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Revision 1.88 by root, Thu Jan 12 12:05:28 2006 UTC vs.
Revision 1.126 by root, Tue Jan 24 19:14:36 2006 UTC

34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. 34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
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
40Or by adding them to the resource for extensions loaded by default:
41
42 URxvt.perl-ext-common: default,automove-background,selection-autotransform
39 43
40=over 4 44=over 4
41 45
42=item selection (enabled by default) 46=item selection (enabled by default)
43 47
63the match. For example, the followign adds a regex that matches everything 67the match. For example, the followign adds a regex that matches everything
64between two vertical bars: 68between two vertical bars:
65 69
66 URxvt.selection.pattern-0: \\|([^|]+)\\| 70 URxvt.selection.pattern-0: \\|([^|]+)\\|
67 71
72Another example: Programs I use often output "absolute path: " at the
73beginning of a line when they process multiple files. The following
74pattern matches the filename (note, there is a single space at the very
75end):
76
77 URxvt.selection.pattern-0: ^(/[^:]+):\
78
68You can look at the source of the selection extension to see more 79You can look at the source of the selection extension to see more
69interesting uses, such as parsing a line from beginning to end. 80interesting uses, such as parsing a line from beginning to end.
70 81
71This extension also offers the following bindable keyboard command: 82This extension also offers following bindable keyboard commands:
72 83
73=over 4 84=over 4
74 85
75=item rot13 86=item rot13
76 87
87 98
88=item selection-popup (enabled by default) 99=item selection-popup (enabled by default)
89 100
90Binds a popup menu to Ctrl-Button3 that lets you convert the selection 101Binds a popup menu to Ctrl-Button3 that lets you convert the selection
91text into various other formats/action (such as uri unescaping, perl 102text into various other formats/action (such as uri unescaping, perl
92evalution, web-browser starting etc.), depending on content. 103evaluation, web-browser starting etc.), depending on content.
104
105Other extensions can extend this popup menu by pushing a code reference
106onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the
107popup is displayed.
108
109It's sole argument is the popup menu, which can be modified. The selection
110is in C<$_>, which can be used to decide wether to add something or not.
111It should either return nothing or a string and a code reference. The
112string will be used as button text and the code reference will be called
113when the button gets activated and should transform C<$_>.
114
115The following will add an entry C<a to b> that transforms all C<a>s in
116the selection to C<b>s, but only if the selection currently contains any
117C<a>s:
118
119 push @{ $self->{term}{selection_popup_hook} }, sub {
120 /a/ ? ("a to be" => sub { s/a/b/g }
121 : ()
122 };
93 123
94=item searchable-scrollback<hotkey> (enabled by default) 124=item searchable-scrollback<hotkey> (enabled by default)
95 125
96Adds regex search functionality to the scrollback buffer, triggered 126Adds regex search functionality to the scrollback buffer, triggered
97by a hotkey (default: C<M-s>). While in search mode, normal terminal 127by a hotkey (default: C<M-s>). While in search mode, normal terminal
104bottom. C<Escape> leaves search mode and returns to the point where search 134bottom. C<Escape> leaves search mode and returns to the point where search
105was started, while C<Enter> or C<Return> stay at the current position and 135was started, while C<Enter> or C<Return> stay at the current position and
106additionally stores the first match in the current line into the primary 136additionally stores the first match in the current line into the primary
107selection. 137selection.
108 138
139=item readline (enabled by default)
140
141A support package that tries to make editing with readline easier. At the
142moment, it reacts to clicking with the left mouse button by trying to
143move the text cursor to this position. It does so by generating as many
144cursor-left or cursor-right keypresses as required (the this only works
145for programs that correctly support wide characters).
146
147To avoid too many false positives, this is only done when:
148
149=over 4
150
151=item - the tty is in ICANON state.
152
153=item - the text cursor is visible.
154
155=item - the primary screen is currently being displayed.
156
157=item - the mouse is on the same (multi-row-) line as the text cursor.
158
159=back
160
161The normal selection mechanism isn't disabled, so quick successive clicks
162might interfere with selection creation in harmless ways.
163
109=item selection-autotransform 164=item selection-autotransform
110 165
111This selection allows you to do automatic transforms on a selection 166This selection allows you to do automatic transforms on a selection
112whenever a selection is made. 167whenever a selection is made.
113 168
117 URxvt.selection-autotransform.0: transform 172 URxvt.selection-autotransform.0: transform
118 URxvt.selection-autotransform.1: transform 173 URxvt.selection-autotransform.1: transform
119 ... 174 ...
120 175
121For example, the following will transform selections of the form 176For example, the following will transform selections of the form
122C<word:number> into C<vi +$number $word>: 177C<filename:number>, often seen in compiler messages, into C<vi +$filename
178$word>:
123 179
124 URxvt.selection-autotransform.0: s/^(S+):(d+):?$/vi +$2 $1\\x0d/ 180 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
125 181
126And this example matches the same,but replaces it with vi-commands you can 182And this example matches the same,but replaces it with vi-commands you can
127paste directory into your (vi :) editor: 183paste directly into your (vi :) editor:
128 184
129 URxvt.selection-autotransform.0: s/^(S+):(d+):?$/\\x1b:e $1\\x0d:$2\\x0d/ 185 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
186
187Of course, this can be modified to suit your needs and your editor :)
188
189To expand the example above to typical perl error messages ("XXX at
190FILENAME line YYY."), you need a slightly more elaborate solution:
191
192 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
193 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
194
195The first line tells the selection code to treat the unchanging part of
196every error message as a selection pattern, and the second line transforms
197the message into vi commands to load the file.
198
199=item tabbed
200
201This transforms the terminal into a tabbar with additional terminals, that
202is, it implements what is commonly refered to as "tabbed terminal". The topmost line
203displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
204button per tab.
205
206Clicking a button will activate that tab. Pressing B<Shift-Left> and
207B<Shift-Right> will switch to the tab left or right of the current one,
208while B<Shift-Down> creates a new tab.
130 209
131=item mark-urls 210=item mark-urls
132 211
133Uses per-line display filtering (C<on_line_update>) to underline urls and 212Uses per-line display filtering (C<on_line_update>) to underline urls and
134make them clickable. When middle-clicked, the program specified in the 213make them clickable. When middle-clicked, the program specified in the
135resource C<urlLauncher> (default C<x-www-browser>) will be started with 214resource C<urlLauncher> (default C<x-www-browser>) will be started with
136the URL as first argument. 215the URL as first argument.
137 216
217=item automove-background
218
219This is basically a one-line extension that dynamically changes the background pixmap offset
220to the window position, in effect creating the same effect as pseudo transparency with
221a custom pixmap. No scaling is supported in this mode. Exmaple:
222
223 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
224
138=item block-graphics-to-ascii 225=item block-graphics-to-ascii
139 226
140A not very useful example of filtering all text output to the terminal, 227A not very useful example of filtering all text output to the terminal,
141by replacing all line-drawing characters (U+2500 .. U+259F) by a 228by replacing all line-drawing characters (U+2500 .. U+259F) by a
142similar-looking ascii character. 229similar-looking ascii character.
148=item example-refresh-hooks 235=item example-refresh-hooks
149 236
150Displays a very simple digital clock in the upper right corner of the 237Displays a very simple digital clock in the upper right corner of the
151window. Illustrates overwriting the refresh callbacks to create your own 238window. Illustrates overwriting the refresh callbacks to create your own
152overlays or changes. 239overlays or changes.
240
241=item selection-pastebin
242
243This is a little rarely useful extension that Uploads the selection as
244textfile to a remote site (or does other things). (The implementation is
245not currently secure for use in a multiuser environment as it writes to
246F</tmp> directly.).
247
248It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
249i.e.
250
251 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
252
253Pressing this combination runs a command with C<%> replaced by the name of
254the textfile. This command can be set via a resource:
255
256 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
257
258And the default is likely not useful to anybody but the few people around
259here :)
260
261The name of the textfile is the hex encoded md5 sum of the selection, so
262the same content should lead to the same filename.
263
264After a successful upload the selection will be replaced by the text given
265in the C<selection-pastebin-url> resource (again, the % is the placeholder
266for the filename):
267
268 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
153 269
154=back 270=back
155 271
156=head1 API DOCUMENTATION 272=head1 API DOCUMENTATION
157 273
230called whenever the relevant event happens. 346called whenever the relevant event happens.
231 347
232The first argument passed to them is an extension oject as described in 348The first argument passed to them is an extension oject as described in
233the in the C<Extension Objects> section. 349the in the C<Extension Objects> section.
234 350
235B<All> of these hooks must return a boolean value. If it is true, then the 351B<All> of these hooks must return a boolean value. If any of the called
236event counts as being I<consumed>, and the invocation of other hooks is 352hooks returns true, then the event counts as being I<consumed>, and the
237skipped, and the relevant action might not be carried out by the C++ code. 353relevant action might not be carried out by the C++ code.
238 354
239I<< When in doubt, return a false value (preferably C<()>). >> 355I<< When in doubt, return a false value (preferably C<()>). >>
240 356
241=over 4 357=over 4
242 358
243=item on_init $term 359=item on_init $term
244 360
245Called after a new terminal object has been initialized, but before 361Called after a new terminal object has been initialized, but before
246windows are created or the command gets run. Most methods are unsafe to 362windows are created or the command gets run. Most methods are unsafe to
247call or deliver senseless data, as terminal size and other characteristics 363call or deliver senseless data, as terminal size and other characteristics
248have not yet been determined. You can safely query and change resources, 364have not yet been determined. You can safely query and change resources
249though. 365and options, though. For many purposes the C<on_start> hook is a better
366place.
367
368=item on_start $term
369
370Called at the very end of initialisation of a new terminal, just before
371trying to map (display) the toplevel and returning to the mainloop.
372
373=item on_destroy $term
374
375Called whenever something tries to destroy terminal, before doing anything
376yet. If this hook returns true, then destruction is skipped, but this is
377rarely a good idea.
250 378
251=item on_reset $term 379=item on_reset $term
252 380
253Called after the screen is "reset" for any reason, such as resizing or 381Called after the screen is "reset" for any reason, such as resizing or
254control sequences. Here is where you can react on changes to size-related 382control sequences. Here is where you can react on changes to size-related
255variables. 383variables.
256 384
257=item on_start $term 385=item on_child_start $term, $pid
258 386
259Called at the very end of initialisation of a new terminal, just before 387Called just after the child process has been C<fork>ed.
260returning to the mainloop. 388
389=item on_child_exit $term, $status
390
391Called just after the child process has exited. C<$status> is the status
392from C<waitpid>.
261 393
262=item on_sel_make $term, $eventtime 394=item on_sel_make $term, $eventtime
263 395
264Called whenever a selection has been made by the user, but before the 396Called whenever a selection has been made by the user, but before the
265selection text is copied, so changes to the beginning, end or type of the 397selection text is copied, so changes to the beginning, end or type of the
358 490
359Called whenever the user presses a key combination that has a 491Called whenever the user presses a key combination that has a
360C<perl:string> action bound to it (see description of the B<keysym> 492C<perl:string> action bound to it (see description of the B<keysym>
361resource in the @@RXVT_NAME@@(1) manpage). 493resource in the @@RXVT_NAME@@(1) manpage).
362 494
495=item on_x_event $term, $event
496
497Called on every X event received on the vt window (and possibly other
498windows). Should only be used as a last resort. Most event structure
499members are not passed.
500
363=item on_focus_in $term 501=item on_focus_in $term
364 502
365Called whenever the window gets the keyboard focus, before rxvt-unicode 503Called whenever the window gets the keyboard focus, before rxvt-unicode
366does focus in processing. 504does focus in processing.
367 505
368=item on_focus_out $term 506=item on_focus_out $term
369 507
370Called wheneever the window loses keyboard focus, before rxvt-unicode does 508Called wheneever the window loses keyboard focus, before rxvt-unicode does
371focus out processing. 509focus out processing.
372 510
511=item on_configure_notify $term, $event
512
513=item on_property_notify $term, $event
514
373=item on_key_press $term, $event, $keysym, $octets 515=item on_key_press $term, $event, $keysym, $octets
374 516
375=item on_key_release $term, $event, $keysym 517=item on_key_release $term, $event, $keysym
376 518
377=item on_button_press $term, $event 519=item on_button_press $term, $event
386 528
387Called whenever the corresponding X event is received for the terminal If 529Called whenever the corresponding X event is received for the terminal If
388the hook returns true, then the even will be ignored by rxvt-unicode. 530the hook returns true, then the even will be ignored by rxvt-unicode.
389 531
390The event is a hash with most values as named by Xlib (see the XEvent 532The event is a hash with most values as named by Xlib (see the XEvent
391manpage), with the additional members C<row> and C<col>, which are the row 533manpage), with the additional members C<row> and C<col>, which are the
392and column under the mouse cursor. 534(real, not screen-based) row and column under the mouse cursor.
393 535
394C<on_key_press> additionally receives the string rxvt-unicode would 536C<on_key_press> additionally receives the string rxvt-unicode would
395output, if any, in locale-specific encoding. 537output, if any, in locale-specific encoding.
396 538
397subwindow. 539subwindow.
540
541=item on_client_message $term, $event
542
543=item on_wm_protocols $term, $event
544
545=item on_wm_delete_window $term, $event
546
547Called when various types of ClientMessage events are received (all with
548format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
398 549
399=back 550=back
400 551
401=cut 552=cut
402 553
408use Scalar::Util (); 559use Scalar::Util ();
409use List::Util (); 560use List::Util ();
410 561
411our $VERSION = 1; 562our $VERSION = 1;
412our $TERM; 563our $TERM;
564our @TERM_INIT;
565our @TERM_EXT;
413our @HOOKNAME; 566our @HOOKNAME;
414our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 567our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
415our %OPTION; 568our %OPTION;
416 569
417our $LIBDIR; 570our $LIBDIR;
418our $RESNAME; 571our $RESNAME;
419our $RESCLASS; 572our $RESCLASS;
420our $RXVTNAME; 573our $RXVTNAME;
421 574
575our $NOCHAR = chr 0xffff;
576
422=head2 Variables in the C<urxvt> Package 577=head2 Variables in the C<urxvt> Package
423 578
424=over 4 579=over 4
425 580
426=item $urxvt::LIBDIR 581=item $urxvt::LIBDIR
438 593
439=item $urxvt::TERM 594=item $urxvt::TERM
440 595
441The current terminal. This variable stores the current C<urxvt::term> 596The current terminal. This variable stores the current C<urxvt::term>
442object, whenever a callback/hook is executing. 597object, whenever a callback/hook is executing.
598
599=item @urxvt::TERM_INIT
600
601All coderefs in this array will be called as methods of the next newly
602created C<urxvt::term> object (during the C<on_init> phase). The array
603gets cleared before the codereferences that were in it are being executed,
604so coderefs can push themselves onto it again if they so desire.
605
606This complements to the perl-eval commandline option, but gets executed
607first.
608
609=item @urxvt::TERM_EXT
610
611Works similar to C<@TERM_INIT>, but contains perl package/class names, which
612get registered as normal extensions after calling the hooks in C<@TERM_INIT>
613but before other extensions. Gets cleared just like C<@TERM_INIT>.
443 614
444=back 615=back
445 616
446=head2 Functions in the C<urxvt> Package 617=head2 Functions in the C<urxvt> Package
447 618
462Using this function has the advantage that its output ends up in the 633Using this function has the advantage that its output ends up in the
463correct place, e.g. on stderr of the connecting urxvtc client. 634correct place, e.g. on stderr of the connecting urxvtc client.
464 635
465Messages have a size limit of 1023 bytes currently. 636Messages have a size limit of 1023 bytes currently.
466 637
467=item $is_safe = urxvt::safe
468
469Returns true when it is safe to do potentially unsafe things, such as
470evaluating perl code specified by the user. This is true when urxvt was
471started setuid or setgid.
472
473=item $time = urxvt::NOW 638=item $time = urxvt::NOW
474 639
475Returns the "current time" (as per the event loop). 640Returns the "current time" (as per the event loop).
476 641
477=item urxvt::CurrentTime 642=item urxvt::CurrentTime
478 643
479=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 644=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
480Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 645Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
481Button4Mask, Button5Mask, AnyModifier 646Button4Mask, Button5Mask, AnyModifier
647
648=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
649ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
650PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
651Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
652KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
653ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
654FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
655
656=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
657EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
658GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
659UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
660ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
661CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
662SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
482 663
483Various constants for use in X calls and event processing. 664Various constants for use in X calls and event processing.
484 665
485=back 666=back
486 667
537=back 718=back
538 719
539=cut 720=cut
540 721
541BEGIN { 722BEGIN {
542 urxvt->bootstrap;
543
544 # overwrite perl's warn 723 # overwrite perl's warn
545 *CORE::GLOBAL::warn = sub { 724 *CORE::GLOBAL::warn = sub {
546 my $msg = join "", @_; 725 my $msg = join "", @_;
547 $msg .= "\n" 726 $msg .= "\n"
548 unless $msg =~ /\n$/; 727 unless $msg =~ /\n$/;
549 urxvt::warn ($msg); 728 urxvt::warn ($msg);
550 }; 729 };
551
552 # %ENV is the original startup environment
553 delete $ENV{IFS};
554 delete $ENV{CDPATH};
555 delete $ENV{BASH_ENV};
556 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
557} 730}
558 731
559my @hook_count; 732no warnings 'utf8';
733
560my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 734my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
561 735
562sub verbose { 736sub verbose {
563 my ($level, $msg) = @_; 737 my ($level, $msg) = @_;
564 warn "$msg\n" if $level <= $verbosity; 738 warn "$msg\n" if $level <= $verbosity;
565} 739}
566 740
567my $extension_pkg = "extension0000";
568my %extension_pkg; 741my %extension_pkg;
569 742
570# load a single script into its own package, once only 743# load a single script into its own package, once only
571sub extension_package($) { 744sub extension_package($) {
572 my ($path) = @_; 745 my ($path) = @_;
573 746
574 $extension_pkg{$path} ||= do { 747 $extension_pkg{$path} ||= do {
575 my $pkg = "urxvt::" . ($extension_pkg++); 748 $path =~ /([^\/\\]+)$/;
749 my $pkg = $1;
750 $pkg =~ s/[^[:word:]]/_/g;
751 $pkg = "urxvt::ext::$pkg";
576 752
577 verbose 3, "loading extension '$path' into package '$pkg'"; 753 verbose 3, "loading extension '$path' into package '$pkg'";
578 754
579 open my $fh, "<:raw", $path 755 open my $fh, "<:raw", $path
580 or die "$path: $!"; 756 or die "$path: $!";
581 757
582 my $source = untaint 758 my $source =
583 "package $pkg; use strict; use utf8;\n" 759 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
584 . "use base urxvt::term::extension::;\n"
585 . "#line 1 \"$path\"\n{\n" 760 . "#line 1 \"$path\"\n{\n"
586 . (do { local $/; <$fh> }) 761 . (do { local $/; <$fh> })
587 . "\n};\n1"; 762 . "\n};\n1";
588 763
589 eval $source 764 eval $source
603 if ($htype == 0) { # INIT 778 if ($htype == 0) { # INIT
604 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 779 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
605 780
606 my %ext_arg; 781 my %ext_arg;
607 782
783 {
784 my @init = @TERM_INIT;
785 @TERM_INIT = ();
786 $_->($TERM) for @init;
787 my @pkg = @TERM_EXT;
788 @TERM_EXT = ();
789 $TERM->register_package ($_) for @pkg;
790 }
791
608 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 792 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
609 if ($_ eq "default") { 793 if ($_ eq "default") {
610 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 794 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
611 } elsif (/^-(.*)$/) { 795 } elsif (/^-(.*)$/) {
612 delete $ext_arg{$1}; 796 delete $ext_arg{$1};
613 } elsif (/^([^<]+)<(.*)>$/) { 797 } elsif (/^([^<]+)<(.*)>$/) {
614 push @{ $ext_arg{$1} }, $2; 798 push @{ $ext_arg{$1} }, $2;
615 } else { 799 } else {
638 if $verbosity >= 10; 822 if $verbosity >= 10;
639 823
640 keys %$cb; 824 keys %$cb;
641 825
642 while (my ($pkg, $cb) = each %$cb) { 826 while (my ($pkg, $cb) = each %$cb) {
643 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 827 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
644 and last; 828 $retval ||= $retval_;
645 829
646 if ($@) { 830 if ($@) {
647 $TERM->ungrab; # better to lose the grab than the session 831 $TERM->ungrab; # better to lose the grab than the session
648 warn $@; 832 warn $@;
649 } 833 }
652 verbose 11, "$HOOKNAME[$htype] returning <$retval>" 836 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
653 if $verbosity >= 11; 837 if $verbosity >= 11;
654 } 838 }
655 839
656 if ($htype == 1) { # DESTROY 840 if ($htype == 1) { # DESTROY
657 if (my $hook = delete $TERM->{_hook}) {
658 for my $htype (0..$#$hook) {
659 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
660 or set_should_invoke $htype, 0;
661 }
662 }
663
664 # clear package objects 841 # clear package objects
665 %$_ = () for values %{ $TERM->{_pkg} }; 842 %$_ = () for values %{ $TERM->{_pkg} };
666 843
667 # clear package 844 # clear package
668 %$TERM = (); 845 %$TERM = ();
669 } 846 }
670 847
671 $retval 848 $retval
672}
673
674sub exec_async(@) {
675 my $pid = fork;
676
677 return
678 if !defined $pid or $pid;
679
680 %ENV = %{ $TERM->env };
681
682 exec @_;
683 _exit 255;
684} 849}
685 850
686# urxvt::term::extension 851# urxvt::term::extension
687 852
688package urxvt::term::extension; 853package urxvt::term::extension;
694 while (my ($name, $cb) = each %hook) { 859 while (my ($name, $cb) = each %hook) {
695 my $htype = $HOOKTYPE{uc $name}; 860 my $htype = $HOOKTYPE{uc $name};
696 defined $htype 861 defined $htype
697 or Carp::croak "unsupported hook type '$name'"; 862 or Carp::croak "unsupported hook type '$name'";
698 863
864 $self->set_should_invoke ($htype, +1)
699 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 865 unless exists $self->{term}{_hook}[$htype]{$pkg};
700 $hook_count[$htype]++
701 or urxvt::set_should_invoke $htype, 1;
702 }
703 866
704 $self->{term}{_hook}[$htype]{$pkg} = $cb; 867 $self->{term}{_hook}[$htype]{$pkg} = $cb;
705 } 868 }
706} 869}
707 870
712 for my $name (@hook) { 875 for my $name (@hook) {
713 my $htype = $HOOKTYPE{uc $name}; 876 my $htype = $HOOKTYPE{uc $name};
714 defined $htype 877 defined $htype
715 or Carp::croak "unsupported hook type '$name'"; 878 or Carp::croak "unsupported hook type '$name'";
716 879
880 $self->set_should_invoke ($htype, -1)
717 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 881 if delete $self->{term}{_hook}[$htype]{$pkg};
718 --$hook_count[$htype]
719 or urxvt::set_should_invoke $htype, 0;
720 }
721 } 882 }
722} 883}
723 884
724our $AUTOLOAD; 885our $AUTOLOAD;
725 886
831# find on_xxx subs in the package and register them 992# find on_xxx subs in the package and register them
832# as hooks 993# as hooks
833sub register_package { 994sub register_package {
834 my ($self, $pkg, $argv) = @_; 995 my ($self, $pkg, $argv) = @_;
835 996
997 no strict 'refs';
998
999 urxvt::verbose 6, "register package $pkg to $self";
1000
1001 @{"$pkg\::ISA"} = urxvt::term::extension::;
1002
836 my $proxy = bless { 1003 my $proxy = bless {
837 _pkg => $pkg, 1004 _pkg => $pkg,
838 argv => $argv, 1005 argv => $argv,
839 }, $pkg; 1006 }, $pkg;
840 Scalar::Util::weaken ($proxy->{term} = $self); 1007 Scalar::Util::weaken ($proxy->{term} = $self);
871 1038
872Destroy the terminal object (close the window, free resources 1039Destroy the terminal object (close the window, free resources
873etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1040etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
874watchers (timers, io watchers) are still active. 1041watchers (timers, io watchers) are still active.
875 1042
1043=item $term->exec_async ($cmd[, @args])
1044
1045Works like the combination of the C<fork>/C<exec> builtins, which executes
1046("starts") programs in the background. This function takes care of setting
1047the user environment before exec'ing the command (e.g. C<PATH>) and should
1048be preferred over explicit calls to C<exec> or C<system>.
1049
1050Returns the pid of the subprocess or C<undef> on error.
1051
1052=cut
1053
1054sub exec_async {
1055 my $self = shift;
1056
1057 my $pid = fork;
1058
1059 return $pid
1060 if !defined $pid or $pid;
1061
1062 %ENV = %{ $self->env };
1063
1064 exec @_;
1065 urxvt::_exit 255;
1066}
1067
876=item $isset = $term->option ($optval[, $set]) 1068=item $isset = $term->option ($optval[, $set])
877 1069
878Returns true if the option specified by C<$optval> is enabled, and 1070Returns true if the option specified by C<$optval> is enabled, and
879optionally change it. All option values are stored by name in the hash 1071optionally change it. All option values are stored by name in the hash
880C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. 1072C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
882Here is a a likely non-exhaustive list of option names, please see the 1074Here is a a likely non-exhaustive list of option names, please see the
883source file F</src/optinc.h> to see the actual list: 1075source file F</src/optinc.h> to see the actual list:
884 1076
885 borderLess console cursorBlink cursorUnderline hold iconic insecure 1077 borderLess console cursorBlink cursorUnderline hold iconic insecure
886 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1078 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
887 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1079 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
888 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1080 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
889 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1081 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
890 tripleclickwords utmpInhibit visualBell 1082 transparent tripleclickwords utmpInhibit visualBell
891 1083
892=item $value = $term->resource ($name[, $newval]) 1084=item $value = $term->resource ($name[, $newval])
893 1085
894Returns the current resource value associated with a given name and 1086Returns the current resource value associated with a given name and
895optionally sets a new value. Setting values is most useful in the C<init> 1087optionally sets a new value. Setting values is most useful in the C<init>
912 1104
913 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1105 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
914 borderLess color cursorBlink cursorUnderline cutchars delete_key 1106 borderLess color cursorBlink cursorUnderline cutchars delete_key
915 display_name embed ext_bwidth fade font geometry hold iconName 1107 display_name embed ext_bwidth fade font geometry hold iconName
916 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1108 imFont imLocale inputMethod insecure int_bwidth intensityStyles
917 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1109 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
918 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1110 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
919 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1111 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
920 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1112 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
921 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1113 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
922 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1114 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
923 shade term_name title transparent transparent_all tripleclickwords 1115 secondaryScreen secondaryScroll selectstyle shade term_name title
924 utmpInhibit visualBell 1116 transient_for transparent transparent_all tripleclickwords utmpInhibit
1117 visualBell
925 1118
926=cut 1119=cut
927 1120
928sub resource($$;$) { 1121sub resource($$;$) {
929 my ($self, $name) = (shift, shift); 1122 my ($self, $name) = (shift, shift);
1103 1296
1104Normally its not a good idea to use this function, as programs might be 1297Normally its not a good idea to use this function, as programs might be
1105confused by changes in cursor position or scrolling. Its useful inside a 1298confused by changes in cursor position or scrolling. Its useful inside a
1106C<on_add_lines> hook, though. 1299C<on_add_lines> hook, though.
1107 1300
1301=item $term->scr_change_screen ($screen)
1302
1303Switch to given screen - 0 primary, 1 secondary.
1304
1108=item $term->cmd_parse ($octets) 1305=item $term->cmd_parse ($octets)
1109 1306
1110Similar to C<scr_add_lines>, but the argument must be in the 1307Similar to C<scr_add_lines>, but the argument must be in the
1111locale-specific encoding of the terminal and can contain command sequences 1308locale-specific encoding of the terminal and can contain command sequences
1112(escape codes) that will be interpreted. 1309(escape codes) that will be interpreted.
1122Replaces the event mask of the pty watcher by the given event mask. Can 1319Replaces the event mask of the pty watcher by the given event mask. Can
1123be used to suppress input and output handling to the pty/tty. See the 1320be used to suppress input and output handling to the pty/tty. See the
1124description of C<< urxvt::timer->events >>. Make sure to always restore 1321description of C<< urxvt::timer->events >>. Make sure to always restore
1125the previous value. 1322the previous value.
1126 1323
1324=item $fd = $term->pty_fd
1325
1326Returns the master file descriptor for the pty in use, or C<-1> if no pty
1327is used.
1328
1127=item $windowid = $term->parent 1329=item $windowid = $term->parent
1128 1330
1129Return the window id of the toplevel window. 1331Return the window id of the toplevel window.
1130 1332
1131=item $windowid = $term->vt 1333=item $windowid = $term->vt
1132 1334
1133Return the window id of the terminal window. 1335Return the window id of the terminal window.
1134 1336
1337=item $term->vt_emask_add ($x_event_mask)
1338
1339Adds the specified events to the vt event mask. Useful e.g. when you want
1340to receive pointer events all the times:
1341
1342 $term->vt_emask_add (urxvt::PointerMotionMask);
1343
1135=item $window_width = $term->width 1344=item $window_width = $term->width
1136 1345
1137=item $window_height = $term->height 1346=item $window_height = $term->height
1138 1347
1139=item $font_width = $term->fwidth 1348=item $font_width = $term->fwidth
1152 1361
1153=item $max_scrollback = $term->saveLines 1362=item $max_scrollback = $term->saveLines
1154 1363
1155=item $nrow_plus_saveLines = $term->total_rows 1364=item $nrow_plus_saveLines = $term->total_rows
1156 1365
1157=item $lines_in_scrollback = $term->nsaved 1366=item $topmost_scrollback_row = $term->top_row
1158 1367
1159Return various integers describing terminal characteristics. 1368Return various integers describing terminal characteristics.
1160 1369
1161=item $x_display = $term->display_id 1370=item $x_display = $term->display_id
1162 1371
1188=item $modifiermask = $term->ModNumLockMask 1397=item $modifiermask = $term->ModNumLockMask
1189 1398
1190Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1399Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1191AltGr), the meta key (often Alt) and the num lock key, if applicable. 1400AltGr), the meta key (often Alt) and the num lock key, if applicable.
1192 1401
1402=item $screen = $term->current_screen
1403
1404Returns the currently displayed screen (0 primary, 1 secondary).
1405
1406=item $cursor_is_hidden = $term->hidden_cursor
1407
1408Returns wether the cursor is currently hidden or not.
1409
1193=item $view_start = $term->view_start ([$newvalue]) 1410=item $view_start = $term->view_start ([$newvalue])
1194 1411
1195Returns the negative row number of the topmost line. Minimum value is 1412Returns the row number of the topmost displayed line. Maximum value is
1196C<0>, which displays the normal terminal contents. Larger values scroll 1413C<0>, which displays the normal terminal contents. Lower values scroll
1197this many lines into the scrollback buffer. 1414this many lines into the scrollback buffer.
1198 1415
1199=item $term->want_refresh 1416=item $term->want_refresh
1200 1417
1201Requests a screen refresh. At the next opportunity, rxvt-unicode will 1418Requests a screen refresh. At the next opportunity, rxvt-unicode will
1216line, starting at column C<$start_col> (default C<0>), which is useful 1433line, starting at column C<$start_col> (default C<0>), which is useful
1217to replace only parts of a line. The font index in the rendition will 1434to replace only parts of a line. The font index in the rendition will
1218automatically be updated. 1435automatically be updated.
1219 1436
1220C<$text> is in a special encoding: tabs and wide characters that use more 1437C<$text> is in a special encoding: tabs and wide characters that use more
1221than one cell when displayed are padded with urxvt::NOCHAR characters 1438than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1222(C<chr 65535>). Characters with combining characters and other characters 1439characters. Characters with combining characters and other characters that
1223that do not fit into the normal tetx encoding will be replaced with 1440do not fit into the normal tetx encoding will be replaced with characters
1224characters in the private use area. 1441in the private use area.
1225 1442
1226You have to obey this encoding when changing text. The advantage is 1443You have to obey this encoding when changing text. The advantage is
1227that C<substr> and similar functions work on screen cells and not on 1444that C<substr> and similar functions work on screen cells and not on
1228characters. 1445characters.
1229 1446
1404 1621
1405Calls XUngrab for the most recent grab. Is called automatically on 1622Calls XUngrab for the most recent grab. Is called automatically on
1406evaluation errors, as it is better to lose the grab in the error case as 1623evaluation errors, as it is better to lose the grab in the error case as
1407the session. 1624the session.
1408 1625
1626=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1627
1628=item $atom_name = $term->XGetAtomName ($atom)
1629
1630=item @atoms = $term->XListProperties ($window)
1631
1632=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1633
1634=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1635
1636=item $term->XDeleteProperty ($window, $property)
1637
1638=item $window = $term->DefaultRootWindow
1639
1640=item $term->XReparentWindow ($window, $parent, [$x, $y])
1641
1642=item $term->XMapWindow ($window)
1643
1644=item $term->XUnmapWindow ($window)
1645
1646=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1647
1648=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1649
1650=item $term->XChangeInput ($window, $add_events[, $del_events])
1651
1652Various X or X-related functions. The C<$term> object only serves as
1653the source of the display, otherwise those functions map more-or-less
1654directory onto the X functions of the same name.
1655
1409=back 1656=back
1410 1657
1411=cut 1658=cut
1412 1659
1413package urxvt::popup; 1660package urxvt::popup;
1514 my $env = $self->{term}->env; 1761 my $env = $self->{term}->env;
1515 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. 1762 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1516 delete $env->{LC_ALL}; 1763 delete $env->{LC_ALL};
1517 $env->{LC_CTYPE} = $self->{term}->locale; 1764 $env->{LC_CTYPE} = $self->{term}->locale;
1518 1765
1519 urxvt::term->new ($env, $self->{term}->resource ("name"), 1766 urxvt::term->new ($env, "popup",
1520 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1767 "--perl-lib" => "", "--perl-ext-common" => "",
1768 "-pty-fd" => -1, "-sl" => 0,
1769 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1521 "--transient-for" => $self->{term}->parent, 1770 "--transient-for" => $self->{term}->parent,
1522 "-display" => $self->{term}->display_id, 1771 "-display" => $self->{term}->display_id,
1523 "-pe" => "urxvt-popup") 1772 "-pe" => "urxvt-popup")
1524 or die "unable to create popup window\n"; 1773 or die "unable to create popup window\n";
1525} 1774}
1530 delete $self->{term}{_destroy}{$self}; 1779 delete $self->{term}{_destroy}{$self};
1531 $self->{term}->ungrab; 1780 $self->{term}->ungrab;
1532} 1781}
1533 1782
1534=back 1783=back
1784
1785=cut
1786
1787package urxvt::watcher;
1788
1789@urxvt::timer::ISA = __PACKAGE__;
1790@urxvt::iow::ISA = __PACKAGE__;
1791@urxvt::pw::ISA = __PACKAGE__;
1792@urxvt::iw::ISA = __PACKAGE__;
1535 1793
1536=head2 The C<urxvt::timer> Class 1794=head2 The C<urxvt::timer> Class
1537 1795
1538This class implements timer watchers/events. Time is represented as a 1796This class implements timer watchers/events. Time is represented as a
1539fractional number of seconds since the epoch. Example: 1797fractional number of seconds since the epoch. Example:
1577Start the timer. 1835Start the timer.
1578 1836
1579=item $timer = $timer->start ($tstamp) 1837=item $timer = $timer->start ($tstamp)
1580 1838
1581Set the event trigger time to C<$tstamp> and start the timer. 1839Set the event trigger time to C<$tstamp> and start the timer.
1840
1841=item $timer = $timer->after ($delay)
1842
1843Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1582 1844
1583=item $timer = $timer->stop 1845=item $timer = $timer->stop
1584 1846
1585Stop the timer. 1847Stop the timer.
1586 1848
1633 1895
1634Stop watching for events on the given filehandle. 1896Stop watching for events on the given filehandle.
1635 1897
1636=back 1898=back
1637 1899
1900=head2 The C<urxvt::iw> Class
1901
1902This class implements idle watchers, that get called automatically when
1903the process is idle. They should return as fast as possible, after doing
1904some useful work.
1905
1906=over 4
1907
1908=item $iw = new urxvt::iw
1909
1910Create a new idle watcher object in stopped state.
1911
1912=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1913
1914Set the callback to be called when the watcher triggers.
1915
1916=item $timer = $timer->start
1917
1918Start the watcher.
1919
1920=item $timer = $timer->stop
1921
1922Stop the watcher.
1923
1924=back
1925
1926=head2 The C<urxvt::pw> Class
1927
1928This class implements process watchers. They create an event whenever a
1929process exits, after which they stop automatically.
1930
1931 my $pid = fork;
1932 ...
1933 $term->{pw} = urxvt::pw
1934 ->new
1935 ->start ($pid)
1936 ->cb (sub {
1937 my ($pw, $exit_status) = @_;
1938 ...
1939 });
1940
1941=over 4
1942
1943=item $pw = new urxvt::pw
1944
1945Create a new process watcher in stopped state.
1946
1947=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1948
1949Set the callback to be called when the timer triggers.
1950
1951=item $pw = $timer->start ($pid)
1952
1953Tells the wqtcher to start watching for process C<$pid>.
1954
1955=item $pw = $pw->stop
1956
1957Stop the watcher.
1958
1959=back
1960
1638=head1 ENVIRONMENT 1961=head1 ENVIRONMENT
1639 1962
1640=head2 URXVT_PERL_VERBOSITY 1963=head2 URXVT_PERL_VERBOSITY
1641 1964
1642This variable controls the verbosity level of the perl extension. Higher 1965This variable controls the verbosity level of the perl extension. Higher

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