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Revision 1.33 by root, Thu Jan 5 01:04:10 2006 UTC vs.
Revision 1.86 by root, Thu Jan 12 05:22:47 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=item mark-urls
72
73A not very useful example of filtering all text output to the terminal, by
74underlining all urls that matches a certain regex (i.e. some urls :). It
75is not very useful because urls that are output in multiple steps (e.g.
76when typing them) do not get marked.
77
78=back 105=back
106
107=head1 API DOCUMENTATION
79 108
80=head2 General API Considerations 109=head2 General API Considerations
81 110
82All objects (such as terminals, time watchers etc.) are typical 111All objects (such as terminals, time watchers etc.) are typical
83reference-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
96=over 4 125=over 4
97 126
98=item $text 127=item $text
99 128
100Rxvt-unicodes special way of encoding text, where one "unicode" character 129Rxvt-unicodes special way of encoding text, where one "unicode" character
101always represents one screen cell. See L<row_t> for a discussion of this format. 130always represents one screen cell. See L<ROW_t> for a discussion of this format.
102 131
103=item $string 132=item $string
104 133
105A perl text string, with an emphasis on I<text>. It can store all unicode 134A perl text string, with an emphasis on I<text>. It can store all unicode
106characters and is to be distinguished with text encoded in a specific 135characters and is to be distinguished with text encoded in a specific
111Either binary data or - more common - a text string encoded in a 140Either binary data or - more common - a text string encoded in a
112locale-specific way. 141locale-specific way.
113 142
114=back 143=back
115 144
145=head2 Extension Objects
146
147Very perl extension is a perl class. A separate perl object is created
148for each terminal and each extension and passed as the first parameter to
149hooks. So extensions can use their C<$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
116=head2 Hooks 178=head2 Hooks
117 179
118The following subroutines can be declared in loaded scripts, and will be 180The following subroutines can be declared in extension files, and will be
119called whenever the relevant event happens. 181called whenever the relevant event happens.
120 182
121The 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
122and extension package. You can call all C<urxvt::term> methods on it, but 184the in the C<Extension Objects> section.
123its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
124object that is shared between all packages is stored in the C<term>
125member.
126 185
127All 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
128counts 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
129and 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.
130 189
131When in doubt, return a false value (preferably C<()>). 190I<< When in doubt, return a false value (preferably C<()>). >>
132 191
133=over 4 192=over 4
134 193
135=item on_init $term 194=item on_init $term
136 195
137Called after a new terminal object has been initialized, but before 196Called after a new terminal object has been initialized, but before
138windows 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.
139 201
140=item on_reset $term 202=item on_reset $term
141 203
142Called 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
143control 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
168=item on_sel_extend $term 230=item on_sel_extend $term
169 231
170Called 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
171click) and is either supposed to return false (normal operation), or 233click) and is either supposed to return false (normal operation), or
172should 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
173processing. 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.
174 238
175See the F<selection> example extension. 239See the F<selection> example extension.
176
177=item on_focus_in $term
178
179Called whenever the window gets the keyboard focus, before urxvt does
180focus in processing.
181
182=item on_focus_out $term
183
184Called wheneever the window loses keyboard focus, before urxvt does focus
185out processing.
186 240
187=item on_view_change $term, $offset 241=item on_view_change $term, $offset
188 242
189Called whenever the view offset changes, i..e the user or program 243Called whenever the view offset changes, i..e the user or program
190scrolls. Offset C<0> means display the normal terminal, positive values 244scrolls. Offset C<0> means display the normal terminal, positive values
197than the scroll back buffer or the terminal. 251than the scroll back buffer or the terminal.
198 252
199It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 253It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
200$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
201number of lines that will be in the scrollback buffer. 255number of lines that will be in the scrollback buffer.
202
203=item on_tty_activity $term *NYI*
204
205Called whenever the program(s) running in the urxvt window send output.
206 256
207=item on_osc_seq $term, $string 257=item on_osc_seq $term, $string
208 258
209Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC = 259Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
210operating system command) is processed. Cursor position and other state 260operating system command) is processed. Cursor position and other state
223can filter/change and output the text yourself by returning a true value 273can filter/change and output the text yourself by returning a true value
224and calling C<< $term->scr_add_lines >> yourself. Please note that this 274and calling C<< $term->scr_add_lines >> yourself. Please note that this
225might be very slow, however, as your hook is called for B<all> text being 275might be very slow, however, as your hook is called for B<all> text being
226output. 276output.
227 277
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
228=item on_refresh_begin $term 297=item on_refresh_begin $term
229 298
230Called just before the screen gets redrawn. Can be used for overlay 299Called just before the screen gets redrawn. Can be used for overlay
231or similar effects by modify terminal contents in refresh_begin, and 300or similar effects by modify terminal contents in refresh_begin, and
232restoring them in refresh_end. The built-in overlay and selection display 301restoring them in refresh_end. The built-in overlay and selection display
240 309
241Called whenever the user presses a key combination that has a 310Called whenever the user presses a key combination that has a
242C<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>
243resource in the @@RXVT_NAME@@(1) manpage). 312resource in the @@RXVT_NAME@@(1) manpage).
244 313
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
245=back 350=back
246 351
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
247=head2 Variables in the C<urxvt> Package 373=head2 Variables in the C<urxvt> Package
248 374
249=over 4 375=over 4
250 376
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
251=item $urxvt::TERM 390=item $urxvt::TERM
252 391
253The current terminal. Whenever a callback/Hook is bein executed, this 392The current terminal. This variable stores the current C<urxvt::term>
254variable stores the current C<urxvt::term> object. 393object, whenever a callback/hook is executing.
255 394
256=back 395=back
257 396
258=head2 Functions in the C<urxvt> Package 397=head2 Functions in the C<urxvt> Package
259 398
272that calls this function. 411that calls this function.
273 412
274Using 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
275correct place, e.g. on stderr of the connecting urxvtc client. 414correct place, e.g. on stderr of the connecting urxvtc client.
276 415
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
277=item $time = urxvt::NOW 424=item $time = urxvt::NOW
278 425
279Returns 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.
280 435
281=back 436=back
282 437
283=head2 RENDITION 438=head2 RENDITION
284 439
311 466
312=item $background = urxvt::GET_BASEBG $rend 467=item $background = urxvt::GET_BASEBG $rend
313 468
314Return the foreground/background colour index, respectively. 469Return the foreground/background colour index, respectively.
315 470
316=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) 471=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
317 472
318=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 473=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
319 474
320Replace the foreground/background colour in the rendition mask with the 475Replace the foreground/background colour in the rendition mask with the
321specified one. 476specified one.
322 477
323=item $value = urxvt::GET_CUSTOM ($rend) 478=item $value = urxvt::GET_CUSTOM $rend
324 479
325Return the "custom" value: Every rendition has 5 bits for use by 480Return the "custom" value: Every rendition has 5 bits for use by
326extensions. 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
327zero. 482zero.
328 483
329=item $rend = urxvt::SET_CUSTOM ($rend, $new_value) 484=item $rend = urxvt::SET_CUSTOM $rend, $new_value
330 485
331Change the custom value. 486Change the custom value.
332 487
333=back 488=back
334 489
335=cut 490=cut
336
337package urxvt;
338
339use strict;
340use Scalar::Util ();
341
342our $TERM;
343our @HOOKNAME;
344our $LIBDIR;
345 491
346BEGIN { 492BEGIN {
347 urxvt->bootstrap; 493 urxvt->bootstrap;
348 494
349 # overwrite perl's warn 495 # overwrite perl's warn
351 my $msg = join "", @_; 497 my $msg = join "", @_;
352 $msg .= "\n" 498 $msg .= "\n"
353 unless $msg =~ /\n$/; 499 unless $msg =~ /\n$/;
354 urxvt::warn ($msg); 500 urxvt::warn ($msg);
355 }; 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";
356} 508}
357 509
358my @hook_count; 510my @hook_count;
359my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 511my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
360 512
361sub verbose { 513sub verbose {
362 my ($level, $msg) = @_; 514 my ($level, $msg) = @_;
363 warn "$msg\n" if $level <= $verbosity; 515 warn "$msg\n" if $level <= $verbosity;
364} 516}
365 517
366# find on_xxx subs in the package and register them 518my $extension_pkg = "extension0000";
367# as hooks 519my %extension_pkg;
368sub register_package($) {
369 my ($pkg) = @_;
370
371 for my $htype (0.. $#HOOKNAME) {
372 my $name = $HOOKNAME[$htype];
373
374 my $ref = $pkg->can ("on_" . lc $name)
375 or next;
376
377 $TERM->{_hook}[$htype]{$pkg} = $ref;
378 $hook_count[$htype]++
379 or set_should_invoke $htype, 1;
380 }
381}
382
383my $script_pkg = "script0000";
384my %script_pkg;
385 520
386# load a single script into its own package, once only 521# load a single script into its own package, once only
387sub script_package($) { 522sub extension_package($) {
388 my ($path) = @_; 523 my ($path) = @_;
389 524
390 $script_pkg{$path} ||= do { 525 $extension_pkg{$path} ||= do {
391 my $pkg = "urxvt::" . ($script_pkg++); 526 my $pkg = "urxvt::" . ($extension_pkg++);
392 527
393 verbose 3, "loading script '$path' into package '$pkg'"; 528 verbose 3, "loading extension '$path' into package '$pkg'";
394 529
395 open my $fh, "<:raw", $path 530 open my $fh, "<:raw", $path
396 or die "$path: $!"; 531 or die "$path: $!";
397 532
533 my $source = untaint
398 my $source = "package $pkg; use strict; use utf8;\n" 534 "package $pkg; use strict; use utf8;\n"
535 . "use base urxvt::term::extension::;\n"
399 . "#line 1 \"$path\"\n{\n" 536 . "#line 1 \"$path\"\n{\n"
400 . (do { local $/; <$fh> }) 537 . (do { local $/; <$fh> })
401 . "\n};\n1"; 538 . "\n};\n1";
402 539
540 eval $source
403 eval $source or die "$path: $@"; 541 or die "$path: $@";
404 542
405 $pkg 543 $pkg
406 } 544 }
407} 545}
408 546
413 local $TERM = shift; 551 local $TERM = shift;
414 my $htype = shift; 552 my $htype = shift;
415 553
416 if ($htype == 0) { # INIT 554 if ($htype == 0) { # INIT
417 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 555 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
556
557 my %ext_arg;
418 558
419 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) {
420 my @files = grep -f $_, map "$_/$ext", @dirs; 572 my @files = grep -f $_, map "$_/$ext", @dirs;
421 573
422 if (@files) { 574 if (@files) {
423 register_package script_package $files[0]; 575 $TERM->register_package (extension_package $files[0], $argv);
424 } else { 576 } else {
425 warn "perl extension '$ext' not found in perl library search path\n"; 577 warn "perl extension '$ext' not found in perl library search path\n";
426 } 578 }
427 } 579 }
580
581 eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
582 warn $@ if $@;
428 } 583 }
429 584
430 $retval = undef; 585 $retval = undef;
431 586
432 if (my $cb = $TERM->{_hook}[$htype]) { 587 if (my $cb = $TERM->{_hook}[$htype]) {
434 if $verbosity >= 10; 589 if $verbosity >= 10;
435 590
436 keys %$cb; 591 keys %$cb;
437 592
438 while (my ($pkg, $cb) = each %$cb) { 593 while (my ($pkg, $cb) = each %$cb) {
439 $retval = $cb->( 594 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }
440 $TERM->{_pkg}{$pkg} ||= do {
441 my $proxy = bless { }, urxvt::term::proxy::;
442 Scalar::Util::weaken ($proxy->{term} = $TERM);
443 $proxy
444 },
445 @_,
446 ) and last; 595 and last;
596
597 if ($@) {
598 $TERM->ungrab; # better to lose the grab than the session
599 warn $@;
600 }
447 } 601 }
602
603 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
604 if $verbosity >= 11;
448 } 605 }
449 606
450 if ($htype == 1) { # DESTROY 607 if ($htype == 1) { # DESTROY
451 # remove hooks if unused
452 if (my $hook = $TERM->{_hook}) { 608 if (my $hook = delete $TERM->{_hook}) {
453 for my $htype (0..$#$hook) { 609 for my $htype (0..$#$hook) {
454 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 610 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
455 or set_should_invoke $htype, 0; 611 or set_should_invoke $htype, 0;
456 } 612 }
457 } 613 }
464 } 620 }
465 621
466 $retval 622 $retval
467} 623}
468 624
469sub urxvt::term::proxy::AUTOLOAD { 625sub exec_async(@) {
470 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 626 my $pid = fork;
627
628 return
629 if !defined $pid or $pid;
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 = $self->{_pkg};
644
645 while (my ($name, $cb) = each %hook) {
646 my $htype = $HOOKTYPE{uc $name};
647 defined $htype
648 or Carp::croak "unsupported hook type '$name'";
649
650 unless (exists $self->{term}{_hook}[$htype]{$pkg}) {
651 $hook_count[$htype]++
652 or urxvt::set_should_invoke $htype, 1;
653 }
654
655 $self->{term}{_hook}[$htype]{$pkg} = $cb;
656 }
657}
658
659sub disable {
660 my ($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 }
672 }
673}
674
675our $AUTOLOAD;
676
677sub AUTOLOAD {
678 $AUTOLOAD =~ /:([^:]+)$/
471 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 679 or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
472 680
473 eval qq{ 681 eval qq{
474 sub $urxvt::term::proxy::AUTOLOAD { 682 sub $AUTOLOAD {
475 my \$proxy = shift; 683 my \$proxy = shift;
476 \$proxy->{term}->$1 (\@_) 684 \$proxy->{term}->$1 (\@_)
477 } 685 }
478 1 686 1
479 } or die "FATAL: unable to compile method forwarder: $@"; 687 } or die "FATAL: unable to compile method forwarder: $@";
480 688
481 goto &$urxvt::term::proxy::AUTOLOAD; 689 goto &$AUTOLOAD;
482} 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;
483 775
484=head2 The C<urxvt::term> Class 776=head2 The C<urxvt::term> Class
485 777
486=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
487 842
488=item $value = $term->resource ($name[, $newval]) 843=item $value = $term->resource ($name[, $newval])
489 844
490Returns the current resource value associated with a given name and 845Returns the current resource value associated with a given name and
491optionally 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>
501 856
502Please note that resource strings will currently only be freed when the 857Please note that resource strings will currently only be freed when the
503terminal is destroyed, so changing options frequently will eat memory. 858terminal is destroyed, so changing options frequently will eat memory.
504 859
505Here 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
506are 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>
507list: 862to see the actual list:
508 863
509 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 864 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
510 borderLess color cursorBlink cursorUnderline cutchars delete_key 865 borderLess color cursorBlink cursorUnderline cutchars delete_key
511 display_name embed ext_bwidth fade font geometry hold iconName 866 display_name embed ext_bwidth fade font geometry hold iconName
512 imFont imLocale inputMethod insecure int_bwidth intensityStyles 867 imFont imLocale inputMethod insecure int_bwidth intensityStyles
519 shade term_name title transparent transparent_all tripleclickwords 874 shade term_name title transparent transparent_all tripleclickwords
520 utmpInhibit visualBell 875 utmpInhibit visualBell
521 876
522=cut 877=cut
523 878
524sub urxvt::term::resource($$;$) { 879sub resource($$;$) {
525 my ($self, $name) = (shift, shift); 880 my ($self, $name) = (shift, shift);
526 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 881 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
527 goto &urxvt::term::_resource; 882 &urxvt::term::_resource
528} 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.
529 900
530=item $rend = $term->rstyle ([$new_rstyle]) 901=item $rend = $term->rstyle ([$new_rstyle])
531 902
532Return and optionally change the current rendition. Text that is output by 903Return and optionally change the current rendition. Text that is output by
533the terminal application will use this style. 904the terminal application will use this style.
544=item ($row, $col) = $term->selection_end ([$row, $col]) 915=item ($row, $col) = $term->selection_end ([$row, $col])
545 916
546Return the current values of the selection mark, begin or end positions, 917Return the current values of the selection mark, begin or end positions,
547and optionally set them to new values. 918and optionally set them to new values.
548 919
920=item $term->selection_make ($eventtime[, $rectangular])
921
922Tries to make a selection as set by C<selection_beg> and
923C<selection_end>. If C<$rectangular> is true (default: false), a
924rectangular selection will be made. This is the prefered function to make
925a selection.
926
549=item $success = $term->selection_grab ($eventtime) 927=item $success = $term->selection_grab ($eventtime)
550 928
551Try to request the primary selection from the server (for example, as set 929Try to request the primary selection text from the server (for example, as
552by the next method). 930set by the next method). No visual feedback will be given. This function
931is mostly useful from within C<on_sel_grab> hooks.
553 932
554=item $oldtext = $term->selection ([$newtext]) 933=item $oldtext = $term->selection ([$newtext])
555 934
556Return the current selection text and optionally replace it by C<$newtext>. 935Return the current selection text and optionally replace it by C<$newtext>.
557 936
558#=item $term->overlay ($x, $y, $text) 937=item $term->overlay_simple ($x, $y, $text)
559# 938
560#Create a simple multi-line overlay box. See the next method for details. 939Create a simple multi-line overlay box. See the next method for details.
561# 940
562#=cut 941=cut
563# 942
564#sub urxvt::term::scr_overlay { 943sub overlay_simple {
565# my ($self, $x, $y, $text) = @_; 944 my ($self, $x, $y, $text) = @_;
566# 945
567# my @lines = split /\n/, $text; 946 my @lines = split /\n/, $text;
568# 947
569# my $w = 0; 948 my $w = List::Util::max map $self->strwidth ($_), @lines;
570# for (map $self->strwidth ($_), @lines) { 949
571# $w = $_ if $w < $_;
572# }
573#
574# $self->scr_overlay_new ($x, $y, $w, scalar @lines); 950 my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
575# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 951 $overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
576#} 952
953 $overlay
954}
577 955
578=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 956=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
579 957
580Create a new (empty) overlay at the given position with the given 958Create a new (empty) overlay at the given position with the given
581width/height. C<$rstyle> defines the initial rendition style 959width/height. C<$rstyle> defines the initial rendition style
608 986
609If hidden, display the overlay again. 987If hidden, display the overlay again.
610 988
611=back 989=back
612 990
991=item $popup = $term->popup ($event)
992
993Creates a new C<urxvt::popup> object that implements a popup menu. The
994C<$event> I<must> be the event causing the menu to pop up (a button event,
995currently).
996
997=cut
998
999sub popup {
1000 my ($self, $event) = @_;
1001
1002 $self->grab ($event->{time}, 1)
1003 or return;
1004
1005 my $popup = bless {
1006 term => $self,
1007 event => $event,
1008 }, urxvt::popup::;
1009
1010 Scalar::Util::weaken $popup->{term};
1011
1012 $self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
1013 Scalar::Util::weaken $self->{_destroy}{$popup};
1014
1015 $popup
1016}
1017
613=item $cellwidth = $term->strwidth $string 1018=item $cellwidth = $term->strwidth ($string)
614 1019
615Returns the number of screen-cells this string would need. Correctly 1020Returns the number of screen-cells this string would need. Correctly
616accounts for wide and combining characters. 1021accounts for wide and combining characters.
617 1022
618=item $octets = $term->locale_encode $string 1023=item $octets = $term->locale_encode ($string)
619 1024
620Convert the given text string into the corresponding locale encoding. 1025Convert the given text string into the corresponding locale encoding.
621 1026
622=item $string = $term->locale_decode $octets 1027=item $string = $term->locale_decode ($octets)
623 1028
624Convert the given locale-encoded octets into a perl string. 1029Convert the given locale-encoded octets into a perl string.
1030
1031=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
1032
1033XORs the rendition values in the given span with the provided value
1034(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
1035refresh hooks to provide effects similar to the selection.
1036
1037=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
1038
1039Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1040whitespace will additionally be xored with the C<$rstyle2>, which defaults
1041to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1042it instead. Both styles I<MUST NOT> contain font styles.
1043
1044=item $term->scr_bell
1045
1046Ring the bell!
625 1047
626=item $term->scr_add_lines ($string) 1048=item $term->scr_add_lines ($string)
627 1049
628Write the given text string to the screen, as if output by the application 1050Write the given text string to the screen, as if output by the application
629running inside the terminal. It may not contain command sequences (escape 1051running inside the terminal. It may not contain command sequences (escape
632 1054
633Normally its not a good idea to use this function, as programs might be 1055Normally its not a good idea to use this function, as programs might be
634confused by changes in cursor position or scrolling. Its useful inside a 1056confused by changes in cursor position or scrolling. Its useful inside a
635C<on_add_lines> hook, though. 1057C<on_add_lines> hook, though.
636 1058
1059=item $term->cmd_parse ($octets)
1060
1061Similar to C<scr_add_lines>, but the argument must be in the
1062locale-specific encoding of the terminal and can contain command sequences
1063(escape codes) that will be interpreted.
1064
637=item $term->tt_write ($octets) 1065=item $term->tt_write ($octets)
638 1066
639Write the octets given in C<$data> to the tty (i.e. as program input). To 1067Write the octets given in C<$data> to the tty (i.e. as program input). To
640pass characters instead of octets, you should convert your strings first 1068pass characters instead of octets, you should convert your strings first
641to the locale-specific encoding using C<< $term->locale_encode >>. 1069to the locale-specific encoding using C<< $term->locale_encode >>.
642 1070
1071=item $old_events = $term->pty_ev_events ([$new_events])
1072
1073Replaces the event mask of the pty watcher by the given event mask. Can
1074be used to suppress input and output handling to the pty/tty. See the
1075description of C<< urxvt::timer->events >>. Make sure to always restore
1076the previous value.
1077
1078=item $windowid = $term->parent
1079
1080Return the window id of the toplevel window.
1081
1082=item $windowid = $term->vt
1083
1084Return the window id of the terminal window.
1085
643=item $window_width = $term->width 1086=item $window_width = $term->width
644 1087
645=item $window_height = $term->height 1088=item $window_height = $term->height
646 1089
647=item $font_width = $term->fwidth 1090=item $font_width = $term->fwidth
663=item $nrow_plus_saveLines = $term->total_rows 1106=item $nrow_plus_saveLines = $term->total_rows
664 1107
665=item $lines_in_scrollback = $term->nsaved 1108=item $lines_in_scrollback = $term->nsaved
666 1109
667Return various integers describing terminal characteristics. 1110Return various integers describing terminal characteristics.
1111
1112=item $x_display = $term->display_id
1113
1114Return the DISPLAY used by rxvt-unicode.
1115
1116=item $lc_ctype = $term->locale
1117
1118Returns the LC_CTYPE category string used by this rxvt-unicode.
1119
1120=item $env = $term->env
1121
1122Returns a copy of the environment in effect for the terminal as a hashref
1123similar to C<\%ENV>.
1124
1125=cut
1126
1127sub env {
1128 if (my $env = $_[0]->_env) {
1129 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
1130 } else {
1131 +{ %ENV }
1132 }
1133}
1134
1135=item $modifiermask = $term->ModLevel3Mask
1136
1137=item $modifiermask = $term->ModMetaMask
1138
1139=item $modifiermask = $term->ModNumLockMask
1140
1141Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1142AltGr), the meta key (often Alt) and the num lock key, if applicable.
668 1143
669=item $view_start = $term->view_start ([$newvalue]) 1144=item $view_start = $term->view_start ([$newvalue])
670 1145
671Returns the negative row number of the topmost line. Minimum value is 1146Returns the negative row number of the topmost line. Minimum value is
672C<0>, which displays the normal terminal contents. Larger values scroll 1147C<0>, which displays the normal terminal contents. Larger values scroll
735about the logical line that row C<$row_number> is part of. It supports the 1210about the logical line that row C<$row_number> is part of. It supports the
736following methods: 1211following methods:
737 1212
738=over 4 1213=over 4
739 1214
740=item $text = $line->t 1215=item $text = $line->t ([$new_text])
741 1216
742Returns the full text of the line, similar to C<ROW_t> 1217Returns or replaces the full text of the line, similar to C<ROW_t>
743 1218
744=item $rend = $line->r 1219=item $rend = $line->r ([$new_rend])
745 1220
746Returns the full rendition array of the line, similar to C<ROW_r> 1221Returns or replaces the full rendition array of the line, similar to C<ROW_r>
747 1222
748=item $length = $line->l 1223=item $length = $line->l
749 1224
750Returns the length of the line in cells, similar to C<ROW_l>. 1225Returns the length of the line in cells, similar to C<ROW_l>.
751 1226
756Return the row number of the first/last row of the line, respectively. 1231Return the row number of the first/last row of the line, respectively.
757 1232
758=item $offset = $line->offset_of ($row, $col) 1233=item $offset = $line->offset_of ($row, $col)
759 1234
760Returns the character offset of the given row|col pair within the logical 1235Returns the character offset of the given row|col pair within the logical
761line. 1236line. Works for rows outside the line, too, and returns corresponding
1237offsets outside the string.
762 1238
763=item ($row, $col) = $line->coord_of ($offset) 1239=item ($row, $col) = $line->coord_of ($offset)
764 1240
765Translates a string offset into terminal coordinates again. 1241Translates a string offset into terminal coordinates again.
766 1242
767=back 1243=back
768 1244
769=cut 1245=cut
770 1246
771sub urxvt::term::line { 1247sub line {
772 my ($self, $row) = @_; 1248 my ($self, $row) = @_;
773 1249
774 my $maxrow = $self->nrow - 1; 1250 my $maxrow = $self->nrow - 1;
775 1251
776 my ($beg, $end) = ($row, $row); 1252 my ($beg, $end) = ($row, $row);
780 1256
781 bless { 1257 bless {
782 term => $self, 1258 term => $self,
783 beg => $beg, 1259 beg => $beg,
784 end => $end, 1260 end => $end,
1261 ncol => $self->ncol,
785 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end), 1262 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
786 }, urxvt::line:: 1263 }, urxvt::line::
787} 1264}
788 1265
789sub urxvt::line::t { 1266sub urxvt::line::t {
790 my ($self) = @_; 1267 my ($self) = @_;
791 1268
1269 if (@_ > 1)
1270 {
1271 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
1272 for $self->{beg} .. $self->{end};
1273 }
1274
1275 defined wantarray &&
792 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}), 1276 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
793 0, $self->{len} 1277 0, $self->{len}
794} 1278}
795 1279
796sub urxvt::line::r { 1280sub urxvt::line::r {
797 my ($self) = @_; 1281 my ($self) = @_;
798 1282
1283 if (@_ > 1)
1284 {
1285 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
1286 for $self->{beg} .. $self->{end};
1287 }
1288
1289 if (defined wantarray) {
799 my $rend = [ 1290 my $rend = [
800 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end} 1291 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
801 ]; 1292 ];
802 $#$rend = $self->{len} - 1; 1293 $#$rend = $self->{len} - 1;
803 $rend 1294 return $rend;
1295 }
1296
1297 ()
804} 1298}
805 1299
806sub urxvt::line::beg { $_[0]{beg} } 1300sub urxvt::line::beg { $_[0]{beg} }
807sub urxvt::line::end { $_[0]{end} } 1301sub urxvt::line::end { $_[0]{end} }
808sub urxvt::line::l { $_[0]{len} } 1302sub urxvt::line::l { $_[0]{len} }
809 1303
810sub urxvt::line::offset_of { 1304sub urxvt::line::offset_of {
811 my ($self, $row, $col) = @_; 1305 my ($self, $row, $col) = @_;
812 1306
813 ($row - $self->{beg}) * $self->{term}->ncol + $col 1307 ($row - $self->{beg}) * $self->{ncol} + $col
814} 1308}
815 1309
816sub urxvt::line::coord_of { 1310sub urxvt::line::coord_of {
817 my ($self, $offset) = @_; 1311 my ($self, $offset) = @_;
818 1312
819 use integer; 1313 use integer;
820 1314
821 ( 1315 (
822 $offset / $self->{term}->ncol + $self->{beg}, 1316 $offset / $self->{ncol} + $self->{beg},
823 $offset % $self->{term}->ncol 1317 $offset % $self->{ncol}
824 ) 1318 )
825} 1319}
826 1320
827=item ($row, $col) = $line->coord_of ($offset)
828=item $text = $term->special_encode $string 1321=item $text = $term->special_encode $string
829 1322
830Converts a perl string into the special encoding used by rxvt-unicode, 1323Converts a perl string into the special encoding used by rxvt-unicode,
831where one character corresponds to one screen cell. See 1324where one character corresponds to one screen cell. See
832C<< $term->ROW_t >> for details. 1325C<< $term->ROW_t >> for details.
833 1326
834=item $string = $term->special_decode $text 1327=item $string = $term->special_decode $text
835 1328
836Converts rxvt-unicodes text reprsentation into a perl string. See 1329Converts rxvt-unicodes text reprsentation into a perl string. See
837C<< $term->ROW_t >> for details. 1330C<< $term->ROW_t >> for details.
1331
1332=item $success = $term->grab_button ($button, $modifiermask)
1333
1334Registers a synchronous button grab. See the XGrabButton manpage.
1335
1336=item $success = $term->grab ($eventtime[, $sync])
1337
1338Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1339synchronous (C<$sync> is true). Also remembers the grab timestampe.
1340
1341=item $term->allow_events_async
1342
1343Calls XAllowEvents with AsyncBoth for the most recent grab.
1344
1345=item $term->allow_events_sync
1346
1347Calls XAllowEvents with SyncBoth for the most recent grab.
1348
1349=item $term->allow_events_replay
1350
1351Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1352recent grab.
1353
1354=item $term->ungrab
1355
1356Calls XUngrab for the most recent grab. Is called automatically on
1357evaluation errors, as it is better to lose the grab in the error case as
1358the session.
1359
1360=back
1361
1362=cut
1363
1364package urxvt::popup;
1365
1366=head2 The C<urxvt::popup> Class
1367
1368=over 4
1369
1370=cut
1371
1372sub add_item {
1373 my ($self, $item) = @_;
1374
1375 $item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
1376 $item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
1377 $item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
1378
1379 $item->{render} ||= sub { $_[0]{text} };
1380
1381 push @{ $self->{item} }, $item;
1382}
1383
1384=item $popup->add_title ($title)
1385
1386Adds a non-clickable title to the popup.
1387
1388=cut
1389
1390sub add_title {
1391 my ($self, $title) = @_;
1392
1393 $self->add_item ({
1394 rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
1395 text => $title,
1396 activate => sub { },
1397 });
1398}
1399
1400=item $popup->add_separator ([$sepchr])
1401
1402Creates a separator, optionally using the character given as C<$sepchr>.
1403
1404=cut
1405
1406sub add_separator {
1407 my ($self, $sep) = @_;
1408
1409 $sep ||= "=";
1410
1411 $self->add_item ({
1412 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1413 text => "",
1414 render => sub { $sep x $self->{term}->ncol },
1415 activate => sub { },
1416 });
1417}
1418
1419=item $popup->add_button ($text, $cb)
1420
1421Adds a clickable button to the popup. C<$cb> is called whenever it is
1422selected.
1423
1424=cut
1425
1426sub add_button {
1427 my ($self, $text, $cb) = @_;
1428
1429 $self->add_item ({ type => "button", text => $text, activate => $cb});
1430}
1431
1432=item $popup->add_toggle ($text, $cb, $initial_value)
1433
1434Adds a toggle/checkbox item to the popup. Teh callback gets called
1435whenever it gets toggled, with a boolean indicating its value as its first
1436argument.
1437
1438=cut
1439
1440sub add_toggle {
1441 my ($self, $text, $cb, $value) = @_;
1442
1443 my $item; $item = {
1444 type => "button",
1445 text => " $text",
1446 value => $value,
1447 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1448 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1449 };
1450
1451 $self->add_item ($item);
1452}
1453
1454=item $popup->show
1455
1456Displays the popup (which is initially hidden).
1457
1458=cut
1459
1460sub show {
1461 my ($self) = @_;
1462
1463 local $urxvt::popup::self = $self;
1464
1465 my $env = $self->{term}->env;
1466 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1467 delete $env->{LC_ALL};
1468 $env->{LC_CTYPE} = $self->{term}->locale;
1469
1470 urxvt::term->new ($env, $self->{term}->resource ("name"),
1471 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,
1472 "--transient-for" => $self->{term}->parent,
1473 "-display" => $self->{term}->display_id,
1474 "-pe" => "urxvt-popup")
1475 or die "unable to create popup window\n";
1476}
1477
1478sub DESTROY {
1479 my ($self) = @_;
1480
1481 delete $self->{term}{_destroy}{$self};
1482 $self->{term}->ungrab;
1483}
838 1484
839=back 1485=back
840 1486
841=head2 The C<urxvt::timer> Class 1487=head2 The C<urxvt::timer> Class
842 1488
897 1543
898 $term->{socket} = ... 1544 $term->{socket} = ...
899 $term->{iow} = urxvt::iow 1545 $term->{iow} = urxvt::iow
900 ->new 1546 ->new
901 ->fd (fileno $term->{socket}) 1547 ->fd (fileno $term->{socket})
902 ->events (1) # wait for read data 1548 ->events (urxvt::EVENT_READ)
903 ->start 1549 ->start
904 ->cb (sub { 1550 ->cb (sub {
905 my ($iow, $revents) = @_; 1551 my ($iow, $revents) = @_;
906 # $revents must be 1 here, no need to check 1552 # $revents must be 1 here, no need to check
907 sysread $term->{socket}, my $buf, 8192 1553 sysread $term->{socket}, my $buf, 8192
924 1570
925Set the filedescriptor (not handle) to watch. 1571Set the filedescriptor (not handle) to watch.
926 1572
927=item $iow = $iow->events ($eventmask) 1573=item $iow = $iow->events ($eventmask)
928 1574
929Set the event mask to watch. Bit #0 (value C<1>) enables watching for read 1575Set the event mask to watch. The only allowed values are
930data, Bit #1 (value C<2>) enables watching for write data. 1576C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
1577together, or C<urxvt::EVENT_NONE>.
931 1578
932=item $iow = $iow->start 1579=item $iow = $iow->start
933 1580
934Start watching for requested events on the given handle. 1581Start watching for requested events on the given handle.
935 1582
946This variable controls the verbosity level of the perl extension. Higher 1593This variable controls the verbosity level of the perl extension. Higher
947numbers indicate more verbose output. 1594numbers indicate more verbose output.
948 1595
949=over 4 1596=over 4
950 1597
951=item =0 - only fatal messages 1598=item == 0 - fatal messages
952 1599
953=item =3 - script loading and management 1600=item >= 3 - script loading and management
954 1601
955=item =10 - all events received 1602=item >=10 - all called hooks
1603
1604=item >=11 - hook reutrn values
956 1605
957=back 1606=back
958 1607
959=head1 AUTHOR 1608=head1 AUTHOR
960 1609

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