[ViewVC] Diff of: cvs/rxvt-unicode/src/urxvt.pm

Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.11 by root, Mon Jan 2 21:41:51 2006 UTC vs.
Revision 1.48 by root, Sat Jan 7 21:43:17 2006 UTC

…		…
		1	=encoding utf8
		2
1	=head1 NAME	3	=head1 NAME
2		4
3	@@RXVT_NAME@@perl - rxvt-unicode's embedded perl interpreter	5	@@RXVT_NAME@@perl - rxvt-unicode's embedded perl interpreter
4		6
5	=head1 SYNOPSIS	7	=head1 SYNOPSIS
15		17
16	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test	18	@@RXVT_NAME@@ --perl-lib $HOME -pe grab_test
17		19
18	=head1 DESCRIPTION	20	=head1 DESCRIPTION
19		21
20	Everytime a terminal object gets created, scripts specified via the	22	Everytime a terminal object gets created, extension scripts specified via
21	C<perl> resource are loaded and associated with it.	23	the C<perl> resource are loaded and associated with it.
22		24
23	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
24	thus must be encoded as UTF-8.	26	thus must be encoded as UTF-8.
25		27
26	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
27	scripts will be shared (But not enabled) for all terminals.	29	scripts will be shared (but not enabled) for all terminals.
		30
		31	=head2 Prepackaged Extensions
		32
		33	This section describes the extensiosn delivered with this version. You can
		34	find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
		35
		36	You can activate them like this:
		37
		38	@@RXVT_NAME@@ -pe <extensionname>
		39
		40	=over 4
		41
		42	=item selection
		43
		44	Intelligent selection. This extension tries to be more intelligent when
		45	the user extends selections (double-click). Right now, it tries to select
		46	urls and complete shell-quoted arguments, which is very convenient, too,
		47	if your F<ls> supports C<--quoting-style=shell>.
		48
		49	It also offers the following bindable event:
		50
		51	=over 4
		52
		53	=item rot13
		54
		55	Rot-13 the selection when activated. Used via keyboard trigger:
		56
		57	URxvt.keysym.C-M-r: perl:selection:rot13
		58
		59	=back
		60
		61	=item digital-clock
		62
		63	Displays a digital clock using the built-in overlay.
		64
		65	=item mark-urls
		66
		67	Uses per-line display filtering (C<on_line_update>) to underline urls.
		68
		69	=item block-graphics-to-ascii
		70
		71	A not very useful example of filtering all text output to the terminal,
		72	by replacing all line-drawing characters (U+2500 .. U+259F) by a
		73	similar-looking ascii character.
		74
		75	=item example-refresh-hooks
		76
		77	Displays a very simple digital clock in the upper right corner of the
		78	window. Illustrates overwriting the refresh callbacks to create your own
		79	overlays or changes.
		80
		81	=back
28		82
29	=head2 General API Considerations	83	=head2 General API Considerations
30		84
31	All objects (such as terminals, time watchers etc.) are typical	85	All objects (such as terminals, time watchers etc.) are typical
32	reference-to-hash objects. The hash can be used to store anything you	86	reference-to-hash objects. The hash can be used to store anything you
33	like. All members starting with an underscore (such as C<_ptr> or	87	like. All members starting with an underscore (such as C<_ptr> or
34	C<_hook>) are reserved for internal uses and must not be accessed or	88	C<_hook>) are reserved for internal uses and B<MUST NOT> be accessed or
35	modified).	89	modified).
36		90
37	When objects are destroyed on the C++ side, the perl object hashes are	91	When objects are destroyed on the C++ side, the perl object hashes are
38	emptied, so its best to store related objects such as time watchers and	92	emptied, so its best to store related objects such as time watchers and
39	the like inside the terminal object so they get destroyed as soon as the	93	the like inside the terminal object so they get destroyed as soon as the
40	terminal is destroyed.	94	terminal is destroyed.
41		95
		96	Argument names also often indicate the type of a parameter. Here are some
		97	hints on what they mean:
		98
		99	=over 4
		100
		101	=item $text
		102
		103	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.
		105
		106	=item $string
		107
		108	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
		110	encoding (often locale-specific) and binary data.
		111
		112	=item $octets
		113
		114	Either binary data or - more common - a text string encoded in a
		115	locale-specific way.
		116
		117	=back
		118
42	=head2 Hooks	119	=head2 Hooks
43		120
44	The following subroutines can be declared in loaded scripts, and will be called	121	The following subroutines can be declared in extension files, and will be
45	whenever the relevant event happens.	122	called whenever the relevant event happens.
		123
		124	The first argument passed to them is an object private to each terminal
		125	and extension package. You can call all C<urxvt::term> methods on it, but
		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.
46		130
47	All of them must return a boolean value. If it is true, then the event	131	All of them must return a boolean value. If it is true, then the event
48	counts as being I<consumed>, and the invocation of other hooks is skipped,	132	counts as being I<consumed>, and the invocation of other hooks is skipped,
49	and the relevant action might not be carried out by the C++ code.	133	and the relevant action might not be carried out by the C++ code.
50		134
…		…
53	=over 4	137	=over 4
54		138
55	=item on_init $term	139	=item on_init $term
56		140
57	Called after a new terminal object has been initialized, but before	141	Called after a new terminal object has been initialized, but before
58	windows are created or the command gets run.	142	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
		144	have not yet been determined. You can safely query and change resources,
		145	though.
59		146
60	=item on_reset $term	147	=item on_reset $term
61		148
62	Called after the screen is "reset" for any reason, such as resizing or	149	Called after the screen is "reset" for any reason, such as resizing or
63	control sequences. Here is where you can react on changes to size-related	150	control sequences. Here is where you can react on changes to size-related
…		…
83	requested from the server. The selection text can be queried and changed	170	requested from the server. The selection text can be queried and changed
84	by calling C<< $term->selection >>.	171	by calling C<< $term->selection >>.
85		172
86	Returning a true value aborts selection grabbing. It will still be hilighted.	173	Returning a true value aborts selection grabbing. It will still be hilighted.
87		174
88	=item on_focus_in $term	175	=item on_sel_extend $term
89		176
90	Called whenever the window gets the keyboard focus, before urxvt does	177	Called whenever the user tries to extend the selection (e.g. with a double
91	focus in processing.	178	click) and is either supposed to return false (normal operation), or
92		179	should extend the selection itelf and return true to suppress the built-in
93	=item on_focus_out $term
94
95	Called wheneever the window loses keyboard focus, before urxvt does focus
96	out processing.	180	processing.
		181
		182	See the F<selection> example extension.
97		183
98	=item on_view_change $term, $offset	184	=item on_view_change $term, $offset
99		185
100	Called whenever the view offset changes, i..e the user or program	186	Called whenever the view offset changes, i..e the user or program
101	scrolls. Offset C<0> means display the normal terminal, positive values	187	scrolls. Offset C<0> means display the normal terminal, positive values
…		…
112	number of lines that will be in the scrollback buffer.	198	number of lines that will be in the scrollback buffer.
113		199
114	=item on_tty_activity $term NYI	200	=item on_tty_activity $term NYI
115		201
116	Called whenever the program(s) running in the urxvt window send output.	202	Called whenever the program(s) running in the urxvt window send output.
		203
		204	=item on_osc_seq $term, $string
		205
		206	Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
		207	operating system command) is processed. Cursor position and other state
		208	information is up-to-date when this happens. For interoperability, the
		209	string should start with the extension name and a colon, to distinguish
		210	it from commands for other extensions, and this might be enforced in the
		211	future.
		212
		213	Be careful not ever to trust (in a security sense) the data you receive,
		214	as its source can not easily be controleld (e-mail content, messages from
		215	other users on the same system etc.).
		216
		217	=item on_add_lines $term, $string
		218
		219	Called whenever text is about to be output, with the text as argument. You
		220	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
		222	might be very slow, however, as your hook is called for B<all> text being
		223	output.
		224
		225	=item on_line_update $term, $row
		226
		227	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
		229	that are being shown will be filtered, and, due to performance reasons,
		230	not always immediately.
		231
		232	The row number is always the topmost row of the line if the line spans
		233	multiple rows.
		234
		235	Please note that, if you change the line, then the hook might get called
		236	later with the already-modified line (e.g. if unrelated parts change), so
		237	you cannot just toggle rendition bits, but only set them.
117		238
118	=item on_refresh_begin $term	239	=item on_refresh_begin $term
119		240
120	Called just before the screen gets redrawn. Can be used for overlay	241	Called just before the screen gets redrawn. Can be used for overlay
121	or similar effects by modify terminal contents in refresh_begin, and	242	or similar effects by modify terminal contents in refresh_begin, and
…		…
130		251
131	Called whenever the user presses a key combination that has a	252	Called whenever the user presses a key combination that has a
132	C<perl:string> action bound to it (see description of the B<keysym>	253	C<perl:string> action bound to it (see description of the B<keysym>
133	resource in the @@RXVT_NAME@@(1) manpage).	254	resource in the @@RXVT_NAME@@(1) manpage).
134		255
		256	=item on_focus_in $term
		257
		258	Called whenever the window gets the keyboard focus, before rxvt-unicode
		259	does focus in processing.
		260
		261	=item on_focus_out $term
		262
		263	Called wheneever the window loses keyboard focus, before rxvt-unicode does
		264	focus out processing.
		265
		266	=item on_key_press $term, $event, $octets
		267
		268	=item on_key_release $term, $event
		269
		270	=item on_button_press $term, $event
		271
		272	=item on_button_release $term, $event
		273
		274	=item on_motion_notify $term, $event
		275
		276	=item on_map_notify $term, $event
		277
		278	=item on_unmap_notify $term, $event
		279
		280	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.
		282
		283	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
		285	and column under the mouse cursor.
		286
		287	C<on_key_press> additionally receives the string rxvt-unicode would
		288	output, if any, in locale-specific encoding.
		289
		290	subwindow.
		291
		292	=back
		293
		294	=head2 Variables in the C<urxvt> Package
		295
		296	=over 4
		297
		298	=item $urxvt::TERM
		299
		300	The current terminal. This variable stores the current C<urxvt::term>
		301	object, whenever a callback/hook is executing.
		302
135	=back	303	=back
136		304
137	=head2 Functions in the C<urxvt> Package	305	=head2 Functions in the C<urxvt> Package
138		306
139	=over 4	307	=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.
140		316
141	=item urxvt::fatal $errormessage	317	=item urxvt::fatal $errormessage
142		318
143	Fatally aborts execution with the given error message. Avoid at all	319	Fatally aborts execution with the given error message. Avoid at all
144	costs! The only time this is acceptable is when the terminal process	320	costs! The only time this is acceptable is when the terminal process
…		…
155		331
156	=item $time = urxvt::NOW	332	=item $time = urxvt::NOW
157		333
158	Returns the "current time" (as per the event loop).	334	Returns the "current time" (as per the event loop).
159		335
		336	=item urxvt::CurrentTime
		337
		338	=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
		339	Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
		340	Button4Mask, Button5Mask, AnyModifier
		341
		342	Various constants for use in X events.
		343
		344	=back
		345
		346	=head2 RENDITION
		347
		348	Rendition bitsets contain information about colour, font, font styles and
		349	similar information for each screen cell.
		350
		351	The following "macros" deal with changes in rendition sets. You should
		352	never just create a bitset, you should always modify an existing one,
		353	as they contain important information required for correct operation of
		354	rxvt-unicode.
		355
		356	=over 4
		357
		358	=item $rend = urxvt::DEFAULT_RSTYLE
		359
		360	Returns the default rendition, as used when the terminal is starting up or
		361	being reset. Useful as a base to start when creating renditions.
		362
		363	=item $rend = urxvt::OVERLAY_RSTYLE
		364
		365	Return the rendition mask used for overlays by default.
		366
		367	=item $rendbit = urxvt::RS_Bold, RS_Italic, RS_Blink, RS_RVid, RS_Uline
		368
		369	Return the bit that enabled bold, italic, blink, reverse-video and
		370	underline, respectively. To enable such a style, just logically OR it into
		371	the bitset.
		372
		373	=item $foreground = urxvt::GET_BASEFG $rend
		374
		375	=item $background = urxvt::GET_BASEBG $rend
		376
		377	Return the foreground/background colour index, respectively.
		378
		379	=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour)
		380
		381	=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour)
		382
		383	Replace the foreground/background colour in the rendition mask with the
		384	specified one.
		385
		386	=item $value = urxvt::GET_CUSTOM ($rend)
		387
		388	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
		390	zero.
		391
		392	=item $rend = urxvt::SET_CUSTOM ($rend, $new_value)
		393
		394	Change the custom value.
		395
		396	=back
		397
160	=cut	398	=cut
161		399
162	package urxvt;	400	package urxvt;
163		401
		402	use utf8;
164	use strict;	403	use strict;
		404	use Scalar::Util ();
		405	use List::Util ();
165		406
166	our $term;	407	our $TERM;
167	our @HOOKNAME;	408	our @HOOKNAME;
168	our $LIBDIR;	409	our $LIBDIR;
169		410
170	BEGIN {	411	BEGIN {
171	urxvt->bootstrap;	412	urxvt->bootstrap;
…		…
196	my $name = $HOOKNAME[$htype];	437	my $name = $HOOKNAME[$htype];
197		438
198	my $ref = $pkg->can ("on_" . lc $name)	439	my $ref = $pkg->can ("on_" . lc $name)
199	or next;	440	or next;
200		441
201	$term->{_hook}[$htype]{$ref*1} = $ref;	442	$TERM->{_hook}[$htype]{$pkg} = $ref;
202	$hook_count[$htype]++	443	$hook_count[$htype]++
203	or set_should_invoke $htype, 1;	444	or set_should_invoke $htype, 1;
204	}	445	}
205	}	446	}
206		447
207	my $script_pkg = "script0000";	448	my $extension_pkg = "extension0000";
208	my %script_pkg;	449	my %extension_pkg;
209		450
210	# load a single script into its own package, once only	451	# load a single script into its own package, once only
211	sub script_package($) {	452	sub extension_package($) {
212	my ($path) = @_;	453	my ($path) = @_;
213		454
214	$script_pkg{$path} \|\|= do {	455	$extension_pkg{$path} \|\|= do {
215	my $pkg = "urxvt::" . ($script_pkg++);	456	my $pkg = "urxvt::" . ($extension_pkg++);
216		457
217	verbose 3, "loading script '$path' into package '$pkg'";	458	verbose 3, "loading extension '$path' into package '$pkg'";
218		459
219	open my $fh, "<:raw", $path	460	open my $fh, "<:raw", $path
220	or die "$path: $!";	461	or die "$path: $!";
221		462
222	my $source = "package $pkg; use strict; use utf8;\n"	463	my $source = "package $pkg; use strict; use utf8;\n"
		464	. "use base urxvt::term::proxy::;\n"
223	. "#line 1 \"$path\"\n{\n"	465	. "#line 1 \"$path\"\n{\n"
224	. (do { local $/; <$fh> })	466	. (do { local $/; <$fh> })
225	. "\n};\n1";	467	. "\n};\n1";
226		468
227	eval $source or die "$path: $@";	469	eval $source or die "$path: $@";
228		470
229	$pkg	471	$pkg
230	}	472	}
231	}	473	}
232		474
		475	our $retval; # return value for urxvt
		476
233	# called by the rxvt core	477	# called by the rxvt core
234	sub invoke {	478	sub invoke {
235	local $term = shift;	479	local $TERM = shift;
236	my $htype = shift;	480	my $htype = shift;
237		481
238	if ($htype == 0) { # INIT	482	if ($htype == 0) { # INIT
239	my @dirs = ((split /:/, $term->resource ("perl_lib")), "$LIBDIR/perl");	483	my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
240		484
241	for my $ext (split /:/, $term->resource ("perl_ext")) {	485	for my $ext (map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
242	my @files = grep -f $_, map "$_/$ext", @dirs;	486	my @files = grep -f $_, map "$_/$ext", @dirs;
243		487
244	if (@files) {	488	if (@files) {
245	register_package script_package $files[0];	489	register_package extension_package $files[0];
246	} else {	490	} else {
247	warn "perl extension '$ext' not found in perl library search path\n";	491	warn "perl extension '$ext' not found in perl library search path\n";
248	}	492	}
249	}	493	}
		494	}
250		495
		496	$retval = undef;
		497
		498	if (my $cb = $TERM->{_hook}[$htype]) {
		499	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
		500	if $verbosity >= 10;
		501
		502	keys %$cb;
		503
		504	while (my ($pkg, $cb) = each %$cb) {
		505	eval {
		506	$retval = $cb->(
		507	$TERM->{_pkg}{$pkg} \|\|= do {
		508	my $proxy = bless { }, $pkg;
		509	Scalar::Util::weaken ($proxy->{term} = $TERM);
		510	$proxy
		511	},
		512	@_,
		513	) and last;
		514	};
		515	warn $@ if $@;#d#
		516	}
		517	}
		518
251	} elsif ($htype == 1) { # DESTROY	519	if ($htype == 1) { # DESTROY
		520	# remove hooks if unused
252	if (my $hook = $term->{_hook}) {	521	if (my $hook = $TERM->{_hook}) {
253	for my $htype (0..$#$hook) {	522	for my $htype (0..$#$hook) {
254	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] \|\| {} }	523	$hook_count[$htype] -= scalar keys %{ $hook->[$htype] \|\| {} }
255	or set_should_invoke $htype, 0;	524	or set_should_invoke $htype, 0;
256	}	525	}
257	}	526	}
		527
		528	# clear package objects
		529	%$_ = () for values %{ $TERM->{_pkg} };
		530
		531	# clear package
		532	%$TERM = ();
258	}	533	}
259		534
260	my $cb = $term->{_hook}[$htype]	535	$retval
261	or return;
262
263	verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $term, @_) . ")"
264	if $verbosity >= 10;
265
266	while (my ($k, $v) = each %$cb) {
267	return 1 if $v->($term, @_);
268	}
269
270	0
271	}	536	}
272		537
273	=back	538	sub urxvt::term::proxy::AUTOLOAD {
		539	$urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/
		540	or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable";
		541
		542	eval qq{
		543	sub $urxvt::term::proxy::AUTOLOAD {
		544	my \$proxy = shift;
		545	\$proxy->{term}->$1 (\@_)
		546	}
		547	1
		548	} or die "FATAL: unable to compile method forwarder: $@";
		549
		550	goto &$urxvt::term::proxy::AUTOLOAD;
		551	}
		552
		553	sub urxvt::destroy_hook::DESTROY {
		554	${$_[0]}->();
		555	}
		556
		557	sub urxvt::destroy_hook(&) {
		558	bless \shift, urxvt::destroy_hook::
		559	}
274		560
275	=head2 The C<urxvt::term> Class	561	=head2 The C<urxvt::term> Class
276		562
277	=over 4	563	=over 4
		564
		565	=item $term->destroy
		566
		567	Destroy the terminal object (close the window, free resources etc.).
278		568
279	=item $value = $term->resource ($name[, $newval])	569	=item $value = $term->resource ($name[, $newval])
280		570
281	Returns the current resource value associated with a given name and	571	Returns the current resource value associated with a given name and
282	optionally sets a new value. Setting values is most useful in the C<init>	572	optionally sets a new value. Setting values is most useful in the C<init>
…		…
300	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont	590	answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
301	borderLess color cursorBlink cursorUnderline cutchars delete_key	591	borderLess color cursorBlink cursorUnderline cutchars delete_key
302	display_name embed ext_bwidth fade font geometry hold iconName	592	display_name embed ext_bwidth fade font geometry hold iconName
303	imFont imLocale inputMethod insecure int_bwidth intensityStyles	593	imFont imLocale inputMethod insecure int_bwidth intensityStyles
304	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier	594	italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier
305	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext	595	mouseWheelScrollPage name pastableTabs path perl_eval perl_ext_1 perl_ext_2
306	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd	596	perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd
307	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating	597	reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating
308	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput	598	scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput
309	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle	599	scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle
310	shade term_name title transparent transparent_all tripleclickwords	600	shade term_name title transparent transparent_all tripleclickwords
…		…
313	=cut	603	=cut
314		604
315	sub urxvt::term::resource($$;$) {	605	sub urxvt::term::resource($$;$) {
316	my ($self, $name) = (shift, shift);	606	my ($self, $name) = (shift, shift);
317	unshift @_, $self, $name, ($name =~ s/\s\+\s(\d+)$// ? $1 : 0);	607	unshift @_, $self, $name, ($name =~ s/\s\+\s(\d+)$// ? $1 : 0);
318	goto &urxvt::term::_resource;	608	&urxvt::term::_resource
319	}	609	}
		610
		611	=item $rend = $term->rstyle ([$new_rstyle])
		612
		613	Return and optionally change the current rendition. Text that is output by
		614	the terminal application will use this style.
		615
		616	=item ($row, $col) = $term->screen_cur ([$row, $col])
		617
		618	Return the current coordinates of the text cursor position and optionally
		619	set it (which is usually bad as applications don't expect that).
320		620
321	=item ($row, $col) = $term->selection_mark ([$row, $col])	621	=item ($row, $col) = $term->selection_mark ([$row, $col])
322		622
323	=item ($row, $col) = $term->selection_beg ([$row, $col])	623	=item ($row, $col) = $term->selection_beg ([$row, $col])
324		624
…		…
334		634
335	=item $oldtext = $term->selection ([$newtext])	635	=item $oldtext = $term->selection ([$newtext])
336		636
337	Return the current selection text and optionally replace it by C<$newtext>.	637	Return the current selection text and optionally replace it by C<$newtext>.
338		638
339	=item $term->scr_overlay ($x, $y, $text)	639	#=item $term->overlay ($x, $y, $text)
340		640	#
341	Create a simple multi-line overlay box. See the next method for details.	641	#Create a simple multi-line overlay box. See the next method for details.
		642	#
		643	#=cut
		644	#
		645	#sub urxvt::term::scr_overlay {
		646	# my ($self, $x, $y, $text) = @_;
		647	#
		648	# my @lines = split /\n/, $text;
		649	#
		650	# my $w = 0;
		651	# for (map $self->strwidth ($_), @lines) {
		652	# $w = $_ if $w < $_;
		653	# }
		654	#
		655	# $self->scr_overlay_new ($x, $y, $w, scalar @lines);
		656	# $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
		657	#}
		658
		659	=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
		660
		661	Create a new (empty) overlay at the given position with the given
		662	width/height. C<$rstyle> defines the initial rendition style
		663	(default: C<OVERLAY_RSTYLE>).
		664
		665	If C<$border> is C<2> (default), then a decorative border will be put
		666	around the box.
		667
		668	If either C<$x> or C<$y> is negative, then this is counted from the
		669	right/bottom side, respectively.
		670
		671	This method returns an urxvt::overlay object. The overlay will be visible
		672	as long as the perl object is referenced.
		673
		674	The methods currently supported on C<urxvt::overlay> objects are:
		675
		676	=over 4
		677
		678	=item $overlay->set ($x, $y, $text, $rend)
		679
		680	Similar to C<< $term->ROW_t >> and C<< $term->ROW_r >> in that it puts
		681	text in rxvt-unicode's special encoding and an array of rendition values
		682	at a specific position inside the overlay.
		683
		684	=item $overlay->hide
		685
		686	If visible, hide the overlay, but do not destroy it.
		687
		688	=item $overlay->show
		689
		690	If hidden, display the overlay again.
		691
		692	=back
		693
		694	=item $popup = $term->popup ($event)
		695
		696	Creates a new C<urxvt::popup> object that implements a popup menu. The
		697	C<$event> I<must> be the event causing the menu to pop up (a button event,
		698	currently).
342		699
343	=cut	700	=cut
344		701
345	sub urxvt::term::scr_overlay {	702	sub urxvt::term::popup {
346	my ($self, $x, $y, $text) = @_;	703	my ($self, $event) = @_;
347		704
348	my @lines = split /\n/, $text;	705	$self->grab ($event->{time}, 1)
		706	or return;
349		707
350	my $w = 0;	708	my $popup = bless {
351	for (map $self->strwidth ($_), @lines) {	709	term => $self,
352	$w = $_ if $w < $_;	710	event => $event,
353	}	711	}, urxvt::popup::;
354		712
355	$self->scr_overlay_new ($x, $y, $w, scalar @lines);	713	Scalar::Util::weaken $popup->{term};
356	$self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines;
357	}
358		714
359	=item $term->scr_overlay_new ($x, $y, $width, $height)	715	$self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
		716	Scalar::Util::weaken $self->{_destroy}{$popup};
360		717
361	Create a new (empty) overlay at the given position with the given	718	$popup
362	width/height. A border will be put around the box. If either C<$x> or	719	}
363	C<$y> is negative, then this is counted from the right/bottom side,
364	respectively.
365		720
366	=item $term->scr_overlay_off
367
368	Switch the overlay off again.
369
370	=item $term->scr_overlay_set_char ($x, $y, $char, $rend = OVERLAY_RSTYLE)
371
372	Put a single character (specified numerically) at the given overlay
373	position.
374
375	=item $term->scr_overlay_set ($x, $y, $text)
376
377	Write a string at the given position into the overlay.
378
379	=item $cellwidth = $term->strwidth $string	721	=item $cellwidth = $term->strwidth ($string)
380		722
381	Returns the number of screen-cells this string would need. Correctly	723	Returns the number of screen-cells this string would need. Correctly
382	accounts for wide and combining characters.	724	accounts for wide and combining characters.
383		725
384	=item $octets = $term->locale_encode $string	726	=item $octets = $term->locale_encode ($string)
385		727
386	Convert the given text string into the corresponding locale encoding.	728	Convert the given text string into the corresponding locale encoding.
387		729
388	=item $string = $term->locale_decode $octets	730	=item $string = $term->locale_decode ($octets)
389		731
390	Convert the given locale-encoded octets into a perl string.	732	Convert the given locale-encoded octets into a perl string.
391		733
		734	=item $term->scr_add_lines ($string)
		735
		736	Write the given text string to the screen, as if output by the application
		737	running inside the terminal. It may not contain command sequences (escape
		738	codes), but is free to use line feeds, carriage returns and tabs. The
		739	string is a normal text string, not in locale-dependent encoding.
		740
		741	Normally its not a good idea to use this function, as programs might be
		742	confused by changes in cursor position or scrolling. Its useful inside a
		743	C<on_add_lines> hook, though.
		744
		745	=item $term->cmd_parse ($octets)
		746
		747	Similar to C<scr_add_lines>, but the argument must be in the
		748	locale-specific encoding of the terminal and can contain command sequences
		749	(escape codes) that will be interpreted.
		750
392	=item $term->tt_write ($octets)	751	=item $term->tt_write ($octets)
393		752
394	Write the octets given in C<$data> to the tty (i.e. as program input). To	753	Write the octets given in C<$data> to the tty (i.e. as program input). To
395	pass characters instead of octets, you should convetr you strings first to	754	pass characters instead of octets, you should convert your strings first
396	the locale-specific encoding using C<< $term->locale_encode >>.	755	to the locale-specific encoding using C<< $term->locale_encode >>.
397		756
		757	=item $windowid = $term->parent
		758
		759	Return the window id of the toplevel window.
		760
		761	=item $windowid = $term->vt
		762
		763	Return the window id of the terminal window.
		764
		765	=item $window_width = $term->width
		766
		767	=item $window_height = $term->height
		768
		769	=item $font_width = $term->fwidth
		770
		771	=item $font_height = $term->fheight
		772
		773	=item $font_ascent = $term->fbase
		774
		775	=item $terminal_rows = $term->nrow
		776
		777	=item $terminal_columns = $term->ncol
		778
		779	=item $has_focus = $term->focus
		780
		781	=item $is_mapped = $term->mapped
		782
		783	=item $max_scrollback = $term->saveLines
		784
		785	=item $nrow_plus_saveLines = $term->total_rows
		786
		787	=item $lines_in_scrollback = $term->nsaved
		788
		789	Return various integers describing terminal characteristics.
		790
		791	=item $modifiermask = $term->ModLevel3Mask
		792
		793	=item $modifiermask = $term->ModMetaMask
		794
		795	=item $modifiermask = $term->ModNumLockMask
		796
		797	Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
		798	AltGr), the meta key (often Alt) and the num lock key, if applicable.
		799
		800	=item $view_start = $term->view_start ([$newvalue])
		801
		802	Returns the negative row number of the topmost line. Minimum value is
		803	C<0>, which displays the normal terminal contents. Larger values scroll
		804	this many lines into the scrollback buffer.
		805
		806	=item $term->want_refresh
		807
		808	Requests a screen refresh. At the next opportunity, rxvt-unicode will
		809	compare the on-screen display with its stored representation. If they
		810	differ, it redraws the differences.
		811
		812	Used after changing terminal contents to display them.
		813
		814	=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
		815
		816	Returns the text of the entire row with number C<$row_number>. Row C<0>
		817	is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost
		818	terminal line. The scrollback buffer starts at line C<-1> and extends to
		819	line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line
		820	is requested.
		821
		822	If C<$new_text> is specified, it will replace characters in the current
		823	line, starting at column C<$start_col> (default C<0>), which is useful
		824	to replace only parts of a line. The font index in the rendition will
		825	automatically be updated.
		826
		827	C<$text> is in a special encoding: tabs and wide characters that use more
		828	than one cell when displayed are padded with urxvt::NOCHAR characters
		829	(C<chr 65535>). Characters with combining characters and other characters
		830	that do not fit into the normal tetx encoding will be replaced with
		831	characters in the private use area.
		832
		833	You have to obey this encoding when changing text. The advantage is
		834	that C<substr> and similar functions work on screen cells and not on
		835	characters.
		836
		837	The methods C<< $term->special_encode >> and C<< $term->special_decode >>
		838	can be used to convert normal strings into this encoding and vice versa.
		839
		840	=item $rend = $term->ROW_r ($row_number[, $new_rend[, $start_col]])
		841
		842	Like C<< $term->ROW_t >>, but returns an arrayref with rendition
		843	bitsets. Rendition bitsets contain information about colour, font, font
		844	styles and similar information. See also C<< $term->ROW_t >>.
		845
		846	When setting rendition, the font mask will be ignored.
		847
		848	See the section on RENDITION, above.
		849
		850	=item $length = $term->ROW_l ($row_number[, $new_length])
		851
		852	Returns the number of screen cells that are in use ("the line
		853	length"). Unlike the urxvt core, this returns C<< $term->ncol >> if the
		854	line is joined with the following one.
		855
		856	=item $bool = $term->is_longer ($row_number)
		857
		858	Returns true if the row is part of a multiple-row logical "line" (i.e.
		859	joined with the following row), which means all characters are in use
		860	and it is continued on the next row (and possibly a continuation of the
		861	previous row(s)).
		862
		863	=item $line = $term->line ($row_number)
		864
		865	Create and return a new C<urxvt::line> object that stores information
		866	about the logical line that row C<$row_number> is part of. It supports the
		867	following methods:
		868
		869	=over 4
		870
		871	=item $text = $line->t ([$new_text])
		872
		873	Returns or replaces the full text of the line, similar to C<ROW_t>
		874
		875	=item $rend = $line->r ([$new_rend])
		876
		877	Returns or replaces the full rendition array of the line, similar to C<ROW_r>
		878
		879	=item $length = $line->l
		880
		881	Returns the length of the line in cells, similar to C<ROW_l>.
		882
		883	=item $rownum = $line->beg
		884
		885	=item $rownum = $line->end
		886
		887	Return the row number of the first/last row of the line, respectively.
		888
		889	=item $offset = $line->offset_of ($row, $col)
		890
		891	Returns the character offset of the given row\|col pair within the logical
		892	line.
		893
		894	=item ($row, $col) = $line->coord_of ($offset)
		895
		896	Translates a string offset into terminal coordinates again.
		897
398	=back	898	=back
		899
		900	=cut
		901
		902	sub urxvt::term::line {
		903	my ($self, $row) = @_;
		904
		905	my $maxrow = $self->nrow - 1;
		906
		907	my ($beg, $end) = ($row, $row);
		908
		909	--$beg while $self->ROW_is_longer ($beg - 1);
		910	++$end while $self->ROW_is_longer ($end) && $end < $maxrow;
		911
		912	bless {
		913	term => $self,
		914	beg => $beg,
		915	end => $end,
		916	ncol => $self->ncol,
		917	len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
		918	}, urxvt::line::
		919	}
		920
		921	sub urxvt::line::t {
		922	my ($self) = @_;
		923
		924	if (@_ > 1)
		925	{
		926	$self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		927	for $self->{beg} .. $self->{end};
		928	}
		929
		930	defined wantarray &&
		931	substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
		932	0, $self->{len}
		933	}
		934
		935	sub urxvt::line::r {
		936	my ($self) = @_;
		937
		938	if (@_ > 1)
		939	{
		940	$self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
		941	for $self->{beg} .. $self->{end};
		942	}
		943
		944	if (defined wantarray) {
		945	my $rend = [
		946	map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
		947	];
		948	$#$rend = $self->{len} - 1;
		949	return $rend;
		950	}
		951
		952	()
		953	}
		954
		955	sub urxvt::line::beg { $_[0]{beg} }
		956	sub urxvt::line::end { $_[0]{end} }
		957	sub urxvt::line::l { $_[0]{len} }
		958
		959	sub urxvt::line::offset_of {
		960	my ($self, $row, $col) = @_;
		961
		962	($row - $self->{beg}) * $self->{ncol} + $col
		963	}
		964
		965	sub urxvt::line::coord_of {
		966	my ($self, $offset) = @_;
		967
		968	use integer;
		969
		970	(
		971	$offset / $self->{ncol} + $self->{beg},
		972	$offset % $self->{ncol}
		973	)
		974	}
		975
		976	=item ($row, $col) = $line->coord_of ($offset)
		977	=item $text = $term->special_encode $string
		978
		979	Converts a perl string into the special encoding used by rxvt-unicode,
		980	where one character corresponds to one screen cell. See
		981	C<< $term->ROW_t >> for details.
		982
		983	=item $string = $term->special_decode $text
		984
		985	Converts rxvt-unicodes text reprsentation into a perl string. See
		986	C<< $term->ROW_t >> for details.
		987
		988	=back
		989
		990	=head2 The C<urxvt::popup> Class
		991
		992	=over 4
		993
		994	=cut
		995
		996	package urxvt::popup;
		997
		998	sub add_item {
		999	my ($self, $item) = @_;
		1000
		1001	push @{ $self->{item} }, $item;
		1002	}
		1003
		1004	sub add_button {
		1005	my ($self, $text, $cb) = @_;
		1006
		1007	$self->add_item ({ type => "button", text => "[ $text ]", activate => $cb,
		1008	render => sub { $_[0]{text} },
		1009	});
		1010	}
		1011
		1012	sub add_toggle {
		1013	my ($self, $text, $cb, $value) = @_;
		1014
		1015	$self->add_item ({ type => "button", text => " $text", value => $value,
		1016	render => sub { ($_[0]{value} ? "✔" : " ") . substr $_[0]{text}, 1 },
		1017	activate => sub { $cb->($_[0]{value} = !$_[0]{value}); },
		1018	});
		1019	}
		1020
		1021	sub show {
		1022	my ($self) = @_;
		1023
		1024	local $urxvt::popup::self = $self;
		1025
		1026	urxvt->new ("--perl-lib" => "", "--perl-ext-common" => "", "-pty-fd" => -1, "-sl" => 0, "-b" => 0,
		1027	"--transient-for" => $self->{term}->parent,
		1028	"-pe" => "urxvt-popup")
		1029	or die "unable to create popup window\n";
		1030	}
		1031
		1032	sub DESTROY {
		1033	my ($self) = @_;
		1034
		1035	$self->{term}->ungrab;
		1036	}
399		1037
400	=head2 The C<urxvt::timer> Class	1038	=head2 The C<urxvt::timer> Class
401		1039
402	This class implements timer watchers/events. Time is represented as a	1040	This class implements timer watchers/events. Time is represented as a
403	fractional number of seconds since the epoch. Example:	1041	fractional number of seconds since the epoch. Example:
404		1042
405	# create a digital clock display in upper right corner	1043	$term->{overlay} = $term->overlay (-1, 0, 8, 1, urxvt::OVERLAY_RSTYLE, 0);
406	$term->{timer} = urxvt::timer	1044	$term->{timer} = urxvt::timer
407	->new	1045	->new
408	->start (urxvt::NOW)	1046	->interval (1)
409	->cb (sub {	1047	->cb (sub {
410	my ($timer) = @_;
411	my $time = $timer->at;
412	$timer->start ($time + 1);
413	$self->scr_overlay (-1, 0,	1048	$term->{overlay}->set (0, 0,
414	POSIX::strftime "%H:%M:%S", localtime $time);	1049	sprintf "%2d:%02d:%02d", (localtime urxvt::NOW)[2,1,0]);
415	});	1050	});
416		1051
417	=over 4	1052	=over 4
418		1053
419	=item $timer = new urxvt::timer	1054	=item $timer = new urxvt::timer
420		1055
421	Create a new timer object in stopped state.	1056	Create a new timer object in started state. It is scheduled to fire
		1057	immediately.
422		1058
423	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })	1059	=item $timer = $timer->cb (sub { my ($timer) = @_; ... })
424		1060
425	Set the callback to be called when the timer triggers.	1061	Set the callback to be called when the timer triggers.
426		1062
…		…
429	Return the time this watcher will fire next.	1065	Return the time this watcher will fire next.
430		1066
431	=item $timer = $timer->set ($tstamp)	1067	=item $timer = $timer->set ($tstamp)
432		1068
433	Set the time the event is generated to $tstamp.	1069	Set the time the event is generated to $tstamp.
		1070
		1071	=item $timer = $timer->interval ($interval)
		1072
		1073	Normally (and when C<$interval> is C<0>), the timer will automatically
		1074	stop after it has fired once. If C<$interval> is non-zero, then the timer
		1075	is automatically rescheduled at the given intervals.
434		1076
435	=item $timer = $timer->start	1077	=item $timer = $timer->start
436		1078
437	Start the timer.	1079	Start the timer.
438		1080
…		…
501	This variable controls the verbosity level of the perl extension. Higher	1143	This variable controls the verbosity level of the perl extension. Higher
502	numbers indicate more verbose output.	1144	numbers indicate more verbose output.
503		1145
504	=over 4	1146	=over 4
505		1147
506	=item 0 - only fatal messages	1148	=item =0 - only fatal messages
507		1149
508	=item 3 - script loading and management	1150	=item =3 - script loading and management
509		1151
510	=item 10 - all events received	1152	=item =10 - all events received
511		1153
512	=back	1154	=back
513		1155
514	=head1 AUTHOR	1156	=head1 AUTHOR
515		1157

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Comparing rxvt-unicode/src/urxvt.pm (file contents): Revision 1.11 by root, Mon Jan 2 21:41:51 2006 UTC vs. Revision 1.48 by root, Sat Jan 7 21:43:17 2006 UTC

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Comparing rxvt-unicode/src/urxvt.pm (file contents):
Revision 1.11 by root, Mon Jan 2 21:41:51 2006 UTC vs.
Revision 1.48 by root, Sat Jan 7 21:43:17 2006 UTC