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Revision 1.28 by root, Wed Jan 4 00:09:12 2006 UTC vs.
Revision 1.79 by root, Wed Jan 11 02:13:56 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 clicked, the program specified in the resource
91C<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
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.
144 236
145See the F<selection> example extension. 237See the F<selection> example extension.
146 238
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
157=item on_view_change $term, $offset 239=item on_view_change $term, $offset
158 240
159Called whenever the view offset changes, i..e the user or program 241Called whenever the view offset changes, i..e the user or program
160scrolls. Offset C<0> means display the normal terminal, positive values 242scrolls. Offset C<0> means display the normal terminal, positive values
161show this many lines of scrollback. 243show this many lines of scrollback.
168 250
169It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 251It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
170$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total 252$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
171number of lines that will be in the scrollback buffer. 253number of lines that will be in the scrollback buffer.
172 254
173=item on_tty_activity $term *NYI*
174
175Called whenever the program(s) running in the urxvt window send output.
176
177=item on_osc_seq $term, $string 255=item on_osc_seq $term, $string
178 256
179Called whenever the B<ESC ] 777 ; string ST> command sequence is 257Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
180processed. Cursor position and other state information is up-to-date when 258operating system command) is processed. Cursor position and other state
181this happens. For interoperability, the string should start with the 259information is up-to-date when this happens. For interoperability, the
182extension name and a colon, to distinguish it from commands for other 260string should start with the extension name and a colon, to distinguish
183extensions, and this might be enforced in the future. 261it from commands for other extensions, and this might be enforced in the
262future.
263
264Be careful not ever to trust (in a security sense) the data you receive,
265as its source can not easily be controleld (e-mail content, messages from
266other users on the same system etc.).
267
268=item on_add_lines $term, $string
269
270Called whenever text is about to be output, with the text as argument. You
271can filter/change and output the text yourself by returning a true value
272and calling C<< $term->scr_add_lines >> yourself. Please note that this
273might be very slow, however, as your hook is called for B<all> text being
274output.
275
276=item on_tt_write $term, $octets
277
278Called whenever some data is written to the tty/pty and can be used to
279suppress or filter tty input.
280
281=item on_line_update $term, $row
282
283Called whenever a line was updated or changed. Can be used to filter
284screen output (e.g. underline urls or other useless stuff). Only lines
285that are being shown will be filtered, and, due to performance reasons,
286not always immediately.
287
288The row number is always the topmost row of the line if the line spans
289multiple rows.
290
291Please note that, if you change the line, then the hook might get called
292later with the already-modified line (e.g. if unrelated parts change), so
293you cannot just toggle rendition bits, but only set them.
184 294
185=item on_refresh_begin $term 295=item on_refresh_begin $term
186 296
187Called just before the screen gets redrawn. Can be used for overlay 297Called just before the screen gets redrawn. Can be used for overlay
188or similar effects by modify terminal contents in refresh_begin, and 298or similar effects by modify terminal contents in refresh_begin, and
197 307
198Called whenever the user presses a key combination that has a 308Called whenever the user presses a key combination that has a
199C<perl:string> action bound to it (see description of the B<keysym> 309C<perl:string> action bound to it (see description of the B<keysym>
200resource in the @@RXVT_NAME@@(1) manpage). 310resource in the @@RXVT_NAME@@(1) manpage).
201 311
312=item on_focus_in $term
313
314Called whenever the window gets the keyboard focus, before rxvt-unicode
315does focus in processing.
316
317=item on_focus_out $term
318
319Called wheneever the window loses keyboard focus, before rxvt-unicode does
320focus out processing.
321
322=item on_key_press $term, $event, $keysym, $octets
323
324=item on_key_release $term, $event, $keysym
325
326=item on_button_press $term, $event
327
328=item on_button_release $term, $event
329
330=item on_motion_notify $term, $event
331
332=item on_map_notify $term, $event
333
334=item on_unmap_notify $term, $event
335
336Called whenever the corresponding X event is received for the terminal If
337the hook returns true, then the even will be ignored by rxvt-unicode.
338
339The event is a hash with most values as named by Xlib (see the XEvent
340manpage), with the additional members C<row> and C<col>, which are the row
341and column under the mouse cursor.
342
343C<on_key_press> additionally receives the string rxvt-unicode would
344output, if any, in locale-specific encoding.
345
346subwindow.
347
202=back 348=back
203 349
350=cut
351
352package urxvt;
353
354use utf8;
355use strict;
356use Carp ();
357use Scalar::Util ();
358use List::Util ();
359
360our $VERSION = 1;
361our $TERM;
362our @HOOKNAME;
363our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
364our %OPTION;
365
366our $LIBDIR;
367our $RESNAME;
368our $RESCLASS;
369our $RXVTNAME;
370
204=head2 Variables in the C<urxvt> Package 371=head2 Variables in the C<urxvt> Package
205 372
206=over 4 373=over 4
207 374
375=item $urxvt::LIBDIR
376
377The rxvt-unicode library directory, where, among other things, the perl
378modules and scripts are stored.
379
380=item $urxvt::RESCLASS, $urxvt::RESCLASS
381
382The resource class and name rxvt-unicode uses to look up X resources.
383
384=item $urxvt::RXVTNAME
385
386The basename of the installed binaries, usually C<urxvt>.
387
208=item $urxvt::TERM 388=item $urxvt::TERM
209 389
210The current terminal. Whenever a callback/Hook is bein executed, this 390The current terminal. This variable stores the current C<urxvt::term>
211variable stores the current C<urxvt::term> object. 391object, whenever a callback/hook is executing.
212 392
213=back 393=back
214 394
215=head2 Functions in the C<urxvt> Package 395=head2 Functions in the C<urxvt> Package
216 396
229that calls this function. 409that calls this function.
230 410
231Using this function has the advantage that its output ends up in the 411Using this function has the advantage that its output ends up in the
232correct place, e.g. on stderr of the connecting urxvtc client. 412correct place, e.g. on stderr of the connecting urxvtc client.
233 413
414Messages have a size limit of 1023 bytes currently.
415
416=item $is_safe = urxvt::safe
417
418Returns true when it is safe to do potentially unsafe things, such as
419evaluating perl code specified by the user. This is true when urxvt was
420started setuid or setgid.
421
234=item $time = urxvt::NOW 422=item $time = urxvt::NOW
235 423
236Returns the "current time" (as per the event loop). 424Returns the "current time" (as per the event loop).
425
426=item urxvt::CurrentTime
427
428=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
429Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
430Button4Mask, Button5Mask, AnyModifier
431
432Various constants for use in X calls and event processing.
237 433
238=back 434=back
239 435
240=head2 RENDITION 436=head2 RENDITION
241 437
268 464
269=item $background = urxvt::GET_BASEBG $rend 465=item $background = urxvt::GET_BASEBG $rend
270 466
271Return the foreground/background colour index, respectively. 467Return the foreground/background colour index, respectively.
272 468
273=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) 469=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
274 470
275=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 471=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
276 472
277Replace the foreground/background colour in the rendition mask with the 473Replace the foreground/background colour in the rendition mask with the
278specified one. 474specified one.
279 475
280=item $value = urxvt::GET_CUSTOM ($rend) 476=item $value = urxvt::GET_CUSTOM $rend
281 477
282Return the "custom" value: Every rendition has 5 bits for use by 478Return the "custom" value: Every rendition has 5 bits for use by
283extensions. They can be set and changed as you like and are initially 479extensions. They can be set and changed as you like and are initially
284zero. 480zero.
285 481
286=item $rend = urxvt::SET_CUSTOM ($rend, $new_value) 482=item $rend = urxvt::SET_CUSTOM $rend, $new_value
287 483
288Change the custom value. 484Change the custom value.
289 485
290=back 486=back
291 487
292=cut 488=cut
293
294package urxvt;
295
296use strict;
297use Scalar::Util ();
298
299our $TERM;
300our @HOOKNAME;
301our $LIBDIR;
302 489
303BEGIN { 490BEGIN {
304 urxvt->bootstrap; 491 urxvt->bootstrap;
305 492
306 # overwrite perl's warn 493 # overwrite perl's warn
308 my $msg = join "", @_; 495 my $msg = join "", @_;
309 $msg .= "\n" 496 $msg .= "\n"
310 unless $msg =~ /\n$/; 497 unless $msg =~ /\n$/;
311 urxvt::warn ($msg); 498 urxvt::warn ($msg);
312 }; 499 };
500
501 delete $ENV{IFS};
502 delete $ENV{CDPATH};
503 delete $ENV{BASH_ENV};
504 $ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
313} 505}
314 506
315my @hook_count; 507my @hook_count;
316my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 508my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
317 509
318sub verbose { 510sub verbose {
319 my ($level, $msg) = @_; 511 my ($level, $msg) = @_;
320 warn "$msg\n" if $level <= $verbosity; 512 warn "$msg\n" if $level <= $verbosity;
321} 513}
322 514
323# find on_xxx subs in the package and register them 515my $extension_pkg = "extension0000";
324# as hooks 516my %extension_pkg;
325sub register_package($) {
326 my ($pkg) = @_;
327
328 for my $htype (0.. $#HOOKNAME) {
329 my $name = $HOOKNAME[$htype];
330
331 my $ref = $pkg->can ("on_" . lc $name)
332 or next;
333
334 $TERM->{_hook}[$htype]{$pkg} = $ref;
335 $hook_count[$htype]++
336 or set_should_invoke $htype, 1;
337 }
338}
339
340my $script_pkg = "script0000";
341my %script_pkg;
342 517
343# load a single script into its own package, once only 518# load a single script into its own package, once only
344sub script_package($) { 519sub extension_package($) {
345 my ($path) = @_; 520 my ($path) = @_;
346 521
347 $script_pkg{$path} ||= do { 522 $extension_pkg{$path} ||= do {
348 my $pkg = "urxvt::" . ($script_pkg++); 523 my $pkg = "urxvt::" . ($extension_pkg++);
349 524
350 verbose 3, "loading script '$path' into package '$pkg'"; 525 verbose 3, "loading extension '$path' into package '$pkg'";
351 526
352 open my $fh, "<:raw", $path 527 open my $fh, "<:raw", $path
353 or die "$path: $!"; 528 or die "$path: $!";
354 529
530 my $source = untaint
355 my $source = "package $pkg; use strict; use utf8;\n" 531 "package $pkg; use strict; use utf8;\n"
532 . "use base urxvt::term::extension::;\n"
356 . "#line 1 \"$path\"\n{\n" 533 . "#line 1 \"$path\"\n{\n"
357 . (do { local $/; <$fh> }) 534 . (do { local $/; <$fh> })
358 . "\n};\n1"; 535 . "\n};\n1";
359 536
537 eval $source
360 eval $source or die "$path: $@"; 538 or die "$path: $@";
361 539
362 $pkg 540 $pkg
363 } 541 }
364} 542}
543
544our $retval; # return value for urxvt
365 545
366# called by the rxvt core 546# called by the rxvt core
367sub invoke { 547sub invoke {
368 local $TERM = shift; 548 local $TERM = shift;
369 my $htype = shift; 549 my $htype = shift;
370 550
371 if ($htype == 0) { # INIT 551 if ($htype == 0) { # INIT
372 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 552 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
553
554 my %ext_arg;
373 555
374 for my $ext (split /:/, $TERM->resource ("perl_ext")) { 556 for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
557 if ($_ eq "default") {
558 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
559 } elsif (/^-(.*)$/) {
560 delete $ext_arg{$1};
561 } elsif (/^([^<]+)<(.*)>$/) {
562 push @{ $ext_arg{$1} }, $2;
563 } else {
564 $ext_arg{$_} ||= [];
565 }
566 }
567
568 while (my ($ext, $argv) = each %ext_arg) {
375 my @files = grep -f $_, map "$_/$ext", @dirs; 569 my @files = grep -f $_, map "$_/$ext", @dirs;
376 570
377 if (@files) { 571 if (@files) {
378 register_package script_package $files[0]; 572 $TERM->register_package (extension_package $files[0], $argv);
379 } else { 573 } else {
380 warn "perl extension '$ext' not found in perl library search path\n"; 574 warn "perl extension '$ext' not found in perl library search path\n";
381 } 575 }
382 } 576 }
383 577
578 eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
579 warn $@ if $@;
580 }
581
582 $retval = undef;
583
584 if (my $cb = $TERM->{_hook}[$htype]) {
585 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
586 if $verbosity >= 10;
587
588 keys %$cb;
589
590 while (my ($pkg, $cb) = each %$cb) {
591 $retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }
592 and last;
593
594 if ($@) {
595 $TERM->ungrab; # better to lose the grab than the session
596 warn $@;
597 }
598 }
599 }
600
384 } elsif ($htype == 1) { # DESTROY 601 if ($htype == 1) { # DESTROY
385 if (my $hook = $TERM->{_hook}) { 602 if (my $hook = delete $TERM->{_hook}) {
386 for my $htype (0..$#$hook) { 603 for my $htype (0..$#$hook) {
387 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 604 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
388 or set_should_invoke $htype, 0; 605 or set_should_invoke $htype, 0;
389 } 606 }
390 } 607 }
608
609 # clear package objects
610 %$_ = () for values %{ $TERM->{_pkg} };
611
612 # clear package
613 %$TERM = ();
391 } 614 }
392 615
393 my $cb = $TERM->{_hook}[$htype] 616 $retval
394 or return; 617}
395 618
396 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")" 619# urxvt::term::extension
397 if $verbosity >= 10;
398 620
399 keys %$cb; 621package urxvt::term::extension;
400 622
623sub enable {
624 my ($self, %hook) = @_;
625 my $pkg = $self->{_pkg};
626
401 while (my ($pkg, $cb) = each %$cb) { 627 while (my ($name, $cb) = each %hook) {
402 return 1 628 my $htype = $HOOKTYPE{uc $name};
403 if $cb->( 629 defined $htype
404 $TERM->{$pkg} ||= do { 630 or Carp::croak "unsupported hook type '$name'";
405 my $proxy = bless { }, urxvt::term::proxy::; 631
406 Scalar::Util::weaken ($proxy->{term} = $TERM); 632 unless (exists $self->{term}{_hook}[$htype]{$pkg}) {
407 $proxy 633 $hook_count[$htype]++
408 }, 634 or urxvt::set_should_invoke $htype, 1;
409 @_, 635 }
410 ); 636
637 $self->{term}{_hook}[$htype]{$pkg} = $cb;
411 } 638 }
639}
412 640
641sub disable {
642 my ($self, @hook) = @_;
643 my $pkg = $self->{_pkg};
644
645 for my $name (@hook) {
646 my $htype = $HOOKTYPE{uc $name};
647 defined $htype
648 or Carp::croak "unsupported hook type '$name'";
649
650 if (delete $self->{term}{_hook}[$htype]{$pkg}) {
651 --$hook_count[$htype]
652 or urxvt::set_should_invoke $htype, 0;
653 }
413 0 654 }
414} 655}
415 656
416sub urxvt::term::proxy::AUTOLOAD { 657our $AUTOLOAD;
417 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 658
659sub AUTOLOAD {
660 $AUTOLOAD =~ /:([^:]+)$/
418 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 661 or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
419 662
420 eval qq{ 663 eval qq{
421 sub $urxvt::term::proxy::AUTOLOAD { 664 sub $AUTOLOAD {
422 my \$proxy = shift; 665 my \$proxy = shift;
423 \$proxy->{term}->$1 (\@_) 666 \$proxy->{term}->$1 (\@_)
424 } 667 }
425 1 668 1
426 } or die "FATAL: unable to compile method forwarder: $@"; 669 } or die "FATAL: unable to compile method forwarder: $@";
427 670
428 goto &$urxvt::term::proxy::AUTOLOAD; 671 goto &$AUTOLOAD;
429} 672}
673
674sub DESTROY {
675 # nop
676}
677
678# urxvt::destroy_hook
679
680sub urxvt::destroy_hook::DESTROY {
681 ${$_[0]}->();
682}
683
684sub urxvt::destroy_hook(&) {
685 bless \shift, urxvt::destroy_hook::
686}
687
688package urxvt::anyevent;
689
690=head2 The C<urxvt::anyevent> Class
691
692The sole purpose of this class is to deliver an interface to the
693C<AnyEvent> module - any module using it will work inside urxvt without
694further programming. The only exception is that you cannot wait on
695condition variables, but non-blocking condvar use is ok. What this means
696is that you cannot use blocking APIs, but the non-blocking variant should
697work.
698
699=cut
700
701our $VERSION = 1;
702
703$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
704push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
705
706sub timer {
707 my ($class, %arg) = @_;
708
709 my $cb = $arg{cb};
710
711 urxvt::timer
712 ->new
713 ->start (urxvt::NOW + $arg{after})
714 ->cb (sub {
715 $_[0]->stop; # need to cancel manually
716 $cb->();
717 })
718}
719
720sub io {
721 my ($class, %arg) = @_;
722
723 my $cb = $arg{cb};
724
725 bless [$arg{fh}, urxvt::iow
726 ->new
727 ->fd (fileno $arg{fh})
728 ->events (($arg{poll} =~ /r/ ? 1 : 0)
729 | ($arg{poll} =~ /w/ ? 2 : 0))
730 ->start
731 ->cb (sub {
732 $cb->(($_[1] & 1 ? 'r' : '')
733 . ($_[1] & 2 ? 'w' : ''));
734 })],
735 urxvt::anyevent::
736}
737
738sub DESTROY {
739 $_[0][1]->stop;
740}
741
742sub condvar {
743 bless \my $flag, urxvt::anyevent::condvar::
744}
745
746sub urxvt::anyevent::condvar::broadcast {
747 ${$_[0]}++;
748}
749
750sub urxvt::anyevent::condvar::wait {
751 unless (${$_[0]}) {
752 Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
753 }
754}
755
756package urxvt::term;
430 757
431=head2 The C<urxvt::term> Class 758=head2 The C<urxvt::term> Class
432 759
433=over 4 760=over 4
761
762=cut
763
764# find on_xxx subs in the package and register them
765# as hooks
766sub register_package {
767 my ($self, $pkg, $argv) = @_;
768
769 my $proxy = bless {
770 _pkg => $pkg,
771 argv => $argv,
772 }, $pkg;
773 Scalar::Util::weaken ($proxy->{term} = $self);
774
775 $self->{_pkg}{$pkg} = $proxy;
776
777 for my $name (@HOOKNAME) {
778 if (my $ref = $pkg->can ("on_" . lc $name)) {
779 $proxy->enable ($name => $ref);
780 }
781 }
782}
783
784=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
785
786Creates a new terminal, very similar as if you had started it with system
787C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
788hash which defines the environment of the new terminal.
789
790Croaks (and probably outputs an error message) if the new instance
791couldn't be created. Returns C<undef> if the new instance didn't
792initialise perl, and the terminal object otherwise. The C<init> and
793C<start> hooks will be called during this call.
794
795=cut
796
797sub new {
798 my ($class, $env, @args) = @_;
799
800 _new ([ map "$_=$env->{$_}", keys %$env ], @args);
801}
802
803=item $term->destroy
804
805Destroy the terminal object (close the window, free resources
806etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
807watchers (timers, io watchers) are still active.
808
809=item $isset = $term->option ($optval[, $set])
810
811Returns true if the option specified by C<$optval> is enabled, and
812optionally change it. All option values are stored by name in the hash
813C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
814
815Here is a a likely non-exhaustive list of option names, please see the
816source file F</src/optinc.h> to see the actual list:
817
818 borderLess console cursorBlink cursorUnderline hold iconic insecure
819 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
820 pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating
821 scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer
822 secondaryScreen secondaryScroll skipBuiltinGlyphs transparent
823 tripleclickwords utmpInhibit visualBell
434 824
435=item $value = $term->resource ($name[, $newval]) 825=item $value = $term->resource ($name[, $newval])
436 826
437Returns the current resource value associated with a given name and 827Returns the current resource value associated with a given name and
438optionally sets a new value. Setting values is most useful in the C<init> 828optionally sets a new value. Setting values is most useful in the C<init>
448 838
449Please note that resource strings will currently only be freed when the 839Please note that resource strings will currently only be freed when the
450terminal is destroyed, so changing options frequently will eat memory. 840terminal is destroyed, so changing options frequently will eat memory.
451 841
452Here is a a likely non-exhaustive list of resource names, not all of which 842Here is a a likely non-exhaustive list of resource names, not all of which
453are supported in every build, please see the source to see the actual 843are supported in every build, please see the source file F</src/rsinc.h>
454list: 844to see the actual list:
455 845
456 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 846 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
457 borderLess color cursorBlink cursorUnderline cutchars delete_key 847 borderLess color cursorBlink cursorUnderline cutchars delete_key
458 display_name embed ext_bwidth fade font geometry hold iconName 848 display_name embed ext_bwidth fade font geometry hold iconName
459 imFont imLocale inputMethod insecure int_bwidth intensityStyles 849 imFont imLocale inputMethod insecure int_bwidth intensityStyles
460 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 850 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
461 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext 851 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
462 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 852 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
463 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 853 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
464 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 854 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
465 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 855 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
466 shade term_name title transparent transparent_all tripleclickwords 856 shade term_name title transparent transparent_all tripleclickwords
467 utmpInhibit visualBell 857 utmpInhibit visualBell
468 858
469=cut 859=cut
470 860
471sub urxvt::term::resource($$;$) { 861sub resource($$;$) {
472 my ($self, $name) = (shift, shift); 862 my ($self, $name) = (shift, shift);
473 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 863 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
474 goto &urxvt::term::_resource; 864 &urxvt::term::_resource
475} 865}
866
867=item $value = $term->x_resource ($pattern)
868
869Returns the X-Resource for the given pattern, excluding the program or
870class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
871same value as used by this instance of rxvt-unicode. Returns C<undef> if no
872resource with that pattern exists.
873
874This method should only be called during the C<on_start> hook, as there is
875only one resource database per display, and later invocations might return
876the wrong resources.
877
878=item $success = $term->parse_keysym ($keysym_spec, $command_string)
879
880Adds a keymap translation exactly as specified via a resource. See the
881C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
882
883=item $rend = $term->rstyle ([$new_rstyle])
884
885Return and optionally change the current rendition. Text that is output by
886the terminal application will use this style.
887
888=item ($row, $col) = $term->screen_cur ([$row, $col])
889
890Return the current coordinates of the text cursor position and optionally
891set it (which is usually bad as applications don't expect that).
476 892
477=item ($row, $col) = $term->selection_mark ([$row, $col]) 893=item ($row, $col) = $term->selection_mark ([$row, $col])
478 894
479=item ($row, $col) = $term->selection_beg ([$row, $col]) 895=item ($row, $col) = $term->selection_beg ([$row, $col])
480 896
490 906
491=item $oldtext = $term->selection ([$newtext]) 907=item $oldtext = $term->selection ([$newtext])
492 908
493Return the current selection text and optionally replace it by C<$newtext>. 909Return the current selection text and optionally replace it by C<$newtext>.
494 910
495#=item $term->overlay ($x, $y, $text) 911=item $term->overlay_simple ($x, $y, $text)
496# 912
497#Create a simple multi-line overlay box. See the next method for details. 913Create a simple multi-line overlay box. See the next method for details.
498# 914
499#=cut 915=cut
500 916
501sub urxvt::term::scr_overlay { 917sub overlay_simple {
502die;
503 my ($self, $x, $y, $text) = @_; 918 my ($self, $x, $y, $text) = @_;
504 919
505 my @lines = split /\n/, $text; 920 my @lines = split /\n/, $text;
506 921
507 my $w = 0; 922 my $w = List::Util::max map $self->strwidth ($_), @lines;
508 for (map $self->strwidth ($_), @lines) {
509 $w = $_ if $w < $_;
510 }
511 923
512 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 924 my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
513 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 925 $overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
926
927 $overlay
514} 928}
515 929
516=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 930=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
517 931
518Create a new (empty) overlay at the given position with the given 932Create a new (empty) overlay at the given position with the given
546 960
547If hidden, display the overlay again. 961If hidden, display the overlay again.
548 962
549=back 963=back
550 964
965=item $popup = $term->popup ($event)
966
967Creates a new C<urxvt::popup> object that implements a popup menu. The
968C<$event> I<must> be the event causing the menu to pop up (a button event,
969currently).
970
971=cut
972
973sub popup {
974 my ($self, $event) = @_;
975
976 $self->grab ($event->{time}, 1)
977 or return;
978
979 my $popup = bless {
980 term => $self,
981 event => $event,
982 }, urxvt::popup::;
983
984 Scalar::Util::weaken $popup->{term};
985
986 $self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
987 Scalar::Util::weaken $self->{_destroy}{$popup};
988
989 $popup
990}
991
551=item $cellwidth = $term->strwidth $string 992=item $cellwidth = $term->strwidth ($string)
552 993
553Returns the number of screen-cells this string would need. Correctly 994Returns the number of screen-cells this string would need. Correctly
554accounts for wide and combining characters. 995accounts for wide and combining characters.
555 996
556=item $octets = $term->locale_encode $string 997=item $octets = $term->locale_encode ($string)
557 998
558Convert the given text string into the corresponding locale encoding. 999Convert the given text string into the corresponding locale encoding.
559 1000
560=item $string = $term->locale_decode $octets 1001=item $string = $term->locale_decode ($octets)
561 1002
562Convert the given locale-encoded octets into a perl string. 1003Convert the given locale-encoded octets into a perl string.
1004
1005=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
1006
1007XORs the rendition values in the given span with the provided value
1008(default: C<RS_RVid>). Useful in refresh hooks to provide effects similar
1009to the selection.
1010
1011=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
1012
1013Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1014whitespace will additionally be xored with the C<$rstyle2>, which defaults
1015to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1016it instead.
1017
1018=item $term->scr_bell
1019
1020Ring the bell!
1021
1022=item $term->scr_add_lines ($string)
1023
1024Write the given text string to the screen, as if output by the application
1025running inside the terminal. It may not contain command sequences (escape
1026codes), but is free to use line feeds, carriage returns and tabs. The
1027string is a normal text string, not in locale-dependent encoding.
1028
1029Normally its not a good idea to use this function, as programs might be
1030confused by changes in cursor position or scrolling. Its useful inside a
1031C<on_add_lines> hook, though.
1032
1033=item $term->cmd_parse ($octets)
1034
1035Similar to C<scr_add_lines>, but the argument must be in the
1036locale-specific encoding of the terminal and can contain command sequences
1037(escape codes) that will be interpreted.
563 1038
564=item $term->tt_write ($octets) 1039=item $term->tt_write ($octets)
565 1040
566Write the octets given in C<$data> to the tty (i.e. as program input). To 1041Write the octets given in C<$data> to the tty (i.e. as program input). To
567pass characters instead of octets, you should convert your strings first 1042pass characters instead of octets, you should convert your strings first
568to the locale-specific encoding using C<< $term->locale_encode >>. 1043to the locale-specific encoding using C<< $term->locale_encode >>.
569 1044
1045=item $old_events = $term->pty_ev_events ([$new_events])
1046
1047Replaces the event mask of the pty watcher by the given event mask. Can
1048be used to suppress input and output handling to the pty/tty. See the
1049description of C<< urxvt::timer->events >>. Make sure to always restore
1050the previous value.
1051
1052=item $windowid = $term->parent
1053
1054Return the window id of the toplevel window.
1055
1056=item $windowid = $term->vt
1057
1058Return the window id of the terminal window.
1059
1060=item $window_width = $term->width
1061
1062=item $window_height = $term->height
1063
1064=item $font_width = $term->fwidth
1065
1066=item $font_height = $term->fheight
1067
1068=item $font_ascent = $term->fbase
1069
570=item $nrow = $term->nrow 1070=item $terminal_rows = $term->nrow
571 1071
572=item $ncol = $term->ncol 1072=item $terminal_columns = $term->ncol
573 1073
574Return the number of rows/columns of the terminal window (i.e. as 1074=item $has_focus = $term->focus
575specified by C<-geometry>, excluding any scrollback).
576 1075
1076=item $is_mapped = $term->mapped
1077
1078=item $max_scrollback = $term->saveLines
1079
1080=item $nrow_plus_saveLines = $term->total_rows
1081
1082=item $lines_in_scrollback = $term->nsaved
1083
1084Return various integers describing terminal characteristics.
1085
1086=item $x_display = $term->display_id
1087
1088Return the DISPLAY used by rxvt-unicode.
1089
1090=item $lc_ctype = $term->locale
1091
1092Returns the LC_CTYPE category string used by this rxvt-unicode.
1093
577=item $nsaved = $term->nsaved 1094=item $env = $term->env
578 1095
579Returns the number of lines in the scrollback buffer. 1096Returns a copy of the environment in effect for the terminal as a hashref
1097similar to C<\%ENV>.
1098
1099=cut
1100
1101sub env {
1102 if (my $env = $_[0]->_env) {
1103 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
1104 } else {
1105 +{ %ENV }
1106 }
1107}
1108
1109=item $modifiermask = $term->ModLevel3Mask
1110
1111=item $modifiermask = $term->ModMetaMask
1112
1113=item $modifiermask = $term->ModNumLockMask
1114
1115Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1116AltGr), the meta key (often Alt) and the num lock key, if applicable.
580 1117
581=item $view_start = $term->view_start ([$newvalue]) 1118=item $view_start = $term->view_start ([$newvalue])
582 1119
583Returns the negative row number of the topmost line. Minimum value is 1120Returns the negative row number of the topmost line. Minimum value is
584C<0>, which displays the normal terminal contents. Larger values scroll 1121C<0>, which displays the normal terminal contents. Larger values scroll
647about the logical line that row C<$row_number> is part of. It supports the 1184about the logical line that row C<$row_number> is part of. It supports the
648following methods: 1185following methods:
649 1186
650=over 4 1187=over 4
651 1188
652=item $text = $line->t 1189=item $text = $line->t ([$new_text])
653 1190
654Returns the full text of the line, similar to C<ROW_t> 1191Returns or replaces the full text of the line, similar to C<ROW_t>
655 1192
656=item $rend = $line->r 1193=item $rend = $line->r ([$new_rend])
657 1194
658Returns the full rendition array of the line, similar to C<ROW_r> 1195Returns or replaces the full rendition array of the line, similar to C<ROW_r>
659 1196
660=item $length = $line->l 1197=item $length = $line->l
661 1198
662Returns the length of the line in cells, similar to C<ROW_l>. 1199Returns the length of the line in cells, similar to C<ROW_l>.
663 1200
678 1215
679=back 1216=back
680 1217
681=cut 1218=cut
682 1219
683sub urxvt::term::line { 1220sub line {
684 my ($self, $row) = @_; 1221 my ($self, $row) = @_;
685 1222
686 my $maxrow = $self->nrow - 1; 1223 my $maxrow = $self->nrow - 1;
687 1224
688 my ($beg, $end) = ($row, $row); 1225 my ($beg, $end) = ($row, $row);
692 1229
693 bless { 1230 bless {
694 term => $self, 1231 term => $self,
695 beg => $beg, 1232 beg => $beg,
696 end => $end, 1233 end => $end,
1234 ncol => $self->ncol,
697 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end), 1235 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
698 }, urxvt::line:: 1236 }, urxvt::line::
699} 1237}
700 1238
701sub urxvt::line::t { 1239sub urxvt::line::t {
702 my ($self) = @_; 1240 my ($self) = @_;
703 1241
1242 if (@_ > 1)
1243 {
1244 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
1245 for $self->{beg} .. $self->{end};
1246 }
1247
1248 defined wantarray &&
704 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}), 1249 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
705 0, $self->{len} 1250 0, $self->{len}
706} 1251}
707 1252
708sub urxvt::line::r { 1253sub urxvt::line::r {
709 my ($self) = @_; 1254 my ($self) = @_;
710 1255
1256 if (@_ > 1)
1257 {
1258 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
1259 for $self->{beg} .. $self->{end};
1260 }
1261
1262 if (defined wantarray) {
711 my $rend = [ 1263 my $rend = [
712 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end} 1264 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
713 ]; 1265 ];
714 $#$rend = $self->{len} - 1; 1266 $#$rend = $self->{len} - 1;
715 $rend 1267 return $rend;
1268 }
1269
1270 ()
716} 1271}
717 1272
718sub urxvt::line::beg { $_[0]{beg} } 1273sub urxvt::line::beg { $_[0]{beg} }
719sub urxvt::line::end { $_[0]{end} } 1274sub urxvt::line::end { $_[0]{end} }
720sub urxvt::line::l { $_[0]{len} } 1275sub urxvt::line::l { $_[0]{len} }
721 1276
722sub urxvt::line::offset_of { 1277sub urxvt::line::offset_of {
723 my ($self, $row, $col) = @_; 1278 my ($self, $row, $col) = @_;
724 1279
725 ($row - $self->{beg}) * $self->{term}->ncol + $col 1280 ($row - $self->{beg}) * $self->{ncol} + $col
726} 1281}
727 1282
728sub urxvt::line::coord_of { 1283sub urxvt::line::coord_of {
729 my ($self, $offset) = @_; 1284 my ($self, $offset) = @_;
730 1285
731 use integer; 1286 use integer;
732 1287
733 ( 1288 (
734 $offset / $self->{term}->ncol + $self->{beg}, 1289 $offset / $self->{ncol} + $self->{beg},
735 $offset % $self->{term}->ncol 1290 $offset % $self->{ncol}
736 ) 1291 )
737} 1292}
738 1293
739=item ($row, $col) = $line->coord_of ($offset)
740=item $text = $term->special_encode $string 1294=item $text = $term->special_encode $string
741 1295
742Converts a perl string into the special encoding used by rxvt-unicode, 1296Converts a perl string into the special encoding used by rxvt-unicode,
743where one character corresponds to one screen cell. See 1297where one character corresponds to one screen cell. See
744C<< $term->ROW_t >> for details. 1298C<< $term->ROW_t >> for details.
745 1299
746=item $string = $term->special_decode $text 1300=item $string = $term->special_decode $text
747 1301
748Converts rxvt-unicodes text reprsentation into a perl string. See 1302Converts rxvt-unicodes text reprsentation into a perl string. See
749C<< $term->ROW_t >> for details. 1303C<< $term->ROW_t >> for details.
1304
1305=item $success = $term->grab_button ($button, $modifiermask)
1306
1307Registers a synchronous button grab. See the XGrabButton manpage.
1308
1309=item $success = $term->grab ($eventtime[, $sync])
1310
1311Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1312synchronous (C<$sync> is true). Also remembers the grab timestampe.
1313
1314=item $term->allow_events_async
1315
1316Calls XAllowEvents with AsyncBoth for the most recent grab.
1317
1318=item $term->allow_events_sync
1319
1320Calls XAllowEvents with SyncBoth for the most recent grab.
1321
1322=item $term->allow_events_replay
1323
1324Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1325recent grab.
1326
1327=item $term->ungrab
1328
1329Calls XUngrab for the most recent grab. Is called automatically on
1330evaluation errors, as it is better to lose the grab in the error case as
1331the session.
1332
1333=back
1334
1335=cut
1336
1337package urxvt::popup;
1338
1339=head2 The C<urxvt::popup> Class
1340
1341=over 4
1342
1343=cut
1344
1345sub add_item {
1346 my ($self, $item) = @_;
1347
1348 $item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
1349 $item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
1350 $item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
1351
1352 $item->{render} ||= sub { $_[0]{text} };
1353
1354 push @{ $self->{item} }, $item;
1355}
1356
1357=item $popup->add_title ($title)
1358
1359Adds a non-clickable title to the popup.
1360
1361=cut
1362
1363sub add_title {
1364 my ($self, $title) = @_;
1365
1366 $self->add_item ({
1367 rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
1368 text => $title,
1369 activate => sub { },
1370 });
1371}
1372
1373=item $popup->add_separator ([$sepchr])
1374
1375Creates a separator, optionally using the character given as C<$sepchr>.
1376
1377=cut
1378
1379sub add_separator {
1380 my ($self, $sep) = @_;
1381
1382 $sep ||= "=";
1383
1384 $self->add_item ({
1385 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1386 text => "",
1387 render => sub { $sep x $self->{term}->ncol },
1388 activate => sub { },
1389 });
1390}
1391
1392=item $popup->add_button ($text, $cb)
1393
1394Adds a clickable button to the popup. C<$cb> is called whenever it is
1395selected.
1396
1397=cut
1398
1399sub add_button {
1400 my ($self, $text, $cb) = @_;
1401
1402 $self->add_item ({ type => "button", text => $text, activate => $cb});
1403}
1404
1405=item $popup->add_toggle ($text, $cb, $initial_value)
1406
1407Adds a toggle/checkbox item to the popup. Teh callback gets called
1408whenever it gets toggled, with a boolean indicating its value as its first
1409argument.
1410
1411=cut
1412
1413sub add_toggle {
1414 my ($self, $text, $cb, $value) = @_;
1415
1416 my $item; $item = {
1417 type => "button",
1418 text => " $text",
1419 value => $value,
1420 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1421 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1422 };
1423
1424 $self->add_item ($item);
1425}
1426
1427=item $popup->show
1428
1429Displays the popup (which is initially hidden).
1430
1431=cut
1432
1433sub show {
1434 my ($self) = @_;
1435
1436 local $urxvt::popup::self = $self;
1437
1438 my $env = $self->{term}->env;
1439 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1440 delete $env->{LC_ALL};
1441 $env->{LC_CTYPE} = $self->{term}->locale;
1442
1443 urxvt::term->new ($env, $self->{term}->resource ("name"),
1444 "--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,
1445 "--transient-for" => $self->{term}->parent,
1446 "-display" => $self->{term}->display_id,
1447 "-pe" => "urxvt-popup")
1448 or die "unable to create popup window\n";
1449}
1450
1451sub DESTROY {
1452 my ($self) = @_;
1453
1454 delete $self->{term}{_destroy}{$self};
1455 $self->{term}->ungrab;
1456}
750 1457
751=back 1458=back
752 1459
753=head2 The C<urxvt::timer> Class 1460=head2 The C<urxvt::timer> Class
754 1461
809 1516
810 $term->{socket} = ... 1517 $term->{socket} = ...
811 $term->{iow} = urxvt::iow 1518 $term->{iow} = urxvt::iow
812 ->new 1519 ->new
813 ->fd (fileno $term->{socket}) 1520 ->fd (fileno $term->{socket})
814 ->events (1) # wait for read data 1521 ->events (urxvt::EVENT_READ)
815 ->start 1522 ->start
816 ->cb (sub { 1523 ->cb (sub {
817 my ($iow, $revents) = @_; 1524 my ($iow, $revents) = @_;
818 # $revents must be 1 here, no need to check 1525 # $revents must be 1 here, no need to check
819 sysread $term->{socket}, my $buf, 8192 1526 sysread $term->{socket}, my $buf, 8192
836 1543
837Set the filedescriptor (not handle) to watch. 1544Set the filedescriptor (not handle) to watch.
838 1545
839=item $iow = $iow->events ($eventmask) 1546=item $iow = $iow->events ($eventmask)
840 1547
841Set the event mask to watch. Bit #0 (value C<1>) enables watching for read 1548Set the event mask to watch. The only allowed values are
842data, Bit #1 (value C<2>) enables watching for write data. 1549C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
1550together, or C<urxvt::EVENT_NONE>.
843 1551
844=item $iow = $iow->start 1552=item $iow = $iow->start
845 1553
846Start watching for requested events on the given handle. 1554Start watching for requested events on the given handle.
847 1555
858This variable controls the verbosity level of the perl extension. Higher 1566This variable controls the verbosity level of the perl extension. Higher
859numbers indicate more verbose output. 1567numbers indicate more verbose output.
860 1568
861=over 4 1569=over 4
862 1570
863=item =0 - only fatal messages 1571=item == 0 - fatal messages
864 1572
865=item =3 - script loading and management 1573=item >= 3 - script loading and management
866 1574
867=item =10 - all events received 1575=item >=10 - all events received
868 1576
869=back 1577=back
870 1578
871=head1 AUTHOR 1579=head1 AUTHOR
872 1580

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