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Revision 1.31 by root, Wed Jan 4 19:39:46 2006 UTC vs.
Revision 1.111 by root, Thu Jan 19 19:52:54 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	You can look at the source of the selection extension to see more
		73	interesting uses, such as parsing a line from beginning to end.
		74
		75	This extension also offers following bindable keyboard commands:
50		76
51	=over 4	77	=over 4
52		78
53	=item rot13	79	=item rot13
54		80
55	Rot-13 the selection when activated. Used via keyboard trigger:	81	Rot-13 the selection when activated. Used via keyboard trigger:
56		82
57	URxvt.keysym.C-M-r: perl:selection:rot13	83	URxvt.keysym.C-M-r: perl:selection:rot13
58		84
59	=back	85	=back
		86
		87	=item option-popup (enabled by default)
		88
		89	Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
		90	runtime.
		91
		92	=item selection-popup (enabled by default)
		93
		94	Binds a popup menu to Ctrl-Button3 that lets you convert the selection
		95	text into various other formats/action (such as uri unescaping, perl
		96	evalution, web-browser starting etc.), depending on content.
		97
		98	Other extensions can extend this popup menu by pushing a code reference
		99	onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the
		100	popup is displayed.
		101
		102	It's sole argument is the popup menu, which can be modified. The selection
		103	is in C<$_>, which can be used to decide wether to add something or not.
		104	It should either return nothing or a string and a code reference. The
		105	string will be used as button text and the code reference will be called
		106	when the button gets activated and should transform C<$_>.
		107
		108	The following will add an entry C<a to b> that transforms all C<a>s in
		109	the selection to C<b>s, but only if the selection currently contains any
		110	C<a>s:
		111
		112	push @{ $self->{term}{selection_popup_hook} }, sub {
		113	/a/ ? ("a to be" => sub { s/a/b/g }
		114	: ()
		115	};
		116
		117	=item searchable-scrollback<hotkey> (enabled by default)
		118
		119	Adds regex search functionality to the scrollback buffer, triggered
		120	by a hotkey (default: C<M-s>). While in search mode, normal terminal
		121	input/output is suspended and a regex is displayed at the bottom of the
		122	screen.
		123
		124	Inputting characters appends them to the regex and continues incremental
		125	search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
		126	search upwards/downwards in the scrollback buffer, C<End> jumps to the
		127	bottom. C<Escape> leaves search mode and returns to the point where search
		128	was started, while C<Enter> or C<Return> stay at the current position and
		129	additionally stores the first match in the current line into the primary
		130	selection.
		131
		132	=item selection-autotransform
		133
		134	This selection allows you to do automatic transforms on a selection
		135	whenever a selection is made.
		136
		137	It works by specifying perl snippets (most useful is a single C<s///>
		138	operator) that modify C<$_> as resources:
		139
		140	URxvt.selection-autotransform.0: transform
		141	URxvt.selection-autotransform.1: transform
		142	...
		143
		144	For example, the following will transform selections of the form
		145	C<filename:number>, often seen in compiler messages, into C<vi +$filename
		146	$word>:
		147
		148	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/vi +$2 \\Q$1\\E\\x0d/
		149
		150	And this example matches the same,but replaces it with vi-commands you can
		151	paste directly into your (vi :) editor:
		152
		153	URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
		154
		155	Of course, this can be modified to suit your needs and your editor :)
		156
		157	To expand the example above to typical perl error messages ("XXX at
		158	FILENAME line YYY."), you need a slightly more elaborate solution:
		159
		160	URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
		161	URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
		162
		163	The first line tells the selection code to treat the unchanging part of
		164	every error message as a selection pattern, and the second line transforms
		165	the message into vi commands to load the file.
		166
		167	=item mark-urls
		168
		169	Uses per-line display filtering (C<on_line_update>) to underline urls and
		170	make them clickable. When middle-clicked, the program specified in the
		171	resource C<urlLauncher> (default C<x-www-browser>) will be started with
		172	the URL as first argument.
		173
		174	=item automove-background
		175
		176	This is basically a one-line extension that dynamically changes the background pixmap offset
		177	to the window position, in effect creating the same effect as pseudo transparency with
		178	a custom pixmap. No scaling is supported in this mode. Exmaple:
		179
		180	@@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
		181
		182	=item block-graphics-to-ascii
		183
		184	A not very useful example of filtering all text output to the terminal,
		185	by replacing all line-drawing characters (U+2500 .. U+259F) by a
		186	similar-looking ascii character.
60		187
61	=item digital-clock	188	=item digital-clock
62		189
63	Displays a digital clock using the built-in overlay.	190	Displays a digital clock using the built-in overlay.
64		191
…		…
66		193
67	Displays a very simple digital clock in the upper right corner of the	194	Displays a very simple digital clock in the upper right corner of the
68	window. Illustrates overwriting the refresh callbacks to create your own	195	window. Illustrates overwriting the refresh callbacks to create your own
69	overlays or changes.	196	overlays or changes.
70		197
		198	=item selection-pastebin
		199
		200	This is a little rarely useful extension that Uploads the selection as
		201	textfile to a remote site (or does other things). (The implementation is
		202	not currently secure for use in a multiuser environment as it writes to
		203	F</tmp> directly.).
		204
		205	It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
		206	i.e.
		207
		208	URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
		209
		210	Pressing this combination runs a command with C<%> replaced by the name of
		211	the textfile. This command can be set via a resource:
		212
		213	URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
		214
		215	And the default is likely not useful to anybody but the few people around
		216	here :)
		217
		218	The name of the textfile is the hex encoded md5 sum of the selection, so
		219	the same content should lead to the same filename.
		220
		221	After a successful upload the selection will be replaced by the text given
		222	in the C<selection-pastebin-url> resource (again, the % is the placeholder
		223	for the filename):
		224
		225	URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
		226
71	=back	227	=back
		228
		229	=head1 API DOCUMENTATION
72		230
73	=head2 General API Considerations	231	=head2 General API Considerations
74		232
75	All objects (such as terminals, time watchers etc.) are typical	233	All objects (such as terminals, time watchers etc.) are typical
76	reference-to-hash objects. The hash can be used to store anything you	234	reference-to-hash objects. The hash can be used to store anything you
…		…
81	When objects are destroyed on the C++ side, the perl object hashes are	239	When objects are destroyed on the C++ side, the perl object hashes are
82	emptied, so its best to store related objects such as time watchers and	240	emptied, so its best to store related objects such as time watchers and
83	the like inside the terminal object so they get destroyed as soon as the	241	the like inside the terminal object so they get destroyed as soon as the
84	terminal is destroyed.	242	terminal is destroyed.
85		243
		244	Argument names also often indicate the type of a parameter. Here are some
		245	hints on what they mean:
		246
		247	=over 4
		248
		249	=item $text
		250
		251	Rxvt-unicodes special way of encoding text, where one "unicode" character
		252	always represents one screen cell. See L<ROW_t> for a discussion of this format.
		253
		254	=item $string
		255
		256	A perl text string, with an emphasis on I<text>. It can store all unicode
		257	characters and is to be distinguished with text encoded in a specific
		258	encoding (often locale-specific) and binary data.
		259
		260	=item $octets
		261
		262	Either binary data or - more common - a text string encoded in a
		263	locale-specific way.
		264
		265	=back
		266
		267	=head2 Extension Objects
		268
		269	Very perl extension is a perl class. A separate perl object is created
		270	for each terminal and each extension and passed as the first parameter to
		271	hooks. So extensions can use their C<$self> object without having to think
		272	about other extensions, with the exception of methods and members that
		273	begin with an underscore character C<_>: these are reserved for internal
		274	use.
		275
		276	Although it isn't a C<urxvt::term> object, you can call all methods of the
		277	C<urxvt::term> class on this object.
		278
		279	It has the following methods and data members:
		280
		281	=over 4
		282
		283	=item $urxvt_term = $self->{term}
		284
		285	Returns the C<urxvt::term> object associated with this instance of the
		286	extension. This member I<must not> be changed in any way.
		287
		288	=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
		289
		290	Dynamically enable the given hooks (named without the C<on_> prefix) for
		291	this extension, replacing any previous hook. This is useful when you want
		292	to overwrite time-critical hooks only temporarily.
		293
		294	=item $self->disable ($hook_name[, $hook_name..])
		295
		296	Dynamically disable the given hooks.
		297
		298	=back
		299
86	=head2 Hooks	300	=head2 Hooks
87		301
88	The following subroutines can be declared in loaded scripts, and will be	302	The following subroutines can be declared in extension files, and will be
89	called whenever the relevant event happens.	303	called whenever the relevant event happens.
90		304
91	The first argument passed to them is an object private to each terminal	305	The first argument passed to them is an extension oject as described in
92	and extension package. You can call all C<urxvt::term> methods on it, but	306	the in the C<Extension Objects> section.
93	its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
94	object that is shared between all packages is stored in the C<term>
95	member.
96		307
97	All of them must return a boolean value. If it is true, then the event	308	B<All> of these hooks must return a boolean value. If it is true, then the
98	counts as being I<consumed>, and the invocation of other hooks is skipped,	309	event counts as being I<consumed>, and the invocation of other hooks is
99	and the relevant action might not be carried out by the C++ code.	310	skipped, and the relevant action might not be carried out by the C++ code.
100		311
101	When in doubt, return a false value (preferably C<()>).	312	I<< When in doubt, return a false value (preferably C<()>). >>
102		313
103	=over 4	314	=over 4
104		315
105	=item on_init $term	316	=item on_init $term
106		317
107	Called after a new terminal object has been initialized, but before	318	Called after a new terminal object has been initialized, but before
108	windows are created or the command gets run.	319	windows are created or the command gets run. Most methods are unsafe to
		320	call or deliver senseless data, as terminal size and other characteristics
		321	have not yet been determined. You can safely query and change resources,
		322	though.
109		323
110	=item on_reset $term	324	=item on_reset $term
111		325
112	Called after the screen is "reset" for any reason, such as resizing or	326	Called after the screen is "reset" for any reason, such as resizing or
113	control sequences. Here is where you can react on changes to size-related	327	control sequences. Here is where you can react on changes to size-related
…		…
116	=item on_start $term	330	=item on_start $term
117		331
118	Called at the very end of initialisation of a new terminal, just before	332	Called at the very end of initialisation of a new terminal, just before
119	returning to the mainloop.	333	returning to the mainloop.
120		334
		335	=item on_child_start $term, $pid
		336
		337	Called just after the child process has been C<fork>ed.
		338
		339	=item on_child_exit $term, $status
		340
		341	Called just after the child process has exited. C<$status> is the status
		342	from C<waitpid>.
		343
121	=item on_sel_make $term, $eventtime	344	=item on_sel_make $term, $eventtime
122		345
123	Called whenever a selection has been made by the user, but before the	346	Called whenever a selection has been made by the user, but before the
124	selection text is copied, so changes to the beginning, end or type of the	347	selection text is copied, so changes to the beginning, end or type of the
125	selection will be honored.	348	selection will be honored.
…		…
138	=item on_sel_extend $term	361	=item on_sel_extend $term
139		362
140	Called whenever the user tries to extend the selection (e.g. with a double	363	Called whenever the user tries to extend the selection (e.g. with a double
141	click) and is either supposed to return false (normal operation), or	364	click) and is either supposed to return false (normal operation), or
142	should extend the selection itelf and return true to suppress the built-in	365	should extend the selection itelf and return true to suppress the built-in
143	processing.	366	processing. This can happen multiple times, as long as the callback
		367	returns true, it will be called on every further click by the user and is
		368	supposed to enlarge the selection more and more, if possible.
144		369
145	See the F<selection> example extension.	370	See the F<selection> example extension.
146
147	=item on_focus_in $term
148
149	Called whenever the window gets the keyboard focus, before urxvt does
150	focus in processing.
151
152	=item on_focus_out $term
153
154	Called wheneever the window loses keyboard focus, before urxvt does focus
155	out processing.
156		371
157	=item on_view_change $term, $offset	372	=item on_view_change $term, $offset
158		373
159	Called whenever the view offset changes, i..e the user or program	374	Called whenever the view offset changes, i..e the user or program
160	scrolls. Offset C<0> means display the normal terminal, positive values	375	scrolls. Offset C<0> means display the normal terminal, positive values
…		…
167	than the scroll back buffer or the terminal.	382	than the scroll back buffer or the terminal.
168		383
169	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,	384	It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
170	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total	385	$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
171	number of lines that will be in the scrollback buffer.	386	number of lines that will be in the scrollback buffer.
172
173	=item on_tty_activity $term *NYI*
174
175	Called whenever the program(s) running in the urxvt window send output.
176		387
177	=item on_osc_seq $term, $string	388	=item on_osc_seq $term, $string
178		389
179	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =	390	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
180	operating system command) is processed. Cursor position and other state	391	operating system command) is processed. Cursor position and other state
…		…
185		396
186	Be careful not ever to trust (in a security sense) the data you receive,	397	Be careful not ever to trust (in a security sense) the data you receive,
187	as its source can not easily be controleld (e-mail content, messages from	398	as its source can not easily be controleld (e-mail content, messages from
188	other users on the same system etc.).	399	other users on the same system etc.).
189		400
		401	=item on_add_lines $term, $string
		402
		403	Called whenever text is about to be output, with the text as argument. You
		404	can filter/change and output the text yourself by returning a true value
		405	and calling C<< $term->scr_add_lines >> yourself. Please note that this
		406	might be very slow, however, as your hook is called for B<all> text being
		407	output.
		408
		409	=item on_tt_write $term, $octets
		410
		411	Called whenever some data is written to the tty/pty and can be used to
		412	suppress or filter tty input.
		413
		414	=item on_line_update $term, $row
		415
		416	Called whenever a line was updated or changed. Can be used to filter
		417	screen output (e.g. underline urls or other useless stuff). Only lines
		418	that are being shown will be filtered, and, due to performance reasons,
		419	not always immediately.
		420
		421	The row number is always the topmost row of the line if the line spans
		422	multiple rows.
		423
		424	Please note that, if you change the line, then the hook might get called
		425	later with the already-modified line (e.g. if unrelated parts change), so
		426	you cannot just toggle rendition bits, but only set them.
		427
190	=item on_refresh_begin $term	428	=item on_refresh_begin $term
191		429
192	Called just before the screen gets redrawn. Can be used for overlay	430	Called just before the screen gets redrawn. Can be used for overlay
193	or similar effects by modify terminal contents in refresh_begin, and	431	or similar effects by modify terminal contents in refresh_begin, and
194	restoring them in refresh_end. The built-in overlay and selection display	432	restoring them in refresh_end. The built-in overlay and selection display
…		…
202		440
203	Called whenever the user presses a key combination that has a	441	Called whenever the user presses a key combination that has a
204	C<perl:string> action bound to it (see description of the B<keysym>	442	C<perl:string> action bound to it (see description of the B<keysym>
205	resource in the @@RXVT_NAME@@(1) manpage).	443	resource in the @@RXVT_NAME@@(1) manpage).
206		444
		445	=item on_x_event $term, $event
		446
		447	Called on every X event received on the vt window (and possibly other
		448	windows). Should only be used as a last resort. Most event structure
		449	members are not passed.
		450
		451	=item on_focus_in $term
		452
		453	Called whenever the window gets the keyboard focus, before rxvt-unicode
		454	does focus in processing.
		455
		456	=item on_focus_out $term
		457
		458	Called wheneever the window loses keyboard focus, before rxvt-unicode does
		459	focus out processing.
		460
		461	=item on_configure_notify $term, $event
		462
		463	=item on_key_press $term, $event, $keysym, $octets
		464
		465	=item on_key_release $term, $event, $keysym
		466
		467	=item on_button_press $term, $event
		468
		469	=item on_button_release $term, $event
		470
		471	=item on_motion_notify $term, $event
		472
		473	=item on_map_notify $term, $event
		474
		475	=item on_unmap_notify $term, $event
		476
		477	Called whenever the corresponding X event is received for the terminal If
		478	the hook returns true, then the even will be ignored by rxvt-unicode.
		479
		480	The event is a hash with most values as named by Xlib (see the XEvent
		481	manpage), with the additional members C<row> and C<col>, which are the row
		482	and column under the mouse cursor.
		483
		484	C<on_key_press> additionally receives the string rxvt-unicode would
		485	output, if any, in locale-specific encoding.
		486
		487	subwindow.
		488
207	=back	489	=back
208		490
		491	=cut
		492
		493	package urxvt;
		494
		495	use utf8;
		496	use strict;
		497	use Carp ();
		498	use Scalar::Util ();
		499	use List::Util ();
		500
		501	our $VERSION = 1;
		502	our $TERM;
		503	our @HOOKNAME;
		504	our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
		505	our %OPTION;
		506
		507	our $LIBDIR;
		508	our $RESNAME;
		509	our $RESCLASS;
		510	our $RXVTNAME;
		511
209	=head2 Variables in the C<urxvt> Package	512	=head2 Variables in the C<urxvt> Package
210		513
211	=over 4	514	=over 4
212		515
		516	=item $urxvt::LIBDIR
		517
		518	The rxvt-unicode library directory, where, among other things, the perl
		519	modules and scripts are stored.
		520
		521	=item $urxvt::RESCLASS, $urxvt::RESCLASS
		522
		523	The resource class and name rxvt-unicode uses to look up X resources.
		524
		525	=item $urxvt::RXVTNAME
		526
		527	The basename of the installed binaries, usually C<urxvt>.
		528
213	=item $urxvt::TERM	529	=item $urxvt::TERM
214		530
215	The current terminal. Whenever a callback/Hook is bein executed, this	531	The current terminal. This variable stores the current C<urxvt::term>
216	variable stores the current C<urxvt::term> object.	532	object, whenever a callback/hook is executing.
217		533
218	=back	534	=back
219		535
220	=head2 Functions in the C<urxvt> Package	536	=head2 Functions in the C<urxvt> Package
221		537
…		…
234	that calls this function.	550	that calls this function.
235		551
236	Using this function has the advantage that its output ends up in the	552	Using this function has the advantage that its output ends up in the
237	correct place, e.g. on stderr of the connecting urxvtc client.	553	correct place, e.g. on stderr of the connecting urxvtc client.
238		554
		555	Messages have a size limit of 1023 bytes currently.
		556
239	=item $time = urxvt::NOW	557	=item $time = urxvt::NOW
240		558
241	Returns the "current time" (as per the event loop).	559	Returns the "current time" (as per the event loop).
		560
		561	=item urxvt::CurrentTime
		562
		563	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		564	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		565	Button4Mask, Button5Mask, AnyModifier
		566
		567	=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
		568	ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
		569	PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
		570	Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
		571	KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
		572	ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
		573	FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
		574
		575	=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
		576	EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
		577	GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
		578	UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
		579	ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
		580	CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
		581	SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
		582
		583	Various constants for use in X calls and event processing.
242		584
243	=back	585	=back
244		586
245	=head2 RENDITION	587	=head2 RENDITION
246		588
…		…
273		615
274	=item $background = urxvt::GET_BASEBG $rend	616	=item $background = urxvt::GET_BASEBG $rend
275		617
276	Return the foreground/background colour index, respectively.	618	Return the foreground/background colour index, respectively.
277		619
278	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)	620	=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
279		621
280	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)	622	=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
281		623
282	Replace the foreground/background colour in the rendition mask with the	624	Replace the foreground/background colour in the rendition mask with the
283	specified one.	625	specified one.
284		626
285	=item $value = urxvt::GET_CUSTOM ($rend)	627	=item $value = urxvt::GET_CUSTOM $rend
286		628
287	Return the "custom" value: Every rendition has 5 bits for use by	629	Return the "custom" value: Every rendition has 5 bits for use by
288	extensions. They can be set and changed as you like and are initially	630	extensions. They can be set and changed as you like and are initially
289	zero.	631	zero.
290		632
291	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)	633	=item $rend = urxvt::SET_CUSTOM $rend, $new_value
292		634
293	Change the custom value.	635	Change the custom value.
294		636
295	=back	637	=back
296		638
297	=cut	639	=cut
298		640
299	package urxvt;
300
301	use strict;
302	use Scalar::Util ();
303
304	our $TERM;
305	our @HOOKNAME;
306	our $LIBDIR;
307
308	BEGIN {	641	BEGIN {
309	urxvt->bootstrap;
310
311	# overwrite perl's warn	642	# overwrite perl's warn
312	*CORE::GLOBAL::warn = sub {	643	*CORE::GLOBAL::warn = sub {
313	my $msg = join "", @_;	644	my $msg = join "", @_;
314	$msg .= "\n"	645	$msg .= "\n"
315	unless $msg =~ /\n$/;	646	unless $msg =~ /\n$/;
316	urxvt::warn ($msg);	647	urxvt::warn ($msg);
317	};	648	};
318	}	649	}
319		650
320	my @hook_count;
321	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};	651	my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
322		652
323	sub verbose {	653	sub verbose {
324	my ($level, $msg) = @_;	654	my ($level, $msg) = @_;
325	warn "$msg\n" if $level <= $verbosity;	655	warn "$msg\n" if $level <= $verbosity;
326	}	656	}
327		657
328	# find on_xxx subs in the package and register them	658	my %extension_pkg;
329	# as hooks
330	sub register_package($) {
331	my ($pkg) = @_;
332
333	for my $htype (0.. $#HOOKNAME) {
334	my $name = $HOOKNAME[$htype];
335
336	my $ref = $pkg->can ("on_" . lc $name)
337	or next;
338
339	$TERM->{_hook}[$htype]{$pkg} = $ref;
340	$hook_count[$htype]++
341	or set_should_invoke $htype, 1;
342	}
343	}
344
345	my $script_pkg = "script0000";
346	my %script_pkg;
347		659
348	# load a single script into its own package, once only	660	# load a single script into its own package, once only
349	sub script_package($) {	661	sub extension_package($) {
350	my ($path) = @_;	662	my ($path) = @_;
351		663
		664	no strict 'refs';
		665
352	$script_pkg{$path} ||= do {	666	$extension_pkg{$path} ||= do {
353	my $pkg = "urxvt::" . ($script_pkg++);	667	$path =~ /([^\/\\]+)$/;
		668	my $pkg = $1;
		669	$pkg =~ s/[^[:word:]]/_/g;
		670	$pkg = "urxvt::ext::$pkg";
354		671
355	verbose 3, "loading script '$path' into package '$pkg'";	672	verbose 3, "loading extension '$path' into package '$pkg'";
356		673
357	open my $fh, "<:raw", $path	674	open my $fh, "<:raw", $path
358	or die "$path: $!";	675	or die "$path: $!";
359		676
		677	@{"$pkg\::ISA"} = urxvt::term::extension::;
		678
		679	my $source =
360	my $source = "package $pkg; use strict; use utf8;\n"	680	"package $pkg; use strict; use utf8;\n"
361	. "#line 1 \"$path\"\n{\n"	681	. "#line 1 \"$path\"\n{\n"
362	. (do { local $/; <$fh> })	682	. (do { local $/; <$fh> })
363	. "\n};\n1";	683	. "\n};\n1";
364		684
		685	eval $source
365	eval $source or die "$path: $@";	686	or die "$path: $@";
366		687
367	$pkg	688	$pkg
368	}	689	}
369	}	690	}
370		691
…		…
375	local $TERM = shift;	696	local $TERM = shift;
376	my $htype = shift;	697	my $htype = shift;
377		698
378	if ($htype == 0) { # INIT	699	if ($htype == 0) { # INIT
379	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");	700	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
		701
		702	my %ext_arg;
380		703
381	for my $ext (map { split /:/, $TERM->resource ("perl_ext_$_") } 1, 2) {	704	for (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
		705	if ($_ eq "default") {
		706	$ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
		707	} elsif (/^-(.*)$/) {
		708	delete $ext_arg{$1};
		709	} elsif (/^([^<]+)<(.*)>$/) {
		710	push @{ $ext_arg{$1} }, $2;
		711	} else {
		712	$ext_arg{$_} ||= [];
		713	}
		714	}
		715
		716	while (my ($ext, $argv) = each %ext_arg) {
382	my @files = grep -f $_, map "$_/$ext", @dirs;	717	my @files = grep -f $_, map "$_/$ext", @dirs;
383		718
384	if (@files) {	719	if (@files) {
385	register_package script_package $files[0];	720	$TERM->register_package (extension_package $files[0], $argv);
386	} else {	721	} else {
387	warn "perl extension '$ext' not found in perl library search path\n";	722	warn "perl extension '$ext' not found in perl library search path\n";
388	}	723	}
389	}	724	}
		725
		726	eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
		727	warn $@ if $@;
390	}	728	}
391		729
392	$retval = undef;	730	$retval = undef;
393		731
394	if (my $cb = $TERM->{_hook}[$htype]) {	732	if (my $cb = $TERM->{_hook}[$htype]) {
…		…
396	if $verbosity >= 10;	734	if $verbosity >= 10;
397		735
398	keys %$cb;	736	keys %$cb;
399		737
400	while (my ($pkg, $cb) = each %$cb) {	738	while (my ($pkg, $cb) = each %$cb) {
401	$retval = $cb->(	739	$retval = eval { $cb->($TERM->{_pkg}{$pkg}, @_) }
402	$TERM->{_pkg}{$pkg} ||= do {
403	my $proxy = bless { }, urxvt::term::proxy::;
404	Scalar::Util::weaken ($proxy->{term} = $TERM);
405	$proxy
406	},
407	@_,
408	) and last;	740	and last;
409	}
410	}
411		741
412	if ($htype == 1) { # DESTROY	742	if ($@) {
413	# remove hooks if unused	743	$TERM->ungrab; # better to lose the grab than the session
414	if (my $hook = $TERM->{_hook}) {	744	warn $@;
415	for my $htype (0..$#$hook) {
416	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} }
417	or set_should_invoke $htype, 0;
418	}	745	}
419	}	746	}
420		747
		748	verbose 11, "$HOOKNAME[$htype] returning <$retval>"
		749	if $verbosity >= 11;
		750	}
		751
		752	if ($htype == 1) { # DESTROY
421	# clear package objects	753	# clear package objects
422	%$_ = () for values %{ $TERM->{_pkg} };	754	%$_ = () for values %{ $TERM->{_pkg} };
423		755
424	# clear package	756	# clear package
425	%$TERM = ();	757	%$TERM = ();
426	}	758	}
427		759
428	$retval	760	$retval
429	}	761	}
430		762
431	sub urxvt::term::proxy::AUTOLOAD {	763	# urxvt::term::extension
432	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/	764
		765	package urxvt::term::extension;
		766
		767	sub enable {
		768	my ($self, %hook) = @_;
		769	my $pkg = $self->{_pkg};
		770
		771	while (my ($name, $cb) = each %hook) {
		772	my $htype = $HOOKTYPE{uc $name};
		773	defined $htype
		774	or Carp::croak "unsupported hook type '$name'";
		775
		776	$self->set_should_invoke ($htype, +1)
		777	unless exists $self->{term}{_hook}[$htype]{$pkg};
		778
		779	$self->{term}{_hook}[$htype]{$pkg} = $cb;
		780	}
		781	}
		782
		783	sub disable {
		784	my ($self, @hook) = @_;
		785	my $pkg = $self->{_pkg};
		786
		787	for my $name (@hook) {
		788	my $htype = $HOOKTYPE{uc $name};
		789	defined $htype
		790	or Carp::croak "unsupported hook type '$name'";
		791
		792	$self->set_should_invoke ($htype, -1)
		793	if delete $self->{term}{_hook}[$htype]{$pkg};
		794	}
		795	}
		796
		797	our $AUTOLOAD;
		798
		799	sub AUTOLOAD {
		800	$AUTOLOAD =~ /:([^:]+)$/
433	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";	801	or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
434		802
435	eval qq{	803	eval qq{
436	sub $urxvt::term::proxy::AUTOLOAD {	804	sub $AUTOLOAD {
437	my \$proxy = shift;	805	my \$proxy = shift;
438	\$proxy->{term}->$1 (\@_)	806	\$proxy->{term}->$1 (\@_)
439	}	807	}
440	1	808	1
441	} or die "FATAL: unable to compile method forwarder: $@";	809	} or die "FATAL: unable to compile method forwarder: $@";
442		810
443	goto &$urxvt::term::proxy::AUTOLOAD;	811	goto &$AUTOLOAD;
444	}	812	}
		813
		814	sub DESTROY {
		815	# nop
		816	}
		817
		818	# urxvt::destroy_hook
		819
		820	sub urxvt::destroy_hook::DESTROY {
		821	${$_[0]}->();
		822	}
		823
		824	sub urxvt::destroy_hook(&) {
		825	bless \shift, urxvt::destroy_hook::
		826	}
		827
		828	package urxvt::anyevent;
		829
		830	=head2 The C<urxvt::anyevent> Class
		831
		832	The sole purpose of this class is to deliver an interface to the
		833	C<AnyEvent> module - any module using it will work inside urxvt without
		834	further programming. The only exception is that you cannot wait on
		835	condition variables, but non-blocking condvar use is ok. What this means
		836	is that you cannot use blocking APIs, but the non-blocking variant should
		837	work.
		838
		839	=cut
		840
		841	our $VERSION = 1;
		842
		843	$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
		844	push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
		845
		846	sub timer {
		847	my ($class, %arg) = @_;
		848
		849	my $cb = $arg{cb};
		850
		851	urxvt::timer
		852	->new
		853	->start (urxvt::NOW + $arg{after})
		854	->cb (sub {
		855	$_[0]->stop; # need to cancel manually
		856	$cb->();
		857	})
		858	}
		859
		860	sub io {
		861	my ($class, %arg) = @_;
		862
		863	my $cb = $arg{cb};
		864
		865	bless [$arg{fh}, urxvt::iow
		866	->new
		867	->fd (fileno $arg{fh})
		868	->events (($arg{poll} =~ /r/ ? 1 : 0)
		869	| ($arg{poll} =~ /w/ ? 2 : 0))
		870	->start
		871	->cb (sub {
		872	$cb->(($_[1] & 1 ? 'r' : '')
		873	. ($_[1] & 2 ? 'w' : ''));
		874	})],
		875	urxvt::anyevent::
		876	}
		877
		878	sub DESTROY {
		879	$_[0][1]->stop;
		880	}
		881
		882	sub condvar {
		883	bless \my $flag, urxvt::anyevent::condvar::
		884	}
		885
		886	sub urxvt::anyevent::condvar::broadcast {
		887	${$_[0]}++;
		888	}
		889
		890	sub urxvt::anyevent::condvar::wait {
		891	unless (${$_[0]}) {
		892	Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
		893	}
		894	}
		895
		896	package urxvt::term;
445		897
446	=head2 The C<urxvt::term> Class	898	=head2 The C<urxvt::term> Class
447		899
448	=over 4	900	=over 4
		901
		902	=cut
		903
		904	# find on_xxx subs in the package and register them
		905	# as hooks
		906	sub register_package {
		907	my ($self, $pkg, $argv) = @_;
		908
		909	my $proxy = bless {
		910	_pkg => $pkg,
		911	argv => $argv,
		912	}, $pkg;
		913	Scalar::Util::weaken ($proxy->{term} = $self);
		914
		915	$self->{_pkg}{$pkg} = $proxy;
		916
		917	for my $name (@HOOKNAME) {
		918	if (my $ref = $pkg->can ("on_" . lc $name)) {
		919	$proxy->enable ($name => $ref);
		920	}
		921	}
		922	}
		923
		924	=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
		925
		926	Creates a new terminal, very similar as if you had started it with system
		927	C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
		928	hash which defines the environment of the new terminal.
		929
		930	Croaks (and probably outputs an error message) if the new instance
		931	couldn't be created. Returns C<undef> if the new instance didn't
		932	initialise perl, and the terminal object otherwise. The C<init> and
		933	C<start> hooks will be called during this call.
		934
		935	=cut
		936
		937	sub new {
		938	my ($class, $env, @args) = @_;
		939
		940	_new ([ map "$_=$env->{$_}", keys %$env ], @args);
		941	}
		942
		943	=item $term->destroy
		944
		945	Destroy the terminal object (close the window, free resources
		946	etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
		947	watchers (timers, io watchers) are still active.
		948
		949	=item $term->exec_async ($cmd[, @args])
		950
		951	Works like the combination of the C<fork>/C<exec> builtins, which executes
		952	("starts") programs in the background. This function takes care of setting
		953	the user environment before exec'ing the command (e.g. C<PATH>) and should
		954	be preferred over explicit calls to C<exec> or C<system>.
		955
		956	Returns the pid of the subprocess or C<undef> on error.
		957
		958	=cut
		959
		960	sub exec_async {
		961	my $self = shift;
		962
		963	my $pid = fork;
		964
		965	return $pid
		966	if !defined $pid or $pid;
		967
		968	%ENV = %{ $self->env };
		969
		970	exec @_;
		971	urxvt::_exit 255;
		972	}
		973
		974	=item $isset = $term->option ($optval[, $set])
		975
		976	Returns true if the option specified by C<$optval> is enabled, and
		977	optionally change it. All option values are stored by name in the hash
		978	C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
		979
		980	Here is a a likely non-exhaustive list of option names, please see the
		981	source file F</src/optinc.h> to see the actual list:
		982
		983	borderLess console cursorBlink cursorUnderline hold iconic insecure
		984	intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
		985	override-redirect pastableTabs pointerBlank reverseVideo scrollBar
		986	scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
		987	scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
		988	transparent tripleclickwords utmpInhibit visualBell
449		989
450	=item $value = $term->resource ($name[, $newval])	990	=item $value = $term->resource ($name[, $newval])
451		991
452	Returns the current resource value associated with a given name and	992	Returns the current resource value associated with a given name and
453	optionally sets a new value. Setting values is most useful in the C<init>	993	optionally sets a new value. Setting values is most useful in the C<init>
…		…
463		1003
464	Please note that resource strings will currently only be freed when the	1004	Please note that resource strings will currently only be freed when the
465	terminal is destroyed, so changing options frequently will eat memory.	1005	terminal is destroyed, so changing options frequently will eat memory.
466		1006
467	Here is a a likely non-exhaustive list of resource names, not all of which	1007	Here is a a likely non-exhaustive list of resource names, not all of which
468	are supported in every build, please see the source to see the actual	1008	are supported in every build, please see the source file F</src/rsinc.h>
469	list:	1009	to see the actual list:
470		1010
471	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	1011	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
472	borderLess color cursorBlink cursorUnderline cutchars delete_key	1012	borderLess color cursorBlink cursorUnderline cutchars delete_key
473	display_name embed ext_bwidth fade font geometry hold iconName	1013	display_name embed ext_bwidth fade font geometry hold iconName
474	imFont imLocale inputMethod insecure int_bwidth intensityStyles	1014	imFont imLocale inputMethod insecure int_bwidth intensityStyles
475	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	1015	italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
476	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2	1016	mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
477	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	1017	perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
478	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	1018	preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
479	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	1019	scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
480	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	1020	scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
481	shade term_name title transparent transparent_all tripleclickwords	1021	secondaryScreen secondaryScroll selectstyle shade term_name title
482	utmpInhibit visualBell	1022	transient_for transparent transparent_all tripleclickwords utmpInhibit
		1023	visualBell
483		1024
484	=cut	1025	=cut
485		1026
486	sub urxvt::term::resource($$;$) {	1027	sub resource($$;$) {
487	my ($self, $name) = (shift, shift);	1028	my ($self, $name) = (shift, shift);
488	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);	1029	unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
489	goto &urxvt::term::_resource;	1030	&urxvt::term::_resource
490	}	1031	}
		1032
		1033	=item $value = $term->x_resource ($pattern)
		1034
		1035	Returns the X-Resource for the given pattern, excluding the program or
		1036	class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
		1037	same value as used by this instance of rxvt-unicode. Returns C<undef> if no
		1038	resource with that pattern exists.
		1039
		1040	This method should only be called during the C<on_start> hook, as there is
		1041	only one resource database per display, and later invocations might return
		1042	the wrong resources.
		1043
		1044	=item $success = $term->parse_keysym ($keysym_spec, $command_string)
		1045
		1046	Adds a keymap translation exactly as specified via a resource. See the
		1047	C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
		1048
		1049	=item $rend = $term->rstyle ([$new_rstyle])
		1050
		1051	Return and optionally change the current rendition. Text that is output by
		1052	the terminal application will use this style.
		1053
		1054	=item ($row, $col) = $term->screen_cur ([$row, $col])
		1055
		1056	Return the current coordinates of the text cursor position and optionally
		1057	set it (which is usually bad as applications don't expect that).
491		1058
492	=item ($row, $col) = $term->selection_mark ([$row, $col])	1059	=item ($row, $col) = $term->selection_mark ([$row, $col])
493		1060
494	=item ($row, $col) = $term->selection_beg ([$row, $col])	1061	=item ($row, $col) = $term->selection_beg ([$row, $col])
495		1062
496	=item ($row, $col) = $term->selection_end ([$row, $col])	1063	=item ($row, $col) = $term->selection_end ([$row, $col])
497		1064
498	Return the current values of the selection mark, begin or end positions,	1065	Return the current values of the selection mark, begin or end positions,
499	and optionally set them to new values.	1066	and optionally set them to new values.
500		1067
		1068	=item $term->selection_make ($eventtime[, $rectangular])
		1069
		1070	Tries to make a selection as set by C<selection_beg> and
		1071	C<selection_end>. If C<$rectangular> is true (default: false), a
		1072	rectangular selection will be made. This is the prefered function to make
		1073	a selection.
		1074
501	=item $success = $term->selection_grab ($eventtime)	1075	=item $success = $term->selection_grab ($eventtime)
502		1076
503	Try to request the primary selection from the server (for example, as set	1077	Try to request the primary selection text from the server (for example, as
504	by the next method).	1078	set by the next method). No visual feedback will be given. This function
		1079	is mostly useful from within C<on_sel_grab> hooks.
505		1080
506	=item $oldtext = $term->selection ([$newtext])	1081	=item $oldtext = $term->selection ([$newtext])
507		1082
508	Return the current selection text and optionally replace it by C<$newtext>.	1083	Return the current selection text and optionally replace it by C<$newtext>.
509		1084
510	#=item $term->overlay ($x, $y, $text)	1085	=item $term->overlay_simple ($x, $y, $text)
511	#	1086
512	#Create a simple multi-line overlay box. See the next method for details.	1087	Create a simple multi-line overlay box. See the next method for details.
513	#	1088
514	#=cut	1089	=cut
515		1090
516	sub urxvt::term::scr_overlay {	1091	sub overlay_simple {
517	die;
518	my ($self, $x, $y, $text) = @_;	1092	my ($self, $x, $y, $text) = @_;
519		1093
520	my @lines = split /\n/, $text;	1094	my @lines = split /\n/, $text;
521		1095
522	my $w = 0;	1096	my $w = List::Util::max map $self->strwidth ($_), @lines;
523	for (map $self->strwidth ($_), @lines) {
524	$w = $_ if $w < $_;
525	}
526		1097
527	$self->scr_overlay_new ($x, $y, $w, scalar @lines);	1098	my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
528	$self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;	1099	$overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
		1100
		1101	$overlay
529	}	1102	}
530		1103
531	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])	1104	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
532		1105
533	Create a new (empty) overlay at the given position with the given	1106	Create a new (empty) overlay at the given position with the given
…		…
561		1134
562	If hidden, display the overlay again.	1135	If hidden, display the overlay again.
563		1136
564	=back	1137	=back
565		1138
		1139	=item $popup = $term->popup ($event)
		1140
		1141	Creates a new C<urxvt::popup> object that implements a popup menu. The
		1142	C<$event> I<must> be the event causing the menu to pop up (a button event,
		1143	currently).
		1144
		1145	=cut
		1146
		1147	sub popup {
		1148	my ($self, $event) = @_;
		1149
		1150	$self->grab ($event->{time}, 1)
		1151	or return;
		1152
		1153	my $popup = bless {
		1154	term => $self,
		1155	event => $event,
		1156	}, urxvt::popup::;
		1157
		1158	Scalar::Util::weaken $popup->{term};
		1159
		1160	$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
		1161	Scalar::Util::weaken $self->{_destroy}{$popup};
		1162
		1163	$popup
		1164	}
		1165
566	=item $cellwidth = $term->strwidth $string	1166	=item $cellwidth = $term->strwidth ($string)
567		1167
568	Returns the number of screen-cells this string would need. Correctly	1168	Returns the number of screen-cells this string would need. Correctly
569	accounts for wide and combining characters.	1169	accounts for wide and combining characters.
570		1170
571	=item $octets = $term->locale_encode $string	1171	=item $octets = $term->locale_encode ($string)
572		1172
573	Convert the given text string into the corresponding locale encoding.	1173	Convert the given text string into the corresponding locale encoding.
574		1174
575	=item $string = $term->locale_decode $octets	1175	=item $string = $term->locale_decode ($octets)
576		1176
577	Convert the given locale-encoded octets into a perl string.	1177	Convert the given locale-encoded octets into a perl string.
		1178
		1179	=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
		1180
		1181	XORs the rendition values in the given span with the provided value
		1182	(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
		1183	refresh hooks to provide effects similar to the selection.
		1184
		1185	=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
		1186
		1187	Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
		1188	whitespace will additionally be xored with the C<$rstyle2>, which defaults
		1189	to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
		1190	it instead. Both styles I<MUST NOT> contain font styles.
		1191
		1192	=item $term->scr_bell
		1193
		1194	Ring the bell!
		1195
		1196	=item $term->scr_add_lines ($string)
		1197
		1198	Write the given text string to the screen, as if output by the application
		1199	running inside the terminal. It may not contain command sequences (escape
		1200	codes), but is free to use line feeds, carriage returns and tabs. The
		1201	string is a normal text string, not in locale-dependent encoding.
		1202
		1203	Normally its not a good idea to use this function, as programs might be
		1204	confused by changes in cursor position or scrolling. Its useful inside a
		1205	C<on_add_lines> hook, though.
		1206
		1207	=item $term->cmd_parse ($octets)
		1208
		1209	Similar to C<scr_add_lines>, but the argument must be in the
		1210	locale-specific encoding of the terminal and can contain command sequences
		1211	(escape codes) that will be interpreted.
578		1212
579	=item $term->tt_write ($octets)	1213	=item $term->tt_write ($octets)
580		1214
581	Write the octets given in C<$data> to the tty (i.e. as program input). To	1215	Write the octets given in C<$data> to the tty (i.e. as program input). To
582	pass characters instead of octets, you should convert your strings first	1216	pass characters instead of octets, you should convert your strings first
583	to the locale-specific encoding using C<< $term->locale_encode >>.	1217	to the locale-specific encoding using C<< $term->locale_encode >>.
584		1218
		1219	=item $old_events = $term->pty_ev_events ([$new_events])
		1220
		1221	Replaces the event mask of the pty watcher by the given event mask. Can
		1222	be used to suppress input and output handling to the pty/tty. See the
		1223	description of C<< urxvt::timer->events >>. Make sure to always restore
		1224	the previous value.
		1225
		1226	=item $windowid = $term->parent
		1227
		1228	Return the window id of the toplevel window.
		1229
		1230	=item $windowid = $term->vt
		1231
		1232	Return the window id of the terminal window.
		1233
		1234	=item $term->vt_emask_add ($x_event_mask)
		1235
		1236	Adds the specified events to the vt event mask. Useful e.g. when you want
		1237	to receive pointer events all the times:
		1238
		1239	$term->vt_emask_add (urxvt::PointerMotionMask);
		1240
		1241	=item $window_width = $term->width
		1242
		1243	=item $window_height = $term->height
		1244
		1245	=item $font_width = $term->fwidth
		1246
		1247	=item $font_height = $term->fheight
		1248
		1249	=item $font_ascent = $term->fbase
		1250
585	=item $nrow = $term->nrow	1251	=item $terminal_rows = $term->nrow
586		1252
587	=item $ncol = $term->ncol	1253	=item $terminal_columns = $term->ncol
588		1254
589	Return the number of rows/columns of the terminal window (i.e. as	1255	=item $has_focus = $term->focus
590	specified by C<-geometry>, excluding any scrollback).
591		1256
		1257	=item $is_mapped = $term->mapped
		1258
		1259	=item $max_scrollback = $term->saveLines
		1260
		1261	=item $nrow_plus_saveLines = $term->total_rows
		1262
		1263	=item $topmost_scrollback_row = $term->top_row
		1264
		1265	Return various integers describing terminal characteristics.
		1266
		1267	=item $x_display = $term->display_id
		1268
		1269	Return the DISPLAY used by rxvt-unicode.
		1270
		1271	=item $lc_ctype = $term->locale
		1272
		1273	Returns the LC_CTYPE category string used by this rxvt-unicode.
		1274
592	=item $nsaved = $term->nsaved	1275	=item $env = $term->env
593		1276
594	Returns the number of lines in the scrollback buffer.	1277	Returns a copy of the environment in effect for the terminal as a hashref
		1278	similar to C<\%ENV>.
		1279
		1280	=cut
		1281
		1282	sub env {
		1283	if (my $env = $_[0]->_env) {
		1284	+{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
		1285	} else {
		1286	+{ %ENV }
		1287	}
		1288	}
		1289
		1290	=item $modifiermask = $term->ModLevel3Mask
		1291
		1292	=item $modifiermask = $term->ModMetaMask
		1293
		1294	=item $modifiermask = $term->ModNumLockMask
		1295
		1296	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		1297	AltGr), the meta key (often Alt) and the num lock key, if applicable.
595		1298
596	=item $view_start = $term->view_start ([$newvalue])	1299	=item $view_start = $term->view_start ([$newvalue])
597		1300
598	Returns the negative row number of the topmost line. Minimum value is	1301	Returns the row number of the topmost displayed line. Maximum value is
599	C<0>, which displays the normal terminal contents. Larger values scroll	1302	C<0>, which displays the normal terminal contents. Lower values scroll
600	this many lines into the scrollback buffer.	1303	this many lines into the scrollback buffer.
601		1304
602	=item $term->want_refresh	1305	=item $term->want_refresh
603		1306
604	Requests a screen refresh. At the next opportunity, rxvt-unicode will	1307	Requests a screen refresh. At the next opportunity, rxvt-unicode will
…		…
662	about the logical line that row C<$row_number> is part of. It supports the	1365	about the logical line that row C<$row_number> is part of. It supports the
663	following methods:	1366	following methods:
664		1367
665	=over 4	1368	=over 4
666		1369
667	=item $text = $line->t	1370	=item $text = $line->t ([$new_text])
668		1371
669	Returns the full text of the line, similar to C<ROW_t>	1372	Returns or replaces the full text of the line, similar to C<ROW_t>
670		1373
671	=item $rend = $line->r	1374	=item $rend = $line->r ([$new_rend])
672		1375
673	Returns the full rendition array of the line, similar to C<ROW_r>	1376	Returns or replaces the full rendition array of the line, similar to C<ROW_r>
674		1377
675	=item $length = $line->l	1378	=item $length = $line->l
676		1379
677	Returns the length of the line in cells, similar to C<ROW_l>.	1380	Returns the length of the line in cells, similar to C<ROW_l>.
678		1381
…		…
683	Return the row number of the first/last row of the line, respectively.	1386	Return the row number of the first/last row of the line, respectively.
684		1387
685	=item $offset = $line->offset_of ($row, $col)	1388	=item $offset = $line->offset_of ($row, $col)
686		1389
687	Returns the character offset of the given row|col pair within the logical	1390	Returns the character offset of the given row|col pair within the logical
688	line.	1391	line. Works for rows outside the line, too, and returns corresponding
		1392	offsets outside the string.
689		1393
690	=item ($row, $col) = $line->coord_of ($offset)	1394	=item ($row, $col) = $line->coord_of ($offset)
691		1395
692	Translates a string offset into terminal coordinates again.	1396	Translates a string offset into terminal coordinates again.
693		1397
694	=back	1398	=back
695		1399
696	=cut	1400	=cut
697		1401
698	sub urxvt::term::line {	1402	sub line {
699	my ($self, $row) = @_;	1403	my ($self, $row) = @_;
700		1404
701	my $maxrow = $self->nrow - 1;	1405	my $maxrow = $self->nrow - 1;
702		1406
703	my ($beg, $end) = ($row, $row);	1407	my ($beg, $end) = ($row, $row);
…		…
707		1411
708	bless {	1412	bless {
709	term => $self,	1413	term => $self,
710	beg => $beg,	1414	beg => $beg,
711	end => $end,	1415	end => $end,
		1416	ncol => $self->ncol,
712	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),	1417	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
713	}, urxvt::line::	1418	}, urxvt::line::
714	}	1419	}
715		1420
716	sub urxvt::line::t {	1421	sub urxvt::line::t {
717	my ($self) = @_;	1422	my ($self) = @_;
718		1423
		1424	if (@_ > 1)
		1425	{
		1426	$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1427	for $self->{beg} .. $self->{end};
		1428	}
		1429
		1430	defined wantarray &&
719	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),	1431	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
720	0, $self->{len}	1432	0, $self->{len}
721	}	1433	}
722		1434
723	sub urxvt::line::r {	1435	sub urxvt::line::r {
724	my ($self) = @_;	1436	my ($self) = @_;
725		1437
		1438	if (@_ > 1)
		1439	{
		1440	$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		1441	for $self->{beg} .. $self->{end};
		1442	}
		1443
		1444	if (defined wantarray) {
726	my $rend = [	1445	my $rend = [
727	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}	1446	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
728	];	1447	];
729	$#$rend = $self->{len} - 1;	1448	$#$rend = $self->{len} - 1;
730	$rend	1449	return $rend;
		1450	}
		1451
		1452	()
731	}	1453	}
732		1454
733	sub urxvt::line::beg { $_[0]{beg} }	1455	sub urxvt::line::beg { $_[0]{beg} }
734	sub urxvt::line::end { $_[0]{end} }	1456	sub urxvt::line::end { $_[0]{end} }
735	sub urxvt::line::l { $_[0]{len} }	1457	sub urxvt::line::l { $_[0]{len} }
736		1458
737	sub urxvt::line::offset_of {	1459	sub urxvt::line::offset_of {
738	my ($self, $row, $col) = @_;	1460	my ($self, $row, $col) = @_;
739		1461
740	($row - $self->{beg}) * $self->{term}->ncol + $col	1462	($row - $self->{beg}) * $self->{ncol} + $col
741	}	1463	}
742		1464
743	sub urxvt::line::coord_of {	1465	sub urxvt::line::coord_of {
744	my ($self, $offset) = @_;	1466	my ($self, $offset) = @_;
745		1467
746	use integer;	1468	use integer;
747		1469
748	(	1470	(
749	$offset / $self->{term}->ncol + $self->{beg},	1471	$offset / $self->{ncol} + $self->{beg},
750	$offset % $self->{term}->ncol	1472	$offset % $self->{ncol}
751	)	1473	)
752	}	1474	}
753		1475
754	=item ($row, $col) = $line->coord_of ($offset)
755	=item $text = $term->special_encode $string	1476	=item $text = $term->special_encode $string
756		1477
757	Converts a perl string into the special encoding used by rxvt-unicode,	1478	Converts a perl string into the special encoding used by rxvt-unicode,
758	where one character corresponds to one screen cell. See	1479	where one character corresponds to one screen cell. See
759	C<< $term->ROW_t >> for details.	1480	C<< $term->ROW_t >> for details.
760		1481
761	=item $string = $term->special_decode $text	1482	=item $string = $term->special_decode $text
762		1483
763	Converts rxvt-unicodes text reprsentation into a perl string. See	1484	Converts rxvt-unicodes text reprsentation into a perl string. See
764	C<< $term->ROW_t >> for details.	1485	C<< $term->ROW_t >> for details.
		1486
		1487	=item $success = $term->grab_button ($button, $modifiermask)
		1488
		1489	Registers a synchronous button grab. See the XGrabButton manpage.
		1490
		1491	=item $success = $term->grab ($eventtime[, $sync])
		1492
		1493	Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
		1494	synchronous (C<$sync> is true). Also remembers the grab timestampe.
		1495
		1496	=item $term->allow_events_async
		1497
		1498	Calls XAllowEvents with AsyncBoth for the most recent grab.
		1499
		1500	=item $term->allow_events_sync
		1501
		1502	Calls XAllowEvents with SyncBoth for the most recent grab.
		1503
		1504	=item $term->allow_events_replay
		1505
		1506	Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
		1507	recent grab.
		1508
		1509	=item $term->ungrab
		1510
		1511	Calls XUngrab for the most recent grab. Is called automatically on
		1512	evaluation errors, as it is better to lose the grab in the error case as
		1513	the session.
		1514
		1515	=back
		1516
		1517	=cut
		1518
		1519	package urxvt::popup;
		1520
		1521	=head2 The C<urxvt::popup> Class
		1522
		1523	=over 4
		1524
		1525	=cut
		1526
		1527	sub add_item {
		1528	my ($self, $item) = @_;
		1529
		1530	$item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
		1531	$item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
		1532	$item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
		1533
		1534	$item->{render} ||= sub { $_[0]{text} };
		1535
		1536	push @{ $self->{item} }, $item;
		1537	}
		1538
		1539	=item $popup->add_title ($title)
		1540
		1541	Adds a non-clickable title to the popup.
		1542
		1543	=cut
		1544
		1545	sub add_title {
		1546	my ($self, $title) = @_;
		1547
		1548	$self->add_item ({
		1549	rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
		1550	text => $title,
		1551	activate => sub { },
		1552	});
		1553	}
		1554
		1555	=item $popup->add_separator ([$sepchr])
		1556
		1557	Creates a separator, optionally using the character given as C<$sepchr>.
		1558
		1559	=cut
		1560
		1561	sub add_separator {
		1562	my ($self, $sep) = @_;
		1563
		1564	$sep ||= "=";
		1565
		1566	$self->add_item ({
		1567	rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
		1568	text => "",
		1569	render => sub { $sep x $self->{term}->ncol },
		1570	activate => sub { },
		1571	});
		1572	}
		1573
		1574	=item $popup->add_button ($text, $cb)
		1575
		1576	Adds a clickable button to the popup. C<$cb> is called whenever it is
		1577	selected.
		1578
		1579	=cut
		1580
		1581	sub add_button {
		1582	my ($self, $text, $cb) = @_;
		1583
		1584	$self->add_item ({ type => "button", text => $text, activate => $cb});
		1585	}
		1586
		1587	=item $popup->add_toggle ($text, $cb, $initial_value)
		1588
		1589	Adds a toggle/checkbox item to the popup. Teh callback gets called
		1590	whenever it gets toggled, with a boolean indicating its value as its first
		1591	argument.
		1592
		1593	=cut
		1594
		1595	sub add_toggle {
		1596	my ($self, $text, $cb, $value) = @_;
		1597
		1598	my $item; $item = {
		1599	type => "button",
		1600	text => " $text",
		1601	value => $value,
		1602	render => sub { ($_[0]{value} ? "* " : " ") . $text },
		1603	activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
		1604	};
		1605
		1606	$self->add_item ($item);
		1607	}
		1608
		1609	=item $popup->show
		1610
		1611	Displays the popup (which is initially hidden).
		1612
		1613	=cut
		1614
		1615	sub show {
		1616	my ($self) = @_;
		1617
		1618	local $urxvt::popup::self = $self;
		1619
		1620	my $env = $self->{term}->env;
		1621	# we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
		1622	delete $env->{LC_ALL};
		1623	$env->{LC_CTYPE} = $self->{term}->locale;
		1624
		1625	urxvt::term->new ($env, "popup",
		1626	"--perl-lib" => "", "--perl-ext-common" => "",
		1627	"-pty-fd" => -1, "-sl" => 0,
		1628	"-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
		1629	"--transient-for" => $self->{term}->parent,
		1630	"-display" => $self->{term}->display_id,
		1631	"-pe" => "urxvt-popup")
		1632	or die "unable to create popup window\n";
		1633	}
		1634
		1635	sub DESTROY {
		1636	my ($self) = @_;
		1637
		1638	delete $self->{term}{_destroy}{$self};
		1639	$self->{term}->ungrab;
		1640	}
765		1641
766	=back	1642	=back
767		1643
768	=head2 The C<urxvt::timer> Class	1644	=head2 The C<urxvt::timer> Class
769		1645
…		…
810		1686
811	=item $timer = $timer->start ($tstamp)	1687	=item $timer = $timer->start ($tstamp)
812		1688
813	Set the event trigger time to C<$tstamp> and start the timer.	1689	Set the event trigger time to C<$tstamp> and start the timer.
814		1690
		1691	=item $timer = $timer->after ($delay)
		1692
		1693	Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
		1694
815	=item $timer = $timer->stop	1695	=item $timer = $timer->stop
816		1696
817	Stop the timer.	1697	Stop the timer.
818		1698
819	=back	1699	=back
…		…
824		1704
825	$term->{socket} = ...	1705	$term->{socket} = ...
826	$term->{iow} = urxvt::iow	1706	$term->{iow} = urxvt::iow
827	->new	1707	->new
828	->fd (fileno $term->{socket})	1708	->fd (fileno $term->{socket})
829	->events (1) # wait for read data	1709	->events (urxvt::EVENT_READ)
830	->start	1710	->start
831	->cb (sub {	1711	->cb (sub {
832	my ($iow, $revents) = @_;	1712	my ($iow, $revents) = @_;
833	# $revents must be 1 here, no need to check	1713	# $revents must be 1 here, no need to check
834	sysread $term->{socket}, my $buf, 8192	1714	sysread $term->{socket}, my $buf, 8192
…		…
851		1731
852	Set the filedescriptor (not handle) to watch.	1732	Set the filedescriptor (not handle) to watch.
853		1733
854	=item $iow = $iow->events ($eventmask)	1734	=item $iow = $iow->events ($eventmask)
855		1735
856	Set the event mask to watch. Bit #0 (value C<1>) enables watching for read	1736	Set the event mask to watch. The only allowed values are
857	data, Bit #1 (value C<2>) enables watching for write data.	1737	C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
		1738	together, or C<urxvt::EVENT_NONE>.
858		1739
859	=item $iow = $iow->start	1740	=item $iow = $iow->start
860		1741
861	Start watching for requested events on the given handle.	1742	Start watching for requested events on the given handle.
862		1743
…		…
873	This variable controls the verbosity level of the perl extension. Higher	1754	This variable controls the verbosity level of the perl extension. Higher
874	numbers indicate more verbose output.	1755	numbers indicate more verbose output.
875		1756
876	=over 4	1757	=over 4
877		1758
878	=item =0 - only fatal messages	1759	=item == 0 - fatal messages
879		1760
880	=item =3 - script loading and management	1761	=item >= 3 - script loading and management
881		1762
882	=item =10 - all events received	1763	=item >=10 - all called hooks
		1764
		1765	=item >=11 - hook reutrn values
883		1766
884	=back	1767	=back
885		1768
886	=head1 AUTHOR	1769	=head1 AUTHOR
887		1770

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