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Revision 1.30 by root, Wed Jan 4 05:35:34 2006 UTC vs.
Revision 1.85 by root, Thu Jan 12 03:32:56 2006 UTC

17 17
18 @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test 18 @@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
19 19
20=head1 DESCRIPTION 20=head1 DESCRIPTION
21 21
22Everytime a terminal object gets created, scripts specified via the 22Everytime a terminal object gets created, extension scripts specified via
23C<perl> resource are loaded and associated with it. 23the C<perl> resource are loaded and associated with it.
24 24
25Scripts are compiled in a 'use strict' and 'use utf8' environment, and 25Scripts are compiled in a 'use strict' and 'use utf8' environment, and
26thus must be encoded as UTF-8. 26thus must be encoded as UTF-8.
27 27
28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where 28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
29scripts will be shared (but not enabled) for all terminals. 29scripts will be shared (but not enabled) for all terminals.
30 30
31=head2 Prepackaged Extensions 31=head1 PREPACKAGED EXTENSIONS
32 32
33This section describes the extensiosn delivered with this version. You can 33This section describes the extensions delivered with this release. You can
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 39
40=over 4 40=over 4
41 41
42=item selection 42=item selection (enabled by default)
43 43
44Intelligent selection. This extension tries to be more intelligent when 44(More) intelligent selection. This extension tries to be more intelligent
45the user extends selections (double-click). Right now, it tries to select 45when the user extends selections (double-click). Right now, it tries to
46urls and complete shell-quoted arguments, which is very convenient, too, 46select urls and complete shell-quoted arguments, which is very convenient,
47if your F<ls> supports C<--quoting-style=shell>. 47too, if your F<ls> supports C<--quoting-style=shell>.
48 48
49It also offers the following bindable event: 49It also offers the following bindable keyboard command:
50 50
51=over 4 51=over 4
52 52
53=item rot13 53=item rot13
54 54
56 56
57 URxvt.keysym.C-M-r: perl:selection:rot13 57 URxvt.keysym.C-M-r: perl:selection:rot13
58 58
59=back 59=back
60 60
61=item option-popup (enabled by default)
62
63Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
64runtime.
65
66=item selection-popup (enabled by default)
67
68Binds a popup menu to Ctrl-Button3 that lets you convert the selection
69text into various other formats/action (such as uri unescaping, perl
70evalution, web-browser starting etc.), depending on content.
71
72=item searchable-scrollback<hotkey> (enabled by default)
73
74Adds regex search functionality to the scrollback buffer, triggered
75by a hotkey (default: C<M-s>). When in search mode, normal terminal
76input/output is suspended.
77
78C</> starts an incremental regex search, C<n> searches further, C<p> or
79C<N> jump to the previous match, C<G> jumps to the bottom and clears the
80history, C<enter> leaves search mode at the current position and C<escape>
81returns to the original position.
82
61=item digital-clock 83=item digital-clock
62 84
63Displays a digital clock using the built-in overlay. 85Displays a digital clock using the built-in overlay.
86
87=item mark-urls
88
89Uses per-line display filtering (C<on_line_update>) to underline urls and
90make them clickable. When middle-clicked, the program specified in the
91resource C<urlLauncher> (default C<x-www-browser>) will be started.
92
93=item block-graphics-to-ascii
94
95A not very useful example of filtering all text output to the terminal,
96by replacing all line-drawing characters (U+2500 .. U+259F) by a
97similar-looking ascii character.
64 98
65=item example-refresh-hooks 99=item example-refresh-hooks
66 100
67Displays a very simple digital clock in the upper right corner of the 101Displays a very simple digital clock in the upper right corner of the
68window. Illustrates overwriting the refresh callbacks to create your own 102window. Illustrates overwriting the refresh callbacks to create your own
69overlays or changes. 103overlays or changes.
70 104
71=back 105=back
106
107=head1 API DOCUMENTATION
72 108
73=head2 General API Considerations 109=head2 General API Considerations
74 110
75All objects (such as terminals, time watchers etc.) are typical 111All objects (such as terminals, time watchers etc.) are typical
76reference-to-hash objects. The hash can be used to store anything you 112reference-to-hash objects. The hash can be used to store anything you
81When objects are destroyed on the C++ side, the perl object hashes are 117When objects are destroyed on the C++ side, the perl object hashes are
82emptied, so its best to store related objects such as time watchers and 118emptied, so its best to store related objects such as time watchers and
83the like inside the terminal object so they get destroyed as soon as the 119the like inside the terminal object so they get destroyed as soon as the
84terminal is destroyed. 120terminal is destroyed.
85 121
122Argument names also often indicate the type of a parameter. Here are some
123hints on what they mean:
124
125=over 4
126
127=item $text
128
129Rxvt-unicodes special way of encoding text, where one "unicode" character
130always represents one screen cell. See L<ROW_t> for a discussion of this format.
131
132=item $string
133
134A perl text string, with an emphasis on I<text>. It can store all unicode
135characters and is to be distinguished with text encoded in a specific
136encoding (often locale-specific) and binary data.
137
138=item $octets
139
140Either binary data or - more common - a text string encoded in a
141locale-specific way.
142
143=back
144
145=head2 Extension Objects
146
147Very perl extension is a perl class. A separate perl object is created
148for each terminal and each extension and passed as the first parameter to
149hooks. So extensions can use their C<$self> object without having to think
150about other extensions, with the exception of methods and members that
151begin with an underscore character C<_>: these are reserved for internal
152use.
153
154Although it isn't a C<urxvt::term> object, you can call all methods of the
155C<urxvt::term> class on this object.
156
157It has the following methods and data members:
158
159=over 4
160
161=item $urxvt_term = $self->{term}
162
163Returns the C<urxvt::term> object associated with this instance of the
164extension. This member I<must not> be changed in any way.
165
166=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
167
168Dynamically enable the given hooks (named without the C<on_> prefix) for
169this extension, replacing any previous hook. This is useful when you want
170to overwrite time-critical hooks only temporarily.
171
172=item $self->disable ($hook_name[, $hook_name..])
173
174Dynamically disable the given hooks.
175
176=back
177
86=head2 Hooks 178=head2 Hooks
87 179
88The following subroutines can be declared in loaded scripts, and will be 180The following subroutines can be declared in extension files, and will be
89called whenever the relevant event happens. 181called whenever the relevant event happens.
90 182
91The first argument passed to them is an object private to each terminal 183The first argument passed to them is an extension oject as described in
92and extension package. You can call all C<urxvt::term> methods on it, but 184the in the C<Extension Objects> section.
93its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
94object that is shared between all packages is stored in the C<term>
95member.
96 185
97All of them must return a boolean value. If it is true, then the event 186B<All> of these hooks must return a boolean value. If it is true, then the
98counts as being I<consumed>, and the invocation of other hooks is skipped, 187event counts as being I<consumed>, and the invocation of other hooks is
99and the relevant action might not be carried out by the C++ code. 188skipped, and the relevant action might not be carried out by the C++ code.
100 189
101When in doubt, return a false value (preferably C<()>). 190I<< When in doubt, return a false value (preferably C<()>). >>
102 191
103=over 4 192=over 4
104 193
105=item on_init $term 194=item on_init $term
106 195
107Called after a new terminal object has been initialized, but before 196Called after a new terminal object has been initialized, but before
108windows are created or the command gets run. 197windows are created or the command gets run. Most methods are unsafe to
198call or deliver senseless data, as terminal size and other characteristics
199have not yet been determined. You can safely query and change resources,
200though.
109 201
110=item on_reset $term 202=item on_reset $term
111 203
112Called after the screen is "reset" for any reason, such as resizing or 204Called after the screen is "reset" for any reason, such as resizing or
113control sequences. Here is where you can react on changes to size-related 205control sequences. Here is where you can react on changes to size-related
138=item on_sel_extend $term 230=item on_sel_extend $term
139 231
140Called whenever the user tries to extend the selection (e.g. with a double 232Called whenever the user tries to extend the selection (e.g. with a double
141click) and is either supposed to return false (normal operation), or 233click) and is either supposed to return false (normal operation), or
142should extend the selection itelf and return true to suppress the built-in 234should extend the selection itelf and return true to suppress the built-in
143processing. 235processing. This can happen multiple times, as long as the callback
236returns true, it will be called on every further click by the user and is
237supposed to enlarge the selection more and more, if possible.
144 238
145See the F<selection> example extension. 239See the F<selection> example extension.
146
147=item on_focus_in $term
148
149Called whenever the window gets the keyboard focus, before urxvt does
150focus in processing.
151
152=item on_focus_out $term
153
154Called wheneever the window loses keyboard focus, before urxvt does focus
155out processing.
156 240
157=item on_view_change $term, $offset 241=item on_view_change $term, $offset
158 242
159Called whenever the view offset changes, i..e the user or program 243Called whenever the view offset changes, i..e the user or program
160scrolls. Offset C<0> means display the normal terminal, positive values 244scrolls. Offset C<0> means display the normal terminal, positive values
167than the scroll back buffer or the terminal. 251than the scroll back buffer or the terminal.
168 252
169It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 253It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
170$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total 254$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
171number of lines that will be in the scrollback buffer. 255number of lines that will be in the scrollback buffer.
172
173=item on_tty_activity $term *NYI*
174
175Called whenever the program(s) running in the urxvt window send output.
176 256
177=item on_osc_seq $term, $string 257=item on_osc_seq $term, $string
178 258
179Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = 259Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
180operating system command) is processed. Cursor position and other state 260operating system command) is processed. Cursor position and other state
185 265
186Be careful not ever to trust (in a security sense) the data you receive, 266Be careful not ever to trust (in a security sense) the data you receive,
187as its source can not easily be controleld (e-mail content, messages from 267as its source can not easily be controleld (e-mail content, messages from
188other users on the same system etc.). 268other users on the same system etc.).
189 269
270=item on_add_lines $term, $string
271
272Called whenever text is about to be output, with the text as argument. You
273can filter/change and output the text yourself by returning a true value
274and calling C<< $term->scr_add_lines >> yourself. Please note that this
275might be very slow, however, as your hook is called for B<all> text being
276output.
277
278=item on_tt_write $term, $octets
279
280Called whenever some data is written to the tty/pty and can be used to
281suppress or filter tty input.
282
283=item on_line_update $term, $row
284
285Called whenever a line was updated or changed. Can be used to filter
286screen output (e.g. underline urls or other useless stuff). Only lines
287that are being shown will be filtered, and, due to performance reasons,
288not always immediately.
289
290The row number is always the topmost row of the line if the line spans
291multiple rows.
292
293Please note that, if you change the line, then the hook might get called
294later with the already-modified line (e.g. if unrelated parts change), so
295you cannot just toggle rendition bits, but only set them.
296
190=item on_refresh_begin $term 297=item on_refresh_begin $term
191 298
192Called just before the screen gets redrawn. Can be used for overlay 299Called just before the screen gets redrawn. Can be used for overlay
193or similar effects by modify terminal contents in refresh_begin, and 300or similar effects by modify terminal contents in refresh_begin, and
194restoring them in refresh_end. The built-in overlay and selection display 301restoring them in refresh_end. The built-in overlay and selection display
202 309
203Called whenever the user presses a key combination that has a 310Called whenever the user presses a key combination that has a
204C<perl:string> action bound to it (see description of the B<keysym> 311C<perl:string> action bound to it (see description of the B<keysym>
205resource in the @@RXVT_NAME@@(1) manpage). 312resource in the @@RXVT_NAME@@(1) manpage).
206 313
314=item on_focus_in $term
315
316Called whenever the window gets the keyboard focus, before rxvt-unicode
317does focus in processing.
318
319=item on_focus_out $term
320
321Called wheneever the window loses keyboard focus, before rxvt-unicode does
322focus out processing.
323
324=item on_key_press $term, $event, $keysym, $octets
325
326=item on_key_release $term, $event, $keysym
327
328=item on_button_press $term, $event
329
330=item on_button_release $term, $event
331
332=item on_motion_notify $term, $event
333
334=item on_map_notify $term, $event
335
336=item on_unmap_notify $term, $event
337
338Called whenever the corresponding X event is received for the terminal If
339the hook returns true, then the even will be ignored by rxvt-unicode.
340
341The event is a hash with most values as named by Xlib (see the XEvent
342manpage), with the additional members C<row> and C<col>, which are the row
343and column under the mouse cursor.
344
345C<on_key_press> additionally receives the string rxvt-unicode would
346output, if any, in locale-specific encoding.
347
348subwindow.
349
207=back 350=back
208 351
352=cut
353
354package urxvt;
355
356use utf8;
357use strict;
358use Carp ();
359use Scalar::Util ();
360use List::Util ();
361
362our $VERSION = 1;
363our $TERM;
364our @HOOKNAME;
365our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
366our %OPTION;
367
368our $LIBDIR;
369our $RESNAME;
370our $RESCLASS;
371our $RXVTNAME;
372
209=head2 Variables in the C<urxvt> Package 373=head2 Variables in the C<urxvt> Package
210 374
211=over 4 375=over 4
212 376
377=item $urxvt::LIBDIR
378
379The rxvt-unicode library directory, where, among other things, the perl
380modules and scripts are stored.
381
382=item $urxvt::RESCLASS, $urxvt::RESCLASS
383
384The resource class and name rxvt-unicode uses to look up X resources.
385
386=item $urxvt::RXVTNAME
387
388The basename of the installed binaries, usually C<urxvt>.
389
213=item $urxvt::TERM 390=item $urxvt::TERM
214 391
215The current terminal. Whenever a callback/Hook is bein executed, this 392The current terminal. This variable stores the current C<urxvt::term>
216variable stores the current C<urxvt::term> object. 393object, whenever a callback/hook is executing.
217 394
218=back 395=back
219 396
220=head2 Functions in the C<urxvt> Package 397=head2 Functions in the C<urxvt> Package
221 398
234that calls this function. 411that calls this function.
235 412
236Using this function has the advantage that its output ends up in the 413Using this function has the advantage that its output ends up in the
237correct place, e.g. on stderr of the connecting urxvtc client. 414correct place, e.g. on stderr of the connecting urxvtc client.
238 415
416Messages have a size limit of 1023 bytes currently.
417
418=item $is_safe = urxvt::safe
419
420Returns true when it is safe to do potentially unsafe things, such as
421evaluating perl code specified by the user. This is true when urxvt was
422started setuid or setgid.
423
239=item $time = urxvt::NOW 424=item $time = urxvt::NOW
240 425
241Returns the "current time" (as per the event loop). 426Returns the "current time" (as per the event loop).
427
428=item urxvt::CurrentTime
429
430=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
431Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
432Button4Mask, Button5Mask, AnyModifier
433
434Various constants for use in X calls and event processing.
242 435
243=back 436=back
244 437
245=head2 RENDITION 438=head2 RENDITION
246 439
273 466
274=item $background = urxvt::GET_BASEBG $rend 467=item $background = urxvt::GET_BASEBG $rend
275 468
276Return the foreground/background colour index, respectively. 469Return the foreground/background colour index, respectively.
277 470
278=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) 471=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
279 472
280=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 473=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
281 474
282Replace the foreground/background colour in the rendition mask with the 475Replace the foreground/background colour in the rendition mask with the
283specified one. 476specified one.
284 477
285=item $value = urxvt::GET_CUSTOM ($rend) 478=item $value = urxvt::GET_CUSTOM $rend
286 479
287Return the "custom" value: Every rendition has 5 bits for use by 480Return the "custom" value: Every rendition has 5 bits for use by
288extensions. They can be set and changed as you like and are initially 481extensions. They can be set and changed as you like and are initially
289zero. 482zero.
290 483
291=item $rend = urxvt::SET_CUSTOM ($rend, $new_value) 484=item $rend = urxvt::SET_CUSTOM $rend, $new_value
292 485
293Change the custom value. 486Change the custom value.
294 487
295=back 488=back
296 489
297=cut 490=cut
298
299package urxvt;
300
301use strict;
302use Scalar::Util ();
303
304our $TERM;
305our @HOOKNAME;
306our $LIBDIR;
307 491
308BEGIN { 492BEGIN {
309 urxvt->bootstrap; 493 urxvt->bootstrap;
310 494
311 # overwrite perl's warn 495 # overwrite perl's warn
313 my $msg = join "", @_; 497 my $msg = join "", @_;
314 $msg .= "\n" 498 $msg .= "\n"
315 unless $msg =~ /\n$/; 499 unless $msg =~ /\n$/;
316 urxvt::warn ($msg); 500 urxvt::warn ($msg);
317 }; 501 };
502
503 # %ENV is the original startup environment
504 delete $ENV{IFS};
505 delete $ENV{CDPATH};
506 delete $ENV{BASH_ENV};
507 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
318} 508}
319 509
320my @hook_count; 510my @hook_count;
321my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 511my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
322 512
323sub verbose { 513sub verbose {
324 my ($level, $msg) = @_; 514 my ($level, $msg) = @_;
325 warn "$msg\n" if $level <= $verbosity; 515 warn "$msg\n" if $level <= $verbosity;
326} 516}
327 517
328# find on_xxx subs in the package and register them 518my $extension_pkg = "extension0000";
329# as hooks 519my %extension_pkg;
330sub register_package($) {
331 my ($pkg) = @_;
332
333 for my $htype (0.. $#HOOKNAME) {
334 my $name = $HOOKNAME[$htype];
335
336 my $ref = $pkg->can ("on_" . lc $name)
337 or next;
338
339 $TERM->{_hook}[$htype]{$pkg} = $ref;
340 $hook_count[$htype]++
341 or set_should_invoke $htype, 1;
342 }
343}
344
345my $script_pkg = "script0000";
346my %script_pkg;
347 520
348# load a single script into its own package, once only 521# load a single script into its own package, once only
349sub script_package($) { 522sub extension_package($) {
350 my ($path) = @_; 523 my ($path) = @_;
351 524
352 $script_pkg{$path} ||= do { 525 $extension_pkg{$path} ||= do {
353 my $pkg = "urxvt::" . ($script_pkg++); 526 my $pkg = "urxvt::" . ($extension_pkg++);
354 527
355 verbose 3, "loading script '$path' into package '$pkg'"; 528 verbose 3, "loading extension '$path' into package '$pkg'";
356 529
357 open my $fh, "<:raw", $path 530 open my $fh, "<:raw", $path
358 or die "$path: $!"; 531 or die "$path: $!";
359 532
533 my $source = untaint
360 my $source = "package $pkg; use strict; use utf8;\n" 534 "package $pkg; use strict; use utf8;\n"
535 . "use base urxvt::term::extension::;\n"
361 . "#line 1 \"$path\"\n{\n" 536 . "#line 1 \"$path\"\n{\n"
362 . (do { local $/; <$fh> }) 537 . (do { local $/; <$fh> })
363 . "\n};\n1"; 538 . "\n};\n1";
364 539
540 eval $source
365 eval $source or die "$path: $@"; 541 or die "$path: $@";
366 542
367 $pkg 543 $pkg
368 } 544 }
369} 545}
546
547our $retval; # return value for urxvt
370 548
371# called by the rxvt core 549# called by the rxvt core
372sub invoke { 550sub invoke {
373 local $TERM = shift; 551 local $TERM = shift;
374 my $htype = shift; 552 my $htype = shift;
375 553
376 if ($htype == 0) { # INIT 554 if ($htype == 0) { # INIT
377 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 555 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
556
557 my %ext_arg;
378 558
379 for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) { 559 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
560 if ($_ eq "default") {
561 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
562 } elsif (/^-(.*)$/) {
563 delete $ext_arg{$1};
564 } elsif (/^([^<]+)<(.*)>$/) {
565 push @{ $ext_arg{$1} }, $2;
566 } else {
567 $ext_arg{$_} ||= [];
568 }
569 }
570
571 while (my ($ext, $argv) = each %ext_arg) {
380 my @files = grep -f $_, map "$_/$ext", @dirs; 572 my @files = grep -f $_, map "$_/$ext", @dirs;
381 573
382 if (@files) { 574 if (@files) {
383 register_package script_package $files[0]; 575 $TERM->register_package (extension_package $files[0], $argv);
384 } else { 576 } else {
385 warn "perl extension '$ext' not found in perl library search path\n"; 577 warn "perl extension '$ext' not found in perl library search path\n";
386 } 578 }
387 } 579 }
388 580
581 eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
582 warn $@ if $@;
583 }
584
585 $retval = undef;
586
587 if (my $cb = $TERM->{_hook}[$htype]) {
588 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
589 if $verbosity >= 10;
590
591 keys %$cb;
592
593 while (my ($pkg, $cb) = each %$cb) {
594 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }
595 and last;
596
597 if ($@) {
598 $TERM->ungrab; # better to lose the grab than the session
599 warn $@;
600 }
601 }
602
603 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
604 if $verbosity >= 11;
605 }
606
389 } elsif ($htype == 1) { # DESTROY 607 if ($htype == 1) { # DESTROY
390 if (my $hook = $TERM->{_hook}) { 608 if (my $hook = delete $TERM->{_hook}) {
391 for my $htype (0..$#$hook) { 609 for my $htype (0..$#$hook) {
392 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 610 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
393 or set_should_invoke $htype, 0; 611 or set_should_invoke $htype, 0;
394 } 612 }
395 } 613 }
614
615 # clear package objects
616 %$_ = () for values %{ $TERM->{_pkg} };
617
618 # clear package
619 %$TERM = ();
396 } 620 }
397 621
398 my $cb = $TERM->{_hook}[$htype] 622 $retval
399 or return; 623}
400 624
401 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")" 625sub exec_async(@) {
402 if $verbosity >= 10; 626 my $pid = fork;
403 627
404 keys %$cb; 628 return
629 if !defined $pid or $pid;
405 630
631 %ENV = %{ $TERM->env };
632
633 exec @_;
634 _exit 255;
635}
636
637# urxvt::term::extension
638
639package urxvt::term::extension;
640
641sub enable {
642 my ($self, %hook) = @_;
643 my $pkg = $self->{_pkg};
644
406 while (my ($pkg, $cb) = each %$cb) { 645 while (my ($name, $cb) = each %hook) {
407 return 1 646 my $htype = $HOOKTYPE{uc $name};
408 if $cb->( 647 defined $htype
409 $TERM->{$pkg} ||= do { 648 or Carp::croak "unsupported hook type '$name'";
410 my $proxy = bless { }, urxvt::term::proxy::; 649
411 Scalar::Util::weaken ($proxy->{term} = $TERM); 650 unless (exists $self->{term}{_hook}[$htype]{$pkg}) {
412 $proxy 651 $hook_count[$htype]++
413 }, 652 or urxvt::set_should_invoke $htype, 1;
414 @_, 653 }
415 ); 654
655 $self->{term}{_hook}[$htype]{$pkg} = $cb;
416 } 656 }
657}
417 658
659sub disable {
660 my ($self, @hook) = @_;
661 my $pkg = $self->{_pkg};
662
663 for my $name (@hook) {
664 my $htype = $HOOKTYPE{uc $name};
665 defined $htype
666 or Carp::croak "unsupported hook type '$name'";
667
668 if (delete $self->{term}{_hook}[$htype]{$pkg}) {
669 --$hook_count[$htype]
670 or urxvt::set_should_invoke $htype, 0;
671 }
418 0 672 }
419} 673}
420 674
421sub urxvt::term::proxy::AUTOLOAD { 675our $AUTOLOAD;
422 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 676
677sub AUTOLOAD {
678 $AUTOLOAD =~ /:([^:]+)$/
423 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 679 or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
424 680
425 eval qq{ 681 eval qq{
426 sub $urxvt::term::proxy::AUTOLOAD { 682 sub $AUTOLOAD {
427 my \$proxy = shift; 683 my \$proxy = shift;
428 \$proxy->{term}->$1 (\@_) 684 \$proxy->{term}->$1 (\@_)
429 } 685 }
430 1 686 1
431 } or die "FATAL: unable to compile method forwarder: $@"; 687 } or die "FATAL: unable to compile method forwarder: $@";
432 688
433 goto &$urxvt::term::proxy::AUTOLOAD; 689 goto &$AUTOLOAD;
434} 690}
691
692sub DESTROY {
693 # nop
694}
695
696# urxvt::destroy_hook
697
698sub urxvt::destroy_hook::DESTROY {
699 ${$_[0]}->();
700}
701
702sub urxvt::destroy_hook(&) {
703 bless \shift, urxvt::destroy_hook::
704}
705
706package urxvt::anyevent;
707
708=head2 The C<urxvt::anyevent> Class
709
710The sole purpose of this class is to deliver an interface to the
711C<AnyEvent> module - any module using it will work inside urxvt without
712further programming. The only exception is that you cannot wait on
713condition variables, but non-blocking condvar use is ok. What this means
714is that you cannot use blocking APIs, but the non-blocking variant should
715work.
716
717=cut
718
719our $VERSION = 1;
720
721$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
722push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
723
724sub timer {
725 my ($class, %arg) = @_;
726
727 my $cb = $arg{cb};
728
729 urxvt::timer
730 ->new
731 ->start (urxvt::NOW + $arg{after})
732 ->cb (sub {
733 $_[0]->stop; # need to cancel manually
734 $cb->();
735 })
736}
737
738sub io {
739 my ($class, %arg) = @_;
740
741 my $cb = $arg{cb};
742
743 bless [$arg{fh}, urxvt::iow
744 ->new
745 ->fd (fileno $arg{fh})
746 ->events (($arg{poll} =~ /r/ ? 1 : 0)
747 | ($arg{poll} =~ /w/ ? 2 : 0))
748 ->start
749 ->cb (sub {
750 $cb->(($_[1] & 1 ? 'r' : '')
751 . ($_[1] & 2 ? 'w' : ''));
752 })],
753 urxvt::anyevent::
754}
755
756sub DESTROY {
757 $_[0][1]->stop;
758}
759
760sub condvar {
761 bless \my $flag, urxvt::anyevent::condvar::
762}
763
764sub urxvt::anyevent::condvar::broadcast {
765 ${$_[0]}++;
766}
767
768sub urxvt::anyevent::condvar::wait {
769 unless (${$_[0]}) {
770 Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
771 }
772}
773
774package urxvt::term;
435 775
436=head2 The C<urxvt::term> Class 776=head2 The C<urxvt::term> Class
437 777
438=over 4 778=over 4
779
780=cut
781
782# find on_xxx subs in the package and register them
783# as hooks
784sub register_package {
785 my ($self, $pkg, $argv) = @_;
786
787 my $proxy = bless {
788 _pkg => $pkg,
789 argv => $argv,
790 }, $pkg;
791 Scalar::Util::weaken ($proxy->{term} = $self);
792
793 $self->{_pkg}{$pkg} = $proxy;
794
795 for my $name (@HOOKNAME) {
796 if (my $ref = $pkg->can ("on_" . lc $name)) {
797 $proxy->enable ($name => $ref);
798 }
799 }
800}
801
802=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
803
804Creates a new terminal, very similar as if you had started it with system
805C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
806hash which defines the environment of the new terminal.
807
808Croaks (and probably outputs an error message) if the new instance
809couldn't be created. Returns C<undef> if the new instance didn't
810initialise perl, and the terminal object otherwise. The C<init> and
811C<start> hooks will be called during this call.
812
813=cut
814
815sub new {
816 my ($class, $env, @args) = @_;
817
818 _new ([ map "$_=$env->{$_}", keys %$env ], @args);
819}
820
821=item $term->destroy
822
823Destroy the terminal object (close the window, free resources
824etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
825watchers (timers, io watchers) are still active.
826
827=item $isset = $term->option ($optval[, $set])
828
829Returns true if the option specified by C<$optval> is enabled, and
830optionally change it. All option values are stored by name in the hash
831C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
832
833Here is a a likely non-exhaustive list of option names, please see the
834source file F</src/optinc.h> to see the actual list:
835
836 borderLess console cursorBlink cursorUnderline hold iconic insecure
837 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
838 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating
839 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer
840 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent
841 tripleclickwords utmpInhibit visualBell
439 842
440=item $value = $term->resource ($name[, $newval]) 843=item $value = $term->resource ($name[, $newval])
441 844
442Returns the current resource value associated with a given name and 845Returns the current resource value associated with a given name and
443optionally sets a new value. Setting values is most useful in the C<init> 846optionally sets a new value. Setting values is most useful in the C<init>
453 856
454Please note that resource strings will currently only be freed when the 857Please note that resource strings will currently only be freed when the
455terminal is destroyed, so changing options frequently will eat memory. 858terminal is destroyed, so changing options frequently will eat memory.
456 859
457Here is a a likely non-exhaustive list of resource names, not all of which 860Here is a a likely non-exhaustive list of resource names, not all of which
458are supported in every build, please see the source to see the actual 861are supported in every build, please see the source file F</src/rsinc.h>
459list: 862to see the actual list:
460 863
461 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 864 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
462 borderLess color cursorBlink cursorUnderline cutchars delete_key 865 borderLess color cursorBlink cursorUnderline cutchars delete_key
463 display_name embed ext_bwidth fade font geometry hold iconName 866 display_name embed ext_bwidth fade font geometry hold iconName
464 imFont imLocale inputMethod insecure int_bwidth intensityStyles 867 imFont imLocale inputMethod insecure int_bwidth intensityStyles
471 shade term_name title transparent transparent_all tripleclickwords 874 shade term_name title transparent transparent_all tripleclickwords
472 utmpInhibit visualBell 875 utmpInhibit visualBell
473 876
474=cut 877=cut
475 878
476sub urxvt::term::resource($$;$) { 879sub resource($$;$) {
477 my ($self, $name) = (shift, shift); 880 my ($self, $name) = (shift, shift);
478 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 881 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
479 goto &urxvt::term::_resource; 882 &urxvt::term::_resource
480} 883}
884
885=item $value = $term->x_resource ($pattern)
886
887Returns the X-Resource for the given pattern, excluding the program or
888class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
889same value as used by this instance of rxvt-unicode. Returns C<undef> if no
890resource with that pattern exists.
891
892This method should only be called during the C<on_start> hook, as there is
893only one resource database per display, and later invocations might return
894the wrong resources.
895
896=item $success = $term->parse_keysym ($keysym_spec, $command_string)
897
898Adds a keymap translation exactly as specified via a resource. See the
899C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
900
901=item $rend = $term->rstyle ([$new_rstyle])
902
903Return and optionally change the current rendition. Text that is output by
904the terminal application will use this style.
905
906=item ($row, $col) = $term->screen_cur ([$row, $col])
907
908Return the current coordinates of the text cursor position and optionally
909set it (which is usually bad as applications don't expect that).
481 910
482=item ($row, $col) = $term->selection_mark ([$row, $col]) 911=item ($row, $col) = $term->selection_mark ([$row, $col])
483 912
484=item ($row, $col) = $term->selection_beg ([$row, $col]) 913=item ($row, $col) = $term->selection_beg ([$row, $col])
485 914
495 924
496=item $oldtext = $term->selection ([$newtext]) 925=item $oldtext = $term->selection ([$newtext])
497 926
498Return the current selection text and optionally replace it by C<$newtext>. 927Return the current selection text and optionally replace it by C<$newtext>.
499 928
500#=item $term->overlay ($x, $y, $text) 929=item $term->overlay_simple ($x, $y, $text)
501# 930
502#Create a simple multi-line overlay box. See the next method for details. 931Create a simple multi-line overlay box. See the next method for details.
503# 932
504#=cut 933=cut
505 934
506sub urxvt::term::scr_overlay { 935sub overlay_simple {
507die;
508 my ($self, $x, $y, $text) = @_; 936 my ($self, $x, $y, $text) = @_;
509 937
510 my @lines = split /\n/, $text; 938 my @lines = split /\n/, $text;
511 939
512 my $w = 0; 940 my $w = List::Util::max map $self->strwidth ($_), @lines;
513 for (map $self->strwidth ($_), @lines) {
514 $w = $_ if $w < $_;
515 }
516 941
517 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 942 my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
518 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 943 $overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
944
945 $overlay
519} 946}
520 947
521=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 948=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
522 949
523Create a new (empty) overlay at the given position with the given 950Create a new (empty) overlay at the given position with the given
551 978
552If hidden, display the overlay again. 979If hidden, display the overlay again.
553 980
554=back 981=back
555 982
983=item $popup = $term->popup ($event)
984
985Creates a new C<urxvt::popup> object that implements a popup menu. The
986C<$event> I<must> be the event causing the menu to pop up (a button event,
987currently).
988
989=cut
990
991sub popup {
992 my ($self, $event) = @_;
993
994 $self->grab ($event->{time}, 1)
995 or return;
996
997 my $popup = bless {
998 term => $self,
999 event => $event,
1000 }, urxvt::popup::;
1001
1002 Scalar::Util::weaken $popup->{term};
1003
1004 $self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
1005 Scalar::Util::weaken $self->{_destroy}{$popup};
1006
1007 $popup
1008}
1009
556=item $cellwidth = $term->strwidth $string 1010=item $cellwidth = $term->strwidth ($string)
557 1011
558Returns the number of screen-cells this string would need. Correctly 1012Returns the number of screen-cells this string would need. Correctly
559accounts for wide and combining characters. 1013accounts for wide and combining characters.
560 1014
561=item $octets = $term->locale_encode $string 1015=item $octets = $term->locale_encode ($string)
562 1016
563Convert the given text string into the corresponding locale encoding. 1017Convert the given text string into the corresponding locale encoding.
564 1018
565=item $string = $term->locale_decode $octets 1019=item $string = $term->locale_decode ($octets)
566 1020
567Convert the given locale-encoded octets into a perl string. 1021Convert the given locale-encoded octets into a perl string.
1022
1023=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
1024
1025XORs the rendition values in the given span with the provided value
1026(default: C<RS_RVid>). Useful in refresh hooks to provide effects similar
1027to the selection.
1028
1029=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
1030
1031Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1032whitespace will additionally be xored with the C<$rstyle2>, which defaults
1033to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1034it instead.
1035
1036=item $term->scr_bell
1037
1038Ring the bell!
1039
1040=item $term->scr_add_lines ($string)
1041
1042Write the given text string to the screen, as if output by the application
1043running inside the terminal. It may not contain command sequences (escape
1044codes), but is free to use line feeds, carriage returns and tabs. The
1045string is a normal text string, not in locale-dependent encoding.
1046
1047Normally its not a good idea to use this function, as programs might be
1048confused by changes in cursor position or scrolling. Its useful inside a
1049C<on_add_lines> hook, though.
1050
1051=item $term->cmd_parse ($octets)
1052
1053Similar to C<scr_add_lines>, but the argument must be in the
1054locale-specific encoding of the terminal and can contain command sequences
1055(escape codes) that will be interpreted.
568 1056
569=item $term->tt_write ($octets) 1057=item $term->tt_write ($octets)
570 1058
571Write the octets given in C<$data> to the tty (i.e. as program input). To 1059Write the octets given in C<$data> to the tty (i.e. as program input). To
572pass characters instead of octets, you should convert your strings first 1060pass characters instead of octets, you should convert your strings first
573to the locale-specific encoding using C<< $term->locale_encode >>. 1061to the locale-specific encoding using C<< $term->locale_encode >>.
574 1062
1063=item $old_events = $term->pty_ev_events ([$new_events])
1064
1065Replaces the event mask of the pty watcher by the given event mask. Can
1066be used to suppress input and output handling to the pty/tty. See the
1067description of C<< urxvt::timer->events >>. Make sure to always restore
1068the previous value.
1069
1070=item $windowid = $term->parent
1071
1072Return the window id of the toplevel window.
1073
1074=item $windowid = $term->vt
1075
1076Return the window id of the terminal window.
1077
1078=item $window_width = $term->width
1079
1080=item $window_height = $term->height
1081
1082=item $font_width = $term->fwidth
1083
1084=item $font_height = $term->fheight
1085
1086=item $font_ascent = $term->fbase
1087
575=item $nrow = $term->nrow 1088=item $terminal_rows = $term->nrow
576 1089
577=item $ncol = $term->ncol 1090=item $terminal_columns = $term->ncol
578 1091
579Return the number of rows/columns of the terminal window (i.e. as 1092=item $has_focus = $term->focus
580specified by C<-geometry>, excluding any scrollback).
581 1093
1094=item $is_mapped = $term->mapped
1095
1096=item $max_scrollback = $term->saveLines
1097
1098=item $nrow_plus_saveLines = $term->total_rows
1099
1100=item $lines_in_scrollback = $term->nsaved
1101
1102Return various integers describing terminal characteristics.
1103
1104=item $x_display = $term->display_id
1105
1106Return the DISPLAY used by rxvt-unicode.
1107
1108=item $lc_ctype = $term->locale
1109
1110Returns the LC_CTYPE category string used by this rxvt-unicode.
1111
582=item $nsaved = $term->nsaved 1112=item $env = $term->env
583 1113
584Returns the number of lines in the scrollback buffer. 1114Returns a copy of the environment in effect for the terminal as a hashref
1115similar to C<\%ENV>.
1116
1117=cut
1118
1119sub env {
1120 if (my $env = $_[0]->_env) {
1121 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
1122 } else {
1123 +{ %ENV }
1124 }
1125}
1126
1127=item $modifiermask = $term->ModLevel3Mask
1128
1129=item $modifiermask = $term->ModMetaMask
1130
1131=item $modifiermask = $term->ModNumLockMask
1132
1133Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1134AltGr), the meta key (often Alt) and the num lock key, if applicable.
585 1135
586=item $view_start = $term->view_start ([$newvalue]) 1136=item $view_start = $term->view_start ([$newvalue])
587 1137
588Returns the negative row number of the topmost line. Minimum value is 1138Returns the negative row number of the topmost line. Minimum value is
589C<0>, which displays the normal terminal contents. Larger values scroll 1139C<0>, which displays the normal terminal contents. Larger values scroll
652about the logical line that row C<$row_number> is part of. It supports the 1202about the logical line that row C<$row_number> is part of. It supports the
653following methods: 1203following methods:
654 1204
655=over 4 1205=over 4
656 1206
657=item $text = $line->t 1207=item $text = $line->t ([$new_text])
658 1208
659Returns the full text of the line, similar to C<ROW_t> 1209Returns or replaces the full text of the line, similar to C<ROW_t>
660 1210
661=item $rend = $line->r 1211=item $rend = $line->r ([$new_rend])
662 1212
663Returns the full rendition array of the line, similar to C<ROW_r> 1213Returns or replaces the full rendition array of the line, similar to C<ROW_r>
664 1214
665=item $length = $line->l 1215=item $length = $line->l
666 1216
667Returns the length of the line in cells, similar to C<ROW_l>. 1217Returns the length of the line in cells, similar to C<ROW_l>.
668 1218
673Return the row number of the first/last row of the line, respectively. 1223Return the row number of the first/last row of the line, respectively.
674 1224
675=item $offset = $line->offset_of ($row, $col) 1225=item $offset = $line->offset_of ($row, $col)
676 1226
677Returns the character offset of the given row|col pair within the logical 1227Returns the character offset of the given row|col pair within the logical
678line. 1228line. Works for rows outside the line, too, and returns corresponding
1229offsets outside the string.
679 1230
680=item ($row, $col) = $line->coord_of ($offset) 1231=item ($row, $col) = $line->coord_of ($offset)
681 1232
682Translates a string offset into terminal coordinates again. 1233Translates a string offset into terminal coordinates again.
683 1234
684=back 1235=back
685 1236
686=cut 1237=cut
687 1238
688sub urxvt::term::line { 1239sub line {
689 my ($self, $row) = @_; 1240 my ($self, $row) = @_;
690 1241
691 my $maxrow = $self->nrow - 1; 1242 my $maxrow = $self->nrow - 1;
692 1243
693 my ($beg, $end) = ($row, $row); 1244 my ($beg, $end) = ($row, $row);
697 1248
698 bless { 1249 bless {
699 term => $self, 1250 term => $self,
700 beg => $beg, 1251 beg => $beg,
701 end => $end, 1252 end => $end,
1253 ncol => $self->ncol,
702 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end), 1254 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
703 }, urxvt::line:: 1255 }, urxvt::line::
704} 1256}
705 1257
706sub urxvt::line::t { 1258sub urxvt::line::t {
707 my ($self) = @_; 1259 my ($self) = @_;
708 1260
1261 if (@_ > 1)
1262 {
1263 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
1264 for $self->{beg} .. $self->{end};
1265 }
1266
1267 defined wantarray &&
709 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}), 1268 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
710 0, $self->{len} 1269 0, $self->{len}
711} 1270}
712 1271
713sub urxvt::line::r { 1272sub urxvt::line::r {
714 my ($self) = @_; 1273 my ($self) = @_;
715 1274
1275 if (@_ > 1)
1276 {
1277 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
1278 for $self->{beg} .. $self->{end};
1279 }
1280
1281 if (defined wantarray) {
716 my $rend = [ 1282 my $rend = [
717 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end} 1283 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
718 ]; 1284 ];
719 $#$rend = $self->{len} - 1; 1285 $#$rend = $self->{len} - 1;
720 $rend 1286 return $rend;
1287 }
1288
1289 ()
721} 1290}
722 1291
723sub urxvt::line::beg { $_[0]{beg} } 1292sub urxvt::line::beg { $_[0]{beg} }
724sub urxvt::line::end { $_[0]{end} } 1293sub urxvt::line::end { $_[0]{end} }
725sub urxvt::line::l { $_[0]{len} } 1294sub urxvt::line::l { $_[0]{len} }
726 1295
727sub urxvt::line::offset_of { 1296sub urxvt::line::offset_of {
728 my ($self, $row, $col) = @_; 1297 my ($self, $row, $col) = @_;
729 1298
730 ($row - $self->{beg}) * $self->{term}->ncol + $col 1299 ($row - $self->{beg}) * $self->{ncol} + $col
731} 1300}
732 1301
733sub urxvt::line::coord_of { 1302sub urxvt::line::coord_of {
734 my ($self, $offset) = @_; 1303 my ($self, $offset) = @_;
735 1304
736 use integer; 1305 use integer;
737 1306
738 ( 1307 (
739 $offset / $self->{term}->ncol + $self->{beg}, 1308 $offset / $self->{ncol} + $self->{beg},
740 $offset % $self->{term}->ncol 1309 $offset % $self->{ncol}
741 ) 1310 )
742} 1311}
743 1312
744=item ($row, $col) = $line->coord_of ($offset)
745=item $text = $term->special_encode $string 1313=item $text = $term->special_encode $string
746 1314
747Converts a perl string into the special encoding used by rxvt-unicode, 1315Converts a perl string into the special encoding used by rxvt-unicode,
748where one character corresponds to one screen cell. See 1316where one character corresponds to one screen cell. See
749C<< $term->ROW_t >> for details. 1317C<< $term->ROW_t >> for details.
750 1318
751=item $string = $term->special_decode $text 1319=item $string = $term->special_decode $text
752 1320
753Converts rxvt-unicodes text reprsentation into a perl string. See 1321Converts rxvt-unicodes text reprsentation into a perl string. See
754C<< $term->ROW_t >> for details. 1322C<< $term->ROW_t >> for details.
1323
1324=item $success = $term->grab_button ($button, $modifiermask)
1325
1326Registers a synchronous button grab. See the XGrabButton manpage.
1327
1328=item $success = $term->grab ($eventtime[, $sync])
1329
1330Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1331synchronous (C<$sync> is true). Also remembers the grab timestampe.
1332
1333=item $term->allow_events_async
1334
1335Calls XAllowEvents with AsyncBoth for the most recent grab.
1336
1337=item $term->allow_events_sync
1338
1339Calls XAllowEvents with SyncBoth for the most recent grab.
1340
1341=item $term->allow_events_replay
1342
1343Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1344recent grab.
1345
1346=item $term->ungrab
1347
1348Calls XUngrab for the most recent grab. Is called automatically on
1349evaluation errors, as it is better to lose the grab in the error case as
1350the session.
1351
1352=back
1353
1354=cut
1355
1356package urxvt::popup;
1357
1358=head2 The C<urxvt::popup> Class
1359
1360=over 4
1361
1362=cut
1363
1364sub add_item {
1365 my ($self, $item) = @_;
1366
1367 $item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
1368 $item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
1369 $item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
1370
1371 $item->{render} ||= sub { $_[0]{text} };
1372
1373 push @{ $self->{item} }, $item;
1374}
1375
1376=item $popup->add_title ($title)
1377
1378Adds a non-clickable title to the popup.
1379
1380=cut
1381
1382sub add_title {
1383 my ($self, $title) = @_;
1384
1385 $self->add_item ({
1386 rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
1387 text => $title,
1388 activate => sub { },
1389 });
1390}
1391
1392=item $popup->add_separator ([$sepchr])
1393
1394Creates a separator, optionally using the character given as C<$sepchr>.
1395
1396=cut
1397
1398sub add_separator {
1399 my ($self, $sep) = @_;
1400
1401 $sep ||= "=";
1402
1403 $self->add_item ({
1404 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1405 text => "",
1406 render => sub { $sep x $self->{term}->ncol },
1407 activate => sub { },
1408 });
1409}
1410
1411=item $popup->add_button ($text, $cb)
1412
1413Adds a clickable button to the popup. C<$cb> is called whenever it is
1414selected.
1415
1416=cut
1417
1418sub add_button {
1419 my ($self, $text, $cb) = @_;
1420
1421 $self->add_item ({ type => "button", text => $text, activate => $cb});
1422}
1423
1424=item $popup->add_toggle ($text, $cb, $initial_value)
1425
1426Adds a toggle/checkbox item to the popup. Teh callback gets called
1427whenever it gets toggled, with a boolean indicating its value as its first
1428argument.
1429
1430=cut
1431
1432sub add_toggle {
1433 my ($self, $text, $cb, $value) = @_;
1434
1435 my $item; $item = {
1436 type => "button",
1437 text => " $text",
1438 value => $value,
1439 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1440 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1441 };
1442
1443 $self->add_item ($item);
1444}
1445
1446=item $popup->show
1447
1448Displays the popup (which is initially hidden).
1449
1450=cut
1451
1452sub show {
1453 my ($self) = @_;
1454
1455 local $urxvt::popup::self = $self;
1456
1457 my $env = $self->{term}->env;
1458 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1459 delete $env->{LC_ALL};
1460 $env->{LC_CTYPE} = $self->{term}->locale;
1461
1462 urxvt::term->new ($env, $self->{term}->resource ("name"),
1463 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,
1464 "--transient-for" => $self->{term}->parent,
1465 "-display" => $self->{term}->display_id,
1466 "-pe" => "urxvt-popup")
1467 or die "unable to create popup window\n";
1468}
1469
1470sub DESTROY {
1471 my ($self) = @_;
1472
1473 delete $self->{term}{_destroy}{$self};
1474 $self->{term}->ungrab;
1475}
755 1476
756=back 1477=back
757 1478
758=head2 The C<urxvt::timer> Class 1479=head2 The C<urxvt::timer> Class
759 1480
814 1535
815 $term->{socket} = ... 1536 $term->{socket} = ...
816 $term->{iow} = urxvt::iow 1537 $term->{iow} = urxvt::iow
817 ->new 1538 ->new
818 ->fd (fileno $term->{socket}) 1539 ->fd (fileno $term->{socket})
819 ->events (1) # wait for read data 1540 ->events (urxvt::EVENT_READ)
820 ->start 1541 ->start
821 ->cb (sub { 1542 ->cb (sub {
822 my ($iow, $revents) = @_; 1543 my ($iow, $revents) = @_;
823 # $revents must be 1 here, no need to check 1544 # $revents must be 1 here, no need to check
824 sysread $term->{socket}, my $buf, 8192 1545 sysread $term->{socket}, my $buf, 8192
841 1562
842Set the filedescriptor (not handle) to watch. 1563Set the filedescriptor (not handle) to watch.
843 1564
844=item $iow = $iow->events ($eventmask) 1565=item $iow = $iow->events ($eventmask)
845 1566
846Set the event mask to watch. Bit #0 (value C<1>) enables watching for read 1567Set the event mask to watch. The only allowed values are
847data, Bit #1 (value C<2>) enables watching for write data. 1568C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
1569together, or C<urxvt::EVENT_NONE>.
848 1570
849=item $iow = $iow->start 1571=item $iow = $iow->start
850 1572
851Start watching for requested events on the given handle. 1573Start watching for requested events on the given handle.
852 1574
863This variable controls the verbosity level of the perl extension. Higher 1585This variable controls the verbosity level of the perl extension. Higher
864numbers indicate more verbose output. 1586numbers indicate more verbose output.
865 1587
866=over 4 1588=over 4
867 1589
868=item =0 - only fatal messages 1590=item == 0 - fatal messages
869 1591
870=item =3 - script loading and management 1592=item >= 3 - script loading and management
871 1593
872=item =10 - all events received 1594=item >=10 - all called hooks
1595
1596=item >=11 - hook reutrn values
873 1597
874=back 1598=back
875 1599
876=head1 AUTHOR 1600=head1 AUTHOR
877 1601

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