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Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.27 by root, Tue Jan 3 23:41:37 2006 UTC vs.
Revision 1.87 by root, Thu Jan 12 05:37:34 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
22	Everytime a terminal object gets created, scripts specified via the	22	Everytime a terminal object gets created, extension scripts specified via
23	C<perl> resource are loaded and associated with it.	23	the C<perl> resource are loaded and associated with it.
24		24
25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and	25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and
26	thus must be encoded as UTF-8.	26	thus must be encoded as UTF-8.
27		27
28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where	28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
29	scripts will be shared (but not enabled) for all terminals.	29	scripts will be shared (but not enabled) for all terminals.
30		30
31	=head2 Prepackaged Extensions	31	=head1 PREPACKAGED EXTENSIONS
32		32
33	This section describes the extensiosn delivered with this version. You can	33	This section describes the extensions delivered with this release. You can
34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.	34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35		35
36	You can activate them like this:	36	You 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
44	Intelligent selection. This extension tries to be more intelligent when	44	(More) intelligent selection. This extension tries to be more intelligent
45	the user extends selections (double-click). Right now, it tries to select	45	when the user extends selections (double-click and further clicks). Right
46	urls and complete shell-quoted arguments, which is very convenient, too,	46	now, it tries to select words, urls and complete shell-quoted
47	if your F<ls> supports C<--quoting-style=shell>.	47	arguments, which is very convenient, too, if your F<ls> supports
		48	C<--quoting-style=shell>.
48		49
		50	A double-click usually selects the word under the cursor, further clicks
		51	will enlarge the selection.
		52
49	It also offers the following bindable event:	53	It also offers the following bindable keyboard command:
50		54
51	=over 4	55	=over 4
52		56
53	=item rot13	57	=item rot13
54		58
…		…
56		60
57	URxvt.keysym.C-M-r: perl:selection:rot13	61	URxvt.keysym.C-M-r: perl:selection:rot13
58		62
59	=back	63	=back
60		64
		65	=item option-popup (enabled by default)
		66
		67	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
		68	runtime.
		69
		70	=item selection-popup (enabled by default)
		71
		72	Binds a popup menu to Ctrl-Button3 that lets you convert the selection
		73	text into various other formats/action (such as uri unescaping, perl
		74	evalution, web-browser starting etc.), depending on content.
		75
		76	=item searchable-scrollback<hotkey> (enabled by default)
		77
		78	Adds regex search functionality to the scrollback buffer, triggered
		79	by a hotkey (default: C<M-s>). While in search mode, normal terminal
		80	input/output is suspended and a regex is displayed at the bottom of the
		81	screen.
		82
		83	Inputting characters appends them to the regex and continues incremental
		84	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
		85	search upwards/downwards in the scrollback buffer, C<End> jumps to the
		86	bottom. C<Escape> leaves search mode and returns to the point where search
		87	was started, while C<Enter> or C<Return> stay at the current position and
		88	additionally stores the first match in the current line into the primary
		89	selection.
		90
61	=item digital-clock	91	=item digital-clock
62		92
63	Displays a digital clock using the built-in overlay.	93	Displays a digital clock using the built-in overlay.
		94
		95	=item mark-urls
		96
		97	Uses per-line display filtering (C<on_line_update>) to underline urls and
		98	make them clickable. When middle-clicked, the program specified in the
		99	resource C<urlLauncher> (default C<x-www-browser>) will be started with
		100	the URL as first argument.
		101
		102	=item block-graphics-to-ascii
		103
		104	A not very useful example of filtering all text output to the terminal,
		105	by replacing all line-drawing characters (U+2500 .. U+259F) by a
		106	similar-looking ascii character.
64		107
65	=item example-refresh-hooks	108	=item example-refresh-hooks
66		109
67	Displays a very simple digital clock in the upper right corner of the	110	Displays a very simple digital clock in the upper right corner of the
68	window. Illustrates overwriting the refresh callbacks to create your own	111	window. Illustrates overwriting the refresh callbacks to create your own
69	overlays or changes.	112	overlays or changes.
70		113
71	=back	114	=back
		115
		116	=head1 API DOCUMENTATION
72		117
73	=head2 General API Considerations	118	=head2 General API Considerations
74		119
75	All objects (such as terminals, time watchers etc.) are typical	120	All objects (such as terminals, time watchers etc.) are typical
76	reference-to-hash objects. The hash can be used to store anything you	121	reference-to-hash objects. The hash can be used to store anything you
…		…
81	When objects are destroyed on the C++ side, the perl object hashes are	126	When objects are destroyed on the C++ side, the perl object hashes are
82	emptied, so its best to store related objects such as time watchers and	127	emptied, so its best to store related objects such as time watchers and
83	the like inside the terminal object so they get destroyed as soon as the	128	the like inside the terminal object so they get destroyed as soon as the
84	terminal is destroyed.	129	terminal is destroyed.
85		130
		131	Argument names also often indicate the type of a parameter. Here are some
		132	hints on what they mean:
		133
		134	=over 4
		135
		136	=item $text
		137
		138	Rxvt-unicodes special way of encoding text, where one "unicode" character
		139	always represents one screen cell. See L<ROW_t> for a discussion of this format.
		140
		141	=item $string
		142
		143	A perl text string, with an emphasis on I<text>. It can store all unicode
		144	characters and is to be distinguished with text encoded in a specific
		145	encoding (often locale-specific) and binary data.
		146
		147	=item $octets
		148
		149	Either binary data or - more common - a text string encoded in a
		150	locale-specific way.
		151
		152	=back
		153
		154	=head2 Extension Objects
		155
		156	Very perl extension is a perl class. A separate perl object is created
		157	for each terminal and each extension and passed as the first parameter to
		158	hooks. So extensions can use their C<$self> object without having to think
		159	about other extensions, with the exception of methods and members that
		160	begin with an underscore character C<_>: these are reserved for internal
		161	use.
		162
		163	Although it isn't a C<urxvt::term> object, you can call all methods of the
		164	C<urxvt::term> class on this object.
		165
		166	It has the following methods and data members:
		167
		168	=over 4
		169
		170	=item $urxvt_term = $self->{term}
		171
		172	Returns the C<urxvt::term> object associated with this instance of the
		173	extension. This member I<must not> be changed in any way.
		174
		175	=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
		176
		177	Dynamically enable the given hooks (named without the C<on_> prefix) for
		178	this extension, replacing any previous hook. This is useful when you want
		179	to overwrite time-critical hooks only temporarily.
		180
		181	=item $self->disable ($hook_name[, $hook_name..])
		182
		183	Dynamically disable the given hooks.
		184
		185	=back
		186
86	=head2 Hooks	187	=head2 Hooks
87		188
88	The following subroutines can be declared in loaded scripts, and will be	189	The following subroutines can be declared in extension files, and will be
89	called whenever the relevant event happens.	190	called whenever the relevant event happens.
90		191
91	The first argument passed to them is an object private to each terminal	192	The first argument passed to them is an extension oject as described in
92	and extension package. You can call all C<urxvt::term> methods on it, but	193	the in the C<Extension Objects> section.
93	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
94	object that is shared between all packages is stored in the C<term>
95	member.
96		194
97	All of them must return a boolean value. If it is true, then the event	195	B<All> of these hooks must return a boolean value. If it is true, then the
98	counts as being I<consumed>, and the invocation of other hooks is skipped,	196	event counts as being I<consumed>, and the invocation of other hooks is
99	and the relevant action might not be carried out by the C++ code.	197	skipped, and the relevant action might not be carried out by the C++ code.
100		198
101	When in doubt, return a false value (preferably C<()>).	199	I<< When in doubt, return a false value (preferably C<()>). >>
102		200
103	=over 4	201	=over 4
104		202
105	=item on_init $term	203	=item on_init $term
106		204
107	Called after a new terminal object has been initialized, but before	205	Called after a new terminal object has been initialized, but before
108	windows are created or the command gets run.	206	windows are created or the command gets run. Most methods are unsafe to
		207	call or deliver senseless data, as terminal size and other characteristics
		208	have not yet been determined. You can safely query and change resources,
		209	though.
109		210
110	=item on_reset $term	211	=item on_reset $term
111		212
112	Called after the screen is "reset" for any reason, such as resizing or	213	Called after the screen is "reset" for any reason, such as resizing or
113	control sequences. Here is where you can react on changes to size-related	214	control sequences. Here is where you can react on changes to size-related
…		…
138	=item on_sel_extend $term	239	=item on_sel_extend $term
139		240
140	Called whenever the user tries to extend the selection (e.g. with a double	241	Called whenever the user tries to extend the selection (e.g. with a double
141	click) and is either supposed to return false (normal operation), or	242	click) and is either supposed to return false (normal operation), or
142	should extend the selection itelf and return true to suppress the built-in	243	should extend the selection itelf and return true to suppress the built-in
143	processing.	244	processing. This can happen multiple times, as long as the callback
		245	returns true, it will be called on every further click by the user and is
		246	supposed to enlarge the selection more and more, if possible.
144		247
145	See the F<selection> example extension.	248	See the F<selection> example extension.
146
147	=item on_focus_in $term
148
149	Called whenever the window gets the keyboard focus, before urxvt does
150	focus in processing.
151
152	=item on_focus_out $term
153
154	Called wheneever the window loses keyboard focus, before urxvt does focus
155	out processing.
156		249
157	=item on_view_change $term, $offset	250	=item on_view_change $term, $offset
158		251
159	Called whenever the view offset changes, i..e the user or program	252	Called whenever the view offset changes, i..e the user or program
160	scrolls. Offset C<0> means display the normal terminal, positive values	253	scrolls. Offset C<0> means display the normal terminal, positive values
…		…
168		261
169	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	262	It 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	263	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
171	number of lines that will be in the scrollback buffer.	264	number of lines that will be in the scrollback buffer.
172		265
173	=item on_tty_activity $term *NYI*	266	=item on_osc_seq $term, $string
174		267
175	Called whenever the program(s) running in the urxvt window send output.	268	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
		269	operating system command) is processed. Cursor position and other state
		270	information is up-to-date when this happens. For interoperability, the
		271	string should start with the extension name and a colon, to distinguish
		272	it from commands for other extensions, and this might be enforced in the
		273	future.
		274
		275	Be careful not ever to trust (in a security sense) the data you receive,
		276	as its source can not easily be controleld (e-mail content, messages from
		277	other users on the same system etc.).
		278
		279	=item on_add_lines $term, $string
		280
		281	Called whenever text is about to be output, with the text as argument. You
		282	can filter/change and output the text yourself by returning a true value
		283	and calling C<< $term->scr_add_lines >> yourself. Please note that this
		284	might be very slow, however, as your hook is called for B<all> text being
		285	output.
		286
		287	=item on_tt_write $term, $octets
		288
		289	Called whenever some data is written to the tty/pty and can be used to
		290	suppress or filter tty input.
		291
		292	=item on_line_update $term, $row
		293
		294	Called whenever a line was updated or changed. Can be used to filter
		295	screen output (e.g. underline urls or other useless stuff). Only lines
		296	that are being shown will be filtered, and, due to performance reasons,
		297	not always immediately.
		298
		299	The row number is always the topmost row of the line if the line spans
		300	multiple rows.
		301
		302	Please note that, if you change the line, then the hook might get called
		303	later with the already-modified line (e.g. if unrelated parts change), so
		304	you cannot just toggle rendition bits, but only set them.
176		305
177	=item on_refresh_begin $term	306	=item on_refresh_begin $term
178		307
179	Called just before the screen gets redrawn. Can be used for overlay	308	Called just before the screen gets redrawn. Can be used for overlay
180	or similar effects by modify terminal contents in refresh_begin, and	309	or similar effects by modify terminal contents in refresh_begin, and
…		…
189		318
190	Called whenever the user presses a key combination that has a	319	Called whenever the user presses a key combination that has a
191	C<perl:string> action bound to it (see description of the B<keysym>	320	C<perl:string> action bound to it (see description of the B<keysym>
192	resource in the @@RXVT_NAME@@(1) manpage).	321	resource in the @@RXVT_NAME@@(1) manpage).
193		322
		323	=item on_focus_in $term
		324
		325	Called whenever the window gets the keyboard focus, before rxvt-unicode
		326	does focus in processing.
		327
		328	=item on_focus_out $term
		329
		330	Called wheneever the window loses keyboard focus, before rxvt-unicode does
		331	focus out processing.
		332
		333	=item on_key_press $term, $event, $keysym, $octets
		334
		335	=item on_key_release $term, $event, $keysym
		336
		337	=item on_button_press $term, $event
		338
		339	=item on_button_release $term, $event
		340
		341	=item on_motion_notify $term, $event
		342
		343	=item on_map_notify $term, $event
		344
		345	=item on_unmap_notify $term, $event
		346
		347	Called whenever the corresponding X event is received for the terminal If
		348	the hook returns true, then the even will be ignored by rxvt-unicode.
		349
		350	The event is a hash with most values as named by Xlib (see the XEvent
		351	manpage), with the additional members C<row> and C<col>, which are the row
		352	and column under the mouse cursor.
		353
		354	C<on_key_press> additionally receives the string rxvt-unicode would
		355	output, if any, in locale-specific encoding.
		356
		357	subwindow.
		358
194	=back	359	=back
195		360
		361	=cut
		362
		363	package urxvt;
		364
		365	use utf8;
		366	use strict;
		367	use Carp ();
		368	use Scalar::Util ();
		369	use List::Util ();
		370
		371	our $VERSION = 1;
		372	our $TERM;
		373	our @HOOKNAME;
		374	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		375	our %OPTION;
		376
		377	our $LIBDIR;
		378	our $RESNAME;
		379	our $RESCLASS;
		380	our $RXVTNAME;
		381
196	=head2 Variables in the C<urxvt> Package	382	=head2 Variables in the C<urxvt> Package
197		383
198	=over 4	384	=over 4
199		385
		386	=item $urxvt::LIBDIR
		387
		388	The rxvt-unicode library directory, where, among other things, the perl
		389	modules and scripts are stored.
		390
		391	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		392
		393	The resource class and name rxvt-unicode uses to look up X resources.
		394
		395	=item $urxvt::RXVTNAME
		396
		397	The basename of the installed binaries, usually C<urxvt>.
		398
200	=item $urxvt::TERM	399	=item $urxvt::TERM
201		400
202	The current terminal. Whenever a callback/Hook is bein executed, this	401	The current terminal. This variable stores the current C<urxvt::term>
203	variable stores the current C<urxvt::term> object.	402	object, whenever a callback/hook is executing.
204		403
205	=back	404	=back
206		405
207	=head2 Functions in the C<urxvt> Package	406	=head2 Functions in the C<urxvt> Package
208		407
…		…
221	that calls this function.	420	that calls this function.
222		421
223	Using this function has the advantage that its output ends up in the	422	Using this function has the advantage that its output ends up in the
224	correct place, e.g. on stderr of the connecting urxvtc client.	423	correct place, e.g. on stderr of the connecting urxvtc client.
225		424
		425	Messages have a size limit of 1023 bytes currently.
		426
		427	=item $is_safe = urxvt::safe
		428
		429	Returns true when it is safe to do potentially unsafe things, such as
		430	evaluating perl code specified by the user. This is true when urxvt was
		431	started setuid or setgid.
		432
226	=item $time = urxvt::NOW	433	=item $time = urxvt::NOW
227		434
228	Returns the "current time" (as per the event loop).	435	Returns the "current time" (as per the event loop).
		436
		437	=item urxvt::CurrentTime
		438
		439	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		440	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		441	Button4Mask, Button5Mask, AnyModifier
		442
		443	Various constants for use in X calls and event processing.
229		444
230	=back	445	=back
231		446
232	=head2 RENDITION	447	=head2 RENDITION
233		448
…		…
260		475
261	=item $background = urxvt::GET_BASEBG $rend	476	=item $background = urxvt::GET_BASEBG $rend
262		477
263	Return the foreground/background colour index, respectively.	478	Return the foreground/background colour index, respectively.
264		479
265	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	480	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
266		481
267	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	482	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
268		483
269	Replace the foreground/background colour in the rendition mask with the	484	Replace the foreground/background colour in the rendition mask with the
270	specified one.	485	specified one.
271		486
272	=item $value = urxvt::GET_CUSTOM ($rend)	487	=item $value = urxvt::GET_CUSTOM $rend
273		488
274	Return the "custom" value: Every rendition has 5 bits for use by	489	Return the "custom" value: Every rendition has 5 bits for use by
275	extensions. They can be set and changed as you like and are initially	490	extensions. They can be set and changed as you like and are initially
276	zero.	491	zero.
277		492
278	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	493	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
279		494
280	Change the custom value.	495	Change the custom value.
281		496
282	=back	497	=back
283		498
284	=cut	499	=cut
285
286	package urxvt;
287
288	use strict;
289	use Scalar::Util ();
290
291	our $TERM;
292	our @HOOKNAME;
293	our $LIBDIR;
294		500
295	BEGIN {	501	BEGIN {
296	urxvt->bootstrap;	502	urxvt->bootstrap;
297		503
298	# overwrite perl's warn	504	# overwrite perl's warn
…		…
300	my $msg = join "", @_;	506	my $msg = join "", @_;
301	$msg .= "\n"	507	$msg .= "\n"
302	unless $msg =~ /\n$/;	508	unless $msg =~ /\n$/;
303	urxvt::warn ($msg);	509	urxvt::warn ($msg);
304	};	510	};
		511
		512	# %ENV is the original startup environment
		513	delete $ENV{IFS};
		514	delete $ENV{CDPATH};
		515	delete $ENV{BASH_ENV};
		516	$ENV{PATH} = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:/opt/bin:/opt/sbin";
305	}	517	}
306		518
307	my @hook_count;	519	my @hook_count;
308	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	520	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
309		521
310	sub verbose {	522	sub verbose {
311	my ($level, $msg) = @_;	523	my ($level, $msg) = @_;
312	warn "$msg\n" if $level <= $verbosity;	524	warn "$msg\n" if $level <= $verbosity;
313	}	525	}
314		526
315	# find on_xxx subs in the package and register them	527	my $extension_pkg = "extension0000";
316	# as hooks	528	my %extension_pkg;
317	sub register_package($) {
318	my ($pkg) = @_;
319
320	for my $htype (0.. $#HOOKNAME) {
321	my $name = $HOOKNAME[$htype];
322
323	my $ref = $pkg->can ("on_" . lc $name)
324	or next;
325
326	$TERM->{_hook}[$htype]{$pkg} = $ref;
327	$hook_count[$htype]++
328	or set_should_invoke $htype, 1;
329	}
330	}
331
332	my $script_pkg = "script0000";
333	my %script_pkg;
334		529
335	# load a single script into its own package, once only	530	# load a single script into its own package, once only
336	sub script_package($) {	531	sub extension_package($) {
337	my ($path) = @_;	532	my ($path) = @_;
338		533
339	$script_pkg{$path} ||= do {	534	$extension_pkg{$path} ||= do {
340	my $pkg = "urxvt::" . ($script_pkg++);	535	my $pkg = "urxvt::" . ($extension_pkg++);
341		536
342	verbose 3, "loading script '$path' into package '$pkg'";	537	verbose 3, "loading extension '$path' into package '$pkg'";
343		538
344	open my $fh, "<:raw", $path	539	open my $fh, "<:raw", $path
345	or die "$path: $!";	540	or die "$path: $!";
346		541
		542	my $source = untaint
347	my $source = "package $pkg; use strict; use utf8;\n"	543	"package $pkg; use strict; use utf8;\n"
		544	. "use base urxvt::term::extension::;\n"
348	. "#line 1 \"$path\"\n{\n"	545	. "#line 1 \"$path\"\n{\n"
349	. (do { local $/; <$fh> })	546	. (do { local $/; <$fh> })
350	. "\n};\n1";	547	. "\n};\n1";
351		548
		549	eval $source
352	eval $source or die "$path: $@";	550	or die "$path: $@";
353		551
354	$pkg	552	$pkg
355	}	553	}
356	}	554	}
		555
		556	our $retval; # return value for urxvt
357		557
358	# called by the rxvt core	558	# called by the rxvt core
359	sub invoke {	559	sub invoke {
360	local $TERM = shift;	560	local $TERM = shift;
361	my $htype = shift;	561	my $htype = shift;
362		562
363	if ($htype == 0) { # INIT	563	if ($htype == 0) { # INIT
364	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	564	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
		565
		566	my %ext_arg;
365		567
366	for my $ext (split /:/, $TERM->resource ("perl_ext")) {	568	for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
		569	if ($_ eq "default") {
		570	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
		571	} elsif (/^-(.*)$/) {
		572	delete $ext_arg{$1};
		573	} elsif (/^([^<]+)<(.*)>$/) {
		574	push @{ $ext_arg{$1} }, $2;
		575	} else {
		576	$ext_arg{$_} ||= [];
		577	}
		578	}
		579
		580	while (my ($ext, $argv) = each %ext_arg) {
367	my @files = grep -f $_, map "$_/$ext", @dirs;	581	my @files = grep -f $_, map "$_/$ext", @dirs;
368		582
369	if (@files) {	583	if (@files) {
370	register_package script_package $files[0];	584	$TERM->register_package (extension_package $files[0], $argv);
371	} else {	585	} else {
372	warn "perl extension '$ext' not found in perl library search path\n";	586	warn "perl extension '$ext' not found in perl library search path\n";
373	}	587	}
374	}	588	}
375		589
		590	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		591	warn $@ if $@;
		592	}
		593
		594	$retval = undef;
		595
		596	if (my $cb = $TERM->{_hook}[$htype]) {
		597	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
		598	if $verbosity >= 10;
		599
		600	keys %$cb;
		601
		602	while (my ($pkg, $cb) = each %$cb) {
		603	$retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }
		604	and last;
		605
		606	if ($@) {
		607	$TERM->ungrab; # better to lose the grab than the session
		608	warn $@;
		609	}
		610	}
		611
		612	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		613	if $verbosity >= 11;
		614	}
		615
376	} elsif ($htype == 1) { # DESTROY	616	if ($htype == 1) { # DESTROY
377	if (my $hook = $TERM->{_hook}) {	617	if (my $hook = delete $TERM->{_hook}) {
378	for my $htype (0..$#$hook) {	618	for my $htype (0..$#$hook) {
379	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }	619	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
380	or set_should_invoke $htype, 0;	620	or set_should_invoke $htype, 0;
381	}	621	}
382	}	622	}
		623
		624	# clear package objects
		625	%$_ = () for values %{ $TERM->{_pkg} };
		626
		627	# clear package
		628	%$TERM = ();
383	}	629	}
384		630
385	my $cb = $TERM->{_hook}[$htype]	631	$retval
386	or return;	632	}
387		633
388	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	634	sub exec_async(@) {
389	if $verbosity >= 10;	635	my $pid = fork;
390		636
391	keys %$cb;	637	return
		638	if !defined $pid or $pid;
392		639
		640	%ENV = %{ $TERM->env };
		641
		642	exec @_;
		643	_exit 255;
		644	}
		645
		646	# urxvt::term::extension
		647
		648	package urxvt::term::extension;
		649
		650	sub enable {
		651	my ($self, %hook) = @_;
		652	my $pkg = $self->{_pkg};
		653
393	while (my ($pkg, $cb) = each %$cb) {	654	while (my ($name, $cb) = each %hook) {
394	return 1	655	my $htype = $HOOKTYPE{uc $name};
395	if $cb->(	656	defined $htype
396	$TERM->{$pkg} ||= do {	657	or Carp::croak "unsupported hook type '$name'";
397	my $proxy = bless { }, urxvt::term::proxy::;	658
398	Scalar::Util::weaken ($proxy->{term} = $TERM);	659	unless (exists $self->{term}{_hook}[$htype]{$pkg}) {
399	$proxy	660	$hook_count[$htype]++
400	},	661	or urxvt::set_should_invoke $htype, 1;
401	@_,	662	}
402	);	663
		664	$self->{term}{_hook}[$htype]{$pkg} = $cb;
403	}	665	}
		666	}
404		667
		668	sub disable {
		669	my ($self, @hook) = @_;
		670	my $pkg = $self->{_pkg};
		671
		672	for my $name (@hook) {
		673	my $htype = $HOOKTYPE{uc $name};
		674	defined $htype
		675	or Carp::croak "unsupported hook type '$name'";
		676
		677	if (delete $self->{term}{_hook}[$htype]{$pkg}) {
		678	--$hook_count[$htype]
		679	or urxvt::set_should_invoke $htype, 0;
		680	}
405	0	681	}
406	}	682	}
407		683
408	sub urxvt::term::proxy::AUTOLOAD {	684	our $AUTOLOAD;
409	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	685
		686	sub AUTOLOAD {
		687	$AUTOLOAD =~ /:([^:]+)$/
410	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	688	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
411		689
412	eval qq{	690	eval qq{
413	sub $urxvt::term::proxy::AUTOLOAD {	691	sub $AUTOLOAD {
414	my \$proxy = shift;	692	my \$proxy = shift;
415	\$proxy->{term}->$1 (\@_)	693	\$proxy->{term}->$1 (\@_)
416	}	694	}
417	1	695	1
418	} or die "FATAL: unable to compile method forwarder: $@";	696	} or die "FATAL: unable to compile method forwarder: $@";
419		697
420	goto &$urxvt::term::proxy::AUTOLOAD;	698	goto &$AUTOLOAD;
421	}	699	}
		700
		701	sub DESTROY {
		702	# nop
		703	}
		704
		705	# urxvt::destroy_hook
		706
		707	sub urxvt::destroy_hook::DESTROY {
		708	${$_[0]}->();
		709	}
		710
		711	sub urxvt::destroy_hook(&) {
		712	bless \shift, urxvt::destroy_hook::
		713	}
		714
		715	package urxvt::anyevent;
		716
		717	=head2 The C<urxvt::anyevent> Class
		718
		719	The sole purpose of this class is to deliver an interface to the
		720	C<AnyEvent> module - any module using it will work inside urxvt without
		721	further programming. The only exception is that you cannot wait on
		722	condition variables, but non-blocking condvar use is ok. What this means
		723	is that you cannot use blocking APIs, but the non-blocking variant should
		724	work.
		725
		726	=cut
		727
		728	our $VERSION = 1;
		729
		730	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		731	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		732
		733	sub timer {
		734	my ($class, %arg) = @_;
		735
		736	my $cb = $arg{cb};
		737
		738	urxvt::timer
		739	->new
		740	->start (urxvt::NOW + $arg{after})
		741	->cb (sub {
		742	$_[0]->stop; # need to cancel manually
		743	$cb->();
		744	})
		745	}
		746
		747	sub io {
		748	my ($class, %arg) = @_;
		749
		750	my $cb = $arg{cb};
		751
		752	bless [$arg{fh}, urxvt::iow
		753	->new
		754	->fd (fileno $arg{fh})
		755	->events (($arg{poll} =~ /r/ ? 1 : 0)
		756	| ($arg{poll} =~ /w/ ? 2 : 0))
		757	->start
		758	->cb (sub {
		759	$cb->(($_[1] & 1 ? 'r' : '')
		760	. ($_[1] & 2 ? 'w' : ''));
		761	})],
		762	urxvt::anyevent::
		763	}
		764
		765	sub DESTROY {
		766	$_[0][1]->stop;
		767	}
		768
		769	sub condvar {
		770	bless \my $flag, urxvt::anyevent::condvar::
		771	}
		772
		773	sub urxvt::anyevent::condvar::broadcast {
		774	${$_[0]}++;
		775	}
		776
		777	sub urxvt::anyevent::condvar::wait {
		778	unless (${$_[0]}) {
		779	Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
		780	}
		781	}
		782
		783	package urxvt::term;
422		784
423	=head2 The C<urxvt::term> Class	785	=head2 The C<urxvt::term> Class
424		786
425	=over 4	787	=over 4
		788
		789	=cut
		790
		791	# find on_xxx subs in the package and register them
		792	# as hooks
		793	sub register_package {
		794	my ($self, $pkg, $argv) = @_;
		795
		796	my $proxy = bless {
		797	_pkg => $pkg,
		798	argv => $argv,
		799	}, $pkg;
		800	Scalar::Util::weaken ($proxy->{term} = $self);
		801
		802	$self->{_pkg}{$pkg} = $proxy;
		803
		804	for my $name (@HOOKNAME) {
		805	if (my $ref = $pkg->can ("on_" . lc $name)) {
		806	$proxy->enable ($name => $ref);
		807	}
		808	}
		809	}
		810
		811	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		812
		813	Creates a new terminal, very similar as if you had started it with system
		814	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		815	hash which defines the environment of the new terminal.
		816
		817	Croaks (and probably outputs an error message) if the new instance
		818	couldn't be created. Returns C<undef> if the new instance didn't
		819	initialise perl, and the terminal object otherwise. The C<init> and
		820	C<start> hooks will be called during this call.
		821
		822	=cut
		823
		824	sub new {
		825	my ($class, $env, @args) = @_;
		826
		827	_new ([ map "$_=$env->{$_}", keys %$env ], @args);
		828	}
		829
		830	=item $term->destroy
		831
		832	Destroy the terminal object (close the window, free resources
		833	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		834	watchers (timers, io watchers) are still active.
		835
		836	=item $isset = $term->option ($optval[, $set])
		837
		838	Returns true if the option specified by C<$optval> is enabled, and
		839	optionally change it. All option values are stored by name in the hash
		840	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		841
		842	Here is a a likely non-exhaustive list of option names, please see the
		843	source file F</src/optinc.h> to see the actual list:
		844
		845	borderLess console cursorBlink cursorUnderline hold iconic insecure
		846	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
		847	pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating
		848	scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer
		849	secondaryScreen secondaryScroll skipBuiltinGlyphs transparent
		850	tripleclickwords utmpInhibit visualBell
426		851
427	=item $value = $term->resource ($name[, $newval])	852	=item $value = $term->resource ($name[, $newval])
428		853
429	Returns the current resource value associated with a given name and	854	Returns the current resource value associated with a given name and
430	optionally sets a new value. Setting values is most useful in the C<init>	855	optionally sets a new value. Setting values is most useful in the C<init>
…		…
440		865
441	Please note that resource strings will currently only be freed when the	866	Please note that resource strings will currently only be freed when the
442	terminal is destroyed, so changing options frequently will eat memory.	867	terminal is destroyed, so changing options frequently will eat memory.
443		868
444	Here is a a likely non-exhaustive list of resource names, not all of which	869	Here is a a likely non-exhaustive list of resource names, not all of which
445	are supported in every build, please see the source to see the actual	870	are supported in every build, please see the source file F</src/rsinc.h>
446	list:	871	to see the actual list:
447		872
448	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	873	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
449	borderLess color cursorBlink cursorUnderline cutchars delete_key	874	borderLess color cursorBlink cursorUnderline cutchars delete_key
450	display_name embed ext_bwidth fade font geometry hold iconName	875	display_name embed ext_bwidth fade font geometry hold iconName
451	imFont imLocale inputMethod insecure int_bwidth intensityStyles	876	imFont imLocale inputMethod insecure int_bwidth intensityStyles
452	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	877	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
453	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext	878	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
454	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	879	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
455	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	880	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
456	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	881	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
457	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	882	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
458	shade term_name title transparent transparent_all tripleclickwords	883	shade term_name title transparent transparent_all tripleclickwords
459	utmpInhibit visualBell	884	utmpInhibit visualBell
460		885
461	=cut	886	=cut
462		887
463	sub urxvt::term::resource($$;$) {	888	sub resource($$;$) {
464	my ($self, $name) = (shift, shift);	889	my ($self, $name) = (shift, shift);
465	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	890	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
466	goto &urxvt::term::_resource;	891	&urxvt::term::_resource
467	}	892	}
		893
		894	=item $value = $term->x_resource ($pattern)
		895
		896	Returns the X-Resource for the given pattern, excluding the program or
		897	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		898	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		899	resource with that pattern exists.
		900
		901	This method should only be called during the C<on_start> hook, as there is
		902	only one resource database per display, and later invocations might return
		903	the wrong resources.
		904
		905	=item $success = $term->parse_keysym ($keysym_spec, $command_string)
		906
		907	Adds a keymap translation exactly as specified via a resource. See the
		908	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
		909
		910	=item $rend = $term->rstyle ([$new_rstyle])
		911
		912	Return and optionally change the current rendition. Text that is output by
		913	the terminal application will use this style.
		914
		915	=item ($row, $col) = $term->screen_cur ([$row, $col])
		916
		917	Return the current coordinates of the text cursor position and optionally
		918	set it (which is usually bad as applications don't expect that).
468		919
469	=item ($row, $col) = $term->selection_mark ([$row, $col])	920	=item ($row, $col) = $term->selection_mark ([$row, $col])
470		921
471	=item ($row, $col) = $term->selection_beg ([$row, $col])	922	=item ($row, $col) = $term->selection_beg ([$row, $col])
472		923
473	=item ($row, $col) = $term->selection_end ([$row, $col])	924	=item ($row, $col) = $term->selection_end ([$row, $col])
474		925
475	Return the current values of the selection mark, begin or end positions,	926	Return the current values of the selection mark, begin or end positions,
476	and optionally set them to new values.	927	and optionally set them to new values.
477		928
		929	=item $term->selection_make ($eventtime[, $rectangular])
		930
		931	Tries to make a selection as set by C<selection_beg> and
		932	C<selection_end>. If C<$rectangular> is true (default: false), a
		933	rectangular selection will be made. This is the prefered function to make
		934	a selection.
		935
478	=item $success = $term->selection_grab ($eventtime)	936	=item $success = $term->selection_grab ($eventtime)
479		937
480	Try to request the primary selection from the server (for example, as set	938	Try to request the primary selection text from the server (for example, as
481	by the next method).	939	set by the next method). No visual feedback will be given. This function
		940	is mostly useful from within C<on_sel_grab> hooks.
482		941
483	=item $oldtext = $term->selection ([$newtext])	942	=item $oldtext = $term->selection ([$newtext])
484		943
485	Return the current selection text and optionally replace it by C<$newtext>.	944	Return the current selection text and optionally replace it by C<$newtext>.
486		945
487	#=item $term->overlay ($x, $y, $text)	946	=item $term->overlay_simple ($x, $y, $text)
488	#	947
489	#Create a simple multi-line overlay box. See the next method for details.	948	Create a simple multi-line overlay box. See the next method for details.
490	#	949
491	#=cut	950	=cut
492		951
493	sub urxvt::term::scr_overlay {	952	sub overlay_simple {
494	die;
495	my ($self, $x, $y, $text) = @_;	953	my ($self, $x, $y, $text) = @_;
496		954
497	my @lines = split /\n/, $text;	955	my @lines = split /\n/, $text;
498		956
499	my $w = 0;	957	my $w = List::Util::max map $self->strwidth ($_), @lines;
500	for (map $self->strwidth ($_), @lines) {
501	$w = $_ if $w < $_;
502	}
503		958
504	$self->scr_overlay_new ($x, $y, $w, scalar @lines);	959	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
505	$self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	960	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
		961
		962	$overlay
506	}	963	}
507		964
508	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	965	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
509		966
510	Create a new (empty) overlay at the given position with the given	967	Create a new (empty) overlay at the given position with the given
…		…
538		995
539	If hidden, display the overlay again.	996	If hidden, display the overlay again.
540		997
541	=back	998	=back
542		999
		1000	=item $popup = $term->popup ($event)
		1001
		1002	Creates a new C<urxvt::popup> object that implements a popup menu. The
		1003	C<$event> I<must> be the event causing the menu to pop up (a button event,
		1004	currently).
		1005
		1006	=cut
		1007
		1008	sub popup {
		1009	my ($self, $event) = @_;
		1010
		1011	$self->grab ($event->{time}, 1)
		1012	or return;
		1013
		1014	my $popup = bless {
		1015	term => $self,
		1016	event => $event,
		1017	}, urxvt::popup::;
		1018
		1019	Scalar::Util::weaken $popup->{term};
		1020
		1021	$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
		1022	Scalar::Util::weaken $self->{_destroy}{$popup};
		1023
		1024	$popup
		1025	}
		1026
543	=item $cellwidth = $term->strwidth $string	1027	=item $cellwidth = $term->strwidth ($string)
544		1028
545	Returns the number of screen-cells this string would need. Correctly	1029	Returns the number of screen-cells this string would need. Correctly
546	accounts for wide and combining characters.	1030	accounts for wide and combining characters.
547		1031
548	=item $octets = $term->locale_encode $string	1032	=item $octets = $term->locale_encode ($string)
549		1033
550	Convert the given text string into the corresponding locale encoding.	1034	Convert the given text string into the corresponding locale encoding.
551		1035
552	=item $string = $term->locale_decode $octets	1036	=item $string = $term->locale_decode ($octets)
553		1037
554	Convert the given locale-encoded octets into a perl string.	1038	Convert the given locale-encoded octets into a perl string.
		1039
		1040	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1041
		1042	XORs the rendition values in the given span with the provided value
		1043	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1044	refresh hooks to provide effects similar to the selection.
		1045
		1046	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1047
		1048	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1049	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1050	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1051	it instead. Both styles I<MUST NOT> contain font styles.
		1052
		1053	=item $term->scr_bell
		1054
		1055	Ring the bell!
		1056
		1057	=item $term->scr_add_lines ($string)
		1058
		1059	Write the given text string to the screen, as if output by the application
		1060	running inside the terminal. It may not contain command sequences (escape
		1061	codes), but is free to use line feeds, carriage returns and tabs. The
		1062	string is a normal text string, not in locale-dependent encoding.
		1063
		1064	Normally its not a good idea to use this function, as programs might be
		1065	confused by changes in cursor position or scrolling. Its useful inside a
		1066	C<on_add_lines> hook, though.
		1067
		1068	=item $term->cmd_parse ($octets)
		1069
		1070	Similar to C<scr_add_lines>, but the argument must be in the
		1071	locale-specific encoding of the terminal and can contain command sequences
		1072	(escape codes) that will be interpreted.
555		1073
556	=item $term->tt_write ($octets)	1074	=item $term->tt_write ($octets)
557		1075
558	Write the octets given in C<$data> to the tty (i.e. as program input). To	1076	Write the octets given in C<$data> to the tty (i.e. as program input). To
559	pass characters instead of octets, you should convert your strings first	1077	pass characters instead of octets, you should convert your strings first
560	to the locale-specific encoding using C<< $term->locale_encode >>.	1078	to the locale-specific encoding using C<< $term->locale_encode >>.
561		1079
		1080	=item $old_events = $term->pty_ev_events ([$new_events])
		1081
		1082	Replaces the event mask of the pty watcher by the given event mask. Can
		1083	be used to suppress input and output handling to the pty/tty. See the
		1084	description of C<< urxvt::timer->events >>. Make sure to always restore
		1085	the previous value.
		1086
		1087	=item $windowid = $term->parent
		1088
		1089	Return the window id of the toplevel window.
		1090
		1091	=item $windowid = $term->vt
		1092
		1093	Return the window id of the terminal window.
		1094
		1095	=item $window_width = $term->width
		1096
		1097	=item $window_height = $term->height
		1098
		1099	=item $font_width = $term->fwidth
		1100
		1101	=item $font_height = $term->fheight
		1102
		1103	=item $font_ascent = $term->fbase
		1104
562	=item $nrow = $term->nrow	1105	=item $terminal_rows = $term->nrow
563		1106
564	=item $ncol = $term->ncol	1107	=item $terminal_columns = $term->ncol
565		1108
566	Return the number of rows/columns of the terminal window (i.e. as	1109	=item $has_focus = $term->focus
567	specified by C<-geometry>, excluding any scrollback).
568		1110
		1111	=item $is_mapped = $term->mapped
		1112
		1113	=item $max_scrollback = $term->saveLines
		1114
		1115	=item $nrow_plus_saveLines = $term->total_rows
		1116
		1117	=item $lines_in_scrollback = $term->nsaved
		1118
		1119	Return various integers describing terminal characteristics.
		1120
		1121	=item $x_display = $term->display_id
		1122
		1123	Return the DISPLAY used by rxvt-unicode.
		1124
		1125	=item $lc_ctype = $term->locale
		1126
		1127	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1128
569	=item $nsaved = $term->nsaved	1129	=item $env = $term->env
570		1130
571	Returns the number of lines in the scrollback buffer.	1131	Returns a copy of the environment in effect for the terminal as a hashref
		1132	similar to C<\%ENV>.
		1133
		1134	=cut
		1135
		1136	sub env {
		1137	if (my $env = $_[0]->_env) {
		1138	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
		1139	} else {
		1140	+{ %ENV }
		1141	}
		1142	}
		1143
		1144	=item $modifiermask = $term->ModLevel3Mask
		1145
		1146	=item $modifiermask = $term->ModMetaMask
		1147
		1148	=item $modifiermask = $term->ModNumLockMask
		1149
		1150	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1151	AltGr), the meta key (often Alt) and the num lock key, if applicable.
572		1152
573	=item $view_start = $term->view_start ([$newvalue])	1153	=item $view_start = $term->view_start ([$newvalue])
574		1154
575	Returns the negative row number of the topmost line. Minimum value is	1155	Returns the negative row number of the topmost line. Minimum value is
576	C<0>, which displays the normal terminal contents. Larger values scroll	1156	C<0>, which displays the normal terminal contents. Larger values scroll
…		…
639	about the logical line that row C<$row_number> is part of. It supports the	1219	about the logical line that row C<$row_number> is part of. It supports the
640	following methods:	1220	following methods:
641		1221
642	=over 4	1222	=over 4
643		1223
644	=item $text = $line->t	1224	=item $text = $line->t ([$new_text])
645		1225
646	Returns the full text of the line, similar to C<ROW_t>	1226	Returns or replaces the full text of the line, similar to C<ROW_t>
647		1227
648	=item $rend = $line->r	1228	=item $rend = $line->r ([$new_rend])
649		1229
650	Returns the full rendition array of the line, similar to C<ROW_r>	1230	Returns or replaces the full rendition array of the line, similar to C<ROW_r>
651		1231
652	=item $length = $line->l	1232	=item $length = $line->l
653		1233
654	Returns the length of the line in cells, similar to C<ROW_l>.	1234	Returns the length of the line in cells, similar to C<ROW_l>.
655		1235
…		…
660	Return the row number of the first/last row of the line, respectively.	1240	Return the row number of the first/last row of the line, respectively.
661		1241
662	=item $offset = $line->offset_of ($row, $col)	1242	=item $offset = $line->offset_of ($row, $col)
663		1243
664	Returns the character offset of the given row|col pair within the logical	1244	Returns the character offset of the given row|col pair within the logical
665	line.	1245	line. Works for rows outside the line, too, and returns corresponding
		1246	offsets outside the string.
666		1247
667	=item ($row, $col) = $line->coord_of ($offset)	1248	=item ($row, $col) = $line->coord_of ($offset)
668		1249
669	Translates a string offset into terminal coordinates again.	1250	Translates a string offset into terminal coordinates again.
670		1251
671	=back	1252	=back
672		1253
673	=cut	1254	=cut
674		1255
675	sub urxvt::term::line {	1256	sub line {
676	my ($self, $row) = @_;	1257	my ($self, $row) = @_;
677		1258
678	my $maxrow = $self->nrow - 1;	1259	my $maxrow = $self->nrow - 1;
679		1260
680	my ($beg, $end) = ($row, $row);	1261	my ($beg, $end) = ($row, $row);
…		…
684		1265
685	bless {	1266	bless {
686	term => $self,	1267	term => $self,
687	beg => $beg,	1268	beg => $beg,
688	end => $end,	1269	end => $end,
		1270	ncol => $self->ncol,
689	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),	1271	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
690	}, urxvt::line::	1272	}, urxvt::line::
691	}	1273	}
692		1274
693	sub urxvt::line::t {	1275	sub urxvt::line::t {
694	my ($self) = @_;	1276	my ($self) = @_;
695		1277
		1278	if (@_ > 1)
		1279	{
		1280	$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1281	for $self->{beg} .. $self->{end};
		1282	}
		1283
		1284	defined wantarray &&
696	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),	1285	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
697	0, $self->{len}	1286	0, $self->{len}
698	}	1287	}
699		1288
700	sub urxvt::line::r {	1289	sub urxvt::line::r {
701	my ($self) = @_;	1290	my ($self) = @_;
702		1291
		1292	if (@_ > 1)
		1293	{
		1294	$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1295	for $self->{beg} .. $self->{end};
		1296	}
		1297
		1298	if (defined wantarray) {
703	my $rend = [	1299	my $rend = [
704	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}	1300	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
705	];	1301	];
706	$#$rend = $self->{len} - 1;	1302	$#$rend = $self->{len} - 1;
707	$rend	1303	return $rend;
		1304	}
		1305
		1306	()
708	}	1307	}
709		1308
710	sub urxvt::line::beg { $_[0]{beg} }	1309	sub urxvt::line::beg { $_[0]{beg} }
711	sub urxvt::line::end { $_[0]{end} }	1310	sub urxvt::line::end { $_[0]{end} }
712	sub urxvt::line::l { $_[0]{len} }	1311	sub urxvt::line::l { $_[0]{len} }
713		1312
714	sub urxvt::line::offset_of {	1313	sub urxvt::line::offset_of {
715	my ($self, $row, $col) = @_;	1314	my ($self, $row, $col) = @_;
716		1315
717	($row - $self->{beg}) * $self->{term}->ncol + $col	1316	($row - $self->{beg}) * $self->{ncol} + $col
718	}	1317	}
719		1318
720	sub urxvt::line::coord_of {	1319	sub urxvt::line::coord_of {
721	my ($self, $offset) = @_;	1320	my ($self, $offset) = @_;
722		1321
723	use integer;	1322	use integer;
724		1323
725	(	1324	(
726	$offset / $self->{term}->ncol + $self->{beg},	1325	$offset / $self->{ncol} + $self->{beg},
727	$offset % $self->{term}->ncol	1326	$offset % $self->{ncol}
728	)	1327	)
729	}	1328	}
730		1329
731	=item ($row, $col) = $line->coord_of ($offset)
732	=item $text = $term->special_encode $string	1330	=item $text = $term->special_encode $string
733		1331
734	Converts a perl string into the special encoding used by rxvt-unicode,	1332	Converts a perl string into the special encoding used by rxvt-unicode,
735	where one character corresponds to one screen cell. See	1333	where one character corresponds to one screen cell. See
736	C<< $term->ROW_t >> for details.	1334	C<< $term->ROW_t >> for details.
737		1335
738	=item $string = $term->special_decode $text	1336	=item $string = $term->special_decode $text
739		1337
740	Converts rxvt-unicodes text reprsentation into a perl string. See	1338	Converts rxvt-unicodes text reprsentation into a perl string. See
741	C<< $term->ROW_t >> for details.	1339	C<< $term->ROW_t >> for details.
		1340
		1341	=item $success = $term->grab_button ($button, $modifiermask)
		1342
		1343	Registers a synchronous button grab. See the XGrabButton manpage.
		1344
		1345	=item $success = $term->grab ($eventtime[, $sync])
		1346
		1347	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1348	synchronous (C<$sync> is true). Also remembers the grab timestampe.
		1349
		1350	=item $term->allow_events_async
		1351
		1352	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1353
		1354	=item $term->allow_events_sync
		1355
		1356	Calls XAllowEvents with SyncBoth for the most recent grab.
		1357
		1358	=item $term->allow_events_replay
		1359
		1360	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1361	recent grab.
		1362
		1363	=item $term->ungrab
		1364
		1365	Calls XUngrab for the most recent grab. Is called automatically on
		1366	evaluation errors, as it is better to lose the grab in the error case as
		1367	the session.
		1368
		1369	=back
		1370
		1371	=cut
		1372
		1373	package urxvt::popup;
		1374
		1375	=head2 The C<urxvt::popup> Class
		1376
		1377	=over 4
		1378
		1379	=cut
		1380
		1381	sub add_item {
		1382	my ($self, $item) = @_;
		1383
		1384	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1385	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1386	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1387
		1388	$item->{render} ||= sub { $_[0]{text} };
		1389
		1390	push @{ $self->{item} }, $item;
		1391	}
		1392
		1393	=item $popup->add_title ($title)
		1394
		1395	Adds a non-clickable title to the popup.
		1396
		1397	=cut
		1398
		1399	sub add_title {
		1400	my ($self, $title) = @_;
		1401
		1402	$self->add_item ({
		1403	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1404	text => $title,
		1405	activate => sub { },
		1406	});
		1407	}
		1408
		1409	=item $popup->add_separator ([$sepchr])
		1410
		1411	Creates a separator, optionally using the character given as C<$sepchr>.
		1412
		1413	=cut
		1414
		1415	sub add_separator {
		1416	my ($self, $sep) = @_;
		1417
		1418	$sep ||= "=";
		1419
		1420	$self->add_item ({
		1421	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1422	text => "",
		1423	render => sub { $sep x $self->{term}->ncol },
		1424	activate => sub { },
		1425	});
		1426	}
		1427
		1428	=item $popup->add_button ($text, $cb)
		1429
		1430	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1431	selected.
		1432
		1433	=cut
		1434
		1435	sub add_button {
		1436	my ($self, $text, $cb) = @_;
		1437
		1438	$self->add_item ({ type => "button", text => $text, activate => $cb});
		1439	}
		1440
		1441	=item $popup->add_toggle ($text, $cb, $initial_value)
		1442
		1443	Adds a toggle/checkbox item to the popup. Teh callback gets called
		1444	whenever it gets toggled, with a boolean indicating its value as its first
		1445	argument.
		1446
		1447	=cut
		1448
		1449	sub add_toggle {
		1450	my ($self, $text, $cb, $value) = @_;
		1451
		1452	my $item; $item = {
		1453	type => "button",
		1454	text => " $text",
		1455	value => $value,
		1456	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		1457	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		1458	};
		1459
		1460	$self->add_item ($item);
		1461	}
		1462
		1463	=item $popup->show
		1464
		1465	Displays the popup (which is initially hidden).
		1466
		1467	=cut
		1468
		1469	sub show {
		1470	my ($self) = @_;
		1471
		1472	local $urxvt::popup::self = $self;
		1473
		1474	my $env = $self->{term}->env;
		1475	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		1476	delete $env->{LC_ALL};
		1477	$env->{LC_CTYPE} = $self->{term}->locale;
		1478
		1479	urxvt::term->new ($env, $self->{term}->resource ("name"),
		1480	"--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,
		1481	"--transient-for" => $self->{term}->parent,
		1482	"-display" => $self->{term}->display_id,
		1483	"-pe" => "urxvt-popup")
		1484	or die "unable to create popup window\n";
		1485	}
		1486
		1487	sub DESTROY {
		1488	my ($self) = @_;
		1489
		1490	delete $self->{term}{_destroy}{$self};
		1491	$self->{term}->ungrab;
		1492	}
742		1493
743	=back	1494	=back
744		1495
745	=head2 The C<urxvt::timer> Class	1496	=head2 The C<urxvt::timer> Class
746		1497
…		…
801		1552
802	$term->{socket} = ...	1553	$term->{socket} = ...
803	$term->{iow} = urxvt::iow	1554	$term->{iow} = urxvt::iow
804	->new	1555	->new
805	->fd (fileno $term->{socket})	1556	->fd (fileno $term->{socket})
806	->events (1) # wait for read data	1557	->events (urxvt::EVENT_READ)
807	->start	1558	->start
808	->cb (sub {	1559	->cb (sub {
809	my ($iow, $revents) = @_;	1560	my ($iow, $revents) = @_;
810	# $revents must be 1 here, no need to check	1561	# $revents must be 1 here, no need to check
811	sysread $term->{socket}, my $buf, 8192	1562	sysread $term->{socket}, my $buf, 8192
…		…
828		1579
829	Set the filedescriptor (not handle) to watch.	1580	Set the filedescriptor (not handle) to watch.
830		1581
831	=item $iow = $iow->events ($eventmask)	1582	=item $iow = $iow->events ($eventmask)
832		1583
833	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	1584	Set the event mask to watch. The only allowed values are
834	data, Bit #1 (value C<2>) enables watching for write data.	1585	C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
		1586	together, or C<urxvt::EVENT_NONE>.
835		1587
836	=item $iow = $iow->start	1588	=item $iow = $iow->start
837		1589
838	Start watching for requested events on the given handle.	1590	Start watching for requested events on the given handle.
839		1591
…		…
850	This variable controls the verbosity level of the perl extension. Higher	1602	This variable controls the verbosity level of the perl extension. Higher
851	numbers indicate more verbose output.	1603	numbers indicate more verbose output.
852		1604
853	=over 4	1605	=over 4
854		1606
855	=item =0 - only fatal messages	1607	=item == 0 - fatal messages
856		1608
857	=item =3 - script loading and management	1609	=item >= 3 - script loading and management
858		1610
859	=item =10 - all events received	1611	=item >=10 - all called hooks
		1612
		1613	=item >=11 - hook reutrn values
860		1614
861	=back	1615	=back
862		1616
863	=head1 AUTHOR	1617	=head1 AUTHOR
864		1618

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