730=back
1731
1732=cut
1733
1734package urxvt::watcher;
1735
1736@urxvt::timer::ISA = __PACKAGE__;
1737@urxvt::iow::ISA = __PACKAGE__;
1738@urxvt::pw::ISA = __PACKAGE__;
1739@urxvt::iw::ISA = __PACKAGE__;
1446 1740
1447=head2 The C<urxvt::timer> Class 1741=head2 The C<urxvt::timer> Class
1448 1742
1449This class implements timer watchers/events. Time is represented as a 1743This class implements timer watchers/events. Time is represented as a
1450fractional number of seconds since the epoch. Example: 1744fractional number of seconds since the epoch. Example:
1488Start the timer. 1782Start the timer.
1489 1783
1490=item $timer = $timer->start ($tstamp) 1784=item $timer = $timer->start ($tstamp)
1491 1785
1492Set the event trigger time to C<$tstamp> and start the timer. 1786Set the event trigger time to C<$tstamp> and start the timer.
1787
1788=item $timer = $timer->after ($delay)
1789
1790Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1493 1791
1494=item $timer = $timer->stop 1792=item $timer = $timer->stop
1495 1793
1496Stop the timer. 1794Stop the timer.
1497 1795
1544 1842
1545Stop watching for events on the given filehandle. 1843Stop watching for events on the given filehandle.
1546 1844
1547=back 1845=back
1548 1846
1847=head2 The C<urxvt::iw> Class
1848
1849This class implements idle watchers, that get called automatically when
1850the process is idle. They should return as fast as possible, after doing
1851some useful work.
1852
1853=over 4
1854
1855=item $iw = new urxvt::iw
1856
1857Create a new idle watcher object in stopped state.
1858
1859=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1860
1861Set the callback to be called when the watcher triggers.
1862
1863=item $timer = $timer->start
1864
1865Start the watcher.
1866
1867=item $timer = $timer->stop
1868
1869Stop the watcher.
1870
1871=back
1872
1873=head2 The C<urxvt::pw> Class
1874
1875This class implements process watchers. They create an event whenever a
1876process exits, after which they stop automatically.
1877
1878 my $pid = fork;
1879 ...
1880 $term->{pw} = urxvt::pw
1881 ->new
1882 ->start ($pid)
1883 ->cb (sub {
1884 my ($pw, $exit_status) = @_;
1885 ...
1886 });
1887
1888=over 4
1889
1890=item $pw = new urxvt::pw
1891
1892Create a new process watcher in stopped state.
1893
1894=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1895
1896Set the callback to be called when the timer triggers.
1897
1898=item $pw = $timer->start ($pid)
1899
1900Tells the wqtcher to start watching for process C<$pid>.
1901
1902=item $pw = $pw->stop
1903
1904Stop the watcher.
1905
1906=back
1907
1549=head1 ENVIRONMENT 1908=head1 ENVIRONMENT
1550 1909
1551=head2 URXVT_PERL_VERBOSITY 1910=head2 URXVT_PERL_VERBOSITY
1552 1911
1553This variable controls the verbosity level of the perl extension. Higher 1912This variable controls the verbosity level of the perl extension. Higher
1557 1916
1558=item == 0 - fatal messages 1917=item == 0 - fatal messages
1559 1918
1560=item >= 3 - script loading and management 1919=item >= 3 - script loading and management
1561 1920
1562=item >=10 - all events received 1921=item >=10 - all called hooks
1922
1923=item >=11 - hook reutrn values
1563 1924
1564=back 1925=back
1565 1926
1566=head1 AUTHOR 1927=head1 AUTHOR
1567 1928

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