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Revision 1.91 by root, Fri Jan 13 01:09:37 2006 UTC vs.
Revision 1.124 by root, Sun Jan 22 11:57:06 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
66 URxvt.selection.pattern-0: \\|([^|]+)\\| 70 URxvt.selection.pattern-0: \\|([^|]+)\\|
67 71
68You can look at the source of the selection extension to see more 72You can look at the source of the selection extension to see more
69interesting uses, such as parsing a line from beginning to end. 73interesting uses, such as parsing a line from beginning to end.
70 74
71This extension also offers the following bindable keyboard command: 75This extension also offers following bindable keyboard commands:
72 76
73=over 4 77=over 4
74 78
75=item rot13 79=item rot13
76 80
87 91
88=item selection-popup (enabled by default) 92=item selection-popup (enabled by default)
89 93
90Binds 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
91text into various other formats/action (such as uri unescaping, perl 95text into various other formats/action (such as uri unescaping, perl
92evalution, 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 };
93 116
94=item searchable-scrollback<hotkey> (enabled by default) 117=item searchable-scrollback<hotkey> (enabled by default)
95 118
96Adds regex search functionality to the scrollback buffer, triggered 119Adds regex search functionality to the scrollback buffer, triggered
97by a hotkey (default: C<M-s>). While in search mode, normal terminal 120by 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 127bottom. 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 128was 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 129additionally stores the first match in the current line into the primary
107selection. 130selection.
108 131
132=item readline (enabled by default)
133
134A support package that tries to make editing with readline easier. At the
135moment, it reacts to clicking with the left mouse button by trying to
136move the text cursor to this position. It does so by generating as many
137cursor-left or cursor-right keypresses as required (the this only works
138for programs that correctly support wide characters).
139
140To avoid too many false positives, this is only done when:
141
142=over 4
143
144=item - the mouse is on the same (multi-row-) line as the text cursor.
145
146=item - the primary screen is currently being displayed.
147
148=item - the text cursor is visible.
149
150=back
151
152The normal selection mechanism isn't disabled, so quick successive clicks
153might interfere with selection creation in harmless ways.
154
109=item selection-autotransform 155=item selection-autotransform
110 156
111This selection allows you to do automatic transforms on a selection 157This selection allows you to do automatic transforms on a selection
112whenever a selection is made. 158whenever a selection is made.
113 159
120 166
121For example, the following will transform selections of the form 167For example, the following will transform selections of the form
122C<filename:number>, often seen in compiler messages, into C<vi +$filename 168C<filename:number>, often seen in compiler messages, into C<vi +$filename
123$word>: 169$word>:
124 170
125 URxvt.selection-autotransform.0: s/^(\\S+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/ 171 URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
126 172
127And this example matches the same,but replaces it with vi-commands you can 173And this example matches the same,but replaces it with vi-commands you can
128paste directly into your (vi :) editor: 174paste directly into your (vi :) editor:
129 175
130 URxvt.selection-autotransform.0: s/^(S+):(d+):?$/\\x1b:e \\Q$1\\E\\x0d:$2\\x0d/ 176 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
131 177
132Of course, this can be modified to suit your needs and your editor :) 178Of course, this can be modified to suit your needs and your editor :)
133 179
134To expand the example above to typical perl error messages ("XXX at 180To expand the example above to typical perl error messages ("XXX at
135FILENAME line YYY."), you need a slightly more elaborate solution: 181FILENAME line YYY."), you need a slightly more elaborate solution:
136 182
137 URxvt.selection.pattern-0: ( at .*? line \\d+\\.) 183 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
138 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)\\.$/\x1b:e \\Q$1\E\\x0d:$2\\x0d/ 184 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
139 185
140The first line tells the selection code to treat the unchanging part of 186The first line tells the selection code to treat the unchanging part of
141every error message as a selection pattern, and the second line transforms 187every error message as a selection pattern, and the second line transforms
142the message into vi commands to load the file. 188the message into vi commands to load the file.
189
190=item tabbed
191
192This transforms the terminal into a tabbar with additional terminals, that
193is, it implements what is commonly refered to as "tabbed terminal". The topmost line
194displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
195button per tab.
196
197Clicking a button will activate that tab. Pressing B<Shift-Left> and
198B<Shift-Right> will switch to the tab left or right of the current one,
199while B<Shift-Down> creates a new tab.
143 200
144=item mark-urls 201=item mark-urls
145 202
146Uses per-line display filtering (C<on_line_update>) to underline urls and 203Uses per-line display filtering (C<on_line_update>) to underline urls and
147make them clickable. When middle-clicked, the program specified in the 204make them clickable. When middle-clicked, the program specified in the
148resource C<urlLauncher> (default C<x-www-browser>) will be started with 205resource C<urlLauncher> (default C<x-www-browser>) will be started with
149the URL as first argument. 206the URL as first argument.
150 207
208=item automove-background
209
210This is basically a one-line extension that dynamically changes the background pixmap offset
211to the window position, in effect creating the same effect as pseudo transparency with
212a custom pixmap. No scaling is supported in this mode. Exmaple:
213
214 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
215
151=item block-graphics-to-ascii 216=item block-graphics-to-ascii
152 217
153A not very useful example of filtering all text output to the terminal, 218A not very useful example of filtering all text output to the terminal,
154by replacing all line-drawing characters (U+2500 .. U+259F) by a 219by replacing all line-drawing characters (U+2500 .. U+259F) by a
155similar-looking ascii character. 220similar-looking ascii character.
161=item example-refresh-hooks 226=item example-refresh-hooks
162 227
163Displays a very simple digital clock in the upper right corner of the 228Displays a very simple digital clock in the upper right corner of the
164window. Illustrates overwriting the refresh callbacks to create your own 229window. Illustrates overwriting the refresh callbacks to create your own
165overlays or changes. 230overlays or changes.
231
232=item selection-pastebin
233
234This is a little rarely useful extension that Uploads the selection as
235textfile to a remote site (or does other things). (The implementation is
236not currently secure for use in a multiuser environment as it writes to
237F</tmp> directly.).
238
239It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
240i.e.
241
242 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
243
244Pressing this combination runs a command with C<%> replaced by the name of
245the textfile. This command can be set via a resource:
246
247 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
248
249And the default is likely not useful to anybody but the few people around
250here :)
251
252The name of the textfile is the hex encoded md5 sum of the selection, so
253the same content should lead to the same filename.
254
255After a successful upload the selection will be replaced by the text given
256in the C<selection-pastebin-url> resource (again, the % is the placeholder
257for the filename):
258
259 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
166 260
167=back 261=back
168 262
169=head1 API DOCUMENTATION 263=head1 API DOCUMENTATION
170 264
243called whenever the relevant event happens. 337called whenever the relevant event happens.
244 338
245The first argument passed to them is an extension oject as described in 339The first argument passed to them is an extension oject as described in
246the in the C<Extension Objects> section. 340the in the C<Extension Objects> section.
247 341
248B<All> of these hooks must return a boolean value. If it is true, then the 342B<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 343hooks 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. 344relevant action might not be carried out by the C++ code.
251 345
252I<< When in doubt, return a false value (preferably C<()>). >> 346I<< When in doubt, return a false value (preferably C<()>). >>
253 347
254=over 4 348=over 4
255 349
256=item on_init $term 350=item on_init $term
257 351
258Called after a new terminal object has been initialized, but before 352Called after a new terminal object has been initialized, but before
259windows are created or the command gets run. Most methods are unsafe to 353windows are created or the command gets run. Most methods are unsafe to
260call or deliver senseless data, as terminal size and other characteristics 354call or deliver senseless data, as terminal size and other characteristics
261have not yet been determined. You can safely query and change resources, 355have not yet been determined. You can safely query and change resources
262though. 356and options, though. For many purposes the C<on_start> hook is a better
357place.
358
359=item on_start $term
360
361Called at the very end of initialisation of a new terminal, just before
362trying to map (display) the toplevel and returning to the mainloop.
363
364=item on_destroy $term
365
366Called whenever something tries to destroy terminal, before doing anything
367yet. If this hook returns true, then destruction is skipped, but this is
368rarely a good idea.
263 369
264=item on_reset $term 370=item on_reset $term
265 371
266Called after the screen is "reset" for any reason, such as resizing or 372Called 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 373control sequences. Here is where you can react on changes to size-related
268variables. 374variables.
269 375
270=item on_start $term 376=item on_child_start $term, $pid
271 377
272Called at the very end of initialisation of a new terminal, just before 378Called just after the child process has been C<fork>ed.
273returning to the mainloop. 379
380=item on_child_exit $term, $status
381
382Called just after the child process has exited. C<$status> is the status
383from C<waitpid>.
274 384
275=item on_sel_make $term, $eventtime 385=item on_sel_make $term, $eventtime
276 386
277Called whenever a selection has been made by the user, but before the 387Called 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 388selection text is copied, so changes to the beginning, end or type of the
371 481
372Called whenever the user presses a key combination that has a 482Called whenever the user presses a key combination that has a
373C<perl:string> action bound to it (see description of the B<keysym> 483C<perl:string> action bound to it (see description of the B<keysym>
374resource in the @@RXVT_NAME@@(1) manpage). 484resource in the @@RXVT_NAME@@(1) manpage).
375 485
486=item on_x_event $term, $event
487
488Called on every X event received on the vt window (and possibly other
489windows). Should only be used as a last resort. Most event structure
490members are not passed.
491
376=item on_focus_in $term 492=item on_focus_in $term
377 493
378Called whenever the window gets the keyboard focus, before rxvt-unicode 494Called whenever the window gets the keyboard focus, before rxvt-unicode
379does focus in processing. 495does focus in processing.
380 496
381=item on_focus_out $term 497=item on_focus_out $term
382 498
383Called wheneever the window loses keyboard focus, before rxvt-unicode does 499Called wheneever the window loses keyboard focus, before rxvt-unicode does
384focus out processing. 500focus out processing.
385 501
502=item on_configure_notify $term, $event
503
504=item on_property_notify $term, $event
505
386=item on_key_press $term, $event, $keysym, $octets 506=item on_key_press $term, $event, $keysym, $octets
387 507
388=item on_key_release $term, $event, $keysym 508=item on_key_release $term, $event, $keysym
389 509
390=item on_button_press $term, $event 510=item on_button_press $term, $event
399 519
400Called whenever the corresponding X event is received for the terminal If 520Called whenever the corresponding X event is received for the terminal If
401the hook returns true, then the even will be ignored by rxvt-unicode. 521the hook returns true, then the even will be ignored by rxvt-unicode.
402 522
403The event is a hash with most values as named by Xlib (see the XEvent 523The 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 524manpage), with the additional members C<row> and C<col>, which are the
405and column under the mouse cursor. 525(real, not screen-based) row and column under the mouse cursor.
406 526
407C<on_key_press> additionally receives the string rxvt-unicode would 527C<on_key_press> additionally receives the string rxvt-unicode would
408output, if any, in locale-specific encoding. 528output, if any, in locale-specific encoding.
409 529
410subwindow. 530subwindow.
531
532=item on_client_message $term, $event
533
534=item on_wm_protocols $term, $event
535
536=item on_wm_delete_window $term, $event
537
538Called when various types of ClientMessage events are received (all with
539format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
411 540
412=back 541=back
413 542
414=cut 543=cut
415 544
421use Scalar::Util (); 550use Scalar::Util ();
422use List::Util (); 551use List::Util ();
423 552
424our $VERSION = 1; 553our $VERSION = 1;
425our $TERM; 554our $TERM;
555our @TERM_INIT;
556our @TERM_EXT;
426our @HOOKNAME; 557our @HOOKNAME;
427our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 558our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
428our %OPTION; 559our %OPTION;
429 560
430our $LIBDIR; 561our $LIBDIR;
431our $RESNAME; 562our $RESNAME;
432our $RESCLASS; 563our $RESCLASS;
433our $RXVTNAME; 564our $RXVTNAME;
434 565
566our $NOCHAR = chr 0xffff;
567
435=head2 Variables in the C<urxvt> Package 568=head2 Variables in the C<urxvt> Package
436 569
437=over 4 570=over 4
438 571
439=item $urxvt::LIBDIR 572=item $urxvt::LIBDIR
451 584
452=item $urxvt::TERM 585=item $urxvt::TERM
453 586
454The current terminal. This variable stores the current C<urxvt::term> 587The current terminal. This variable stores the current C<urxvt::term>
455object, whenever a callback/hook is executing. 588object, whenever a callback/hook is executing.
589
590=item @urxvt::TERM_INIT
591
592All coderefs in this array will be called as methods of the next newly
593created C<urxvt::term> object (during the C<on_init> phase). The array
594gets cleared before the codereferences that were in it are being executed,
595so coderefs can push themselves onto it again if they so desire.
596
597This complements to the perl-eval commandline option, but gets executed
598first.
599
600=item @urxvt::TERM_EXT
601
602Works similar to C<@TERM_INIT>, but contains perl package/class names, which
603get registered as normal extensions after calling the hooks in C<@TERM_INIT>
604but before other extensions. Gets cleared just like C<@TERM_INIT>.
456 605
457=back 606=back
458 607
459=head2 Functions in the C<urxvt> Package 608=head2 Functions in the C<urxvt> Package
460 609
475Using this function has the advantage that its output ends up in the 624Using this function has the advantage that its output ends up in the
476correct place, e.g. on stderr of the connecting urxvtc client. 625correct place, e.g. on stderr of the connecting urxvtc client.
477 626
478Messages have a size limit of 1023 bytes currently. 627Messages have a size limit of 1023 bytes currently.
479 628
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 629=item $time = urxvt::NOW
487 630
488Returns the "current time" (as per the event loop). 631Returns the "current time" (as per the event loop).
489 632
490=item urxvt::CurrentTime 633=item urxvt::CurrentTime
491 634
492=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 635=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
493Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 636Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
494Button4Mask, Button5Mask, AnyModifier 637Button4Mask, Button5Mask, AnyModifier
638
639=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
640ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
641PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
642Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
643KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
644ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
645FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
646
647=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
648EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
649GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
650UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
651ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
652CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
653SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
495 654
496Various constants for use in X calls and event processing. 655Various constants for use in X calls and event processing.
497 656
498=back 657=back
499 658
550=back 709=back
551 710
552=cut 711=cut
553 712
554BEGIN { 713BEGIN {
555 urxvt->bootstrap;
556
557 # overwrite perl's warn 714 # overwrite perl's warn
558 *CORE::GLOBAL::warn = sub { 715 *CORE::GLOBAL::warn = sub {
559 my $msg = join "", @_; 716 my $msg = join "", @_;
560 $msg .= "\n" 717 $msg .= "\n"
561 unless $msg =~ /\n$/; 718 unless $msg =~ /\n$/;
562 urxvt::warn ($msg); 719 urxvt::warn ($msg);
563 }; 720 };
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} 721}
571 722
572my @hook_count; 723no warnings 'utf8';
724
573my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 725my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
574 726
575sub verbose { 727sub verbose {
576 my ($level, $msg) = @_; 728 my ($level, $msg) = @_;
577 warn "$msg\n" if $level <= $verbosity; 729 warn "$msg\n" if $level <= $verbosity;
578} 730}
579 731
580my $extension_pkg = "extension0000";
581my %extension_pkg; 732my %extension_pkg;
582 733
583# load a single script into its own package, once only 734# load a single script into its own package, once only
584sub extension_package($) { 735sub extension_package($) {
585 my ($path) = @_; 736 my ($path) = @_;
586 737
587 $extension_pkg{$path} ||= do { 738 $extension_pkg{$path} ||= do {
588 my $pkg = "urxvt::" . ($extension_pkg++); 739 $path =~ /([^\/\\]+)$/;
740 my $pkg = $1;
741 $pkg =~ s/[^[:word:]]/_/g;
742 $pkg = "urxvt::ext::$pkg";
589 743
590 verbose 3, "loading extension '$path' into package '$pkg'"; 744 verbose 3, "loading extension '$path' into package '$pkg'";
591 745
592 open my $fh, "<:raw", $path 746 open my $fh, "<:raw", $path
593 or die "$path: $!"; 747 or die "$path: $!";
594 748
595 my $source = untaint 749 my $source =
596 "package $pkg; use strict; use utf8;\n" 750 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
597 . "use base urxvt::term::extension::;\n"
598 . "#line 1 \"$path\"\n{\n" 751 . "#line 1 \"$path\"\n{\n"
599 . (do { local $/; <$fh> }) 752 . (do { local $/; <$fh> })
600 . "\n};\n1"; 753 . "\n};\n1";
601 754
602 eval $source 755 eval $source
616 if ($htype == 0) { # INIT 769 if ($htype == 0) { # INIT
617 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 770 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
618 771
619 my %ext_arg; 772 my %ext_arg;
620 773
774 {
775 my @init = @TERM_INIT;
776 @TERM_INIT = ();
777 $_->($TERM) for @init;
778 my @pkg = @TERM_EXT;
779 @TERM_EXT = ();
780 $TERM->register_package ($_) for @pkg;
781 }
782
621 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 783 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
622 if ($_ eq "default") { 784 if ($_ eq "default") {
623 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 785 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
624 } elsif (/^-(.*)$/) { 786 } elsif (/^-(.*)$/) {
625 delete $ext_arg{$1}; 787 delete $ext_arg{$1};
626 } elsif (/^([^<]+)<(.*)>$/) { 788 } elsif (/^([^<]+)<(.*)>$/) {
627 push @{ $ext_arg{$1} }, $2; 789 push @{ $ext_arg{$1} }, $2;
628 } else { 790 } else {
651 if $verbosity >= 10; 813 if $verbosity >= 10;
652 814
653 keys %$cb; 815 keys %$cb;
654 816
655 while (my ($pkg, $cb) = each %$cb) { 817 while (my ($pkg, $cb) = each %$cb) {
656 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 818 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
657 and last; 819 $retval ||= $retval_;
658 820
659 if ($@) { 821 if ($@) {
660 $TERM->ungrab; # better to lose the grab than the session 822 $TERM->ungrab; # better to lose the grab than the session
661 warn $@; 823 warn $@;
662 } 824 }
665 verbose 11, "$HOOKNAME[$htype] returning <$retval>" 827 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
666 if $verbosity >= 11; 828 if $verbosity >= 11;
667 } 829 }
668 830
669 if ($htype == 1) { # DESTROY 831 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 $htype, 0;
674 }
675 }
676
677 # clear package objects 832 # clear package objects
678 %$_ = () for values %{ $TERM->{_pkg} }; 833 %$_ = () for values %{ $TERM->{_pkg} };
679 834
680 # clear package 835 # clear package
681 %$TERM = (); 836 %$TERM = ();
682 } 837 }
683 838
684 $retval 839 $retval
685}
686
687sub exec_async(@) {
688 my $pid = fork;
689
690 return
691 if !defined $pid or $pid;
692
693 %ENV = %{ $TERM->env };
694
695 exec @_;
696 _exit 255;
697} 840}
698 841
699# urxvt::term::extension 842# urxvt::term::extension
700 843
701package urxvt::term::extension; 844package urxvt::term::extension;
707 while (my ($name, $cb) = each %hook) { 850 while (my ($name, $cb) = each %hook) {
708 my $htype = $HOOKTYPE{uc $name}; 851 my $htype = $HOOKTYPE{uc $name};
709 defined $htype 852 defined $htype
710 or Carp::croak "unsupported hook type '$name'"; 853 or Carp::croak "unsupported hook type '$name'";
711 854
855 $self->set_should_invoke ($htype, +1)
712 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 856 unless exists $self->{term}{_hook}[$htype]{$pkg};
713 $hook_count[$htype]++
714 or urxvt::set_should_invoke $htype, 1;
715 }
716 857
717 $self->{term}{_hook}[$htype]{$pkg} = $cb; 858 $self->{term}{_hook}[$htype]{$pkg} = $cb;
718 } 859 }
719} 860}
720 861
725 for my $name (@hook) { 866 for my $name (@hook) {
726 my $htype = $HOOKTYPE{uc $name}; 867 my $htype = $HOOKTYPE{uc $name};
727 defined $htype 868 defined $htype
728 or Carp::croak "unsupported hook type '$name'"; 869 or Carp::croak "unsupported hook type '$name'";
729 870
871 $self->set_should_invoke ($htype, -1)
730 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 872 if delete $self->{term}{_hook}[$htype]{$pkg};
731 --$hook_count[$htype]
732 or urxvt::set_should_invoke $htype, 0;
733 }
734 } 873 }
735} 874}
736 875
737our $AUTOLOAD; 876our $AUTOLOAD;
738 877
844# find on_xxx subs in the package and register them 983# find on_xxx subs in the package and register them
845# as hooks 984# as hooks
846sub register_package { 985sub register_package {
847 my ($self, $pkg, $argv) = @_; 986 my ($self, $pkg, $argv) = @_;
848 987
988 no strict 'refs';
989
990 urxvt::verbose 6, "register package $pkg to $self";
991
992 @{"$pkg\::ISA"} = urxvt::term::extension::;
993
849 my $proxy = bless { 994 my $proxy = bless {
850 _pkg => $pkg, 995 _pkg => $pkg,
851 argv => $argv, 996 argv => $argv,
852 }, $pkg; 997 }, $pkg;
853 Scalar::Util::weaken ($proxy->{term} = $self); 998 Scalar::Util::weaken ($proxy->{term} = $self);
884 1029
885Destroy the terminal object (close the window, free resources 1030Destroy the terminal object (close the window, free resources
886etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1031etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
887watchers (timers, io watchers) are still active. 1032watchers (timers, io watchers) are still active.
888 1033
1034=item $term->exec_async ($cmd[, @args])
1035
1036Works like the combination of the C<fork>/C<exec> builtins, which executes
1037("starts") programs in the background. This function takes care of setting
1038the user environment before exec'ing the command (e.g. C<PATH>) and should
1039be preferred over explicit calls to C<exec> or C<system>.
1040
1041Returns the pid of the subprocess or C<undef> on error.
1042
1043=cut
1044
1045sub exec_async {
1046 my $self = shift;
1047
1048 my $pid = fork;
1049
1050 return $pid
1051 if !defined $pid or $pid;
1052
1053 %ENV = %{ $self->env };
1054
1055 exec @_;
1056 urxvt::_exit 255;
1057}
1058
889=item $isset = $term->option ($optval[, $set]) 1059=item $isset = $term->option ($optval[, $set])
890 1060
891Returns true if the option specified by C<$optval> is enabled, and 1061Returns true if the option specified by C<$optval> is enabled, and
892optionally change it. All option values are stored by name in the hash 1062optionally 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. 1063C<%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 1065Here is a a likely non-exhaustive list of option names, please see the
896source file F</src/optinc.h> to see the actual list: 1066source file F</src/optinc.h> to see the actual list:
897 1067
898 borderLess console cursorBlink cursorUnderline hold iconic insecure 1068 borderLess console cursorBlink cursorUnderline hold iconic insecure
899 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1069 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
900 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1070 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
901 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1071 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
902 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1072 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
903 tripleclickwords utmpInhibit visualBell 1073 transparent tripleclickwords utmpInhibit visualBell
904 1074
905=item $value = $term->resource ($name[, $newval]) 1075=item $value = $term->resource ($name[, $newval])
906 1076
907Returns the current resource value associated with a given name and 1077Returns the current resource value associated with a given name and
908optionally sets a new value. Setting values is most useful in the C<init> 1078optionally sets a new value. Setting values is most useful in the C<init>
925 1095
926 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1096 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
927 borderLess color cursorBlink cursorUnderline cutchars delete_key 1097 borderLess color cursorBlink cursorUnderline cutchars delete_key
928 display_name embed ext_bwidth fade font geometry hold iconName 1098 display_name embed ext_bwidth fade font geometry hold iconName
929 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1099 imFont imLocale inputMethod insecure int_bwidth intensityStyles
930 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1100 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
931 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1101 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
932 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1102 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
933 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1103 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
934 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1104 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
935 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1105 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
936 shade term_name title transparent transparent_all tripleclickwords 1106 secondaryScreen secondaryScroll selectstyle shade term_name title
937 utmpInhibit visualBell 1107 transient_for transparent transparent_all tripleclickwords utmpInhibit
1108 visualBell
938 1109
939=cut 1110=cut
940 1111
941sub resource($$;$) { 1112sub resource($$;$) {
942 my ($self, $name) = (shift, shift); 1113 my ($self, $name) = (shift, shift);
1116 1287
1117Normally its not a good idea to use this function, as programs might be 1288Normally 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 1289confused by changes in cursor position or scrolling. Its useful inside a
1119C<on_add_lines> hook, though. 1290C<on_add_lines> hook, though.
1120 1291
1292=item $term->scr_change_screen ($screen)
1293
1294Switch to given screen - 0 primary, 1 secondary.
1295
1121=item $term->cmd_parse ($octets) 1296=item $term->cmd_parse ($octets)
1122 1297
1123Similar to C<scr_add_lines>, but the argument must be in the 1298Similar to C<scr_add_lines>, but the argument must be in the
1124locale-specific encoding of the terminal and can contain command sequences 1299locale-specific encoding of the terminal and can contain command sequences
1125(escape codes) that will be interpreted. 1300(escape codes) that will be interpreted.
1143 1318
1144=item $windowid = $term->vt 1319=item $windowid = $term->vt
1145 1320
1146Return the window id of the terminal window. 1321Return the window id of the terminal window.
1147 1322
1323=item $term->vt_emask_add ($x_event_mask)
1324
1325Adds the specified events to the vt event mask. Useful e.g. when you want
1326to receive pointer events all the times:
1327
1328 $term->vt_emask_add (urxvt::PointerMotionMask);
1329
1148=item $window_width = $term->width 1330=item $window_width = $term->width
1149 1331
1150=item $window_height = $term->height 1332=item $window_height = $term->height
1151 1333
1152=item $font_width = $term->fwidth 1334=item $font_width = $term->fwidth
1165 1347
1166=item $max_scrollback = $term->saveLines 1348=item $max_scrollback = $term->saveLines
1167 1349
1168=item $nrow_plus_saveLines = $term->total_rows 1350=item $nrow_plus_saveLines = $term->total_rows
1169 1351
1170=item $lines_in_scrollback = $term->nsaved 1352=item $topmost_scrollback_row = $term->top_row
1171 1353
1172Return various integers describing terminal characteristics. 1354Return various integers describing terminal characteristics.
1173 1355
1174=item $x_display = $term->display_id 1356=item $x_display = $term->display_id
1175 1357
1201=item $modifiermask = $term->ModNumLockMask 1383=item $modifiermask = $term->ModNumLockMask
1202 1384
1203Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1385Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1204AltGr), the meta key (often Alt) and the num lock key, if applicable. 1386AltGr), the meta key (often Alt) and the num lock key, if applicable.
1205 1387
1388=item $screen = $term->current_screen
1389
1390Returns the currently displayed screen (0 primary, 1 secondary).
1391
1392=item $cursor_is_hidden = $term->hidden_cursor
1393
1394Returns wether the cursor is currently hidden or not.
1395
1206=item $view_start = $term->view_start ([$newvalue]) 1396=item $view_start = $term->view_start ([$newvalue])
1207 1397
1208Returns the negative row number of the topmost line. Minimum value is 1398Returns the row number of the topmost displayed line. Maximum value is
1209C<0>, which displays the normal terminal contents. Larger values scroll 1399C<0>, which displays the normal terminal contents. Lower values scroll
1210this many lines into the scrollback buffer. 1400this many lines into the scrollback buffer.
1211 1401
1212=item $term->want_refresh 1402=item $term->want_refresh
1213 1403
1214Requests a screen refresh. At the next opportunity, rxvt-unicode will 1404Requests a screen refresh. At the next opportunity, rxvt-unicode will
1229line, starting at column C<$start_col> (default C<0>), which is useful 1419line, starting at column C<$start_col> (default C<0>), which is useful
1230to replace only parts of a line. The font index in the rendition will 1420to replace only parts of a line. The font index in the rendition will
1231automatically be updated. 1421automatically be updated.
1232 1422
1233C<$text> is in a special encoding: tabs and wide characters that use more 1423C<$text> is in a special encoding: tabs and wide characters that use more
1234than one cell when displayed are padded with urxvt::NOCHAR characters 1424than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1235(C<chr 65535>). Characters with combining characters and other characters 1425characters. Characters with combining characters and other characters that
1236that do not fit into the normal tetx encoding will be replaced with 1426do not fit into the normal tetx encoding will be replaced with characters
1237characters in the private use area. 1427in the private use area.
1238 1428
1239You have to obey this encoding when changing text. The advantage is 1429You have to obey this encoding when changing text. The advantage is
1240that C<substr> and similar functions work on screen cells and not on 1430that C<substr> and similar functions work on screen cells and not on
1241characters. 1431characters.
1242 1432
1417 1607
1418Calls XUngrab for the most recent grab. Is called automatically on 1608Calls 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 1609evaluation errors, as it is better to lose the grab in the error case as
1420the session. 1610the session.
1421 1611
1612=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1613
1614=item $atom_name = $term->XGetAtomName ($atom)
1615
1616=item @atoms = $term->XListProperties ($window)
1617
1618=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1619
1620=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1621
1622=item $term->XDeleteProperty ($window, $property)
1623
1624=item $window = $term->DefaultRootWindow
1625
1626=item $term->XReparentWindow ($window, $parent, [$x, $y])
1627
1628=item $term->XMapWindow ($window)
1629
1630=item $term->XUnmapWindow ($window)
1631
1632=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1633
1634=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1635
1636=item $term->XChangeInput ($window, $add_events[, $del_events])
1637
1638Various X or X-related functions. The C<$term> object only serves as
1639the source of the display, otherwise those functions map more-or-less
1640directory onto the X functions of the same name.
1641
1422=back 1642=back
1423 1643
1424=cut 1644=cut
1425 1645
1426package urxvt::popup; 1646package urxvt::popup;
1527 my $env = $self->{term}->env; 1747 my $env = $self->{term}->env;
1528 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. 1748 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1529 delete $env->{LC_ALL}; 1749 delete $env->{LC_ALL};
1530 $env->{LC_CTYPE} = $self->{term}->locale; 1750 $env->{LC_CTYPE} = $self->{term}->locale;
1531 1751
1532 urxvt::term->new ($env, $self->{term}->resource ("name"), 1752 urxvt::term->new ($env, "popup",
1533 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1753 "--perl-lib" => "", "--perl-ext-common" => "",
1754 "-pty-fd" => -1, "-sl" => 0,
1755 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1534 "--transient-for" => $self->{term}->parent, 1756 "--transient-for" => $self->{term}->parent,
1535 "-display" => $self->{term}->display_id, 1757 "-display" => $self->{term}->display_id,
1536 "-pe" => "urxvt-popup") 1758 "-pe" => "urxvt-popup")
1537 or die "unable to create popup window\n"; 1759 or die "unable to create popup window\n";
1538} 1760}
1543 delete $self->{term}{_destroy}{$self}; 1765 delete $self->{term}{_destroy}{$self};
1544 $self->{term}->ungrab; 1766 $self->{term}->ungrab;
1545} 1767}
1546 1768
1547=back 1769=back
1770
1771=cut
1772
1773package urxvt::watcher;
1774
1775@urxvt::timer::ISA = __PACKAGE__;
1776@urxvt::iow::ISA = __PACKAGE__;
1777@urxvt::pw::ISA = __PACKAGE__;
1778@urxvt::iw::ISA = __PACKAGE__;
1548 1779
1549=head2 The C<urxvt::timer> Class 1780=head2 The C<urxvt::timer> Class
1550 1781
1551This class implements timer watchers/events. Time is represented as a 1782This class implements timer watchers/events. Time is represented as a
1552fractional number of seconds since the epoch. Example: 1783fractional number of seconds since the epoch. Example:
1590Start the timer. 1821Start the timer.
1591 1822
1592=item $timer = $timer->start ($tstamp) 1823=item $timer = $timer->start ($tstamp)
1593 1824
1594Set the event trigger time to C<$tstamp> and start the timer. 1825Set the event trigger time to C<$tstamp> and start the timer.
1826
1827=item $timer = $timer->after ($delay)
1828
1829Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1595 1830
1596=item $timer = $timer->stop 1831=item $timer = $timer->stop
1597 1832
1598Stop the timer. 1833Stop the timer.
1599 1834
1646 1881
1647Stop watching for events on the given filehandle. 1882Stop watching for events on the given filehandle.
1648 1883
1649=back 1884=back
1650 1885
1886=head2 The C<urxvt::iw> Class
1887
1888This class implements idle watchers, that get called automatically when
1889the process is idle. They should return as fast as possible, after doing
1890some useful work.
1891
1892=over 4
1893
1894=item $iw = new urxvt::iw
1895
1896Create a new idle watcher object in stopped state.
1897
1898=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1899
1900Set the callback to be called when the watcher triggers.
1901
1902=item $timer = $timer->start
1903
1904Start the watcher.
1905
1906=item $timer = $timer->stop
1907
1908Stop the watcher.
1909
1910=back
1911
1912=head2 The C<urxvt::pw> Class
1913
1914This class implements process watchers. They create an event whenever a
1915process exits, after which they stop automatically.
1916
1917 my $pid = fork;
1918 ...
1919 $term->{pw} = urxvt::pw
1920 ->new
1921 ->start ($pid)
1922 ->cb (sub {
1923 my ($pw, $exit_status) = @_;
1924 ...
1925 });
1926
1927=over 4
1928
1929=item $pw = new urxvt::pw
1930
1931Create a new process watcher in stopped state.
1932
1933=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1934
1935Set the callback to be called when the timer triggers.
1936
1937=item $pw = $timer->start ($pid)
1938
1939Tells the wqtcher to start watching for process C<$pid>.
1940
1941=item $pw = $pw->stop
1942
1943Stop the watcher.
1944
1945=back
1946
1651=head1 ENVIRONMENT 1947=head1 ENVIRONMENT
1652 1948
1653=head2 URXVT_PERL_VERBOSITY 1949=head2 URXVT_PERL_VERBOSITY
1654 1950
1655This variable controls the verbosity level of the perl extension. Higher 1951This variable controls the verbosity level of the perl extension. Higher

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