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Revision 1.23 by root, Tue Jan 3 19:42:53 2006 UTC vs.
Revision 1.115 by root, Fri Jan 20 15:57:21 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
22Everytime a terminal object gets created, scripts specified via the 22Everytime a terminal object gets created, extension scripts specified via
23C<perl> resource are loaded and associated with it. 23the C<perl> resource are loaded and associated with it.
24 24
25Scripts are compiled in a 'use strict' and 'use utf8' environment, and 25Scripts are compiled in a 'use strict' and 'use utf8' environment, and
26thus must be encoded as UTF-8. 26thus must be encoded as UTF-8.
27 27
28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where 28Each script will only ever be loaded once, even in @@RXVT_NAME@@d, where
29scripts will be shared (but not enabled) for all terminals. 29scripts will be shared (but not enabled) for all terminals.
30 30
31=head2 Prepackaged Extensions 31=head1 PREPACKAGED EXTENSIONS
32 32
33This section describes the extensiosn delivered with this version. You can 33This section describes the extensions delivered with this release. You can
34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>. 34find them in F<@@RXVT_LIBDIR@@/urxvt/perl/>.
35 35
36You can activate them like this: 36You can activate them like this:
37 37
38 @@RXVT_NAME@@ -pe <extensionname> 38 @@RXVT_NAME@@ -pe <extensionname>
39 39
40Or 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
44Intelligent selection. This etxension tries to be more intelligent when the user 48(More) intelligent selection. This extension tries to be more intelligent
45extends selections (double-click). 49when the user extends selections (double-click and further clicks). Right
50now, it tries to select words, urls and complete shell-quoted
51arguments, which is very convenient, too, if your F<ls> supports
52C<--quoting-style=shell>.
46 53
47It also offers the following bindable event: 54A double-click usually selects the word under the cursor, further clicks
55will enlarge the selection.
56
57The selection works by trying to match a number of regexes and displaying
58them in increasing order of length. You can add your own regexes by
59specifying resources of the form:
60
61 URxvt.selection.pattern-0: perl-regex
62 URxvt.selection.pattern-1: perl-regex
63 ...
64
65The index number (0, 1...) must not have any holes, and each regex must
66contain at least one pair of capturing parentheses, which will be used for
67the match. For example, the followign adds a regex that matches everything
68between two vertical bars:
69
70 URxvt.selection.pattern-0: \\|([^|]+)\\|
71
72You can look at the source of the selection extension to see more
73interesting uses, such as parsing a line from beginning to end.
74
75This extension also offers following bindable keyboard commands:
48 76
49=over 4 77=over 4
50 78
51=item rot13 79=item rot13
52 80
53Rot-13 the selection when activated. Used via keyboard trigger: 81Rot-13 the selection when activated. Used via keyboard trigger:
54 82
55 URxvt.keysym.C-M-r: perl:selection:rot13 83 URxvt.keysym.C-M-r: perl:selection:rot13
56 84
57=back 85=back
86
87=item option-popup (enabled by default)
88
89Binds a popup menu to Ctrl-Button2 that lets you toggle (some) options at
90runtime.
91
92=item selection-popup (enabled by default)
93
94Binds a popup menu to Ctrl-Button3 that lets you convert the selection
95text into various other formats/action (such as uri unescaping, perl
96evalution, web-browser starting etc.), depending on content.
97
98Other extensions can extend this popup menu by pushing a code reference
99onto C<@{ $term->{selection_popup_hook} }>, that is called whenever the
100popup is displayed.
101
102It's sole argument is the popup menu, which can be modified. The selection
103is in C<$_>, which can be used to decide wether to add something or not.
104It should either return nothing or a string and a code reference. The
105string will be used as button text and the code reference will be called
106when the button gets activated and should transform C<$_>.
107
108The following will add an entry C<a to b> that transforms all C<a>s in
109the selection to C<b>s, but only if the selection currently contains any
110C<a>s:
111
112 push @{ $self->{term}{selection_popup_hook} }, sub {
113 /a/ ? ("a to be" => sub { s/a/b/g }
114 : ()
115 };
116
117=item searchable-scrollback<hotkey> (enabled by default)
118
119Adds regex search functionality to the scrollback buffer, triggered
120by a hotkey (default: C<M-s>). While in search mode, normal terminal
121input/output is suspended and a regex is displayed at the bottom of the
122screen.
123
124Inputting characters appends them to the regex and continues incremental
125search. C<BackSpace> removes a character from the regex, C<Up> and C<Down>
126search upwards/downwards in the scrollback buffer, C<End> jumps to the
127bottom. C<Escape> leaves search mode and returns to the point where search
128was started, while C<Enter> or C<Return> stay at the current position and
129additionally stores the first match in the current line into the primary
130selection.
131
132=item selection-autotransform
133
134This selection allows you to do automatic transforms on a selection
135whenever a selection is made.
136
137It works by specifying perl snippets (most useful is a single C<s///>
138operator) that modify C<$_> as resources:
139
140 URxvt.selection-autotransform.0: transform
141 URxvt.selection-autotransform.1: transform
142 ...
143
144For example, the following will transform selections of the form
145C<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$1\\E\\x0d/
149
150And this example matches the same,but replaces it with vi-commands you can
151paste directly into your (vi :) editor:
152
153 URxvt.selection-autotransform.0: s/^([^:[:space:]]+(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
154
155Of course, this can be modified to suit your needs and your editor :)
156
157To expand the example above to typical perl error messages ("XXX at
158FILENAME line YYY."), you need a slightly more elaborate solution:
159
160 URxvt.selection.pattern-0: ( at .*? line \\d+[,.])
161 URxvt.selection-autotransform.0: s/^ at (.*?) line (\\d+)[,.]$/:e \\Q$1\E\\x0d:$2\\x0d/
162
163The first line tells the selection code to treat the unchanging part of
164every error message as a selection pattern, and the second line transforms
165the message into vi commands to load the file.
166
167=item tabbed
168
169This transforms the terminal into a tabbar with additional terminals, that
170is, it implements what is commonly refered to as "tabbed terminal". The topmost line
171displays a "[NEW]" button, which, when clicked, will add a new tab, followed by one
172button per tab.
173
174Clicking a button will activate that tab. Pressing Shift-Left and
175Shift-Right will switch to the tab left or right of the current one.
176
177=item mark-urls
178
179Uses per-line display filtering (C<on_line_update>) to underline urls and
180make them clickable. When middle-clicked, the program specified in the
181resource C<urlLauncher> (default C<x-www-browser>) will be started with
182the URL as first argument.
183
184=item automove-background
185
186This is basically a one-line extension that dynamically changes the background pixmap offset
187to the window position, in effect creating the same effect as pseudo transparency with
188a custom pixmap. No scaling is supported in this mode. Exmaple:
189
190 @@RXVT_NAME@@ -pixmap background.xpm -pe automove-background
191
192=item block-graphics-to-ascii
193
194A not very useful example of filtering all text output to the terminal,
195by replacing all line-drawing characters (U+2500 .. U+259F) by a
196similar-looking ascii character.
58 197
59=item digital-clock 198=item digital-clock
60 199
61Displays a digital clock using the built-in overlay. 200Displays a digital clock using the built-in overlay.
62 201
64 203
65Displays a very simple digital clock in the upper right corner of the 204Displays a very simple digital clock in the upper right corner of the
66window. Illustrates overwriting the refresh callbacks to create your own 205window. Illustrates overwriting the refresh callbacks to create your own
67overlays or changes. 206overlays or changes.
68 207
208=item selection-pastebin
209
210This is a little rarely useful extension that Uploads the selection as
211textfile to a remote site (or does other things). (The implementation is
212not currently secure for use in a multiuser environment as it writes to
213F</tmp> directly.).
214
215It listens to the C<selection-pastebin:remote-pastebin> keyboard command,
216i.e.
217
218 URxvt.keysym.C-M-e: perl:selection-pastebin:remote-pastebin
219
220Pressing this combination runs a command with C<%> replaced by the name of
221the textfile. This command can be set via a resource:
222
223 URxvt.selection-pastebin.cmd: rsync -apP % ruth:/var/www/www.ta-sa.org/files/txt/.
224
225And the default is likely not useful to anybody but the few people around
226here :)
227
228The name of the textfile is the hex encoded md5 sum of the selection, so
229the same content should lead to the same filename.
230
231After a successful upload the selection will be replaced by the text given
232in the C<selection-pastebin-url> resource (again, the % is the placeholder
233for the filename):
234
235 URxvt.selection-pastebin.url: http://www.ta-sa.org/files/txt/%
236
69=back 237=back
238
239=head1 API DOCUMENTATION
70 240
71=head2 General API Considerations 241=head2 General API Considerations
72 242
73All objects (such as terminals, time watchers etc.) are typical 243All objects (such as terminals, time watchers etc.) are typical
74reference-to-hash objects. The hash can be used to store anything you 244reference-to-hash objects. The hash can be used to store anything you
79When objects are destroyed on the C++ side, the perl object hashes are 249When objects are destroyed on the C++ side, the perl object hashes are
80emptied, so its best to store related objects such as time watchers and 250emptied, so its best to store related objects such as time watchers and
81the like inside the terminal object so they get destroyed as soon as the 251the like inside the terminal object so they get destroyed as soon as the
82terminal is destroyed. 252terminal is destroyed.
83 253
254Argument names also often indicate the type of a parameter. Here are some
255hints on what they mean:
256
257=over 4
258
259=item $text
260
261Rxvt-unicodes special way of encoding text, where one "unicode" character
262always represents one screen cell. See L<ROW_t> for a discussion of this format.
263
264=item $string
265
266A perl text string, with an emphasis on I<text>. It can store all unicode
267characters and is to be distinguished with text encoded in a specific
268encoding (often locale-specific) and binary data.
269
270=item $octets
271
272Either binary data or - more common - a text string encoded in a
273locale-specific way.
274
275=back
276
277=head2 Extension Objects
278
279Very perl extension is a perl class. A separate perl object is created
280for each terminal and each extension and passed as the first parameter to
281hooks. So extensions can use their C<$self> object without having to think
282about other extensions, with the exception of methods and members that
283begin with an underscore character C<_>: these are reserved for internal
284use.
285
286Although it isn't a C<urxvt::term> object, you can call all methods of the
287C<urxvt::term> class on this object.
288
289It has the following methods and data members:
290
291=over 4
292
293=item $urxvt_term = $self->{term}
294
295Returns the C<urxvt::term> object associated with this instance of the
296extension. This member I<must not> be changed in any way.
297
298=item $self->enable ($hook_name => $cb, [$hook_name => $cb..])
299
300Dynamically enable the given hooks (named without the C<on_> prefix) for
301this extension, replacing any previous hook. This is useful when you want
302to overwrite time-critical hooks only temporarily.
303
304=item $self->disable ($hook_name[, $hook_name..])
305
306Dynamically disable the given hooks.
307
308=back
309
84=head2 Hooks 310=head2 Hooks
85 311
86The following subroutines can be declared in loaded scripts, and will be 312The following subroutines can be declared in extension files, and will be
87called whenever the relevant event happens. 313called whenever the relevant event happens.
88 314
89The first argument passed to them is an object private to each terminal 315The first argument passed to them is an extension oject as described in
90and extension package. You can call all C<urxvt::term> methods on it, but 316the in the C<Extension Objects> section.
91its not a real C<urxvt::term> object. Instead, the real C<urxvt::term>
92object that is shared between all packages is stored in the C<term>
93member.
94 317
95All of them must return a boolean value. If it is true, then the event 318B<All> of these hooks must return a boolean value. If any of the called
96counts as being I<consumed>, and the invocation of other hooks is skipped, 319hooks returns true, then the event counts as being I<consumed>, and the
97and the relevant action might not be carried out by the C++ code. 320relevant action might not be carried out by the C++ code.
98 321
99When in doubt, return a false value (preferably C<()>). 322I<< When in doubt, return a false value (preferably C<()>). >>
100 323
101=over 4 324=over 4
102 325
103=item on_init $term 326=item on_init $term
104 327
105Called after a new terminal object has been initialized, but before 328Called after a new terminal object has been initialized, but before
106windows are created or the command gets run. 329windows are created or the command gets run. Most methods are unsafe to
330call or deliver senseless data, as terminal size and other characteristics
331have not yet been determined. You can safely query and change resources
332and options, though. For many purposes the C<on_start> hook is a better
333place.
334
335=item on_start $term
336
337Called at the very end of initialisation of a new terminal, just before
338trying to map (display) the toplevel and returning to the mainloop.
339
340=item on_destroy $term
341
342Called whenever something tries to destroy terminal, before doing anything
343yet. If this hook returns true, then destruction is skipped, but this is
344rarely a good idea.
107 345
108=item on_reset $term 346=item on_reset $term
109 347
110Called after the screen is "reset" for any reason, such as resizing or 348Called after the screen is "reset" for any reason, such as resizing or
111control sequences. Here is where you can react on changes to size-related 349control sequences. Here is where you can react on changes to size-related
112variables. 350variables.
113 351
114=item on_start $term 352=item on_child_start $term, $pid
115 353
116Called at the very end of initialisation of a new terminal, just before 354Called just after the child process has been C<fork>ed.
117returning to the mainloop. 355
356=item on_child_exit $term, $status
357
358Called just after the child process has exited. C<$status> is the status
359from C<waitpid>.
118 360
119=item on_sel_make $term, $eventtime 361=item on_sel_make $term, $eventtime
120 362
121Called whenever a selection has been made by the user, but before the 363Called whenever a selection has been made by the user, but before the
122selection text is copied, so changes to the beginning, end or type of the 364selection text is copied, so changes to the beginning, end or type of the
136=item on_sel_extend $term 378=item on_sel_extend $term
137 379
138Called whenever the user tries to extend the selection (e.g. with a double 380Called whenever the user tries to extend the selection (e.g. with a double
139click) and is either supposed to return false (normal operation), or 381click) and is either supposed to return false (normal operation), or
140should extend the selection itelf and return true to suppress the built-in 382should extend the selection itelf and return true to suppress the built-in
141processing. 383processing. This can happen multiple times, as long as the callback
384returns true, it will be called on every further click by the user and is
385supposed to enlarge the selection more and more, if possible.
142 386
143See the F<selection> example extension. 387See the F<selection> example extension.
144
145=item on_focus_in $term
146
147Called whenever the window gets the keyboard focus, before urxvt does
148focus in processing.
149
150=item on_focus_out $term
151
152Called wheneever the window loses keyboard focus, before urxvt does focus
153out processing.
154 388
155=item on_view_change $term, $offset 389=item on_view_change $term, $offset
156 390
157Called whenever the view offset changes, i..e the user or program 391Called whenever the view offset changes, i..e the user or program
158scrolls. Offset C<0> means display the normal terminal, positive values 392scrolls. Offset C<0> means display the normal terminal, positive values
166 400
167It is called before lines are scrolled out (so rows 0 .. min ($lines - 1, 401It is called before lines are scrolled out (so rows 0 .. min ($lines - 1,
168$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total 402$nrow - 1) represent the lines to be scrolled out). C<$saved> is the total
169number of lines that will be in the scrollback buffer. 403number of lines that will be in the scrollback buffer.
170 404
171=item on_tty_activity $term *NYI* 405=item on_osc_seq $term, $string
172 406
173Called whenever the program(s) running in the urxvt window send output. 407Called whenever the B<ESC ] 777 ; string ST> command sequence (OSC =
408operating system command) is processed. Cursor position and other state
409information is up-to-date when this happens. For interoperability, the
410string should start with the extension name and a colon, to distinguish
411it from commands for other extensions, and this might be enforced in the
412future.
413
414Be careful not ever to trust (in a security sense) the data you receive,
415as its source can not easily be controleld (e-mail content, messages from
416other users on the same system etc.).
417
418=item on_add_lines $term, $string
419
420Called whenever text is about to be output, with the text as argument. You
421can filter/change and output the text yourself by returning a true value
422and calling C<< $term->scr_add_lines >> yourself. Please note that this
423might be very slow, however, as your hook is called for B<all> text being
424output.
425
426=item on_tt_write $term, $octets
427
428Called whenever some data is written to the tty/pty and can be used to
429suppress or filter tty input.
430
431=item on_line_update $term, $row
432
433Called whenever a line was updated or changed. Can be used to filter
434screen output (e.g. underline urls or other useless stuff). Only lines
435that are being shown will be filtered, and, due to performance reasons,
436not always immediately.
437
438The row number is always the topmost row of the line if the line spans
439multiple rows.
440
441Please note that, if you change the line, then the hook might get called
442later with the already-modified line (e.g. if unrelated parts change), so
443you cannot just toggle rendition bits, but only set them.
174 444
175=item on_refresh_begin $term 445=item on_refresh_begin $term
176 446
177Called just before the screen gets redrawn. Can be used for overlay 447Called just before the screen gets redrawn. Can be used for overlay
178or similar effects by modify terminal contents in refresh_begin, and 448or similar effects by modify terminal contents in refresh_begin, and
187 457
188Called whenever the user presses a key combination that has a 458Called whenever the user presses a key combination that has a
189C<perl:string> action bound to it (see description of the B<keysym> 459C<perl:string> action bound to it (see description of the B<keysym>
190resource in the @@RXVT_NAME@@(1) manpage). 460resource in the @@RXVT_NAME@@(1) manpage).
191 461
462=item on_x_event $term, $event
463
464Called on every X event received on the vt window (and possibly other
465windows). Should only be used as a last resort. Most event structure
466members are not passed.
467
468=item on_focus_in $term
469
470Called whenever the window gets the keyboard focus, before rxvt-unicode
471does focus in processing.
472
473=item on_focus_out $term
474
475Called wheneever the window loses keyboard focus, before rxvt-unicode does
476focus out processing.
477
478=item on_configure_notify $term, $event
479
480=item on_key_press $term, $event, $keysym, $octets
481
482=item on_key_release $term, $event, $keysym
483
484=item on_button_press $term, $event
485
486=item on_button_release $term, $event
487
488=item on_motion_notify $term, $event
489
490=item on_map_notify $term, $event
491
492=item on_unmap_notify $term, $event
493
494Called whenever the corresponding X event is received for the terminal If
495the hook returns true, then the even will be ignored by rxvt-unicode.
496
497The event is a hash with most values as named by Xlib (see the XEvent
498manpage), with the additional members C<row> and C<col>, which are the row
499and column under the mouse cursor.
500
501C<on_key_press> additionally receives the string rxvt-unicode would
502output, if any, in locale-specific encoding.
503
504subwindow.
505
506=item on_client_message $term, $event
507
508=item on_wm_protocols $term, $event
509
510=item on_wm_delete_window $term, $event
511
512Called when various types of ClientMessage events are received (all with
513format=32, WM_PROTOCOLS or WM_PROTOCOLS:WM_DELETE_WINDOW).
514
192=back 515=back
193 516
517=cut
518
519package urxvt;
520
521use utf8;
522use strict;
523use Carp ();
524use Scalar::Util ();
525use List::Util ();
526
527our $VERSION = 1;
528our $TERM;
529our @TERM_INIT;
530our @TERM_EXT;
531our @HOOKNAME;
532our %HOOKTYPE = map +($HOOKNAME[$_] => $_), 0..$#HOOKNAME;
533our %OPTION;
534
535our $LIBDIR;
536our $RESNAME;
537our $RESCLASS;
538our $RXVTNAME;
539
194=head2 Variables in the C<urxvt> Package 540=head2 Variables in the C<urxvt> Package
195 541
196=over 4 542=over 4
197 543
544=item $urxvt::LIBDIR
545
546The rxvt-unicode library directory, where, among other things, the perl
547modules and scripts are stored.
548
549=item $urxvt::RESCLASS, $urxvt::RESCLASS
550
551The resource class and name rxvt-unicode uses to look up X resources.
552
553=item $urxvt::RXVTNAME
554
555The basename of the installed binaries, usually C<urxvt>.
556
198=item $urxvt::TERM 557=item $urxvt::TERM
199 558
200The current terminal. Whenever a callback/Hook is bein executed, this 559The current terminal. This variable stores the current C<urxvt::term>
201variable stores the current C<urxvt::term> object. 560object, whenever a callback/hook is executing.
561
562=item @urxvt::TERM_INIT
563
564All coderefs in this array will be called as methods of the next newly
565created C<urxvt::term> object (during the C<on_init> phase). The array
566gets cleared before the codereferences that were in it are being executed,
567so coderefs can push themselves onto it again if they so desire.
568
569This complements to the perl-eval commandline option, but gets executed
570first.
571
572=item @urxvt::TERM_EXT
573
574Works similar to C<@TERM_INIT>, but contains perl package/class names, which
575get registered as normal extensions after calling the hooks in C<@TERM_INIT>
576but before other extensions. Gets cleared just like C<@TERM_INIT>.
202 577
203=back 578=back
204 579
205=head2 Functions in the C<urxvt> Package 580=head2 Functions in the C<urxvt> Package
206 581
219that calls this function. 594that calls this function.
220 595
221Using this function has the advantage that its output ends up in the 596Using this function has the advantage that its output ends up in the
222correct place, e.g. on stderr of the connecting urxvtc client. 597correct place, e.g. on stderr of the connecting urxvtc client.
223 598
599Messages have a size limit of 1023 bytes currently.
600
224=item $time = urxvt::NOW 601=item $time = urxvt::NOW
225 602
226Returns the "current time" (as per the event loop). 603Returns the "current time" (as per the event loop).
604
605=item urxvt::CurrentTime
606
607=item urxvt::ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask,
608Mod3Mask, Mod4Mask, Mod5Mask, Button1Mask, Button2Mask, Button3Mask,
609Button4Mask, Button5Mask, AnyModifier
610
611=item urxvt::NoEventMask, KeyPressMask, KeyReleaseMask,
612ButtonPressMask, ButtonReleaseMask, EnterWindowMask, LeaveWindowMask,
613PointerMotionMask, PointerMotionHintMask, Button1MotionMask, Button2MotionMask,
614Button3MotionMask, Button4MotionMask, Button5MotionMask, ButtonMotionMask,
615KeymapStateMask, ExposureMask, VisibilityChangeMask, StructureNotifyMask,
616ResizeRedirectMask, SubstructureNotifyMask, SubstructureRedirectMask,
617FocusChangeMask, PropertyChangeMask, ColormapChangeMask, OwnerGrabButtonMask
618
619=item urxvt::KeyPress, KeyRelease, ButtonPress, ButtonRelease, MotionNotify,
620EnterNotify, LeaveNotify, FocusIn, FocusOut, KeymapNotify, Expose,
621GraphicsExpose, NoExpose, VisibilityNotify, CreateNotify, DestroyNotify,
622UnmapNotify, MapNotify, MapRequest, ReparentNotify, ConfigureNotify,
623ConfigureRequest, GravityNotify, ResizeRequest, CirculateNotify,
624CirculateRequest, PropertyNotify, SelectionClear, SelectionRequest,
625SelectionNotify, ColormapNotify, ClientMessage, MappingNotify
626
627Various constants for use in X calls and event processing.
227 628
228=back 629=back
229 630
230=head2 RENDITION 631=head2 RENDITION
231 632
258 659
259=item $background = urxvt::GET_BASEBG $rend 660=item $background = urxvt::GET_BASEBG $rend
260 661
261Return the foreground/background colour index, respectively. 662Return the foreground/background colour index, respectively.
262 663
263=item $rend = urxvt::SET_FGCOLOR ($rend, $new_colour) 664=item $rend = urxvt::SET_FGCOLOR $rend, $new_colour
264 665
265=item $rend = urxvt::SET_BGCOLOR ($rend, $new_colour) 666=item $rend = urxvt::SET_BGCOLOR $rend, $new_colour
266 667
267Replace the foreground/background colour in the rendition mask with the 668Replace the foreground/background colour in the rendition mask with the
268specified one. 669specified one.
269 670
270=item $value = urxvt::GET_CUSTOM ($rend) 671=item $value = urxvt::GET_CUSTOM $rend
271 672
272Return the "custom" value: Every rendition has 5 bits for use by 673Return the "custom" value: Every rendition has 5 bits for use by
273extensions. They can be set and changed as you like and are initially 674extensions. They can be set and changed as you like and are initially
274zero. 675zero.
275 676
276=item $rend = urxvt::SET_CUSTOM ($rend, $new_value) 677=item $rend = urxvt::SET_CUSTOM $rend, $new_value
277 678
278Change the custom value. 679Change the custom value.
279 680
280=back 681=back
281 682
282=cut 683=cut
283 684
284package urxvt;
285
286use strict;
287use Scalar::Util ();
288
289our $TERM;
290our @HOOKNAME;
291our $LIBDIR;
292
293BEGIN { 685BEGIN {
294 urxvt->bootstrap;
295
296 # overwrite perl's warn 686 # overwrite perl's warn
297 *CORE::GLOBAL::warn = sub { 687 *CORE::GLOBAL::warn = sub {
298 my $msg = join "", @_; 688 my $msg = join "", @_;
299 $msg .= "\n" 689 $msg .= "\n"
300 unless $msg =~ /\n$/; 690 unless $msg =~ /\n$/;
301 urxvt::warn ($msg); 691 urxvt::warn ($msg);
302 }; 692 };
303} 693}
304 694
305my @hook_count;
306my $verbosity = $ENV{URXVT_PERL_VERBOSITY}; 695my $verbosity = $ENV{URXVT_PERL_VERBOSITY};
307 696
308sub verbose { 697sub verbose {
309 my ($level, $msg) = @_; 698 my ($level, $msg) = @_;
310 warn "$msg\n" if $level <= $verbosity; 699 warn "$msg\n" if $level <= $verbosity;
311} 700}
312 701
313# find on_xxx subs in the package and register them 702my %extension_pkg;
314# as hooks
315sub register_package($) {
316 my ($pkg) = @_;
317
318 for my $htype (0.. $#HOOKNAME) {
319 my $name = $HOOKNAME[$htype];
320
321 my $ref = $pkg->can ("on_" . lc $name)
322 or next;
323
324 $TERM->{_hook}[$htype]{$pkg} = $ref;
325 $hook_count[$htype]++
326 or set_should_invoke $htype, 1;
327 }
328}
329
330my $script_pkg = "script0000";
331my %script_pkg;
332 703
333# load a single script into its own package, once only 704# load a single script into its own package, once only
334sub script_package($) { 705sub extension_package($) {
335 my ($path) = @_; 706 my ($path) = @_;
336 707
337 $script_pkg{$path} ||= do { 708 $extension_pkg{$path} ||= do {
338 my $pkg = "urxvt::" . ($script_pkg++); 709 $path =~ /([^\/\\]+)$/;
710 my $pkg = $1;
711 $pkg =~ s/[^[:word:]]/_/g;
712 $pkg = "urxvt::ext::$pkg";
339 713
340 verbose 3, "loading script '$path' into package '$pkg'"; 714 verbose 3, "loading extension '$path' into package '$pkg'";
341 715
342 open my $fh, "<:raw", $path 716 open my $fh, "<:raw", $path
343 or die "$path: $!"; 717 or die "$path: $!";
344 718
719 my $source =
345 my $source = "package $pkg; use strict; use utf8;\n" 720 "package $pkg; use strict; use utf8;\n"
346 . "#line 1 \"$path\"\n{\n" 721 . "#line 1 \"$path\"\n{\n"
347 . (do { local $/; <$fh> }) 722 . (do { local $/; <$fh> })
348 . "\n};\n1"; 723 . "\n};\n1";
349 724
725 eval $source
350 eval $source or die "$path: $@"; 726 or die "$path: $@";
351 727
352 $pkg 728 $pkg
353 } 729 }
354} 730}
731
732our $retval; # return value for urxvt
355 733
356# called by the rxvt core 734# called by the rxvt core
357sub invoke { 735sub invoke {
358 local $TERM = shift; 736 local $TERM = shift;
359 my $htype = shift; 737 my $htype = shift;
360 738
361 if ($htype == 0) { # INIT 739 if ($htype == 0) { # INIT
362 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl"); 740 my @dirs = ((split /:/, $TERM->resource ("perl_lib")), "$LIBDIR/perl");
741
742 my %ext_arg;
363 743
364 for my $ext (split /:/, $TERM->resource ("perl_ext")) { 744 {
745 my @init = @TERM_INIT;
746 @TERM_INIT = ();
747 $_->($TERM) for @init;
748 my @pkg = @TERM_EXT;
749 @TERM_EXT = ();
750 $TERM->register_package ($_) for @pkg;
751 }
752
753 for (grep $_, map { split /,/, $TERM->resource ("perl_ext_$_") } 1, 2) {
754 if ($_ eq "default") {
755 $ext_arg{$_} ||= [] for qw(selection option-popup selection-popup searchable-scrollback);
756 } elsif (/^-(.*)$/) {
757 delete $ext_arg{$1};
758 } elsif (/^([^<]+)<(.*)>$/) {
759 push @{ $ext_arg{$1} }, $2;
760 } else {
761 $ext_arg{$_} ||= [];
762 }
763 }
764
765 while (my ($ext, $argv) = each %ext_arg) {
365 my @files = grep -f $_, map "$_/$ext", @dirs; 766 my @files = grep -f $_, map "$_/$ext", @dirs;
366 767
367 if (@files) { 768 if (@files) {
368 register_package script_package $files[0]; 769 $TERM->register_package (extension_package $files[0], $argv);
369 } else { 770 } else {
370 warn "perl extension '$ext' not found in perl library search path\n"; 771 warn "perl extension '$ext' not found in perl library search path\n";
371 } 772 }
372 } 773 }
373 774
374 } elsif ($htype == 1) { # DESTROY 775 eval "#line 1 \"--perl-eval resource/argument\"\n" . $TERM->resource ("perl_eval");
776 warn $@ if $@;
777 }
778
779 $retval = undef;
780
375 if (my $hook = $TERM->{_hook}) { 781 if (my $cb = $TERM->{_hook}[$htype]) {
376 for my $htype (0..$#$hook) { 782 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")"
377 $hook_count[$htype] -= scalar keys %{ $hook->[$htype] || {} } 783 if $verbosity >= 10;
378 or set_should_invoke $htype, 0; 784
785 keys %$cb;
786
787 while (my ($pkg, $cb) = each %$cb) {
788 my $retval_ = eval { $cb->($TERM->{_pkg}{$pkg}, @_) };
789 $retval ||= $retval_;
790
791 if ($@) {
792 $TERM->ungrab; # better to lose the grab than the session
793 warn $@;
379 } 794 }
380 } 795 }
796
797 verbose 11, "$HOOKNAME[$htype] returning <$retval>"
798 if $verbosity >= 11;
381 } 799 }
382 800
383 my $cb = $TERM->{_hook}[$htype] 801 if ($htype == 1) { # DESTROY
384 or return; 802 # clear package objects
803 %$_ = () for values %{ $TERM->{_pkg} };
385 804
386 verbose 10, "$HOOKNAME[$htype] (" . (join ", ", $TERM, @_) . ")" 805 # clear package
387 if $verbosity >= 10; 806 %$TERM = ();
388
389 while (my ($pkg, $cb) = each %$cb) {
390 return 1
391 if $cb->(
392 $TERM->{$pkg} ||= do {
393 my $proxy = bless { }, urxvt::term::proxy::;
394 Scalar::Util::weaken ($proxy->{term} = $TERM);
395 $proxy
396 },
397 @_,
398 );
399 } 807 }
400 808
809 $retval
810}
811
812# urxvt::term::extension
813
814package urxvt::term::extension;
815
816sub enable {
817 my ($self, %hook) = @_;
818 my $pkg = $self->{_pkg};
819
820 while (my ($name, $cb) = each %hook) {
821 my $htype = $HOOKTYPE{uc $name};
822 defined $htype
823 or Carp::croak "unsupported hook type '$name'";
824
825 $self->set_should_invoke ($htype, +1)
826 unless exists $self->{term}{_hook}[$htype]{$pkg};
827
828 $self->{term}{_hook}[$htype]{$pkg} = $cb;
401 0 829 }
402} 830}
403 831
404sub urxvt::term::proxy::AUTOLOAD { 832sub disable {
405 $urxvt::term::proxy::AUTOLOAD =~ /:([^:]+)$/ 833 my ($self, @hook) = @_;
834 my $pkg = $self->{_pkg};
835
836 for my $name (@hook) {
837 my $htype = $HOOKTYPE{uc $name};
838 defined $htype
839 or Carp::croak "unsupported hook type '$name'";
840
841 $self->set_should_invoke ($htype, -1)
842 if delete $self->{term}{_hook}[$htype]{$pkg};
843 }
844}
845
846our $AUTOLOAD;
847
848sub AUTOLOAD {
849 $AUTOLOAD =~ /:([^:]+)$/
406 or die "FATAL: \$AUTOLOAD '$urxvt::term::proxy::AUTOLOAD' unparsable"; 850 or die "FATAL: \$AUTOLOAD '$AUTOLOAD' unparsable";
407 851
408 eval qq{ 852 eval qq{
409 sub $urxvt::term::proxy::AUTOLOAD { 853 sub $AUTOLOAD {
410 unshift \@_, shift->{term}; 854 my \$proxy = shift;
411 goto &urxvt::term::$1; 855 \$proxy->{term}->$1 (\@_)
412 } 856 }
413 1 857 1
414 } or die "FATAL: unable to compile method forwarder: $@"; 858 } or die "FATAL: unable to compile method forwarder: $@";
415 859
416 goto &$urxvt::term::proxy::AUTOLOAD; 860 goto &$AUTOLOAD;
417} 861}
862
863sub DESTROY {
864 # nop
865}
866
867# urxvt::destroy_hook
868
869sub urxvt::destroy_hook::DESTROY {
870 ${$_[0]}->();
871}
872
873sub urxvt::destroy_hook(&) {
874 bless \shift, urxvt::destroy_hook::
875}
876
877package urxvt::anyevent;
878
879=head2 The C<urxvt::anyevent> Class
880
881The sole purpose of this class is to deliver an interface to the
882C<AnyEvent> module - any module using it will work inside urxvt without
883further programming. The only exception is that you cannot wait on
884condition variables, but non-blocking condvar use is ok. What this means
885is that you cannot use blocking APIs, but the non-blocking variant should
886work.
887
888=cut
889
890our $VERSION = 1;
891
892$INC{"urxvt/anyevent.pm"} = 1; # mark us as there
893push @AnyEvent::REGISTRY, [urxvt => urxvt::anyevent::];
894
895sub timer {
896 my ($class, %arg) = @_;
897
898 my $cb = $arg{cb};
899
900 urxvt::timer
901 ->new
902 ->start (urxvt::NOW + $arg{after})
903 ->cb (sub {
904 $_[0]->stop; # need to cancel manually
905 $cb->();
906 })
907}
908
909sub io {
910 my ($class, %arg) = @_;
911
912 my $cb = $arg{cb};
913
914 bless [$arg{fh}, urxvt::iow
915 ->new
916 ->fd (fileno $arg{fh})
917 ->events (($arg{poll} =~ /r/ ? 1 : 0)
918 | ($arg{poll} =~ /w/ ? 2 : 0))
919 ->start
920 ->cb (sub {
921 $cb->(($_[1] & 1 ? 'r' : '')
922 . ($_[1] & 2 ? 'w' : ''));
923 })],
924 urxvt::anyevent::
925}
926
927sub DESTROY {
928 $_[0][1]->stop;
929}
930
931sub condvar {
932 bless \my $flag, urxvt::anyevent::condvar::
933}
934
935sub urxvt::anyevent::condvar::broadcast {
936 ${$_[0]}++;
937}
938
939sub urxvt::anyevent::condvar::wait {
940 unless (${$_[0]}) {
941 Carp::croak "AnyEvent->condvar blocking wait unsupported in urxvt, use a non-blocking API";
942 }
943}
944
945package urxvt::term;
418 946
419=head2 The C<urxvt::term> Class 947=head2 The C<urxvt::term> Class
420 948
421=over 4 949=over 4
950
951=cut
952
953# find on_xxx subs in the package and register them
954# as hooks
955sub register_package {
956 my ($self, $pkg, $argv) = @_;
957
958 no strict 'refs';
959
960 urxvt::verbose 6, "register package $pkg to $self";
961
962 @{"$pkg\::ISA"} = urxvt::term::extension::;
963
964 my $proxy = bless {
965 _pkg => $pkg,
966 argv => $argv,
967 }, $pkg;
968 Scalar::Util::weaken ($proxy->{term} = $self);
969
970 $self->{_pkg}{$pkg} = $proxy;
971
972 for my $name (@HOOKNAME) {
973 if (my $ref = $pkg->can ("on_" . lc $name)) {
974 $proxy->enable ($name => $ref);
975 }
976 }
977}
978
979=item $term = new urxvt::term $envhashref, $rxvtname, [arg...]
980
981Creates a new terminal, very similar as if you had started it with system
982C<$rxvtname, arg...>. C<$envhashref> must be a reference to a C<%ENV>-like
983hash which defines the environment of the new terminal.
984
985Croaks (and probably outputs an error message) if the new instance
986couldn't be created. Returns C<undef> if the new instance didn't
987initialise perl, and the terminal object otherwise. The C<init> and
988C<start> hooks will be called during this call.
989
990=cut
991
992sub new {
993 my ($class, $env, @args) = @_;
994
995 _new ([ map "$_=$env->{$_}", keys %$env ], @args);
996}
997
998=item $term->destroy
999
1000Destroy the terminal object (close the window, free resources
1001etc.). Please note that @@RXVT_NAME@@ will not exit as long as any event
1002watchers (timers, io watchers) are still active.
1003
1004=item $term->exec_async ($cmd[, @args])
1005
1006Works like the combination of the C<fork>/C<exec> builtins, which executes
1007("starts") programs in the background. This function takes care of setting
1008the user environment before exec'ing the command (e.g. C<PATH>) and should
1009be preferred over explicit calls to C<exec> or C<system>.
1010
1011Returns the pid of the subprocess or C<undef> on error.
1012
1013=cut
1014
1015sub exec_async {
1016 my $self = shift;
1017
1018 my $pid = fork;
1019
1020 return $pid
1021 if !defined $pid or $pid;
1022
1023 %ENV = %{ $self->env };
1024
1025 exec @_;
1026 urxvt::_exit 255;
1027}
1028
1029=item $isset = $term->option ($optval[, $set])
1030
1031Returns true if the option specified by C<$optval> is enabled, and
1032optionally change it. All option values are stored by name in the hash
1033C<%urxvt::OPTION>. Options not enabled in this binary are not in the hash.
1034
1035Here is a a likely non-exhaustive list of option names, please see the
1036source file F</src/optinc.h> to see the actual list:
1037
1038 borderLess console cursorBlink cursorUnderline hold iconic insecure
1039 intensityStyles jumpScroll loginShell mapAlert meta8 mouseWheelScrollPage
1040 override-redirect pastableTabs pointerBlank reverseVideo scrollBar
1041 scrollBar_floating scrollBar_right scrollTtyKeypress scrollTtyOutput
1042 scrollWithBuffer secondaryScreen secondaryScroll skipBuiltinGlyphs
1043 transparent tripleclickwords utmpInhibit visualBell
422 1044
423=item $value = $term->resource ($name[, $newval]) 1045=item $value = $term->resource ($name[, $newval])
424 1046
425Returns the current resource value associated with a given name and 1047Returns the current resource value associated with a given name and
426optionally sets a new value. Setting values is most useful in the C<init> 1048optionally sets a new value. Setting values is most useful in the C<init>
436 1058
437Please note that resource strings will currently only be freed when the 1059Please note that resource strings will currently only be freed when the
438terminal is destroyed, so changing options frequently will eat memory. 1060terminal is destroyed, so changing options frequently will eat memory.
439 1061
440Here is a a likely non-exhaustive list of resource names, not all of which 1062Here is a a likely non-exhaustive list of resource names, not all of which
441are supported in every build, please see the source to see the actual 1063are supported in every build, please see the source file F</src/rsinc.h>
442list: 1064to see the actual list:
443 1065
444 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont 1066 answerbackstring backgroundPixmap backspace_key boldFont boldItalicFont
445 borderLess color cursorBlink cursorUnderline cutchars delete_key 1067 borderLess color cursorBlink cursorUnderline cutchars delete_key
446 display_name embed ext_bwidth fade font geometry hold iconName 1068 display_name embed ext_bwidth fade font geometry hold iconName
447 imFont imLocale inputMethod insecure int_bwidth intensityStyles 1069 imFont imLocale inputMethod insecure int_bwidth intensityStyles
448 italicFont jumpScroll lineSpace loginShell mapAlert menu meta8 modifier 1070 italicFont jumpScroll lineSpace loginShell mapAlert meta8 modifier
449 mouseWheelScrollPage name pastableTabs path perl_eval perl_ext 1071 mouseWheelScrollPage name override_redirect pastableTabs path perl_eval
450 perl_lib pointerBlank pointerBlankDelay preeditType print_pipe pty_fd 1072 perl_ext_1 perl_ext_2 perl_lib pointerBlank pointerBlankDelay
451 reverseVideo saveLines scrollBar scrollBar_align scrollBar_floating 1073 preeditType print_pipe pty_fd reverseVideo saveLines scrollBar
452 scrollBar_right scrollBar_thickness scrollTtyKeypress scrollTtyOutput 1074 scrollBar_align scrollBar_floating scrollBar_right scrollBar_thickness
453 scrollWithBuffer scrollstyle secondaryScreen secondaryScroll selectstyle 1075 scrollTtyKeypress scrollTtyOutput scrollWithBuffer scrollstyle
454 shade term_name title transparent transparent_all tripleclickwords 1076 secondaryScreen secondaryScroll selectstyle shade term_name title
455 utmpInhibit visualBell 1077 transient_for transparent transparent_all tripleclickwords utmpInhibit
1078 visualBell
456 1079
457=cut 1080=cut
458 1081
459sub urxvt::term::resource($$;$) { 1082sub resource($$;$) {
460 my ($self, $name) = (shift, shift); 1083 my ($self, $name) = (shift, shift);
461 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0); 1084 unshift @_, $self, $name, ($name =~ s/\s*\+\s*(\d+)$// ? $1 : 0);
462 goto &urxvt::term::_resource; 1085 &urxvt::term::_resource
463} 1086}
1087
1088=item $value = $term->x_resource ($pattern)
1089
1090Returns the X-Resource for the given pattern, excluding the program or
1091class name, i.e. C<< $term->x_resource ("boldFont") >> should return the
1092same value as used by this instance of rxvt-unicode. Returns C<undef> if no
1093resource with that pattern exists.
1094
1095This method should only be called during the C<on_start> hook, as there is
1096only one resource database per display, and later invocations might return
1097the wrong resources.
1098
1099=item $success = $term->parse_keysym ($keysym_spec, $command_string)
1100
1101Adds a keymap translation exactly as specified via a resource. See the
1102C<keysym> resource in the @@RXVT_NAME@@(1) manpage.
1103
1104=item $rend = $term->rstyle ([$new_rstyle])
1105
1106Return and optionally change the current rendition. Text that is output by
1107the terminal application will use this style.
1108
1109=item ($row, $col) = $term->screen_cur ([$row, $col])
1110
1111Return the current coordinates of the text cursor position and optionally
1112set it (which is usually bad as applications don't expect that).
464 1113
465=item ($row, $col) = $term->selection_mark ([$row, $col]) 1114=item ($row, $col) = $term->selection_mark ([$row, $col])
466 1115
467=item ($row, $col) = $term->selection_beg ([$row, $col]) 1116=item ($row, $col) = $term->selection_beg ([$row, $col])
468 1117
469=item ($row, $col) = $term->selection_end ([$row, $col]) 1118=item ($row, $col) = $term->selection_end ([$row, $col])
470 1119
471Return the current values of the selection mark, begin or end positions, 1120Return the current values of the selection mark, begin or end positions,
472and optionally set them to new values. 1121and optionally set them to new values.
473 1122
1123=item $term->selection_make ($eventtime[, $rectangular])
1124
1125Tries to make a selection as set by C<selection_beg> and
1126C<selection_end>. If C<$rectangular> is true (default: false), a
1127rectangular selection will be made. This is the prefered function to make
1128a selection.
1129
474=item $success = $term->selection_grab ($eventtime) 1130=item $success = $term->selection_grab ($eventtime)
475 1131
476Try to request the primary selection from the server (for example, as set 1132Try to request the primary selection text from the server (for example, as
477by the next method). 1133set by the next method). No visual feedback will be given. This function
1134is mostly useful from within C<on_sel_grab> hooks.
478 1135
479=item $oldtext = $term->selection ([$newtext]) 1136=item $oldtext = $term->selection ([$newtext])
480 1137
481Return the current selection text and optionally replace it by C<$newtext>. 1138Return the current selection text and optionally replace it by C<$newtext>.
482 1139
483#=item $term->overlay ($x, $y, $text) 1140=item $term->overlay_simple ($x, $y, $text)
484# 1141
485#Create a simple multi-line overlay box. See the next method for details. 1142Create a simple multi-line overlay box. See the next method for details.
486# 1143
487#=cut 1144=cut
488 1145
489sub urxvt::term::scr_overlay { 1146sub overlay_simple {
490die;
491 my ($self, $x, $y, $text) = @_; 1147 my ($self, $x, $y, $text) = @_;
492 1148
493 my @lines = split /\n/, $text; 1149 my @lines = split /\n/, $text;
494 1150
495 my $w = 0; 1151 my $w = List::Util::max map $self->strwidth ($_), @lines;
496 for (map $self->strwidth ($_), @lines) {
497 $w = $_ if $w < $_;
498 }
499 1152
500 $self->scr_overlay_new ($x, $y, $w, scalar @lines); 1153 my $overlay = $self->overlay ($x, $y, $w, scalar @lines);
501 $self->scr_overlay_set (0, $_, $lines[$_]) for 0.. $#lines; 1154 $overlay->set (0, $_, $lines[$_]) for 0.. $#lines;
1155
1156 $overlay
502} 1157}
503 1158
504=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]]) 1159=item $term->overlay ($x, $y, $width, $height[, $rstyle[, $border]])
505 1160
506Create a new (empty) overlay at the given position with the given 1161Create a new (empty) overlay at the given position with the given
534 1189
535If hidden, display the overlay again. 1190If hidden, display the overlay again.
536 1191
537=back 1192=back
538 1193
1194=item $popup = $term->popup ($event)
1195
1196Creates a new C<urxvt::popup> object that implements a popup menu. The
1197C<$event> I<must> be the event causing the menu to pop up (a button event,
1198currently).
1199
1200=cut
1201
1202sub popup {
1203 my ($self, $event) = @_;
1204
1205 $self->grab ($event->{time}, 1)
1206 or return;
1207
1208 my $popup = bless {
1209 term => $self,
1210 event => $event,
1211 }, urxvt::popup::;
1212
1213 Scalar::Util::weaken $popup->{term};
1214
1215 $self->{_destroy}{$popup} = urxvt::destroy_hook { $popup->{popup}->destroy };
1216 Scalar::Util::weaken $self->{_destroy}{$popup};
1217
1218 $popup
1219}
1220
539=item $cellwidth = $term->strwidth $string 1221=item $cellwidth = $term->strwidth ($string)
540 1222
541Returns the number of screen-cells this string would need. Correctly 1223Returns the number of screen-cells this string would need. Correctly
542accounts for wide and combining characters. 1224accounts for wide and combining characters.
543 1225
544=item $octets = $term->locale_encode $string 1226=item $octets = $term->locale_encode ($string)
545 1227
546Convert the given text string into the corresponding locale encoding. 1228Convert the given text string into the corresponding locale encoding.
547 1229
548=item $string = $term->locale_decode $octets 1230=item $string = $term->locale_decode ($octets)
549 1231
550Convert the given locale-encoded octets into a perl string. 1232Convert the given locale-encoded octets into a perl string.
1233
1234=item $term->scr_xor_span ($beg_row, $beg_col, $end_row, $end_col[, $rstyle])
1235
1236XORs the rendition values in the given span with the provided value
1237(default: C<RS_RVid>), which I<MUST NOT> contain font styles. Useful in
1238refresh hooks to provide effects similar to the selection.
1239
1240=item $term->scr_xor_rect ($beg_row, $beg_col, $end_row, $end_col[, $rstyle1[, $rstyle2]])
1241
1242Similar to C<scr_xor_span>, but xors a rectangle instead. Trailing
1243whitespace will additionally be xored with the C<$rstyle2>, which defaults
1244to C<RS_RVid | RS_Uline>, which removes reverse video again and underlines
1245it instead. Both styles I<MUST NOT> contain font styles.
1246
1247=item $term->scr_bell
1248
1249Ring the bell!
1250
1251=item $term->scr_add_lines ($string)
1252
1253Write the given text string to the screen, as if output by the application
1254running inside the terminal. It may not contain command sequences (escape
1255codes), but is free to use line feeds, carriage returns and tabs. The
1256string is a normal text string, not in locale-dependent encoding.
1257
1258Normally its not a good idea to use this function, as programs might be
1259confused by changes in cursor position or scrolling. Its useful inside a
1260C<on_add_lines> hook, though.
1261
1262=item $term->cmd_parse ($octets)
1263
1264Similar to C<scr_add_lines>, but the argument must be in the
1265locale-specific encoding of the terminal and can contain command sequences
1266(escape codes) that will be interpreted.
551 1267
552=item $term->tt_write ($octets) 1268=item $term->tt_write ($octets)
553 1269
554Write the octets given in C<$data> to the tty (i.e. as program input). To 1270Write the octets given in C<$data> to the tty (i.e. as program input). To
555pass characters instead of octets, you should convert your strings first 1271pass characters instead of octets, you should convert your strings first
556to the locale-specific encoding using C<< $term->locale_encode >>. 1272to the locale-specific encoding using C<< $term->locale_encode >>.
557 1273
1274=item $old_events = $term->pty_ev_events ([$new_events])
1275
1276Replaces the event mask of the pty watcher by the given event mask. Can
1277be used to suppress input and output handling to the pty/tty. See the
1278description of C<< urxvt::timer->events >>. Make sure to always restore
1279the previous value.
1280
1281=item $windowid = $term->parent
1282
1283Return the window id of the toplevel window.
1284
1285=item $windowid = $term->vt
1286
1287Return the window id of the terminal window.
1288
1289=item $term->vt_emask_add ($x_event_mask)
1290
1291Adds the specified events to the vt event mask. Useful e.g. when you want
1292to receive pointer events all the times:
1293
1294 $term->vt_emask_add (urxvt::PointerMotionMask);
1295
1296=item $window_width = $term->width
1297
1298=item $window_height = $term->height
1299
1300=item $font_width = $term->fwidth
1301
1302=item $font_height = $term->fheight
1303
1304=item $font_ascent = $term->fbase
1305
558=item $nrow = $term->nrow 1306=item $terminal_rows = $term->nrow
559 1307
560=item $ncol = $term->ncol 1308=item $terminal_columns = $term->ncol
561 1309
562Return the number of rows/columns of the terminal window (i.e. as 1310=item $has_focus = $term->focus
563specified by C<-geometry>, excluding any scrollback).
564 1311
1312=item $is_mapped = $term->mapped
1313
1314=item $max_scrollback = $term->saveLines
1315
1316=item $nrow_plus_saveLines = $term->total_rows
1317
1318=item $topmost_scrollback_row = $term->top_row
1319
1320Return various integers describing terminal characteristics.
1321
1322=item $x_display = $term->display_id
1323
1324Return the DISPLAY used by rxvt-unicode.
1325
1326=item $lc_ctype = $term->locale
1327
1328Returns the LC_CTYPE category string used by this rxvt-unicode.
1329
565=item $nsaved = $term->nsaved 1330=item $env = $term->env
566 1331
567Returns the number of lines in the scrollback buffer. 1332Returns a copy of the environment in effect for the terminal as a hashref
1333similar to C<\%ENV>.
1334
1335=cut
1336
1337sub env {
1338 if (my $env = $_[0]->_env) {
1339 +{ map /^([^=]+)(?:=(.*))?$/s && ($1 => $2), @$env }
1340 } else {
1341 +{ %ENV }
1342 }
1343}
1344
1345=item $modifiermask = $term->ModLevel3Mask
1346
1347=item $modifiermask = $term->ModMetaMask
1348
1349=item $modifiermask = $term->ModNumLockMask
1350
1351Return the modifier masks corresponding to the "ISO Level 3 Shift" (often
1352AltGr), the meta key (often Alt) and the num lock key, if applicable.
568 1353
569=item $view_start = $term->view_start ([$newvalue]) 1354=item $view_start = $term->view_start ([$newvalue])
570 1355
571Returns the negative row number of the topmost line. Minimum value is 1356Returns the row number of the topmost displayed line. Maximum value is
572C<0>, which displays the normal terminal contents. Larger values scroll 1357C<0>, which displays the normal terminal contents. Lower values scroll
573this many lines into the scrollback buffer. 1358this many lines into the scrollback buffer.
574 1359
575=item $term->want_refresh 1360=item $term->want_refresh
576 1361
577Requests a screen refresh. At the next opportunity, rxvt-unicode will 1362Requests a screen refresh. At the next opportunity, rxvt-unicode will
583=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]]) 1368=item $text = $term->ROW_t ($row_number[, $new_text[, $start_col]])
584 1369
585Returns the text of the entire row with number C<$row_number>. Row C<0> 1370Returns the text of the entire row with number C<$row_number>. Row C<0>
586is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost 1371is the topmost terminal line, row C<< $term->$ncol-1 >> is the bottommost
587terminal line. The scrollback buffer starts at line C<-1> and extends to 1372terminal line. The scrollback buffer starts at line C<-1> and extends to
588line C<< -$term->nsaved >>. 1373line C<< -$term->nsaved >>. Nothing will be returned if a nonexistent line
1374is requested.
589 1375
590If C<$new_text> is specified, it will replace characters in the current 1376If C<$new_text> is specified, it will replace characters in the current
591line, starting at column C<$start_col> (default C<0>), which is useful 1377line, starting at column C<$start_col> (default C<0>), which is useful
592to replace only parts of a line. The font index in the rendition will 1378to replace only parts of a line. The font index in the rendition will
593automatically be updated. 1379automatically be updated.
615 1401
616See the section on RENDITION, above. 1402See the section on RENDITION, above.
617 1403
618=item $length = $term->ROW_l ($row_number[, $new_length]) 1404=item $length = $term->ROW_l ($row_number[, $new_length])
619 1405
620Returns the number of screen cells that are in use ("the line length"). If 1406Returns the number of screen cells that are in use ("the line
621it is C<-1>, then the line is part of a multiple-row logical "line", which 1407length"). Unlike the urxvt core, this returns C<< $term->ncol >> if the
622means all characters are in use and it is continued on the next row. 1408line is joined with the following one.
1409
1410=item $bool = $term->is_longer ($row_number)
1411
1412Returns true if the row is part of a multiple-row logical "line" (i.e.
1413joined with the following row), which means all characters are in use
1414and it is continued on the next row (and possibly a continuation of the
1415previous row(s)).
1416
1417=item $line = $term->line ($row_number)
1418
1419Create and return a new C<urxvt::line> object that stores information
1420about the logical line that row C<$row_number> is part of. It supports the
1421following methods:
1422
1423=over 4
1424
1425=item $text = $line->t ([$new_text])
1426
1427Returns or replaces the full text of the line, similar to C<ROW_t>
1428
1429=item $rend = $line->r ([$new_rend])
1430
1431Returns or replaces the full rendition array of the line, similar to C<ROW_r>
1432
1433=item $length = $line->l
1434
1435Returns the length of the line in cells, similar to C<ROW_l>.
1436
1437=item $rownum = $line->beg
1438
1439=item $rownum = $line->end
1440
1441Return the row number of the first/last row of the line, respectively.
1442
1443=item $offset = $line->offset_of ($row, $col)
1444
1445Returns the character offset of the given row|col pair within the logical
1446line. Works for rows outside the line, too, and returns corresponding
1447offsets outside the string.
1448
1449=item ($row, $col) = $line->coord_of ($offset)
1450
1451Translates a string offset into terminal coordinates again.
1452
1453=back
1454
1455=cut
1456
1457sub line {
1458 my ($self, $row) = @_;
1459
1460 my $maxrow = $self->nrow - 1;
1461
1462 my ($beg, $end) = ($row, $row);
1463
1464 --$beg while $self->ROW_is_longer ($beg - 1);
1465 ++$end while $self->ROW_is_longer ($end) && $end < $maxrow;
1466
1467 bless {
1468 term => $self,
1469 beg => $beg,
1470 end => $end,
1471 ncol => $self->ncol,
1472 len => ($end - $beg) * $self->ncol + $self->ROW_l ($end),
1473 }, urxvt::line::
1474}
1475
1476sub urxvt::line::t {
1477 my ($self) = @_;
1478
1479 if (@_ > 1)
1480 {
1481 $self->{term}->ROW_t ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
1482 for $self->{beg} .. $self->{end};
1483 }
1484
1485 defined wantarray &&
1486 substr +(join "", map $self->{term}->ROW_t ($_), $self->{beg} .. $self->{end}),
1487 0, $self->{len}
1488}
1489
1490sub urxvt::line::r {
1491 my ($self) = @_;
1492
1493 if (@_ > 1)
1494 {
1495 $self->{term}->ROW_r ($_, $_[1], 0, ($_ - $self->{beg}) * $self->{ncol}, $self->{ncol})
1496 for $self->{beg} .. $self->{end};
1497 }
1498
1499 if (defined wantarray) {
1500 my $rend = [
1501 map @{ $self->{term}->ROW_r ($_) }, $self->{beg} .. $self->{end}
1502 ];
1503 $#$rend = $self->{len} - 1;
1504 return $rend;
1505 }
1506
1507 ()
1508}
1509
1510sub urxvt::line::beg { $_[0]{beg} }
1511sub urxvt::line::end { $_[0]{end} }
1512sub urxvt::line::l { $_[0]{len} }
1513
1514sub urxvt::line::offset_of {
1515 my ($self, $row, $col) = @_;
1516
1517 ($row - $self->{beg}) * $self->{ncol} + $col
1518}
1519
1520sub urxvt::line::coord_of {
1521 my ($self, $offset) = @_;
1522
1523 use integer;
1524
1525 (
1526 $offset / $self->{ncol} + $self->{beg},
1527 $offset % $self->{ncol}
1528 )
1529}
623 1530
624=item $text = $term->special_encode $string 1531=item $text = $term->special_encode $string
625 1532
626Converts a perl string into the special encoding used by rxvt-unicode, 1533Converts a perl string into the special encoding used by rxvt-unicode,
627where one character corresponds to one screen cell. See 1534where one character corresponds to one screen cell. See
630=item $string = $term->special_decode $text 1537=item $string = $term->special_decode $text
631 1538
632Converts rxvt-unicodes text reprsentation into a perl string. See 1539Converts rxvt-unicodes text reprsentation into a perl string. See
633C<< $term->ROW_t >> for details. 1540C<< $term->ROW_t >> for details.
634 1541
1542=item $success = $term->grab_button ($button, $modifiermask)
1543
1544Registers a synchronous button grab. See the XGrabButton manpage.
1545
1546=item $success = $term->grab ($eventtime[, $sync])
1547
1548Calls XGrabPointer and XGrabKeyboard in asynchronous (default) or
1549synchronous (C<$sync> is true). Also remembers the grab timestampe.
1550
1551=item $term->allow_events_async
1552
1553Calls XAllowEvents with AsyncBoth for the most recent grab.
1554
1555=item $term->allow_events_sync
1556
1557Calls XAllowEvents with SyncBoth for the most recent grab.
1558
1559=item $term->allow_events_replay
1560
1561Calls XAllowEvents with both ReplayPointer and ReplayKeyboard for the most
1562recent grab.
1563
1564=item $term->ungrab
1565
1566Calls XUngrab for the most recent grab. Is called automatically on
1567evaluation errors, as it is better to lose the grab in the error case as
1568the session.
1569
635=back 1570=back
1571
1572=cut
1573
1574package urxvt::popup;
1575
1576=head2 The C<urxvt::popup> Class
1577
1578=over 4
1579
1580=cut
1581
1582sub add_item {
1583 my ($self, $item) = @_;
1584
1585 $item->{rend}{normal} = "\x1b[0;30;47m" unless exists $item->{rend}{normal};
1586 $item->{rend}{hover} = "\x1b[0;30;46m" unless exists $item->{rend}{hover};
1587 $item->{rend}{active} = "\x1b[m" unless exists $item->{rend}{active};
1588
1589 $item->{render} ||= sub { $_[0]{text} };
1590
1591 push @{ $self->{item} }, $item;
1592}
1593
1594=item $popup->add_title ($title)
1595
1596Adds a non-clickable title to the popup.
1597
1598=cut
1599
1600sub add_title {
1601 my ($self, $title) = @_;
1602
1603 $self->add_item ({
1604 rend => { normal => "\x1b[38;5;11;44m", hover => "\x1b[38;5;11;44m", active => "\x1b[38;5;11;44m" },
1605 text => $title,
1606 activate => sub { },
1607 });
1608}
1609
1610=item $popup->add_separator ([$sepchr])
1611
1612Creates a separator, optionally using the character given as C<$sepchr>.
1613
1614=cut
1615
1616sub add_separator {
1617 my ($self, $sep) = @_;
1618
1619 $sep ||= "=";
1620
1621 $self->add_item ({
1622 rend => { normal => "\x1b[0;30;47m", hover => "\x1b[0;30;47m", active => "\x1b[0;30;47m" },
1623 text => "",
1624 render => sub { $sep x $self->{term}->ncol },
1625 activate => sub { },
1626 });
1627}
1628
1629=item $popup->add_button ($text, $cb)
1630
1631Adds a clickable button to the popup. C<$cb> is called whenever it is
1632selected.
1633
1634=cut
1635
1636sub add_button {
1637 my ($self, $text, $cb) = @_;
1638
1639 $self->add_item ({ type => "button", text => $text, activate => $cb});
1640}
1641
1642=item $popup->add_toggle ($text, $cb, $initial_value)
1643
1644Adds a toggle/checkbox item to the popup. Teh callback gets called
1645whenever it gets toggled, with a boolean indicating its value as its first
1646argument.
1647
1648=cut
1649
1650sub add_toggle {
1651 my ($self, $text, $cb, $value) = @_;
1652
1653 my $item; $item = {
1654 type => "button",
1655 text => " $text",
1656 value => $value,
1657 render => sub { ($_[0]{value} ? "* " : " ") . $text },
1658 activate => sub { $cb->($_[1]{value} = !$_[1]{value}); },
1659 };
1660
1661 $self->add_item ($item);
1662}
1663
1664=item $popup->show
1665
1666Displays the popup (which is initially hidden).
1667
1668=cut
1669
1670sub show {
1671 my ($self) = @_;
1672
1673 local $urxvt::popup::self = $self;
1674
1675 my $env = $self->{term}->env;
1676 # we can't hope to reproduce the locale algorithm, so nuke LC_ALL and set LC_CTYPE.
1677 delete $env->{LC_ALL};
1678 $env->{LC_CTYPE} = $self->{term}->locale;
1679
1680 urxvt::term->new ($env, "popup",
1681 "--perl-lib" => "", "--perl-ext-common" => "",
1682 "-pty-fd" => -1, "-sl" => 0,
1683 "-b" => 1, "-bd" => "grey80", "-bl", "-override-redirect",
1684 "--transient-for" => $self->{term}->parent,
1685 "-display" => $self->{term}->display_id,
1686 "-pe" => "urxvt-popup")
1687 or die "unable to create popup window\n";
1688}
1689
1690sub DESTROY {
1691 my ($self) = @_;
1692
1693 delete $self->{term}{_destroy}{$self};
1694 $self->{term}->ungrab;
1695}
1696
1697=back
1698
1699=cut
1700
1701package urxvt::watcher;
1702
1703@urxvt::timer::ISA = __PACKAGE__;
1704@urxvt::iow::ISA = __PACKAGE__;
1705@urxvt::pw::ISA = __PACKAGE__;
1706@urxvt::iw::ISA = __PACKAGE__;
636 1707
637=head2 The C<urxvt::timer> Class 1708=head2 The C<urxvt::timer> Class
638 1709
639This class implements timer watchers/events. Time is represented as a 1710This class implements timer watchers/events. Time is represented as a
640fractional number of seconds since the epoch. Example: 1711fractional number of seconds since the epoch. Example:
679 1750
680=item $timer = $timer->start ($tstamp) 1751=item $timer = $timer->start ($tstamp)
681 1752
682Set the event trigger time to C<$tstamp> and start the timer. 1753Set the event trigger time to C<$tstamp> and start the timer.
683 1754
1755=item $timer = $timer->after ($delay)
1756
1757Like C<start>, but sets the expiry timer to c<urxvt::NOW + $delay>.
1758
684=item $timer = $timer->stop 1759=item $timer = $timer->stop
685 1760
686Stop the timer. 1761Stop the timer.
687 1762
688=back 1763=back
693 1768
694 $term->{socket} = ... 1769 $term->{socket} = ...
695 $term->{iow} = urxvt::iow 1770 $term->{iow} = urxvt::iow
696 ->new 1771 ->new
697 ->fd (fileno $term->{socket}) 1772 ->fd (fileno $term->{socket})
698 ->events (1) # wait for read data 1773 ->events (urxvt::EVENT_READ)
699 ->start 1774 ->start
700 ->cb (sub { 1775 ->cb (sub {
701 my ($iow, $revents) = @_; 1776 my ($iow, $revents) = @_;
702 # $revents must be 1 here, no need to check 1777 # $revents must be 1 here, no need to check
703 sysread $term->{socket}, my $buf, 8192 1778 sysread $term->{socket}, my $buf, 8192
720 1795
721Set the filedescriptor (not handle) to watch. 1796Set the filedescriptor (not handle) to watch.
722 1797
723=item $iow = $iow->events ($eventmask) 1798=item $iow = $iow->events ($eventmask)
724 1799
725Set the event mask to watch. Bit #0 (value C<1>) enables watching for read 1800Set the event mask to watch. The only allowed values are
726data, Bit #1 (value C<2>) enables watching for write data. 1801C<urxvt::EVENT_READ> and C<urxvt::EVENT_WRITE>, which might be ORed
1802together, or C<urxvt::EVENT_NONE>.
727 1803
728=item $iow = $iow->start 1804=item $iow = $iow->start
729 1805
730Start watching for requested events on the given handle. 1806Start watching for requested events on the given handle.
731 1807
732=item $iow = $iow->stop 1808=item $iow = $iow->stop
733 1809
734Stop watching for events on the given filehandle. 1810Stop watching for events on the given filehandle.
1811
1812=back
1813
1814=head2 The C<urxvt::iw> Class
1815
1816This class implements idle watchers, that get called automatically when
1817the process is idle. They should return as fast as possible, after doing
1818some useful work.
1819
1820=over 4
1821
1822=item $iw = new urxvt::iw
1823
1824Create a new idle watcher object in stopped state.
1825
1826=item $iw = $iw->cb (sub { my ($iw) = @_; ... })
1827
1828Set the callback to be called when the watcher triggers.
1829
1830=item $timer = $timer->start
1831
1832Start the watcher.
1833
1834=item $timer = $timer->stop
1835
1836Stop the watcher.
1837
1838=back
1839
1840=head2 The C<urxvt::pw> Class
1841
1842This class implements process watchers. They create an event whenever a
1843process exits, after which they stop automatically.
1844
1845 my $pid = fork;
1846 ...
1847 $term->{pw} = urxvt::pw
1848 ->new
1849 ->start ($pid)
1850 ->cb (sub {
1851 my ($pw, $exit_status) = @_;
1852 ...
1853 });
1854
1855=over 4
1856
1857=item $pw = new urxvt::pw
1858
1859Create a new process watcher in stopped state.
1860
1861=item $pw = $pw->cb (sub { my ($pw, $exit_status) = @_; ... })
1862
1863Set the callback to be called when the timer triggers.
1864
1865=item $pw = $timer->start ($pid)
1866
1867Tells the wqtcher to start watching for process C<$pid>.
1868
1869=item $pw = $pw->stop
1870
1871Stop the watcher.
735 1872
736=back 1873=back
737 1874
738=head1 ENVIRONMENT 1875=head1 ENVIRONMENT
739 1876
742This variable controls the verbosity level of the perl extension. Higher 1879This variable controls the verbosity level of the perl extension. Higher
743numbers indicate more verbose output. 1880numbers indicate more verbose output.
744 1881
745=over 4 1882=over 4
746 1883
747=item 0 - only fatal messages 1884=item == 0 - fatal messages
748 1885
749=item 3 - script loading and management 1886=item >= 3 - script loading and management
750 1887
751=item 10 - all events received 1888=item >=10 - all called hooks
1889
1890=item >=11 - hook reutrn values
752 1891
753=back 1892=back
754 1893
755=head1 AUTHOR 1894=head1 AUTHOR
756 1895

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