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Revision 1.49 by root, Sun Jan 8 00:07:18 2006 UTC vs.
Revision 1.142 by root, Thu Jul 6 18:56:10 2006 UTC

…		…
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
61	=item digital-clock	94	=item option-popup (enabled by default)
62		95
63	Displays a digital clock using the built-in overlay.	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	The regex defaults to "(?i)", resulting in a case-insensitive search. To
		157	get a case-sensitive search you can delete this prefix using C<BackSpace>
		158	or simply use an uppercase character which removes the "(?i)" prefix.
		159
		160	See L<perlre> for more info about perl regular expression syntax.
		161
		162	=item readline (enabled by default)
		163
		164	A support package that tries to make editing with readline easier. At
		165	the moment, it reacts to clicking shift-left mouse button by trying to
		166	move the text cursor to this position. It does so by generating as many
		167	cursor-left or cursor-right keypresses as required (the this only works
		168	for programs that correctly support wide characters).
		169
		170	To avoid too many false positives, this is only done when:
		171
		172	=over 4
		173
		174	=item - the tty is in ICANON state.
		175
		176	=item - the text cursor is visible.
		177
		178	=item - the primary screen is currently being displayed.
		179
		180	=item - the mouse is on the same (multi-row-) line as the text cursor.
		181
		182	=back
		183
		184	The normal selection mechanism isn't disabled, so quick successive clicks
		185	might interfere with selection creation in harmless ways.
		186
		187	=item selection-autotransform
		188
		189	This selection allows you to do automatic transforms on a selection
		190	whenever a selection is made.
		191
		192	It works by specifying perl snippets (most useful is a single C<s///>
		193	operator) that modify C<$_> as resources:
		194
		195	URxvt.selection-autotransform.0: transform
		196	URxvt.selection-autotransform.1: transform
		197	...
		198
		199	For example, the following will transform selections of the form
		200	C<filename:number>, often seen in compiler messages, into C<vi +$filename
		201	$word>:
		202
		203	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
		204
		205	And this example matches the same,but replaces it with vi-commands you can
		206	paste directly into your (vi :) editor:
		207
		208	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
		209
		210	Of course, this can be modified to suit your needs and your editor :)
		211
		212	To expand the example above to typical perl error messages ("XXX at
		213	FILENAME line YYY."), you need a slightly more elaborate solution:
		214
		215	URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
		216	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
		217
		218	The first line tells the selection code to treat the unchanging part of
		219	every error message as a selection pattern, and the second line transforms
		220	the message into vi commands to load the file.
		221
		222	=item tabbed
		223
		224	This transforms the terminal into a tabbar with additional terminals, that
		225	is, it implements what is commonly refered to as "tabbed terminal". The topmost line
		226	displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
		227	button per tab.
		228
		229	Clicking a button will activate that tab. Pressing B<Shift-Left> and
		230	B<Shift-Right> will switch to the tab left or right of the current one,
		231	while B<Shift-Down> creates a new tab.
		232
		233	The tabbar itself can be configured similarly to a normal terminal, but
		234	with a resource class of C<URxvt.tabbed>. In addition, it supports the
		235	following four resources (shown with defaults):
		236
		237	URxvt.tabbed.tabbar-fg: <colour-index, default 3>
		238	URxvt.tabbed.tabbar-bg: <colour-index, default 0>
		239	URxvt.tabbed.tab-fg: <colour-index, default 0>
		240	URxvt.tabbed.tab-bg: <colour-index, default 1>
		241
		242	See I<COLOR AND GRAPHICS> in the @@RXVT_NAME@@(1) manpage for valid
		243	indices.
64		244
65	=item mark-urls	245	=item mark-urls
66		246
67	Uses per-line display filtering (C<on_line_update>) to underline urls.	247	Uses per-line display filtering (C<on_line_update>) to underline urls and
		248	make them clickable. When middle-clicked, the program specified in the
		249	resource C<urlLauncher> (default C<x-www-browser>) will be started with
		250	the URL as first argument.
		251
		252	=item xim-onthespot
		253
		254	This (experimental) perl extension implements OnTheSpot editing. It does
		255	not work perfectly, and some input methods don't seem to work well with
		256	OnTheSpot editing in general, but it seems to work at leats for SCIM and
		257	kinput2.
		258
		259	You enable it by specifying this extension and a preedit style of
		260	C<OnTheSpot>, i.e.:
		261
		262	@@RXVT_NAME@@ -pt OnTheSpot -pe xim-onthespot
		263
		264	=item automove-background
		265
		266	This is basically a very small extension that dynamically changes the
		267	background pixmap offset to the window position, in effect creating the
		268	same effect as pseudo transparency with a custom pixmap. No scaling is
		269	supported in this mode. Exmaple:
		270
		271	@@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
68		272
69	=item block-graphics-to-ascii	273	=item block-graphics-to-ascii
70		274
71	A not very useful example of filtering all text output to the terminal,	275	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	276	by replacing all line-drawing characters (U+2500 .. U+259F) by a
73	similar-looking ascii character.	277	similar-looking ascii character.
		278
		279	=item digital-clock
		280
		281	Displays a digital clock using the built-in overlay.
		282
		283	=item remote-clipboard
		284
		285	Somewhat of a misnomer, this extension adds two menu entries to the
		286	selection popup that allows one ti run external commands to store the
		287	selection somewhere and fetch it again.
		288
		289	We use it to implement a "distributed selection mechanism", which just
		290	means that one command uploads the file to a remote server, and another
		291	reads it.
		292
		293	The commands can be set using the C<URxvt.remote-selection.store> and
		294	C<URxvt.remote-selection.fetch> resources. The first should read the
		295	selection to store from STDIN (always in UTF-8), the second should provide
		296	the selection data on STDOUT (also in UTF-8).
		297
		298	The defaults (which are likely useless to you) use rsh and cat:
		299
		300	URxvt.remote-selection.store: rsh ruth 'cat >/tmp/distributed-selection'
		301	URxvt.remote-selection.fetch: rsh ruth 'cat /tmp/distributed-selection'
		302
		303	=item selection-pastebin
		304
		305	This is a little rarely useful extension that Uploads the selection as
		306	textfile to a remote site (or does other things). (The implementation is
		307	not currently secure for use in a multiuser environment as it writes to
		308	F</tmp> directly.).
		309
		310	It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
		311	i.e.
		312
		313	URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
		314
		315	Pressing this combination runs a command with C<%> replaced by the name of
		316	the textfile. This command can be set via a resource:
		317
		318	URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
		319
		320	And the default is likely not useful to anybody but the few people around
		321	here :)
		322
		323	The name of the textfile is the hex encoded md5 sum of the selection, so
		324	the same content should lead to the same filename.
		325
		326	After a successful upload the selection will be replaced by the text given
		327	in the C<selection-pastebin-url> resource (again, the % is the placeholder
		328	for the filename):
		329
		330	URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
74		331
75	=item example-refresh-hooks	332	=item example-refresh-hooks
76		333
77	Displays a very simple digital clock in the upper right corner of the	334	Displays a very simple digital clock in the upper right corner of the
78	window. Illustrates overwriting the refresh callbacks to create your own	335	window. Illustrates overwriting the refresh callbacks to create your own
79	overlays or changes.	336	overlays or changes.
80		337
81	=back	338	=back
		339
		340	=head1 API DOCUMENTATION
82		341
83	=head2 General API Considerations	342	=head2 General API Considerations
84		343
85	All objects (such as terminals, time watchers etc.) are typical	344	All objects (such as terminals, time watchers etc.) are typical
86	reference-to-hash objects. The hash can be used to store anything you	345	reference-to-hash objects. The hash can be used to store anything you
…		…
99	=over 4	358	=over 4
100		359
101	=item $text	360	=item $text
102		361
103	Rxvt-unicodes special way of encoding text, where one "unicode" character	362	Rxvt-unicodes 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.	363	always represents one screen cell. See L<ROW_t> for a discussion of this format.
105		364
106	=item $string	365	=item $string
107		366
108	A perl text string, with an emphasis on I<text>. It can store all unicode	367	A perl text string, with an emphasis on I<text>. It can store all unicode
109	characters and is to be distinguished with text encoded in a specific	368	characters and is to be distinguished with text encoded in a specific
…		…
114	Either binary data or - more common - a text string encoded in a	373	Either binary data or - more common - a text string encoded in a
115	locale-specific way.	374	locale-specific way.
116		375
117	=back	376	=back
118		377
		378	=head2 Extension Objects
		379
		380	Every perl extension is a perl class. A separate perl object is created
		381	for each terminal and each extension and passed as the first parameter to
		382	hooks. So extensions can use their C<$self> object without having to think
		383	about other extensions, with the exception of methods and members that
		384	begin with an underscore character C<_>: these are reserved for internal
		385	use.
		386
		387	Although it isn't a C<urxvt::term> object, you can call all methods of the
		388	C<urxvt::term> class on this object.
		389
		390	It has the following methods and data members:
		391
		392	=over 4
		393
		394	=item $urxvt_term = $self->{term}
		395
		396	Returns the C<urxvt::term> object associated with this instance of the
		397	extension. This member I<must not> be changed in any way.
		398
		399	=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
		400
		401	Dynamically enable the given hooks (named without the C<on_> prefix) for
		402	this extension, replacing any previous hook. This is useful when you want
		403	to overwrite time-critical hooks only temporarily.
		404
		405	=item $self->disable ($hook_name[, $hook_name..])
		406
		407	Dynamically disable the given hooks.
		408
		409	=back
		410
119	=head2 Hooks	411	=head2 Hooks
120		412
121	The following subroutines can be declared in extension files, and will be	413	The following subroutines can be declared in extension files, and will be
122	called whenever the relevant event happens.	414	called whenever the relevant event happens.
123		415
124	The first argument passed to them is an object private to each terminal	416	The first argument passed to them is an extension oject as described in
125	and extension package. You can call all C<urxvt::term> methods on it, but	417	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. It is, however, blessed intot he package of the extension script,
129	so for all practical purposes you can treat an extension script as a class.
130		418
131	All of them must return a boolean value. If it is true, then the event	419	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,	420	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.	421	relevant action might not be carried out by the C++ code.
134		422
135	When in doubt, return a false value (preferably C<()>).	423	I<< When in doubt, return a false value (preferably C<()>). >>
136		424
137	=over 4	425	=over 4
138		426
139	=item on_init $term	427	=item on_init $term
140		428
141	Called after a new terminal object has been initialized, but before	429	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	430	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	431	call or deliver senseless data, as terminal size and other characteristics
144	have not yet been determined. You can safely query and change resources,	432	have not yet been determined. You can safely query and change resources
145	though.	433	and options, though. For many purposes the C<on_start> hook is a better
		434	place.
		435
		436	=item on_start $term
		437
		438	Called at the very end of initialisation of a new terminal, just before
		439	trying to map (display) the toplevel and returning to the mainloop.
		440
		441	=item on_destroy $term
		442
		443	Called whenever something tries to destroy terminal, when the terminal is
		444	still fully functional (not for long, though).
146		445
147	=item on_reset $term	446	=item on_reset $term
148		447
149	Called after the screen is "reset" for any reason, such as resizing or	448	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	449	control sequences. Here is where you can react on changes to size-related
151	variables.	450	variables.
152		451
153	=item on_start $term	452	=item on_child_start $term, $pid
154		453
155	Called at the very end of initialisation of a new terminal, just before	454	Called just after the child process has been C<fork>ed.
156	returning to the mainloop.	455
		456	=item on_child_exit $term, $status
		457
		458	Called just after the child process has exited. C<$status> is the status
		459	from C<waitpid>.
157		460
158	=item on_sel_make $term, $eventtime	461	=item on_sel_make $term, $eventtime
159		462
160	Called whenever a selection has been made by the user, but before the	463	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	464	selection text is copied, so changes to the beginning, end or type of the
…		…
175	=item on_sel_extend $term	478	=item on_sel_extend $term
176		479
177	Called whenever the user tries to extend the selection (e.g. with a double	480	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	481	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	482	should extend the selection itelf and return true to suppress the built-in
180	processing.	483	processing. This can happen multiple times, as long as the callback
		484	returns true, it will be called on every further click by the user and is
		485	supposed to enlarge the selection more and more, if possible.
181		486
182	See the F<selection> example extension.	487	See the F<selection> example extension.
183		488
184	=item on_view_change $term, $offset	489	=item on_view_change $term, $offset
185		490
…		…
195		500
196	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	501	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
197	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	502	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
198	number of lines that will be in the scrollback buffer.	503	number of lines that will be in the scrollback buffer.
199		504
200	=item on_tty_activity $term *NYI*	505	=item on_osc_seq $term, $op, $args
201		506
202	Called whenever the program(s) running in the urxvt window send output.	507	Called on every OSC sequence and can be used to suppress it or modify its
		508	behaviour. The default should be to return an empty list. A true value
		509	suppresses execution of the request completely. Make sure you don't get
		510	confused by recursive invocations when you output an osc sequence within
		511	this callback.
203		512
		513	C<on_osc_seq_perl> should be used for new behaviour.
		514
204	=item on_osc_seq $term, $string	515	=item on_osc_seq_perl $term, $string
205		516
206	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	517	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
207	operating system command) is processed. Cursor position and other state	518	operating system command) is processed. Cursor position and other state
208	information is up-to-date when this happens. For interoperability, the	519	information is up-to-date when this happens. For interoperability, the
209	string should start with the extension name and a colon, to distinguish	520	string should start with the extension name and a colon, to distinguish
…		…
220	can filter/change and output the text yourself by returning a true value	531	can filter/change and output the text yourself by returning a true value
221	and calling C<< $term->scr_add_lines >> yourself. Please note that this	532	and calling C<< $term->scr_add_lines >> yourself. Please note that this
222	might be very slow, however, as your hook is called for B<all> text being	533	might be very slow, however, as your hook is called for B<all> text being
223	output.	534	output.
224		535
		536	=item on_tt_write $term, $octets
		537
		538	Called whenever some data is written to the tty/pty and can be used to
		539	suppress or filter tty input.
		540
225	=item on_line_update $term, $row	541	=item on_line_update $term, $row
226		542
227	Called whenever a line was updated or changed. Can be used to filter	543	Called whenever a line was updated or changed. Can be used to filter
228	screen output (e.g. underline urls or other useless stuff). Only lines	544	screen output (e.g. underline urls or other useless stuff). Only lines
229	that are being shown will be filtered, and, due to performance reasons,	545	that are being shown will be filtered, and, due to performance reasons,
…		…
245		561
246	=item on_refresh_end $term	562	=item on_refresh_end $term
247		563
248	Called just after the screen gets redrawn. See C<on_refresh_begin>.	564	Called just after the screen gets redrawn. See C<on_refresh_begin>.
249		565
250	=item on_keyboard_command $term, $string	566	=item on_user_command $term, $string
251		567
252	Called whenever the user presses a key combination that has a	568	Called whenever the a user-configured event is being activated (e.g. via
253	C<perl:string> action bound to it (see description of the B<keysym>	569	a C<perl:string> action bound to a key, see description of the B<keysym>
254	resource in the @@RXVT_NAME@@(1) manpage).	570	resource in the @@RXVT_NAME@@(1) manpage).
		571
		572	The event is simply the action string. This interface is assumed to change
		573	slightly in the future.
		574
		575	=item on_resize_all_windows $tern, $new_width, $new_height
		576
		577	Called just after the new window size has been calculcated, but before
		578	windows are actually being resized or hints are being set. If this hook
		579	returns TRUE, setting of the window hints is being skipped.
		580
		581	=item on_x_event $term, $event
		582
		583	Called on every X event received on the vt window (and possibly other
		584	windows). Should only be used as a last resort. Most event structure
		585	members are not passed.
255		586
256	=item on_focus_in $term	587	=item on_focus_in $term
257		588
258	Called whenever the window gets the keyboard focus, before rxvt-unicode	589	Called whenever the window gets the keyboard focus, before rxvt-unicode
259	does focus in processing.	590	does focus in processing.
…		…
261	=item on_focus_out $term	592	=item on_focus_out $term
262		593
263	Called wheneever the window loses keyboard focus, before rxvt-unicode does	594	Called wheneever the window loses keyboard focus, before rxvt-unicode does
264	focus out processing.	595	focus out processing.
265		596
		597	=item on_configure_notify $term, $event
		598
		599	=item on_property_notify $term, $event
		600
266	=item on_key_press $term, $event, $octets	601	=item on_key_press $term, $event, $keysym, $octets
267		602
268	=item on_key_release $term, $event	603	=item on_key_release $term, $event, $keysym
269		604
270	=item on_button_press $term, $event	605	=item on_button_press $term, $event
271		606
272	=item on_button_release $term, $event	607	=item on_button_release $term, $event
273		608
…		…
279		614
280	Called whenever the corresponding X event is received for the terminal If	615	Called whenever the corresponding X event is received for the terminal If
281	the hook returns true, then the even will be ignored by rxvt-unicode.	616	the hook returns true, then the even will be ignored by rxvt-unicode.
282		617
283	The event is a hash with most values as named by Xlib (see the XEvent	618	The event is a hash with most values as named by Xlib (see the XEvent
284	manpage), with the additional members C<row> and C<col>, which are the row	619	manpage), with the additional members C<row> and C<col>, which are the
285	and column under the mouse cursor.	620	(real, not screen-based) row and column under the mouse cursor.
286		621
287	C<on_key_press> additionally receives the string rxvt-unicode would	622	C<on_key_press> additionally receives the string rxvt-unicode would
288	output, if any, in locale-specific encoding.	623	output, if any, in locale-specific encoding.
289		624
290	subwindow.	625	subwindow.
291		626
		627	=item on_client_message $term, $event
		628
		629	=item on_wm_protocols $term, $event
		630
		631	=item on_wm_delete_window $term, $event
		632
		633	Called when various types of ClientMessage events are received (all with
		634	format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
		635
292	=back	636	=back
293		637
		638	=cut
		639
		640	package urxvt;
		641
		642	use utf8;
		643	use strict;
		644	use Carp ();
		645	use Scalar::Util ();
		646	use List::Util ();
		647
		648	our $VERSION = 1;
		649	our $TERM;
		650	our @TERM_INIT;
		651	our @TERM_EXT;
		652	our @HOOKNAME;
		653	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		654	our %OPTION;
		655
		656	our $LIBDIR;
		657	our $RESNAME;
		658	our $RESCLASS;
		659	our $RXVTNAME;
		660
		661	our $NOCHAR = chr 0xffff;
		662
294	=head2 Variables in the C<urxvt> Package	663	=head2 Variables in the C<urxvt> Package
295		664
296	=over 4	665	=over 4
		666
		667	=item $urxvt::LIBDIR
		668
		669	The rxvt-unicode library directory, where, among other things, the perl
		670	modules and scripts are stored.
		671
		672	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		673
		674	The resource class and name rxvt-unicode uses to look up X resources.
		675
		676	=item $urxvt::RXVTNAME
		677
		678	The basename of the installed binaries, usually C<urxvt>.
297		679
298	=item $urxvt::TERM	680	=item $urxvt::TERM
299		681
300	The current terminal. This variable stores the current C<urxvt::term>	682	The current terminal. This variable stores the current C<urxvt::term>
301	object, whenever a callback/hook is executing.	683	object, whenever a callback/hook is executing.
302		684
		685	=item @urxvt::TERM_INIT
		686
		687	All coderefs in this array will be called as methods of the next newly
		688	created C<urxvt::term> object (during the C<on_init> phase). The array
		689	gets cleared before the codereferences that were in it are being executed,
		690	so coderefs can push themselves onto it again if they so desire.
		691
		692	This complements to the perl-eval commandline option, but gets executed
		693	first.
		694
		695	=item @urxvt::TERM_EXT
		696
		697	Works similar to C<@TERM_INIT>, but contains perl package/class names, which
		698	get registered as normal extensions after calling the hooks in C<@TERM_INIT>
		699	but before other extensions. Gets cleared just like C<@TERM_INIT>.
		700
303	=back	701	=back
304		702
305	=head2 Functions in the C<urxvt> Package	703	=head2 Functions in the C<urxvt> Package
306		704
307	=over 4	705	=over 4
308
309	=item $term = new urxvt [arg...]
310
311	Creates a new terminal, very similar as if you had started it with
312	C<system $binfile, arg...>. Croaks (and probably outputs an error message)
313	if the new instance couldn't be created. Returns C<undef> if the new
314	instance didn't initialise perl, and the terminal object otherwise. The
315	C<init> and C<start> hooks will be called during the call.
316		706
317	=item urxvt::fatal $errormessage	707	=item urxvt::fatal $errormessage
318		708
319	Fatally aborts execution with the given error message. Avoid at all	709	Fatally aborts execution with the given error message. Avoid at all
320	costs! The only time this is acceptable is when the terminal process	710	costs! The only time this is acceptable is when the terminal process
…		…
327	that calls this function.	717	that calls this function.
328		718
329	Using this function has the advantage that its output ends up in the	719	Using this function has the advantage that its output ends up in the
330	correct place, e.g. on stderr of the connecting urxvtc client.	720	correct place, e.g. on stderr of the connecting urxvtc client.
331		721
		722	Messages have a size limit of 1023 bytes currently.
		723
		724	=item @terms = urxvt::termlist
		725
		726	Returns all urxvt::term objects that exist in this process, regardless of
		727	wether they are started, being destroyed etc., so be careful. Only term
		728	objects that have perl extensions attached will be returned (because there
		729	is no urxvt::term objet associated with others).
		730
332	=item $time = urxvt::NOW	731	=item $time = urxvt::NOW
333		732
334	Returns the "current time" (as per the event loop).	733	Returns the "current time" (as per the event loop).
335		734
336	=item urxvt::CurrentTime	735	=item urxvt::CurrentTime
337		736
338	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,	737	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
339	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,	738	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
340	Button4Mask, Button5Mask, AnyModifier	739	Button4Mask, Button5Mask, AnyModifier
341		740
		741	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		742	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		743	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		744	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		745	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		746	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		747	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		748
		749	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		750	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		751	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		752	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		753	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		754	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		755	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		756
342	Various constants for use in X events.	757	Various constants for use in X calls and event processing.
343		758
344	=back	759	=back
345		760
346	=head2 RENDITION	761	=head2 RENDITION
347		762
…		…
374		789
375	=item $background = urxvt::GET_BASEBG $rend	790	=item $background = urxvt::GET_BASEBG $rend
376		791
377	Return the foreground/background colour index, respectively.	792	Return the foreground/background colour index, respectively.
378		793
379	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	794	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
380		795
381	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	796	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
		797
		798	=item $rend = urxvt::SET_COLOR $rend, $new_fg, $new_bg
382		799
383	Replace the foreground/background colour in the rendition mask with the	800	Replace the foreground/background colour in the rendition mask with the
384	specified one.	801	specified one.
385		802
386	=item $value = urxvt::GET_CUSTOM ($rend)	803	=item $value = urxvt::GET_CUSTOM $rend
387		804
388	Return the "custom" value: Every rendition has 5 bits for use by	805	Return the "custom" value: Every rendition has 5 bits for use by
389	extensions. They can be set and changed as you like and are initially	806	extensions. They can be set and changed as you like and are initially
390	zero.	807	zero.
391		808
392	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	809	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
393		810
394	Change the custom value.	811	Change the custom value.
395		812
396	=back	813	=back
397		814
398	=cut	815	=cut
399		816
400	package urxvt;
401
402	use utf8;
403	use strict;
404	use Scalar::Util ();
405	use List::Util ();
406
407	our $TERM;
408	our @HOOKNAME;
409	our %OPTION;
410	our $LIBDIR;
411
412	BEGIN {	817	BEGIN {
413	urxvt->bootstrap;
414
415	# overwrite perl's warn	818	# overwrite perl's warn
416	*CORE::GLOBAL::warn = sub {	819	*CORE::GLOBAL::warn = sub {
417	my $msg = join "", @_;	820	my $msg = join "", @_;
418	$msg .= "\n"	821	$msg .= "\n"
419	unless $msg =~ /\n$/;	822	unless $msg =~ /\n$/;
420	urxvt::warn ($msg);	823	urxvt::warn ($msg);
421	};	824	};
422	}	825	}
423		826
424	my @hook_count;	827	no warnings 'utf8';
		828
425	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	829	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
426		830
427	sub verbose {	831	sub verbose {
428	my ($level, $msg) = @_;	832	my ($level, $msg) = @_;
429	warn "$msg\n" if $level <= $verbosity;	833	warn "$msg\n" if $level <= $verbosity;
430	}	834	}
431		835
432	# find on_xxx subs in the package and register them
433	# as hooks
434	sub register_package($) {
435	my ($pkg) = @_;
436
437	for my $htype (0.. $#HOOKNAME) {
438	my $name = $HOOKNAME[$htype];
439
440	my $ref = $pkg->can ("on_" . lc $name)
441	or next;
442
443	$TERM->{_hook}[$htype]{$pkg} = $ref;
444	$hook_count[$htype]++
445	or set_should_invoke $htype, 1;
446	}
447	}
448
449	my $extension_pkg = "extension0000";
450	my %extension_pkg;	836	my %extension_pkg;
451		837
452	# load a single script into its own package, once only	838	# load a single script into its own package, once only
453	sub extension_package($) {	839	sub extension_package($) {
454	my ($path) = @_;	840	my ($path) = @_;
455		841
456	$extension_pkg{$path} ||= do {	842	$extension_pkg{$path} ||= do {
457	my $pkg = "urxvt::" . ($extension_pkg++);	843	$path =~ /([^\/\\]+)$/;
		844	my $pkg = $1;
		845	$pkg =~ s/[^[:word:]]/_/g;
		846	$pkg = "urxvt::ext::$pkg";
458		847
459	verbose 3, "loading extension '$path' into package '$pkg'";	848	verbose 3, "loading extension '$path' into package '$pkg'";
460		849
461	open my $fh, "<:raw", $path	850	open my $fh, "<:raw", $path
462	or die "$path: $!";	851	or die "$path: $!";
463		852
464	my $source = "package $pkg; use strict; use utf8;\n"	853	my $source =
465	. "use base urxvt::term::proxy::;\n"	854	"package $pkg; use strict; use utf8; no warnings 'utf8';\n"
466	. "#line 1 \"$path\"\n{\n"	855	. "#line 1 \"$path\"\n{\n"
467	. (do { local $/; <$fh> })	856	. (do { local $/; <$fh> })
468	. "\n};\n1";	857	. "\n};\n1";
469		858
		859	eval $source
470	eval $source or die "$path: $@";	860	or die "$path: $@";
471		861
472	$pkg	862	$pkg
473	}	863	}
474	}	864	}
475		865
…		…
481	my $htype = shift;	871	my $htype = shift;
482		872
483	if ($htype == 0) { # INIT	873	if ($htype == 0) { # INIT
484	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	874	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
485		875
		876	my %ext_arg;
		877
		878	{
		879	my @init = @TERM_INIT;
		880	@TERM_INIT = ();
		881	$_->($TERM) for @init;
		882	my @pkg = @TERM_EXT;
		883	@TERM_EXT = ();
		884	$TERM->register_package ($_) for @pkg;
		885	}
		886
486	my @ext = (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2);	887	for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
487
488	while (@ext) {
489	my $ext = shift @ext;
490	if ($ext eq "default") {	888	if ($_ eq "default") {
491	unshift @ext, qw(selection);	889	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback readline);
		890	} elsif (/^-(.*)$/) {
		891	delete $ext_arg{$1};
		892	} elsif (/^([^<]+)<(.*)>$/) {
		893	push @{ $ext_arg{$1} }, $2;
492	} else {	894	} else {
493	my @files = grep -f $_, map "$_/$ext", @dirs;	895	$ext_arg{$_} ||= [];
494
495	if (@files) {
496	register_package extension_package $files[0];
497	} else {
498	warn "perl extension '$ext' not found in perl library search path\n";
499	}
500	}	896	}
501	}	897	}
		898
		899	for my $ext (sort keys %ext_arg) {
		900	my @files = grep -f $_, map "$_/$ext", @dirs;
		901
		902	if (@files) {
		903	$TERM->register_package (extension_package $files[0], $ext_arg{$ext});
		904	} else {
		905	warn "perl extension '$ext' not found in perl library search path\n";
		906	}
		907	}
		908
		909	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		910	warn $@ if $@;
502	}	911	}
503		912
504	$retval = undef;	913	$retval = undef;
505		914
506	if (my $cb = $TERM->{_hook}[$htype]) {	915	if (my $cb = $TERM->{_hook}[$htype]) {
507	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"	916	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
508	if $verbosity >= 10;	917	if $verbosity >= 10;
509		918
510	keys %$cb;	919	for my $pkg (keys %$cb) {
		920	my $retval_ = eval { $cb->{$pkg}->($TERM->{_pkg}{$pkg}, @_) };
		921	$retval ||= $retval_;
511		922
512	while (my ($pkg, $cb) = each %$cb) {	923	if ($@) {
513	eval {	924	$TERM->ungrab; # better to lose the grab than the session
514	$retval = $cb->(	925	warn $@;
515	$TERM->{_pkg}{$pkg} ||= do {
516	my $proxy = bless { }, $pkg;
517	Scalar::Util::weaken ($proxy->{term} = $TERM);
518	$proxy
519	},
520	@_,
521	) and last;
522	};
523	warn $@ if $@;#d#
524	}
525	}
526
527	if ($htype == 1) { # DESTROY
528	# remove hooks if unused
529	if (my $hook = $TERM->{_hook}) {
530	for my $htype (0..$#$hook) {
531	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
532	or set_should_invoke $htype, 0;
533	}	926	}
534	}	927	}
535		928
		929	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		930	if $verbosity >= 11;
		931	}
		932
		933	if ($htype == 1) { # DESTROY
536	# clear package objects	934	# clear package objects
537	%$_ = () for values %{ $TERM->{_pkg} };	935	%$_ = () for values %{ $TERM->{_pkg} };
538		936
539	# clear package	937	# clear package
540	%$TERM = ();	938	%$TERM = ();
541	}	939	}
542		940
543	$retval	941	$retval
544	}	942	}
545		943
546	sub urxvt::term::proxy::AUTOLOAD {	944	sub SET_COLOR($$$) {
547	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	945	SET_BGCOLOR (SET_FGCOLOR ($_[0], $_[1]), $_[2])
		946	}
		947
		948	# urxvt::term::extension
		949
		950	package urxvt::term::extension;
		951
		952	sub enable {
		953	my ($self, %hook) = @_;
		954	my $pkg = $self->{_pkg};
		955
		956	while (my ($name, $cb) = each %hook) {
		957	my $htype = $HOOKTYPE{uc $name};
		958	defined $htype
		959	or Carp::croak "unsupported hook type '$name'";
		960
		961	$self->set_should_invoke ($htype, +1)
		962	unless exists $self->{term}{_hook}[$htype]{$pkg};
		963
		964	$self->{term}{_hook}[$htype]{$pkg} = $cb;
		965	}
		966	}
		967
		968	sub disable {
		969	my ($self, @hook) = @_;
		970	my $pkg = $self->{_pkg};
		971
		972	for my $name (@hook) {
		973	my $htype = $HOOKTYPE{uc $name};
		974	defined $htype
		975	or Carp::croak "unsupported hook type '$name'";
		976
		977	$self->set_should_invoke ($htype, -1)
		978	if delete $self->{term}{_hook}[$htype]{$pkg};
		979	}
		980	}
		981
		982	our $AUTOLOAD;
		983
		984	sub AUTOLOAD {
		985	$AUTOLOAD =~ /:([^:]+)$/
548	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	986	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
549		987
550	eval qq{	988	eval qq{
551	sub $urxvt::term::proxy::AUTOLOAD {	989	sub $AUTOLOAD {
552	my \$proxy = shift;	990	my \$proxy = shift;
553	\$proxy->{term}->$1 (\@_)	991	\$proxy->{term}->$1 (\@_)
554	}	992	}
555	1	993	1
556	} or die "FATAL: unable to compile method forwarder: $@";	994	} or die "FATAL: unable to compile method forwarder: $@";
557		995
558	goto &$urxvt::term::proxy::AUTOLOAD;	996	goto &$AUTOLOAD;
559	}	997	}
		998
		999	sub DESTROY {
		1000	# nop
		1001	}
		1002
		1003	# urxvt::destroy_hook
560		1004
561	sub urxvt::destroy_hook::DESTROY {	1005	sub urxvt::destroy_hook::DESTROY {
562	${$_[0]}->();	1006	${$_[0]}->();
563	}	1007	}
564		1008
565	sub urxvt::destroy_hook(&) {	1009	sub urxvt::destroy_hook(&) {
566	bless \shift, urxvt::destroy_hook::	1010	bless \shift, urxvt::destroy_hook::
567	}	1011	}
568		1012
		1013	package urxvt::anyevent;
		1014
		1015	=head2 The C<urxvt::anyevent> Class
		1016
		1017	The sole purpose of this class is to deliver an interface to the
		1018	C<AnyEvent> module - any module using it will work inside urxvt without
		1019	further programming. The only exception is that you cannot wait on
		1020	condition variables, but non-blocking condvar use is ok. What this means
		1021	is that you cannot use blocking APIs, but the non-blocking variant should
		1022	work.
		1023
		1024	=cut
		1025
		1026	our $VERSION = 1;
		1027
		1028	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		1029	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		1030
		1031	sub timer {
		1032	my ($class, %arg) = @_;
		1033
		1034	my $cb = $arg{cb};
		1035
		1036	urxvt::timer
		1037	->new
		1038	->start (urxvt::NOW + $arg{after})
		1039	->cb (sub {
		1040	$_[0]->stop; # need to cancel manually
		1041	$cb->();
		1042	})
		1043	}
		1044
		1045	sub io {
		1046	my ($class, %arg) = @_;
		1047
		1048	my $cb = $arg{cb};
		1049
		1050	bless [$arg{fh}, urxvt::iow
		1051	->new
		1052	->fd (fileno $arg{fh})
		1053	->events (($arg{poll} =~ /r/ ? 1 : 0)
		1054	| ($arg{poll} =~ /w/ ? 2 : 0))
		1055	->start
		1056	->cb (sub {
		1057	$cb->(($_[1] & 1 ? 'r' : '')
		1058	. ($_[1] & 2 ? 'w' : ''));
		1059	})],
		1060	urxvt::anyevent::
		1061	}
		1062
		1063	sub DESTROY {
		1064	$_[0][1]->stop;
		1065	}
		1066
		1067	sub condvar {
		1068	bless \my $flag, urxvt::anyevent::condvar::
		1069	}
		1070
		1071	sub urxvt::anyevent::condvar::broadcast {
		1072	${$_[0]}++;
		1073	}
		1074
		1075	sub urxvt::anyevent::condvar::wait {
		1076	unless (${$_[0]}) {
		1077	Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
		1078	}
		1079	}
		1080
		1081	package urxvt::term;
		1082
569	=head2 The C<urxvt::term> Class	1083	=head2 The C<urxvt::term> Class
570		1084
571	=over 4	1085	=over 4
572		1086
		1087	=cut
		1088
		1089	# find on_xxx subs in the package and register them
		1090	# as hooks
		1091	sub register_package {
		1092	my ($self, $pkg, $argv) = @_;
		1093
		1094	no strict 'refs';
		1095
		1096	urxvt::verbose 6, "register package $pkg to $self";
		1097
		1098	@{"$pkg\::ISA"} = urxvt::term::extension::;
		1099
		1100	my $proxy = bless {
		1101	_pkg => $pkg,
		1102	argv => $argv,
		1103	}, $pkg;
		1104	Scalar::Util::weaken ($proxy->{term} = $self);
		1105
		1106	$self->{_pkg}{$pkg} = $proxy;
		1107
		1108	for my $name (@HOOKNAME) {
		1109	if (my $ref = $pkg->can ("on_" . lc $name)) {
		1110	$proxy->enable ($name => $ref);
		1111	}
		1112	}
		1113	}
		1114
		1115	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		1116
		1117	Creates a new terminal, very similar as if you had started it with system
		1118	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		1119	hash which defines the environment of the new terminal.
		1120
		1121	Croaks (and probably outputs an error message) if the new instance
		1122	couldn't be created. Returns C<undef> if the new instance didn't
		1123	initialise perl, and the terminal object otherwise. The C<init> and
		1124	C<start> hooks will be called before this call returns, and are free to
		1125	refer to global data (which is race free).
		1126
		1127	=cut
		1128
		1129	sub new {
		1130	my ($class, $env, @args) = @_;
		1131
		1132	$env or Carp::croak "environment hash missing in call to urxvt::term->new";
		1133	@args or Carp::croak "name argument missing in call to urxvt::term->new";
		1134
		1135	_new ([ map "$_=$env->{$_}", keys %$env ], \@args);
		1136	}
		1137
573	=item $term->destroy	1138	=item $term->destroy
574		1139
575	Destroy the terminal object (close the window, free resources etc.).	1140	Destroy the terminal object (close the window, free resources
		1141	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		1142	watchers (timers, io watchers) are still active.
		1143
		1144	=item $term->exec_async ($cmd[, @args])
		1145
		1146	Works like the combination of the C<fork>/C<exec> builtins, which executes
		1147	("starts") programs in the background. This function takes care of setting
		1148	the user environment before exec'ing the command (e.g. C<PATH>) and should
		1149	be preferred over explicit calls to C<exec> or C<system>.
		1150
		1151	Returns the pid of the subprocess or C<undef> on error.
		1152
		1153	=cut
		1154
		1155	sub exec_async {
		1156	my $self = shift;
		1157
		1158	my $pid = fork;
		1159
		1160	return $pid
		1161	if !defined $pid or $pid;
		1162
		1163	%ENV = %{ $self->env };
		1164
		1165	exec @_;
		1166	urxvt::_exit 255;
		1167	}
576		1168
577	=item $isset = $term->option ($optval[, $set])	1169	=item $isset = $term->option ($optval[, $set])
578		1170
579	Returns true if the option specified by C<$optval> is enabled, and	1171	Returns true if the option specified by C<$optval> is enabled, and
580	optionally change it. All option values are stored by name in the hash	1172	optionally change it. All option values are stored by name in the hash
…		…
583	Here is a a likely non-exhaustive list of option names, please see the	1175	Here is a a likely non-exhaustive list of option names, please see the
584	source file F</src/optinc.h> to see the actual list:	1176	source file F</src/optinc.h> to see the actual list:
585		1177
586	borderLess console cursorBlink cursorUnderline hold iconic insecure	1178	borderLess console cursorBlink cursorUnderline hold iconic insecure
587	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage	1179	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
588	pastableTabs pointerBlank reverseVideo scrollBar scrollBar_floating	1180	override-redirect pastableTabs pointerBlank reverseVideo scrollBar
589	scrollBar_right scrollTtyKeypress scrollTtyOutput scrollWithBuffer	1181	scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
590	secondaryScreen secondaryScroll skipBuiltinGlyphs transparent	1182	scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
591	tripleclickwords utmpInhibit visualBell	1183	transparent tripleclickwords utmpInhibit visualBell
592		1184
593	=item $value = $term->resource ($name[, $newval])	1185	=item $value = $term->resource ($name[, $newval])
594		1186
595	Returns the current resource value associated with a given name and	1187	Returns the current resource value associated with a given name and
596	optionally sets a new value. Setting values is most useful in the C<init>	1188	optionally sets a new value. Setting values is most useful in the C<init>
…		…
613		1205
614	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1206	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
615	borderLess color cursorBlink cursorUnderline cutchars delete_key	1207	borderLess color cursorBlink cursorUnderline cutchars delete_key
616	display_name embed ext_bwidth fade font geometry hold iconName	1208	display_name embed ext_bwidth fade font geometry hold iconName
617	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1209	imFont imLocale inputMethod insecure int_bwidth intensityStyles
618	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1210	italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
619	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1211	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
620	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1212	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
621	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1213	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
622	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1214	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
623	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1215	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
624	shade term_name title transparent transparent_all tripleclickwords	1216	secondaryScreen secondaryScroll selectstyle shade term_name title
625	utmpInhibit visualBell	1217	transient_for transparent transparent_all tripleclickwords utmpInhibit
		1218	visualBell
626		1219
627	=cut	1220	=cut
628		1221
629	sub urxvt::term::resource($$;$) {	1222	sub resource($$;$) {
630	my ($self, $name) = (shift, shift);	1223	my ($self, $name) = (shift, shift);
631	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1224	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
632	&urxvt::term::_resource	1225	&urxvt::term::_resource
633	}	1226	}
634		1227
		1228	=item $value = $term->x_resource ($pattern)
		1229
		1230	Returns the X-Resource for the given pattern, excluding the program or
		1231	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1232	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1233	resource with that pattern exists.
		1234
		1235	This method should only be called during the C<on_start> hook, as there is
		1236	only one resource database per display, and later invocations might return
		1237	the wrong resources.
		1238
		1239	=item $success = $term->parse_keysym ($keysym_spec, $command_string)
		1240
		1241	Adds a keymap translation exactly as specified via a resource. See the
		1242	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
		1243
635	=item $rend = $term->rstyle ([$new_rstyle])	1244	=item $rend = $term->rstyle ([$new_rstyle])
636		1245
637	Return and optionally change the current rendition. Text that is output by	1246	Return and optionally change the current rendition. Text that is output by
638	the terminal application will use this style.	1247	the terminal application will use this style.
639		1248
…		…
649	=item ($row, $col) = $term->selection_end ([$row, $col])	1258	=item ($row, $col) = $term->selection_end ([$row, $col])
650		1259
651	Return the current values of the selection mark, begin or end positions,	1260	Return the current values of the selection mark, begin or end positions,
652	and optionally set them to new values.	1261	and optionally set them to new values.
653		1262
		1263	=item $term->selection_make ($eventtime[, $rectangular])
		1264
		1265	Tries to make a selection as set by C<selection_beg> and
		1266	C<selection_end>. If C<$rectangular> is true (default: false), a
		1267	rectangular selection will be made. This is the prefered function to make
		1268	a selection.
		1269
654	=item $success = $term->selection_grab ($eventtime)	1270	=item $success = $term->selection_grab ($eventtime)
655		1271
656	Try to request the primary selection from the server (for example, as set	1272	Try to request the primary selection text from the server (for example, as
657	by the next method).	1273	set by the next method). No visual feedback will be given. This function
		1274	is mostly useful from within C<on_sel_grab> hooks.
658		1275
659	=item $oldtext = $term->selection ([$newtext])	1276	=item $oldtext = $term->selection ([$newtext])
660		1277
661	Return the current selection text and optionally replace it by C<$newtext>.	1278	Return the current selection text and optionally replace it by C<$newtext>.
662		1279
663	#=item $term->overlay ($x, $y, $text)	1280	=item $term->overlay_simple ($x, $y, $text)
664	#	1281
665	#Create a simple multi-line overlay box. See the next method for details.	1282	Create a simple multi-line overlay box. See the next method for details.
666	#	1283
667	#=cut	1284	=cut
668	#	1285
669	#sub urxvt::term::scr_overlay {	1286	sub overlay_simple {
670	# my ($self, $x, $y, $text) = @_;	1287	my ($self, $x, $y, $text) = @_;
671	#	1288
672	# my @lines = split /\n/, $text;	1289	my @lines = split /\n/, $text;
673	#	1290
674	# my $w = 0;	1291	my $w = List::Util::max map $self->strwidth ($_), @lines;
675	# for (map $self->strwidth ($_), @lines) {	1292
676	# $w = $_ if $w < $_;
677	# }
678	#
679	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);	1293	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
680	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1294	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
681	#}	1295
		1296	$overlay
		1297	}
682		1298
683	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1299	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
684		1300
685	Create a new (empty) overlay at the given position with the given	1301	Create a new (empty) overlay at the given position with the given
686	width/height. C<$rstyle> defines the initial rendition style	1302	width/height. C<$rstyle> defines the initial rendition style
…		…
721	C<$event> I<must> be the event causing the menu to pop up (a button event,	1337	C<$event> I<must> be the event causing the menu to pop up (a button event,
722	currently).	1338	currently).
723		1339
724	=cut	1340	=cut
725		1341
726	sub urxvt::term::popup {	1342	sub popup {
727	my ($self, $event) = @_;	1343	my ($self, $event) = @_;
728		1344
729	$self->grab ($event->{time}, 1)	1345	$self->grab ($event->{time}, 1)
730	or return;	1346	or return;
731		1347
…		…
753		1369
754	=item $string = $term->locale_decode ($octets)	1370	=item $string = $term->locale_decode ($octets)
755		1371
756	Convert the given locale-encoded octets into a perl string.	1372	Convert the given locale-encoded octets into a perl string.
757		1373
		1374	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1375
		1376	XORs the rendition values in the given span with the provided value
		1377	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1378	refresh hooks to provide effects similar to the selection.
		1379
		1380	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1381
		1382	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1383	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1384	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1385	it instead. Both styles I<MUST NOT> contain font styles.
		1386
		1387	=item $term->scr_bell
		1388
		1389	Ring the bell!
		1390
758	=item $term->scr_add_lines ($string)	1391	=item $term->scr_add_lines ($string)
759		1392
760	Write the given text string to the screen, as if output by the application	1393	Write the given text string to the screen, as if output by the application
761	running inside the terminal. It may not contain command sequences (escape	1394	running inside the terminal. It may not contain command sequences (escape
762	codes), but is free to use line feeds, carriage returns and tabs. The	1395	codes), but is free to use line feeds, carriage returns and tabs. The
…		…
764		1397
765	Normally its not a good idea to use this function, as programs might be	1398	Normally its not a good idea to use this function, as programs might be
766	confused by changes in cursor position or scrolling. Its useful inside a	1399	confused by changes in cursor position or scrolling. Its useful inside a
767	C<on_add_lines> hook, though.	1400	C<on_add_lines> hook, though.
768		1401
		1402	=item $term->scr_change_screen ($screen)
		1403
		1404	Switch to given screen - 0 primary, 1 secondary.
		1405
769	=item $term->cmd_parse ($octets)	1406	=item $term->cmd_parse ($octets)
770		1407
771	Similar to C<scr_add_lines>, but the argument must be in the	1408	Similar to C<scr_add_lines>, but the argument must be in the
772	locale-specific encoding of the terminal and can contain command sequences	1409	locale-specific encoding of the terminal and can contain command sequences
773	(escape codes) that will be interpreted.	1410	(escape codes) that will be interpreted.
…		…
776		1413
777	Write the octets given in C<$data> to the tty (i.e. as program input). To	1414	Write the octets given in C<$data> to the tty (i.e. as program input). To
778	pass characters instead of octets, you should convert your strings first	1415	pass characters instead of octets, you should convert your strings first
779	to the locale-specific encoding using C<< $term->locale_encode >>.	1416	to the locale-specific encoding using C<< $term->locale_encode >>.
780		1417
		1418	=item $old_events = $term->pty_ev_events ([$new_events])
		1419
		1420	Replaces the event mask of the pty watcher by the given event mask. Can
		1421	be used to suppress input and output handling to the pty/tty. See the
		1422	description of C<< urxvt::timer->events >>. Make sure to always restore
		1423	the previous value.
		1424
		1425	=item $fd = $term->pty_fd
		1426
		1427	Returns the master file descriptor for the pty in use, or C<-1> if no pty
		1428	is used.
		1429
781	=item $windowid = $term->parent	1430	=item $windowid = $term->parent
782		1431
783	Return the window id of the toplevel window.	1432	Return the window id of the toplevel window.
784		1433
785	=item $windowid = $term->vt	1434	=item $windowid = $term->vt
786		1435
787	Return the window id of the terminal window.	1436	Return the window id of the terminal window.
788		1437
		1438	=item $term->vt_emask_add ($x_event_mask)
		1439
		1440	Adds the specified events to the vt event mask. Useful e.g. when you want
		1441	to receive pointer events all the times:
		1442
		1443	$term->vt_emask_add (urxvt::PointerMotionMask);
		1444
		1445	=item $term->focus_in
		1446
		1447	=item $term->focus_out
		1448
		1449	=item $term->key_press ($state, $keycode[, $time])
		1450
		1451	=item $term->key_release ($state, $keycode[, $time])
		1452
		1453	Deliver various fake events to to terminal.
		1454
789	=item $window_width = $term->width	1455	=item $window_width = $term->width
790		1456
791	=item $window_height = $term->height	1457	=item $window_height = $term->height
792		1458
793	=item $font_width = $term->fwidth	1459	=item $font_width = $term->fwidth
…		…
806		1472
807	=item $max_scrollback = $term->saveLines	1473	=item $max_scrollback = $term->saveLines
808		1474
809	=item $nrow_plus_saveLines = $term->total_rows	1475	=item $nrow_plus_saveLines = $term->total_rows
810		1476
811	=item $lines_in_scrollback = $term->nsaved	1477	=item $topmost_scrollback_row = $term->top_row
812		1478
813	Return various integers describing terminal characteristics.	1479	Return various integers describing terminal characteristics.
		1480
		1481	=item $x_display = $term->display_id
		1482
		1483	Return the DISPLAY used by rxvt-unicode.
		1484
		1485	=item $lc_ctype = $term->locale
		1486
		1487	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1488
		1489	=item $env = $term->env
		1490
		1491	Returns a copy of the environment in effect for the terminal as a hashref
		1492	similar to C<\%ENV>.
		1493
		1494	=item @envv = $term->envv
		1495
		1496	Returns the environment as array of strings of the form C<VAR=VALUE>.
		1497
		1498	=item @argv = $term->argv
		1499
		1500	Return the argument vector as this terminal, similar to @ARGV, but
		1501	includes the program name as first element.
		1502
		1503	=cut
		1504
		1505	sub env {
		1506	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), $_[0]->envv }
		1507	}
814		1508
815	=item $modifiermask = $term->ModLevel3Mask	1509	=item $modifiermask = $term->ModLevel3Mask
816		1510
817	=item $modifiermask = $term->ModMetaMask	1511	=item $modifiermask = $term->ModMetaMask
818		1512
819	=item $modifiermask = $term->ModNumLockMask	1513	=item $modifiermask = $term->ModNumLockMask
820		1514
821	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often	1515	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
822	AltGr), the meta key (often Alt) and the num lock key, if applicable.	1516	AltGr), the meta key (often Alt) and the num lock key, if applicable.
823		1517
		1518	=item $screen = $term->current_screen
		1519
		1520	Returns the currently displayed screen (0 primary, 1 secondary).
		1521
		1522	=item $cursor_is_hidden = $term->hidden_cursor
		1523
		1524	Returns wether the cursor is currently hidden or not.
		1525
824	=item $view_start = $term->view_start ([$newvalue])	1526	=item $view_start = $term->view_start ([$newvalue])
825		1527
826	Returns the negative row number of the topmost line. Minimum value is	1528	Returns the row number of the topmost displayed line. Maximum value is
827	C<0>, which displays the normal terminal contents. Larger values scroll	1529	C<0>, which displays the normal terminal contents. Lower values scroll
828	this many lines into the scrollback buffer.	1530	this many lines into the scrollback buffer.
829		1531
830	=item $term->want_refresh	1532	=item $term->want_refresh
831		1533
832	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1534	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
847	line, starting at column C<$start_col> (default C<0>), which is useful	1549	line, starting at column C<$start_col> (default C<0>), which is useful
848	to replace only parts of a line. The font index in the rendition will	1550	to replace only parts of a line. The font index in the rendition will
849	automatically be updated.	1551	automatically be updated.
850		1552
851	C<$text> is in a special encoding: tabs and wide characters that use more	1553	C<$text> is in a special encoding: tabs and wide characters that use more
852	than one cell when displayed are padded with urxvt::NOCHAR characters	1554	than one cell when displayed are padded with C<$urxvt::NOCHAR> (chr 65535)
853	(C<chr 65535>). Characters with combining characters and other characters	1555	characters. Characters with combining characters and other characters that
854	that do not fit into the normal tetx encoding will be replaced with	1556	do not fit into the normal tetx encoding will be replaced with characters
855	characters in the private use area.	1557	in the private use area.
856		1558
857	You have to obey this encoding when changing text. The advantage is	1559	You have to obey this encoding when changing text. The advantage is
858	that C<substr> and similar functions work on screen cells and not on	1560	that C<substr> and similar functions work on screen cells and not on
859	characters.	1561	characters.
860		1562
…		…
911	Return the row number of the first/last row of the line, respectively.	1613	Return the row number of the first/last row of the line, respectively.
912		1614
913	=item $offset = $line->offset_of ($row, $col)	1615	=item $offset = $line->offset_of ($row, $col)
914		1616
915	Returns the character offset of the given row|col pair within the logical	1617	Returns the character offset of the given row|col pair within the logical
916	line.	1618	line. Works for rows outside the line, too, and returns corresponding
		1619	offsets outside the string.
917		1620
918	=item ($row, $col) = $line->coord_of ($offset)	1621	=item ($row, $col) = $line->coord_of ($offset)
919		1622
920	Translates a string offset into terminal coordinates again.	1623	Translates a string offset into terminal coordinates again.
921		1624
922	=back	1625	=back
923		1626
924	=cut	1627	=cut
925		1628
926	sub urxvt::term::line {	1629	sub line {
927	my ($self, $row) = @_;	1630	my ($self, $row) = @_;
928		1631
929	my $maxrow = $self->nrow - 1;	1632	my $maxrow = $self->nrow - 1;
930		1633
931	my ($beg, $end) = ($row, $row);	1634	my ($beg, $end) = ($row, $row);
…		…
995	$offset / $self->{ncol} + $self->{beg},	1698	$offset / $self->{ncol} + $self->{beg},
996	$offset % $self->{ncol}	1699	$offset % $self->{ncol}
997	)	1700	)
998	}	1701	}
999		1702
1000	=item ($row, $col) = $line->coord_of ($offset)
1001	=item $text = $term->special_encode $string	1703	=item $text = $term->special_encode $string
1002		1704
1003	Converts a perl string into the special encoding used by rxvt-unicode,	1705	Converts a perl string into the special encoding used by rxvt-unicode,
1004	where one character corresponds to one screen cell. See	1706	where one character corresponds to one screen cell. See
1005	C<< $term->ROW_t >> for details.	1707	C<< $term->ROW_t >> for details.
…		…
1007	=item $string = $term->special_decode $text	1709	=item $string = $term->special_decode $text
1008		1710
1009	Converts rxvt-unicodes text reprsentation into a perl string. See	1711	Converts rxvt-unicodes text reprsentation into a perl string. See
1010	C<< $term->ROW_t >> for details.	1712	C<< $term->ROW_t >> for details.
1011		1713
		1714	=item $success = $term->grab_button ($button, $modifiermask[, $window = $term->vt])
		1715
		1716	=item $term->ungrab_button ($button, $modifiermask[, $window = $term->vt])
		1717
		1718	Register/unregister a synchronous button grab. See the XGrabButton
		1719	manpage.
		1720
		1721	=item $success = $term->grab ($eventtime[, $sync])
		1722
		1723	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1724	synchronous (C<$sync> is true). Also remembers the grab timestampe.
		1725
		1726	=item $term->allow_events_async
		1727
		1728	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1729
		1730	=item $term->allow_events_sync
		1731
		1732	Calls XAllowEvents with SyncBoth for the most recent grab.
		1733
		1734	=item $term->allow_events_replay
		1735
		1736	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1737	recent grab.
		1738
		1739	=item $term->ungrab
		1740
		1741	Calls XUngrab for the most recent grab. Is called automatically on
		1742	evaluation errors, as it is better to lose the grab in the error case as
		1743	the session.
		1744
		1745	=item $atom = $term->XInternAtom ($atom_name[, $only_if_exists])
		1746
		1747	=item $atom_name = $term->XGetAtomName ($atom)
		1748
		1749	=item @atoms = $term->XListProperties ($window)
		1750
		1751	=item ($type,$format,$octets) = $term->XGetWindowProperty ($window, $property)
		1752
		1753	=item $term->XChangeWindowProperty ($window, $property, $type, $format, $octets)
		1754
		1755	=item $term->XDeleteProperty ($window, $property)
		1756
		1757	=item $window = $term->DefaultRootWindow
		1758
		1759	=item $term->XReparentWindow ($window, $parent, [$x, $y])
		1760
		1761	=item $term->XMapWindow ($window)
		1762
		1763	=item $term->XUnmapWindow ($window)
		1764
		1765	=item $term->XMoveResizeWindow ($window, $x, $y, $width, $height)
		1766
		1767	=item ($x, $y, $child_window) = $term->XTranslateCoordinates ($src, $dst, $x, $y)
		1768
		1769	=item $term->XChangeInput ($window, $add_events[, $del_events])
		1770
		1771	Various X or X-related functions. The C<$term> object only serves as
		1772	the source of the display, otherwise those functions map more-or-less
		1773	directory onto the X functions of the same name.
		1774
1012	=back	1775	=back
1013		1776
		1777	=cut
		1778
		1779	package urxvt::popup;
		1780
1014	=head2 The C<urxvt::popup> Class	1781	=head2 The C<urxvt::popup> Class
1015		1782
1016	=over 4	1783	=over 4
1017		1784
1018	=cut	1785	=cut
1019
1020	package urxvt::popup;
1021		1786
1022	sub add_item {	1787	sub add_item {
1023	my ($self, $item) = @_;	1788	my ($self, $item) = @_;
1024		1789
		1790	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1791	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1792	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1793
		1794	$item->{render} ||= sub { $_[0]{text} };
		1795
1025	push @{ $self->{item} }, $item;	1796	push @{ $self->{item} }, $item;
1026	}	1797	}
		1798
		1799	=item $popup->add_title ($title)
		1800
		1801	Adds a non-clickable title to the popup.
		1802
		1803	=cut
		1804
		1805	sub add_title {
		1806	my ($self, $title) = @_;
		1807
		1808	$self->add_item ({
		1809	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1810	text => $title,
		1811	activate => sub { },
		1812	});
		1813	}
		1814
		1815	=item $popup->add_separator ([$sepchr])
		1816
		1817	Creates a separator, optionally using the character given as C<$sepchr>.
		1818
		1819	=cut
		1820
		1821	sub add_separator {
		1822	my ($self, $sep) = @_;
		1823
		1824	$sep ||= "=";
		1825
		1826	$self->add_item ({
		1827	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1828	text => "",
		1829	render => sub { $sep x $self->{term}->ncol },
		1830	activate => sub { },
		1831	});
		1832	}
		1833
		1834	=item $popup->add_button ($text, $cb)
		1835
		1836	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1837	selected.
		1838
		1839	=cut
1027		1840
1028	sub add_button {	1841	sub add_button {
1029	my ($self, $text, $cb) = @_;	1842	my ($self, $text, $cb) = @_;
1030		1843
1031	$self->add_item ({ type => "button", text => "[ $text ]", activate => $cb,	1844	$self->add_item ({ type => "button", text => $text, activate => $cb});
1032	render => sub { $_[0]{text} },
1033	});
1034	}	1845	}
		1846
		1847	=item $popup->add_toggle ($text, $initial_value, $cb)
		1848
		1849	Adds a toggle/checkbox item to the popup. The callback gets called
		1850	whenever it gets toggled, with a boolean indicating its new value as its
		1851	first argument.
		1852
		1853	=cut
1035		1854
1036	sub add_toggle {	1855	sub add_toggle {
1037	my ($self, $text, $cb, $value) = @_;	1856	my ($self, $text, $value, $cb) = @_;
1038		1857
1039	my $item; $item = {	1858	my $item; $item = {
1040	type => "button",	1859	type => "button",
1041	text => " $text",	1860	text => " $text",
1042	value => $value,	1861	value => $value,
1043	render => sub { ($item->{value} ? "✔" : " ") . $text },	1862	render => sub { ($_[0]{value} ? "* " : " ") . $text },
1044	activate => sub { $cb->($item->{value} = !$item->{value}); },	1863	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1045	};	1864	};
1046		1865
1047	$self->add_item ($item);	1866	$self->add_item ($item);
1048	}	1867	}
		1868
		1869	=item $popup->show
		1870
		1871	Displays the popup (which is initially hidden).
		1872
		1873	=cut
1049		1874
1050	sub show {	1875	sub show {
1051	my ($self) = @_;	1876	my ($self) = @_;
1052		1877
1053	local $urxvt::popup::self = $self;	1878	local $urxvt::popup::self = $self;
1054		1879
1055	urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,	1880	my $env = $self->{term}->env;
		1881	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		1882	delete $env->{LC_ALL};
		1883	$env->{LC_CTYPE} = $self->{term}->locale;
		1884
		1885	urxvt::term->new ($env, "popup",
		1886	"--perl-lib" => "", "--perl-ext-common" => "",
		1887	"-pty-fd" => -1, "-sl" => 0,
		1888	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1056	"--transient-for" => $self->{term}->parent,	1889	"--transient-for" => $self->{term}->parent,
		1890	"-display" => $self->{term}->display_id,
1057	"-pe" => "urxvt-popup")	1891	"-pe" => "urxvt-popup")
1058	or die "unable to create popup window\n";	1892	or die "unable to create popup window\n";
1059	}	1893	}
1060		1894
1061	sub DESTROY {	1895	sub DESTROY {
1062	my ($self) = @_;	1896	my ($self) = @_;
1063		1897
		1898	delete $self->{term}{_destroy}{$self};
1064	$self->{term}->ungrab;	1899	$self->{term}->ungrab;
1065	}	1900	}
		1901
		1902	=back
		1903
		1904	=cut
		1905
		1906	package urxvt::watcher;
		1907
		1908	@urxvt::timer::ISA = __PACKAGE__;
		1909	@urxvt::iow::ISA = __PACKAGE__;
		1910	@urxvt::pw::ISA = __PACKAGE__;
		1911	@urxvt::iw::ISA = __PACKAGE__;
1066		1912
1067	=head2 The C<urxvt::timer> Class	1913	=head2 The C<urxvt::timer> Class
1068		1914
1069	This class implements timer watchers/events. Time is represented as a	1915	This class implements timer watchers/events. Time is represented as a
1070	fractional number of seconds since the epoch. Example:	1916	fractional number of seconds since the epoch. Example:
…		…
1109		1955
1110	=item $timer = $timer->start ($tstamp)	1956	=item $timer = $timer->start ($tstamp)
1111		1957
1112	Set the event trigger time to C<$tstamp> and start the timer.	1958	Set the event trigger time to C<$tstamp> and start the timer.
1113		1959
		1960	=item $timer = $timer->after ($delay)
		1961
		1962	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
		1963
1114	=item $timer = $timer->stop	1964	=item $timer = $timer->stop
1115		1965
1116	Stop the timer.	1966	Stop the timer.
1117		1967
1118	=back	1968	=back
…		…
1123		1973
1124	$term->{socket} = ...	1974	$term->{socket} = ...
1125	$term->{iow} = urxvt::iow	1975	$term->{iow} = urxvt::iow
1126	->new	1976	->new
1127	->fd (fileno $term->{socket})	1977	->fd (fileno $term->{socket})
1128	->events (1) # wait for read data	1978	->events (urxvt::EVENT_READ)
1129	->start	1979	->start
1130	->cb (sub {	1980	->cb (sub {
1131	my ($iow, $revents) = @_;	1981	my ($iow, $revents) = @_;
1132	# $revents must be 1 here, no need to check	1982	# $revents must be 1 here, no need to check
1133	sysread $term->{socket}, my $buf, 8192	1983	sysread $term->{socket}, my $buf, 8192
…		…
1150		2000
1151	Set the filedescriptor (not handle) to watch.	2001	Set the filedescriptor (not handle) to watch.
1152		2002
1153	=item $iow = $iow->events ($eventmask)	2003	=item $iow = $iow->events ($eventmask)
1154		2004
1155	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	2005	Set the event mask to watch. The only allowed values are
1156	data, Bit #1 (value C<2>) enables watching for write data.	2006	C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
		2007	together, or C<urxvt::EVENT_NONE>.
1157		2008
1158	=item $iow = $iow->start	2009	=item $iow = $iow->start
1159		2010
1160	Start watching for requested events on the given handle.	2011	Start watching for requested events on the given handle.
1161		2012
1162	=item $iow = $iow->stop	2013	=item $iow = $iow->stop
1163		2014
1164	Stop watching for events on the given filehandle.	2015	Stop watching for events on the given filehandle.
		2016
		2017	=back
		2018
		2019	=head2 The C<urxvt::iw> Class
		2020
		2021	This class implements idle watchers, that get called automatically when
		2022	the process is idle. They should return as fast as possible, after doing
		2023	some useful work.
		2024
		2025	=over 4
		2026
		2027	=item $iw = new urxvt::iw
		2028
		2029	Create a new idle watcher object in stopped state.
		2030
		2031	=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
		2032
		2033	Set the callback to be called when the watcher triggers.
		2034
		2035	=item $timer = $timer->start
		2036
		2037	Start the watcher.
		2038
		2039	=item $timer = $timer->stop
		2040
		2041	Stop the watcher.
		2042
		2043	=back
		2044
		2045	=head2 The C<urxvt::pw> Class
		2046
		2047	This class implements process watchers. They create an event whenever a
		2048	process exits, after which they stop automatically.
		2049
		2050	my $pid = fork;
		2051	...
		2052	$term->{pw} = urxvt::pw
		2053	->new
		2054	->start ($pid)
		2055	->cb (sub {
		2056	my ($pw, $exit_status) = @_;
		2057	...
		2058	});
		2059
		2060	=over 4
		2061
		2062	=item $pw = new urxvt::pw
		2063
		2064	Create a new process watcher in stopped state.
		2065
		2066	=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
		2067
		2068	Set the callback to be called when the timer triggers.
		2069
		2070	=item $pw = $timer->start ($pid)
		2071
		2072	Tells the wqtcher to start watching for process C<$pid>.
		2073
		2074	=item $pw = $pw->stop
		2075
		2076	Stop the watcher.
1165		2077
1166	=back	2078	=back
1167		2079
1168	=head1 ENVIRONMENT	2080	=head1 ENVIRONMENT
1169		2081
…		…
1172	This variable controls the verbosity level of the perl extension. Higher	2084	This variable controls the verbosity level of the perl extension. Higher
1173	numbers indicate more verbose output.	2085	numbers indicate more verbose output.
1174		2086
1175	=over 4	2087	=over 4
1176		2088
1177	=item =0 - only fatal messages	2089	=item == 0 - fatal messages
1178		2090
1179	=item =3 - script loading and management	2091	=item >= 3 - script loading and management
1180		2092
1181	=item =10 - all events received	2093	=item >=10 - all called hooks
		2094
		2095	=item >=11 - hook reutrn values
1182		2096
1183	=back	2097	=back
1184		2098
1185	=head1 AUTHOR	2099	=head1 AUTHOR
1186		2100

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