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Revision 1.91 by root, Fri Jan 13 01:09:37 2006 UTC vs.
Revision 1.127 by root, Wed Jan 25 00:42:21 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
120 175
121For example, the following will transform selections of the form 176For example, the following will transform selections of the form
122C<filename:number>, often seen in compiler messages, into C<vi +$filename 177C<filename:number>, often seen in compiler messages, into C<vi +$filename
123$word>: 178$word>:
124 179
125 URxvt.selection-autotransform.0: s/^(\\S+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/ 180 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
126 181
127And this example matches the same,but replaces it with vi-commands you can 182And this example matches the same,but replaces it with vi-commands you can
128paste directly into your (vi :) editor: 183paste directly into your (vi :) editor:
129 184
130 URxvt.selection-autotransform.0: s/^(S+):(d+):?$/\\x1b:e \\Q$1\\E\\x0d:$2\\x0d/ 185 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
131 186
132Of course, this can be modified to suit your needs and your editor :) 187Of course, this can be modified to suit your needs and your editor :)
133 188
134To expand the example above to typical perl error messages ("XXX at 189To expand the example above to typical perl error messages ("XXX at
135FILENAME line YYY."), you need a slightly more elaborate solution: 190FILENAME line YYY."), you need a slightly more elaborate solution:
136 191
137 URxvt.selection.pattern-0: ( at .*? line \\d+\\.) 192 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
138 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)\\.$/\x1b:e \\Q$1\E\\x0d:$2\\x0d/ 193 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
139 194
140The first line tells the selection code to treat the unchanging part of 195The first line tells the selection code to treat the unchanging part of
141every error message as a selection pattern, and the second line transforms 196every error message as a selection pattern, and the second line transforms
142the message into vi commands to load the file. 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.
143 209
144=item mark-urls 210=item mark-urls
145 211
146Uses 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
147make them clickable. When middle-clicked, the program specified in the 213make them clickable. When middle-clicked, the program specified in the
148resource C<urlLauncher> (default C<x-www-browser>) will be started with 214resource C<urlLauncher> (default C<x-www-browser>) will be started with
149the URL as first argument. 215the URL as first argument.
150 216
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
151=item block-graphics-to-ascii 225=item block-graphics-to-ascii
152 226
153A 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,
154by replacing all line-drawing characters (U+2500 .. U+259F) by a 228by replacing all line-drawing characters (U+2500 .. U+259F) by a
155similar-looking ascii character. 229similar-looking ascii character.
161=item example-refresh-hooks 235=item example-refresh-hooks
162 236
163Displays 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
164window. Illustrates overwriting the refresh callbacks to create your own 238window. Illustrates overwriting the refresh callbacks to create your own
165overlays 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/%
166 269
167=back 270=back
168 271
169=head1 API DOCUMENTATION 272=head1 API DOCUMENTATION
170 273
243called whenever the relevant event happens. 346called whenever the relevant event happens.
244 347
245The 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
246the in the C<Extension Objects> section. 349the in the C<Extension Objects> section.
247 350
248B<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
249event 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
250skipped, and the relevant action might not be carried out by the C++ code. 353relevant action might not be carried out by the C++ code.
251 354
252I<< When in doubt, return a false value (preferably C<()>). >> 355I<< When in doubt, return a false value (preferably C<()>). >>
253 356
254=over 4 357=over 4
255 358
256=item on_init $term 359=item on_init $term
257 360
258Called after a new terminal object has been initialized, but before 361Called after a new terminal object has been initialized, but before
259windows 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
260call or deliver senseless data, as terminal size and other characteristics 363call or deliver senseless data, as terminal size and other characteristics
261have not yet been determined. You can safely query and change resources, 364have not yet been determined. You can safely query and change resources
262though. 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, when the terminal is
376still fully functional (not for long, though).
263 377
264=item on_reset $term 378=item on_reset $term
265 379
266Called after the screen is "reset" for any reason, such as resizing or 380Called after the screen is "reset" for any reason, such as resizing or
267control sequences. Here is where you can react on changes to size-related 381control sequences. Here is where you can react on changes to size-related
268variables. 382variables.
269 383
270=item on_start $term 384=item on_child_start $term, $pid
271 385
272Called at the very end of initialisation of a new terminal, just before 386Called just after the child process has been C<fork>ed.
273returning to the mainloop. 387
388=item on_child_exit $term, $status
389
390Called just after the child process has exited. C<$status> is the status
391from C<waitpid>.
274 392
275=item on_sel_make $term, $eventtime 393=item on_sel_make $term, $eventtime
276 394
277Called whenever a selection has been made by the user, but before the 395Called whenever a selection has been made by the user, but before the
278selection text is copied, so changes to the beginning, end or type of the 396selection text is copied, so changes to the beginning, end or type of the
371 489
372Called whenever the user presses a key combination that has a 490Called whenever the user presses a key combination that has a
373C<perl:string> action bound to it (see description of the B<keysym> 491C<perl:string> action bound to it (see description of the B<keysym>
374resource in the @@RXVT_NAME@@(1) manpage). 492resource in the @@RXVT_NAME@@(1) manpage).
375 493
494=item on_x_event $term, $event
495
496Called on every X event received on the vt window (and possibly other
497windows). Should only be used as a last resort. Most event structure
498members are not passed.
499
376=item on_focus_in $term 500=item on_focus_in $term
377 501
378Called whenever the window gets the keyboard focus, before rxvt-unicode 502Called whenever the window gets the keyboard focus, before rxvt-unicode
379does focus in processing. 503does focus in processing.
380 504
381=item on_focus_out $term 505=item on_focus_out $term
382 506
383Called wheneever the window loses keyboard focus, before rxvt-unicode does 507Called wheneever the window loses keyboard focus, before rxvt-unicode does
384focus out processing. 508focus out processing.
385 509
510=item on_configure_notify $term, $event
511
512=item on_property_notify $term, $event
513
386=item on_key_press $term, $event, $keysym, $octets 514=item on_key_press $term, $event, $keysym, $octets
387 515
388=item on_key_release $term, $event, $keysym 516=item on_key_release $term, $event, $keysym
389 517
390=item on_button_press $term, $event 518=item on_button_press $term, $event
399 527
400Called whenever the corresponding X event is received for the terminal If 528Called whenever the corresponding X event is received for the terminal If
401the hook returns true, then the even will be ignored by rxvt-unicode. 529the hook returns true, then the even will be ignored by rxvt-unicode.
402 530
403The event is a hash with most values as named by Xlib (see the XEvent 531The event is a hash with most values as named by Xlib (see the XEvent
404manpage), with the additional members C<row> and C<col>, which are the row 532manpage), with the additional members C<row> and C<col>, which are the
405and column under the mouse cursor. 533(real, not screen-based) row and column under the mouse cursor.
406 534
407C<on_key_press> additionally receives the string rxvt-unicode would 535C<on_key_press> additionally receives the string rxvt-unicode would
408output, if any, in locale-specific encoding. 536output, if any, in locale-specific encoding.
409 537
410subwindow. 538subwindow.
539
540=item on_client_message $term, $event
541
542=item on_wm_protocols $term, $event
543
544=item on_wm_delete_window $term, $event
545
546Called when various types of ClientMessage events are received (all with
547format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
411 548
412=back 549=back
413 550
414=cut 551=cut
415 552
421use Scalar::Util (); 558use Scalar::Util ();
422use List::Util (); 559use List::Util ();
423 560
424our $VERSION = 1; 561our $VERSION = 1;
425our $TERM; 562our $TERM;
563our @TERM_INIT;
564our @TERM_EXT;
426our @HOOKNAME; 565our @HOOKNAME;
427our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 566our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
428our %OPTION; 567our %OPTION;
429 568
430our $LIBDIR; 569our $LIBDIR;
431our $RESNAME; 570our $RESNAME;
432our $RESCLASS; 571our $RESCLASS;
433our $RXVTNAME; 572our $RXVTNAME;
434 573
574our $NOCHAR = chr 0xffff;
575
435=head2 Variables in the C<urxvt> Package 576=head2 Variables in the C<urxvt> Package
436 577
437=over 4 578=over 4
438 579
439=item $urxvt::LIBDIR 580=item $urxvt::LIBDIR
451 592
452=item $urxvt::TERM 593=item $urxvt::TERM
453 594
454The current terminal. This variable stores the current C<urxvt::term> 595The current terminal. This variable stores the current C<urxvt::term>
455object, whenever a callback/hook is executing. 596object, whenever a callback/hook is executing.
597
598=item @urxvt::TERM_INIT
599
600All coderefs in this array will be called as methods of the next newly
601created C<urxvt::term> object (during the C<on_init> phase). The array
602gets cleared before the codereferences that were in it are being executed,
603so coderefs can push themselves onto it again if they so desire.
604
605This complements to the perl-eval commandline option, but gets executed
606first.
607
608=item @urxvt::TERM_EXT
609
610Works similar to C<@TERM_INIT>, but contains perl package/class names, which
611get registered as normal extensions after calling the hooks in C<@TERM_INIT>
612but before other extensions. Gets cleared just like C<@TERM_INIT>.
456 613
457=back 614=back
458 615
459=head2 Functions in the C<urxvt> Package 616=head2 Functions in the C<urxvt> Package
460 617
475Using this function has the advantage that its output ends up in the 632Using this function has the advantage that its output ends up in the
476correct place, e.g. on stderr of the connecting urxvtc client. 633correct place, e.g. on stderr of the connecting urxvtc client.
477 634
478Messages have a size limit of 1023 bytes currently. 635Messages have a size limit of 1023 bytes currently.
479 636
480=item $is_safe = urxvt::safe
481
482Returns true when it is safe to do potentially unsafe things, such as
483evaluating perl code specified by the user. This is true when urxvt was
484started setuid or setgid.
485
486=item $time = urxvt::NOW 637=item $time = urxvt::NOW
487 638
488Returns the "current time" (as per the event loop). 639Returns the "current time" (as per the event loop).
489 640
490=item urxvt::CurrentTime 641=item urxvt::CurrentTime
491 642
492=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 643=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
493Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 644Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
494Button4Mask, Button5Mask, AnyModifier 645Button4Mask, Button5Mask, AnyModifier
646
647=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
648ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
649PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
650Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
651KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
652ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
653FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
654
655=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
656EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
657GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
658UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
659ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
660CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
661SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
495 662
496Various constants for use in X calls and event processing. 663Various constants for use in X calls and event processing.
497 664
498=back 665=back
499 666
550=back 717=back
551 718
552=cut 719=cut
553 720
554BEGIN { 721BEGIN {
555 urxvt->bootstrap;
556
557 # overwrite perl's warn 722 # overwrite perl's warn
558 *CORE::GLOBAL::warn = sub { 723 *CORE::GLOBAL::warn = sub {
559 my $msg = join "", @_; 724 my $msg = join "", @_;
560 $msg .= "\n" 725 $msg .= "\n"
561 unless $msg =~ /\n$/; 726 unless $msg =~ /\n$/;
562 urxvt::warn ($msg); 727 urxvt::warn ($msg);
563 }; 728 };
564
565 # %ENV is the original startup environment
566 delete $ENV{IFS};
567 delete $ENV{CDPATH};
568 delete $ENV{BASH_ENV};
569 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
570} 729}
571 730
572my @hook_count; 731no warnings 'utf8';
732
573my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 733my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
574 734
575sub verbose { 735sub verbose {
576 my ($level, $msg) = @_; 736 my ($level, $msg) = @_;
577 warn "$msg\n" if $level <= $verbosity; 737 warn "$msg\n" if $level <= $verbosity;
578} 738}
579 739
580my $extension_pkg = "extension0000";
581my %extension_pkg; 740my %extension_pkg;
582 741
583# load a single script into its own package, once only 742# load a single script into its own package, once only
584sub extension_package($) { 743sub extension_package($) {
585 my ($path) = @_; 744 my ($path) = @_;
586 745
587 $extension_pkg{$path} ||= do { 746 $extension_pkg{$path} ||= do {
588 my $pkg = "urxvt::" . ($extension_pkg++); 747 $path =~ /([^\/\\]+)$/;
748 my $pkg = $1;
749 $pkg =~ s/[^[:word:]]/_/g;
750 $pkg = "urxvt::ext::$pkg";
589 751
590 verbose 3, "loading extension '$path' into package '$pkg'"; 752 verbose 3, "loading extension '$path' into package '$pkg'";
591 753
592 open my $fh, "<:raw", $path 754 open my $fh, "<:raw", $path
593 or die "$path: $!"; 755 or die "$path: $!";
594 756
595 my $source = untaint 757 my $source =
596 "package $pkg; use strict; use utf8;\n" 758 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
597 . "use base urxvt::term::extension::;\n"
598 . "#line 1 \"$path\"\n{\n" 759 . "#line 1 \"$path\"\n{\n"
599 . (do { local $/; <$fh> }) 760 . (do { local $/; <$fh> })
600 . "\n};\n1"; 761 . "\n};\n1";
601 762
602 eval $source 763 eval $source
616 if ($htype == 0) { # INIT 777 if ($htype == 0) { # INIT
617 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 778 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
618 779
619 my %ext_arg; 780 my %ext_arg;
620 781
782 {
783 my @init = @TERM_INIT;
784 @TERM_INIT = ();
785 $_->($TERM) for @init;
786 my @pkg = @TERM_EXT;
787 @TERM_EXT = ();
788 $TERM->register_package ($_) for @pkg;
789 }
790
621 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 791 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
622 if ($_ eq "default") { 792 if ($_ eq "default") {
623 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 793 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
624 } elsif (/^-(.*)$/) { 794 } elsif (/^-(.*)$/) {
625 delete $ext_arg{$1}; 795 delete $ext_arg{$1};
626 } elsif (/^([^<]+)<(.*)>$/) { 796 } elsif (/^([^<]+)<(.*)>$/) {
627 push @{ $ext_arg{$1} }, $2; 797 push @{ $ext_arg{$1} }, $2;
628 } else { 798 } else {
651 if $verbosity >= 10; 821 if $verbosity >= 10;
652 822
653 keys %$cb; 823 keys %$cb;
654 824
655 while (my ($pkg, $cb) = each %$cb) { 825 while (my ($pkg, $cb) = each %$cb) {
656 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 826 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
657 and last; 827 $retval ||= $retval_;
658 828
659 if ($@) { 829 if ($@) {
660 $TERM->ungrab; # better to lose the grab than the session 830 $TERM->ungrab; # better to lose the grab than the session
661 warn $@; 831 warn $@;
662 } 832 }
665 verbose 11, "$HOOKNAME[$htype] returning <$retval>" 835 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
666 if $verbosity >= 11; 836 if $verbosity >= 11;
667 } 837 }
668 838
669 if ($htype == 1) { # DESTROY 839 if ($htype == 1) { # DESTROY
670 if (my $hook = delete $TERM->{_hook}) {
671 for my $htype (0..$#$hook) {
672 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
673 or set_should_invoke $htype, 0;
674 }
675 }
676
677 # clear package objects 840 # clear package objects
678 %$_ = () for values %{ $TERM->{_pkg} }; 841 %$_ = () for values %{ $TERM->{_pkg} };
679 842
680 # clear package 843 # clear package
681 %$TERM = (); 844 %$TERM = ();
682 } 845 }
683 846
684 $retval 847 $retval
685}
686
687sub exec_async(@) {
688 my $pid = fork;
689
690 return
691 if !defined $pid or $pid;
692
693 %ENV = %{ $TERM->env };
694
695 exec @_;
696 _exit 255;
697} 848}
698 849
699# urxvt::term::extension 850# urxvt::term::extension
700 851
701package urxvt::term::extension; 852package urxvt::term::extension;
707 while (my ($name, $cb) = each %hook) { 858 while (my ($name, $cb) = each %hook) {
708 my $htype = $HOOKTYPE{uc $name}; 859 my $htype = $HOOKTYPE{uc $name};
709 defined $htype 860 defined $htype
710 or Carp::croak "unsupported hook type '$name'"; 861 or Carp::croak "unsupported hook type '$name'";
711 862
863 $self->set_should_invoke ($htype, +1)
712 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 864 unless exists $self->{term}{_hook}[$htype]{$pkg};
713 $hook_count[$htype]++
714 or urxvt::set_should_invoke $htype, 1;
715 }
716 865
717 $self->{term}{_hook}[$htype]{$pkg} = $cb; 866 $self->{term}{_hook}[$htype]{$pkg} = $cb;
718 } 867 }
719} 868}
720 869
725 for my $name (@hook) { 874 for my $name (@hook) {
726 my $htype = $HOOKTYPE{uc $name}; 875 my $htype = $HOOKTYPE{uc $name};
727 defined $htype 876 defined $htype
728 or Carp::croak "unsupported hook type '$name'"; 877 or Carp::croak "unsupported hook type '$name'";
729 878
879 $self->set_should_invoke ($htype, -1)
730 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 880 if delete $self->{term}{_hook}[$htype]{$pkg};
731 --$hook_count[$htype]
732 or urxvt::set_should_invoke $htype, 0;
733 }
734 } 881 }
735} 882}
736 883
737our $AUTOLOAD; 884our $AUTOLOAD;
738 885
844# find on_xxx subs in the package and register them 991# find on_xxx subs in the package and register them
845# as hooks 992# as hooks
846sub register_package { 993sub register_package {
847 my ($self, $pkg, $argv) = @_; 994 my ($self, $pkg, $argv) = @_;
848 995
996 no strict 'refs';
997
998 urxvt::verbose 6, "register package $pkg to $self";
999
1000 @{"$pkg\::ISA"} = urxvt::term::extension::;
1001
849 my $proxy = bless { 1002 my $proxy = bless {
850 _pkg => $pkg, 1003 _pkg => $pkg,
851 argv => $argv, 1004 argv => $argv,
852 }, $pkg; 1005 }, $pkg;
853 Scalar::Util::weaken ($proxy->{term} = $self); 1006 Scalar::Util::weaken ($proxy->{term} = $self);
884 1037
885Destroy the terminal object (close the window, free resources 1038Destroy the terminal object (close the window, free resources
886etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1039etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
887watchers (timers, io watchers) are still active. 1040watchers (timers, io watchers) are still active.
888 1041
1042=item $term->exec_async ($cmd[, @args])
1043
1044Works like the combination of the C<fork>/C<exec> builtins, which executes
1045("starts") programs in the background. This function takes care of setting
1046the user environment before exec'ing the command (e.g. C<PATH>) and should
1047be preferred over explicit calls to C<exec> or C<system>.
1048
1049Returns the pid of the subprocess or C<undef> on error.
1050
1051=cut
1052
1053sub exec_async {
1054 my $self = shift;
1055
1056 my $pid = fork;
1057
1058 return $pid
1059 if !defined $pid or $pid;
1060
1061 %ENV = %{ $self->env };
1062
1063 exec @_;
1064 urxvt::_exit 255;
1065}
1066
889=item $isset = $term->option ($optval[, $set]) 1067=item $isset = $term->option ($optval[, $set])
890 1068
891Returns true if the option specified by C<$optval> is enabled, and 1069Returns true if the option specified by C<$optval> is enabled, and
892optionally change it. All option values are stored by name in the hash 1070optionally change it. All option values are stored by name in the hash
893C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. 1071C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
895Here is a a likely non-exhaustive list of option names, please see the 1073Here is a a likely non-exhaustive list of option names, please see the
896source file F</src/optinc.h> to see the actual list: 1074source file F</src/optinc.h> to see the actual list:
897 1075
898 borderLess console cursorBlink cursorUnderline hold iconic insecure 1076 borderLess console cursorBlink cursorUnderline hold iconic insecure
899 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1077 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
900 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1078 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
901 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1079 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
902 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1080 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
903 tripleclickwords utmpInhibit visualBell 1081 transparent tripleclickwords utmpInhibit visualBell
904 1082
905=item $value = $term->resource ($name[, $newval]) 1083=item $value = $term->resource ($name[, $newval])
906 1084
907Returns the current resource value associated with a given name and 1085Returns the current resource value associated with a given name and
908optionally sets a new value. Setting values is most useful in the C<init> 1086optionally sets a new value. Setting values is most useful in the C<init>
925 1103
926 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1104 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
927 borderLess color cursorBlink cursorUnderline cutchars delete_key 1105 borderLess color cursorBlink cursorUnderline cutchars delete_key
928 display_name embed ext_bwidth fade font geometry hold iconName 1106 display_name embed ext_bwidth fade font geometry hold iconName
929 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1107 imFont imLocale inputMethod insecure int_bwidth intensityStyles
930 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1108 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
931 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1109 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
932 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1110 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
933 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1111 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
934 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1112 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
935 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1113 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
936 shade term_name title transparent transparent_all tripleclickwords 1114 secondaryScreen secondaryScroll selectstyle shade term_name title
937 utmpInhibit visualBell 1115 transient_for transparent transparent_all tripleclickwords utmpInhibit
1116 visualBell
938 1117
939=cut 1118=cut
940 1119
941sub resource($$;$) { 1120sub resource($$;$) {
942 my ($self, $name) = (shift, shift); 1121 my ($self, $name) = (shift, shift);
1116 1295
1117Normally its not a good idea to use this function, as programs might be 1296Normally its not a good idea to use this function, as programs might be
1118confused by changes in cursor position or scrolling. Its useful inside a 1297confused by changes in cursor position or scrolling. Its useful inside a
1119C<on_add_lines> hook, though. 1298C<on_add_lines> hook, though.
1120 1299
1300=item $term->scr_change_screen ($screen)
1301
1302Switch to given screen - 0 primary, 1 secondary.
1303
1121=item $term->cmd_parse ($octets) 1304=item $term->cmd_parse ($octets)
1122 1305
1123Similar to C<scr_add_lines>, but the argument must be in the 1306Similar to C<scr_add_lines>, but the argument must be in the
1124locale-specific encoding of the terminal and can contain command sequences 1307locale-specific encoding of the terminal and can contain command sequences
1125(escape codes) that will be interpreted. 1308(escape codes) that will be interpreted.
1135Replaces the event mask of the pty watcher by the given event mask. Can 1318Replaces the event mask of the pty watcher by the given event mask. Can
1136be used to suppress input and output handling to the pty/tty. See the 1319be used to suppress input and output handling to the pty/tty. See the
1137description of C<< urxvt::timer->events >>. Make sure to always restore 1320description of C<< urxvt::timer->events >>. Make sure to always restore
1138the previous value. 1321the previous value.
1139 1322
1323=item $fd = $term->pty_fd
1324
1325Returns the master file descriptor for the pty in use, or C<-1> if no pty
1326is used.
1327
1140=item $windowid = $term->parent 1328=item $windowid = $term->parent
1141 1329
1142Return the window id of the toplevel window. 1330Return the window id of the toplevel window.
1143 1331
1144=item $windowid = $term->vt 1332=item $windowid = $term->vt
1145 1333
1146Return the window id of the terminal window. 1334Return the window id of the terminal window.
1147 1335
1336=item $term->vt_emask_add ($x_event_mask)
1337
1338Adds the specified events to the vt event mask. Useful e.g. when you want
1339to receive pointer events all the times:
1340
1341 $term->vt_emask_add (urxvt::PointerMotionMask);
1342
1148=item $window_width = $term->width 1343=item $window_width = $term->width
1149 1344
1150=item $window_height = $term->height 1345=item $window_height = $term->height
1151 1346
1152=item $font_width = $term->fwidth 1347=item $font_width = $term->fwidth
1165 1360
1166=item $max_scrollback = $term->saveLines 1361=item $max_scrollback = $term->saveLines
1167 1362
1168=item $nrow_plus_saveLines = $term->total_rows 1363=item $nrow_plus_saveLines = $term->total_rows
1169 1364
1170=item $lines_in_scrollback = $term->nsaved 1365=item $topmost_scrollback_row = $term->top_row
1171 1366
1172Return various integers describing terminal characteristics. 1367Return various integers describing terminal characteristics.
1173 1368
1174=item $x_display = $term->display_id 1369=item $x_display = $term->display_id
1175 1370
1201=item $modifiermask = $term->ModNumLockMask 1396=item $modifiermask = $term->ModNumLockMask
1202 1397
1203Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1398Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1204AltGr), the meta key (often Alt) and the num lock key, if applicable. 1399AltGr), the meta key (often Alt) and the num lock key, if applicable.
1205 1400
1401=item $screen = $term->current_screen
1402
1403Returns the currently displayed screen (0 primary, 1 secondary).
1404
1405=item $cursor_is_hidden = $term->hidden_cursor
1406
1407Returns wether the cursor is currently hidden or not.
1408
1206=item $view_start = $term->view_start ([$newvalue]) 1409=item $view_start = $term->view_start ([$newvalue])
1207 1410
1208Returns the negative row number of the topmost line. Minimum value is 1411Returns the row number of the topmost displayed line. Maximum value is
1209C<0>, which displays the normal terminal contents. Larger values scroll 1412C<0>, which displays the normal terminal contents. Lower values scroll
1210this many lines into the scrollback buffer. 1413this many lines into the scrollback buffer.
1211 1414
1212=item $term->want_refresh 1415=item $term->want_refresh
1213 1416
1214Requests a screen refresh. At the next opportunity, rxvt-unicode will 1417Requests a screen refresh. At the next opportunity, rxvt-unicode will
1229line, starting at column C<$start_col> (default C<0>), which is useful 1432line, starting at column C<$start_col> (default C<0>), which is useful
1230to replace only parts of a line. The font index in the rendition will 1433to replace only parts of a line. The font index in the rendition will
1231automatically be updated. 1434automatically be updated.
1232 1435
1233C<$text> is in a special encoding: tabs and wide characters that use more 1436C<$text> is in a special encoding: tabs and wide characters that use more
1234than one cell when displayed are padded with urxvt::NOCHAR characters 1437than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1235(C<chr 65535>). Characters with combining characters and other characters 1438characters. Characters with combining characters and other characters that
1236that do not fit into the normal tetx encoding will be replaced with 1439do not fit into the normal tetx encoding will be replaced with characters
1237characters in the private use area. 1440in the private use area.
1238 1441
1239You have to obey this encoding when changing text. The advantage is 1442You have to obey this encoding when changing text. The advantage is
1240that C<substr> and similar functions work on screen cells and not on 1443that C<substr> and similar functions work on screen cells and not on
1241characters. 1444characters.
1242 1445
1417 1620
1418Calls XUngrab for the most recent grab. Is called automatically on 1621Calls XUngrab for the most recent grab. Is called automatically on
1419evaluation errors, as it is better to lose the grab in the error case as 1622evaluation errors, as it is better to lose the grab in the error case as
1420the session. 1623the session.
1421 1624
1625=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1626
1627=item $atom_name = $term->XGetAtomName ($atom)
1628
1629=item @atoms = $term->XListProperties ($window)
1630
1631=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1632
1633=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1634
1635=item $term->XDeleteProperty ($window, $property)
1636
1637=item $window = $term->DefaultRootWindow
1638
1639=item $term->XReparentWindow ($window, $parent, [$x, $y])
1640
1641=item $term->XMapWindow ($window)
1642
1643=item $term->XUnmapWindow ($window)
1644
1645=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1646
1647=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1648
1649=item $term->XChangeInput ($window, $add_events[, $del_events])
1650
1651Various X or X-related functions. The C<$term> object only serves as
1652the source of the display, otherwise those functions map more-or-less
1653directory onto the X functions of the same name.
1654
1422=back 1655=back
1423 1656
1424=cut 1657=cut
1425 1658
1426package urxvt::popup; 1659package urxvt::popup;
1527 my $env = $self->{term}->env; 1760 my $env = $self->{term}->env;
1528 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. 1761 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1529 delete $env->{LC_ALL}; 1762 delete $env->{LC_ALL};
1530 $env->{LC_CTYPE} = $self->{term}->locale; 1763 $env->{LC_CTYPE} = $self->{term}->locale;
1531 1764
1532 urxvt::term->new ($env, $self->{term}->resource ("name"), 1765 urxvt::term->new ($env, "popup",
1533 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1766 "--perl-lib" => "", "--perl-ext-common" => "",
1767 "-pty-fd" => -1, "-sl" => 0,
1768 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1534 "--transient-for" => $self->{term}->parent, 1769 "--transient-for" => $self->{term}->parent,
1535 "-display" => $self->{term}->display_id, 1770 "-display" => $self->{term}->display_id,
1536 "-pe" => "urxvt-popup") 1771 "-pe" => "urxvt-popup")
1537 or die "unable to create popup window\n"; 1772 or die "unable to create popup window\n";
1538} 1773}
1543 delete $self->{term}{_destroy}{$self}; 1778 delete $self->{term}{_destroy}{$self};
1544 $self->{term}->ungrab; 1779 $self->{term}->ungrab;
1545} 1780}
1546 1781
1547=back 1782=back
1783
1784=cut
1785
1786package urxvt::watcher;
1787
1788@urxvt::timer::ISA = __PACKAGE__;
1789@urxvt::iow::ISA = __PACKAGE__;
1790@urxvt::pw::ISA = __PACKAGE__;
1791@urxvt::iw::ISA = __PACKAGE__;
1548 1792
1549=head2 The C<urxvt::timer> Class 1793=head2 The C<urxvt::timer> Class
1550 1794
1551This class implements timer watchers/events. Time is represented as a 1795This class implements timer watchers/events. Time is represented as a
1552fractional number of seconds since the epoch. Example: 1796fractional number of seconds since the epoch. Example:
1590Start the timer. 1834Start the timer.
1591 1835
1592=item $timer = $timer->start ($tstamp) 1836=item $timer = $timer->start ($tstamp)
1593 1837
1594Set the event trigger time to C<$tstamp> and start the timer. 1838Set the event trigger time to C<$tstamp> and start the timer.
1839
1840=item $timer = $timer->after ($delay)
1841
1842Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1595 1843
1596=item $timer = $timer->stop 1844=item $timer = $timer->stop
1597 1845
1598Stop the timer. 1846Stop the timer.
1599 1847
1646 1894
1647Stop watching for events on the given filehandle. 1895Stop watching for events on the given filehandle.
1648 1896
1649=back 1897=back
1650 1898
1899=head2 The C<urxvt::iw> Class
1900
1901This class implements idle watchers, that get called automatically when
1902the process is idle. They should return as fast as possible, after doing
1903some useful work.
1904
1905=over 4
1906
1907=item $iw = new urxvt::iw
1908
1909Create a new idle watcher object in stopped state.
1910
1911=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1912
1913Set the callback to be called when the watcher triggers.
1914
1915=item $timer = $timer->start
1916
1917Start the watcher.
1918
1919=item $timer = $timer->stop
1920
1921Stop the watcher.
1922
1923=back
1924
1925=head2 The C<urxvt::pw> Class
1926
1927This class implements process watchers. They create an event whenever a
1928process exits, after which they stop automatically.
1929
1930 my $pid = fork;
1931 ...
1932 $term->{pw} = urxvt::pw
1933 ->new
1934 ->start ($pid)
1935 ->cb (sub {
1936 my ($pw, $exit_status) = @_;
1937 ...
1938 });
1939
1940=over 4
1941
1942=item $pw = new urxvt::pw
1943
1944Create a new process watcher in stopped state.
1945
1946=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1947
1948Set the callback to be called when the timer triggers.
1949
1950=item $pw = $timer->start ($pid)
1951
1952Tells the wqtcher to start watching for process C<$pid>.
1953
1954=item $pw = $pw->stop
1955
1956Stop the watcher.
1957
1958=back
1959
1651=head1 ENVIRONMENT 1960=head1 ENVIRONMENT
1652 1961
1653=head2 URXVT_PERL_VERBOSITY 1962=head2 URXVT_PERL_VERBOSITY
1654 1963
1655This variable controls the verbosity level of the perl extension. Higher 1964This variable controls the verbosity level of the perl extension. Higher

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