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Revision 1.89 by root, Thu Jan 12 12:10:06 2006 UTC vs.
Revision 1.123 by root, Sat Jan 21 14:49:18 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:$2\\x0d/
177
178Of course, this can be modified to suit your needs and your editor :)
179
180To expand the example above to typical perl error messages ("XXX at
181FILENAME line YYY."), you need a slightly more elaborate solution:
182
183 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
184 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
185
186The first line tells the selection code to treat the unchanging part of
187every error message as a selection pattern, and the second line transforms
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.
131 200
132=item mark-urls 201=item mark-urls
133 202
134Uses 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
135make them clickable. When middle-clicked, the program specified in the 204make them clickable. When middle-clicked, the program specified in the
136resource C<urlLauncher> (default C<x-www-browser>) will be started with 205resource C<urlLauncher> (default C<x-www-browser>) will be started with
137the URL as first argument. 206the URL as first argument.
138 207
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
139=item block-graphics-to-ascii 216=item block-graphics-to-ascii
140 217
141A 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,
142by replacing all line-drawing characters (U+2500 .. U+259F) by a 219by replacing all line-drawing characters (U+2500 .. U+259F) by a
143similar-looking ascii character. 220similar-looking ascii character.
149=item example-refresh-hooks 226=item example-refresh-hooks
150 227
151Displays 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
152window. Illustrates overwriting the refresh callbacks to create your own 229window. Illustrates overwriting the refresh callbacks to create your own
153overlays 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/%
154 260
155=back 261=back
156 262
157=head1 API DOCUMENTATION 263=head1 API DOCUMENTATION
158 264
231called whenever the relevant event happens. 337called whenever the relevant event happens.
232 338
233The 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
234the in the C<Extension Objects> section. 340the in the C<Extension Objects> section.
235 341
236B<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
237event 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
238skipped, and the relevant action might not be carried out by the C++ code. 344relevant action might not be carried out by the C++ code.
239 345
240I<< When in doubt, return a false value (preferably C<()>). >> 346I<< When in doubt, return a false value (preferably C<()>). >>
241 347
242=over 4 348=over 4
243 349
244=item on_init $term 350=item on_init $term
245 351
246Called after a new terminal object has been initialized, but before 352Called after a new terminal object has been initialized, but before
247windows 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
248call or deliver senseless data, as terminal size and other characteristics 354call or deliver senseless data, as terminal size and other characteristics
249have not yet been determined. You can safely query and change resources, 355have not yet been determined. You can safely query and change resources
250though. 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.
251 369
252=item on_reset $term 370=item on_reset $term
253 371
254Called 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
255control 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
256variables. 374variables.
257 375
258=item on_start $term 376=item on_child_start $term, $pid
259 377
260Called at the very end of initialisation of a new terminal, just before 378Called just after the child process has been C<fork>ed.
261returning 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>.
262 384
263=item on_sel_make $term, $eventtime 385=item on_sel_make $term, $eventtime
264 386
265Called 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
266selection 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
359 481
360Called whenever the user presses a key combination that has a 482Called whenever the user presses a key combination that has a
361C<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>
362resource in the @@RXVT_NAME@@(1) manpage). 484resource in the @@RXVT_NAME@@(1) manpage).
363 485
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
364=item on_focus_in $term 492=item on_focus_in $term
365 493
366Called whenever the window gets the keyboard focus, before rxvt-unicode 494Called whenever the window gets the keyboard focus, before rxvt-unicode
367does focus in processing. 495does focus in processing.
368 496
369=item on_focus_out $term 497=item on_focus_out $term
370 498
371Called wheneever the window loses keyboard focus, before rxvt-unicode does 499Called wheneever the window loses keyboard focus, before rxvt-unicode does
372focus out processing. 500focus out processing.
373 501
502=item on_configure_notify $term, $event
503
504=item on_property_notify $term, $event
505
374=item on_key_press $term, $event, $keysym, $octets 506=item on_key_press $term, $event, $keysym, $octets
375 507
376=item on_key_release $term, $event, $keysym 508=item on_key_release $term, $event, $keysym
377 509
378=item on_button_press $term, $event 510=item on_button_press $term, $event
387 519
388Called whenever the corresponding X event is received for the terminal If 520Called whenever the corresponding X event is received for the terminal If
389the 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.
390 522
391The 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
392manpage), 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
393and column under the mouse cursor. 525(real, not screen-based) row and column under the mouse cursor.
394 526
395C<on_key_press> additionally receives the string rxvt-unicode would 527C<on_key_press> additionally receives the string rxvt-unicode would
396output, if any, in locale-specific encoding. 528output, if any, in locale-specific encoding.
397 529
398subwindow. 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).
399 540
400=back 541=back
401 542
402=cut 543=cut
403 544
409use Scalar::Util (); 550use Scalar::Util ();
410use List::Util (); 551use List::Util ();
411 552
412our $VERSION = 1; 553our $VERSION = 1;
413our $TERM; 554our $TERM;
555our @TERM_INIT;
556our @TERM_EXT;
414our @HOOKNAME; 557our @HOOKNAME;
415our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 558our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
416our %OPTION; 559our %OPTION;
417 560
418our $LIBDIR; 561our $LIBDIR;
419our $RESNAME; 562our $RESNAME;
420our $RESCLASS; 563our $RESCLASS;
421our $RXVTNAME; 564our $RXVTNAME;
422 565
566our $NOCHAR = chr 0xfffe;
567
423=head2 Variables in the C<urxvt> Package 568=head2 Variables in the C<urxvt> Package
424 569
425=over 4 570=over 4
426 571
427=item $urxvt::LIBDIR 572=item $urxvt::LIBDIR
439 584
440=item $urxvt::TERM 585=item $urxvt::TERM
441 586
442The current terminal. This variable stores the current C<urxvt::term> 587The current terminal. This variable stores the current C<urxvt::term>
443object, 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>.
444 605
445=back 606=back
446 607
447=head2 Functions in the C<urxvt> Package 608=head2 Functions in the C<urxvt> Package
448 609
463Using 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
464correct place, e.g. on stderr of the connecting urxvtc client. 625correct place, e.g. on stderr of the connecting urxvtc client.
465 626
466Messages have a size limit of 1023 bytes currently. 627Messages have a size limit of 1023 bytes currently.
467 628
468=item $is_safe = urxvt::safe
469
470Returns true when it is safe to do potentially unsafe things, such as
471evaluating perl code specified by the user. This is true when urxvt was
472started setuid or setgid.
473
474=item $time = urxvt::NOW 629=item $time = urxvt::NOW
475 630
476Returns the "current time" (as per the event loop). 631Returns the "current time" (as per the event loop).
477 632
478=item urxvt::CurrentTime 633=item urxvt::CurrentTime
479 634
480=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 635=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
481Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 636Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
482Button4Mask, 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
483 654
484Various constants for use in X calls and event processing. 655Various constants for use in X calls and event processing.
485 656
486=back 657=back
487 658
538=back 709=back
539 710
540=cut 711=cut
541 712
542BEGIN { 713BEGIN {
543 urxvt->bootstrap;
544
545 # overwrite perl's warn 714 # overwrite perl's warn
546 *CORE::GLOBAL::warn = sub { 715 *CORE::GLOBAL::warn = sub {
547 my $msg = join "", @_; 716 my $msg = join "", @_;
548 $msg .= "\n" 717 $msg .= "\n"
549 unless $msg =~ /\n$/; 718 unless $msg =~ /\n$/;
550 urxvt::warn ($msg); 719 urxvt::warn ($msg);
551 }; 720 };
552
553 # %ENV is the original startup environment
554 delete $ENV{IFS};
555 delete $ENV{CDPATH};
556 delete $ENV{BASH_ENV};
557 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
558} 721}
559 722
560my @hook_count;
561my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 723my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
562 724
563sub verbose { 725sub verbose {
564 my ($level, $msg) = @_; 726 my ($level, $msg) = @_;
565 warn "$msg\n" if $level <= $verbosity; 727 warn "$msg\n" if $level <= $verbosity;
566} 728}
567 729
568my $extension_pkg = "extension0000";
569my %extension_pkg; 730my %extension_pkg;
570 731
571# load a single script into its own package, once only 732# load a single script into its own package, once only
572sub extension_package($) { 733sub extension_package($) {
573 my ($path) = @_; 734 my ($path) = @_;
574 735
575 $extension_pkg{$path} ||= do { 736 $extension_pkg{$path} ||= do {
576 my $pkg = "urxvt::" . ($extension_pkg++); 737 $path =~ /([^\/\\]+)$/;
738 my $pkg = $1;
739 $pkg =~ s/[^[:word:]]/_/g;
740 $pkg = "urxvt::ext::$pkg";
577 741
578 verbose 3, "loading extension '$path' into package '$pkg'"; 742 verbose 3, "loading extension '$path' into package '$pkg'";
579 743
580 open my $fh, "<:raw", $path 744 open my $fh, "<:raw", $path
581 or die "$path: $!"; 745 or die "$path: $!";
582 746
583 my $source = untaint 747 my $source =
584 "package $pkg; use strict; use utf8;\n" 748 "package $pkg; use strict; use utf8;\n"
585 . "use base urxvt::term::extension::;\n"
586 . "#line 1 \"$path\"\n{\n" 749 . "#line 1 \"$path\"\n{\n"
587 . (do { local $/; <$fh> }) 750 . (do { local $/; <$fh> })
588 . "\n};\n1"; 751 . "\n};\n1";
589 752
590 eval $source 753 eval $source
604 if ($htype == 0) { # INIT 767 if ($htype == 0) { # INIT
605 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 768 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
606 769
607 my %ext_arg; 770 my %ext_arg;
608 771
772 {
773 my @init = @TERM_INIT;
774 @TERM_INIT = ();
775 $_->($TERM) for @init;
776 my @pkg = @TERM_EXT;
777 @TERM_EXT = ();
778 $TERM->register_package ($_) for @pkg;
779 }
780
609 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 781 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
610 if ($_ eq "default") { 782 if ($_ eq "default") {
611 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 783 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
612 } elsif (/^-(.*)$/) { 784 } elsif (/^-(.*)$/) {
613 delete $ext_arg{$1}; 785 delete $ext_arg{$1};
614 } elsif (/^([^<]+)<(.*)>$/) { 786 } elsif (/^([^<]+)<(.*)>$/) {
615 push @{ $ext_arg{$1} }, $2; 787 push @{ $ext_arg{$1} }, $2;
616 } else { 788 } else {
639 if $verbosity >= 10; 811 if $verbosity >= 10;
640 812
641 keys %$cb; 813 keys %$cb;
642 814
643 while (my ($pkg, $cb) = each %$cb) { 815 while (my ($pkg, $cb) = each %$cb) {
644 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 816 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
645 and last; 817 $retval ||= $retval_;
646 818
647 if ($@) { 819 if ($@) {
648 $TERM->ungrab; # better to lose the grab than the session 820 $TERM->ungrab; # better to lose the grab than the session
649 warn $@; 821 warn $@;
650 } 822 }
653 verbose 11, "$HOOKNAME[$htype] returning <$retval>" 825 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
654 if $verbosity >= 11; 826 if $verbosity >= 11;
655 } 827 }
656 828
657 if ($htype == 1) { # DESTROY 829 if ($htype == 1) { # DESTROY
658 if (my $hook = delete $TERM->{_hook}) {
659 for my $htype (0..$#$hook) {
660 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
661 or set_should_invoke $htype, 0;
662 }
663 }
664
665 # clear package objects 830 # clear package objects
666 %$_ = () for values %{ $TERM->{_pkg} }; 831 %$_ = () for values %{ $TERM->{_pkg} };
667 832
668 # clear package 833 # clear package
669 %$TERM = (); 834 %$TERM = ();
670 } 835 }
671 836
672 $retval 837 $retval
673}
674
675sub exec_async(@) {
676 my $pid = fork;
677
678 return
679 if !defined $pid or $pid;
680
681 %ENV = %{ $TERM->env };
682
683 exec @_;
684 _exit 255;
685} 838}
686 839
687# urxvt::term::extension 840# urxvt::term::extension
688 841
689package urxvt::term::extension; 842package urxvt::term::extension;
695 while (my ($name, $cb) = each %hook) { 848 while (my ($name, $cb) = each %hook) {
696 my $htype = $HOOKTYPE{uc $name}; 849 my $htype = $HOOKTYPE{uc $name};
697 defined $htype 850 defined $htype
698 or Carp::croak "unsupported hook type '$name'"; 851 or Carp::croak "unsupported hook type '$name'";
699 852
853 $self->set_should_invoke ($htype, +1)
700 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 854 unless exists $self->{term}{_hook}[$htype]{$pkg};
701 $hook_count[$htype]++
702 or urxvt::set_should_invoke $htype, 1;
703 }
704 855
705 $self->{term}{_hook}[$htype]{$pkg} = $cb; 856 $self->{term}{_hook}[$htype]{$pkg} = $cb;
706 } 857 }
707} 858}
708 859
713 for my $name (@hook) { 864 for my $name (@hook) {
714 my $htype = $HOOKTYPE{uc $name}; 865 my $htype = $HOOKTYPE{uc $name};
715 defined $htype 866 defined $htype
716 or Carp::croak "unsupported hook type '$name'"; 867 or Carp::croak "unsupported hook type '$name'";
717 868
869 $self->set_should_invoke ($htype, -1)
718 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 870 if delete $self->{term}{_hook}[$htype]{$pkg};
719 --$hook_count[$htype]
720 or urxvt::set_should_invoke $htype, 0;
721 }
722 } 871 }
723} 872}
724 873
725our $AUTOLOAD; 874our $AUTOLOAD;
726 875
832# find on_xxx subs in the package and register them 981# find on_xxx subs in the package and register them
833# as hooks 982# as hooks
834sub register_package { 983sub register_package {
835 my ($self, $pkg, $argv) = @_; 984 my ($self, $pkg, $argv) = @_;
836 985
986 no strict 'refs';
987
988 urxvt::verbose 6, "register package $pkg to $self";
989
990 @{"$pkg\::ISA"} = urxvt::term::extension::;
991
837 my $proxy = bless { 992 my $proxy = bless {
838 _pkg => $pkg, 993 _pkg => $pkg,
839 argv => $argv, 994 argv => $argv,
840 }, $pkg; 995 }, $pkg;
841 Scalar::Util::weaken ($proxy->{term} = $self); 996 Scalar::Util::weaken ($proxy->{term} = $self);
872 1027
873Destroy the terminal object (close the window, free resources 1028Destroy the terminal object (close the window, free resources
874etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event 1029etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
875watchers (timers, io watchers) are still active. 1030watchers (timers, io watchers) are still active.
876 1031
1032=item $term->exec_async ($cmd[, @args])
1033
1034Works like the combination of the C<fork>/C<exec> builtins, which executes
1035("starts") programs in the background. This function takes care of setting
1036the user environment before exec'ing the command (e.g. C<PATH>) and should
1037be preferred over explicit calls to C<exec> or C<system>.
1038
1039Returns the pid of the subprocess or C<undef> on error.
1040
1041=cut
1042
1043sub exec_async {
1044 my $self = shift;
1045
1046 my $pid = fork;
1047
1048 return $pid
1049 if !defined $pid or $pid;
1050
1051 %ENV = %{ $self->env };
1052
1053 exec @_;
1054 urxvt::_exit 255;
1055}
1056
877=item $isset = $term->option ($optval[, $set]) 1057=item $isset = $term->option ($optval[, $set])
878 1058
879Returns true if the option specified by C<$optval> is enabled, and 1059Returns true if the option specified by C<$optval> is enabled, and
880optionally change it. All option values are stored by name in the hash 1060optionally change it. All option values are stored by name in the hash
881C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash. 1061C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
883Here is a a likely non-exhaustive list of option names, please see the 1063Here is a a likely non-exhaustive list of option names, please see the
884source file F</src/optinc.h> to see the actual list: 1064source file F</src/optinc.h> to see the actual list:
885 1065
886 borderLess console cursorBlink cursorUnderline hold iconic insecure 1066 borderLess console cursorBlink cursorUnderline hold iconic insecure
887 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1067 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
888 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1068 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
889 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1069 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
890 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1070 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
891 tripleclickwords utmpInhibit visualBell 1071 transparent tripleclickwords utmpInhibit visualBell
892 1072
893=item $value = $term->resource ($name[, $newval]) 1073=item $value = $term->resource ($name[, $newval])
894 1074
895Returns the current resource value associated with a given name and 1075Returns the current resource value associated with a given name and
896optionally sets a new value. Setting values is most useful in the C<init> 1076optionally sets a new value. Setting values is most useful in the C<init>
913 1093
914 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1094 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
915 borderLess color cursorBlink cursorUnderline cutchars delete_key 1095 borderLess color cursorBlink cursorUnderline cutchars delete_key
916 display_name embed ext_bwidth fade font geometry hold iconName 1096 display_name embed ext_bwidth fade font geometry hold iconName
917 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1097 imFont imLocale inputMethod insecure int_bwidth intensityStyles
918 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1098 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
919 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1099 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
920 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1100 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
921 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1101 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
922 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1102 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
923 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1103 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
924 shade term_name title transparent transparent_all tripleclickwords 1104 secondaryScreen secondaryScroll selectstyle shade term_name title
925 utmpInhibit visualBell 1105 transient_for transparent transparent_all tripleclickwords utmpInhibit
1106 visualBell
926 1107
927=cut 1108=cut
928 1109
929sub resource($$;$) { 1110sub resource($$;$) {
930 my ($self, $name) = (shift, shift); 1111 my ($self, $name) = (shift, shift);
1104 1285
1105Normally its not a good idea to use this function, as programs might be 1286Normally its not a good idea to use this function, as programs might be
1106confused by changes in cursor position or scrolling. Its useful inside a 1287confused by changes in cursor position or scrolling. Its useful inside a
1107C<on_add_lines> hook, though. 1288C<on_add_lines> hook, though.
1108 1289
1290=item $term->scr_change_screen ($screen)
1291
1292Switch to given screen - 0 primary, 1 secondary.
1293
1109=item $term->cmd_parse ($octets) 1294=item $term->cmd_parse ($octets)
1110 1295
1111Similar to C<scr_add_lines>, but the argument must be in the 1296Similar to C<scr_add_lines>, but the argument must be in the
1112locale-specific encoding of the terminal and can contain command sequences 1297locale-specific encoding of the terminal and can contain command sequences
1113(escape codes) that will be interpreted. 1298(escape codes) that will be interpreted.
1131 1316
1132=item $windowid = $term->vt 1317=item $windowid = $term->vt
1133 1318
1134Return the window id of the terminal window. 1319Return the window id of the terminal window.
1135 1320
1321=item $term->vt_emask_add ($x_event_mask)
1322
1323Adds the specified events to the vt event mask. Useful e.g. when you want
1324to receive pointer events all the times:
1325
1326 $term->vt_emask_add (urxvt::PointerMotionMask);
1327
1136=item $window_width = $term->width 1328=item $window_width = $term->width
1137 1329
1138=item $window_height = $term->height 1330=item $window_height = $term->height
1139 1331
1140=item $font_width = $term->fwidth 1332=item $font_width = $term->fwidth
1153 1345
1154=item $max_scrollback = $term->saveLines 1346=item $max_scrollback = $term->saveLines
1155 1347
1156=item $nrow_plus_saveLines = $term->total_rows 1348=item $nrow_plus_saveLines = $term->total_rows
1157 1349
1158=item $lines_in_scrollback = $term->nsaved 1350=item $topmost_scrollback_row = $term->top_row
1159 1351
1160Return various integers describing terminal characteristics. 1352Return various integers describing terminal characteristics.
1161 1353
1162=item $x_display = $term->display_id 1354=item $x_display = $term->display_id
1163 1355
1189=item $modifiermask = $term->ModNumLockMask 1381=item $modifiermask = $term->ModNumLockMask
1190 1382
1191Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1383Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1192AltGr), the meta key (often Alt) and the num lock key, if applicable. 1384AltGr), the meta key (often Alt) and the num lock key, if applicable.
1193 1385
1386=item $screen = $term->current_screen
1387
1388Returns the currently displayed screen (0 primary, 1 secondary).
1389
1390=item $cursor_is_hidden = $term->hidden_cursor
1391
1392Returns wether the cursor is currently hidden or not.
1393
1194=item $view_start = $term->view_start ([$newvalue]) 1394=item $view_start = $term->view_start ([$newvalue])
1195 1395
1196Returns the negative row number of the topmost line. Minimum value is 1396Returns the row number of the topmost displayed line. Maximum value is
1197C<0>, which displays the normal terminal contents. Larger values scroll 1397C<0>, which displays the normal terminal contents. Lower values scroll
1198this many lines into the scrollback buffer. 1398this many lines into the scrollback buffer.
1199 1399
1200=item $term->want_refresh 1400=item $term->want_refresh
1201 1401
1202Requests a screen refresh. At the next opportunity, rxvt-unicode will 1402Requests a screen refresh. At the next opportunity, rxvt-unicode will
1216If C<$new_text> is specified, it will replace characters in the current 1416If C<$new_text> is specified, it will replace characters in the current
1217line, starting at column C<$start_col> (default C<0>), which is useful 1417line, starting at column C<$start_col> (default C<0>), which is useful
1218to replace only parts of a line. The font index in the rendition will 1418to replace only parts of a line. The font index in the rendition will
1219automatically be updated. 1419automatically be updated.
1220 1420
1221C<$text> is in a special encoding: tabs and wide characters that use more 1421C<$text> is in a special encoding: tabs and wide characters that use
1222than one cell when displayed are padded with urxvt::NOCHAR characters 1422more than one cell when displayed are padded with C<$urxvt::NOCHAR>
1223(C<chr 65535>). Characters with combining characters and other characters 1423characters. Characters with combining characters and other characters that
1224that do not fit into the normal tetx encoding will be replaced with 1424do not fit into the normal tetx encoding will be replaced with characters
1225characters in the private use area. 1425in the private use area.
1226 1426
1227You have to obey this encoding when changing text. The advantage is 1427You have to obey this encoding when changing text. The advantage is
1228that C<substr> and similar functions work on screen cells and not on 1428that C<substr> and similar functions work on screen cells and not on
1229characters. 1429characters.
1230 1430
1405 1605
1406Calls XUngrab for the most recent grab. Is called automatically on 1606Calls XUngrab for the most recent grab. Is called automatically on
1407evaluation errors, as it is better to lose the grab in the error case as 1607evaluation errors, as it is better to lose the grab in the error case as
1408the session. 1608the session.
1409 1609
1610=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
1611
1612=item $atom_name = $term->XGetAtomName ($atom)
1613
1614=item @atoms = $term->XListProperties ($window)
1615
1616=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
1617
1618=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
1619
1620=item $term->XDeleteProperty ($window, $property)
1621
1622=item $window = $term->DefaultRootWindow
1623
1624=item $term->XReparentWindow ($window, $parent, [$x, $y])
1625
1626=item $term->XMapWindow ($window)
1627
1628=item $term->XUnmapWindow ($window)
1629
1630=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
1631
1632=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
1633
1634=item $term->XChangeInput ($window, $add_events[, $del_events])
1635
1636Various X or X-related functions. The C<$term> object only serves as
1637the source of the display, otherwise those functions map more-or-less
1638directory onto the X functions of the same name.
1639
1410=back 1640=back
1411 1641
1412=cut 1642=cut
1413 1643
1414package urxvt::popup; 1644package urxvt::popup;
1515 my $env = $self->{term}->env; 1745 my $env = $self->{term}->env;
1516 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE. 1746 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1517 delete $env->{LC_ALL}; 1747 delete $env->{LC_ALL};
1518 $env->{LC_CTYPE} = $self->{term}->locale; 1748 $env->{LC_CTYPE} = $self->{term}->locale;
1519 1749
1520 urxvt::term->new ($env, $self->{term}->resource ("name"), 1750 urxvt::term->new ($env, "popup",
1521 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0, 1751 "--perl-lib" => "", "--perl-ext-common" => "",
1752 "-pty-fd" => -1, "-sl" => 0,
1753 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1522 "--transient-for" => $self->{term}->parent, 1754 "--transient-for" => $self->{term}->parent,
1523 "-display" => $self->{term}->display_id, 1755 "-display" => $self->{term}->display_id,
1524 "-pe" => "urxvt-popup") 1756 "-pe" => "urxvt-popup")
1525 or die "unable to create popup window\n"; 1757 or die "unable to create popup window\n";
1526} 1758}
1531 delete $self->{term}{_destroy}{$self}; 1763 delete $self->{term}{_destroy}{$self};
1532 $self->{term}->ungrab; 1764 $self->{term}->ungrab;
1533} 1765}
1534 1766
1535=back 1767=back
1768
1769=cut
1770
1771package urxvt::watcher;
1772
1773@urxvt::timer::ISA = __PACKAGE__;
1774@urxvt::iow::ISA = __PACKAGE__;
1775@urxvt::pw::ISA = __PACKAGE__;
1776@urxvt::iw::ISA = __PACKAGE__;
1536 1777
1537=head2 The C<urxvt::timer> Class 1778=head2 The C<urxvt::timer> Class
1538 1779
1539This class implements timer watchers/events. Time is represented as a 1780This class implements timer watchers/events. Time is represented as a
1540fractional number of seconds since the epoch. Example: 1781fractional number of seconds since the epoch. Example:
1578Start the timer. 1819Start the timer.
1579 1820
1580=item $timer = $timer->start ($tstamp) 1821=item $timer = $timer->start ($tstamp)
1581 1822
1582Set the event trigger time to C<$tstamp> and start the timer. 1823Set the event trigger time to C<$tstamp> and start the timer.
1824
1825=item $timer = $timer->after ($delay)
1826
1827Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1583 1828
1584=item $timer = $timer->stop 1829=item $timer = $timer->stop
1585 1830
1586Stop the timer. 1831Stop the timer.
1587 1832
1634 1879
1635Stop watching for events on the given filehandle. 1880Stop watching for events on the given filehandle.
1636 1881
1637=back 1882=back
1638 1883
1884=head2 The C<urxvt::iw> Class
1885
1886This class implements idle watchers, that get called automatically when
1887the process is idle. They should return as fast as possible, after doing
1888some useful work.
1889
1890=over 4
1891
1892=item $iw = new urxvt::iw
1893
1894Create a new idle watcher object in stopped state.
1895
1896=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1897
1898Set the callback to be called when the watcher triggers.
1899
1900=item $timer = $timer->start
1901
1902Start the watcher.
1903
1904=item $timer = $timer->stop
1905
1906Stop the watcher.
1907
1908=back
1909
1910=head2 The C<urxvt::pw> Class
1911
1912This class implements process watchers. They create an event whenever a
1913process exits, after which they stop automatically.
1914
1915 my $pid = fork;
1916 ...
1917 $term->{pw} = urxvt::pw
1918 ->new
1919 ->start ($pid)
1920 ->cb (sub {
1921 my ($pw, $exit_status) = @_;
1922 ...
1923 });
1924
1925=over 4
1926
1927=item $pw = new urxvt::pw
1928
1929Create a new process watcher in stopped state.
1930
1931=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1932
1933Set the callback to be called when the timer triggers.
1934
1935=item $pw = $timer->start ($pid)
1936
1937Tells the wqtcher to start watching for process C<$pid>.
1938
1939=item $pw = $pw->stop
1940
1941Stop the watcher.
1942
1943=back
1944
1639=head1 ENVIRONMENT 1945=head1 ENVIRONMENT
1640 1946
1641=head2 URXVT_PERL_VERBOSITY 1947=head2 URXVT_PERL_VERBOSITY
1642 1948
1643This variable controls the verbosity level of the perl extension. Higher 1949This variable controls the verbosity level of the perl extension. Higher

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