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Revision 1.89 by root, Thu Jan 12 12:10:06 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:$2\\x0d/
186
187Of course, this can be modified to suit your needs and your editor :)
188
189To expand the example above to typical perl error messages ("XXX at
190FILENAME line YYY."), you need a slightly more elaborate solution:
191
192 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
193 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
194
195The first line tells the selection code to treat the unchanging part of
196every error message as a selection pattern, and the second line transforms
197the message into vi commands to load the file.
198
199=item tabbed
200
201This transforms the terminal into a tabbar with additional terminals, that
202is, it implements what is commonly refered to as "tabbed terminal". The topmost line
203displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
204button per tab.
205
206Clicking a button will activate that tab. Pressing B<Shift-Left> and
207B<Shift-Right> will switch to the tab left or right of the current one,
208while B<Shift-Down> creates a new tab.
131 209
132=item mark-urls 210=item mark-urls
133 211
134Uses 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
135make them clickable. When middle-clicked, the program specified in the 213make them clickable. When middle-clicked, the program specified in the
136resource C<urlLauncher> (default C<x-www-browser>) will be started with 214resource C<urlLauncher> (default C<x-www-browser>) will be started with
137the URL as first argument. 215the URL as first argument.
138 216
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
139=item block-graphics-to-ascii 225=item block-graphics-to-ascii
140 226
141A 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,
142by replacing all line-drawing characters (U+2500 .. U+259F) by a 228by replacing all line-drawing characters (U+2500 .. U+259F) by a
143similar-looking ascii character. 229similar-looking ascii character.
149=item example-refresh-hooks 235=item example-refresh-hooks
150 236
151Displays 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
152window. Illustrates overwriting the refresh callbacks to create your own 238window. Illustrates overwriting the refresh callbacks to create your own
153overlays 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/%
154 269
155=back 270=back
156 271
157=head1 API DOCUMENTATION 272=head1 API DOCUMENTATION
158 273
231called whenever the relevant event happens. 346called whenever the relevant event happens.
232 347
233The 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
234the in the C<Extension Objects> section. 349the in the C<Extension Objects> section.
235 350
236B<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
237event 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
238skipped, and the relevant action might not be carried out by the C++ code. 353relevant action might not be carried out by the C++ code.
239 354
240I<< When in doubt, return a false value (preferably C<()>). >> 355I<< When in doubt, return a false value (preferably C<()>). >>
241 356
242=over 4 357=over 4
243 358
244=item on_init $term 359=item on_init $term
245 360
246Called after a new terminal object has been initialized, but before 361Called after a new terminal object has been initialized, but before
247windows 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
248call or deliver senseless data, as terminal size and other characteristics 363call or deliver senseless data, as terminal size and other characteristics
249have not yet been determined. You can safely query and change resources, 364have not yet been determined. You can safely query and change resources
250though. 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).
251 377
252=item on_reset $term 378=item on_reset $term
253 379
254Called 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
255control 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
256variables. 382variables.
257 383
258=item on_start $term 384=item on_child_start $term, $pid
259 385
260Called at the very end of initialisation of a new terminal, just before 386Called just after the child process has been C<fork>ed.
261returning 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>.
262 392
263=item on_sel_make $term, $eventtime 393=item on_sel_make $term, $eventtime
264 394
265Called 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
266selection 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
359 489
360Called whenever the user presses a key combination that has a 490Called whenever the user presses a key combination that has a
361C<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>
362resource in the @@RXVT_NAME@@(1) manpage). 492resource in the @@RXVT_NAME@@(1) manpage).
363 493
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
364=item on_focus_in $term 500=item on_focus_in $term
365 501
366Called whenever the window gets the keyboard focus, before rxvt-unicode 502Called whenever the window gets the keyboard focus, before rxvt-unicode
367does focus in processing. 503does focus in processing.
368 504
369=item on_focus_out $term 505=item on_focus_out $term
370 506
371Called wheneever the window loses keyboard focus, before rxvt-unicode does 507Called wheneever the window loses keyboard focus, before rxvt-unicode does
372focus out processing. 508focus out processing.
373 509
510=item on_configure_notify $term, $event
511
512=item on_property_notify $term, $event
513
374=item on_key_press $term, $event, $keysym, $octets 514=item on_key_press $term, $event, $keysym, $octets
375 515
376=item on_key_release $term, $event, $keysym 516=item on_key_release $term, $event, $keysym
377 517
378=item on_button_press $term, $event 518=item on_button_press $term, $event
387 527
388Called whenever the corresponding X event is received for the terminal If 528Called whenever the corresponding X event is received for the terminal If
389the 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.
390 530
391The 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
392manpage), 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
393and column under the mouse cursor. 533(real, not screen-based) row and column under the mouse cursor.
394 534
395C<on_key_press> additionally receives the string rxvt-unicode would 535C<on_key_press> additionally receives the string rxvt-unicode would
396output, if any, in locale-specific encoding. 536output, if any, in locale-specific encoding.
397 537
398subwindow. 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).
399 548
400=back 549=back
401 550
402=cut 551=cut
403 552
409use Scalar::Util (); 558use Scalar::Util ();
410use List::Util (); 559use List::Util ();
411 560
412our $VERSION = 1; 561our $VERSION = 1;
413our $TERM; 562our $TERM;
563our @TERM_INIT;
564our @TERM_EXT;
414our @HOOKNAME; 565our @HOOKNAME;
415our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME; 566our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
416our %OPTION; 567our %OPTION;
417 568
418our $LIBDIR; 569our $LIBDIR;
419our $RESNAME; 570our $RESNAME;
420our $RESCLASS; 571our $RESCLASS;
421our $RXVTNAME; 572our $RXVTNAME;
422 573
574our $NOCHAR = chr 0xffff;
575
423=head2 Variables in the C<urxvt> Package 576=head2 Variables in the C<urxvt> Package
424 577
425=over 4 578=over 4
426 579
427=item $urxvt::LIBDIR 580=item $urxvt::LIBDIR
439 592
440=item $urxvt::TERM 593=item $urxvt::TERM
441 594
442The current terminal. This variable stores the current C<urxvt::term> 595The current terminal. This variable stores the current C<urxvt::term>
443object, 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>.
444 613
445=back 614=back
446 615
447=head2 Functions in the C<urxvt> Package 616=head2 Functions in the C<urxvt> Package
448 617
463Using 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
464correct place, e.g. on stderr of the connecting urxvtc client. 633correct place, e.g. on stderr of the connecting urxvtc client.
465 634
466Messages have a size limit of 1023 bytes currently. 635Messages have a size limit of 1023 bytes currently.
467 636
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 637=item $time = urxvt::NOW
475 638
476Returns the "current time" (as per the event loop). 639Returns the "current time" (as per the event loop).
477 640
478=item urxvt::CurrentTime 641=item urxvt::CurrentTime
479 642
480=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, 643=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
481Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask, 644Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
482Button4Mask, 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
483 662
484Various constants for use in X calls and event processing. 663Various constants for use in X calls and event processing.
485 664
486=back 665=back
487 666
538=back 717=back
539 718
540=cut 719=cut
541 720
542BEGIN { 721BEGIN {
543 urxvt->bootstrap;
544
545 # overwrite perl's warn 722 # overwrite perl's warn
546 *CORE::GLOBAL::warn = sub { 723 *CORE::GLOBAL::warn = sub {
547 my $msg = join "", @_; 724 my $msg = join "", @_;
548 $msg .= "\n" 725 $msg .= "\n"
549 unless $msg =~ /\n$/; 726 unless $msg =~ /\n$/;
550 urxvt::warn ($msg); 727 urxvt::warn ($msg);
551 }; 728 };
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} 729}
559 730
560my @hook_count; 731no warnings 'utf8';
732
561my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 733my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
562 734
563sub verbose { 735sub verbose {
564 my ($level, $msg) = @_; 736 my ($level, $msg) = @_;
565 warn "$msg\n" if $level <= $verbosity; 737 warn "$msg\n" if $level <= $verbosity;
566} 738}
567 739
568my $extension_pkg = "extension0000";
569my %extension_pkg; 740my %extension_pkg;
570 741
571# load a single script into its own package, once only 742# load a single script into its own package, once only
572sub extension_package($) { 743sub extension_package($) {
573 my ($path) = @_; 744 my ($path) = @_;
574 745
575 $extension_pkg{$path} ||= do { 746 $extension_pkg{$path} ||= do {
576 my $pkg = "urxvt::" . ($extension_pkg++); 747 $path =~ /([^\/\\]+)$/;
748 my $pkg = $1;
749 $pkg =~ s/[^[:word:]]/_/g;
750 $pkg = "urxvt::ext::$pkg";
577 751
578 verbose 3, "loading extension '$path' into package '$pkg'"; 752 verbose 3, "loading extension '$path' into package '$pkg'";
579 753
580 open my $fh, "<:raw", $path 754 open my $fh, "<:raw", $path
581 or die "$path: $!"; 755 or die "$path: $!";
582 756
583 my $source = untaint 757 my $source =
584 "package $pkg; use strict; use utf8;\n" 758 "package $pkg; use strict; use utf8; no warnings 'utf8';\n"
585 . "use base urxvt::term::extension::;\n"
586 . "#line 1 \"$path\"\n{\n" 759 . "#line 1 \"$path\"\n{\n"
587 . (do { local $/; <$fh> }) 760 . (do { local $/; <$fh> })
588 . "\n};\n1"; 761 . "\n};\n1";
589 762
590 eval $source 763 eval $source
604 if ($htype == 0) { # INIT 777 if ($htype == 0) { # INIT
605 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 778 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
606 779
607 my %ext_arg; 780 my %ext_arg;
608 781
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
609 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) { 791 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
610 if ($_ eq "default") { 792 if ($_ eq "default") {
611 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback); 793 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
612 } elsif (/^-(.*)$/) { 794 } elsif (/^-(.*)$/) {
613 delete $ext_arg{$1}; 795 delete $ext_arg{$1};
614 } elsif (/^([^<]+)<(.*)>$/) { 796 } elsif (/^([^<]+)<(.*)>$/) {
615 push @{ $ext_arg{$1} }, $2; 797 push @{ $ext_arg{$1} }, $2;
616 } else { 798 } else {
639 if $verbosity >= 10; 821 if $verbosity >= 10;
640 822
641 keys %$cb; 823 keys %$cb;
642 824
643 while (my ($pkg, $cb) = each %$cb) { 825 while (my ($pkg, $cb) = each %$cb) {
644 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) } 826 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
645 and last; 827 $retval ||= $retval_;
646 828
647 if ($@) { 829 if ($@) {
648 $TERM->ungrab; # better to lose the grab than the session 830 $TERM->ungrab; # better to lose the grab than the session
649 warn $@; 831 warn $@;
650 } 832 }
653 verbose 11, "$HOOKNAME[$htype] returning <$retval>" 835 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
654 if $verbosity >= 11; 836 if $verbosity >= 11;
655 } 837 }
656 838
657 if ($htype == 1) { # DESTROY 839 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 $htype, 0;
662 }
663 }
664
665 # clear package objects 840 # clear package objects
666 %$_ = () for values %{ $TERM->{_pkg} }; 841 %$_ = () for values %{ $TERM->{_pkg} };
667 842
668 # clear package 843 # clear package
669 %$TERM = (); 844 %$TERM = ();
670 } 845 }
671 846
672 $retval 847 $retval
673}
674
675sub exec_async(@) {
676 my $pid = fork;
677
678 return
679 if !defined $pid or $pid;
680
681 %ENV = %{ $TERM->env };
682
683 exec @_;
684 _exit 255;
685} 848}
686 849
687# urxvt::term::extension 850# urxvt::term::extension
688 851
689package urxvt::term::extension; 852package urxvt::term::extension;
695 while (my ($name, $cb) = each %hook) { 858 while (my ($name, $cb) = each %hook) {
696 my $htype = $HOOKTYPE{uc $name}; 859 my $htype = $HOOKTYPE{uc $name};
697 defined $htype 860 defined $htype
698 or Carp::croak "unsupported hook type '$name'"; 861 or Carp::croak "unsupported hook type '$name'";
699 862
863 $self->set_should_invoke ($htype, +1)
700 unless (exists $self->{term}{_hook}[$htype]{$pkg}) { 864 unless exists $self->{term}{_hook}[$htype]{$pkg};
701 $hook_count[$htype]++
702 or urxvt::set_should_invoke $htype, 1;
703 }
704 865
705 $self->{term}{_hook}[$htype]{$pkg} = $cb; 866 $self->{term}{_hook}[$htype]{$pkg} = $cb;
706 } 867 }
707} 868}
708 869
713 for my $name (@hook) { 874 for my $name (@hook) {
714 my $htype = $HOOKTYPE{uc $name}; 875 my $htype = $HOOKTYPE{uc $name};
715 defined $htype 876 defined $htype
716 or Carp::croak "unsupported hook type '$name'"; 877 or Carp::croak "unsupported hook type '$name'";
717 878
879 $self->set_should_invoke ($htype, -1)
718 if (delete $self->{term}{_hook}[$htype]{$pkg}) { 880 if delete $self->{term}{_hook}[$htype]{$pkg};
719 --$hook_count[$htype]
720 or urxvt::set_should_invoke $htype, 0;
721 }
722 } 881 }
723} 882}
724 883
725our $AUTOLOAD; 884our $AUTOLOAD;
726 885
832# find on_xxx subs in the package and register them 991# find on_xxx subs in the package and register them
833# as hooks 992# as hooks
834sub register_package { 993sub register_package {
835 my ($self, $pkg, $argv) = @_; 994 my ($self, $pkg, $argv) = @_;
836 995
996 no strict 'refs';
997
998 urxvt::verbose 6, "register package $pkg to $self";
999
1000 @{"$pkg\::ISA"} = urxvt::term::extension::;
1001
837 my $proxy = bless { 1002 my $proxy = bless {
838 _pkg => $pkg, 1003 _pkg => $pkg,
839 argv => $argv, 1004 argv => $argv,
840 }, $pkg; 1005 }, $pkg;
841 Scalar::Util::weaken ($proxy->{term} = $self); 1006 Scalar::Util::weaken ($proxy->{term} = $self);
872 1037
873Destroy the terminal object (close the window, free resources 1038Destroy the terminal object (close the window, free resources
874etc.). 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
875watchers (timers, io watchers) are still active. 1040watchers (timers, io watchers) are still active.
876 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
877=item $isset = $term->option ($optval[, $set]) 1067=item $isset = $term->option ($optval[, $set])
878 1068
879Returns true if the option specified by C<$optval> is enabled, and 1069Returns true if the option specified by C<$optval> is enabled, and
880optionally 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
881C<%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.
883Here 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
884source file F</src/optinc.h> to see the actual list: 1074source file F</src/optinc.h> to see the actual list:
885 1075
886 borderLess console cursorBlink cursorUnderline hold iconic insecure 1076 borderLess console cursorBlink cursorUnderline hold iconic insecure
887 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage 1077 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
888 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating 1078 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
889 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer 1079 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
890 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent 1080 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
891 tripleclickwords utmpInhibit visualBell 1081 transparent tripleclickwords utmpInhibit visualBell
892 1082
893=item $value = $term->resource ($name[, $newval]) 1083=item $value = $term->resource ($name[, $newval])
894 1084
895Returns the current resource value associated with a given name and 1085Returns the current resource value associated with a given name and
896optionally 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>
913 1103
914 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1104 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
915 borderLess color cursorBlink cursorUnderline cutchars delete_key 1105 borderLess color cursorBlink cursorUnderline cutchars delete_key
916 display_name embed ext_bwidth fade font geometry hold iconName 1106 display_name embed ext_bwidth fade font geometry hold iconName
917 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1107 imFont imLocale inputMethod insecure int_bwidth intensityStyles
918 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1108 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
919 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2 1109 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
920 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1110 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
921 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1111 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
922 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1112 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
923 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1113 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
924 shade term_name title transparent transparent_all tripleclickwords 1114 secondaryScreen secondaryScroll selectstyle shade term_name title
925 utmpInhibit visualBell 1115 transient_for transparent transparent_all tripleclickwords utmpInhibit
1116 visualBell
926 1117
927=cut 1118=cut
928 1119
929sub resource($$;$) { 1120sub resource($$;$) {
930 my ($self, $name) = (shift, shift); 1121 my ($self, $name) = (shift, shift);
1104 1295
1105Normally 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
1106confused by changes in cursor position or scrolling. Its useful inside a 1297confused by changes in cursor position or scrolling. Its useful inside a
1107C<on_add_lines> hook, though. 1298C<on_add_lines> hook, though.
1108 1299
1300=item $term->scr_change_screen ($screen)
1301
1302Switch to given screen - 0 primary, 1 secondary.
1303
1109=item $term->cmd_parse ($octets) 1304=item $term->cmd_parse ($octets)
1110 1305
1111Similar 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
1112locale-specific encoding of the terminal and can contain command sequences 1307locale-specific encoding of the terminal and can contain command sequences
1113(escape codes) that will be interpreted. 1308(escape codes) that will be interpreted.
1123Replaces 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
1124be 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
1125description of C<< urxvt::timer->events >>. Make sure to always restore 1320description of C<< urxvt::timer->events >>. Make sure to always restore
1126the previous value. 1321the previous value.
1127 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
1128=item $windowid = $term->parent 1328=item $windowid = $term->parent
1129 1329
1130Return the window id of the toplevel window. 1330Return the window id of the toplevel window.
1131 1331
1132=item $windowid = $term->vt 1332=item $windowid = $term->vt
1133 1333
1134Return the window id of the terminal window. 1334Return the window id of the terminal window.
1135 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
1136=item $window_width = $term->width 1343=item $window_width = $term->width
1137 1344
1138=item $window_height = $term->height 1345=item $window_height = $term->height
1139 1346
1140=item $font_width = $term->fwidth 1347=item $font_width = $term->fwidth
1153 1360
1154=item $max_scrollback = $term->saveLines 1361=item $max_scrollback = $term->saveLines
1155 1362
1156=item $nrow_plus_saveLines = $term->total_rows 1363=item $nrow_plus_saveLines = $term->total_rows
1157 1364
1158=item $lines_in_scrollback = $term->nsaved 1365=item $topmost_scrollback_row = $term->top_row
1159 1366
1160Return various integers describing terminal characteristics. 1367Return various integers describing terminal characteristics.
1161 1368
1162=item $x_display = $term->display_id 1369=item $x_display = $term->display_id
1163 1370
1189=item $modifiermask = $term->ModNumLockMask 1396=item $modifiermask = $term->ModNumLockMask
1190 1397
1191Return the modifier masks corresponding to the "ISO Level 3 Shift" (often 1398Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1192AltGr), 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.
1193 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
1194=item $view_start = $term->view_start ([$newvalue]) 1409=item $view_start = $term->view_start ([$newvalue])
1195 1410
1196Returns the negative row number of the topmost line. Minimum value is 1411Returns the row number of the topmost displayed line. Maximum value is
1197C<0>, which displays the normal terminal contents. Larger values scroll 1412C<0>, which displays the normal terminal contents. Lower values scroll
1198this many lines into the scrollback buffer. 1413this many lines into the scrollback buffer.
1199 1414
1200=item $term->want_refresh 1415=item $term->want_refresh
1201 1416
1202Requests a screen refresh. At the next opportunity, rxvt-unicode will 1417Requests a screen refresh. At the next opportunity, rxvt-unicode will
1217line, starting at column C<$start_col> (default C<0>), which is useful 1432line, starting at column C<$start_col> (default C<0>), which is useful
1218to replace only parts of a line. The font index in the rendition will 1433to replace only parts of a line. The font index in the rendition will
1219automatically be updated. 1434automatically be updated.
1220 1435
1221C<$text> is in a special encoding: tabs and wide characters that use more 1436C<$text> is in a special encoding: tabs and wide characters that use more
1222than one cell when displayed are padded with urxvt::NOCHAR characters 1437than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
1223(C<chr 65535>). Characters with combining characters and other characters 1438characters. Characters with combining characters and other characters that
1224that 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
1225characters in the private use area. 1440in the private use area.
1226 1441
1227You have to obey this encoding when changing text. The advantage is 1442You have to obey this encoding when changing text. The advantage is
1228that 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
1229characters. 1444characters.
1230 1445
1405 1620
1406Calls XUngrab for the most recent grab. Is called automatically on 1621Calls 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 1622evaluation errors, as it is better to lose the grab in the error case as
1408the session. 1623the session.
1409 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
1410=back 1655=back
1411 1656
1412=cut 1657=cut
1413 1658
1414package urxvt::popup; 1659package urxvt::popup;
1515 my $env = $self->{term}->env; 1760 my $env = $self->{term}->env;
1516 # 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.
1517 delete $env->{LC_ALL}; 1762 delete $env->{LC_ALL};
1518 $env->{LC_CTYPE} = $self->{term}->locale; 1763 $env->{LC_CTYPE} = $self->{term}->locale;
1519 1764
1520 urxvt::term->new ($env, $self->{term}->resource ("name"), 1765 urxvt::term->new ($env, "popup",
1521 "--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",
1522 "--transient-for" => $self->{term}->parent, 1769 "--transient-for" => $self->{term}->parent,
1523 "-display" => $self->{term}->display_id, 1770 "-display" => $self->{term}->display_id,
1524 "-pe" => "urxvt-popup") 1771 "-pe" => "urxvt-popup")
1525 or die "unable to create popup window\n"; 1772 or die "unable to create popup window\n";
1526} 1773}
1531 delete $self->{term}{_destroy}{$self}; 1778 delete $self->{term}{_destroy}{$self};
1532 $self->{term}->ungrab; 1779 $self->{term}->ungrab;
1533} 1780}
1534 1781
1535=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__;
1536 1792
1537=head2 The C<urxvt::timer> Class 1793=head2 The C<urxvt::timer> Class
1538 1794
1539This class implements timer watchers/events. Time is represented as a 1795This class implements timer watchers/events. Time is represented as a
1540fractional number of seconds since the epoch. Example: 1796fractional number of seconds since the epoch. Example:
1578Start the timer. 1834Start the timer.
1579 1835
1580=item $timer = $timer->start ($tstamp) 1836=item $timer = $timer->start ($tstamp)
1581 1837
1582Set 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>.
1583 1843
1584=item $timer = $timer->stop 1844=item $timer = $timer->stop
1585 1845
1586Stop the timer. 1846Stop the timer.
1587 1847
1634 1894
1635Stop watching for events on the given filehandle. 1895Stop watching for events on the given filehandle.
1636 1896
1637=back 1897=back
1638 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
1639=head1 ENVIRONMENT 1960=head1 ENVIRONMENT
1640 1961
1641=head2 URXVT_PERL_VERBOSITY 1962=head2 URXVT_PERL_VERBOSITY
1642 1963
1643This 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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