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Revision 1.37 by root, Fri Jan 6 03:40:19 2006 UTC vs.
Revision 1.137 by root, Sat Mar 4 20:17:52 2006 UTC

…		…
17		17
18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test	18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
19		19
20	=head1 DESCRIPTION	20	=head1 DESCRIPTION
21		21
22	Everytime a terminal object gets created, scripts specified via the	22	Everytime a terminal object gets created, extension scripts specified via
23	C<perl> resource are loaded and associated with it.	23	the C<perl> resource are loaded and associated with it.
24		24
25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and	25	Scripts are compiled in a 'use strict' and 'use utf8' environment, and
26	thus must be encoded as UTF-8.	26	thus must be encoded as UTF-8.
27		27
28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where	28	Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
29	scripts will be shared (but not enabled) for all terminals.	29	scripts will be shared (but not enabled) for all terminals.
30		30
31	=head2 Prepackaged Extensions	31	=head1 PREPACKAGED EXTENSIONS
32		32
33	This section describes the extensiosn delivered with this version. You can	33	This section describes the extensions delivered with this release. You can
34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.	34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35		35
36	You can activate them like this:	36	You can activate them like this:
37		37
38	@@RXVT_NAME@@ -pe <extensionname>	38	@@RXVT_NAME@@ -pe <extensionname>
39		39
		40	Or by adding them to the resource for extensions loaded by default:
		41
		42	URxvt.perl-ext-common: default,automove-background,selection-autotransform
		43
40	=over 4	44	=over 4
41		45
42	=item selection	46	=item selection (enabled by default)
43		47
44	Intelligent selection. This extension tries to be more intelligent when	48	(More) intelligent selection. This extension tries to be more intelligent
45	the user extends selections (double-click). Right now, it tries to select	49	when the user extends selections (double-click and further clicks). Right
46	urls and complete shell-quoted arguments, which is very convenient, too,	50	now, it tries to select words, urls and complete shell-quoted
47	if your F<ls> supports C<--quoting-style=shell>.	51	arguments, which is very convenient, too, if your F<ls> supports
		52	C<--quoting-style=shell>.
48		53
49	It also offers the following bindable event:	54	A double-click usually selects the word under the cursor, further clicks
		55	will enlarge the selection.
		56
		57	The selection works by trying to match a number of regexes and displaying
		58	them in increasing order of length. You can add your own regexes by
		59	specifying resources of the form:
		60
		61	URxvt.selection.pattern-0: perl-regex
		62	URxvt.selection.pattern-1: perl-regex
		63	...
		64
		65	The index number (0, 1...) must not have any holes, and each regex must
		66	contain at least one pair of capturing parentheses, which will be used for
		67	the match. For example, the followign adds a regex that matches everything
		68	between two vertical bars:
		69
		70	URxvt.selection.pattern-0: \\|([^|]+)\\|
		71
		72	Another example: Programs I use often output "absolute path: " at the
		73	beginning of a line when they process multiple files. The following
		74	pattern matches the filename (note, there is a single space at the very
		75	end):
		76
		77	URxvt.selection.pattern-0: ^(/[^:]+):\
		78
		79	You can look at the source of the selection extension to see more
		80	interesting uses, such as parsing a line from beginning to end.
		81
		82	This extension also offers following bindable keyboard commands:
50		83
51	=over 4	84	=over 4
52		85
53	=item rot13	86	=item rot13
54		87
…		…
56		89
57	URxvt.keysym.C-M-r: perl:selection:rot13	90	URxvt.keysym.C-M-r: perl:selection:rot13
58		91
59	=back	92	=back
60		93
		94	=item option-popup (enabled by default)
		95
		96	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
		97	runtime.
		98
		99	Other extensions can extend this popup menu by pushing a code reference
		100	onto C<@{ $term->{option_popup_hook} }>, which gets called whenever the
		101	popup is being displayed.
		102
		103	It's sole argument is the popup menu, which can be modified. It should
		104	either return nothing or a string, the initial boolean value and a code
		105	reference. The string will be used as button text and the code reference
		106	will be called when the toggle changes, with the new boolean value as
		107	first argument.
		108
		109	The following will add an entry C<myoption> that changes
		110	C<$self->{myoption}>:
		111
		112	push @{ $self->{term}{option_popup_hook} }, sub {
		113	("my option" => $myoption, sub { $self->{myoption} = $_[0] })
		114	};
		115
		116	=item selection-popup (enabled by default)
		117
		118	Binds a popup menu to Ctrl-Button3 that lets you convert the selection
		119	text into various other formats/action (such as uri unescaping, perl
		120	evaluation, web-browser starting etc.), depending on content.
		121
		122	Other extensions can extend this popup menu by pushing a code reference
		123	onto C<@{ $term->{selection_popup_hook} }>, which gets called whenever the
		124	popup is being displayed.
		125
		126	It's sole argument is the popup menu, which can be modified. The selection
		127	is in C<$_>, which can be used to decide wether to add something or not.
		128	It should either return nothing or a string and a code reference. The
		129	string will be used as button text and the code reference will be called
		130	when the button gets activated and should transform C<$_>.
		131
		132	The following will add an entry C<a to b> that transforms all C<a>s in
		133	the selection to C<b>s, but only if the selection currently contains any
		134	C<a>s:
		135
		136	push @{ $self->{term}{selection_popup_hook} }, sub {
		137	/a/ ? ("a to be" => sub { s/a/b/g }
		138	: ()
		139	};
		140
		141	=item searchable-scrollback<hotkey> (enabled by default)
		142
		143	Adds regex search functionality to the scrollback buffer, triggered
		144	by a hotkey (default: C<M-s>). While in search mode, normal terminal
		145	input/output is suspended and a regex is displayed at the bottom of the
		146	screen.
		147
		148	Inputting characters appends them to the regex and continues incremental
		149	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
		150	search upwards/downwards in the scrollback buffer, C<End> jumps to the
		151	bottom. C<Escape> leaves search mode and returns to the point where search
		152	was started, while C<Enter> or C<Return> stay at the current position and
		153	additionally stores the first match in the current line into the primary
		154	selection.
		155
		156	=item readline (enabled by default)
		157
		158	A support package that tries to make editing with readline easier. At
		159	the moment, it reacts to clicking shift-left mouse button by trying to
		160	move the text cursor to this position. It does so by generating as many
		161	cursor-left or cursor-right keypresses as required (the this only works
		162	for programs that correctly support wide characters).
		163
		164	To avoid too many false positives, this is only done when:
		165
		166	=over 4
		167
		168	=item - the tty is in ICANON state.
		169
		170	=item - the text cursor is visible.
		171
		172	=item - the primary screen is currently being displayed.
		173
		174	=item - the mouse is on the same (multi-row-) line as the text cursor.
		175
		176	=back
		177
		178	The normal selection mechanism isn't disabled, so quick successive clicks
		179	might interfere with selection creation in harmless ways.
		180
		181	=item selection-autotransform
		182
		183	This selection allows you to do automatic transforms on a selection
		184	whenever a selection is made.
		185
		186	It works by specifying perl snippets (most useful is a single C<s///>
		187	operator) that modify C<$_> as resources:
		188
		189	URxvt.selection-autotransform.0: transform
		190	URxvt.selection-autotransform.1: transform
		191	...
		192
		193	For example, the following will transform selections of the form
		194	C<filename:number>, often seen in compiler messages, into C<vi +$filename
		195	$word>:
		196
		197	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
		198
		199	And this example matches the same,but replaces it with vi-commands you can
		200	paste directly into your (vi :) editor:
		201
		202	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
		203
		204	Of course, this can be modified to suit your needs and your editor :)
		205
		206	To expand the example above to typical perl error messages ("XXX at
		207	FILENAME line YYY."), you need a slightly more elaborate solution:
		208
		209	URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
		210	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
		211
		212	The first line tells the selection code to treat the unchanging part of
		213	every error message as a selection pattern, and the second line transforms
		214	the message into vi commands to load the file.
		215
		216	=item tabbed
		217
		218	This transforms the terminal into a tabbar with additional terminals, that
		219	is, it implements what is commonly refered to as "tabbed terminal". The topmost line
		220	displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
		221	button per tab.
		222
		223	Clicking a button will activate that tab. Pressing B<Shift-Left> and
		224	B<Shift-Right> will switch to the tab left or right of the current one,
		225	while B<Shift-Down> creates a new tab.
		226
		227	The tabbar itself can be configured similarly to a normal terminal, but
		228	with a resource class of C<URxvt.tabbed>. In addition, it supports the
		229	following four resources (shown with defaults):
		230
		231	URxvt.tabbed.tabbar-fg: <colour-index, default 3>
		232	URxvt.tabbed.tabbar-bg: <colour-index, default 0>
		233	URxvt.tabbed.tab-fg: <colour-index, default 0>
		234	URxvt.tabbed.tab-bg: <colour-index, default 1>
		235
		236	See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
		237	indices.
		238
		239	=item mark-urls
		240
		241	Uses per-line display filtering (C<on_line_update>) to underline urls and
		242	make them clickable. When middle-clicked, the program specified in the
		243	resource C<urlLauncher> (default C<x-www-browser>) will be started with
		244	the URL as first argument.
		245
		246	=item xim-onthespot
		247
		248	This (experimental) perl extension implements OnTheSpot editing. It does
		249	not work perfectly, and some input methods don't seem to work well with
		250	OnTheSpot editing in general, but it seems to work at leats for SCIM and
		251	kinput2.
		252
		253	You enable it by specifying this extension and a preedit style of
		254	C<OnTheSpot>, i.e.:
		255
		256	@@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
		257
		258	=item automove-background
		259
		260	This is basically a one-line extension that dynamically changes the background pixmap offset
		261	to the window position, in effect creating the same effect as pseudo transparency with
		262	a custom pixmap. No scaling is supported in this mode. Exmaple:
		263
		264	@@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
		265
		266	=item block-graphics-to-ascii
		267
		268	A not very useful example of filtering all text output to the terminal,
		269	by replacing all line-drawing characters (U+2500 .. U+259F) by a
		270	similar-looking ascii character.
		271
61	=item digital-clock	272	=item digital-clock
62		273
63	Displays a digital clock using the built-in overlay.	274	Displays a digital clock using the built-in overlay.
64		275
65	=item mark-urls	276	=item remote-clipboard
66		277
67	Uses per-line filtering (C<on_line_update>) to underline urls.	278	Somewhat of a misnomer, this extension adds two menu entries to the
		279	selection popup that allows one ti run external commands to store the
		280	selection somewhere and fetch it again.
		281
		282	We use it to implement a "distributed selection mechanism", which just
		283	means that one command uploads the file to a remote server, and another
		284	reads it.
		285
		286	The commands can be set using the C<URxvt.remote-selection.store> and
		287	C<URxvt.remote-selection.fetch> resources. The first should read the
		288	selection to store from STDIN (always in UTF-8), the second should provide
		289	the selection data on STDOUT (also in UTF-8).
		290
		291	The defaults (which are likely useless to you) use rsh and cat:
		292
		293	URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
		294	URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
		295
		296	=item selection-pastebin
		297
		298	This is a little rarely useful extension that Uploads the selection as
		299	textfile to a remote site (or does other things). (The implementation is
		300	not currently secure for use in a multiuser environment as it writes to
		301	F</tmp> directly.).
		302
		303	It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
		304	i.e.
		305
		306	URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
		307
		308	Pressing this combination runs a command with C<%> replaced by the name of
		309	the textfile. This command can be set via a resource:
		310
		311	URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
		312
		313	And the default is likely not useful to anybody but the few people around
		314	here :)
		315
		316	The name of the textfile is the hex encoded md5 sum of the selection, so
		317	the same content should lead to the same filename.
		318
		319	After a successful upload the selection will be replaced by the text given
		320	in the C<selection-pastebin-url> resource (again, the % is the placeholder
		321	for the filename):
		322
		323	URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
68		324
69	=item example-refresh-hooks	325	=item example-refresh-hooks
70		326
71	Displays a very simple digital clock in the upper right corner of the	327	Displays a very simple digital clock in the upper right corner of the
72	window. Illustrates overwriting the refresh callbacks to create your own	328	window. Illustrates overwriting the refresh callbacks to create your own
73	overlays or changes.	329	overlays or changes.
74		330
75	=item example-filter-input
76
77	A not very useful example of filtering all text output to the terminal, by
78	underlining all urls that matches a certain regex (i.e. some urls :). It
79	is not very useful because urls that are output in multiple steps (e.g.
80	when typing them) do not get marked.
81
82	=back	331	=back
		332
		333	=head1 API DOCUMENTATION
83		334
84	=head2 General API Considerations	335	=head2 General API Considerations
85		336
86	All objects (such as terminals, time watchers etc.) are typical	337	All objects (such as terminals, time watchers etc.) are typical
87	reference-to-hash objects. The hash can be used to store anything you	338	reference-to-hash objects. The hash can be used to store anything you
…		…
100	=over 4	351	=over 4
101		352
102	=item $text	353	=item $text
103		354
104	Rxvt-unicodes special way of encoding text, where one "unicode" character	355	Rxvt-unicodes special way of encoding text, where one "unicode" character
105	always represents one screen cell. See L<row_t> for a discussion of this format.	356	always represents one screen cell. See L<ROW_t> for a discussion of this format.
106		357
107	=item $string	358	=item $string
108		359
109	A perl text string, with an emphasis on I<text>. It can store all unicode	360	A perl text string, with an emphasis on I<text>. It can store all unicode
110	characters and is to be distinguished with text encoded in a specific	361	characters and is to be distinguished with text encoded in a specific
…		…
115	Either binary data or - more common - a text string encoded in a	366	Either binary data or - more common - a text string encoded in a
116	locale-specific way.	367	locale-specific way.
117		368
118	=back	369	=back
119		370
		371	=head2 Extension Objects
		372
		373	Very perl extension is a perl class. A separate perl object is created
		374	for each terminal and each extension and passed as the first parameter to
		375	hooks. So extensions can use their C<$self> object without having to think
		376	about other extensions, with the exception of methods and members that
		377	begin with an underscore character C<_>: these are reserved for internal
		378	use.
		379
		380	Although it isn't a C<urxvt::term> object, you can call all methods of the
		381	C<urxvt::term> class on this object.
		382
		383	It has the following methods and data members:
		384
		385	=over 4
		386
		387	=item $urxvt_term = $self->{term}
		388
		389	Returns the C<urxvt::term> object associated with this instance of the
		390	extension. This member I<must not> be changed in any way.
		391
		392	=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
		393
		394	Dynamically enable the given hooks (named without the C<on_> prefix) for
		395	this extension, replacing any previous hook. This is useful when you want
		396	to overwrite time-critical hooks only temporarily.
		397
		398	=item $self->disable ($hook_name[, $hook_name..])
		399
		400	Dynamically disable the given hooks.
		401
		402	=back
		403
120	=head2 Hooks	404	=head2 Hooks
121		405
122	The following subroutines can be declared in loaded scripts, and will be	406	The following subroutines can be declared in extension files, and will be
123	called whenever the relevant event happens.	407	called whenever the relevant event happens.
124		408
125	The first argument passed to them is an object private to each terminal	409	The first argument passed to them is an extension oject as described in
126	and extension package. You can call all C<urxvt::term> methods on it, but	410	the in the C<Extension Objects> section.
127	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
128	object that is shared between all packages is stored in the C<term>
129	member.
130		411
131	All of them must return a boolean value. If it is true, then the event	412	B<All> of these hooks must return a boolean value. If any of the called
132	counts as being I<consumed>, and the invocation of other hooks is skipped,	413	hooks returns true, then the event counts as being I<consumed>, and the
133	and the relevant action might not be carried out by the C++ code.	414	relevant action might not be carried out by the C++ code.
134		415
135	When in doubt, return a false value (preferably C<()>).	416	I<< When in doubt, return a false value (preferably C<()>). >>
136		417
137	=over 4	418	=over 4
138		419
139	=item on_init $term	420	=item on_init $term
140		421
141	Called after a new terminal object has been initialized, but before	422	Called after a new terminal object has been initialized, but before
142	windows are created or the command gets run. Most methods are unsafe to	423	windows are created or the command gets run. Most methods are unsafe to
143	call or deliver senseless data, as terminal size and other characteristics	424	call or deliver senseless data, as terminal size and other characteristics
144	have not yet been determined. You can safely query and change resources,	425	have not yet been determined. You can safely query and change resources
145	though.	426	and options, though. For many purposes the C<on_start> hook is a better
		427	place.
		428
		429	=item on_start $term
		430
		431	Called at the very end of initialisation of a new terminal, just before
		432	trying to map (display) the toplevel and returning to the mainloop.
		433
		434	=item on_destroy $term
		435
		436	Called whenever something tries to destroy terminal, when the terminal is
		437	still fully functional (not for long, though).
146		438
147	=item on_reset $term	439	=item on_reset $term
148		440
149	Called after the screen is "reset" for any reason, such as resizing or	441	Called after the screen is "reset" for any reason, such as resizing or
150	control sequences. Here is where you can react on changes to size-related	442	control sequences. Here is where you can react on changes to size-related
151	variables.	443	variables.
152		444
153	=item on_start $term	445	=item on_child_start $term, $pid
154		446
155	Called at the very end of initialisation of a new terminal, just before	447	Called just after the child process has been C<fork>ed.
156	returning to the mainloop.	448
		449	=item on_child_exit $term, $status
		450
		451	Called just after the child process has exited. C<$status> is the status
		452	from C<waitpid>.
157		453
158	=item on_sel_make $term, $eventtime	454	=item on_sel_make $term, $eventtime
159		455
160	Called whenever a selection has been made by the user, but before the	456	Called whenever a selection has been made by the user, but before the
161	selection text is copied, so changes to the beginning, end or type of the	457	selection text is copied, so changes to the beginning, end or type of the
…		…
175	=item on_sel_extend $term	471	=item on_sel_extend $term
176		472
177	Called whenever the user tries to extend the selection (e.g. with a double	473	Called whenever the user tries to extend the selection (e.g. with a double
178	click) and is either supposed to return false (normal operation), or	474	click) and is either supposed to return false (normal operation), or
179	should extend the selection itelf and return true to suppress the built-in	475	should extend the selection itelf and return true to suppress the built-in
180	processing.	476	processing. This can happen multiple times, as long as the callback
		477	returns true, it will be called on every further click by the user and is
		478	supposed to enlarge the selection more and more, if possible.
181		479
182	See the F<selection> example extension.	480	See the F<selection> example extension.
183
184	=item on_focus_in $term
185
186	Called whenever the window gets the keyboard focus, before urxvt does
187	focus in processing.
188
189	=item on_focus_out $term
190
191	Called wheneever the window loses keyboard focus, before urxvt does focus
192	out processing.
193		481
194	=item on_view_change $term, $offset	482	=item on_view_change $term, $offset
195		483
196	Called whenever the view offset changes, i..e the user or program	484	Called whenever the view offset changes, i..e the user or program
197	scrolls. Offset C<0> means display the normal terminal, positive values	485	scrolls. Offset C<0> means display the normal terminal, positive values
…		…
205		493
206	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	494	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
207	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	495	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
208	number of lines that will be in the scrollback buffer.	496	number of lines that will be in the scrollback buffer.
209		497
210	=item on_tty_activity $term *NYI*	498	=item on_osc_seq $term, $op, $args
211		499
212	Called whenever the program(s) running in the urxvt window send output.	500	Called on every OSC sequence and can be used to suppress it or modify its
		501	behaviour. The default should be to return an empty list. A true value
		502	suppresses execution of the request completely. Make sure you don't get
		503	confused by recursive invocations when you output an osc sequence within
		504	this callback.
213		505
		506	C<on_osc_seq_perl> should be used for new behaviour.
		507
214	=item on_osc_seq $term, $string	508	=item on_osc_seq_perl $term, $string
215		509
216	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	510	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
217	operating system command) is processed. Cursor position and other state	511	operating system command) is processed. Cursor position and other state
218	information is up-to-date when this happens. For interoperability, the	512	information is up-to-date when this happens. For interoperability, the
219	string should start with the extension name and a colon, to distinguish	513	string should start with the extension name and a colon, to distinguish
…		…
230	can filter/change and output the text yourself by returning a true value	524	can filter/change and output the text yourself by returning a true value
231	and calling C<< $term->scr_add_lines >> yourself. Please note that this	525	and calling C<< $term->scr_add_lines >> yourself. Please note that this
232	might be very slow, however, as your hook is called for B<all> text being	526	might be very slow, however, as your hook is called for B<all> text being
233	output.	527	output.
234		528
		529	=item on_tt_write $term, $octets
		530
		531	Called whenever some data is written to the tty/pty and can be used to
		532	suppress or filter tty input.
		533
235	=item on_line_update $term, $row	534	=item on_line_update $term, $row
236		535
237	Called whenever a line was updated or changed. Can be used to filter	536	Called whenever a line was updated or changed. Can be used to filter
238	screen output (e.g. underline urls or other useless stuff). Only lines	537	screen output (e.g. underline urls or other useless stuff). Only lines
239	that are being shown will be filtered, and, due to performance reasons,	538	that are being shown will be filtered, and, due to performance reasons,
…		…
255		554
256	=item on_refresh_end $term	555	=item on_refresh_end $term
257		556
258	Called just after the screen gets redrawn. See C<on_refresh_begin>.	557	Called just after the screen gets redrawn. See C<on_refresh_begin>.
259		558
260	=item on_keyboard_command $term, $string	559	=item on_user_command $term, $string
261		560
262	Called whenever the user presses a key combination that has a	561	Called whenever the a user-configured event is being activated (e.g. via
263	C<perl:string> action bound to it (see description of the B<keysym>	562	a C<perl:string> action bound to a key, see description of the B<keysym>
264	resource in the @@RXVT_NAME@@(1) manpage).	563	resource in the @@RXVT_NAME@@(1) manpage).
265		564
		565	The event is simply the action string. This interface is assumed to change
		566	slightly in the future.
		567
		568	=item on_resize_all_windows $tern, $new_width, $new_height
		569
		570	Called just after the new window size has been calculcated, but before
		571	windows are actually being resized or hints are being set. If this hook
		572	returns TRUE, setting of the window hints is being skipped.
		573
266	=item on_key_press $term, $event	574	=item on_x_event $term, $event
267		575
		576	Called on every X event received on the vt window (and possibly other
		577	windows). Should only be used as a last resort. Most event structure
		578	members are not passed.
		579
		580	=item on_focus_in $term
		581
		582	Called whenever the window gets the keyboard focus, before rxvt-unicode
		583	does focus in processing.
		584
		585	=item on_focus_out $term
		586
		587	Called wheneever the window loses keyboard focus, before rxvt-unicode does
		588	focus out processing.
		589
		590	=item on_configure_notify $term, $event
		591
		592	=item on_property_notify $term, $event
		593
		594	=item on_key_press $term, $event, $keysym, $octets
		595
268	=item on_key_release $term, $event	596	=item on_key_release $term, $event, $keysym
269		597
270	=item on_button_press $term, $event	598	=item on_button_press $term, $event
271		599
272	=item on_button_release $term, $event	600	=item on_button_release $term, $event
273		601
274	=item on_motion_notify $term, $event	602	=item on_motion_notify $term, $event
275		603
		604	=item on_map_notify $term, $event
		605
		606	=item on_unmap_notify $term, $event
		607
276	Called whenever the corresponding X event is received for the terminal. If	608	Called whenever the corresponding X event is received for the terminal If
277	the hook returns true, then the even will be ignored by rxvt-unicode.	609	the hook returns true, then the even will be ignored by rxvt-unicode.
278		610
		611	The event is a hash with most values as named by Xlib (see the XEvent
		612	manpage), with the additional members C<row> and C<col>, which are the
		613	(real, not screen-based) row and column under the mouse cursor.
		614
		615	C<on_key_press> additionally receives the string rxvt-unicode would
		616	output, if any, in locale-specific encoding.
		617
279	subwindow.	618	subwindow.
280		619
		620	=item on_client_message $term, $event
		621
		622	=item on_wm_protocols $term, $event
		623
		624	=item on_wm_delete_window $term, $event
		625
		626	Called when various types of ClientMessage events are received (all with
		627	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		628
281	=back	629	=back
282		630
		631	=cut
		632
		633	package urxvt;
		634
		635	use utf8;
		636	use strict;
		637	use Carp ();
		638	use Scalar::Util ();
		639	use List::Util ();
		640
		641	our $VERSION = 1;
		642	our $TERM;
		643	our @TERM_INIT;
		644	our @TERM_EXT;
		645	our @HOOKNAME;
		646	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		647	our %OPTION;
		648
		649	our $LIBDIR;
		650	our $RESNAME;
		651	our $RESCLASS;
		652	our $RXVTNAME;
		653
		654	our $NOCHAR = chr 0xffff;
		655
283	=head2 Variables in the C<urxvt> Package	656	=head2 Variables in the C<urxvt> Package
284		657
285	=over 4	658	=over 4
286		659
		660	=item $urxvt::LIBDIR
		661
		662	The rxvt-unicode library directory, where, among other things, the perl
		663	modules and scripts are stored.
		664
		665	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		666
		667	The resource class and name rxvt-unicode uses to look up X resources.
		668
		669	=item $urxvt::RXVTNAME
		670
		671	The basename of the installed binaries, usually C<urxvt>.
		672
287	=item $urxvt::TERM	673	=item $urxvt::TERM
288		674
289	The current terminal. Whenever a callback/Hook is bein executed, this	675	The current terminal. This variable stores the current C<urxvt::term>
290	variable stores the current C<urxvt::term> object.	676	object, whenever a callback/hook is executing.
		677
		678	=item @urxvt::TERM_INIT
		679
		680	All coderefs in this array will be called as methods of the next newly
		681	created C<urxvt::term> object (during the C<on_init> phase). The array
		682	gets cleared before the codereferences that were in it are being executed,
		683	so coderefs can push themselves onto it again if they so desire.
		684
		685	This complements to the perl-eval commandline option, but gets executed
		686	first.
		687
		688	=item @urxvt::TERM_EXT
		689
		690	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		691	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		692	but before other extensions. Gets cleared just like C<@TERM_INIT>.
291		693
292	=back	694	=back
293		695
294	=head2 Functions in the C<urxvt> Package	696	=head2 Functions in the C<urxvt> Package
295		697
296	=over 4	698	=over 4
297
298	=item $term = new urxvt [arg...]
299
300	Creates a new terminal, very similar as if you had started it with
301	C<system $binfile, arg...>. Croaks (and probably outputs an error message)
302	if the new instance couldn't be created. Returns C<undef> if the new
303	instance didn't initialise perl, and the terminal object otherwise. The
304	C<init> and C<start> hooks will be called during the call.
305		699
306	=item urxvt::fatal $errormessage	700	=item urxvt::fatal $errormessage
307		701
308	Fatally aborts execution with the given error message. Avoid at all	702	Fatally aborts execution with the given error message. Avoid at all
309	costs! The only time this is acceptable is when the terminal process	703	costs! The only time this is acceptable is when the terminal process
…		…
316	that calls this function.	710	that calls this function.
317		711
318	Using this function has the advantage that its output ends up in the	712	Using this function has the advantage that its output ends up in the
319	correct place, e.g. on stderr of the connecting urxvtc client.	713	correct place, e.g. on stderr of the connecting urxvtc client.
320		714
		715	Messages have a size limit of 1023 bytes currently.
		716
		717	=item @terms = urxvt::termlist
		718
		719	Returns all urxvt::term objects that exist in this process, regardless of
		720	wether they are started, being destroyed etc., so be careful. Only term
		721	objects that have perl extensions attached will be returned (because there
		722	is no urxvt::term objet associated with others).
		723
321	=item $time = urxvt::NOW	724	=item $time = urxvt::NOW
322		725
323	Returns the "current time" (as per the event loop).	726	Returns the "current time" (as per the event loop).
		727
		728	=item urxvt::CurrentTime
		729
		730	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		731	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		732	Button4Mask, Button5Mask, AnyModifier
		733
		734	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		735	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		736	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		737	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		738	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		739	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		740	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		741
		742	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		743	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		744	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		745	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		746	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		747	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		748	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		749
		750	Various constants for use in X calls and event processing.
324		751
325	=back	752	=back
326		753
327	=head2 RENDITION	754	=head2 RENDITION
328		755
…		…
355		782
356	=item $background = urxvt::GET_BASEBG $rend	783	=item $background = urxvt::GET_BASEBG $rend
357		784
358	Return the foreground/background colour index, respectively.	785	Return the foreground/background colour index, respectively.
359		786
360	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	787	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
361		788
362	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	789	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
		790
		791	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
363		792
364	Replace the foreground/background colour in the rendition mask with the	793	Replace the foreground/background colour in the rendition mask with the
365	specified one.	794	specified one.
366		795
367	=item $value = urxvt::GET_CUSTOM ($rend)	796	=item $value = urxvt::GET_CUSTOM $rend
368		797
369	Return the "custom" value: Every rendition has 5 bits for use by	798	Return the "custom" value: Every rendition has 5 bits for use by
370	extensions. They can be set and changed as you like and are initially	799	extensions. They can be set and changed as you like and are initially
371	zero.	800	zero.
372		801
373	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	802	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
374		803
375	Change the custom value.	804	Change the custom value.
376		805
377	=back	806	=back
378		807
379	=cut	808	=cut
380		809
381	package urxvt;
382
383	use strict;
384	use Scalar::Util ();
385
386	our $TERM;
387	our @HOOKNAME;
388	our $LIBDIR;
389
390	BEGIN {	810	BEGIN {
391	urxvt->bootstrap;
392
393	# overwrite perl's warn	811	# overwrite perl's warn
394	*CORE::GLOBAL::warn = sub {	812	*CORE::GLOBAL::warn = sub {
395	my $msg = join "", @_;	813	my $msg = join "", @_;
396	$msg .= "\n"	814	$msg .= "\n"
397	unless $msg =~ /\n$/;	815	unless $msg =~ /\n$/;
398	urxvt::warn ($msg);	816	urxvt::warn ($msg);
399	};	817	};
400	}	818	}
401		819
402	my @hook_count;	820	no warnings 'utf8';
		821
403	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	822	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
404		823
405	sub verbose {	824	sub verbose {
406	my ($level, $msg) = @_;	825	my ($level, $msg) = @_;
407	warn "$msg\n" if $level <= $verbosity;	826	warn "$msg\n" if $level <= $verbosity;
408	}	827	}
409		828
410	# find on_xxx subs in the package and register them	829	my %extension_pkg;
411	# as hooks
412	sub register_package($) {
413	my ($pkg) = @_;
414
415	for my $htype (0.. $#HOOKNAME) {
416	my $name = $HOOKNAME[$htype];
417
418	my $ref = $pkg->can ("on_" . lc $name)
419	or next;
420
421	$TERM->{_hook}[$htype]{$pkg} = $ref;
422	$hook_count[$htype]++
423	or set_should_invoke $htype, 1;
424	}
425	}
426
427	my $script_pkg = "script0000";
428	my %script_pkg;
429		830
430	# load a single script into its own package, once only	831	# load a single script into its own package, once only
431	sub script_package($) {	832	sub extension_package($) {
432	my ($path) = @_;	833	my ($path) = @_;
433		834
434	$script_pkg{$path} ||= do {	835	$extension_pkg{$path} ||= do {
435	my $pkg = "urxvt::" . ($script_pkg++);	836	$path =~ /([^\/\\]+)$/;
		837	my $pkg = $1;
		838	$pkg =~ s/[^[:word:]]/_/g;
		839	$pkg = "urxvt::ext::$pkg";
436		840
437	verbose 3, "loading script '$path' into package '$pkg'";	841	verbose 3, "loading extension '$path' into package '$pkg'";
438		842
439	open my $fh, "<:raw", $path	843	open my $fh, "<:raw", $path
440	or die "$path: $!";	844	or die "$path: $!";
441		845
442	my $source = "package $pkg; use strict; use utf8;\n"	846	my $source =
		847	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
443	. "#line 1 \"$path\"\n{\n"	848	. "#line 1 \"$path\"\n{\n"
444	. (do { local $/; <$fh> })	849	. (do { local $/; <$fh> })
445	. "\n};\n1";	850	. "\n};\n1";
446		851
		852	eval $source
447	eval $source or die "$path: $@";	853	or die "$path: $@";
448		854
449	$pkg	855	$pkg
450	}	856	}
451	}	857	}
452		858
…		…
457	local $TERM = shift;	863	local $TERM = shift;
458	my $htype = shift;	864	my $htype = shift;
459		865
460	if ($htype == 0) { # INIT	866	if ($htype == 0) { # INIT
461	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	867	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
		868
		869	my %ext_arg;
462		870
		871	{
		872	my @init = @TERM_INIT;
		873	@TERM_INIT = ();
		874	$_->($TERM) for @init;
		875	my @pkg = @TERM_EXT;
		876	@TERM_EXT = ();
		877	$TERM->register_package ($_) for @pkg;
		878	}
		879
463	for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) {	880	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
		881	if ($_ eq "default") {
		882	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
		883	} elsif (/^-(.*)$/) {
		884	delete $ext_arg{$1};
		885	} elsif (/^([^<]+)<(.*)>$/) {
		886	push @{ $ext_arg{$1} }, $2;
		887	} else {
		888	$ext_arg{$_} ||= [];
		889	}
		890	}
		891
		892	for my $ext (sort keys %ext_arg) {
464	my @files = grep -f $_, map "$_/$ext", @dirs;	893	my @files = grep -f $_, map "$_/$ext", @dirs;
465		894
466	if (@files) {	895	if (@files) {
467	register_package script_package $files[0];	896	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
468	} else {	897	} else {
469	warn "perl extension '$ext' not found in perl library search path\n";	898	warn "perl extension '$ext' not found in perl library search path\n";
470	}	899	}
471	}	900	}
		901
		902	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		903	warn $@ if $@;
472	}	904	}
473		905
474	$retval = undef;	906	$retval = undef;
475		907
476	if (my $cb = $TERM->{_hook}[$htype]) {	908	if (my $cb = $TERM->{_hook}[$htype]) {
…		…
478	if $verbosity >= 10;	910	if $verbosity >= 10;
479		911
480	keys %$cb;	912	keys %$cb;
481		913
482	while (my ($pkg, $cb) = each %$cb) {	914	while (my ($pkg, $cb) = each %$cb) {
483	$retval = $cb->(	915	my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
484	$TERM->{_pkg}{$pkg} ||= do {	916	$retval ||= $retval_;
485	my $proxy = bless { }, urxvt::term::proxy::;
486	Scalar::Util::weaken ($proxy->{term} = $TERM);
487	$proxy
488	},
489	@_,
490	) and last;
491	}
492	}
493		917
494	if ($htype == 1) { # DESTROY	918	if ($@) {
495	# remove hooks if unused	919	$TERM->ungrab; # better to lose the grab than the session
496	if (my $hook = $TERM->{_hook}) {	920	warn $@;
497	for my $htype (0..$#$hook) {
498	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
499	or set_should_invoke $htype, 0;
500	}	921	}
501	}	922	}
502		923
		924	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		925	if $verbosity >= 11;
		926	}
		927
		928	if ($htype == 1) { # DESTROY
503	# clear package objects	929	# clear package objects
504	%$_ = () for values %{ $TERM->{_pkg} };	930	%$_ = () for values %{ $TERM->{_pkg} };
505		931
506	# clear package	932	# clear package
507	%$TERM = ();	933	%$TERM = ();
508	}	934	}
509		935
510	$retval	936	$retval
511	}	937	}
512		938
513	sub urxvt::term::proxy::AUTOLOAD {	939	sub SET_COLOR($$$) {
514	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	940	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		941	}
		942
		943	# urxvt::term::extension
		944
		945	package urxvt::term::extension;
		946
		947	sub enable {
		948	my ($self, %hook) = @_;
		949	my $pkg = $self->{_pkg};
		950
		951	while (my ($name, $cb) = each %hook) {
		952	my $htype = $HOOKTYPE{uc $name};
		953	defined $htype
		954	or Carp::croak "unsupported hook type '$name'";
		955
		956	$self->set_should_invoke ($htype, +1)
		957	unless exists $self->{term}{_hook}[$htype]{$pkg};
		958
		959	$self->{term}{_hook}[$htype]{$pkg} = $cb;
		960	}
		961	}
		962
		963	sub disable {
		964	my ($self, @hook) = @_;
		965	my $pkg = $self->{_pkg};
		966
		967	for my $name (@hook) {
		968	my $htype = $HOOKTYPE{uc $name};
		969	defined $htype
		970	or Carp::croak "unsupported hook type '$name'";
		971
		972	$self->set_should_invoke ($htype, -1)
		973	if delete $self->{term}{_hook}[$htype]{$pkg};
		974	}
		975	}
		976
		977	our $AUTOLOAD;
		978
		979	sub AUTOLOAD {
		980	$AUTOLOAD =~ /:([^:]+)$/
515	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	981	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
516		982
517	eval qq{	983	eval qq{
518	sub $urxvt::term::proxy::AUTOLOAD {	984	sub $AUTOLOAD {
519	my \$proxy = shift;	985	my \$proxy = shift;
520	\$proxy->{term}->$1 (\@_)	986	\$proxy->{term}->$1 (\@_)
521	}	987	}
522	1	988	1
523	} or die "FATAL: unable to compile method forwarder: $@";	989	} or die "FATAL: unable to compile method forwarder: $@";
524		990
525	goto &$urxvt::term::proxy::AUTOLOAD;	991	goto &$AUTOLOAD;
526	}	992	}
		993
		994	sub DESTROY {
		995	# nop
		996	}
		997
		998	# urxvt::destroy_hook
		999
		1000	sub urxvt::destroy_hook::DESTROY {
		1001	${$_[0]}->();
		1002	}
		1003
		1004	sub urxvt::destroy_hook(&) {
		1005	bless \shift, urxvt::destroy_hook::
		1006	}
		1007
		1008	package urxvt::anyevent;
		1009
		1010	=head2 The C<urxvt::anyevent> Class
		1011
		1012	The sole purpose of this class is to deliver an interface to the
		1013	C<AnyEvent> module - any module using it will work inside urxvt without
		1014	further programming. The only exception is that you cannot wait on
		1015	condition variables, but non-blocking condvar use is ok. What this means
		1016	is that you cannot use blocking APIs, but the non-blocking variant should
		1017	work.
		1018
		1019	=cut
		1020
		1021	our $VERSION = 1;
		1022
		1023	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		1024	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		1025
		1026	sub timer {
		1027	my ($class, %arg) = @_;
		1028
		1029	my $cb = $arg{cb};
		1030
		1031	urxvt::timer
		1032	->new
		1033	->start (urxvt::NOW + $arg{after})
		1034	->cb (sub {
		1035	$_[0]->stop; # need to cancel manually
		1036	$cb->();
		1037	})
		1038	}
		1039
		1040	sub io {
		1041	my ($class, %arg) = @_;
		1042
		1043	my $cb = $arg{cb};
		1044
		1045	bless [$arg{fh}, urxvt::iow
		1046	->new
		1047	->fd (fileno $arg{fh})
		1048	->events (($arg{poll} =~ /r/ ? 1 : 0)
		1049	| ($arg{poll} =~ /w/ ? 2 : 0))
		1050	->start
		1051	->cb (sub {
		1052	$cb->(($_[1] & 1 ? 'r' : '')
		1053	. ($_[1] & 2 ? 'w' : ''));
		1054	})],
		1055	urxvt::anyevent::
		1056	}
		1057
		1058	sub DESTROY {
		1059	$_[0][1]->stop;
		1060	}
		1061
		1062	sub condvar {
		1063	bless \my $flag, urxvt::anyevent::condvar::
		1064	}
		1065
		1066	sub urxvt::anyevent::condvar::broadcast {
		1067	${$_[0]}++;
		1068	}
		1069
		1070	sub urxvt::anyevent::condvar::wait {
		1071	unless (${$_[0]}) {
		1072	Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
		1073	}
		1074	}
		1075
		1076	package urxvt::term;
527		1077
528	=head2 The C<urxvt::term> Class	1078	=head2 The C<urxvt::term> Class
529		1079
530	=over 4	1080	=over 4
531		1081
		1082	=cut
		1083
		1084	# find on_xxx subs in the package and register them
		1085	# as hooks
		1086	sub register_package {
		1087	my ($self, $pkg, $argv) = @_;
		1088
		1089	no strict 'refs';
		1090
		1091	urxvt::verbose 6, "register package $pkg to $self";
		1092
		1093	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1094
		1095	my $proxy = bless {
		1096	_pkg => $pkg,
		1097	argv => $argv,
		1098	}, $pkg;
		1099	Scalar::Util::weaken ($proxy->{term} = $self);
		1100
		1101	$self->{_pkg}{$pkg} = $proxy;
		1102
		1103	for my $name (@HOOKNAME) {
		1104	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1105	$proxy->enable ($name => $ref);
		1106	}
		1107	}
		1108	}
		1109
		1110	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1111
		1112	Creates a new terminal, very similar as if you had started it with system
		1113	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1114	hash which defines the environment of the new terminal.
		1115
		1116	Croaks (and probably outputs an error message) if the new instance
		1117	couldn't be created. Returns C<undef> if the new instance didn't
		1118	initialise perl, and the terminal object otherwise. The C<init> and
		1119	C<start> hooks will be called before this call returns, and are free to
		1120	refer to global data (which is race free).
		1121
		1122	=cut
		1123
		1124	sub new {
		1125	my ($class, $env, @args) = @_;
		1126
		1127	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1128	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1129
		1130	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1131	}
		1132
532	=item $term->destroy	1133	=item $term->destroy
533		1134
534	Destroy the terminal object (close the window, free resources etc.).	1135	Destroy the terminal object (close the window, free resources
		1136	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		1137	watchers (timers, io watchers) are still active.
		1138
		1139	=item $term->exec_async ($cmd[, @args])
		1140
		1141	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1142	("starts") programs in the background. This function takes care of setting
		1143	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1144	be preferred over explicit calls to C<exec> or C<system>.
		1145
		1146	Returns the pid of the subprocess or C<undef> on error.
		1147
		1148	=cut
		1149
		1150	sub exec_async {
		1151	my $self = shift;
		1152
		1153	my $pid = fork;
		1154
		1155	return $pid
		1156	if !defined $pid or $pid;
		1157
		1158	%ENV = %{ $self->env };
		1159
		1160	exec @_;
		1161	urxvt::_exit 255;
		1162	}
		1163
		1164	=item $isset = $term->option ($optval[, $set])
		1165
		1166	Returns true if the option specified by C<$optval> is enabled, and
		1167	optionally change it. All option values are stored by name in the hash
		1168	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		1169
		1170	Here is a a likely non-exhaustive list of option names, please see the
		1171	source file F</src/optinc.h> to see the actual list:
		1172
		1173	borderLess console cursorBlink cursorUnderline hold iconic insecure
		1174	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
		1175	override-redirect pastableTabs pointerBlank reverseVideo scrollBar
		1176	scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
		1177	scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
		1178	transparent tripleclickwords utmpInhibit visualBell
535		1179
536	=item $value = $term->resource ($name[, $newval])	1180	=item $value = $term->resource ($name[, $newval])
537		1181
538	Returns the current resource value associated with a given name and	1182	Returns the current resource value associated with a given name and
539	optionally sets a new value. Setting values is most useful in the C<init>	1183	optionally sets a new value. Setting values is most useful in the C<init>
…		…
549		1193
550	Please note that resource strings will currently only be freed when the	1194	Please note that resource strings will currently only be freed when the
551	terminal is destroyed, so changing options frequently will eat memory.	1195	terminal is destroyed, so changing options frequently will eat memory.
552		1196
553	Here is a a likely non-exhaustive list of resource names, not all of which	1197	Here is a a likely non-exhaustive list of resource names, not all of which
554	are supported in every build, please see the source to see the actual	1198	are supported in every build, please see the source file F</src/rsinc.h>
555	list:	1199	to see the actual list:
556		1200
557	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1201	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
558	borderLess color cursorBlink cursorUnderline cutchars delete_key	1202	borderLess color cursorBlink cursorUnderline cutchars delete_key
559	display_name embed ext_bwidth fade font geometry hold iconName	1203	display_name embed ext_bwidth fade font geometry hold iconName
560	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1204	imFont imLocale inputMethod insecure int_bwidth intensityStyles
561	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1205	italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
562	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1206	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
563	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1207	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
564	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1208	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
565	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1209	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
566	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1210	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
567	shade term_name title transparent transparent_all tripleclickwords	1211	secondaryScreen secondaryScroll selectstyle shade term_name title
568	utmpInhibit visualBell	1212	transient_for transparent transparent_all tripleclickwords utmpInhibit
		1213	visualBell
569		1214
570	=cut	1215	=cut
571		1216
572	sub urxvt::term::resource($$;$) {	1217	sub resource($$;$) {
573	my ($self, $name) = (shift, shift);	1218	my ($self, $name) = (shift, shift);
574	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1219	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
575	goto &urxvt::term::_resource;	1220	&urxvt::term::_resource
576	}	1221	}
		1222
		1223	=item $value = $term->x_resource ($pattern)
		1224
		1225	Returns the X-Resource for the given pattern, excluding the program or
		1226	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1227	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1228	resource with that pattern exists.
		1229
		1230	This method should only be called during the C<on_start> hook, as there is
		1231	only one resource database per display, and later invocations might return
		1232	the wrong resources.
		1233
		1234	=item $success = $term->parse_keysym ($keysym_spec, $command_string)
		1235
		1236	Adds a keymap translation exactly as specified via a resource. See the
		1237	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
577		1238
578	=item $rend = $term->rstyle ([$new_rstyle])	1239	=item $rend = $term->rstyle ([$new_rstyle])
579		1240
580	Return and optionally change the current rendition. Text that is output by	1241	Return and optionally change the current rendition. Text that is output by
581	the terminal application will use this style.	1242	the terminal application will use this style.
…		…
592	=item ($row, $col) = $term->selection_end ([$row, $col])	1253	=item ($row, $col) = $term->selection_end ([$row, $col])
593		1254
594	Return the current values of the selection mark, begin or end positions,	1255	Return the current values of the selection mark, begin or end positions,
595	and optionally set them to new values.	1256	and optionally set them to new values.
596		1257
		1258	=item $term->selection_make ($eventtime[, $rectangular])
		1259
		1260	Tries to make a selection as set by C<selection_beg> and
		1261	C<selection_end>. If C<$rectangular> is true (default: false), a
		1262	rectangular selection will be made. This is the prefered function to make
		1263	a selection.
		1264
597	=item $success = $term->selection_grab ($eventtime)	1265	=item $success = $term->selection_grab ($eventtime)
598		1266
599	Try to request the primary selection from the server (for example, as set	1267	Try to request the primary selection text from the server (for example, as
600	by the next method).	1268	set by the next method). No visual feedback will be given. This function
		1269	is mostly useful from within C<on_sel_grab> hooks.
601		1270
602	=item $oldtext = $term->selection ([$newtext])	1271	=item $oldtext = $term->selection ([$newtext])
603		1272
604	Return the current selection text and optionally replace it by C<$newtext>.	1273	Return the current selection text and optionally replace it by C<$newtext>.
605		1274
606	#=item $term->overlay ($x, $y, $text)	1275	=item $term->overlay_simple ($x, $y, $text)
607	#	1276
608	#Create a simple multi-line overlay box. See the next method for details.	1277	Create a simple multi-line overlay box. See the next method for details.
609	#	1278
610	#=cut	1279	=cut
611	#	1280
612	#sub urxvt::term::scr_overlay {	1281	sub overlay_simple {
613	# my ($self, $x, $y, $text) = @_;	1282	my ($self, $x, $y, $text) = @_;
614	#	1283
615	# my @lines = split /\n/, $text;	1284	my @lines = split /\n/, $text;
616	#	1285
617	# my $w = 0;	1286	my $w = List::Util::max map $self->strwidth ($_), @lines;
618	# for (map $self->strwidth ($_), @lines) {	1287
619	# $w = $_ if $w < $_;
620	# }
621	#
622	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);	1288	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
623	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1289	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
624	#}	1290
		1291	$overlay
		1292	}
625		1293
626	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1294	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
627		1295
628	Create a new (empty) overlay at the given position with the given	1296	Create a new (empty) overlay at the given position with the given
629	width/height. C<$rstyle> defines the initial rendition style	1297	width/height. C<$rstyle> defines the initial rendition style
…		…
656		1324
657	If hidden, display the overlay again.	1325	If hidden, display the overlay again.
658		1326
659	=back	1327	=back
660		1328
		1329	=item $popup = $term->popup ($event)
		1330
		1331	Creates a new C<urxvt::popup> object that implements a popup menu. The
		1332	C<$event> I<must> be the event causing the menu to pop up (a button event,
		1333	currently).
		1334
		1335	=cut
		1336
		1337	sub popup {
		1338	my ($self, $event) = @_;
		1339
		1340	$self->grab ($event->{time}, 1)
		1341	or return;
		1342
		1343	my $popup = bless {
		1344	term => $self,
		1345	event => $event,
		1346	}, urxvt::popup::;
		1347
		1348	Scalar::Util::weaken $popup->{term};
		1349
		1350	$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
		1351	Scalar::Util::weaken $self->{_destroy}{$popup};
		1352
		1353	$popup
		1354	}
		1355
661	=item $cellwidth = $term->strwidth $string	1356	=item $cellwidth = $term->strwidth ($string)
662		1357
663	Returns the number of screen-cells this string would need. Correctly	1358	Returns the number of screen-cells this string would need. Correctly
664	accounts for wide and combining characters.	1359	accounts for wide and combining characters.
665		1360
666	=item $octets = $term->locale_encode $string	1361	=item $octets = $term->locale_encode ($string)
667		1362
668	Convert the given text string into the corresponding locale encoding.	1363	Convert the given text string into the corresponding locale encoding.
669		1364
670	=item $string = $term->locale_decode $octets	1365	=item $string = $term->locale_decode ($octets)
671		1366
672	Convert the given locale-encoded octets into a perl string.	1367	Convert the given locale-encoded octets into a perl string.
		1368
		1369	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1370
		1371	XORs the rendition values in the given span with the provided value
		1372	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1373	refresh hooks to provide effects similar to the selection.
		1374
		1375	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1376
		1377	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1378	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1379	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1380	it instead. Both styles I<MUST NOT> contain font styles.
		1381
		1382	=item $term->scr_bell
		1383
		1384	Ring the bell!
673		1385
674	=item $term->scr_add_lines ($string)	1386	=item $term->scr_add_lines ($string)
675		1387
676	Write the given text string to the screen, as if output by the application	1388	Write the given text string to the screen, as if output by the application
677	running inside the terminal. It may not contain command sequences (escape	1389	running inside the terminal. It may not contain command sequences (escape
…		…
680		1392
681	Normally its not a good idea to use this function, as programs might be	1393	Normally its not a good idea to use this function, as programs might be
682	confused by changes in cursor position or scrolling. Its useful inside a	1394	confused by changes in cursor position or scrolling. Its useful inside a
683	C<on_add_lines> hook, though.	1395	C<on_add_lines> hook, though.
684		1396
		1397	=item $term->scr_change_screen ($screen)
		1398
		1399	Switch to given screen - 0 primary, 1 secondary.
		1400
685	=item $term->cmd_parse ($octets)	1401	=item $term->cmd_parse ($octets)
686		1402
687	Similar to C<scr_add_lines>, but the argument must be in the	1403	Similar to C<scr_add_lines>, but the argument must be in the
688	locale-specific encoding of the terminal and can contain command sequences	1404	locale-specific encoding of the terminal and can contain command sequences
689	(escape codes) that will be interpreted.	1405	(escape codes) that will be interpreted.
…		…
692		1408
693	Write the octets given in C<$data> to the tty (i.e. as program input). To	1409	Write the octets given in C<$data> to the tty (i.e. as program input). To
694	pass characters instead of octets, you should convert your strings first	1410	pass characters instead of octets, you should convert your strings first
695	to the locale-specific encoding using C<< $term->locale_encode >>.	1411	to the locale-specific encoding using C<< $term->locale_encode >>.
696		1412
		1413	=item $old_events = $term->pty_ev_events ([$new_events])
		1414
		1415	Replaces the event mask of the pty watcher by the given event mask. Can
		1416	be used to suppress input and output handling to the pty/tty. See the
		1417	description of C<< urxvt::timer->events >>. Make sure to always restore
		1418	the previous value.
		1419
		1420	=item $fd = $term->pty_fd
		1421
		1422	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1423	is used.
		1424
		1425	=item $windowid = $term->parent
		1426
		1427	Return the window id of the toplevel window.
		1428
		1429	=item $windowid = $term->vt
		1430
		1431	Return the window id of the terminal window.
		1432
		1433	=item $term->vt_emask_add ($x_event_mask)
		1434
		1435	Adds the specified events to the vt event mask. Useful e.g. when you want
		1436	to receive pointer events all the times:
		1437
		1438	$term->vt_emask_add (urxvt::PointerMotionMask);
		1439
		1440	=item $term->focus_in
		1441
		1442	=item $term->focus_out
		1443
		1444	=item $term->key_press ($state, $keycode[, $time])
		1445
		1446	=item $term->key_release ($state, $keycode[, $time])
		1447
		1448	Deliver various fake events to to terminal.
		1449
697	=item $window_width = $term->width	1450	=item $window_width = $term->width
698		1451
699	=item $window_height = $term->height	1452	=item $window_height = $term->height
700		1453
701	=item $font_width = $term->fwidth	1454	=item $font_width = $term->fwidth
…		…
714		1467
715	=item $max_scrollback = $term->saveLines	1468	=item $max_scrollback = $term->saveLines
716		1469
717	=item $nrow_plus_saveLines = $term->total_rows	1470	=item $nrow_plus_saveLines = $term->total_rows
718		1471
719	=item $lines_in_scrollback = $term->nsaved	1472	=item $topmost_scrollback_row = $term->top_row
720		1473
721	Return various integers describing terminal characteristics.	1474	Return various integers describing terminal characteristics.
722		1475
		1476	=item $x_display = $term->display_id
		1477
		1478	Return the DISPLAY used by rxvt-unicode.
		1479
		1480	=item $lc_ctype = $term->locale
		1481
		1482	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1483
		1484	=item $env = $term->env
		1485
		1486	Returns a copy of the environment in effect for the terminal as a hashref
		1487	similar to C<\%ENV>.
		1488
		1489	=item @envv = $term->envv
		1490
		1491	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1492
		1493	=item @argv = $term->argv
		1494
		1495	Return the argument vector as this terminal, similar to @ARGV, but
		1496	includes the program name as first element.
		1497
		1498	=cut
		1499
		1500	sub env {
		1501	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1502	}
		1503
		1504	=item $modifiermask = $term->ModLevel3Mask
		1505
		1506	=item $modifiermask = $term->ModMetaMask
		1507
		1508	=item $modifiermask = $term->ModNumLockMask
		1509
		1510	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1511	AltGr), the meta key (often Alt) and the num lock key, if applicable.
		1512
		1513	=item $screen = $term->current_screen
		1514
		1515	Returns the currently displayed screen (0 primary, 1 secondary).
		1516
		1517	=item $cursor_is_hidden = $term->hidden_cursor
		1518
		1519	Returns wether the cursor is currently hidden or not.
		1520
723	=item $view_start = $term->view_start ([$newvalue])	1521	=item $view_start = $term->view_start ([$newvalue])
724		1522
725	Returns the negative row number of the topmost line. Minimum value is	1523	Returns the row number of the topmost displayed line. Maximum value is
726	C<0>, which displays the normal terminal contents. Larger values scroll	1524	C<0>, which displays the normal terminal contents. Lower values scroll
727	this many lines into the scrollback buffer.	1525	this many lines into the scrollback buffer.
728		1526
729	=item $term->want_refresh	1527	=item $term->want_refresh
730		1528
731	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1529	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
746	line, starting at column C<$start_col> (default C<0>), which is useful	1544	line, starting at column C<$start_col> (default C<0>), which is useful
747	to replace only parts of a line. The font index in the rendition will	1545	to replace only parts of a line. The font index in the rendition will
748	automatically be updated.	1546	automatically be updated.
749		1547
750	C<$text> is in a special encoding: tabs and wide characters that use more	1548	C<$text> is in a special encoding: tabs and wide characters that use more
751	than one cell when displayed are padded with urxvt::NOCHAR characters	1549	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
752	(C<chr 65535>). Characters with combining characters and other characters	1550	characters. Characters with combining characters and other characters that
753	that do not fit into the normal tetx encoding will be replaced with	1551	do not fit into the normal tetx encoding will be replaced with characters
754	characters in the private use area.	1552	in the private use area.
755		1553
756	You have to obey this encoding when changing text. The advantage is	1554	You have to obey this encoding when changing text. The advantage is
757	that C<substr> and similar functions work on screen cells and not on	1555	that C<substr> and similar functions work on screen cells and not on
758	characters.	1556	characters.
759		1557
…		…
810	Return the row number of the first/last row of the line, respectively.	1608	Return the row number of the first/last row of the line, respectively.
811		1609
812	=item $offset = $line->offset_of ($row, $col)	1610	=item $offset = $line->offset_of ($row, $col)
813		1611
814	Returns the character offset of the given row|col pair within the logical	1612	Returns the character offset of the given row|col pair within the logical
815	line.	1613	line. Works for rows outside the line, too, and returns corresponding
		1614	offsets outside the string.
816		1615
817	=item ($row, $col) = $line->coord_of ($offset)	1616	=item ($row, $col) = $line->coord_of ($offset)
818		1617
819	Translates a string offset into terminal coordinates again.	1618	Translates a string offset into terminal coordinates again.
820		1619
821	=back	1620	=back
822		1621
823	=cut	1622	=cut
824		1623
825	sub urxvt::term::line {	1624	sub line {
826	my ($self, $row) = @_;	1625	my ($self, $row) = @_;
827		1626
828	my $maxrow = $self->nrow - 1;	1627	my $maxrow = $self->nrow - 1;
829		1628
830	my ($beg, $end) = ($row, $row);	1629	my ($beg, $end) = ($row, $row);
…		…
894	$offset / $self->{ncol} + $self->{beg},	1693	$offset / $self->{ncol} + $self->{beg},
895	$offset % $self->{ncol}	1694	$offset % $self->{ncol}
896	)	1695	)
897	}	1696	}
898		1697
899	=item ($row, $col) = $line->coord_of ($offset)
900	=item $text = $term->special_encode $string	1698	=item $text = $term->special_encode $string
901		1699
902	Converts a perl string into the special encoding used by rxvt-unicode,	1700	Converts a perl string into the special encoding used by rxvt-unicode,
903	where one character corresponds to one screen cell. See	1701	where one character corresponds to one screen cell. See
904	C<< $term->ROW_t >> for details.	1702	C<< $term->ROW_t >> for details.
…		…
906	=item $string = $term->special_decode $text	1704	=item $string = $term->special_decode $text
907		1705
908	Converts rxvt-unicodes text reprsentation into a perl string. See	1706	Converts rxvt-unicodes text reprsentation into a perl string. See
909	C<< $term->ROW_t >> for details.	1707	C<< $term->ROW_t >> for details.
910		1708
		1709	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		1710
		1711	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1712
		1713	Register/unregister a synchronous button grab. See the XGrabButton
		1714	manpage.
		1715
		1716	=item $success = $term->grab ($eventtime[, $sync])
		1717
		1718	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1719	synchronous (C<$sync> is true). Also remembers the grab timestampe.
		1720
		1721	=item $term->allow_events_async
		1722
		1723	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1724
		1725	=item $term->allow_events_sync
		1726
		1727	Calls XAllowEvents with SyncBoth for the most recent grab.
		1728
		1729	=item $term->allow_events_replay
		1730
		1731	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1732	recent grab.
		1733
		1734	=item $term->ungrab
		1735
		1736	Calls XUngrab for the most recent grab. Is called automatically on
		1737	evaluation errors, as it is better to lose the grab in the error case as
		1738	the session.
		1739
		1740	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1741
		1742	=item $atom_name = $term->XGetAtomName ($atom)
		1743
		1744	=item @atoms = $term->XListProperties ($window)
		1745
		1746	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1747
		1748	=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
		1749
		1750	=item $term->XDeleteProperty ($window, $property)
		1751
		1752	=item $window = $term->DefaultRootWindow
		1753
		1754	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1755
		1756	=item $term->XMapWindow ($window)
		1757
		1758	=item $term->XUnmapWindow ($window)
		1759
		1760	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1761
		1762	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1763
		1764	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1765
		1766	Various X or X-related functions. The C<$term> object only serves as
		1767	the source of the display, otherwise those functions map more-or-less
		1768	directory onto the X functions of the same name.
		1769
911	=back	1770	=back
		1771
		1772	=cut
		1773
		1774	package urxvt::popup;
		1775
		1776	=head2 The C<urxvt::popup> Class
		1777
		1778	=over 4
		1779
		1780	=cut
		1781
		1782	sub add_item {
		1783	my ($self, $item) = @_;
		1784
		1785	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1786	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1787	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1788
		1789	$item->{render} ||= sub { $_[0]{text} };
		1790
		1791	push @{ $self->{item} }, $item;
		1792	}
		1793
		1794	=item $popup->add_title ($title)
		1795
		1796	Adds a non-clickable title to the popup.
		1797
		1798	=cut
		1799
		1800	sub add_title {
		1801	my ($self, $title) = @_;
		1802
		1803	$self->add_item ({
		1804	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1805	text => $title,
		1806	activate => sub { },
		1807	});
		1808	}
		1809
		1810	=item $popup->add_separator ([$sepchr])
		1811
		1812	Creates a separator, optionally using the character given as C<$sepchr>.
		1813
		1814	=cut
		1815
		1816	sub add_separator {
		1817	my ($self, $sep) = @_;
		1818
		1819	$sep ||= "=";
		1820
		1821	$self->add_item ({
		1822	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1823	text => "",
		1824	render => sub { $sep x $self->{term}->ncol },
		1825	activate => sub { },
		1826	});
		1827	}
		1828
		1829	=item $popup->add_button ($text, $cb)
		1830
		1831	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1832	selected.
		1833
		1834	=cut
		1835
		1836	sub add_button {
		1837	my ($self, $text, $cb) = @_;
		1838
		1839	$self->add_item ({ type => "button", text => $text, activate => $cb});
		1840	}
		1841
		1842	=item $popup->add_toggle ($text, $initial_value, $cb)
		1843
		1844	Adds a toggle/checkbox item to the popup. The callback gets called
		1845	whenever it gets toggled, with a boolean indicating its new value as its
		1846	first argument.
		1847
		1848	=cut
		1849
		1850	sub add_toggle {
		1851	my ($self, $text, $value, $cb) = @_;
		1852
		1853	my $item; $item = {
		1854	type => "button",
		1855	text => " $text",
		1856	value => $value,
		1857	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		1858	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		1859	};
		1860
		1861	$self->add_item ($item);
		1862	}
		1863
		1864	=item $popup->show
		1865
		1866	Displays the popup (which is initially hidden).
		1867
		1868	=cut
		1869
		1870	sub show {
		1871	my ($self) = @_;
		1872
		1873	local $urxvt::popup::self = $self;
		1874
		1875	my $env = $self->{term}->env;
		1876	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		1877	delete $env->{LC_ALL};
		1878	$env->{LC_CTYPE} = $self->{term}->locale;
		1879
		1880	urxvt::term->new ($env, "popup",
		1881	"--perl-lib" => "", "--perl-ext-common" => "",
		1882	"-pty-fd" => -1, "-sl" => 0,
		1883	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
		1884	"--transient-for" => $self->{term}->parent,
		1885	"-display" => $self->{term}->display_id,
		1886	"-pe" => "urxvt-popup")
		1887	or die "unable to create popup window\n";
		1888	}
		1889
		1890	sub DESTROY {
		1891	my ($self) = @_;
		1892
		1893	delete $self->{term}{_destroy}{$self};
		1894	$self->{term}->ungrab;
		1895	}
		1896
		1897	=back
		1898
		1899	=cut
		1900
		1901	package urxvt::watcher;
		1902
		1903	@urxvt::timer::ISA = __PACKAGE__;
		1904	@urxvt::iow::ISA = __PACKAGE__;
		1905	@urxvt::pw::ISA = __PACKAGE__;
		1906	@urxvt::iw::ISA = __PACKAGE__;
912		1907
913	=head2 The C<urxvt::timer> Class	1908	=head2 The C<urxvt::timer> Class
914		1909
915	This class implements timer watchers/events. Time is represented as a	1910	This class implements timer watchers/events. Time is represented as a
916	fractional number of seconds since the epoch. Example:	1911	fractional number of seconds since the epoch. Example:
…		…
955		1950
956	=item $timer = $timer->start ($tstamp)	1951	=item $timer = $timer->start ($tstamp)
957		1952
958	Set the event trigger time to C<$tstamp> and start the timer.	1953	Set the event trigger time to C<$tstamp> and start the timer.
959		1954
		1955	=item $timer = $timer->after ($delay)
		1956
		1957	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
		1958
960	=item $timer = $timer->stop	1959	=item $timer = $timer->stop
961		1960
962	Stop the timer.	1961	Stop the timer.
963		1962
964	=back	1963	=back
…		…
969		1968
970	$term->{socket} = ...	1969	$term->{socket} = ...
971	$term->{iow} = urxvt::iow	1970	$term->{iow} = urxvt::iow
972	->new	1971	->new
973	->fd (fileno $term->{socket})	1972	->fd (fileno $term->{socket})
974	->events (1) # wait for read data	1973	->events (urxvt::EVENT_READ)
975	->start	1974	->start
976	->cb (sub {	1975	->cb (sub {
977	my ($iow, $revents) = @_;	1976	my ($iow, $revents) = @_;
978	# $revents must be 1 here, no need to check	1977	# $revents must be 1 here, no need to check
979	sysread $term->{socket}, my $buf, 8192	1978	sysread $term->{socket}, my $buf, 8192
…		…
996		1995
997	Set the filedescriptor (not handle) to watch.	1996	Set the filedescriptor (not handle) to watch.
998		1997
999	=item $iow = $iow->events ($eventmask)	1998	=item $iow = $iow->events ($eventmask)
1000		1999
1001	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2000	Set the event mask to watch. The only allowed values are
1002	data, Bit #1 (value C<2>) enables watching for write data.	2001	C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
		2002	together, or C<urxvt::EVENT_NONE>.
1003		2003
1004	=item $iow = $iow->start	2004	=item $iow = $iow->start
1005		2005
1006	Start watching for requested events on the given handle.	2006	Start watching for requested events on the given handle.
1007		2007
1008	=item $iow = $iow->stop	2008	=item $iow = $iow->stop
1009		2009
1010	Stop watching for events on the given filehandle.	2010	Stop watching for events on the given filehandle.
		2011
		2012	=back
		2013
		2014	=head2 The C<urxvt::iw> Class
		2015
		2016	This class implements idle watchers, that get called automatically when
		2017	the process is idle. They should return as fast as possible, after doing
		2018	some useful work.
		2019
		2020	=over 4
		2021
		2022	=item $iw = new urxvt::iw
		2023
		2024	Create a new idle watcher object in stopped state.
		2025
		2026	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2027
		2028	Set the callback to be called when the watcher triggers.
		2029
		2030	=item $timer = $timer->start
		2031
		2032	Start the watcher.
		2033
		2034	=item $timer = $timer->stop
		2035
		2036	Stop the watcher.
		2037
		2038	=back
		2039
		2040	=head2 The C<urxvt::pw> Class
		2041
		2042	This class implements process watchers. They create an event whenever a
		2043	process exits, after which they stop automatically.
		2044
		2045	my $pid = fork;
		2046	...
		2047	$term->{pw} = urxvt::pw
		2048	->new
		2049	->start ($pid)
		2050	->cb (sub {
		2051	my ($pw, $exit_status) = @_;
		2052	...
		2053	});
		2054
		2055	=over 4
		2056
		2057	=item $pw = new urxvt::pw
		2058
		2059	Create a new process watcher in stopped state.
		2060
		2061	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2062
		2063	Set the callback to be called when the timer triggers.
		2064
		2065	=item $pw = $timer->start ($pid)
		2066
		2067	Tells the wqtcher to start watching for process C<$pid>.
		2068
		2069	=item $pw = $pw->stop
		2070
		2071	Stop the watcher.
1011		2072
1012	=back	2073	=back
1013		2074
1014	=head1 ENVIRONMENT	2075	=head1 ENVIRONMENT
1015		2076
…		…
1018	This variable controls the verbosity level of the perl extension. Higher	2079	This variable controls the verbosity level of the perl extension. Higher
1019	numbers indicate more verbose output.	2080	numbers indicate more verbose output.
1020		2081
1021	=over 4	2082	=over 4
1022		2083
1023	=item =0 - only fatal messages	2084	=item == 0 - fatal messages
1024		2085
1025	=item =3 - script loading and management	2086	=item >= 3 - script loading and management
1026		2087
1027	=item =10 - all events received	2088	=item >=10 - all called hooks
		2089
		2090	=item >=11 - hook reutrn values
1028		2091
1029	=back	2092	=back
1030		2093
1031	=head1 AUTHOR	2094	=head1 AUTHOR
1032		2095

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