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Revision 1.84 by root, Thu Jan 12 02:20:56 2006 UTC vs.
Revision 1.120 by root, Fri Jan 20 22:05:41 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 and 180Uses per-line display filtering (C<on_line_update>) to underline urls and
90make them clickable. When middle-clicked, the program specified in the 181make them clickable. When middle-clicked, the program specified in the
91resource C<urlLauncher> (default C<x-www-browser>) will be started. 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
92 192
93=item block-graphics-to-ascii 193=item block-graphics-to-ascii
94 194
95A 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,
96by replacing all line-drawing characters (U+2500 .. U+259F) by a 196by replacing all line-drawing characters (U+2500 .. U+259F) by a
97similar-looking ascii character. 197similar-looking ascii character.
98 198
199=item digital-clock
200
201Displays a digital clock using the built-in overlay.
202
99=item example-refresh-hooks 203=item example-refresh-hooks
100 204
101Displays 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
102window. Illustrates overwriting the refresh callbacks to create your own 206window. Illustrates overwriting the refresh callbacks to create your own
103overlays 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/%
104 237
105=back 238=back
106 239
107=head1 API DOCUMENTATION 240=head1 API DOCUMENTATION
108 241
181called whenever the relevant event happens. 314called whenever the relevant event happens.
182 315
183The 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
184the in the C<Extension Objects> section. 317the in the C<Extension Objects> section.
185 318
186B<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
187event 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
188skipped, and the relevant action might not be carried out by the C++ code. 321relevant action might not be carried out by the C++ code.
189 322
190I<< When in doubt, return a false value (preferably C<()>). >> 323I<< When in doubt, return a false value (preferably C<()>). >>
191 324
192=over 4 325=over 4
193 326
194=item on_init $term 327=item on_init $term
195 328
196Called after a new terminal object has been initialized, but before 329Called after a new terminal object has been initialized, but before
197windows 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
198call or deliver senseless data, as terminal size and other characteristics 331call or deliver senseless data, as terminal size and other characteristics
199have not yet been determined. You can safely query and change resources, 332have not yet been determined. You can safely query and change resources
200though. 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.
201 346
202=item on_reset $term 347=item on_reset $term
203 348
204Called 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
205control 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
206variables. 351variables.
207 352
208=item on_start $term 353=item on_child_start $term, $pid
209 354
210Called at the very end of initialisation of a new terminal, just before 355Called just after the child process has been C<fork>ed.
211returning 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>.
212 361
213=item on_sel_make $term, $eventtime 362=item on_sel_make $term, $eventtime
214 363
215Called 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
216selection 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
230=item on_sel_extend $term 379=item on_sel_extend $term
231 380
232Called 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
233click) and is either supposed to return false (normal operation), or 382click) and is either supposed to return false (normal operation), or
234should 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
235processing. 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.
236 387
237See the F<selection> example extension. 388See the F<selection> example extension.
238 389
239=item on_view_change $term, $offset 390=item on_view_change $term, $offset
240 391
307 458
308Called whenever the user presses a key combination that has a 459Called whenever the user presses a key combination that has a
309C<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>
310resource in the @@RXVT_NAME@@(1) manpage). 461resource in the @@RXVT_NAME@@(1) manpage).
311 462
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
312=item on_focus_in $term 469=item on_focus_in $term
313 470
314Called whenever the window gets the keyboard focus, before rxvt-unicode 471Called whenever the window gets the keyboard focus, before rxvt-unicode
315does focus in processing. 472does focus in processing.
316 473
317=item on_focus_out $term 474=item on_focus_out $term
318 475
319Called wheneever the window loses keyboard focus, before rxvt-unicode does 476Called wheneever the window loses keyboard focus, before rxvt-unicode does
320focus out processing. 477focus out processing.
321 478
479=item on_configure_notify $term, $event
480
481=item on_property_notify $term, $event
482
322=item on_key_press $term, $event, $keysym, $octets 483=item on_key_press $term, $event, $keysym, $octets
323 484
324=item on_key_release $term, $event, $keysym 485=item on_key_release $term, $event, $keysym
325 486
326=item on_button_press $term, $event 487=item on_button_press $term, $event
335 496
336Called whenever the corresponding X event is received for the terminal If 497Called whenever the corresponding X event is received for the terminal If
337the hook returns true, then the even will be ignored by rxvt-unicode. 498the hook returns true, then the even will be ignored by rxvt-unicode.
338 499
339The event is a hash with most values as named by Xlib (see the XEvent 500The event is a hash with most values as named by Xlib (see the XEvent
340manpage), with the additional members C<row> and C<col>, which are the row 501manpage), with the additional members C<row> and C<col>, which are the
341and column under the mouse cursor. 502(real, not screen-based) row and column under the mouse cursor.
342 503
343C<on_key_press> additionally receives the string rxvt-unicode would 504C<on_key_press> additionally receives the string rxvt-unicode would
344output, if any, in locale-specific encoding. 505output, if any, in locale-specific encoding.
345 506
346subwindow. 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).
347 517
348=back 518=back
349 519
350=cut 520=cut
351 521
357use Scalar::Util (); 527use Scalar::Util ();
358use List::Util (); 528use List::Util ();
359 529
360our $VERSION = 1; 530our $VERSION = 1;
361our $TERM; 531our $TERM;
532our @TERM_INIT;
533our @TERM_EXT;
362our @HOOKNAME; 534our @HOOKNAME;
363our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 535our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
364our %OPTION; 536our %OPTION;
365 537
366our $LIBDIR; 538our $LIBDIR;
388=item $urxvt::TERM 560=item $urxvt::TERM
389 561
390The current terminal. This variable stores the current C<urxvt::term> 562The current terminal. This variable stores the current C<urxvt::term>
391object, whenever a callback/hook is executing. 563object, whenever a callback/hook is executing.
392 564
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
393=back 581=back
394 582
395=head2 Functions in the C<urxvt> Package 583=head2 Functions in the C<urxvt> Package
396 584
397=over 4 585=over 4
411Using 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
412correct place, e.g. on stderr of the connecting urxvtc client. 600correct place, e.g. on stderr of the connecting urxvtc client.
413 601
414Messages have a size limit of 1023 bytes currently. 602Messages have a size limit of 1023 bytes currently.
415 603
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 604=item $time = urxvt::NOW
423 605
424Returns the "current time" (as per the event loop). 606Returns the "current time" (as per the event loop).
425 607
426=item urxvt::CurrentTime 608=item urxvt::CurrentTime
427 609
428=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 610=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
429Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 611Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
430Button4Mask, 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
431 629
432Various constants for use in X calls and event processing. 630Various constants for use in X calls and event processing.
433 631
434=back 632=back
435 633
486=back 684=back
487 685
488=cut 686=cut
489 687
490BEGIN { 688BEGIN {
491 urxvt->bootstrap;
492
493 # overwrite perl's warn 689 # overwrite perl's warn
494 *CORE::GLOBAL::warn = sub { 690 *CORE::GLOBAL::warn = sub {
495 my $msg = join "", @_; 691 my $msg = join "", @_;
496 $msg .= "\n" 692 $msg .= "\n"
497 unless $msg =~ /\n$/; 693 unless $msg =~ /\n$/;
498 urxvt::warn ($msg); 694 urxvt::warn ($msg);
499 }; 695 };
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} 696}
507 697
508my @hook_count;
509my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 698my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
510 699
511sub verbose { 700sub verbose {
512 my ($level, $msg) = @_; 701 my ($level, $msg) = @_;
513 warn "$msg\n" if $level <= $verbosity; 702 warn "$msg\n" if $level <= $verbosity;
514} 703}
515 704
516my $extension_pkg = "extension0000";
517my %extension_pkg; 705my %extension_pkg;
518 706
519# load a single script into its own package, once only 707# load a single script into its own package, once only
520sub extension_package($) { 708sub extension_package($) {
521 my ($path) = @_; 709 my ($path) = @_;
522 710
523 $extension_pkg{$path} ||= do { 711 $extension_pkg{$path} ||= do {
524 my $pkg = "urxvt::" . ($extension_pkg++); 712 $path =~ /([^\/\\]+)$/;
713 my $pkg = $1;
714 $pkg =~ s/[^[:word:]]/_/g;
715 $pkg = "urxvt::ext::$pkg";
525 716
526 verbose 3, "loading extension '$path' into package '$pkg'"; 717 verbose 3, "loading extension '$path' into package '$pkg'";
527 718
528 open my $fh, "<:raw", $path 719 open my $fh, "<:raw", $path
529 or die "$path: $!"; 720 or die "$path: $!";
530 721
531 my $source = untaint 722 my $source =
532 "package $pkg; use strict; use utf8;\n" 723 "package $pkg; use strict; use utf8;\n"
533 . "use base urxvt::term::extension::;\n"
534 . "#line 1 \"$path\"\n{\n" 724 . "#line 1 \"$path\"\n{\n"
535 . (do { local $/; <$fh> }) 725 . (do { local $/; <$fh> })
536 . "\n};\n1"; 726 . "\n};\n1";
537 727
538 eval $source 728 eval $source
552 if ($htype == 0) { # INIT 742 if ($htype == 0) { # INIT
553 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 743 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
554 744
555 my %ext_arg; 745 my %ext_arg;
556 746
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
557 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 756 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
558 if ($_ eq "default") { 757 if ($_ eq "default") {
559 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 758 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
560 } elsif (/^-(.*)$/) { 759 } elsif (/^-(.*)$/) {
561 delete $ext_arg{$1}; 760 delete $ext_arg{$1};
562 } elsif (/^([^<]+)<(.*)>$/) { 761 } elsif (/^([^<]+)<(.*)>$/) {
587 if $verbosity >= 10; 786 if $verbosity >= 10;
588 787
589 keys %$cb; 788 keys %$cb;
590 789
591 while (my ($pkg, $cb) = each %$cb) { 790 while (my ($pkg, $cb) = each %$cb) {
592 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 791 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
593 and last; 792 $retval ||= $retval_;
594 793
595 if ($@) { 794 if ($@) {
596 $TERM->ungrab; # better to lose the grab than the session 795 $TERM->ungrab; # better to lose the grab than the session
597 warn $@; 796 warn $@;
598 } 797 }
599 } 798 }
799
800 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
801 if $verbosity >= 11;
600 } 802 }
601 803
602 if ($htype == 1) { # DESTROY 804 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 $htype, 0;
607 }
608 }
609
610 # clear package objects 805 # clear package objects
611 %$_ = () for values %{ $TERM->{_pkg} }; 806 %$_ = () for values %{ $TERM->{_pkg} };
612 807
613 # clear package 808 # clear package
614 %$TERM = (); 809 %$TERM = ();
615 } 810 }
616 811
617 $retval 812 $retval
618}
619
620sub exec_async(@) {
621 my $pid = fork;
622
623 return
624 if !defined $pid or $pid;
625
626 %ENV = %{ $TERM->env };
627
628 exec @_;
629 _exit 255;
630} 813}
631 814
632# urxvt::term::extension 815# urxvt::term::extension
633 816
634package urxvt::term::extension; 817package urxvt::term::extension;
640 while (my ($name, $cb) = each %hook) { 823 while (my ($name, $cb) = each %hook) {
641 my $htype = $HOOKTYPE{uc $name}; 824 my $htype = $HOOKTYPE{uc $name};
642 defined $htype 825 defined $htype
643 or Carp::croak "unsupported hook type '$name'"; 826 or Carp::croak "unsupported hook type '$name'";
644 827
828 $self->set_should_invoke ($htype, +1)
645 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 829 unless exists $self->{term}{_hook}[$htype]{$pkg};
646 $hook_count[$htype]++
647 or urxvt::set_should_invoke $htype, 1;
648 }
649 830
650 $self->{term}{_hook}[$htype]{$pkg} = $cb; 831 $self->{term}{_hook}[$htype]{$pkg} = $cb;
651 } 832 }
652} 833}
653 834
658 for my $name (@hook) { 839 for my $name (@hook) {
659 my $htype = $HOOKTYPE{uc $name}; 840 my $htype = $HOOKTYPE{uc $name};
660 defined $htype 841 defined $htype
661 or Carp::croak "unsupported hook type '$name'"; 842 or Carp::croak "unsupported hook type '$name'";
662 843
844 $self->set_should_invoke ($htype, -1)
663 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 845 if delete $self->{term}{_hook}[$htype]{$pkg};
664 --$hook_count[$htype]
665 or urxvt::set_should_invoke $htype, 0;
666 }
667 } 846 }
668} 847}
669 848
670our $AUTOLOAD; 849our $AUTOLOAD;
671 850
777# find on_xxx subs in the package and register them 956# find on_xxx subs in the package and register them
778# as hooks 957# as hooks
779sub register_package { 958sub register_package {
780 my ($self, $pkg, $argv) = @_; 959 my ($self, $pkg, $argv) = @_;
781 960
961 no strict 'refs';
962
963 urxvt::verbose 6, "register package $pkg to $self";
964
965 @{"$pkg\::ISA"} = urxvt::term::extension::;
966
782 my $proxy = bless { 967 my $proxy = bless {
783 _pkg => $pkg, 968 _pkg => $pkg,
784 argv => $argv, 969 argv => $argv,
785 }, $pkg; 970 }, $pkg;
786 Scalar::Util::weaken ($proxy->{term} = $self); 971 Scalar::Util::weaken ($proxy->{term} = $self);
817 1002
818Destroy the terminal object (close the window, free resources 1003Destroy the terminal object (close the window, free resources
819etc.). 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
820watchers (timers, io watchers) are still active. 1005watchers (timers, io watchers) are still active.
821 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
822=item $isset = $term->option ($optval[, $set]) 1032=item $isset = $term->option ($optval[, $set])
823 1033
824Returns true if the option specified by C<$optval> is enabled, and 1034Returns true if the option specified by C<$optval> is enabled, and
825optionally 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
826C<%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.
828Here 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
829source file F</src/optinc.h> to see the actual list: 1039source file F</src/optinc.h> to see the actual list:
830 1040
831 borderLess console cursorBlink cursorUnderline hold iconic insecure 1041 borderLess console cursorBlink cursorUnderline hold iconic insecure
832 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1042 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
833 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1043 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
834 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1044 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
835 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1045 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
836 tripleclickwords utmpInhibit visualBell 1046 transparent tripleclickwords utmpInhibit visualBell
837 1047
838=item $value = $term->resource ($name[, $newval]) 1048=item $value = $term->resource ($name[, $newval])
839 1049
840Returns the current resource value associated with a given name and 1050Returns the current resource value associated with a given name and
841optionally 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>
858 1068
859 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1069 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
860 borderLess color cursorBlink cursorUnderline cutchars delete_key 1070 borderLess color cursorBlink cursorUnderline cutchars delete_key
861 display_name embed ext_bwidth fade font geometry hold iconName 1071 display_name embed ext_bwidth fade font geometry hold iconName
862 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1072 imFont imLocale inputMethod insecure int_bwidth intensityStyles
863 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1073 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
864 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1074 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
865 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1075 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
866 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1076 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
867 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1077 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
868 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1078 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
869 shade term_name title transparent transparent_all tripleclickwords 1079 secondaryScreen secondaryScroll selectstyle shade term_name title
870 utmpInhibit visualBell 1080 transient_for transparent transparent_all tripleclickwords utmpInhibit
1081 visualBell
871 1082
872=cut 1083=cut
873 1084
874sub resource($$;$) { 1085sub resource($$;$) {
875 my ($self, $name) = (shift, shift); 1086 my ($self, $name) = (shift, shift);
910=item ($row, $col) = $term->selection_end ([$row, $col]) 1121=item ($row, $col) = $term->selection_end ([$row, $col])
911 1122
912Return the current values of the selection mark, begin or end positions, 1123Return the current values of the selection mark, begin or end positions,
913and optionally set them to new values. 1124and optionally set them to new values.
914 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
915=item $success = $term->selection_grab ($eventtime) 1133=item $success = $term->selection_grab ($eventtime)
916 1134
917Try 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
918by 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.
919 1138
920=item $oldtext = $term->selection ([$newtext]) 1139=item $oldtext = $term->selection ([$newtext])
921 1140
922Return the current selection text and optionally replace it by C<$newtext>. 1141Return the current selection text and optionally replace it by C<$newtext>.
923 1142
1016Convert the given locale-encoded octets into a perl string. 1235Convert the given locale-encoded octets into a perl string.
1017 1236
1018=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])
1019 1238
1020XORs the rendition values in the given span with the provided value 1239XORs the rendition values in the given span with the provided value
1021(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
1022to the selection. 1241refresh hooks to provide effects similar to the selection.
1023 1242
1024=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[, $rstyle2]])
1025 1244
1026Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing 1245Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1027whitespace will additionally be xored with the C<$rstyle2>, which defaults 1246whitespace will additionally be xored with the C<$rstyle2>, which defaults
1028to 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
1029it instead. 1248it instead. Both styles I<MUST NOT> contain font styles.
1030 1249
1031=item $term->scr_bell 1250=item $term->scr_bell
1032 1251
1033Ring the bell! 1252Ring the bell!
1034 1253
1068 1287
1069=item $windowid = $term->vt 1288=item $windowid = $term->vt
1070 1289
1071Return the window id of the terminal window. 1290Return the window id of the terminal window.
1072 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
1073=item $window_width = $term->width 1299=item $window_width = $term->width
1074 1300
1075=item $window_height = $term->height 1301=item $window_height = $term->height
1076 1302
1077=item $font_width = $term->fwidth 1303=item $font_width = $term->fwidth
1090 1316
1091=item $max_scrollback = $term->saveLines 1317=item $max_scrollback = $term->saveLines
1092 1318
1093=item $nrow_plus_saveLines = $term->total_rows 1319=item $nrow_plus_saveLines = $term->total_rows
1094 1320
1095=item $lines_in_scrollback = $term->nsaved 1321=item $topmost_scrollback_row = $term->top_row
1096 1322
1097Return various integers describing terminal characteristics. 1323Return various integers describing terminal characteristics.
1098 1324
1099=item $x_display = $term->display_id 1325=item $x_display = $term->display_id
1100 1326
1128Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1354Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1129AltGr), 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.
1130 1356
1131=item $view_start = $term->view_start ([$newvalue]) 1357=item $view_start = $term->view_start ([$newvalue])
1132 1358
1133Returns the negative row number of the topmost line. Minimum value is 1359Returns the row number of the topmost displayed line. Maximum value is
1134C<0>, which displays the normal terminal contents. Larger values scroll 1360C<0>, which displays the normal terminal contents. Lower values scroll
1135this many lines into the scrollback buffer. 1361this many lines into the scrollback buffer.
1136 1362
1137=item $term->want_refresh 1363=item $term->want_refresh
1138 1364
1139Requests a screen refresh. At the next opportunity, rxvt-unicode will 1365Requests a screen refresh. At the next opportunity, rxvt-unicode will
1218Return 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.
1219 1445
1220=item $offset = $line->offset_of ($row, $col) 1446=item $offset = $line->offset_of ($row, $col)
1221 1447
1222Returns the character offset of the given row|col pair within the logical 1448Returns the character offset of the given row|col pair within the logical
1223line. 1449line. Works for rows outside the line, too, and returns corresponding
1450offsets outside the string.
1224 1451
1225=item ($row, $col) = $line->coord_of ($offset) 1452=item ($row, $col) = $line->coord_of ($offset)
1226 1453
1227Translates a string offset into terminal coordinates again. 1454Translates a string offset into terminal coordinates again.
1228 1455
1341 1568
1342Calls XUngrab for the most recent grab. Is called automatically on 1569Calls XUngrab for the most recent grab. Is called automatically on
1343evaluation 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
1344the session. 1571the session.
1345 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
1346=back 1603=back
1347 1604
1348=cut 1605=cut
1349 1606
1350package urxvt::popup; 1607package urxvt::popup;
1451 my $env = $self->{term}->env; 1708 my $env = $self->{term}->env;
1452 # 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.
1453 delete $env->{LC_ALL}; 1710 delete $env->{LC_ALL};
1454 $env->{LC_CTYPE} = $self->{term}->locale; 1711 $env->{LC_CTYPE} = $self->{term}->locale;
1455 1712
1456 urxvt::term->new ($env, $self->{term}->resource ("name"), 1713 urxvt::term->new ($env, "popup",
1457 "--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",
1458 "--transient-for" => $self->{term}->parent, 1717 "--transient-for" => $self->{term}->parent,
1459 "-display" => $self->{term}->display_id, 1718 "-display" => $self->{term}->display_id,
1460 "-pe" => "urxvt-popup") 1719 "-pe" => "urxvt-popup")
1461 or die "unable to create popup window\n"; 1720 or die "unable to create popup window\n";
1462} 1721}
1467 delete $self->{term}{_destroy}{$self}; 1726 delete $self->{term}{_destroy}{$self};
1468 $self->{term}->ungrab; 1727 $self->{term}->ungrab;
1469} 1728}
1470 1729
1471=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__;
1472 1740
1473=head2 The C<urxvt::timer> Class 1741=head2 The C<urxvt::timer> Class
1474 1742
1475This class implements timer watchers/events. Time is represented as a 1743This class implements timer watchers/events. Time is represented as a
1476fractional number of seconds since the epoch. Example: 1744fractional number of seconds since the epoch. Example:
1514Start the timer. 1782Start the timer.
1515 1783
1516=item $timer = $timer->start ($tstamp) 1784=item $timer = $timer->start ($tstamp)
1517 1785
1518Set 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>.
1519 1791
1520=item $timer = $timer->stop 1792=item $timer = $timer->stop
1521 1793
1522Stop the timer. 1794Stop the timer.
1523 1795
1570 1842
1571Stop watching for events on the given filehandle. 1843Stop watching for events on the given filehandle.
1572 1844
1573=back 1845=back
1574 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
1575=head1 ENVIRONMENT 1908=head1 ENVIRONMENT
1576 1909
1577=head2 URXVT_PERL_VERBOSITY 1910=head2 URXVT_PERL_VERBOSITY
1578 1911
1579This variable controls the verbosity level of the perl extension. Higher 1912This variable controls the verbosity level of the perl extension. Higher
1583 1916
1584=item == 0 - fatal messages 1917=item == 0 - fatal messages
1585 1918
1586=item >= 3 - script loading and management 1919=item >= 3 - script loading and management
1587 1920
1588=item >=10 - all events received 1921=item >=10 - all called hooks
1922
1923=item >=11 - hook reutrn values
1589 1924
1590=back 1925=back
1591 1926
1592=head1 AUTHOR 1927=head1 AUTHOR
1593 1928

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