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Revision 1.43 by root, Sat Jan 7 04:19:43 2006 UTC vs.
Revision 1.271 by root, Fri Dec 9 05:06:46 2022 UTC

1	=encoding utf8	1	=encoding utf8
2		2
3	=head1 NAME	3	=head1 NAME
4		4
5	@@RXVT_NAME@@perl - rxvt-unicode's embedded perl interpreter	5	urxvtperl - rxvt-unicode's embedded perl interpreter
6		6
7	=head1 SYNOPSIS	7	=head1 SYNOPSIS
8		8
9	# create a file grab_test in $HOME:	9	# create a file grab_test in some directory:
10		10
11	sub on_sel_grab {	11	sub on_sel_grab {
12	warn "you selected ", $_[0]->selection;	12	warn "you selected ", $_[0]->selection;
13	()	13	()
14	}	14	}
15		15
16	# start a @@RXVT_NAME@@ using it:	16	# start a urxvt instance using it:
17		17
18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test	18	urxvt --perl-lib path/to/somedirectory -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	Every time 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 qw(vars subs)' and 'use utf8'
26	thus must be encoded as UTF-8.	26	environment, and 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 urxvtd, 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	You can disable the embedded perl interpreter by setting both "perl-ext"
		32	and "perl-ext-common" resources to the empty string.
32		33
33	This section describes the extensiosn delivered with this version. You can	34	=head1 PREPACKAGED EXTENSIONS
34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.	35
		36	A number of extensions are delivered with this release. You can find them
		37	in F<< <libdir>/urxvt/perl/ >>, and the documentation can be viewed using
		38	F<< man urxvt-<EXTENSIONNAME> >>.
35		39
36	You can activate them like this:	40	You can activate them like this:
37		41
38	@@RXVT_NAME@@ -pe <extensionname>	42	urxvt -pe <extensionname>
39		43
40	=over 4	44	Or by adding them to the resource for extensions loaded by default:
41		45
42	=item selection	46	URxvt.perl-ext-common: default,selection-autotransform
43		47
44	Intelligent selection. This extension tries to be more intelligent when	48	Extensions may add additional resources and C<actions>, i.e., methods
45	the user extends selections (double-click). Right now, it tries to select	49	which can be bound to a key and invoked by the user. An extension can
46	urls and complete shell-quoted arguments, which is very convenient, too,	50	define the resources it support using so called META comments,
47	if your F<ls> supports C<--quoting-style=shell>.	51	described below. Similarly to builtin resources, extension resources
		52	can also be specified on the command line as long options (with C<.>
		53	replaced by C<->), in which case the corresponding extension is loaded
		54	automatically. For this to work the extension B<must> define META
		55	comments for its resources.
48		56
49	It also offers the following bindable event:	57	=head1 API DOCUMENTATION
50
51	=over 4
52
53	=item rot13
54
55	Rot-13 the selection when activated. Used via keyboard trigger:
56
57	URxvt.keysym.C-M-r: perl:selection:rot13
58
59	=back
60
61	=item digital-clock
62
63	Displays a digital clock using the built-in overlay.
64
65	=item mark-urls
66
67	Uses per-line display filtering (C<on_line_update>) to underline urls.
68
69	=item block-graphics-to-ascii
70
71	A not very useful example of filtering all text output to the terminal,
72	by replacing all line-drawing characters (U+2500 .. U+259F) by a
73	similar-looking ascii character.
74
75	=item example-refresh-hooks
76
77	Displays a very simple digital clock in the upper right corner of the
78	window. Illustrates overwriting the refresh callbacks to create your own
79	overlays or changes.
80
81	=back
82		58
83	=head2 General API Considerations	59	=head2 General API Considerations
84		60
85	All objects (such as terminals, time watchers etc.) are typical	61	All objects (such as terminals, time watchers etc.) are typical
86	reference-to-hash objects. The hash can be used to store anything you	62	reference-to-hash objects. The hash can be used to store anything you
…		…
94	terminal is destroyed.	70	terminal is destroyed.
95		71
96	Argument names also often indicate the type of a parameter. Here are some	72	Argument names also often indicate the type of a parameter. Here are some
97	hints on what they mean:	73	hints on what they mean:
98		74
99	=over 4	75	=over
100		76
101	=item $text	77	=item $text
102		78
103	Rxvt-unicodes special way of encoding text, where one "unicode" character	79	Rxvt-unicode's special way of encoding text, where one "unicode" character
104	always represents one screen cell. See L<row_t> for a discussion of this format.	80	always represents one screen cell. See L<ROW_t> for a discussion of this format.
105		81
106	=item $string	82	=item $string
107		83
108	A perl text string, with an emphasis on I<text>. It can store all unicode	84	A perl text string, with an emphasis on I<text>. It can store all unicode
109	characters and is to be distinguished with text encoded in a specific	85	characters and is to be distinguished with text encoded in a specific
…		…
112	=item $octets	88	=item $octets
113		89
114	Either binary data or - more common - a text string encoded in a	90	Either binary data or - more common - a text string encoded in a
115	locale-specific way.	91	locale-specific way.
116		92
		93	=item $keysym
		94
		95	an integer that is a valid X11 keysym code. You can convert a string
		96	into a keysym and viceversa by using C<XStringToKeysym> and
		97	C<XKeysymToString>.
		98
		99	=back
		100
		101	=head2 Extension Objects
		102
		103	Every perl extension is a perl class. A separate perl object is created
		104	for each terminal, and each terminal has its own set of extension objects,
		105	which are passed as the first parameter to hooks. So extensions can use
		106	their C<$self> object without having to think about clashes with other
		107	extensions or other terminals, with the exception of methods and members
		108	that begin with an underscore character C<_>: these are reserved for
		109	internal use.
		110
		111	Although it isn't a C<urxvt::term> object, you can call all methods of the
		112	C<urxvt::term> class on this object.
		113
		114	Additional methods only supported for extension objects are described in
		115	the C<urxvt::extension> section below.
		116
		117	=head2 META comments
		118
		119	Rxvt-unicode recognizes special meta comments in extensions that define
		120	different types of metadata. These comments are scanned whenever a
		121	terminal is created and are typically used to autoload extensions when
		122	their resources or command line parameters are used.
		123
		124	Currently, it recognises these comments below. Individual components are
		125	separated by colons (C<:>), and should not contain colons themselves -
		126	there is also currently no escaping mechanism provided for this.
		127
		128	=over
		129
		130	=item #:META:RESOURCE:name:type:desc
		131
		132	The RESOURCE comment defines a resource used by the extension, where
		133	C<name> is the resource name, C<type> is the resource type, C<boolean>
		134	or C<string>, and C<desc> is the resource description.
		135
		136	The extension will be autoloaded when this resource is specified or used
		137	as a command line parameter.
		138
		139	Example: matcher provides the C<matcher.launcher> resource by having this
		140	comment:
		141
		142	#:META:RESOURCE:%.launcher:string:default launcher command
		143
		144	Example: load this extension when the C<-tr> command line option or
		145	resource name is used.
		146
		147	#:META:RESOURCE:tr:boolean:set root pixmap as background
		148
		149	=item #:META:OSC:number:desc
		150
		151	The OSC comment specifies an OSC sequence, where C<number> is the
		152	numerical OSC code and C<desc> is a short description that is currently
		153	unused.
		154
		155	This will cause the extension to be autoloaded when the OSC sequence is
		156	used for the first time.
		157
		158	Note that autoloading carries some extra responsibilities with it:
		159	although the terminal cannot really protect itself against malicious
		160	sources of command sequences, therefore relying on the programs running
		161	I<inside> to sanitize data that they output, it is very common for
		162	programs to emit command sequences from untrusted sources.
		163
		164	While this means that extensions should, as a defense-in-depth mechanism,
		165	always consider whether OSC sequences are safe, autoloading automatically
		166	exposes any autoloaded extension in all terminal windows, so extra care
		167	should be taken.
		168
		169	Example: the background extension registers OSC C<20> like this:
		170
		171	#:META:OSC:20:change/query background image
		172
		173	=item #:META:OSC_PERL:prefix:desc
		174
		175	The same as the OSC comment, but for the Perl OSC sequence (C<777>). The
		176	C<prefix> should be unique among extensions, of course, which is most
		177	easily arranged by using the extension name, although this is not
		178	required.
		179
		180	Example: the overlay-osc extension registers its Perl OSC like this:
		181
		182	#:META:OSC_PERL:overlay:man overlay-osc
		183
117	=back	184	=back
118		185
119	=head2 Hooks	186	=head2 Hooks
120		187
121	The following subroutines can be declared in extension files, and will be	188	The following subroutines can be declared in extension files, and will be
122	called whenever the relevant event happens.	189	called whenever the relevant event happens.
123		190
124	The first argument passed to them is an object private to each terminal	191	The first argument passed to them is an extension object as described in
125	and extension package. You can call all C<urxvt::term> methods on it, but	192	the in the C<Extension Objects> section.
126	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
127	object that is shared between all packages is stored in the C<term>
128	member.
129		193
130	All of them must return a boolean value. If it is true, then the event	194	B<All> of these hooks must return a boolean value. If any of the called
131	counts as being I<consumed>, and the invocation of other hooks is skipped,	195	hooks returns true, then the event counts as being I<consumed>, and the
132	and the relevant action might not be carried out by the C++ code.	196	relevant action might not be carried out by the C++ code.
133		197
134	When in doubt, return a false value (preferably C<()>).	198	I<< When in doubt, return a false value (preferably C<()>). >>
135		199
136	=over 4	200	=over
		201
		202	=item on_attach $term
		203
		204	Called when an extension package is attached to a running terminal
		205	instance. Must return true in all cases, and runs with the same
		206	limitations as C<on_init>.
		207
		208	Unlike C<on_init> or C<on_start>, this is called when the extension is
		209	attached to a terminal, regardless of whether the extension is loaded
		210	before or after the terminal is started. Extensions that need to do
		211	something before they work can do it in this callback, as opposed to e.g.
		212	C<on_init>, which might not be called.
137		213
138	=item on_init $term	214	=item on_init $term
139		215
140	Called after a new terminal object has been initialized, but before	216	Called after a new terminal object has been initialized, but before
141	windows are created or the command gets run. Most methods are unsafe to	217	windows are created or the command gets run. Most methods are unsafe to
142	call or deliver senseless data, as terminal size and other characteristics	218	call or deliver senseless data, as terminal size and other characteristics
143	have not yet been determined. You can safely query and change resources,	219	have not yet been determined. You can safely query and change resources
144	though.	220	and options, though. For many purposes the C<on_start> hook is a better
		221	place.
		222
		223	=item on_start $term
		224
		225	Called at the very end of initialisation of a new terminal, just before
		226	trying to map (display) the toplevel and returning to the main loop.
		227
		228	=item on_destroy $term
		229
		230	Called whenever something tries to destroy terminal, when the terminal is
		231	still fully functional (not for long, though).
145		232
146	=item on_reset $term	233	=item on_reset $term
147		234
148	Called after the screen is "reset" for any reason, such as resizing or	235	Called after the screen is "reset" for any reason, such as resizing or
149	control sequences. Here is where you can react on changes to size-related	236	control sequences. Here is where you can react on changes to size-related
150	variables.	237	variables.
151		238
152	=item on_start $term	239	=item on_child_start $term, $pid
153		240
154	Called at the very end of initialisation of a new terminal, just before	241	Called just after the child process has been C<fork>ed.
155	returning to the mainloop.	242
		243	=item on_child_exit $term, $status
		244
		245	Called just after the child process has exited. C<$status> is the status
		246	from C<waitpid>.
156		247
157	=item on_sel_make $term, $eventtime	248	=item on_sel_make $term, $eventtime
158		249
159	Called whenever a selection has been made by the user, but before the	250	Called whenever a selection has been made by the user, but before the
160	selection text is copied, so changes to the beginning, end or type of the	251	selection text is copied, so changes to the beginning, end or type of the
…		…
167		258
168	Called whenever a selection has been copied, but before the selection is	259	Called whenever a selection has been copied, but before the selection is
169	requested from the server. The selection text can be queried and changed	260	requested from the server. The selection text can be queried and changed
170	by calling C<< $term->selection >>.	261	by calling C<< $term->selection >>.
171		262
172	Returning a true value aborts selection grabbing. It will still be hilighted.	263	Returning a true value aborts selection grabbing. It will still be highlighted.
173		264
174	=item on_sel_extend $term	265	=item on_sel_extend $term
175		266
176	Called whenever the user tries to extend the selection (e.g. with a double	267	Called whenever the user tries to extend the selection (e.g. with a double
177	click) and is either supposed to return false (normal operation), or	268	click) and is either supposed to return false (normal operation), or
178	should extend the selection itelf and return true to suppress the built-in	269	should extend the selection itself and return true to suppress the built-in
179	processing.	270	processing. This can happen multiple times, as long as the callback
		271	returns true, it will be called on every further click by the user and is
		272	supposed to enlarge the selection more and more, if possible.
180		273
181	See the F<selection> example extension.	274	See the F<selection> example extension.
182		275
183	=item on_focus_in $term
184
185	Called whenever the window gets the keyboard focus, before urxvt does
186	focus in processing.
187
188	=item on_focus_out $term
189
190	Called wheneever the window loses keyboard focus, before urxvt does focus
191	out processing.
192
193	=item on_view_change $term, $offset	276	=item on_view_change $term, $offset
194		277
195	Called whenever the view offset changes, i..e the user or program	278	Called whenever the view offset changes, i.e. the user or program
196	scrolls. Offset C<0> means display the normal terminal, positive values	279	scrolls. Offset C<0> means display the normal terminal, positive values
197	show this many lines of scrollback.	280	show this many lines of scrollback.
198		281
199	=item on_scroll_back $term, $lines, $saved	282	=item on_scroll_back $term, $lines, $saved
200		283
…		…
204		287
205	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	288	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
206	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	289	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
207	number of lines that will be in the scrollback buffer.	290	number of lines that will be in the scrollback buffer.
208		291
209	=item on_tty_activity $term *NYI*
210
211	Called whenever the program(s) running in the urxvt window send output.
212
213	=item on_osc_seq $term, $string	292	=item on_osc_seq $term, $op, $args, $resp
214		293
		294	Called on every OSC sequence and can be used to suppress it or modify its
		295	behaviour. The default should be to return an empty list. A true value
		296	suppresses execution of the request completely. Make sure you don't get
		297	confused by recursive invocations when you output an OSC sequence within
		298	this callback.
		299
		300	C<on_osc_seq_perl> should be used for new behaviour.
		301
		302	=item on_osc_seq_perl $term, $args, $resp
		303
215	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	304	Called whenever the B<ESC ] 777 ; prefix ; string ST> command sequence
216	operating system command) is processed. Cursor position and other state	305	(OSC = operating system command) is processed. Cursor position and other
217	information is up-to-date when this happens. For interoperability, the	306	state information is up-to-date when this happens. For interoperability,
218	string should start with the extension name and a colon, to distinguish	307	the argument should start with the extension name (sans -osc) or some
219	it from commands for other extensions, and this might be enforced in the	308	other suitable prefix, and a semicolon, to distinguish it from commands
220	future.	309	for other extensions.
		310
		311	For example, C<overlay-osc> uses this:
		312
		313	sub on_osc_seq_perl {
		314	my ($self, $osc, $resp) = @_;
		315
		316	return unless $osc =~ s/^overlay;//;
		317
		318	... process remaining $osc string
		319	}
221		320
222	Be careful not ever to trust (in a security sense) the data you receive,	321	Be careful not ever to trust (in a security sense) the data you receive,
223	as its source can not easily be controleld (e-mail content, messages from	322	as its source can not easily be controlled (e-mail content, messages from
224	other users on the same system etc.).	323	other users on the same system etc.).
		324
		325	For responses, C<$resp> contains the end-of-args separator used by the
		326	sender.
225		327
226	=item on_add_lines $term, $string	328	=item on_add_lines $term, $string
227		329
228	Called whenever text is about to be output, with the text as argument. You	330	Called whenever text is about to be output, with the text as argument. You
229	can filter/change and output the text yourself by returning a true value	331	can filter/change and output the text yourself by returning a true value
230	and calling C<< $term->scr_add_lines >> yourself. Please note that this	332	and calling C<< $term->scr_add_lines >> yourself. Please note that this
231	might be very slow, however, as your hook is called for B<all> text being	333	might be very slow, however, as your hook is called for B<all> text being
232	output.	334	output.
233		335
		336	=item on_tt_write $term, $octets
		337
		338	Called whenever some data is written to the tty/pty and can be used to
		339	suppress or filter tty input.
		340
		341	=item on_tt_paste $term, $octets
		342
		343	Called whenever text is about to be pasted, with the text as argument. You
		344	can filter/change and paste the text yourself by returning a true value
		345	and calling C<< $term->tt_paste >> yourself. C<$octets> is
		346	locale-encoded.
		347
234	=item on_line_update $term, $row	348	=item on_line_update $term, $row
235		349
236	Called whenever a line was updated or changed. Can be used to filter	350	Called whenever a line was updated or changed. Can be used to filter
237	screen output (e.g. underline urls or other useless stuff). Only lines	351	screen output (e.g. underline urls or other useless stuff). Only lines
238	that are being shown will be filtered, and, due to performance reasons,	352	that are being shown will be filtered, and, due to performance reasons,
…		…
245	later with the already-modified line (e.g. if unrelated parts change), so	359	later with the already-modified line (e.g. if unrelated parts change), so
246	you cannot just toggle rendition bits, but only set them.	360	you cannot just toggle rendition bits, but only set them.
247		361
248	=item on_refresh_begin $term	362	=item on_refresh_begin $term
249		363
250	Called just before the screen gets redrawn. Can be used for overlay	364	Called just before the screen gets redrawn. Can be used for overlay or
251	or similar effects by modify terminal contents in refresh_begin, and	365	similar effects by modifying the terminal contents in refresh_begin, and
252	restoring them in refresh_end. The built-in overlay and selection display	366	restoring them in refresh_end. The built-in overlay and selection display
253	code is run after this hook, and takes precedence.	367	code is run after this hook, and takes precedence.
254		368
255	=item on_refresh_end $term	369	=item on_refresh_end $term
256		370
257	Called just after the screen gets redrawn. See C<on_refresh_begin>.	371	Called just after the screen gets redrawn. See C<on_refresh_begin>.
258		372
		373	=item on_action $term, $string
		374
		375	Called whenever an action is invoked for the corresponding extension
		376	(e.g. via a C<extension:string> builtin action bound to a key, see
		377	description of the B<keysym> resource in the urxvt(1) manpage). The
		378	event is simply the action string. Note that an action event is always
		379	associated to a single extension.
		380
259	=item on_keyboard_command $term, $string	381	=item on_user_command $term, $string *DEPRECATED*
260		382
261	Called whenever the user presses a key combination that has a	383	Called whenever a user-configured event is being activated (e.g. via
262	C<perl:string> action bound to it (see description of the B<keysym>	384	a C<perl:string> action bound to a key, see description of the B<keysym>
263	resource in the @@RXVT_NAME@@(1) manpage).	385	resource in the urxvt(1) manpage).
264		386
		387	The event is simply the action string. This interface is going away in
		388	preference to the C<on_action> hook.
		389
		390	=item on_resize_all_windows $term, $new_width, $new_height
		391
		392	Called just after the new window size has been calculated, but before
		393	windows are actually being resized or hints are being set. If this hook
		394	returns a true value, setting of the window hints is being skipped.
		395
		396	=item on_x_event $term, $event
		397
		398	Called on every X event received on the vt window (and possibly other
		399	windows). Should only be used as a last resort. Most event structure
		400	members are not passed.
		401
		402	=item on_root_event $term, $event
		403
		404	Like C<on_x_event>, but is called for events on the root window.
		405
		406	=item on_focus_in $term
		407
		408	Called whenever the window gets the keyboard focus, before rxvt-unicode
		409	does focus in processing.
		410
		411	=item on_focus_out $term
		412
		413	Called whenever the window loses keyboard focus, before rxvt-unicode does
		414	focus out processing.
		415
		416	=item on_configure_notify $term, $event
		417
		418	=item on_property_notify $term, $event
		419
265	=item on_key_press $term, $event, $octets	420	=item on_key_press $term, $event, $keysym, $octets
266		421
267	=item on_key_release $term, $event	422	=item on_key_release $term, $event, $keysym
268		423
269	=item on_button_press $term, $event	424	=item on_button_press $term, $event
270		425
271	=item on_button_release $term, $event	426	=item on_button_release $term, $event
272		427
273	=item on_motion_notify $term, $event	428	=item on_motion_notify $term, $event
274		429
		430	=item on_map_notify $term, $event
		431
		432	=item on_unmap_notify $term, $event
		433
275	Called whenever the corresponding X event is received for the terminal If	434	Called whenever the corresponding X event is received for the terminal. If
276	the hook returns true, then the even will be ignored by rxvt-unicode.	435	the hook returns true, then the event will be ignored by rxvt-unicode.
277		436
278	The event is a hash with most values as named by Xlib (see the XEvent	437	The event is a hash with most values as named by Xlib (see the XEvent
279	manpage), with the additional members C<row> and C<col>, which are the row	438	manpage), with the additional members C<row> and C<col>, which are the
280	and column under the mouse cursor.	439	(real, not screen-based) row and column under the mouse cursor.
281		440
282	C<on_key_press> additionally receives the string rxvt-unicode would	441	C<on_key_press> additionally receives the string rxvt-unicode would
283	output, if any, in locale-specific encoding.	442	output, if any, in locale-specific encoding.
284		443
285	subwindow.	444	=item on_client_message $term, $event
		445
		446	=item on_wm_protocols $term, $event
		447
		448	=item on_wm_delete_window $term, $event
		449
		450	Called when various types of ClientMessage events are received (all with
		451	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		452
		453	=item on_bell $term
		454
		455	Called on receipt of a bell character.
286		456
287	=back	457	=back
288		458
		459	=cut
		460
		461	package urxvt;
		462
		463	use utf8;
		464	use strict qw(vars subs);
		465	use Carp ();
		466	use Scalar::Util ();
		467	use List::Util ();
		468
		469	our $VERSION = 1;
		470	our $TERM;
		471	our @TERM_INIT; # should go, prevents async I/O etc.
		472	our @TERM_EXT; # should go, prevents async I/O etc.
		473	our @HOOKNAME;
		474	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		475	our %OPTION;
		476
		477	our $LIBDIR;
		478	our $RESNAME;
		479	our $RESCLASS;
		480	our $RXVTNAME;
		481
		482	our $NOCHAR = chr 0xffff;
		483
289	=head2 Variables in the C<urxvt> Package	484	=head2 Variables in the C<urxvt> Package
290		485
291	=over 4	486	=over
		487
		488	=item $urxvt::LIBDIR
		489
		490	The rxvt-unicode library directory, where, among other things, the perl
		491	modules and scripts are stored.
		492
		493	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		494
		495	The resource class and name rxvt-unicode uses to look up X resources.
		496
		497	=item $urxvt::RXVTNAME
		498
		499	The basename of the installed binaries, usually C<urxvt>.
292		500
293	=item $urxvt::TERM	501	=item $urxvt::TERM
294		502
295	The current terminal. This variable stores the current C<urxvt::term>	503	The current terminal. This variable stores the current C<urxvt::term>
296	object, whenever a callback/hook is executing.	504	object, whenever a callback/hook is executing.
297		505
		506	=item @urxvt::TERM_INIT
		507
		508	All code references in this array will be called as methods of the next newly
		509	created C<urxvt::term> object (during the C<on_init> phase). The array
		510	gets cleared before the code references that were in it are being executed,
		511	so references can push themselves onto it again if they so desire.
		512
		513	This complements to the perl-eval command line option, but gets executed
		514	first.
		515
		516	=item @urxvt::TERM_EXT
		517
		518	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		519	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		520	but before other extensions. Gets cleared just like C<@TERM_INIT>.
		521
298	=back	522	=back
299		523
300	=head2 Functions in the C<urxvt> Package	524	=head2 Functions in the C<urxvt> Package
301		525
302	=over 4	526	=over
303
304	=item $term = new urxvt [arg...]
305
306	Creates a new terminal, very similar as if you had started it with
307	C<system $binfile, arg...>. Croaks (and probably outputs an error message)
308	if the new instance couldn't be created. Returns C<undef> if the new
309	instance didn't initialise perl, and the terminal object otherwise. The
310	C<init> and C<start> hooks will be called during the call.
311		527
312	=item urxvt::fatal $errormessage	528	=item urxvt::fatal $errormessage
313		529
314	Fatally aborts execution with the given error message. Avoid at all	530	Fatally aborts execution with the given error message (which should
315	costs! The only time this is acceptable is when the terminal process	531	include a trailing newline). Avoid at all costs! The only time this
316	starts up.	532	is acceptable (and useful) is in the init hook, where it prevents the
		533	terminal from starting up.
317		534
318	=item urxvt::warn $string	535	=item urxvt::warn $string
319		536
320	Calls C<rxvt_warn> with the given string which should not include a	537	Calls C<rxvt_warn> with the given string which should include a trailing
321	newline. The module also overwrites the C<warn> builtin with a function	538	newline. The module also overwrites the C<warn> builtin with a function
322	that calls this function.	539	that calls this function.
323		540
324	Using this function has the advantage that its output ends up in the	541	Using this function has the advantage that its output ends up in the
325	correct place, e.g. on stderr of the connecting urxvtc client.	542	correct place, e.g. on stderr of the connecting urxvtc client.
326		543
		544	Messages have a size limit of 1023 bytes currently.
		545
		546	=item @terms = urxvt::termlist
		547
		548	Returns all urxvt::term objects that exist in this process, regardless of
		549	whether they are started, being destroyed etc., so be careful. Only term
		550	objects that have perl extensions attached will be returned (because there
		551	is no urxvt::term object associated with others).
		552
327	=item $time = urxvt::NOW	553	=item $time = urxvt::NOW
328		554
329	Returns the "current time" (as per the event loop).	555	Returns the "current time" (as per the event loop).
		556
		557	=item urxvt::CurrentTime
		558
		559	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		560	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		561	Button4Mask, Button5Mask, AnyModifier
		562
		563	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		564	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		565	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		566	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		567	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		568	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		569	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		570
		571	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		572	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		573	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		574	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		575	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		576	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		577	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		578
		579	Various constants for use in X calls and event processing.
		580
		581	=item urxvt::PrivMode_132, PrivMode_132OK, PrivMode_rVideo, PrivMode_relOrigin,
		582	PrivMode_Screen, PrivMode_Autowrap, PrivMode_aplCUR, PrivMode_aplKP,
		583	PrivMode_HaveBackSpace, PrivMode_BackSpace, PrivMode_ShiftKeys,
		584	PrivMode_VisibleCursor, PrivMode_MouseX10, PrivMode_MouseX11,
		585	PrivMode_scrollBar, PrivMode_TtyOutputInh, PrivMode_Keypress,
		586	PrivMode_smoothScroll, PrivMode_vt52, PrivMode_LFNL, PrivMode_MouseBtnEvent,
		587	PrivMode_MouseAnyEvent, PrivMode_BracketPaste, PrivMode_ExtMouseUTF8,
		588	PrivMode_ExtMouseUrxvt, PrivMode_BlinkingCursor, PrivMode_mouse_report,
		589	PrivMode_Default
		590
		591	Constants for checking DEC private modes.
330		592
331	=back	593	=back
332		594
333	=head2 RENDITION	595	=head2 RENDITION
334		596
…		…
338	The following "macros" deal with changes in rendition sets. You should	600	The following "macros" deal with changes in rendition sets. You should
339	never just create a bitset, you should always modify an existing one,	601	never just create a bitset, you should always modify an existing one,
340	as they contain important information required for correct operation of	602	as they contain important information required for correct operation of
341	rxvt-unicode.	603	rxvt-unicode.
342		604
343	=over 4	605	=over
344		606
345	=item $rend = urxvt::DEFAULT_RSTYLE	607	=item $rend = urxvt::DEFAULT_RSTYLE
346		608
347	Returns the default rendition, as used when the terminal is starting up or	609	Returns the default rendition, as used when the terminal is starting up or
348	being reset. Useful as a base to start when creating renditions.	610	being reset. Useful as a base to start when creating renditions.
349		611
350	=item $rend = urxvt::OVERLAY_RSTYLE	612	=item $rend = urxvt::OVERLAY_RSTYLE
351		613
352	Return the rendition mask used for overlays by default.	614	Return the rendition mask used for overlays by default.
353		615
354	=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline	616	=item $rendbit = urxvt::RS_Bold, urxvt::RS_Italic, urxvt::RS_Blink,
		617	urxvt::RS_RVid, urxvt::RS_Uline
355		618
356	Return the bit that enabled bold, italic, blink, reverse-video and	619	Return the bit that enabled bold, italic, blink, reverse-video and
357	underline, respectively. To enable such a style, just logically OR it into	620	underline, respectively. To enable such a style, just logically OR it into
358	the bitset.	621	the bitset.
359		622
…		…
361		624
362	=item $background = urxvt::GET_BASEBG $rend	625	=item $background = urxvt::GET_BASEBG $rend
363		626
364	Return the foreground/background colour index, respectively.	627	Return the foreground/background colour index, respectively.
365		628
366	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	629	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
367		630
368	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	631	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
		632
		633	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
369		634
370	Replace the foreground/background colour in the rendition mask with the	635	Replace the foreground/background colour in the rendition mask with the
371	specified one.	636	specified one.
372		637
373	=item $value = urxvt::GET_CUSTOM ($rend)	638	=item $value = urxvt::GET_CUSTOM $rend
374		639
375	Return the "custom" value: Every rendition has 5 bits for use by	640	Return the "custom" value: Every rendition has 5 bits for use by
376	extensions. They can be set and changed as you like and are initially	641	extensions. They can be set and changed as you like and are initially
377	zero.	642	zero.
378		643
379	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	644	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
380		645
381	Change the custom value.	646	Change the custom value.
382		647
383	=back	648	=back
384		649
385	=cut	650	=cut
386		651
387	package urxvt;
388
389	use strict;
390	use Scalar::Util ();
391
392	our $TERM;
393	our @HOOKNAME;
394	our $LIBDIR;
395
396	BEGIN {	652	BEGIN {
397	urxvt->bootstrap;
398
399	# overwrite perl's warn	653	# overwrite perl's warn
400	*CORE::GLOBAL::warn = sub {	654	*CORE::GLOBAL::warn = sub {
401	my $msg = join "", @_;	655	my $msg = join "", @_;
402	$msg .= "\n"	656	$msg .= "\n"
403	unless $msg =~ /\n$/;	657	unless $msg =~ /\n$/;
404	urxvt::warn ($msg);	658	urxvt::warn ($msg);
405	};	659	};
406	}	660	}
407		661
408	my @hook_count;	662	no warnings 'utf8';
		663
		664	sub parse_resource {
		665	my ($term, $name, $isarg, $longopt, $flag, $value) = @_;
		666
		667	$term->scan_extensions;
		668
		669	# iterating over all resources has quadratic time overhead
		670	# overall, maybe this could be optimised?
		671	my $r = $term->{meta}{resource};
		672	keys %$r; # reset iterator
		673	while (my ($k, $v) = each %$r) {
		674	my $pattern = $k;
		675	$pattern =~ y/./-/ if $isarg;
		676	my $prefix = $name;
		677	my $suffix;
		678	if ($pattern =~ /\-$/) {
		679	$prefix = substr $name, 0, length $pattern;
		680	$suffix = substr $name, length $pattern;
		681	}
		682	if ($pattern eq $prefix) {
		683	$name = "$urxvt::RESCLASS.$k$suffix";
		684
		685	push @{ $term->{perl_ext_3} }, $v->[0];
		686
		687	return 1 unless $isarg;
		688
		689	if ($v->[1] eq "boolean") {
		690	$term->put_option_db ($name, $flag ? "true" : "false");
		691	return 1;
		692	} else {
		693	$term->put_option_db ($name, $value);
		694	return 1 + 2;
		695	}
		696	}
		697	}
		698
		699	0
		700	}
		701
		702	sub usage {
		703	my ($term, $usage_type) = @_;
		704
		705	$term->scan_extensions;
		706
		707	my $r = $term->{meta}{resource};
		708
		709	for my $pattern (sort keys %$r) {
		710	my ($ext, $type, $desc) = @{ $r->{$pattern} };
		711
		712	$desc .= " (-pe $ext)";
		713
		714	if ($usage_type == 1) {
		715	$pattern =~ y/./-/;
		716	$pattern =~ s/-$/-.../g;
		717
		718	if ($type eq "boolean") {
		719	urxvt::log sprintf " -%-30s %s\n", "/+$pattern", $desc;
		720	} else {
		721	urxvt::log sprintf " -%-30s %s\n", "$pattern $type", $desc;
		722	}
		723	} else {
		724	$pattern =~ s/\.$/.*/g;
		725	urxvt::log sprintf " %-31s %s\n", "$pattern:", $type;
		726	}
		727	}
		728	}
		729
409	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	730	my $verbosity = $ENV{URXVT_PERL_VERBOSITY} // 2;
410		731
411	sub verbose {	732	sub verbose {
412	my ($level, $msg) = @_;	733	my ($level, $msg) = @_;
413	warn "$msg\n" if $level <= $verbosity;	734	warn "$msg\n" if $level <= $verbosity;
414	}	735	}
415		736
416	# find on_xxx subs in the package and register them	737	my %extension_pkg;
417	# as hooks
418	sub register_package($) {
419	my ($pkg) = @_;
420
421	for my $htype (0.. $#HOOKNAME) {
422	my $name = $HOOKNAME[$htype];
423
424	my $ref = $pkg->can ("on_" . lc $name)
425	or next;
426
427	$TERM->{_hook}[$htype]{$pkg} = $ref;
428	$hook_count[$htype]++
429	or set_should_invoke $htype, 1;
430	}
431	}
432
433	my $script_pkg = "script0000";
434	my %script_pkg;
435		738
436	# load a single script into its own package, once only	739	# load a single script into its own package, once only
437	sub script_package($) {	740	sub extension_package($) {
438	my ($path) = @_;	741	my ($path) = @_;
439		742
440	$script_pkg{$path} ||= do {	743	$extension_pkg{$path} ||= do {
441	my $pkg = "urxvt::" . ($script_pkg++);	744	$path =~ /([^\/\\]+)$/;
		745	my $pkg = $1;
		746	$pkg =~ s/[^[:word:]]/_/g;
		747	$pkg = "urxvt::ext::$pkg";
442		748
443	verbose 3, "loading script '$path' into package '$pkg'";	749	verbose 3, "loading extension '$path' into package '$pkg'";
		750
		751	(${"$pkg\::_NAME"} = $path) =~ s/^.*[\\\/]//; # hackish
444		752
445	open my $fh, "<:raw", $path	753	open my $fh, "<:raw", $path
446	or die "$path: $!";	754	or die "$path: $!";
447		755
448	my $source = "package $pkg; use strict; use utf8;\n"	756	my $source =
		757	"package $pkg; use strict qw(vars subs); use utf8; no warnings 'utf8';\n"
449	. "#line 1 \"$path\"\n{\n"	758	. "#line 1 \"$path\"\n{\n"
450	. (do { local $/; <$fh> })	759	. (do { local $/; <$fh> })
451	. "\n};\n1";	760	. "\n};\n1";
452		761
		762	eval $source
453	eval $source or die "$path: $@";	763	or die "$path: $@";
454		764
455	$pkg	765	$pkg
456	}	766	}
457	}	767	}
458		768
…		…
461	# called by the rxvt core	771	# called by the rxvt core
462	sub invoke {	772	sub invoke {
463	local $TERM = shift;	773	local $TERM = shift;
464	my $htype = shift;	774	my $htype = shift;
465		775
466	if ($htype == 0) { # INIT	776	if ($htype == HOOK_INIT) {
467	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	777	$TERM->scan_extensions;
468		778
		779	my %ext_arg;
		780
		781	{
		782	my @init = @TERM_INIT;
		783	@TERM_INIT = ();
		784	$_->($TERM) for @init;
		785	my @pkg = @TERM_EXT;
		786	@TERM_EXT = ();
		787	$TERM->register_package ($_) for @pkg;
		788	}
		789
		790	for (
		791	@{ delete $TERM->{perl_ext_3} },
469	for my $ext (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {	792	(grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2),
470	my @files = grep -f $_, map "$_/$ext", @dirs;	793	) {
		794	if ($_ eq "default") {
471		795
472	if (@files) {	796	$ext_arg{$_} = []
473	register_package script_package $files[0];	797	for qw(selection option-popup selection-popup readline searchable-scrollback confirm-paste);
		798
		799	for ($TERM->_keysym_resources) {
		800	next if /^(?:string|command|builtin|builtin-string|perl)/;
		801	next unless /^([A-Za-z0-9_\-]+):/;
		802
		803	my $ext = $1;
		804
		805	$ext_arg{$ext} = [];
		806	}
		807
		808	} elsif (/^-(.*)$/) { # remove from set
		809	delete $ext_arg{$1};
		810
		811	} elsif (/^\/(.*)$/) { # prohibit loading
		812	undef $TERM->{ext_prohibit}{$1};
		813
		814	} elsif (/^([^<]+)(?:<(.*)>)?$/) { # add to set, clear prohibit status
		815	delete $TERM->{ext_prohibit}{$1};
		816	push @{ $ext_arg{$1} }, defined $2 ? $2 : ();
		817
474	} else {	818	} else {
		819	verbose 2, "cannot parse extension specification '$_', ignoring.";
		820	}
		821	}
		822
		823	$TERM->set_should_invoke (HOOK_OSC_SEQ , +1) if $TERM->{meta}{autoload_osc};
		824	$TERM->set_should_invoke (HOOK_OSC_SEQ_PERL, +1) if $TERM->{meta}{autoload_osc_perl};
		825
		826	for my $ext (sort keys %ext_arg) {
		827	my $path = $TERM->extension_path ($ext);
		828
		829	if (defined $path) {
		830	$TERM->autoload_extension ($ext, $ext_arg{$ext});
		831	} else {
475	warn "perl extension '$ext' not found in perl library search path\n";	832	verbose 2, "perl extension '$ext' not found in perl library search path";
		833	}
		834	}
		835
		836	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		837	warn $@ if $@;
		838	}
		839
		840	if ($htype == HOOK_OSC_SEQ) {
		841	if (my $exts = delete $TERM->{meta}{autoload_osc}{$_[0]}) {
		842	$TERM->autoload_extension ($_->[0]) for @$exts;
		843	}
		844	} elsif ($htype == HOOK_OSC_SEQ_PERL) {
		845	if ($_[0] =~ /^([^;]+)/ and (my $exts = delete $TERM->{meta}{autoload_osc_perl}{$1})) {
		846	$TERM->autoload_extension ($_->[0]) for @$exts;
		847	}
		848	}
		849
		850	$retval = undef;
		851
		852	if (my $cb = $TERM->{_hook}[$htype]) {
		853	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
		854	if $verbosity >= 10;
		855
		856	if ($htype == HOOK_ACTION) {
		857	# this hook is only sent to the extension with the name
		858	# matching the first arg
		859	my $pkg = shift;
		860	$pkg =~ y/-/_/;
		861	$pkg = "urxvt::ext::$pkg";
		862
		863	$cb = $cb->{$pkg}
		864	or return undef; #TODO: maybe warn user?
		865
		866	$cb = { $pkg => $cb };
		867	}
		868
		869	for my $pkg (keys %$cb) {
		870	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg} || $TERM, @_) };
		871	$retval ||= $retval_;
		872
		873	if ($@) {
		874	$TERM->ungrab; # better to lose the grab than the session
		875	warn $@;
		876	}
		877	}
		878
		879	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		880	if $verbosity >= 11;
		881	}
		882
		883	if ($htype == HOOK_DESTROY) {
		884	# clear package objects
		885	%$_ = () for values %{ $TERM->{_pkg} };
		886
		887	# clear package
		888	%$TERM = ();
		889	}
		890
		891	$retval
		892	}
		893
		894	sub SET_COLOR($$$) {
		895	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		896	}
		897
		898	sub rend2mask {
		899	no strict 'refs';
		900	my ($str, $mask) = (@_, 0);
		901	my %color = ( fg => undef, bg => undef );
		902	my @failed;
		903	for my $spec ( split /\s+/, $str ) {
		904	if ( $spec =~ /^([fb]g)[_:-]?(\d+)/i ) {
		905	$color{lc($1)} = $2;
		906	} else {
		907	my $neg = $spec =~ s/^[-^]//;
		908	unless ( exists &{"RS_$spec"} ) {
		909	push @failed, $spec;
		910	next;
		911	}
		912	my $cur = &{"RS_$spec"};
		913	if ( $neg ) {
		914	$mask &= ~$cur;
		915	} else {
		916	$mask |= $cur;
476	}	917	}
477	}	918	}
478	}	919	}
479		920	($mask, @color{qw(fg bg)}, \@failed)
480	$retval = undef;
481
482	if (my $cb = $TERM->{_hook}[$htype]) {
483	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
484	if $verbosity >= 10;
485
486	keys %$cb;
487
488	while (my ($pkg, $cb) = each %$cb) {
489	$retval = $cb->(
490	$TERM->{_pkg}{$pkg} ||= do {
491	my $proxy = bless { }, urxvt::term::proxy::;
492	Scalar::Util::weaken ($proxy->{term} = $TERM);
493	$proxy
494	},
495	@_,
496	) and last;
497	}
498	}
499
500	if ($htype == 1) { # DESTROY
501	# remove hooks if unused
502	if (my $hook = $TERM->{_hook}) {
503	for my $htype (0..$#$hook) {
504	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
505	or set_should_invoke $htype, 0;
506	}
507	}
508
509	# clear package objects
510	%$_ = () for values %{ $TERM->{_pkg} };
511
512	# clear package
513	%$TERM = ();
514	}
515
516	$retval
517	}	921	}
518		922
519	sub urxvt::term::proxy::AUTOLOAD {	923	package urxvt::term::extension;
520	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	924
		925	=head2 The C<urxvt::term::extension> class
		926
		927	Each extension attached to a terminal object is represented by
		928	a C<urxvt::term::extension> object.
		929
		930	You can use these objects, which are passed to all callbacks to store any
		931	state related to the terminal and extension instance.
		932
		933	The methods (And data members) documented below can be called on extension
		934	objects, in addition to call methods documented for the <urxvt::term>
		935	class.
		936
		937	=over
		938
		939	=item $urxvt_term = $self->{term}
		940
		941	Returns the C<urxvt::term> object associated with this instance of the
		942	extension. This member I<must not> be changed in any way.
		943
		944	=cut
		945
		946	our $AUTOLOAD;
		947
		948	sub AUTOLOAD {
		949	$AUTOLOAD =~ /:([^:]+)$/
521	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	950	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
522		951
523	eval qq{	952	eval qq{
524	sub $urxvt::term::proxy::AUTOLOAD {	953	sub $AUTOLOAD {
525	my \$proxy = shift;	954	my \$proxy = shift;
526	\$proxy->{term}->$1 (\@_)	955	\$proxy->{term}->$1 (\@_)
527	}	956	}
528	1	957	1
529	} or die "FATAL: unable to compile method forwarder: $@";	958	} or die "FATAL: unable to compile method forwarder: $@";
530		959
531	goto &$urxvt::term::proxy::AUTOLOAD;	960	goto &$AUTOLOAD;
532	}	961	}
		962
		963	sub DESTROY {
		964	# nop
		965	}
		966
		967	# urxvt::destroy_hook (basically a cheap Guard:: implementation)
		968
		969	sub urxvt::destroy_hook::DESTROY {
		970	${$_[0]}->();
		971	}
		972
		973	sub urxvt::destroy_hook(&) {
		974	bless \shift, urxvt::destroy_hook::
		975	}
		976
		977	=item $self->enable ($hook_name => $cb[, $hook_name => $cb..])
		978
		979	Dynamically enable the given hooks (named without the C<on_> prefix) for
		980	this extension, replacing any hook previously installed via C<enable> in
		981	this extension.
		982
		983	This is useful when you want to overwrite time-critical hooks only
		984	temporarily.
		985
		986	To install additional callbacks for the same hook, you can use the C<on>
		987	method of the C<urxvt::term> class.
		988
		989	=item $self->disable ($hook_name[, $hook_name..])
		990
		991	Dynamically disable the given hooks.
		992
		993	=cut
		994
		995	sub enable {
		996	my ($self, %hook) = @_;
		997	my $pkg = $self->{_pkg};
		998
		999	while (my ($name, $cb) = each %hook) {
		1000	my $htype = $HOOKTYPE{uc $name};
		1001	defined $htype
		1002	or Carp::croak "unsupported hook type '$name'";
		1003
		1004	$self->set_should_invoke ($htype, +1)
		1005	unless exists $self->{term}{_hook}[$htype]{$pkg};
		1006
		1007	$self->{term}{_hook}[$htype]{$pkg} = $cb;
		1008	}
		1009	}
		1010
		1011	sub disable {
		1012	my ($self, @hook) = @_;
		1013	my $pkg = $self->{_pkg};
		1014
		1015	for my $name (@hook) {
		1016	my $htype = $HOOKTYPE{uc $name};
		1017	defined $htype
		1018	or Carp::croak "unsupported hook type '$name'";
		1019
		1020	$self->set_should_invoke ($htype, -1)
		1021	if delete $self->{term}{_hook}[$htype]{$pkg};
		1022	}
		1023	}
		1024
		1025	=item $guard = $self->on ($hook_name => $cb[, $hook_name => $cb..])
		1026
		1027	Similar to the C<enable> enable, but installs additional callbacks for
		1028	the given hook(s) (that is, it doesn't replace existing callbacks), and
		1029	returns a guard object. When the guard object is destroyed the callbacks
		1030	are disabled again.
		1031
		1032	=cut
		1033
		1034	sub urxvt::extension::on_disable::DESTROY {
		1035	my $disable = shift;
		1036
		1037	my $term = delete $disable->{""};
		1038
		1039	while (my ($htype, $id) = each %$disable) {
		1040	delete $term->{_hook}[$htype]{$id};
		1041	$term->set_should_invoke ($htype, -1);
		1042	}
		1043	}
		1044
		1045	sub on {
		1046	my ($self, %hook) = @_;
		1047
		1048	my $term = $self->{term};
		1049
		1050	my %disable = ( "" => $term );
		1051
		1052	while (my ($name, $cb) = each %hook) {
		1053	my $htype = $HOOKTYPE{uc $name};
		1054	defined $htype
		1055	or Carp::croak "unsupported hook type '$name'";
		1056
		1057	$term->set_should_invoke ($htype, +1);
		1058	$term->{_hook}[$htype]{ $disable{$htype} = $cb+0 }
		1059	= sub { shift; $cb->($self, @_) }; # very ugly indeed
		1060	}
		1061
		1062	bless \%disable, "urxvt::extension::on_disable"
		1063	}
		1064
		1065	=item $self->bind_action ($hotkey, $action)
		1066
		1067	=item $self->x_resource ($pattern)
		1068
		1069	=item $self->x_resource_boolean ($pattern)
		1070
		1071	These methods support an additional C<%> prefix for C<$action> or
		1072	C<$pattern> when called on an extension object, compared to the
		1073	C<urxvt::term> methods of the same name - see the description of these
		1074	methods in the C<urxvt::term> class for details.
		1075
		1076	=cut
		1077
		1078	sub bind_action {
		1079	my ($self, $hotkey, $action) = @_;
		1080	$action =~ s/^%:/$_[0]{_name}:/;
		1081	$self->{term}->bind_action ($hotkey, $action)
		1082	}
		1083
		1084	sub x_resource {
		1085	my ($self, $name) = @_;
		1086	$name =~ s/^%(\.|$)/$_[0]{_name}$1/;
		1087	$self->{term}->x_resource ($name)
		1088	}
		1089
		1090	sub x_resource_boolean {
		1091	my ($self, $name) = @_;
		1092	$name =~ s/^%(\.|$)/$_[0]{_name}$1/;
		1093	$self->{term}->x_resource_boolean ($name)
		1094	}
		1095
		1096	=back
		1097
		1098	=cut
		1099
		1100	package urxvt::anyevent;
		1101
		1102	=head2 The C<urxvt::anyevent> Class
		1103
		1104	The sole purpose of this class is to deliver an interface to the
		1105	C<AnyEvent> module - any module using it will work inside urxvt without
		1106	further programming. The only exception is that you cannot wait on
		1107	condition variables, but non-blocking condvar use is ok.
		1108
		1109	In practical terms this means is that you cannot use blocking APIs, but
		1110	the non-blocking variant should work.
		1111
		1112	=cut
		1113
		1114	our $VERSION = '5.23';
		1115
		1116	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		1117	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		1118
		1119	sub timer {
		1120	my ($class, %arg) = @_;
		1121
		1122	my $cb = $arg{cb};
		1123
		1124	urxvt::timer
		1125	->new
		1126	->after ($arg{after}, $arg{interval})
		1127	->cb ($arg{interval} ? $cb : sub {
		1128	$_[0]->stop; # need to cancel manually
		1129	$cb->();
		1130	})
		1131	}
		1132
		1133	sub io {
		1134	my ($class, %arg) = @_;
		1135
		1136	my $cb = $arg{cb};
		1137	my $fd = fileno $arg{fh};
		1138	defined $fd or $fd = $arg{fh};
		1139
		1140	bless [$arg{fh}, urxvt::iow
		1141	->new
		1142	->fd ($fd)
		1143	->events (($arg{poll} =~ /r/ ? 1 : 0)
		1144	| ($arg{poll} =~ /w/ ? 2 : 0))
		1145	->start
		1146	->cb ($cb)
		1147	], urxvt::anyevent::
		1148	}
		1149
		1150	sub idle {
		1151	my ($class, %arg) = @_;
		1152
		1153	my $cb = $arg{cb};
		1154
		1155	urxvt::iw
		1156	->new
		1157	->start
		1158	->cb ($cb)
		1159	}
		1160
		1161	sub child {
		1162	my ($class, %arg) = @_;
		1163
		1164	my $cb = $arg{cb};
		1165
		1166	urxvt::pw
		1167	->new
		1168	->start ($arg{pid})
		1169	->cb (sub {
		1170	$_[0]->stop; # need to cancel manually
		1171	$cb->($_[0]->rpid, $_[0]->rstatus);
		1172	})
		1173	}
		1174
		1175	sub DESTROY {
		1176	$_[0][1]->stop;
		1177	}
		1178
		1179	# only needed for AnyEvent < 6 compatibility
		1180	sub one_event {
		1181	Carp::croak "AnyEvent->one_event blocking wait unsupported in urxvt, use a non-blocking API";
		1182	}
		1183
		1184	package urxvt::term;
533		1185
534	=head2 The C<urxvt::term> Class	1186	=head2 The C<urxvt::term> Class
535		1187
536	=over 4	1188	=over
		1189
		1190	=cut
		1191
		1192	# find on_xxx subs in the package and register them
		1193	# as hooks
		1194	sub register_package {
		1195	my ($self, $pkg, $argv) = @_;
		1196
		1197	return if $self->{_pkg}{$pkg};
		1198
		1199	no strict 'refs';
		1200
		1201	urxvt::verbose 6, "register package $pkg to $self";
		1202
		1203	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1204
		1205	my $proxy = bless {
		1206	_pkg => $pkg,
		1207	_name => ${"$pkg\::_NAME"}, # hackish
		1208	argv => $argv,
		1209	}, $pkg;
		1210	Scalar::Util::weaken ($proxy->{term} = $self);
		1211
		1212	$self->{_pkg}{$pkg} = $proxy;
		1213
		1214	for my $name (@HOOKNAME) {
		1215	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1216	$proxy->enable ($name => $ref);
		1217	}
		1218	}
		1219
		1220	if (my $attach_hook = $pkg->can ("on_attach")) {
		1221	$attach_hook->($proxy)
		1222	or urxvt::verbose 1, "$pkg->on_attach returned false, extension failed to attach";
		1223	}
		1224	}
		1225
		1226	# map extension name to filesystem path
		1227	sub extension_path {
		1228	(grep -f $_, map "$_/$_[1]", $_[0]->perl_libdirs)[0]
		1229	}
		1230
		1231	# load an extension by name
		1232	sub load_extension_file {
		1233	my ($self, $path, $argv) = @_;
		1234
		1235	$self->register_package (urxvt::extension_package $path, $argv);
		1236	}
		1237
		1238	# autoload an extension unless loading it is prohibited
		1239	sub autoload_extension {
		1240	my ($self, $name, $argv) = @_;
		1241
		1242	return if exists $self->{ext_prohibit}{$name};
		1243
		1244	my $path = $self->extension_path ($name)
		1245	// return urxvt::verbose 2, "perl extension '$name' not found in perl library search path (during autoload)";
		1246
		1247	$self->load_extension_file ($path, $argv);
		1248	}
		1249
		1250	sub perl_libdirs {
		1251	map { split /:/ }
		1252	$_[0]->resource ("perl_lib"),
		1253	$ENV{URXVT_PERL_LIB},
		1254	"$ENV{HOME}/.urxvt/ext",
		1255	"$LIBDIR/perl"
		1256	}
		1257
		1258	# scan for available extensions and collect their metadata
		1259	sub scan_extensions {
		1260	my ($self) = @_;
		1261
		1262	return if exists $self->{meta};
		1263
		1264	my @urxvtdirs = perl_libdirs $self;
		1265	# my @cpandirs = grep -d, map "$_/URxvt/Ext", @INC;
		1266
		1267	$self->{meta} = \my %allmeta;
		1268
		1269	# first gather extensions
		1270
		1271	my $gather = sub {
		1272	my ($dir, $core) = @_;
		1273
		1274	opendir my $fh, $dir
		1275	or return;
		1276
		1277	for my $ext (readdir $fh) {
		1278	$ext !~ /^\./
		1279	or next;
		1280
		1281	open my $fh, "<", "$dir/$ext"
		1282	or next;
		1283
		1284	-f $fh
		1285	or next;
		1286
		1287	$ext =~ s/\.uext$// or $core
		1288	or next;
		1289
		1290	my %meta = (dir => $dir);
		1291
		1292	while (<$fh>) {
		1293	if (/^#:META:(?:X_)?RESOURCE:(.*)/) {
		1294	my ($pattern, $type, $desc) = split /:/, $1;
		1295	$pattern =~ s/^%(\.|$)/$ext$1/g; # % in pattern == extension name
		1296	if ($pattern =~ /[^a-zA-Z0-9\-\.]/) {
		1297	warn "$dir/$ext: meta resource '$pattern' contains illegal characters (not alphanumeric nor . nor *)\n";
		1298	} else {
		1299	$meta{resource}{$pattern} = [$ext, $type, $desc];
		1300	}
		1301
		1302	} elsif (/^#:META:OSC:([0-9]+):(.*)/) {
		1303	push @{$allmeta{autoload_osc}{$1}}, [$ext, $2];
		1304
		1305	} elsif (/^#:META:OSC_PERL:([^:]+):(.*)/) {
		1306	push @{$allmeta{autoload_osc_perl}{$1}}, [$ext, $2];
		1307
		1308	} elsif (/^\s*(?:#|$)/) {
		1309	# skip other comments and empty lines
		1310
		1311	} else {
		1312	last; # stop parsing on first non-empty non-comment line
		1313	}
		1314	}
		1315
		1316	$allmeta{ext}{$ext} = \%meta;
		1317	}
		1318	};
		1319
		1320	# $gather->($_, 0) for @cpandirs;
		1321	$gather->($_, 1) for @urxvtdirs;
		1322
		1323	# and now merge resources
		1324
		1325	$allmeta{resource} = \my %resource;
		1326
		1327	while (my ($k, $v) = each %{ $allmeta{ext} }) {
		1328	#TODO: should check for extensions overriding each other
		1329	%resource = (%resource, %{ $v->{resource} });
		1330	}
		1331	}
		1332
		1333	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1334
		1335	Creates a new terminal, very similar as if you had started it with system
		1336	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1337	hash which defines the environment of the new terminal.
		1338
		1339	Croaks (and probably outputs an error message) if the new instance
		1340	couldn't be created. Returns C<undef> if the new instance didn't
		1341	initialise perl, and the terminal object otherwise. The C<init> and
		1342	C<start> hooks will be called before this call returns, and are free to
		1343	refer to global data (which is race free).
		1344
		1345	=cut
		1346
		1347	sub new {
		1348	my ($class, $env, @args) = @_;
		1349
		1350	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1351	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1352
		1353	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1354	}
537		1355
538	=item $term->destroy	1356	=item $term->destroy
539		1357
540	Destroy the terminal object (close the window, free resources etc.).	1358	Destroy the terminal object (close the window, free resources
		1359	etc.). Please note that urxvt will not exit as long as any event
		1360	watchers (timers, io watchers) are still active.
		1361
		1362	=item $term->exec_async ($cmd[, @args])
		1363
		1364	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1365	("starts") programs in the background. This function takes care of setting
		1366	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1367	be preferred over explicit calls to C<exec> or C<system>.
		1368
		1369	It also sets the C<URXVT_EXT_WINDOWID> environment variable to the window
		1370	ID of the terminal (C<< $self->parent >>), similar to the C<WINDOWID>
		1371	variable set for the process spawned inside the terminal.
		1372
		1373	Returns the pid of the subprocess or C<undef> on error.
		1374
		1375	=cut
		1376
		1377	sub exec_async {
		1378	my $self = shift;
		1379
		1380	my $pid = fork;
		1381
		1382	return $pid
		1383	if !defined $pid or $pid;
		1384
		1385	%ENV = (
		1386	%{ $self->env },
		1387	URXVT_EXT_WINDOWID => $self->parent,
		1388	);
		1389
		1390	exec @_;
		1391	urxvt::_exit 255;
		1392	}
		1393
		1394	=item $isset = $term->option ($optval[, $set])
		1395
		1396	Returns true if the option specified by C<$optval> is enabled, and
		1397	optionally change it. All option values are stored by name in the hash
		1398	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		1399
		1400	Here is a likely non-exhaustive list of option names, please see the
		1401	source file F</src/optinc.h> to see the actual list:
		1402
		1403	borderLess buffered console cursorBlink cursorUnderline hold iconic
		1404	insecure intensityStyles iso14755 iso14755_52 jumpScroll loginShell
		1405	mapAlert meta8 mouseWheelScrollPage override_redirect pastableTabs
		1406	pointerBlank reverseVideo scrollBar scrollBar_floating scrollBar_right
		1407	scrollTtyKeypress scrollTtyOutput scrollWithBuffer secondaryScreen
		1408	secondaryScroll skipBuiltinGlyphs skipScroll transparent tripleclickwords
		1409	urgentOnBell utmpInhibit visualBell disablePasteBrackets
541		1410
542	=item $value = $term->resource ($name[, $newval])	1411	=item $value = $term->resource ($name[, $newval])
543		1412
544	Returns the current resource value associated with a given name and	1413	Returns the current resource value associated with a given name and
545	optionally sets a new value. Setting values is most useful in the C<init>	1414	optionally sets a new value. Setting values is most useful in the C<init>
…		…
554	likely change).	1423	likely change).
555		1424
556	Please note that resource strings will currently only be freed when the	1425	Please note that resource strings will currently only be freed when the
557	terminal is destroyed, so changing options frequently will eat memory.	1426	terminal is destroyed, so changing options frequently will eat memory.
558		1427
559	Here is a a likely non-exhaustive list of resource names, not all of which	1428	Here is a likely non-exhaustive list of resource names, not all of which
560	are supported in every build, please see the source to see the actual	1429	are supported in every build, please see the source file F</src/rsinc.h>
561	list:	1430	to see the actual list:
562		1431
563	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1432	answerbackstring backgroundPixmap backspace_key blurradius
564	borderLess color cursorBlink cursorUnderline cutchars delete_key	1433	boldFont boldItalicFont borderLess buffered chdir color cursorBlink
565	display_name embed ext_bwidth fade font geometry hold iconName	1434	cursorUnderline cutchars delete_key depth display_name embed ext_bwidth
566	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1435	fade font geometry hold iconName iconfile imFont imLocale inputMethod
		1436	insecure int_bwidth intensityStyles iso14755 iso14755_52 italicFont
567	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1437	jumpScroll letterSpace lineSpace loginShell mapAlert meta8 modifier
568	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1438	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
569	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1439	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
570	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1440	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
571	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1441	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
572	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1442	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
573	shade term_name title transparent transparent_all tripleclickwords	1443	secondaryScreen secondaryScroll shade skipBuiltinGlyphs skipScroll
574	utmpInhibit visualBell	1444	term_name title transient_for transparent tripleclickwords urgentOnBell
		1445	utmpInhibit visualBell rewrapMode disablePasteBrackets
575		1446
576	=cut	1447	=cut
577		1448
578	sub urxvt::term::resource($$;$) {	1449	sub resource($$;$) {
579	my ($self, $name) = (shift, shift);	1450	my ($self, $name) = (shift, shift);
580	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1451	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
581	goto &urxvt::term::_resource;	1452	goto &urxvt::term::_resource
582	}	1453	}
		1454
		1455	=item $value = $term->x_resource ($pattern)
		1456
		1457	Returns the X-Resource for the given pattern, excluding the program or
		1458	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1459	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1460	resource with that pattern exists.
		1461
		1462	Extensions that define extra resources also need to call this method
		1463	to access their values.
		1464
		1465	If the method is called on an extension object (basically, from an
		1466	extension), then the special prefix C<%.> will be replaced by the name of
		1467	the extension and a dot, and the lone string C<%> will be replaced by the
		1468	extension name itself. This makes it possible to code extensions so you
		1469	can rename them and get a new set of resources without having to change
		1470	the actual code.
		1471
		1472	This method should only be called during the C<on_start> hook, as there is
		1473	only one resource database per display, and later invocations might return
		1474	the wrong resources.
		1475
		1476	=item $value = $term->x_resource_boolean ($pattern)
		1477
		1478	Like C<x_resource>, above, but interprets the string value as a boolean
		1479	and returns C<1> for true values, C<0> for false values and C<undef> if
		1480	the resource or option isn't specified.
		1481
		1482	You should always use this method to parse boolean resources.
		1483
		1484	=cut
		1485
		1486	sub x_resource_boolean {
		1487	my $res = &x_resource;
		1488
		1489	$res =~ /^\s*(?:true|yes|on|1)\s*$/i ? 1 : defined $res && 0
		1490	}
		1491
		1492	=item $action = $term->lookup_keysym ($keysym, $state)
		1493
		1494	Returns the action bound to key combination C<($keysym, $state)>,
		1495	if a binding for it exists, and C<undef> otherwise.
		1496
		1497	=item $success = $term->bind_action ($key, $action)
		1498
		1499	Adds a key binding exactly as specified via a C<keysym> resource. See the
		1500	C<keysym> resource in the urxvt(1) manpage.
		1501
		1502	To add default bindings for actions, an extension should call C<<
		1503	->bind_action >> in its C<init> hook for every such binding. Doing it
		1504	in the C<init> hook allows users to override or remove the binding
		1505	again.
		1506
		1507	Example: the C<searchable-scrollback> by default binds itself
		1508	on C<Meta-s>, using C<< $self->bind_action >>, which calls C<<
		1509	$term->bind_action >>.
		1510
		1511	sub init {
		1512	my ($self) = @_;
		1513
		1514	$self->bind_action ("M-s" => "%:start");
		1515	}
583		1516
584	=item $rend = $term->rstyle ([$new_rstyle])	1517	=item $rend = $term->rstyle ([$new_rstyle])
585		1518
586	Return and optionally change the current rendition. Text that is output by	1519	Return and optionally change the current rendition. Text that is output by
587	the terminal application will use this style.	1520	the terminal application will use this style.
…		…
595		1528
596	=item ($row, $col) = $term->selection_beg ([$row, $col])	1529	=item ($row, $col) = $term->selection_beg ([$row, $col])
597		1530
598	=item ($row, $col) = $term->selection_end ([$row, $col])	1531	=item ($row, $col) = $term->selection_end ([$row, $col])
599		1532
600	Return the current values of the selection mark, begin or end positions,	1533	Return the current values of the selection mark, begin or end positions.
601	and optionally set them to new values.
602		1534
		1535	When arguments are given, then the selection coordinates are set to
		1536	C<$row> and C<$col>, and the selection screen is set to the current
		1537	screen.
		1538
		1539	=item $screen = $term->selection_screen ([$screen])
		1540
		1541	Returns the current selection screen, and then optionally sets it.
		1542
		1543	=item $term->selection_make ($eventtime[, $rectangular])
		1544
		1545	Tries to make a selection as set by C<selection_beg> and
		1546	C<selection_end>. If C<$rectangular> is true (default: false), a
		1547	rectangular selection will be made. This is the preferred function to make
		1548	a selection.
		1549
603	=item $success = $term->selection_grab ($eventtime)	1550	=item $success = $term->selection_grab ($eventtime[, $clipboard])
604		1551
605	Try to request the primary selection from the server (for example, as set	1552	Try to acquire ownership of the primary (clipboard if C<$clipboard> is
606	by the next method).	1553	true) selection from the server. The corresponding text can be set
		1554	with the next method. No visual feedback will be given. This function
		1555	is mostly useful from within C<on_sel_grab> hooks.
607		1556
608	=item $oldtext = $term->selection ([$newtext])	1557	=item $oldtext = $term->selection ([$newtext, $clipboard])
609		1558
610	Return the current selection text and optionally replace it by C<$newtext>.	1559	Return the current selection (clipboard if C<$clipboard> is true) text
		1560	and optionally replace it by C<$newtext>.
611		1561
		1562	=item $term->selection_clear ([$clipboard])
		1563
		1564	Revoke ownership of the primary (clipboard if C<$clipboard> is true) selection.
		1565
612	#=item $term->overlay ($x, $y, $text)	1566	=item $term->overlay_simple ($x, $y, $text)
613	#	1567
614	#Create a simple multi-line overlay box. See the next method for details.	1568	Create a simple multi-line overlay box. See the next method for details.
615	#	1569
616	#=cut	1570	=cut
617	#	1571
618	#sub urxvt::term::scr_overlay {	1572	sub overlay_simple {
619	# my ($self, $x, $y, $text) = @_;	1573	my ($self, $x, $y, $text) = @_;
620	#	1574
621	# my @lines = split /\n/, $text;	1575	my @lines = split /\n/, $text;
622	#	1576
623	# my $w = 0;	1577	my $w = List::Util::max map $self->strwidth ($_), @lines;
624	# for (map $self->strwidth ($_), @lines) {	1578
625	# $w = $_ if $w < $_;
626	# }
627	#
628	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);	1579	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
629	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1580	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
630	#}	1581
		1582	$overlay
		1583	}
631		1584
632	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1585	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
633		1586
634	Create a new (empty) overlay at the given position with the given	1587	Create a new (empty) overlay at the given position with the given
635	width/height. C<$rstyle> defines the initial rendition style	1588	width/height. C<$rstyle> defines the initial rendition style
…		…
644	This method returns an urxvt::overlay object. The overlay will be visible	1597	This method returns an urxvt::overlay object. The overlay will be visible
645	as long as the perl object is referenced.	1598	as long as the perl object is referenced.
646		1599
647	The methods currently supported on C<urxvt::overlay> objects are:	1600	The methods currently supported on C<urxvt::overlay> objects are:
648		1601
649	=over 4	1602	=over
650		1603
651	=item $overlay->set ($x, $y, $text, $rend)	1604	=item $overlay->set ($x, $y, $text[, $rend])
652		1605
653	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts	1606	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
654	text in rxvt-unicode's special encoding and an array of rendition values	1607	text in rxvt-unicode's special encoding and an array of rendition values
655	at a specific position inside the overlay.	1608	at a specific position inside the overlay.
656		1609
		1610	If C<$rend> is missing, then the rendition will not be changed.
		1611
657	=item $overlay->hide	1612	=item $overlay->hide
658		1613
659	If visible, hide the overlay, but do not destroy it.	1614	If visible, hide the overlay, but do not destroy it.
660		1615
661	=item $overlay->show	1616	=item $overlay->show
662		1617
663	If hidden, display the overlay again.	1618	If hidden, display the overlay again.
664		1619
665	=back	1620	=back
		1621
		1622	=item $popup = $term->popup ($event)
		1623
		1624	Creates a new C<urxvt::popup> object that implements a popup menu. The
		1625	C<$event> I<must> be the event causing the menu to pop up (a button event,
		1626	currently).
		1627
		1628	=cut
		1629
		1630	sub popup {
		1631	my ($self, $event) = @_;
		1632
		1633	$self->grab ($event->{time}, 1)
		1634	or return;
		1635
		1636	my $popup = bless {
		1637	term => $self,
		1638	event => $event,
		1639	}, urxvt::popup::;
		1640
		1641	Scalar::Util::weaken $popup->{term};
		1642
		1643	$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
		1644	Scalar::Util::weaken $self->{_destroy}{$popup};
		1645
		1646	$popup
		1647	}
666		1648
667	=item $cellwidth = $term->strwidth ($string)	1649	=item $cellwidth = $term->strwidth ($string)
668		1650
669	Returns the number of screen-cells this string would need. Correctly	1651	Returns the number of screen-cells this string would need. Correctly
670	accounts for wide and combining characters.	1652	accounts for wide and combining characters.
671		1653
672	=item $octets = $term->locale_encode ($string)	1654	=item $octets = $term->locale_encode ($string)
673		1655
674	Convert the given text string into the corresponding locale encoding.	1656	Convert the given text string into the corresponding locale
		1657	encoding. Returns C<undef> if C<$string> is C<undef>.
675		1658
676	=item $string = $term->locale_decode ($octets)	1659	=item $string = $term->locale_decode ($octets)
677		1660
678	Convert the given locale-encoded octets into a perl string.	1661	Convert the given locale-encoded octets into a perl string. Returns
		1662	C<undef> if C<$octets> is C<undef>.
		1663
		1664	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1665
		1666	XORs the rendition values in the given span with the provided value
		1667	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1668	refresh hooks to provide effects similar to the selection.
		1669
		1670	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1671
		1672	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1673	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1674	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1675	it instead. Both styles I<MUST NOT> contain font styles.
		1676
		1677	=item $term->scr_bell
		1678
		1679	Ring the bell!
679		1680
680	=item $term->scr_add_lines ($string)	1681	=item $term->scr_add_lines ($string)
681		1682
682	Write the given text string to the screen, as if output by the application	1683	Write the given text string to the screen, as if output by the application
683	running inside the terminal. It may not contain command sequences (escape	1684	running inside the terminal. It may not contain command sequences (escape
684	codes), but is free to use line feeds, carriage returns and tabs. The	1685	codes - see C<cmd_parse> for that), but is free to use line feeds,
685	string is a normal text string, not in locale-dependent encoding.	1686	carriage returns and tabs. The string is a normal text string, not in
		1687	locale-dependent encoding.
686		1688
687	Normally its not a good idea to use this function, as programs might be	1689	Normally its not a good idea to use this function, as programs might be
688	confused by changes in cursor position or scrolling. Its useful inside a	1690	confused by changes in cursor position or scrolling. Its useful inside a
689	C<on_add_lines> hook, though.	1691	C<on_add_lines> hook, though.
690		1692
		1693	=item $term->scr_change_screen ($screen)
		1694
		1695	Switch to given screen - 0 primary, 1 secondary.
		1696
691	=item $term->cmd_parse ($octets)	1697	=item $term->cmd_parse ($octets)
692		1698
693	Similar to C<scr_add_lines>, but the argument must be in the	1699	Similar to C<scr_add_lines>, but the argument must be in the
694	locale-specific encoding of the terminal and can contain command sequences	1700	locale-specific encoding of the terminal and can contain command sequences
695	(escape codes) that will be interpreted.	1701	(escape codes) that will be interpreted.
696		1702
697	=item $term->tt_write ($octets)	1703	=item $term->tt_write ($octets)
698		1704
699	Write the octets given in C<$data> to the tty (i.e. as program input). To	1705	Write the octets given in C<$octets> to the tty (i.e. as user input
		1706	to the program, see C<cmd_parse> for the opposite direction). To pass
700	pass characters instead of octets, you should convert your strings first	1707	characters instead of octets, you should convert your strings first to the
701	to the locale-specific encoding using C<< $term->locale_encode >>.	1708	locale-specific encoding using C<< $term->locale_encode >>.
		1709
		1710	=item $term->tt_write_user_input ($octets)
		1711
		1712	Like C<tt_write>, but should be used when writing strings in response to
		1713	the user pressing a key, to invoke the additional actions requested by
		1714	the user for that case (C<tt_write> doesn't do that).
		1715
		1716	The typical use case would be inside C<on_action> hooks.
		1717
		1718	=item $term->tt_paste ($octets)
		1719
		1720	Write the octets given in C<$octets> to the tty as a paste, converting NL to
		1721	CR and bracketing the data with control sequences if bracketed paste mode
		1722	is set.
		1723
		1724	=item $old_events = $term->pty_ev_events ([$new_events])
		1725
		1726	Replaces the event mask of the pty watcher by the given event mask. Can
		1727	be used to suppress input and output handling to the pty/tty. See the
		1728	description of C<< urxvt::timer->events >>. Make sure to always restore
		1729	the previous value.
		1730
		1731	=item $fd = $term->pty_fd
		1732
		1733	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1734	is used.
702		1735
703	=item $windowid = $term->parent	1736	=item $windowid = $term->parent
704		1737
705	Return the window id of the toplevel window.	1738	Return the window id of the toplevel window.
706		1739
707	=item $windowid = $term->vt	1740	=item $windowid = $term->vt
708		1741
709	Return the window id of the terminal window.	1742	Return the window id of the terminal window.
710		1743
		1744	=item $term->vt_emask_add ($x_event_mask)
		1745
		1746	Adds the specified events to the vt event mask. Useful e.g. when you want
		1747	to receive pointer events all the times:
		1748
		1749	$term->vt_emask_add (urxvt::PointerMotionMask);
		1750
		1751	=item $term->set_urgency ($set)
		1752
		1753	Enable/disable the urgency hint on the toplevel window.
		1754
		1755	=item $term->focus_in
		1756
		1757	=item $term->focus_out
		1758
		1759	=item $term->key_press ($state, $keycode[, $time])
		1760
		1761	=item $term->key_release ($state, $keycode[, $time])
		1762
		1763	Deliver various fake events to to terminal.
		1764
711	=item $window_width = $term->width	1765	=item $window_width = $term->width ([$new_value])
712		1766
713	=item $window_height = $term->height	1767	=item $window_height = $term->height ([$new_value])
714		1768
715	=item $font_width = $term->fwidth	1769	=item $font_width = $term->fwidth ([$new_value])
716		1770
717	=item $font_height = $term->fheight	1771	=item $font_height = $term->fheight ([$new_value])
718		1772
719	=item $font_ascent = $term->fbase	1773	=item $font_ascent = $term->fbase ([$new_value])
720		1774
721	=item $terminal_rows = $term->nrow	1775	=item $terminal_rows = $term->nrow ([$new_value])
722		1776
723	=item $terminal_columns = $term->ncol	1777	=item $terminal_columns = $term->ncol ([$new_value])
724		1778
725	=item $has_focus = $term->focus	1779	=item $has_focus = $term->focus ([$new_value])
726		1780
727	=item $is_mapped = $term->mapped	1781	=item $is_mapped = $term->mapped ([$new_value])
728		1782
729	=item $max_scrollback = $term->saveLines	1783	=item $max_scrollback = $term->saveLines ([$new_value])
730		1784
731	=item $nrow_plus_saveLines = $term->total_rows	1785	=item $nrow_plus_saveLines = $term->total_rows ([$new_value])
732		1786
733	=item $lines_in_scrollback = $term->nsaved	1787	=item $topmost_scrollback_row = $term->top_row ([$new_value])
734		1788
735	Return various integers describing terminal characteristics.	1789	Return various integers describing terminal characteristics. If an
		1790	argument is given, changes the value and returns the previous one.
		1791
		1792	=item $x_display = $term->display_id
		1793
		1794	Return the DISPLAY used by rxvt-unicode.
		1795
		1796	=item $lc_ctype = $term->locale
		1797
		1798	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1799
		1800	=item $env = $term->env
		1801
		1802	Returns a copy of the environment in effect for the terminal as a hashref
		1803	similar to C<\%ENV>.
		1804
		1805	=item @envv = $term->envv
		1806
		1807	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1808
		1809	=item @argv = $term->argv
		1810
		1811	Return the argument vector as this terminal, similar to @ARGV, but
		1812	includes the program name as first element.
		1813
		1814	=cut
		1815
		1816	sub env {
		1817	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1818	}
		1819
		1820	=item $modifiermask = $term->ModLevel3Mask
		1821
		1822	=item $modifiermask = $term->ModMetaMask
		1823
		1824	=item $modifiermask = $term->ModNumLockMask
		1825
		1826	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1827	AltGr), the meta key (often Alt) and the num lock key, if applicable.
		1828
		1829	=item $screen = $term->current_screen
		1830
		1831	Returns the currently displayed screen (0 primary, 1 secondary).
		1832
		1833	=item $cursor_is_hidden = $term->hidden_cursor
		1834
		1835	Returns whether the cursor is currently hidden or not.
		1836
		1837	=item $priv_modes = $term->priv_modes
		1838
		1839	Returns a bitset with the state of DEC private modes.
		1840
		1841	Example:
		1842
		1843	if ($term->priv_modes & urxvt::PrivMode_mouse_report) {
		1844	# mouse reporting is turned on
		1845	}
736		1846
737	=item $view_start = $term->view_start ([$newvalue])	1847	=item $view_start = $term->view_start ([$newvalue])
738		1848
739	Returns the negative row number of the topmost line. Minimum value is	1849	Returns the row number of the topmost displayed line and changes it,
740	C<0>, which displays the normal terminal contents. Larger values scroll	1850	if an argument is given. Values greater than or equal to C<0> display
741	this many lines into the scrollback buffer.	1851	the terminal contents. Lower values scroll this many lines into the
		1852	scrollback buffer.
742		1853
743	=item $term->want_refresh	1854	=item $term->want_refresh
744		1855
745	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1856	Requests a screen refresh. At the next opportunity, rxvt-unicode will
746	compare the on-screen display with its stored representation. If they	1857	compare the on-screen display with its stored representation. If they
747	differ, it redraws the differences.	1858	differ, it redraws the differences.
748		1859
749	Used after changing terminal contents to display them.	1860	Used after changing terminal contents to display them.
750		1861
		1862	=item $term->refresh_check
		1863
		1864	Checks if a refresh has been requested and, if so, schedules one.
		1865
751	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])	1866	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
752		1867
753	Returns the text of the entire row with number C<$row_number>. Row C<0>	1868	Returns the text of the entire row with number C<$row_number>. Row C<< $term->top_row >>
754	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost	1869	is the topmost terminal line, row C<< $term->nrow-1 >> is the bottommost
755	terminal line. The scrollback buffer starts at line C<-1> and extends to
756	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line	1870	terminal line. Nothing will be returned if a nonexistent line
757	is requested.	1871	is requested.
758		1872
759	If C<$new_text> is specified, it will replace characters in the current	1873	If C<$new_text> is specified, it will replace characters in the current
760	line, starting at column C<$start_col> (default C<0>), which is useful	1874	line, starting at column C<$start_col> (default C<0>), which is useful
761	to replace only parts of a line. The font index in the rendition will	1875	to replace only parts of a line. The font index in the rendition will
762	automatically be updated.	1876	automatically be updated.
763		1877
764	C<$text> is in a special encoding: tabs and wide characters that use more	1878	C<$text> is in a special encoding: tabs and wide characters that use more
765	than one cell when displayed are padded with urxvt::NOCHAR characters	1879	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
766	(C<chr 65535>). Characters with combining characters and other characters	1880	characters. Characters with combining characters and other characters that
767	that do not fit into the normal tetx encoding will be replaced with	1881	do not fit into the normal text encoding will be replaced with characters
768	characters in the private use area.	1882	in the private use area.
769		1883
770	You have to obey this encoding when changing text. The advantage is	1884	You have to obey this encoding when changing text. The advantage is
771	that C<substr> and similar functions work on screen cells and not on	1885	that C<substr> and similar functions work on screen cells and not on
772	characters.	1886	characters.
773		1887
…		…
801		1915
802	Create and return a new C<urxvt::line> object that stores information	1916	Create and return a new C<urxvt::line> object that stores information
803	about the logical line that row C<$row_number> is part of. It supports the	1917	about the logical line that row C<$row_number> is part of. It supports the
804	following methods:	1918	following methods:
805		1919
806	=over 4	1920	=over
807		1921
808	=item $text = $line->t ([$new_text])	1922	=item $text = $line->t ([$new_text])
809		1923
810	Returns or replaces the full text of the line, similar to C<ROW_t>	1924	Returns or replaces the full text of the line, similar to C<ROW_t>
811		1925
…		…
824	Return the row number of the first/last row of the line, respectively.	1938	Return the row number of the first/last row of the line, respectively.
825		1939
826	=item $offset = $line->offset_of ($row, $col)	1940	=item $offset = $line->offset_of ($row, $col)
827		1941
828	Returns the character offset of the given row|col pair within the logical	1942	Returns the character offset of the given row|col pair within the logical
829	line.	1943	line. Works for rows outside the line, too, and returns corresponding
		1944	offsets outside the string.
830		1945
831	=item ($row, $col) = $line->coord_of ($offset)	1946	=item ($row, $col) = $line->coord_of ($offset)
832		1947
833	Translates a string offset into terminal coordinates again.	1948	Translates a string offset into terminal coordinates again.
834		1949
835	=back	1950	=back
836		1951
837	=cut	1952	=cut
838		1953
839	sub urxvt::term::line {	1954	sub line {
840	my ($self, $row) = @_;	1955	my ($self, $row) = @_;
841		1956
842	my $maxrow = $self->nrow - 1;	1957	my $maxrow = $self->nrow - 1;
843		1958
844	my ($beg, $end) = ($row, $row);	1959	my ($beg, $end) = ($row, $row);
…		…
856	}	1971	}
857		1972
858	sub urxvt::line::t {	1973	sub urxvt::line::t {
859	my ($self) = @_;	1974	my ($self) = @_;
860		1975
861	if (@_ > 1)	1976	if (@_ > 1) {
862	{
863	$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})	1977	$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
864	for $self->{beg} .. $self->{end};	1978	for $self->{beg} .. $self->{end};
865	}	1979	}
866		1980
867	defined wantarray &&	1981	defined wantarray &&
868	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),	1982	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
869	0, $self->{len}	1983	0, $self->{len}
870	}	1984	}
871		1985
872	sub urxvt::line::r {	1986	sub urxvt::line::r {
873	my ($self) = @_;	1987	my ($self) = @_;
874		1988
875	if (@_ > 1)	1989	if (@_ > 1) {
876	{
877	$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})	1990	$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
878	for $self->{beg} .. $self->{end};	1991	for $self->{beg} .. $self->{end};
879	}	1992	}
880		1993
881	if (defined wantarray) {	1994	if (defined wantarray) {
882	my $rend = [	1995	my $rend = [
883	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}	1996	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
884	];	1997	];
…		…
908	$offset / $self->{ncol} + $self->{beg},	2021	$offset / $self->{ncol} + $self->{beg},
909	$offset % $self->{ncol}	2022	$offset % $self->{ncol}
910	)	2023	)
911	}	2024	}
912		2025
913	=item ($row, $col) = $line->coord_of ($offset)
914	=item $text = $term->special_encode $string	2026	=item $text = $term->special_encode $string
915		2027
916	Converts a perl string into the special encoding used by rxvt-unicode,	2028	Converts a perl string into the special encoding used by rxvt-unicode,
917	where one character corresponds to one screen cell. See	2029	where one character corresponds to one screen cell. See
918	C<< $term->ROW_t >> for details.	2030	C<< $term->ROW_t >> for details.
919		2031
920	=item $string = $term->special_decode $text	2032	=item $string = $term->special_decode $text
921		2033
922	Converts rxvt-unicodes text reprsentation into a perl string. See	2034	Converts rxvt-unicode's text representation into a perl string. See
923	C<< $term->ROW_t >> for details.	2035	C<< $term->ROW_t >> for details.
924		2036
		2037	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		2038
		2039	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		2040
		2041	Register/unregister a synchronous button grab. See the XGrabButton
		2042	manpage.
		2043
		2044	=item $success = $term->grab ($eventtime[, $sync])
		2045
		2046	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		2047	synchronous (C<$sync> is true). Also remembers the grab timestamp.
		2048
		2049	=item $term->allow_events_async
		2050
		2051	Calls XAllowEvents with AsyncBoth for the most recent grab.
		2052
		2053	=item $term->allow_events_sync
		2054
		2055	Calls XAllowEvents with SyncBoth for the most recent grab.
		2056
		2057	=item $term->allow_events_replay
		2058
		2059	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		2060	recent grab.
		2061
		2062	=item $term->ungrab
		2063
		2064	Calls XUngrabPointer and XUngrabKeyboard for the most recent grab. Is called automatically on
		2065	evaluation errors, as it is better to lose the grab in the error case as
		2066	the session.
		2067
		2068	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		2069
		2070	=item $atom_name = $term->XGetAtomName ($atom)
		2071
		2072	=item @atoms = $term->XListProperties ($window)
		2073
		2074	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		2075
		2076	=item $term->XChangeProperty ($window, $property, $type, $format, $octets)
		2077
		2078	=item $term->XDeleteProperty ($window, $property)
		2079
		2080	=item $window = $term->DefaultRootWindow
		2081
		2082	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		2083
		2084	=item $term->XMapWindow ($window)
		2085
		2086	=item $term->XUnmapWindow ($window)
		2087
		2088	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		2089
		2090	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		2091
		2092	=item $term->XChangeInput ($window, $add_events[, $del_events])
		2093
		2094	=item $keysym = $term->XStringToKeysym ($string)
		2095
		2096	=item $string = $term->XKeysymToString ($keysym)
		2097
		2098	Various X or X-related functions. The C<$term> object only serves as
		2099	the source of the display, otherwise those functions map more-or-less
		2100	directly onto the X functions of the same name.
		2101
925	=back	2102	=back
		2103
		2104	=cut
		2105
		2106	package urxvt::popup;
		2107
		2108	=head2 The C<urxvt::popup> Class
		2109
		2110	=over
		2111
		2112	=cut
		2113
		2114	sub add_item {
		2115	my ($self, $item) = @_;
		2116
		2117	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		2118	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		2119	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		2120
		2121	$item->{render} ||= sub { $_[0]{text} };
		2122
		2123	push @{ $self->{item} }, $item;
		2124	}
		2125
		2126	=item $popup->add_title ($title)
		2127
		2128	Adds a non-clickable title to the popup.
		2129
		2130	=cut
		2131
		2132	sub add_title {
		2133	my ($self, $title) = @_;
		2134
		2135	$self->add_item ({
		2136	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		2137	text => $title,
		2138	activate => sub { },
		2139	});
		2140	}
		2141
		2142	=item $popup->add_separator ([$sepchr])
		2143
		2144	Creates a separator, optionally using the character given as C<$sepchr>.
		2145
		2146	=cut
		2147
		2148	sub add_separator {
		2149	my ($self, $sep) = @_;
		2150
		2151	$sep ||= "=";
		2152
		2153	$self->add_item ({
		2154	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		2155	text => "",
		2156	render => sub { $sep x $self->{term}->ncol },
		2157	activate => sub { },
		2158	});
		2159	}
		2160
		2161	=item $popup->add_button ($text, $cb)
		2162
		2163	Adds a clickable button to the popup. C<$cb> is called whenever it is
		2164	selected.
		2165
		2166	=cut
		2167
		2168	sub add_button {
		2169	my ($self, $text, $cb) = @_;
		2170
		2171	$self->add_item ({ type => "button", text => $text, activate => $cb});
		2172	}
		2173
		2174	=item $popup->add_toggle ($text, $initial_value, $cb)
		2175
		2176	Adds a toggle/checkbox item to the popup. The callback gets called
		2177	whenever it gets toggled, with a boolean indicating its new value as its
		2178	first argument.
		2179
		2180	=cut
		2181
		2182	sub add_toggle {
		2183	my ($self, $text, $value, $cb) = @_;
		2184
		2185	my $item; $item = {
		2186	type => "button",
		2187	text => " $text",
		2188	value => $value,
		2189	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		2190	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		2191	};
		2192
		2193	$self->add_item ($item);
		2194	}
		2195
		2196	=item $popup->show
		2197
		2198	Displays the popup (which is initially hidden).
		2199
		2200	=cut
		2201
		2202	sub show {
		2203	my ($self) = @_;
		2204
		2205	local $urxvt::popup::self = $self;
		2206
		2207	my $env = $self->{term}->env;
		2208	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		2209	delete $env->{LC_ALL};
		2210	$env->{LC_CTYPE} = $self->{term}->locale;
		2211
		2212	my $term = urxvt::term->new (
		2213	$env, "popup",
		2214	"--perl-lib" => "", "--perl-ext-common" => "",
		2215	"-pty-fd" => -1, "-sl" => 0,
		2216	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
		2217	"--transient-for" => $self->{term}->parent,
		2218	"-display" => $self->{term}->display_id,
		2219	"-pe" => "urxvt-popup",
		2220	) or die "unable to create popup window\n";
		2221
		2222	unless (delete $term->{urxvt_popup_init_done}) {
		2223	$term->ungrab;
		2224	$term->destroy;
		2225	die "unable to initialise popup window\n";
		2226	}
		2227	}
		2228
		2229	sub DESTROY {
		2230	my ($self) = @_;
		2231
		2232	delete $self->{term}{_destroy}{$self};
		2233	$self->{term}->ungrab;
		2234	}
		2235
		2236	=back
		2237
		2238	=cut
		2239
		2240	package urxvt::watcher;
926		2241
927	=head2 The C<urxvt::timer> Class	2242	=head2 The C<urxvt::timer> Class
928		2243
929	This class implements timer watchers/events. Time is represented as a	2244	This class implements timer watchers/events. Time is represented as a
930	fractional number of seconds since the epoch. Example:	2245	fractional number of seconds since the epoch. Example:
…		…
934	->new	2249	->new
935	->interval (1)	2250	->interval (1)
936	->cb (sub {	2251	->cb (sub {
937	$term->{overlay}->set (0, 0,	2252	$term->{overlay}->set (0, 0,
938	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);	2253	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
939	});	2254	});
940		2255
941	=over 4	2256	=over
942		2257
943	=item $timer = new urxvt::timer	2258	=item $timer = new urxvt::timer
944		2259
945	Create a new timer object in started state. It is scheduled to fire	2260	Create a new timer object in started state. It is scheduled to fire
946	immediately.	2261	immediately.
947		2262
948	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	2263	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
949		2264
950	Set the callback to be called when the timer triggers.	2265	Set the callback to be called when the timer triggers.
951		2266
952	=item $tstamp = $timer->at
953
954	Return the time this watcher will fire next.
955
956	=item $timer = $timer->set ($tstamp)	2267	=item $timer = $timer->set ($tstamp[, $interval])
957		2268
958	Set the time the event is generated to $tstamp.	2269	Set the time the event is generated to $tstamp (and optionally specifies a
		2270	new $interval).
959		2271
960	=item $timer = $timer->interval ($interval)	2272	=item $timer = $timer->interval ($interval)
961		2273
962	Normally (and when C<$interval> is C<0>), the timer will automatically	2274	By default (and when C<$interval> is C<0>), the timer will automatically
963	stop after it has fired once. If C<$interval> is non-zero, then the timer	2275	stop after it has fired once. If C<$interval> is non-zero, then the timer
964	is automatically rescheduled at the given intervals.	2276	is automatically rescheduled at the given intervals.
965		2277
966	=item $timer = $timer->start	2278	=item $timer = $timer->start
967		2279
968	Start the timer.	2280	Start the timer.
969		2281
970	=item $timer = $timer->start ($tstamp)	2282	=item $timer = $timer->start ($tstamp[, $interval])
971		2283
972	Set the event trigger time to C<$tstamp> and start the timer.	2284	Set the event trigger time to C<$tstamp> and start the timer. Optionally
		2285	also replaces the interval.
		2286
		2287	=item $timer = $timer->after ($delay[, $interval])
		2288
		2289	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
973		2290
974	=item $timer = $timer->stop	2291	=item $timer = $timer->stop
975		2292
976	Stop the timer.	2293	Stop the timer.
977		2294
…		…
983		2300
984	$term->{socket} = ...	2301	$term->{socket} = ...
985	$term->{iow} = urxvt::iow	2302	$term->{iow} = urxvt::iow
986	->new	2303	->new
987	->fd (fileno $term->{socket})	2304	->fd (fileno $term->{socket})
988	->events (1) # wait for read data	2305	->events (urxvt::EV_READ)
989	->start	2306	->start
990	->cb (sub {	2307	->cb (sub {
991	my ($iow, $revents) = @_;	2308	my ($iow, $revents) = @_;
992	# $revents must be 1 here, no need to check	2309	# $revents must be 1 here, no need to check
993	sysread $term->{socket}, my $buf, 8192	2310	sysread $term->{socket}, my $buf, 8192
994	or end-of-file;	2311	or end-of-file;
995	});	2312	});
996		2313
997		2314
998	=over 4	2315	=over
999		2316
1000	=item $iow = new urxvt::iow	2317	=item $iow = new urxvt::iow
1001		2318
1002	Create a new io watcher object in stopped state.	2319	Create a new io watcher object in stopped state.
1003		2320
…		…
1006	Set the callback to be called when io events are triggered. C<$reventmask>	2323	Set the callback to be called when io events are triggered. C<$reventmask>
1007	is a bitset as described in the C<events> method.	2324	is a bitset as described in the C<events> method.
1008		2325
1009	=item $iow = $iow->fd ($fd)	2326	=item $iow = $iow->fd ($fd)
1010		2327
1011	Set the filedescriptor (not handle) to watch.	2328	Set the file descriptor (not handle) to watch.
1012		2329
1013	=item $iow = $iow->events ($eventmask)	2330	=item $iow = $iow->events ($eventmask)
1014		2331
1015	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2332	Set the event mask to watch. The only allowed values are
1016	data, Bit #1 (value C<2>) enables watching for write data.	2333	C<urxvt::EV_READ> and C<urxvt::EV_WRITE>, which might be ORed
		2334	together, or C<urxvt::EV_NONE>.
1017		2335
1018	=item $iow = $iow->start	2336	=item $iow = $iow->start
1019		2337
1020	Start watching for requested events on the given handle.	2338	Start watching for requested events on the given handle.
1021		2339
1022	=item $iow = $iow->stop	2340	=item $iow = $iow->stop
1023		2341
1024	Stop watching for events on the given filehandle.	2342	Stop watching for events on the given file handle.
		2343
		2344	=back
		2345
		2346	=head2 The C<urxvt::iw> Class
		2347
		2348	This class implements idle watchers, that get called automatically when
		2349	the process is idle. They should return as fast as possible, after doing
		2350	some useful work.
		2351
		2352	=over
		2353
		2354	=item $iw = new urxvt::iw
		2355
		2356	Create a new idle watcher object in stopped state.
		2357
		2358	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2359
		2360	Set the callback to be called when the watcher triggers.
		2361
		2362	=item $timer = $timer->start
		2363
		2364	Start the watcher.
		2365
		2366	=item $timer = $timer->stop
		2367
		2368	Stop the watcher.
		2369
		2370	=back
		2371
		2372	=head2 The C<urxvt::pw> Class
		2373
		2374	This class implements process watchers. They create an event whenever a
		2375	process exits, after which they stop automatically.
		2376
		2377	my $pid = fork;
		2378	...
		2379	$term->{pw} = urxvt::pw
		2380	->new
		2381	->start ($pid)
		2382	->cb (sub {
		2383	my ($pw, $exit_status) = @_;
		2384	...
		2385	});
		2386
		2387	=over
		2388
		2389	=item $pw = new urxvt::pw
		2390
		2391	Create a new process watcher in stopped state.
		2392
		2393	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2394
		2395	Set the callback to be called when the timer triggers.
		2396
		2397	=item $pw = $timer->start ($pid)
		2398
		2399	Tells the watcher to start watching for process C<$pid>.
		2400
		2401	=item $pw = $pw->stop
		2402
		2403	Stop the watcher.
1025		2404
1026	=back	2405	=back
1027		2406
1028	=head1 ENVIRONMENT	2407	=head1 ENVIRONMENT
1029		2408
1030	=head2 URXVT_PERL_VERBOSITY	2409	=head2 URXVT_PERL_VERBOSITY
1031		2410
1032	This variable controls the verbosity level of the perl extension. Higher	2411	This variable controls the verbosity level of the perl extension. Higher
1033	numbers indicate more verbose output.	2412	numbers indicate more verbose output.
1034		2413
1035	=over 4	2414	=over
1036		2415
1037	=item =0 - only fatal messages	2416	=item == 0 - fatal messages only
1038		2417
		2418	=item >= 2 - general warnings (default level)
		2419
1039	=item =3 - script loading and management	2420	=item >= 3 - script loading and management
1040		2421
1041	=item =10 - all events received	2422	=item >=10 - all called hooks
		2423
		2424	=item >=11 - hook return values
1042		2425
1043	=back	2426	=back
1044		2427
1045	=head1 AUTHOR	2428	=head1 AUTHOR
1046		2429
1047	Marc Lehmann <pcg@goof.com>	2430	Marc Lehmann <schmorp@schmorp.de>
1048	http://software.schmorp.de/pkg/rxvt-unicode	2431	http://software.schmorp.de/pkg/rxvt-unicode
1049		2432
1050	=cut	2433	=cut
1051		2434
1052	1	2435	1
		2436
		2437	# vim: sw=3:

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